CN106191409B - A kind of silicon steel for elevator electric machine rotor, preparation method and application - Google Patents
A kind of silicon steel for elevator electric machine rotor, preparation method and application Download PDFInfo
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- CN106191409B CN106191409B CN201610630622.1A CN201610630622A CN106191409B CN 106191409 B CN106191409 B CN 106191409B CN 201610630622 A CN201610630622 A CN 201610630622A CN 106191409 B CN106191409 B CN 106191409B
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 130
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 20
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 19
- 229910052796 boron Inorganic materials 0.000 claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 238000013000 roll bending Methods 0.000 claims description 28
- 238000000137 annealing Methods 0.000 claims description 25
- 238000005098 hot rolling Methods 0.000 claims description 25
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 238000005554 pickling Methods 0.000 claims description 16
- 229910052748 manganese Inorganic materials 0.000 claims description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 229910052729 chemical element Inorganic materials 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 238000005097 cold rolling Methods 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000003763 carbonization Methods 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 18
- 239000010936 titanium Substances 0.000 abstract description 18
- 239000011651 chromium Substances 0.000 abstract description 17
- 239000000203 mixture Substances 0.000 abstract description 8
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005242 forging Methods 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 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 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 22
- 239000011572 manganese Substances 0.000 description 14
- 238000005266 casting Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 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
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 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
- 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
- C21D8/1216—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
- C21D8/1233—Cold 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
- 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
- C21D8/1255—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 with diffusion of elements, e.g. decarburising, nitriding
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The present invention provides a kind of silicon steel for elevator electric machine rotor, preparation method and application.In the present invention, pass through the selection and adjustment to added microelement in the silicon steel, the content for regulating and controlling the microelements such as added manganese, chromium, boron, titanium, vanadium simultaneously, so that silicon steel of the present invention is while with good electromagnetic performance, additionally it is possible to have good mechanical performance.Meanwhile in the method for the present invention, there is the steel billet of element of the present invention composition, then silicon steel of the present invention is prepared by the billet rolling by forging, have many advantages, such as preparation method simplicity, obtained silicon steel electromagnetic performance and good mechanical property.Further, since 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 elevator electric machine rotor all having higher requirements to material electromagnetic performance and mechanical performance.
Description
Technical field
The present invention relates to silicon steel fields, in particular to a kind of silicon steel for elevator electric machine rotor, preparation method
And application.
Background technique
Silicon steel refers to that silicon content is 0.5% to 4.5% extremely low carbon duriron alloy, is divided because of 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.
Lift motor is mainly made of stator and rotor, and stator is stationary part, and rotor is rotating part,
There is certain air gap between stator and rotor.Rotor is made of iron core and winding, and rotor core is fitted in shaft, by silicon steel
Piece is overrided to form.
Existing silicon steel sheet is all selection of chemical composition and composition using electromagnetic performance as main performance index, and with
Guarantee based on electromagnetic performance, the attributes such as iron loss and intensity to silicon steel sheet have it is certain ignore, and this also results in silicon steel
The mechanical performance of piece is poor, and intensity is lower and service life is shorter.
Therefore, a kind of silicon steel with good mechanical properties and electromagnetic performance is developed, just at current urgently to be resolved
Technical problem.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of silicon steel for elevator electric machine rotor, by the silicon steel
The selection and adjustment of added microelement, while regulating and controlling the content of the microelements such as added manganese, chromium, boron, titanium, vanadium, thus
So that silicon steel of the present invention is while with good electromagnetic performance, additionally it is possible to there is good mechanical performance, and then solve
Prior art silicon steel mechanical strength is low, is unable to satisfy Elevator power generation machine rotor and the technical problems such as uses.
