CN106282761B - A kind of silicon steel, preparation method and application - Google Patents
A kind of silicon steel, preparation method and application Download PDFInfo
- Publication number
- CN106282761B CN106282761B CN201610630625.5A CN201610630625A CN106282761B CN 106282761 B CN106282761 B CN 106282761B CN 201610630625 A CN201610630625 A CN 201610630625A CN 106282761 B CN106282761 B CN 106282761B
- Authority
- CN
- China
- Prior art keywords
- silicon steel
- present
- steel
- roll bending
- rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 128
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 229910052796 boron Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 238000000137 annealing Methods 0.000 claims description 27
- 238000013000 roll bending Methods 0.000 claims description 27
- 238000005098 hot rolling Methods 0.000 claims description 25
- 229910052748 manganese Inorganic materials 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 238000005554 pickling Methods 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 229910052729 chemical element Inorganic materials 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000005097 cold rolling Methods 0.000 claims description 8
- 238000003763 carbonization Methods 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 4
- 239000011651 chromium Substances 0.000 abstract description 28
- 238000005096 rolling process Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 14
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 5
- 238000005242 forging Methods 0.000 abstract description 3
- 239000011573 trace mineral Substances 0.000 abstract description 3
- 235000013619 trace mineral Nutrition 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 22
- 239000011572 manganese Substances 0.000 description 17
- 238000005266 casting Methods 0.000 description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1222—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
The present invention provides a kind of silicon steel, preparation method and applications.In silicon steel of the present invention, pass through the selection and adjustment to adding trace element in the silicon steel, regulate and control the content of the trace element such as added manganese, chromium, boron simultaneously, so that silicon steel of the present invention is while with good electromagnetic performance, additionally it is possible to have good mechanical performance.Simultaneously, the present invention also provides a kind of preparation methods of the silicon steel, in the method for the present invention, the steel billet being made up of forging with element of the present invention, silicon steel of the present invention is prepared by the billet rolling again, there is preparation method simplicity, obtained silicon steel electromagnetic performance and good mechanical property.Further, the present invention also provides the purposes of the silicon steel, silicon steel of the present invention has good electromagnetic performance and mechanical performance, it is thus possible to be used to prepare in the devices such as the motor rotor all having higher requirements to material electromagnetic performance and mechanical performance.
Description
Technical field
The present invention relates to steel field, in particular to a kind of silicon steel, preparation method and application.
Background technology
Silicon steel refers to the extremely low carbon duriron alloy that silicon content is 0.5% to 4.5%, is divided due to structure and purposes difference
For non-orientation silicon steel and orientation silicon steel.Silicon steel is mainly used as the iron core of various motors, generator, compressor, motor and transformer,
It is the indispensable raw material product of the industries such as electric power, household electrical appliances.
Elevator is mainly made of with AC two speed motor stator and rotor, and stator is stationary part, and rotor is
Rotating part has certain air gap between stator and rotor.Rotor is made of iron core and winding, and rotor core is fitted in shaft
On, it is formed by silicon steel plate stacking.
Existing electrician's silicon steel sheet is all using electromagnetic performance as main performance index, and chemical composition is to ensure electromagnetic performance
Based on, the attributes such as iron loss and intensity to silicon steel sheet have it is certain ignore, it is poor so as to cause silicon steel sheet mechanical performance,
Intensity is relatively low, and service life is shorter.
Therefore, a kind of silicon steel with good mechanical properties and electromagnetic performance is developed, just into current urgently to be resolved hurrily
Technical problem.
In view of this, it is special to propose the present invention.
Invention content
The first object of the present invention is to provide a kind of silicon steel, pass through to adding micro- selection in the silicon steel
And adjustment, while regulate and control the content of the trace element such as added manganese, chromium, boron, so that silicon steel of the present invention is with good
While electromagnetic performance, additionally it is possible to there is good mechanical performance, and then it is low to solve prior art silicon steel mechanical strength, it can not
Meet electrician's use, especially as technical problems such as motor rotor use demands.
The second object of the present invention is to provide a kind of preparation method of the silicon steel, in the method for the present invention, passes through forging
The steel billet formed with element of the present invention is made, then silicon steel of the present invention is prepared by the billet rolling, there is preparation method simplicity,
The advantages that obtained silicon steel electromagnetic performance and good mechanical property.
