CN114959415A - 一种微合金化风电变速箱齿轮钢的制造方法 - Google Patents
一种微合金化风电变速箱齿轮钢的制造方法 Download PDFInfo
- Publication number
- CN114959415A CN114959415A CN202210495561.8A CN202210495561A CN114959415A CN 114959415 A CN114959415 A CN 114959415A CN 202210495561 A CN202210495561 A CN 202210495561A CN 114959415 A CN114959415 A CN 114959415A
- Authority
- CN
- China
- Prior art keywords
- percent
- equal
- less
- steel
- molten steel
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 title abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 238000003723 Smelting Methods 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 238000005242 forging Methods 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 238000007670 refining Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 7
- 238000009849 vacuum degassing Methods 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000005422 blasting Methods 0.000 claims abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 229910052718 tin Inorganic materials 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 31
- 238000009749 continuous casting Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 238000009489 vacuum treatment Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- 229910004709 CaSi Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005204 segregation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 2
- 238000007872 degassing Methods 0.000 claims description 2
- 238000004925 denaturation Methods 0.000 claims description 2
- 230000036425 denaturation Effects 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000003303 reheating Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229910052785 arsenic Inorganic materials 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000009628 steelmaking Methods 0.000 abstract description 3
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000011572 manganese Substances 0.000 description 15