The second object of the present invention is to provide the preparation method of silicon steel described in one kind, in the method for the present invention, passes through forging
The steel billet with element of the present invention composition 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 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 the elevator all having higher requirements to material electromagnetic performance and mechanical performance
In the devices such as motor rotor.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of silicon steel for elevator electric machine rotor, the mass percent of chemical element contained by the silicon steel are as follows: Si
3.5~4.0%, C 0.05~4.0%, 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%, Ti 0.01~0.05%, V 0.02~0.04%, surplus is Fe and other can not
The impurity avoided.
In the present invention, carried out by adulterating the elements such as Mn, Cr, B, P, Ti, V into the silicon steel, and to each element content
Further selection, so that silicon steel of the present invention is while with good electromagnetic performance, additionally it is possible to have good machine
Tool performance.
Specifically, carbon can increase the intensity and wearability of silicon steel, however carbon also can in silicon steel of the present invention
Increase the loss of magnetic core.It is, therefore, necessary to the dosage to carbon regulates and controls, thus while improving silicon steel intensity, 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 be improved 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 be improved the magnetism of silicon steel；In silicon steel of the present invention, titanium member
The use of element can be improved the hardness, corrosion resistance and intensity of silicon steel plate；In silicon steel of the present invention, vanadium can be improved silicon steel plate
Tensile strength and yield strength.Further, each element content must also control in a certain range in silicon steel of the present invention,
Good effect can be played, otherwise also due to the interaction between element is not so that silicon steel is able to satisfy the magnetic of normal use
The requirement of property and/or mechanical performance.
Optionally, in the present invention, the mass percent of chemical element contained by the silicon steel are as follows: 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%, Ti 0.02~0.03%, V 0.03~0.04%, surplus are Fe and other inevitable impurity.
In the present invention, by the further adjustment and optimization to each element content in silicon steel, to advanced optimize this
The performance of invention silicon steel.
Optionally, in the present invention, the mass percent of chemical element contained by the silicon steel are as follows: Si 3.7%, C 1.5%, P
0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, Ti 0.03%, V0.03%, surplus are Fe and other
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) plate obtained by 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, there is the steel billet of element of the present invention composition by forging, then this hair is prepared by the billet rolling
Bright silicon steel has many advantages, such as preparation method simplicity, obtained silicon steel electromagnetic performance and good mechanical property.
In the present invention, described smelt obtains the silicon steel steel with chemical composition of the present invention to smelt using vacuum smelting furnace
Base.
Optionally, in the present invention, the temperature of hot rolling described in step (2) is 1300~1400 DEG C；Preferably, of the invention
In, the temperature of hot rolling described in step (2) is 1350~1380 DEG C, such as can be, but be not limited to 1360 DEG C or 1370 DEG C
Deng.
In the present invention, the hot rolling is by billet rolling into the plate with a thickness of 2~3mm.
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.
Optionally, in the present invention, the temperature batched described in step (3) is 450~550 DEG C, such as can be, but unlimited
In 460 DEG C, 470 DEG C, 480 DEG C, 490 DEG C, 500 DEG C, 510 DEG C, 520 DEG C, 530 DEG C or 540 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 makes microcosmic composition and crystal habit in each section of roll bending more uniform.
Optionally, the present invention in, pickling described in step (4) be by the roll bending after normalizing with concentration be 15% hydrochloric acid it is molten
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, thus that can 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, cold rolling described in step (5) be roll bending after pickling is rolling to a thickness of 0.20~
0.25mm。
Specifically, steps are as follows for the preparation method of silicon steel of the present invention:
(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 1300~1400 DEG C, and the plate with a thickness of 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 1300
~1400 DEG C；
(3) gained plate after hot rolling is batched under the conditions of 450~550 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 plate with a thickness of 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 present invention also provides silicon steel of the present invention to prepare the application in elevator electric machine rotor.
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.
Further, the present invention also provides the silicon steel to prepare the application in elevator electric machine rotor.
Compared with prior art, the invention has the benefit that
(1) in the present invention, by adulterating the elements such as Mn, Cr, B, P, Ti and V into the silicon steel, and each element is contained
Amount is further selected, 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, the good, silicon steel in homogeneous thickness so as to obtained surface quality.
