CN113201739A - 一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 - Google Patents
一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 Download PDFInfo
- Publication number
- CN113201739A CN113201739A CN202110510693.9A CN202110510693A CN113201739A CN 113201739 A CN113201739 A CN 113201739A CN 202110510693 A CN202110510693 A CN 202110510693A CN 113201739 A CN113201739 A CN 113201739A
- Authority
- CN
- China
- Prior art keywords
- 30crni3a
- structural steel
- temperature
- heat treatment
- steel part
- 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
- 229910000746 Structural steel Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 238000005496 tempering Methods 0.000 claims abstract description 22
- 238000005256 carbonitriding Methods 0.000 claims abstract description 15
- 238000010791 quenching Methods 0.000 claims abstract description 15
- 230000000171 quenching effect Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 10
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- 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
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
-
- 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
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/06—Extraction of hydrogen
-
- 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
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
- C23C8/30—Carbo-nitriding
- C23C8/32—Carbo-nitriding of ferrous surfaces
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
本发明涉及一种航空发动机传动用30CrNi3A结构钢制件热处理工艺,包括如下步骤,首先将30CrNi3A结构钢制件在820℃‑860℃进行碳氮共渗,然后在230~240℃热油中等温淬火并保温50‑90分钟,然后依次进行冰冷、一次低温回火、二次低温回火,获得表面组织为高碳马氏体+少量残余奥氏体、心部组织为低碳马氏体的30CrNi3A结构钢制件;本发明热处理工艺在传统的热处理工艺基础上进行改进,通过碳氮共渗提高制件的耐磨性能和抗疲劳强度,制件淬火冷却时由直接淬火改为等温淬火的方式,通过调整等温淬火的温度,从而满足不同要求的综合性能。此种方案可有效改善结构钢综合性能,提高制件的安全性和可靠性。
Description
技术领域
本发明涉及航空发动机零部件热处理技术领域,特别是一种航空发动机传动用30CrNi3A结构钢制件热处理工艺。
背景技术
结构钢因其经济性和良好的综合力学性能而广泛用于承载制件。作为传动制件,不仅要传动扭矩而且需承受较大的载荷和疲劳强度。传动的热处理工艺不能同时满足“外硬里韧”的性能要求。若综合性能不能满足使用要求,在服役过程中会发生失效,甚至造成整机损伤或破坏。
某型航空发动机用30CrNi3A中碳低合金结构钢,生产传动制件。该制件特点为承受载荷大、转速快,零件两端带有花键。为提高制件的耐磨性能和疲劳强度需对花键表面进行碳氮共渗处理。要求渗层表面硬度≥90HR15N,心部硬度46~50HRC,抗拉强度不小于1568MPa。
采用传统热处理工艺,即碳氮共渗后直接淬火,工件经常出现心部硬度偏高,韧性值偏低,不能满足性能要求。若抬高回火温度,表面渗层硬度则会下降,低于设计要求值。因此,须采取适当的热处理工艺,使制件获得良好的综合性能,满足“外硬里韧”的使用要求。
发明内容
本发明要解决的技术问题是提供一种减少制件变形的航空发动机传动用30CrNi3A结构钢制件热处理工艺。
为解决上述技术问题,本发明提供的航空发动机传动用30CrNi3A结构钢制件热处理工艺,包括如下步骤:首先将30CrNi3A结构钢制件在820℃-860℃进行碳氮共渗,然后在230~240℃热油中等温淬火并保温50-90分钟,然后依次进行冰冷、一次低温回火、二次低温回火,获得表面组织为高碳马氏体+少量残余奥氏体、心部组织为低碳马氏体的30CrNi3A结构钢制件。
进一步,30CrNi3A结构钢制件进行碳氮共渗的温度为840℃。
进一步,30CrNi3A结构钢制件在240℃热油中等温淬火并保温60分钟。
进一步,冰冷时的温度控制在-75℃至-85℃,冰冷时间为2小时至3小时。
进一步,一次低温回火的温度为525℃-550℃,保温时间为60-90分钟。
进一步,二次低温回火的温度为525℃-550℃,保温时间为60-90分钟。