- 239000011651 chromium Substances 0.000 description 13
- 239000000306 component Substances 0.000 description 11
- 239000010936 titanium Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 229910052720 vanadium Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000010587 phase diagram Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
本发明涉及一种微合金化风电变速箱齿轮钢的制造方法,流程为初炼—精炼—真空脱气—铸造—抛丸—加热—锻造—热处理。本申请采用热锻成型:将圆坯加热到1180‑1220℃,经若干道镦粗和拔长锻造成圆钢,镦粗和拔长交替进行,将圆钢中心冲孔,辗环后得到圆管。炼钢的化学成分按质量百分比计为C:0.15~0.21%,Si:0.15~0.35%,Mn:0.50~0.80%,Cr:1.50~1.80%,P≤0.025%,S:≤0.010%,Mo:0.25~0.35%,Ni:1.40~1.70%,Al:0.02~0.05%,Nb:0.01%~0.05%,Cu≤0.3%,Ca≤0.001%,Ti≤0.003%,O≤0.0015%,H≤0.00015%,N:0.005~0.018%,Al/N:2~6,Sn≤0.010%、Pb≤0.010%、Bi≤0.010%、As≤0.015%,且As+Sn+Pb+Bi+Sb≤0.035%,余量为Fe及不可避免的杂质。
Description
技术领域
本发明属于特种钢冶炼技术领域,具体涉及风电变速箱的齿轮用钢及制造方法。
背景技术
伴随着风电产业的快速发展,风电装备的质量提升和成本控制要求越来越高,风电机组的关键部件的高性价比要求也在不断提高,尤其对风电齿轮箱要求更加苛刻,因风电齿轮箱是风电机组中的核心部件,技术含量最高,失效也最频繁,目前模铸锻材17CrNiMo、18CrNiMo产品无法满足由于成分均匀性、夹杂物、晶粒度等问题,且生产成本很高,无法满足市场需求,因此开发一种优质的风电变速箱材料来满足市场需求迫在眉睫。
风电齿轮箱是风电机组中的核心部件,其主要功能是将风轮在风力作用下所产生的动能传递给发电机,是大扭矩低转速向小扭矩高转速转换的关键环节,在风电齿轮运转过程中齿轮始终处于高载荷变化及高速旋转的状态,齿轮与齿轮之间的啮合,容易产生疲劳破坏。因此要求所用的材料除了要满足机械强度条件外,还应满足齿面硬度高、心部韧性好的要求,故必经长时间高温表面渗碳处理,渗碳处理后晶粒处理后组织要细,渗碳层厚度合适、组织要均匀,且不能出现混晶,材料带状组织要尽量轻。对风电齿轮用钢的纯净度、窄淬透性带、高温晶粒度、低温冲击、偏析等都提出了严格的要求。
高端变速箱齿轮对纯净度、淬透性、带状组织、机械性能、高温晶粒度要求很严格,尤其是纯净度和高温晶粒度,钢中的非金属夹杂物破坏了金属的连续性和均匀性。根据齿轮在交变应力的作用下,夹杂物易于引起应力集中,成为疲劳裂纹源,降低齿轮的疲劳寿命。由于材料要求表面要有很高的耐磨性,芯部同时还要有很好的韧性,因此该材料通常采用高温渗碳处理,渗碳处理随着渗碳温度的不断提高渗碳时间越短,但同时随着温度提高晶粒长大的明显,造成严重混晶现象,严重影响齿轮的使用寿命。因此不仅需要钢水的高纯净度,同时在保证材料机械性能基础上要满足高温渗碳后晶粒度。
发明内容
为满足变速箱齿轮对钢材的强度、韧性、耐磨性、淬透性、冲击及高温晶粒度的要求,本发明通过对化学成分、锻造工艺及热处理进行合理设计,开发了一种新的微合金化风电变速箱齿轮用钢18CrNiMo7-6。
本发明所采用的技术方案为:一种微合金化风电变速箱齿轮钢的制造方法,包括:
步骤一、钢水冶炼:涉及初炼、精炼和真空脱气,钢水化学成分按质量百分比计为C:0.15~0.21%,Si:0.15~0.35%,Mn:0.50~0.80%,Cr:1.50~1.80%,P≤0.025%,S:≤0.010%,Mo:0.25~0.35%,Ni:1.40~1.70%,Al:0.02~0.05%,Nb:0.01%~0.05%,Cu≤0.3%,Ca≤0.001%,Ti≤0.003%,O≤0.0015%,H≤0.00015%,N:0.005~0.018%,Al/N:2~6,Sn≤0.010%、Pb≤0.010%、Bi≤0.010%、As≤0.015%,且As+Sn+Pb+Bi+Sb≤0.035%,余量为Fe及不可避免的杂质;
步骤二、浇铸:将步骤一的钢水浇铸成圆坯;
步骤三、热锻:将圆坯重新加热到1180-1220℃,元素固溶,组织完全均化,经若干道镦粗和拔长锻造成圆钢,镦粗和拔长交替进行,将圆钢中心冲孔,辗环后得到圆管,圆管空冷至300℃以下;
步骤四、正火:加热温度930-980℃,保温6小时以上,出炉空冷至室温;
步骤五、高温回火:回火温度630-680℃,出炉空冷至室温。
进一步地,步骤一,对初炼终点C和终点P的含量进行控制,终点C:0.06%-0.12%,终点P≤0.013%,初炼的出钢过程顺钢流加入铝铁提前脱氧。精炼前期利用气氛搅拌(如底吹氩气的方式)钢水促进夹杂物上浮被吸收,精炼过程禁止利用铝剂沉淀脱氧,可以在钢水上层的渣面加入Al粒和SiC进行扩散脱氧,保证过程氧含量低,发挥LF冶炼去除夹杂物的优势。真空脱气的真空度在133Pa以下,脱气时间15-35min,真空脱气后保证≥30min的软吹钢水,确保非金属夹杂物能够充分上浮。
进一步地,步骤一,真空处理后喂入CaSi线,对夹杂物进行变性处理,使高熔点的铝酸钙变性成低熔点的(CaO)12(Al2O3)7,促进夹杂物充分上浮至渣面,从而控制夹杂物数量和组成。
进一步地,步骤二,采用连铸工艺将钢水浇铸成圆坯,连铸过热度控制在10-35℃,在拉矫过程中避开800-900℃高温脆性区间,拉速控制在0.15-0.60m/min,连铸二冷区采用0.10-0.20L/kg的水量进行水雾冷却,保障连铸坯的芯部及表面质量。
进一步地,步骤二,连铸过程采用M-EMS和F-EMS双联和中间包感应加热方式以改善偏析。
进一步地,步骤二,对圆坯抛丸处理以发现坯料表面缺陷,并对缺陷进行修磨,避免有表面缺陷的坯料流到下道工序。
进一步地,步骤二,对圆坯进行去应力退火,平衡组织,为后面锻造做准备。
本发明变速箱齿轮钢的化学成分设计依据入如下:
1)C含量的确定
C是钢中最经济、最基本的强化元素,也是提高淬透性最有效的元素之一,通过固溶强化和析出强化可明显提高钢的强度,但C过高会对钢的韧性及冷脆性带来不利影响。本发明C含量的范围确定为0.15~0.21%,本发明涉及钢材属于低碳钢范畴;
2)Si含量的确定
Si脱氧能力较强,作为炼钢常用的脱氧剂,钢中加入Si,可以强化铁素体,提高强度、弹性极限和淬透性,但是Si促进回火脆性的发展,使塑性降低,同时对冲击韧性和韧性的温度有较大的影响。本发明Si含量的范围确定为0.15-0.35%。
3)Mn含量的确定
Mn作为炼钢过程的脱氧元素,能提高钢的淬透性,对提高低碳钢强度有显著的作用,Mn还能固定钢中的硫的形态并形成对钢的性能危害较小的MnS和(Fe,Mn)S,减少或抑制FeS的生产,因此钢中含有少量锰(Mn含量在0.10-0.80%),能提高钢的纯净度和性能。但钢中Mn含量过高,增强回火脆性,且易形成带状和纤维组织,增加钢的过热敏感性(粗晶),增强钢对白点的敏感性,对客户后续产品锻造、热处理产生严重的影响。此外,Mn含量高,增加钢的过热敏感性(粗晶),容易造成过热,对后续客户热处理造成严重的影响。目前国内外风电变速箱齿轮(如18CrNiMo、17CrNiMo),其Mn含量要求在0.70-0.90%,实际控制在0.80%左右,由于Mn含量偏高,客户在加热锻造时易产生开裂,既影响了客户使用,也降低了成品齿轮的使用寿命。为弥补上述产品的不足,钢中既要添加一定量的Mn元素,从而保留其提高钢材淬透性和纯净度等有利因素,同时Mn含量又不宜过高,尽可能降低其不利影响,本发明Mn含量的范围确定为0.50-0.80%。
4)Cr含量的确定
Cr是中等碳化物形成元素,在所有各种碳化物中,铬碳化物是最细小的一种,它可均匀地分布在钢体积中,所以具有高的强度、硬度、屈服点和高的耐磨性,由于它能使组织细化而又均分布,所以塑性、韧性也好。同时Cr的碳化物较难溶解,加热时有阻碍晶粒长大作用,可减小过热敏感效应。此外,Cr可使奥氏体分解速度减缓,降低淬火时的临界冷却速度,因而有助于马氏体形成和提高马氏体的稳定性,所以Cr钢均有优良的淬透性,且淬火变形较小。