Third object of the present invention is to provide a kind of purposes of the silicon steel, and silicon steel of the present invention has good electromagnetism
Performance and mechanical performance, it is thus possible to be used to prepare all have higher requirements to material electromagnetic performance and mechanical performance it is electronic
In the devices such as machine rotor.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of silicon steel, the mass percent of chemical element is contained by the silicon steel：Si 3.5~4.0%, C0.05~
4.0%, P 0.16~0.19%, S 0.04~0.06%, Mn 0.60~0.70%, Cr 0.08~0.10%, B 0.01~
0.10%, surplus is Fe and other inevitable impurity.
In the present invention, by adulterating the elements such as Mn, Cr, B, P into the silicon steel, and each element content is carried out further
Selection so that silicon steel of the present invention is while with good electromagnetic performance, additionally it is possible to have good mechanical performance.
Specifically, in silicon steel of the present invention, carbon can increase the intensity and wearability of silicon steel, however carbon also can
Increase the loss of magnetic core.It is, therefore, necessary to the dosage to carbon regulates and controls, so as to while silicon steel intensity is improved, also effectively control
Make the core loss caused by the addition of carbon；In silicon steel of the present invention, P elements can increase the corrosion resistance of silicon steel
And intensity；In silicon steel of the present invention, chromium can improve corrosion resistance, intensity and the hardness and wearability of silicon steel, and improve
The electromagnetic performance of silicon steel；In silicon steel of the present invention, the use of manganese element can increase the intensity, hardness, wearability of silicon steel, and improve
The electromagnetic performance of silicon steel；In silicon steel of the present invention, the use of boron element can improve the magnetism of silicon steel.Further, silicon of the present invention
Each element content must be also controlled in certain range in steel, can play good effect, otherwise also due to element
Between interaction so that silicon steel from meeting the requirement of the magnetism and/or mechanical performance of normal use.
Optionally, in the present invention, the mass percent of the silicon steel containedization element is：Si 3.6~3.8%, C 0.1
~2.0%, P 0.17~0.18%, S 0.04~0.06%, Mn 0.60~0.70%, Cr 0.08~0.10%, B 0.05
~0.08%, surplus is Fe and other inevitable impurity.
In the present invention, by the further adjustment and optimization to each element content in silicon steel, so as to advanced optimize this
The performance of invention silicon steel.
Governed, in the present invention, the mass percent of chemical element is contained by the silicon steel：Si 3.7%, C 1.5%, P
0.18%th, S：0.05%th, Mn 0.65%, Cr 0.09%, B 0.07%, surplus are Fe and inevitable impurity.
Meanwhile the present invention also provides the preparation method of the silicon steel, described method includes following steps：
(1) steel billet is made after smelting and cast；
(2) by hot rolling of steel billet；
(3) gained plank after hot rolling is batched；
(4) gained roll bending normalizing annealing after batching, and pickling；
(5) roll bending after pickling is subjected to cold rolling, and carbonization treatment, then high annealing is to get the silicon steel.
In the present invention, this hair is prepared by steel billet of the forging with element of the present invention composition, then by the billet rolling
Bright silicon steel has many advantages, such as preparation method simplicity, obtained silicon steel electromagnetic performance and good mechanical property.
It is described to smelt to be smelted using vacuum smelting furnace in the present invention, obtain the silicon steel steel with chemical composition of the present invention
Base.
In the present invention, the hot rolling is the plank into thickness for 2~3mm by billet rolling.
Optionally, in the present invention, the temperature of hot rolling described in step (2) is 1200~1300 DEG C；Preferably, it is of the invention
In, the temperature of the hot rolling is 1250~1280 DEG C, such as can be, but be not limited to 1260 DEG C, 1270 DEG C or 1275 DEG C etc..
In the present invention, the hot rolling includes roughing and finish rolling；Wherein, the roughing is big volume under pressure high-speed rolling, and is increased
Add cooling water amount to regulate and control rolling temperature.
In the present invention, the cold rolling is that roll bending is rolling to thickness for 0.20~0.25mm.
Optionally, in the present invention, the temperature batched described in step (3) is 400~500 DEG C；Such as can be, but unlimited
In 410 DEG C, 420 DEG C, 430 DEG C, 440 DEG C, 450 DEG C, 460 DEG C, 470 DEG C, 480 DEG C or 490 DEG C etc..
Optionally, in the present invention, the temperature of normalizing annealing described in step (4) is 1200~1300 DEG C, normalizing annealing
Time is 0.5~2.5h；Such as the temperature of normalizing annealing can be, but be not limited to 1210 DEG C, 1220 DEG C, 1230 DEG C, 1240 DEG C,
1250 DEG C, 1260 DEG C, 1270 DEG C, 1280 DEG C or 1290 DEG C etc.；The time of normalizing can be but be not limited to 1h, 1.5h or 2h
Deng.