发明的技术效果:(1)本发明的航空发动机传动用30CrNi3A结构钢制件热处理工艺,相对于现有技术,本发明热处理工艺在传统的热处理工艺基础上进行改进,通过碳氮共渗提高制件的耐磨性能和抗疲劳强度,制件淬火冷却时由直接淬火改为等温淬火的方式,通过调整等温淬火的温度,从而满足不同要求的综合性能。此种方案可有效改善结构钢综合性能,提高制件的安全性和可靠性;(2)在碳氮共渗过程中,由于高温氨气裂解,炉内气氛中氢的体积分数可达60%-80%,因此很容易在热处理过程中渗入30CrNi3A结构钢制件中,使得30CrNi3A结构钢制件表面含氢量显著提高,在30CrNi3A结构钢制件服役过程中发生氢脆断裂;通过两次低温回火,促使30CrNi3A结构钢制件的显微组织转化完全,使氢充分逸出,提升30CrNi3A结构钢制件的质量稳定性,避免脆性断裂的发生。
附图说明
下面结合说明书附图对本发明作进一步详细说明:
图1是实施例1中的30CrNi3A结构钢制件碳氮共渗后表面渗层组织的金相照片;
图2是实施例1中的30CrNi3A结构钢制件碳氮共渗后心部组织的金相照片。
具体实施方式
实施例1
本实施例的航空发动机传动用30CrNi3A结构钢制件热处理工艺,包括如下步骤:首先将30CrNi3A结构钢制件在840℃进行碳氮共渗,然后在240℃热油中等温淬火并保温60分钟,然后依次进行冰冷、一次低温回火、二次低温回火,
其中冰冷时的温度控制在-75℃至-85℃,冰冷时间为2小时,一次低温回火的温度为540℃,保温时间为60分钟,二次低温回火的温度为525℃,保温时间为60分钟,获得表面组织为高碳马氏体+少量残余奥氏体(2级)、心部组织为低碳马氏体(1级)的30CrNi3A结构钢制件;获得的30CrNi3A结构钢制件,其心部硬度值为48.5HRC,表面硬度为90.5HR15N,符合其性能要求:渗层表面硬度≥90HR15N,心部硬度46~50HRC。
30CrNi3A结构钢制件碳氮共渗后表面渗层组织的金相照片参见说明书附图1,心部组织的金相照片参见说明书附图2。
作为对比,在维持其他条件不变的情况下,对在240℃热油中等温淬火后的保温时间进行了调整,分别为0分钟、30分钟、90分钟和120分钟,获得的30CrNi3A结构钢制件,其对应的心部硬度值分别为:52.5HRC、49.2HRC、48.2HRC、48.0HRC,对应的表面硬度依次为91.5HR15N、91.0 HR15N、90.3 HR15N、89.9 HR15N。
实施例2
本实施例的航空发动机传动用30CrNi3A结构钢制件热处理工艺,包括如下步骤:首先将30CrNi3A结构钢制件在840℃进行碳氮共渗,然后在230℃热油中等温淬火并保温60分钟,然后依次进行冰冷、一次低温回火、二次低温回火,
其中冰冷时的温度控制在-75℃至-85℃,冰冷时间为2小时,一次低温回火的温度为540℃,保温时间为60分钟,二次低温回火的温度为525℃,保温时间为60分钟,获得表面组织为高碳马氏体+少量残余奥氏体、心部组织为低碳马氏体的30CrNi3A结构钢制件;获得的30CrNi3A结构钢制件,其心部硬度值为48.7HRC,表面硬度为90.8HR15N,符合其性能要求:渗层表面硬度≥90HR15N,心部硬度46~50HRC。
作为对比,在维持其他条件不变的情况下,对在230℃热油中等温淬火后的保温时间进行了调整,分别为0分钟、30分钟、90分钟和120分钟,获得的30CrNi3A结构钢制件,其对应的心部硬度值分别为:52.5HRC、49.5HRC、48.5HRC、48.2HRC,对应的表面硬度依次为91.5HR15N、91.2 HR15N、90.5 HR15N、90.1 HR15N。
通过上述实验,最终确定更为合适热处理工艺为0CrNi3A结构钢制件进行碳氮共渗的温度为840℃,然后在240℃热油中等温淬火并保温60分钟,然后依次进行冰冷、一次低温回火、二次低温回火。
显然,上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。
Claims (6)
1.一种航空发动机传动用30CrNi3A结构钢制件热处理工艺,其特征在于,包括如下步骤:首先将30CrNi3A结构钢制件在820℃-860℃进行碳氮共渗,然后在230~240℃热油中等温淬火并保温50-90分钟,然后依次进行冰冷、一次低温回火、二次低温回火,获得表面组织为高碳马氏体+残余奥氏体、心部组织为低碳马氏体的30CrNi3A结构钢制件。
2.根据权利要求1所述的航空发动机传动用30CrNi3A结构钢制件热处理工艺,其特征在于,30CrNi3A结构钢制件进行碳氮共渗的温度为840℃。
3.根据权利要求2所述的航空发动机传动用30CrNi3A结构钢制件热处理工艺,其特征在于,30CrNi3A结构钢制件在240℃热油中等温淬火并保温60分钟。
4.根据权利要求3所述的航空发动机传动用30CrNi3A结构钢制件热处理工艺,其特征在于,冰冷时的温度控制在-75℃至-85℃,冰冷时间为2小时至3小时。
5.根据权利要求4所述的航空发动机传动用30CrNi3A结构钢制件热处理工艺,其特征在于,一次低温回火的温度为525℃-550℃,保温时间为60-90分钟。
6.根据权利要求5所述的航空发动机传动用30CrNi3A结构钢制件热处理工艺,二次低温回火的温度为525℃-550℃,保温时间为60-90分钟。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110510693.9A CN113201739A (zh) | 2021-05-11 | 2021-05-11 | 一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110510693.9A CN113201739A (zh) | 2021-05-11 | 2021-05-11 | 一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113201739A true CN113201739A (zh) | 2021-08-03 |
Family