但Cr含量过高,与钢中的碳结合,容易形成大块碳化物,这种难溶碳化物使钢的韧性降低,齿轮寿命下降,而且Cr含量过高,钢材的硬度过大,不利于客户加工使用。本发明考虑到钢中添加Cr元素能提高钢材的强度、淬透性和耐磨性等性能,从而提升成品齿轮的使用寿命,本发明将Cr含量的范围确定为1.50-1.80%。
5)Al含量的确定
Al作为钢中脱氧元素加入,除为了降低钢水中的溶解氧之外,Al与N形成弥散细小的氮化铝夹杂可以细化晶粒,提高低温下的韧性,降低钢的脆性转变温度,此外,Al与N形成的化合物,在高温条件下订轧晶界能够有效的阻止高温下晶粒长,但Al含量大,钢水熔炼过程中易形成Al2O3等脆性夹杂,降低钢水纯净度。考虑到本钢种在950度长时间高温渗碳容易造成混晶,因此要将Al含量控制在一定的范围,能够有效的与钢中的N元素结合,本发明Al含量的范围确定为0.02~0.05%,且AL/N比要控制在2~5之间。
6)Ca含量的确定
Ca含量会增加钢中大尺寸点状氧化物的数量和尺寸,同时由于点状氧化物硬度高,塑性差,在钢变形时其不变形,容易在交界面处形成空隙,使钢的性能变差。本发明Ca含量的范围确定为≤0.001%。
7)Ti含量的确定
Ti对齿轮危害方式是以氮化钛,碳氮化钛夹杂物的形式残留于钢中。这种夹杂物坚硬、呈棱角状,严重影响齿轮的疲劳寿命,特别是在纯洁度显著提高,其他氧化物夹杂数量很少的情况下,含钛夹杂物的危害尤为突出。含Ti夹杂物不仅降低齿轮的疲劳寿命,而且影响齿轮的粗糙度。本发明Ti含量的范围确定为≤0.003%。
8)O含量的确定
大量试验表明,氧含量的降低对提高齿轮疲劳寿命显著有利,由于该钢中为低碳钢,氧含量控制比较困难。本发明O含量的范围确定为≤0.0015%。
9)N含量的确定
N通常在钢中是一种有害元素,但在钢液中加入Al、V、Nb等微量元素后,微量元素起到氮固定在作用,形成AlN、VN、NbN等,起到订轧晶界作用,对后期渗碳高温晶粒度起到很好的作用,但N含量过高易与合金元素生成大块状氮化物非金属夹杂,更重要的是降低了合金元素的作用,因此本发明N含量控制范围0.005%-0.018%。
10)P、S含量的确定
P在钢中严重引起凝固时的偏析,P溶于铁素体使晶粒扭曲、粗大,且增加冷脆性。本发明P含量的范围确定为≤0.025%。S使钢产生热脆性,降低钢的延展性和韧性,本发明S含量的范围确定为≤0.010%。
11)Mo、Ni:本申请的钢种为低碳钢,加入Mo、Ni元素可以显著提高抗拉强度、屈服强度、冲击功,尤其是对产品的冲击韧性十分重要。
与现有技术相比,本发明的优点在于:
采用上述方法生产的18CrNiMo7-6钢种中非金属夹杂物及机械性能要求见下表1和表2:
表1
非金属夹杂物根据GB/T 10561 A法检验,各类夹杂物最大值不超过表1要求。
表2
机械性能大于或等于表2规定。
高温晶粒度:所生产的钢材经950℃保温80小时,然后降温至860℃保温2小时后油冷,奥氏体本质晶粒度在6级或以上,未出现粗于3级的晶粒。
附图说明
图1为本发明实施例1的齿轮钢高温晶相图;
图2为本发明实施例1的齿轮钢高温晶粒度检测图;
图3为本发明实施例2的齿轮钢高温晶相图;
图4为本发明实施例1的齿轮钢高温晶粒度检测图;
图5为本发明实施例3的齿轮钢高温晶相图;
图6为本发明实施例3的齿轮钢高温晶粒度检测图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施一
风电变速箱齿轮钢的制造方法,流程为转炉—LF炉外精炼—RH真空脱气—连铸—去应力退火—抛丸—精整—入库。冶炼时选用优质铁水和废钢,铁水经KR铁水预处理后倒入转炉,转炉终点C:0.09%,终点P:0.008%,出钢时加入Al铁进行脱氧。LF前期大搅拌促进夹杂物上浮被吸收,LF生产过程禁止加入Al铁进行脱氧,只允许在渣面加入Al粒和SiC进行扩散脱氧,保证过程氧含量低,发挥LF冶炼去除夹杂物的优势。RH高真空处理时间30min,真空处理后软吹时间28min。另外真空处理后按照30-80米每炉喂如CaSi线,对夹杂物进行变性处理,使高熔点的铝酸钙变性成低熔点的(CaO)12(Al2O3)7,促进夹杂物充分上浮至渣面,从而控制夹杂物数量和组成。连铸过热度25℃,经弧形连铸机制作截面尺寸Φ600mm的连铸坯,控制钢中夹杂物含量及尺寸和组成形态,连铸全程防氧化保护来减少钢中的夹杂物数量,另外选用优质耐材减少外来夹杂对钢水污染的控制技术,强化对生产过程的控制,拉速控制在0.15-0.35m/min,二冷水采用雾冷,冷却水按照0.10-0.20L/kg。所得连铸坯的化学成分按照质量百分比计包括:C:0.17%,Si:0.27%,Mn:0.67%,S≤0.006%,P≤0.013%,Cr:1.68%,Ni:1.56%,Mo:0.27%,Nb:0.025%,Al:0.032%,As:0.003%,V:0.002%,Ti:0.0012%,Cu:0.01%,Ca:≤0.0004%,N:0.0098%,余量为Fe及不可避免的杂质元素。
