CN107201482B - A kind of wind-powered electricity generation pinion steel and preparation method thereof - Google Patents
A kind of wind-powered electricity generation pinion steel and preparation method thereof Download PDFInfo
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- CN107201482B CN107201482B CN201710255727.8A CN201710255727A CN107201482B CN 107201482 B CN107201482 B CN 107201482B CN 201710255727 A CN201710255727 A CN 201710255727A CN 107201482 B CN107201482 B CN 107201482B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 230000005611 electricity Effects 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000720 Silicomanganese Inorganic materials 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- -1 compound rare-earth Chemical class 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 239000011651 chromium Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 4
- 229910052735 hafnium Inorganic materials 0.000 abstract description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010936 titanium Substances 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052721 tungsten Inorganic materials 0.000 abstract description 2
- 239000010937 tungsten Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000009628 steelmaking 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of wind-powered electricity generation pinion steels, its chemical component mass percent are as follows: C0.12-0.20%, Mn2.6-3.8%, Si0.26-0.35%, Ni0.44-0.56%, Mo1.4-2.5%, Cr1.2-2.0%, Ti0.005-0.010%, W0.33-0.46%, Hf0.15-0.23%, P≤0.030%, S≤0.030%, surplus are Fe and inevitable impurity.Pinion steel inclusion behavior of the invention is low, gas content is low, crystal grain is tiny, dense structure, by reducing a certain proportion of phosphorus content, improve the welding performance of pinion steel, the addition of the elements such as chromium and titanium ensure that the physical properties such as the hardness of wind power gear steel, tungsten and hafnium cooperation, so that pinion steel has very excellent corrosion resistance and heat-resisting quantity, the addition of hafnium element additionally aids refinement crystal grain.
Description
Technical field
The present invention relates to metallurgy industry steelmaking technical fields more particularly to a kind of wind-powered electricity generation pinion steel and preparation method thereof.
Background technique
Pinion steel is the general designation to the steel that can be used for fabricating gear.Pinion steel is automobile, railway, ship, engineering
It is the manufacture material for guaranteeing the core component of safety using one of critical material more demanding in special alloy steel in machinery.
Wind-powered electricity generation is had to that good performance can be kept under lower temperature environments with pinion steel.The excessive note of existing wind-powered electricity generation pinion steel
The low-temperature adaptation ability and intensity of weight pinion steel, and then more Mn, Cr etc. are added, as the additive amount of Mn, Cr etc. improve, tooth
Welding performance, corrosion resistance and the toughness of wheel steel can all have a degree of decline, be unfavorable for making for a long time for wind power gear steel
With.How to prepare that a kind of lower temperature resistance is good, hardness is high, the wind power gear steel of excellent combination property is skill to be solved by this invention
Art problem.
Summary of the invention
That in view of the deficiencies of the prior art, the present invention provides a kind of lower temperature resistances is good, hardness is high, the wind-powered electricity generation of excellent combination property
With pinion steel and preparation method thereof.
The present invention is realized by following technological means solves above-mentioned technical problem:
A kind of wind-powered electricity generation pinion steel, chemical component mass percent are as follows: C0.12-0.20%, Mn2.6-3.8%,
Si0.26-0.35%、Ni0.44-0.56%、Mo1.4-2.5%、Cr1.2-2.0%、Ti0.005-0.010%、W0.33-0.46%、
Hf0.15-0.23%, P≤0.030%, S≤0.030%, surplus are Fe and inevitable impurity.
A kind of preparation method of wind-powered electricity generation pinion steel, comprising the following steps:
(1) electric furnace or converter smelting are adjusted the content of each element in molten steel, no slag or few slag tapping, are carried out using silicomanganese
Pre-deoxidation；
(2) LF refining is carried out using refining rapid slagging slag making technology, Refining Clean Steel in ASEA-SKF technology, by using smart outside furnace
Gas content meets the requirements in refining, Fruit storage to chemical component and steel, and hydrogen content≤2.5ppm, oxygen content in steel≤
20ppm carries out complex deoxidization using compound rare-earth and Ti cooperation；
(3) it is handled by RH or VD vacuum argon blowing degassing method, the vacuum degree≤0.10KPa, retention time 12- of VD degassing
16min, vacuum breaker are kept stirring state, finely tune, and feed S line, finely tune other ingredients, be casting continuously to form base；
(4) it rolls, continuous casting billet is 1150-1250 DEG C in the heating temperature of heating furnace, 1100 DEG C of start rolling temperature, is heated and high
Warm diffusion time is 2-3 hours, 860-960 DEG C of finishing temperature, rolls rear air-cooled or slow cooling.
The present invention has the advantages that pinion steel inclusion behavior of the invention is low, gas content is low, and crystal grain is tiny, tissue
Densification improves the welding performance of pinion steel, the addition of the elements such as chromium and titanium guarantees by reducing a certain proportion of phosphorus content
The physical properties such as the hardness of wind power gear steel, tungsten and hafnium cooperation, so that pinion steel has very excellent corrosion resistance and resistance to
High temperatures, the addition of hafnium element additionally aids refinement crystal grain.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of wind-powered electricity generation pinion steel, chemical component mass percent are as follows: C0.16%, Mn3.2%, Si0.31%,
Ni0.48%, Mo1.9%, Cr1.6%, Ti0.008%, W0.40%, Hf0.19%, P≤0.030%, S≤0.030%, surplus be Fe and
Inevitable impurity, includes P≤0.04% in inevitable impurity, S≤0.04%, N≤0.04%, and oxygen O≤
0.05%.