ID=77030850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110510693.9A Pending CN113201739A (zh) | 2021-05-11 | 2021-05-11 | 一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113201739A (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101994118A (zh) * | 2009-08-11 | 2011-03-30 | 顾安民 | 一种钢件的热处理方法 |
US20140041762A1 (en) * | 2011-04-13 | 2014-02-13 | Staffan Larsson | Method of heat treating a steel component |
CN103924248A (zh) * | 2014-04-24 | 2014-07-16 | 鑫光热处理工业(昆山)有限公司 | 汽车座椅调节器部件的碳氮共渗淬火工艺 |
CN105463307A (zh) * | 2015-11-24 | 2016-04-06 | 中北大学 | 一种具有梯度组织的q&p钢及其制备方法 |
-
2021
- 2021-05-11 CN CN202110510693.9A patent/CN113201739A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101994118A (zh) * | 2009-08-11 | 2011-03-30 | 顾安民 | 一种钢件的热处理方法 |
US20140041762A1 (en) * | 2011-04-13 | 2014-02-13 | Staffan Larsson | Method of heat treating a steel component |
CN103924248A (zh) * | 2014-04-24 | 2014-07-16 | 鑫光热处理工业(昆山)有限公司 | 汽车座椅调节器部件的碳氮共渗淬火工艺 |
CN105463307A (zh) * | 2015-11-24 | 2016-04-06 | 中北大学 | 一种具有梯度组织的q&p钢及其制备方法 |
Non-Patent Citations (3)
Title |
---|
《电渣熔铸汇编》编审组选编: "《电渣熔铸汇编》", 30 June 1979, 国防工业出版社 * |
日本钢铁协会 编,简光沂 译: "《钢材加工》", 31 May 1982, 上海科学技术出版社 * |
王亚 等: ""30CrNi3A材料碳氮共渗等温淬火的应用研究"", 《金属加工(热加工)》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6325867B1 (en) | Rolling bearing and heat treatment method therefor | |
WO2001068933A2 (en) | High performance carburizing stainless steel for high temperature use | |
CN108277449B (zh) | 一种对低碳合金钢工件进行渗碳淬火的热处理方法 | |
CN110578109A (zh) | 一种18Cr2Ni4WA材料制件的真空渗碳热处理工艺 | |
CN111809137B (zh) | 一种低碳高合金钢制轴承套圈的热加工方法 | |
JP2011032536A (ja) | 焼入れ鉄鋼部材の複合熱処理方法及び焼入れ鉄鋼部材 | |
CN114318168B (zh) | 一种高强度高韧性碳氮复渗钢及制备方法 | |
FR2991694A1 (fr) | Procede de traitement thermochimique pour une piece en acier combinant une etape de carbonitruration et une etape de nitruration | |
EP3604562B1 (en) | Method and steel component | |
CN105039901A (zh) | 一种碳氮共渗轴承零件及制备方法和具有该零件的球轴承 | |
CN113564320B (zh) | 一种航空发动机轴承用G13Cr4Mo4Ni4V钢热处理方法 | |
CN105506647A (zh) | 超韧性低碳钢螺丝的热处理生产工艺 | |
CN110565046A (zh) | 一种凿岩钎杆热处理方法 | |
EP2749666B1 (en) | Thermo-mechanical process for martensitic bearing steels and steel bearing component | |
CN117535481A (zh) | 一种15CrNi4MoA渗碳钢的热处理方法 | |
CN111500833A (zh) | 一种阀门耐热钢铸件热处理工艺 | |
CN113201739A (zh) | 一种航空发动机传动用30CrNi3A结构钢制件热处理工艺 | |
CN115679244A (zh) | 一种提高18Cr2Ni4WA齿轮强韧性的渗碳淬火工艺 | |
CN105369257A (zh) | 一种高碳轴承钢精密零件表面热处理方法 | |
CN111500830B (zh) | 一种渗碳零件回火热处理方法及渗碳零件 | |
CN104233319A (zh) | 一种提高铬镍钢材料渗碳淬火硬度的工艺方法 | |
CN114507769A (zh) | 18CrNiMo7-6钢的温锻余热等温正火方法 | |
CN113430484A (zh) | 一种18CrNi4A钢螺旋锥齿轮的热处理方法 | |
CN112522714A (zh) | 一种20CrNi2Mo钢的热处理方法及应用 | |
CN113802085B (zh) | 一种提高航空发动机轴承用8Cr4Mo4V钢力学性能的微渗碳工艺 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210803 |