将铸坯加热到1180-1220℃,保温5小时以上,出炉进行锻造,经三镦两拔(镦粗—拔长—镦粗—拔长—镦粗)-中心冲孔-辗环后,空冷至300℃左右,加热温度930-980℃,保温6小时以上,出炉空冷至室温,入炉加热(高温回火,回火温度630-680℃),出炉空冷至室温,取样做机械性能和高温渗碳模拟实验,机械性能试样经830-850℃保温1.5小时淬火,油淬,淬火油温度不大于60℃,然后加热至180℃回火,保温5h后冷却,抗拉强度:1200-1300MPa,屈服强度:1050-1200MPa,延伸率:13.5%-15%,冲击功:80-100J,高温晶粒试样经950保温80小时后淬火,平均晶粒度达到8.0级(见图1、2)。
实施二
风电变速箱齿轮钢的制造方法,流程为转炉—LF炉外精炼—RH真空脱气—连铸—去应力退火—抛丸—精整—入库。冶炼时选用优质铁水和废钢,铁水经KR铁水预处理后倒入转炉,转炉终点C:0.010%,终点P:0.007%,出钢时加入Al铁进行脱氧。利用LF前期底吹氩气搅拌钢水促进夹杂物上浮被吸收,LF生产过程只允许在渣面加入Al粒和SiC进行扩散脱氧,保证过程氧含量低。RH高真空处理时间32min,真空处理后按照30-80米每炉喂如CaSi线,对夹杂物进行变性处理,真空处理后软吹时间30min。连铸过热度23℃,经弧形连铸机制作截面尺寸Φ500mm的连铸圆坯,连铸过程采用M-EMS和F-EMS双联和中间包感应加热技术,有效改善和降低连铸坯的成分偏析。拉速控制在0.15-0.40m/min,二冷水采用雾冷,冷却水按照0.10-0.20L/kg。所得连铸坯的化学成分按照质量百分比计包括:C:0.18%,Si:0.28%,Mn:0.65%,S≤0.005%,P≤0.013%,Cr:1.65%,Ni:1.57%,Mo:0.28%,Nb:0.03%,Al:0.031%,As:0.004%,V:0.004%,Ti:0.0010%,Cu:0.01%,Ca:≤0.0004%,N:0.0108%,余量为Fe及不可避免的杂质元素。
将铸坯加热到1180-1220℃,保温4小时以上,出炉进行锻造,经三镦两拔(镦粗—拔长—镦粗—拔长—镦粗)-中心冲孔-辗环后,空冷至320℃,入炉加热,加热温度930-980℃,保温5小时以上,出炉空冷至室温,入炉加热(高温回火,回火温度630-680℃),出炉空冷至室温,取样做机械性能和高温渗碳模拟实验,试样经830-850℃保温1.5小时淬火(油淬,淬火油温度不大于60℃),180℃回火5h,抗拉:1180-1270MPa,屈服:1030-1150MPa,延伸率:14.5%-17%,冲击功:70-110J,试样经950保温80小时后淬火,晶粒度达到8.5级(见图3、4)。
实施三
风电变速箱齿轮钢的制造方法,流程为转炉—LF炉外精炼—RH真空脱气—连铸—去应力退火—抛丸—精整—入库。冶炼时选用优质铁水和废钢,铁水经KR铁水预处理后倒入转炉,转炉终点C:0.08%,终点P:0.009%,出钢时加入Al铁进行脱氧。LF前期使用底吹氩气的方式搅拌钢水促进夹杂物上浮,精炼过程渣面加入Al粒和SiC进行扩散脱氧。RH高真空处理时间26min,真空处理后软吹时间32min,连铸过热度28℃,经弧形连铸机制作截面尺寸Φ390mm的连铸坯,拉速控制在0.2-0.60m/min,二冷水采用雾冷,冷却水按照0.10-0.20L/kg。所得连铸坯的化学成分按照质量百分比计包括:C:0.18%,Si:0.28%,Mn:0.65%,S≤0.005%,P≤0.013%,Cr:1.65%,Ni:1.57%,Mo:0.28%,Nb:0.03%,Al:0.031%,As:0.004%,V:0.004%,Ti:0.0010%,Cu:0.01%,Ca:≤0.0004%,N:0.0108%,余量为Fe及不可避免的杂质元素。