In the present invention, by the selection and adjustment of the temperature and time to normalizing annealing, so as to further regulate and control volume
The morphological feature of rear roll bending is taken, and so that microcosmic composition and crystal habit are more uniform in each section of roll bending.
Optionally, in the present invention, pickling described in step (4) is that the roll bending after normalizing is molten with a concentration of 15% hydrochloric acid
Liquid impregnates 5~15min and removes removing iron scale.
In the present invention, by the adjustment and optimization to acid pickling and its concentration and pickling time, so as to have
While effect removal surface of silicon steel iron scale, surface of silicon steel will not also be damaged due to long soaking time.
Optionally, in the present invention, the temperature of high annealing described in step (5) is 600~1000 DEG C；Preferably, this hair
In bright, the temperature of the high annealing is 800~1000 DEG C；Such as can be, but be not limited to 810 DEG C, 820 DEG C, 830 DEG C, 840
℃、850℃、860℃、870℃、880℃、890℃、900℃、910℃、920℃、930℃、940℃、950℃、960℃、
970 DEG C, 980 DEG C or 990 DEG C etc..
Specifically, the preparation method step of silicon steel of the present invention is as follows：
(1) steel billet with chemical composition of the present invention is made after smelting and cast；
(2) by steel billet hot rolling under the conditions of 1200~1300 DEG C, and the plank that thickness is 2~3mm is obtained；
Wherein, the hot rolling is first roughing, then finish rolling；
Wherein, the roughing is big volume under pressure high-speed rolling, and increases cooling water amount to regulate and control rolling temperature 1200
~1300 DEG C；
(3) gained plank after hot rolling is batched under the conditions of 400~500 DEG C；
(4) gained roll bending 0.5~2.5h of normalizing annealing under the conditions of 1200~1300 DEG C after batching, and with 15% salt
Acid solution impregnates 5~15min pickling to remove removing iron scale；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plank that thickness is 0.20~0.25mm, then carry out decarburization
Processing, and under the conditions of 600~1000 DEG C high annealing to get the silicon steel.
Likewise, the application the present invention also provides silicon steel of the present invention in motor rotor is prepared.
Silicon steel of the present invention has good electromagnetic performance and mechanical performance, it is thus possible to be used to prepare to material electromagnetically
In the devices such as the motor rotor that energy and mechanical performance all have higher requirements.
Optionally, in the present invention, the motor is AC two speed motor.
Compared with prior art, beneficial effects of the present invention are：
(1) in the present invention, by adulterating the elements such as Mn, Cr, B, P into the silicon steel, and to each element content into traveling
The selection of one step, so that silicon steel of the present invention is with good electromagnetic performance and mechanical performance；
(2) in the present invention, by hot rolling in being prepared to silicon steel, batch, normalizing and etc. treatment temperature and/or place in condition
Selection of time and adjustment are managed, surface quality is good, silicon steel in homogeneous thickness so as to be made.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person, the condition suggested according to normal condition or manufacturer carry out.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
(1) using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si 3.5%, C
0.05%, P 0.16%, S 0.04%, Mn 0.60%, Cr 0.08%, B 0.01%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
(2) by steel billet hot rolling under the conditions of 1250~1280 DEG C, the silicon steel plank that thickness is 2mm is obtained；
Wherein, the hot rolling is first roughing, then finish rolling；
Wherein, the roughing is big volume under pressure high-speed rolling, and increases cooling water amount to regulate and control rolling temperature 1250
~1280 DEG C；
(3) gained plank after hot rolling is batched under the conditions of 400 DEG C；
(4) gained roll bending normalizing annealing 0.5h under the conditions of 1200 DEG C after batching, then by the roll bending after normalizing annealing
15min, which is impregnated, with a concentration of 15% hydrochloric acid solution removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plank that thickness is 0.20mm；Then, carbonization treatment is carried out,
And under the conditions of 900 DEG C high annealing to get embodiment 1 silicon steel.