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 carries out according to conventional conditions or manufacturer's recommended conditions.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 of contained chemical element is made are as follows: Si 3.5%, C
0.05%, P 0.16%, S 0.04%, Mn 0.60%, Cr 0.08%, B 0.01%, Ti 0.01%, V 0.01%, surplus
For Fe and other inevitable impurity silicon steel steel billets；
(2) by steel billet hot rolling under the conditions of 1350~1380 DEG C, the silicon steel plate with a thickness of 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 1350
~1380 DEG C；
(3) gained plate after hot rolling is batched under the conditions of 450 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 the hydrochloric acid solution that concentration is 15% removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plate with a thickness of 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 of contained chemical element is made are as follows: Si 3.6%, C
0.80%, P 0.17%, S 0.05%, Mn 0.63%, Cr 0.09%, B 0.06%, Ti 0.03%, V 0.03%, surplus
For Fe and other inevitable impurity silicon steel steel billets；
(2) by steel billet hot rolling under the conditions of 1350~1380 DEG C, the silicon steel plate with a thickness of 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 1350
~1380 DEG C；
(3) gained plate after hot rolling is batched under the conditions of 550 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 the hydrochloric acid solution that concentration is 15% removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plate with a thickness of 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 of contained chemical element is made are as follows: Si 3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, Ti 0.03%, V 0.03%, surplus
For Fe and other inevitable impurity silicon steel steel billets；
(2) by steel billet hot rolling under the conditions of 1350~1380 DEG C, the silicon steel plate with a thickness of 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 1350
~1380 DEG C；
(3) gained plate after hot rolling is batched under the conditions of 500 DEG C；
(4) gained roll bending normalizing annealing 1.5h under the conditions of 1200 DEG C after batching, then by the roll bending after normalizing annealing
15min, which is impregnated, with the hydrochloric acid solution that concentration is 15% removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plate with a thickness of 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 of contained chemical element is made are as follows: Si 4.00%,
C 4.00%, P 0.19%, S 0.06%, Mn 0.70%, Cr 0.10%, B 0.10%, Ti 0.05%, V 0.04%, it is remaining
Amount is Fe and other inevitable impurity silicon steel steel billets；
(2) by steel billet hot rolling under the conditions of 1350~1380 DEG C, the silicon steel plate with a thickness of 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 1350
~1380 DEG C；
(3) gained plate after hot rolling is batched under the conditions of 500 DEG C；
(4) gained roll bending normalizing annealing 2h under the conditions of 1200 DEG C after batching, then uses the roll bending after normalizing annealing
The hydrochloric acid solution that concentration is 15% impregnates 15min and removes roll bending scale on surface；
(5) roll bending after pickling is subjected to cold rolling, and obtains the plate with a thickness of 0.25mm；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
It is random respectively to choose 5 parts of experimental materials from the silicon steel of embodiment 1-4, 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), as a result as follows:
It is random respectively to choose 5 parts of experimental materials meanwhile from the silicon steel of embodiment 1-4, carry out magnetic strength B8 and iron loss
P17/50Test, and record, the magnetic strength and iron loss average value of each group silicon steel are then calculated, 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 elevator electric machine rotor, and is tested under normal usage, test
The result shows that motor rotor prepared by embodiment 1-4 silicon steel under conditions of operating is more than 20000h, still is able to normal
Work.
Comparative example 1
Using the method for vacuum metling and casting, the mass percent of contained chemical element is made are as follows: Si3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, surplus is Fe and other are inevitable
Impurity silicon steel steel billet；
Then silicon steel is prepared to get the silicon steel of comparative example 1 according to 3 the method for embodiment.
For the silicon steel of comparative example 1 compared with 3 silicon steel of embodiment, difference is in the silicon steel of comparative example 1 not titaniferous, vanadium.