将铸坯加热到1180-1220℃,保温3.5小时以上,出炉进行锻造,经两镦两拔后(镦粗—拔长—镦粗—拔长),空冷至280℃,入炉加热,加热温度930-980℃,保温4小时以上,出炉空冷至室温,入炉加热(高温回火,回火温度630-680℃),出炉空冷至室温,,取样做机械性能和高温渗碳模拟实验,试样经830-850℃保温1.5小时淬火(油淬,淬火油温度不大于60℃),180℃回火5h,抗拉:1220-1330MPa,屈服:1070-1200MPa,延伸率:14%-16%,冲击功:70-100J,试样经950℃保温80小时后淬火,晶粒度达到8.0级(见图5、6)。
尽管以上详细地描述了本发明的优选实施例,但是应该清楚地理解,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (7)
1.一种微合金化风电变速箱齿轮钢的制造方法,其特征在于:包括
步骤一、钢水冶炼:涉及初炼、精炼和真空脱气,钢水化学成分按质量百分比计为C:0.15~0.21%,Si:0.15~0.35%,Mn:0.50~0.80%,Cr:1.50~1.80%,P≤0.025%,S:≤0.010%,Mo:0.25~0.35%,Ni:1.40~1.70%,Al:0.02~0.05%,Nb:0.01%~0.05%,Cu≤0.3%,Ca≤0.001%,Ti≤0.003%,O≤0.0015%,H≤0.00015%,N:0.005~0.018%,Al/N:2~6,Sn≤0.010%、Pb≤0.010%、Bi≤0.010%、As≤0.015%,且As+Sn+Pb+Bi+Sb≤0.035%,余量为Fe及不可避免的杂质;
步骤二、浇铸:将步骤一的钢水浇铸成圆坯;
步骤三、热锻:将圆坯重新加热到1180-1220℃,元素固溶,组织完全均化,经若干道镦粗和拔长锻造成圆钢,镦粗和拔长交替进行,将圆钢中心冲孔,辗环后得到圆管,圆管空冷至300℃以下;
步骤四、正火:加热温度930-980℃,保温6小时以上,出炉空冷至室温;
步骤五、高温回火:回火温度630-680℃,出炉空冷至室温。
2.根据权利要求1所述的方法,其特征在于:步骤一,对初炼终点C和终点P的含量进行控制,终点C:0.06%-0.12%,终点P≤0.013%,初炼的出钢过程顺钢流加入铝铁提前脱氧;
精炼前期利用气氛搅拌钢水促进夹杂物上浮被吸收,精炼过程禁止利用铝剂沉淀脱氧,可以在钢水上层的渣面加入Al粒和SiC进行扩散脱氧;
真空脱气的真空度在133Pa以下,脱气时间15-35min,真空脱气后保证≥30min的软吹钢水。
3.根据权利要求1所述的方法,其特征在于:步骤一,真空处理后喂入CaSi线,对夹杂物进行变性处理,使高熔点的铝酸钙变性成低熔点的(CaO)12(Al2O3)7,促进夹杂物充分上浮至渣面。
4.根据权利要求1所述的方法,其特征在于:步骤二,采用连铸工艺将钢水浇铸成圆坯,连铸过热度控制在10-35℃,在拉矫过程中避开800-900℃高温脆性区间,拉速控制在0.15-0.60m/min,连铸二冷区采用0.10-0.20L/kg的水量进行水雾冷却。
5.根据权利要求4所述的方法,其特征在于:步骤二,连铸过程采用M-EMS和F-EMS双联和中间包感应加热方式以改善偏析。
6.根据权利要求1所述的方法,其特征在于:步骤二,对圆坯抛丸处理以发现坯料表面缺陷,并对缺陷进行修磨。
7.根据权利要求1所述的方法,其特征在于:步骤二,对圆坯进行去应力退火。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210495561.8A CN114959415A (zh) | 2022-05-08 | 2022-05-08 | 一种微合金化风电变速箱齿轮钢的制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210495561.8A CN114959415A (zh) | 2022-05-08 | 2022-05-08 | 一种微合金化风电变速箱齿轮钢的制造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114959415A true CN114959415A (zh) | 2022-08-30 |
Family