Embodiment 2
(1) using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si 3.6%, C
0.80%, P 0.17%, S 0.05%, Mn 0.63%, Cr 0.09%, B 0.06%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
(2) by steel billet hot rolling under the conditions of 1250~1280 DEG C, the silicon steel plank that thickness is 2mm is obtained；
Wherein, the hot rolling is first roughing, then finish rolling；
Wherein, the roughing is big volume under pressure high-speed rolling, and increases cooling water amount to regulate and control rolling temperature 1250
~1280 DEG C；
(3) gained plank after hot rolling is batched under the conditions of 400 DEG C；
(4) gained roll bending normalizing annealing 1h under the conditions of 1200 DEG C after batching, then uses the roll bending after normalizing annealing
A concentration of 15% hydrochloric acid solution impregnates 10min and removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plank that thickness is 0.25mm；Then, carbonization treatment is carried out,
And under the conditions of 900 DEG C high annealing to get embodiment 2 silicon steel.
Embodiment 3
(1) using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si 3.7%, C
1.5%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
(2) by steel billet hot rolling under the conditions of 1250~1280 DEG C, the silicon steel plank that thickness is 3mm is obtained；
Wherein, the hot rolling is first roughing, then finish rolling；
Wherein, the roughing is big volume under pressure high-speed rolling, and increases cooling water amount to regulate and control rolling temperature 1250
~1280 DEG C；
(3) gained plank after hot rolling is batched under the conditions of 500 DEG C；
(4) gained roll bending normalizing annealing 0.5h under the conditions of 1200 DEG C after batching, then by the roll bending after normalizing annealing
8min, which is impregnated, with a concentration of 15% hydrochloric acid solution removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plank that thickness is 0.25mm；Then, carbonization treatment is carried out,
And under the conditions of 900 DEG C high annealing to get embodiment 3 silicon steel.
Embodiment 4
(1) using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si 4.0%, C
4.0%, P 0.19%, S 0.06%, Mn 0.70%, Cr 0.10%, B 0.10%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
(2) by steel billet hot rolling under the conditions of 1250~1280 DEG C, the silicon steel plank that thickness is 2mm is obtained；
Wherein, the hot rolling is first roughing, then finish rolling；
Wherein, the roughing is big volume under pressure high-speed rolling, and increases cooling water amount to regulate and control rolling temperature 1250
~1280 DEG C；
(3) gained plank after hot rolling is batched under the conditions of 400 DEG C；
(4) gained roll bending normalizing annealing 0.5h under the conditions of 1200 DEG C after batching, then by the roll bending after normalizing annealing
15min, which is impregnated, with a concentration of 15% hydrochloric acid solution removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plank that thickness is 0.20mm；Then, carbonization treatment is carried out,
And under the conditions of 900 DEG C high annealing to get embodiment 4 silicon steel.
Experimental example 1
From the silicon steel of embodiment 1-4,5 parts of experiment materials are randomly selected respectively, carry out the strength degree σ b of silicon steel and are bent
The measuring mechanical property of the silicon steel such as limit σ s is taken, and is recorded, then calculate the mean intensity limit of each group silicon steel and is averagely bent
The limit and yield tensile ratio (σ s/ σ b) are taken, it is as a result as follows：
Meanwhile from the silicon steel of embodiment 1-4,5 parts of experiment materials are randomly selected respectively, carry out magnetic strength B8And iron loss
P17/50Test, and record, the magnetic strength of each group silicon steel and iron loss average value are then calculated, it is as a result as follows：
By above-mentioned test result it is found that silicon steel of the present invention has good mechanical performance and magnetic property.Further, will
The silicon steel of 1-4 of the embodiment of the present invention further prepares AC two speed motor rotor, and is tested under normal usage,
Test result shows that motor rotor prepared by embodiment 1-4 silicon steel under conditions of operating is more than 15000h, remains able to
Normal work.
Comparative example 1
Using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si3.7%, C
1.5%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.10%, B 0.13%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
Then according in embodiment 3, the method for step (2)-(5) prepares the silicon steel of comparative example 1.
Difference lies in chromium, the content of boron in silicon steel are different for the silicon steel of the silicon steel of comparative example 1 and embodiment 3；Meanwhile comparative example
In 1 silicon steel, the content of boron is higher than the range of contained boron element in the application.
Comparative example 2
Using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si3.7%, C
1.5%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.15%, B 0.05%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；Then according in embodiment 3, the method for step (2)-(5) prepares the silicon steel of comparative example 2.
Difference lies in chromium, the content of boron in silicon steel are different for the silicon steel of the silicon steel of comparative example 2 and embodiment 3；Meanwhile comparative example
In 2 silicon steel, the content of chromium is higher than the range of contained chromium in the application.