Comparative example 2
Using the method for vacuum metling and casting, the mass percent of contained chemical element is made are as follows: Si 3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, Ti 0.03%, surplus are Fe and its
His inevitable impurity silicon steel steel billet；
Then silicon steel is prepared to get the silicon steel of comparative example 2 according to 3 the method for embodiment.
Compared with 3 silicon steel of embodiment, difference is in the silicon steel of comparative example 1 without vanadium the silicon steel of comparative example 1.
Comparative example 3
Using the method for vacuum metling and casting, the mass percent of contained chemical element is made are as follows: Si3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, V 0.03%, surplus are Fe and other
Inevitable impurity silicon steel steel billet；
Then silicon steel is prepared to get the silicon steel of comparative example 3 according to 3 the method for embodiment.
For the silicon steel of comparative example 1 compared with 3 silicon steel of embodiment, difference is in the silicon steel of comparative example 1 not titaniferous.
Comparative example 4
Using the method for vacuum metling and casting, the mass percent of contained chemical element is made are as follows: Si3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, Ti 0.04%, V 0.05%, surplus
For Fe and other inevitable impurity silicon steel steel billets；
Then silicon steel is prepared to get the silicon steel of comparative example 4 according to 3 the method for embodiment.
The silicon steel of comparative example 4 is compared with 3 silicon steel of embodiment, and difference is that element titanium, the content of vanadium are different, and comparative example 4
Silicon steel in vanadium content be higher than the application numberical range.
Comparative example 5
Using the method for vacuum metling and casting, the mass percent of contained chemical element is made are as follows: Si3.7%, C
1.50%, P 0.18%, S 0.05%, Mn 0.65%, Cr 0.09%, B 0.07%, Ti 0.06%, V 0.04%, surplus
For Fe and other inevitable impurity silicon steel steel billets；
Then silicon steel is prepared to get the silicon steel of comparative example 5 according to 3 the method for embodiment.
The silicon steel of comparative example 5 is compared with 3 silicon steel of embodiment, and difference is that element titanium, the content of vanadium are different, and comparative example 4
Silicon steel in titanium content be higher than the application numberical range.
Experimental example 2
It is random respectively to choose 5 parts of experimental materials from the silicon steel of comparative example 1-5, 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), as a result as follows:
It is random respectively to choose 5 parts of experimental materials meanwhile from the silicon steel of comparative example 1-5, carry out magnetic strength B8 and iron loss
P17/50Test, and record, the magnetic strength and iron loss average value of each group silicon steel are then calculated, as a result as follows:
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where 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 (8)
1. a kind of silicon steel is preparing the application in elevator electric machine rotor；
Wherein, the mass percent of chemical element contained by the silicon steel are as follows: 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%, Ti
0.02~0.03%, V 0.03~0.04%, surplus are Fe and other inevitable impurity.
2. application according to claim 1, which is characterized in that the preparation method for stating silicon steel includes the following steps:
(1) steel billet is made after smelting and cast；
(2) by hot rolling of steel billet；
(3) plate obtained by 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.
3. application according to claim 2, which is characterized in that the temperature of hot rolling described in step (2) is 1300~1400
℃。
4. application according to claim 2, which is characterized in that the temperature batched described in step (3) is 450~550 DEG C.
5. application according to claim 2, which is characterized in that the temperature of normalizing annealing described in step (4) be 1200~
1300 DEG C, the time of normalizing annealing is 0.5~2.5h.
6. application according to claim 2, which is characterized in that pickling described in step (4) is to use the roll bending after normalizing
The hydrochloric acid solution that concentration is 15% impregnates 5~15min and removes removing iron scale.
7. application according to claim 2, which is characterized in that cold rolling described in step (5) is to roll roll bending after pickling
To with a thickness of 0.20~0.25mm.
8. application according to claim 2, which is characterized in that the temperature of high annealing described in step (5) be 800~
1200℃。
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