ID=82981323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210495561.8A Pending CN114959415A (zh) | 2022-05-08 | 2022-05-08 | 一种微合金化风电变速箱齿轮钢的制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114959415A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116121629A (zh) * | 2022-12-19 | 2023-05-16 | 本钢板材股份有限公司 | 一种齿轮钢18CrNiMo7-6的制备方法 |
CN117778897A (zh) * | 2024-02-28 | 2024-03-29 | 江阴方圆环锻法兰有限公司 | 一种高晶粒度稳定性行星轮锻件的生产方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102424934A (zh) * | 2011-11-16 | 2012-04-25 | 东北特殊钢集团有限责任公司 | 18CrNiMo7-6大型齿轮钢锻件制造方法 |
CN103352173A (zh) * | 2013-06-30 | 2013-10-16 | 贵州安大航空锻造有限责任公司 | 18CrNiMo7-6合金钢锻件的预备热处理方法 |
CN103350202A (zh) * | 2013-07-12 | 2013-10-16 | 抚顺特殊钢股份有限公司 | SCr420HB高质量汽车齿轮钢制造方法 |
CN105567914A (zh) * | 2015-11-22 | 2016-05-11 | 天津华建天恒传动有限责任公司 | 一种新型锻后热处理工艺 |
CN105839015A (zh) * | 2016-05-17 | 2016-08-10 | 中天钢铁集团有限公司 | 一种Mn-Cr系高性能齿轮钢的生产方法 |
CN111636033A (zh) * | 2020-06-23 | 2020-09-08 | 张家港海锅新能源装备股份有限公司 | 风电装备齿轮用18CrNiMo7-6锻件的生产方法 |
CN113981322A (zh) * | 2021-10-29 | 2022-01-28 | 江苏联峰能源装备有限公司 | 一种低碳CrNiMo齿轮钢及其制备方法 |
CN113981321A (zh) * | 2021-10-29 | 2022-01-28 | 江苏联峰能源装备有限公司 | 一种低碳CrNiMo齿轮钢及其带状组织控制方法 |
CN114134430A (zh) * | 2021-04-19 | 2022-03-04 | 江阴兴澄特种钢铁有限公司 | 一种工程机械耐磨部件用高淬透性35SiMnCrMoB钢及其制造方法 |
-
2022
- 2022-05-08 CN CN202210495561.8A patent/CN114959415A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102424934A (zh) * | 2011-11-16 | 2012-04-25 | 东北特殊钢集团有限责任公司 | 18CrNiMo7-6大型齿轮钢锻件制造方法 |
CN103352173A (zh) * | 2013-06-30 | 2013-10-16 | 贵州安大航空锻造有限责任公司 | 18CrNiMo7-6合金钢锻件的预备热处理方法 |
CN103350202A (zh) * | 2013-07-12 | 2013-10-16 | 抚顺特殊钢股份有限公司 | SCr420HB高质量汽车齿轮钢制造方法 |
CN105567914A (zh) * | 2015-11-22 | 2016-05-11 | 天津华建天恒传动有限责任公司 | 一种新型锻后热处理工艺 |
CN105839015A (zh) * | 2016-05-17 | 2016-08-10 | 中天钢铁集团有限公司 | 一种Mn-Cr系高性能齿轮钢的生产方法 |
CN111636033A (zh) * | 2020-06-23 | 2020-09-08 | 张家港海锅新能源装备股份有限公司 | 风电装备齿轮用18CrNiMo7-6锻件的生产方法 |