Comparative example 3
Using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si3.5%, C
1.5%, P 0.18%, S 0.05%, Mn 0.75%, Cr 0.08%, B 0.08%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
Then according in embodiment 3, the method for step (2)-(5) prepares the silicon steel of comparative example 3.The silicon steel of comparative example 3 with
Difference lies in manganese, chromium, the content of boron in silicon steel are different for the silicon steel of embodiment 3；Meanwhile in the silicon steel of comparative example 3, the content of manganese is high
The range of contained manganese element in the application.
Comparative example 4
Using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si3.7%, C
1.5%, P 0.18%, S 0.05%, Mn 0.90%, Cr 0.04%, B 0.005%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
Then according in embodiment 3, the method for step (2)-(5) prepares the silicon steel of comparative example 4.The silicon steel of comparative example 4 with
Difference lies in manganese, chromium, the content of boron in silicon steel are different for the silicon steel of embodiment 3；Meanwhile manganese content is higher than in the silicon steel of comparative example 4
The range of contained manganese element in the application, chromium content are less than the range of contained chromium in the application.
Comparative example 5
Using the method for vacuum metling and casting, the mass percent that contained chemical element is made is：Si3.7%, C
1.5%, P 0.12%, S 0.05%, Mn 0.50%, Cr 0.15%, B 0.01%, surplus are inevitable with other for Fe
Impurity silicon steel steel billet；
Then according in embodiment 3, the method for step (2)-(5) prepares the silicon steel of comparative example 5.The silicon steel of comparative example 5 with
Difference lies in manganese, chromium, the content of boron in silicon steel are different for the silicon steel of embodiment 3；Meanwhile the content of manganese is less than in 5 silicon steel of comparative example
The range of contained manganese element in the application, the content of chromium are higher than the range of contained chromium in the application.
Experimental example 2
From the silicon steel of comparative example 1-5,5 parts of experiment materials are randomly selected respectively, carry out strength degree σ b and yield limit σ
The measuring mechanical property of the silicon steel such as s, and recording, then calculate the mean intensity limit and the average yield limit of each group silicon steel with
And yield tensile ratio (σ s/ σ b), it is as a result as follows：
Meanwhile from the silicon steel of comparative example 1-5,5 parts of experiment materials are randomly selected respectively, carry out magnetic strength B8And iron loss
P17/50Test, and record, the magnetic strength of each group silicon steel and iron loss average value are then calculated, it is as a result as follows：
Silicon steel of the present invention with good electromagnetic performance and mechanical performance, can be used in preparing to material electromagnetic performance with
And in the devices such as motor rotor for all having higher requirements of mechanical performance.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (2)
- A kind of 1. application of silicon steel in motor rotor is prepared, which is characterized in that the quality of chemical element contained by the silicon steel Percentage is：Si 3.6~3.8%, C 0.1~2.0%, P 0.17~0.18%, S 0.04~0.06%, Mn 0.60~ 0.70%, Cr 0.08~0.10%, B 0.05~0.08%, surplus are Fe and other inevitable impurity；The preparation method of the silicon steel is as follows：(1) steel billet is made after smelting and cast；(2) by hot rolling of steel billet, the temperature of hot rolling is 1200~1300 DEG C；(3) plank obtained by hot rolling is batched, the temperature batched is 400~500 DEG C；(4) gained roll bending normalizing annealing after batching, and pickling；The temperature of normalizing annealing is 1200~1300 DEG C, and the time of normalizing annealing is 0.5~2.5h；Pickling is that the roll bending after normalizing is impregnated 5~15mi n with a concentration of 15% hydrochloric acid solution to remove removing iron scale；(5) roll bending after pickling is subjected to cold rolling, and carbonization treatment, then high annealing is to get the silicon steel；The temperature of high annealing is 600~1000 DEG C.