A kind of preparation method of wind-powered electricity generation pinion steel, comprising the following steps:
(1) electric furnace or converter smelting are adjusted the content of each element in molten steel, no slag or few slag tapping, are carried out using silicomanganese
Pre-deoxidation；
(2) LF refining is carried out using refining rapid slagging slag making technology, Refining Clean Steel in ASEA-SKF technology, by using smart outside furnace
Gas content meets the requirements in refining, Fruit storage to chemical component and steel, and hydrogen content≤2.5ppm, oxygen content in steel≤
20ppm carries out complex deoxidization using compound rare-earth and Ti cooperation；
(3) it is handled by RH or VD vacuum argon blowing degassing method, the vacuum degree≤0.10KPa, retention time 12- of VD degassing
16min, vacuum breaker are kept stirring state, finely tune, and feed S line, finely tune other ingredients, be casting continuously to form base；
(4) it rolls, continuous casting billet is 1200 DEG C in the heating temperature of heating furnace, and 1100 DEG C of start rolling temperature, heating and high temperature expand
Dissipating the time is 3 hours, 920 DEG C of finishing temperature, rolls rear air-cooled or slow cooling.
The mechanical and physical performance of wind-powered electricity generation pinion steel made from the present embodiment is as shown in the table.
| Tensile strength (MPa) | Yield strength (MPa) | Impact flexibility (J) | Fracture toughness (MPa M1/2) | Elongation at break (%) | Hardness (HRC) | Corrosion rate under 3.5%NaCl solution environmental (mm/) | 5%H2SO4Corrosion rate under solution environmental (mm/) | - 60 DEG C of punchings Hit function |
| 1150 | 918 | 240 | 138 | 34 | 49 | 0.0124 | 0.0379 | 227 |
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (1)
1. a kind of wind-powered electricity generation pinion steel, which is characterized in that its chemical component mass percent are as follows: C0.12-0.20%, Mn2.6-
3.8%, Si0.26-0.35%, Ni0.44-0.56%, Mo1.4-2.5%, Cr1.2-2.0%, Ti0.005-0.010%,
W0.33-0.46%, Hf0.15-0.23%, P≤0.030%, S≤0.030%, surplus are Fe and inevitable impurity；
The preparation method of the wind-powered electricity generation pinion steel the following steps are included:
(1) electric furnace or converter smelting are adjusted the content of each element in molten steel, no slag or few slag tapping, are carried out using silicomanganese pre- de-
Oxygen；
(2) LF refining is carried out using refining rapid slagging slag making technology, Refining Clean Steel in ASEA-SKF technology, by using external refining, very
Empty degassing process gas content into chemical component and steel meets the requirements, hydrogen content≤2.5ppm, oxygen content≤20ppm in steel,
Complex deoxidization is carried out using compound rare-earth and Ti cooperation；
(3) it is handled by RH or VD vacuum argon blowing degassing method, vacuum degree≤0.10KPa, the retention time 12-16min of VD degassing,
Vacuum breaker is kept stirring state, finely tunes, and feeds S line, finely tunes other ingredients, be casting continuously to form base；
(4) it rolls, continuous casting billet is 1150-1250 DEG C in the heating temperature of heating furnace, and 1100 DEG C of start rolling temperature, heating and high temperature expand
Dissipating the time is 2-3 hours, 860-960 DEG C of finishing temperature, rolls rear air-cooled or slow cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255727.8A CN107201482B (en) | 2017-04-19 | 2017-04-19 | A kind of wind-powered electricity generation pinion steel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255727.8A CN107201482B (en) | 2017-04-19 | 2017-04-19 | A kind of wind-powered electricity generation pinion steel and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107201482A CN107201482A (en) | 2017-09-26 |
| CN107201482B true CN107201482B (en) | 2019-01-25 |
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| CN114855073A (en) * | 2022-04-08 | 2022-08-05 | 张家港广大特材股份有限公司 | High-quality die-cast wind power gear steel and preparation method thereof |
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| KR20150121155A (en) * | 2013-03-01 | 2015-10-28 | 로발마, 에쎄.아 | High thermal diffusivity, high toughness and low crack risk during heat treatment tool steel |
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| JP3996824B2 (en) * | 2002-09-12 | 2007-10-24 | 新日本製鐵株式会社 | Steel for liquid phase diffusion bonding with excellent low temperature transformation cracking resistance |
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| CN107201482A (en) | 2017-09-26 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Gear steel for wind power and preparing method of gear steel Effective date of registration: 20200326 Granted publication date: 20190125 Pledgee: Jiangsu Jiangyin Rural Commercial Bank branch Dangtu Limited by Share Ltd. Pledgor: MAANSHAN XINLONG SPECIAL STEEL Co.,Ltd. Registration number: Y2020980001043 |
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Denomination of invention: A kind of gear steel for wind power and preparation method thereof Effective date of registration: 20220801 Granted publication date: 20190125 Pledgee: Jiangsu Jiangyin Rural Commercial Bank branch Dangtu Limited by Share Ltd. Pledgor: MAANSHAN XINLONG SPECIAL STEEL Co.,Ltd. Registration number: Y2022980011677 |
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