CN114134430A (zh) * | 2021-04-19 | 2022-03-04 | 江阴兴澄特种钢铁有限公司 | 一种工程机械耐磨部件用高淬透性35SiMnCrMoB钢及其制造方法 |
CN113981322A (zh) * | 2021-10-29 | 2022-01-28 | 江苏联峰能源装备有限公司 | 一种低碳CrNiMo齿轮钢及其制备方法 |
CN113981321A (zh) * | 2021-10-29 | 2022-01-28 | 江苏联峰能源装备有限公司 | 一种低碳CrNiMo齿轮钢及其带状组织控制方法 |
Non-Patent Citations (1)
Title |
---|
钢铁工业节能减排新技术5000问编委会, 北京:中国科学技术出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116121629A (zh) * | 2022-12-19 | 2023-05-16 | 本钢板材股份有限公司 | 一种齿轮钢18CrNiMo7-6的制备方法 |
CN117778897A (zh) * | 2024-02-28 | 2024-03-29 | 江阴方圆环锻法兰有限公司 | 一种高晶粒度稳定性行星轮锻件的生产方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109338035B (zh) | 一种风力发电机齿轮箱轴承用钢及其生产方法 | |
CN109252097B (zh) | 一种高强度胀断连杆的非调质钢及其连铸生产工艺 | |
CN102703817B (zh) | 一种易切削齿轮钢及其生产工艺 | |
CN111394639B (zh) | 一种高耐磨齿轮钢的制造方法 | |
CN112899560B (zh) | 一种高强度齿轮用钢23CrMnMoS及其制造方法 | |
CN114959415A (zh) | 一种微合金化风电变速箱齿轮钢的制造方法 | |
WO2022022066A1 (zh) | 一种极地海洋工程用钢板及其制备方法 | |
CN109763071B (zh) | 一种高磁性能汽车电机爪极用钢及其生产方法 | |
CN112981237A (zh) | 一种球笼式万向节保持架用钢及其生产方法 | |
CN111155022B (zh) | 一种具有低温韧性的390MPa级极地船体结构钢及其制备方法 | |
CN109161650B (zh) | 一种低合金铸钢、制造方法及其应用 | |
CN112143970B (zh) | 高强高韧非调质前轴用钢及其生产方法 | |
CN114134398A (zh) | 一种屈强比为0.70-0.80的胀断连杆钢及制造方法 | |
CN109930064B (zh) | 一种耐腐蚀高压锅炉管用耐热钢及其生产方法 | |
CN109097665B (zh) | 高强度耐大气腐蚀螺栓用钢的冶炼方法 | |
CN115094307B (zh) | 一种电渣重熔用热作模具钢连铸圆坯及其生产工艺 | |
CN108315645B (zh) | 一种耐磨钢及其生产工艺 | |
CN110172638A (zh) | 一种高温渗碳齿轮钢及生产方法 | |
CN113151744B (zh) | 一种工程机械回转支承用钢s48c及其生产方法 | |
CN115029631A (zh) | 一种高强度、高韧性风电变速箱齿轮用钢及其制造方法 | |
CN109930063A (zh) | 一种工程机械履带底盘轮体用钢及其生产方法 | |
CN109778073B (zh) | 一种易切削汽车同步器用钢及其制备方法 | |
CN113106334A (zh) | 一种rv减速器摆线轮用钢及其制备方法 | |
CN115537678B (zh) | 一种高温渗碳齿轮用钢及其制造方法 | |
CN115584435B (zh) | 一种用于重型十字轴冷挤成型的高强度钢及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220830 |
|
RJ01 | Rejection of invention patent application after publication |