- 2. application according to claim 1, which is characterized in that the motor is AC two speed motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630625.5A CN106282761B (en) | 2016-08-02 | 2016-08-02 | A kind of silicon steel, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630625.5A CN106282761B (en) | 2016-08-02 | 2016-08-02 | A kind of silicon steel, preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106282761A CN106282761A (en) | 2017-01-04 |
| CN106282761B true CN106282761B (en) | 2018-06-29 |
Family
ID=57664867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610630625.5A Active CN106282761B (en) | 2016-08-02 | 2016-08-02 | A kind of silicon steel, preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106282761B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945078A (en) * | 2020-07-29 | 2020-11-17 | 苏州翔楼新材料股份有限公司 | Manufacturing method of cold-rolled steel strip for engine valve rocker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225396A (en) * | 1997-12-22 | 1999-08-11 | 新日本制铁株式会社 | Non-oriented electrical steel sheet having good punchability and process for producing same |
| CN1481445A (en) * | 2000-12-18 | 2004-03-10 | ��ɭ��²����ǡ��˹��ǡ���ض������� | Process for prodn. of grain oriented electrical steel strips |
| CN1611616A (en) * | 2003-10-27 | 2005-05-04 | 宝山钢铁股份有限公司 | Method for manufacturing cold-rolled orientation-free electrical sheet |
| CN1888112A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | High magnetic induction and high grad non-orientation electrical steel and its making process |
| CN101238226A (en) * | 2005-08-03 | 2008-08-06 | 蒂森克虏伯钢铁公司 | Method for producing a grain-oriented electrical steel strip |
-
2016
- 2016-08-02 CN CN201610630625.5A patent/CN106282761B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225396A (en) * | 1997-12-22 | 1999-08-11 | 新日本制铁株式会社 | Non-oriented electrical steel sheet having good punchability and process for producing same |
| CN1481445A (en) * | 2000-12-18 | 2004-03-10 | ��ɭ��²����ǡ��˹��ǡ���ض������� | Process for prodn. of grain oriented electrical steel strips |
| CN1611616A (en) * | 2003-10-27 | 2005-05-04 | 宝山钢铁股份有限公司 | Method for manufacturing cold-rolled orientation-free electrical sheet |
| CN1888112A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | High magnetic induction and high grad non-orientation electrical steel and its making process |
| CN101238226A (en) * | 2005-08-03 | 2008-08-06 | 蒂森克虏伯钢铁公司 | Method for producing a grain-oriented electrical steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106282761A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105950960B (en) | Driving motor for electric automobile non-orientation silicon steel and preparation method thereof | |
| CN104480386B (en) | 0.2mm-thick non-oriented silicon steel for high-speed motor and production method of 0.2mm-thick non-oriented silicon steel | |
| CN103834858A (en) | Method for manufacturing low-iron-loss non-oriented silicon steel | |
| CN111471941B (en) | High-strength non-oriented silicon steel with yield strength of 600MPa for new energy automobile driving motor rotor and manufacturing method thereof | |
| CN104404396B (en) | High-magnetic-strength no-orientation silicon steel free from normalizing and production method of sheet billets | |
| CN108220750A (en) | A kind of production method of the bright as silver bars of high carbon martensite Valve Steel 85Cr18Mo2V | |
| JP2012140676A (en) | Non-oriented electromagnetic steel sheet and method for producing the same | |
| CN102436895A (en) | Preparation method of iron-silicon-aluminum magnetic powder core | |
| CN111321344B (en) | High-strength cold-rolled non-oriented electrical steel for electric automobile driving motor and production method thereof | |
| CN102127702A (en) | Method for preparing low-S high-grade non-oriented electrical steel | |
| CN108396233A (en) | High-strength non-oriented silicon steel, and manufacturing method and application thereof | |
| CN103725995A (en) | Preparation method of oriented high silicon electrical steel | |
| CN105803324B (en) | A kind of yield strength 450MPa grades high magnetic strength low cost cold rolled magnetic pole steel and its manufacturing method | |
| CN111471927B (en) | High-magnetic-induction non-oriented silicon steel for automobile generator and preparation method thereof | |
| CN108504926B (en) | New-energy automobile non-oriented electrical steel and its production method | |
| CN105296849B (en) | A kind of large-scale generator rotor non-oriented electrical steel and production method | |
| CN101358272A (en) | Method for preparing high grade non-oriented electrical steel adding rare earth cerium | |
| CN102220466A (en) | Method for producing semi-processed cold-rolled non-oriented electrical steel | |
| JP2017040002A (en) | Nonoriented electrical steel sheet for high frequency and method for producing the same | |
| CN111440992B (en) | Low-anisotropy non-oriented silicon steel for hydroelectric power generation and production method thereof | |
| CN105132808B (en) | Method for preparing compound element processed non-oriented silicon steel for high-efficiency motor | |
| CN106282761B (en) | A kind of silicon steel, preparation method and application | |
| CN104294185B (en) | A kind of high-efficiency non-oriented electrical steel for motor and production method | |
| CN106191409B (en) | A kind of silicon steel for elevator electric machine rotor, preparation method and application | |
| KR20210125073A (en) | non-oriented electrical steel sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| OL01 | Intention to license declared | ||
| OL01 | Intention to license declared |