CN101144114A - Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring - Google Patents
Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring Download PDFInfo
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- CN101144114A CN101144114A CNA2007100779947A CN200710077994A CN101144114A CN 101144114 A CN101144114 A CN 101144114A CN A2007100779947 A CNA2007100779947 A CN A2007100779947A CN 200710077994 A CN200710077994 A CN 200710077994A CN 101144114 A CN101144114 A CN 101144114A
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Abstract
The present invention discloses a thermal processing method which can improve the anti-high temperature and the anti-loosening capabilities of a high temperature alloy spring. The thermal processing method comprises spring winding, single spring cutting, ageing, fine finishing, loaded ageing, and summarizing and testing. The present invention is characterized in that a solution treatment is performed to the spring wire after the winding and the single spring cutting, and before the ageing. The solution treatment adopts the conventional solution treatment temperature of a material according to the material difference, and the temperature holding time is 3-5 min. The method can lead the high temperature alloy spring to have high intensity and creeping capability and to meet the technical requirement.
Description
Technical field
The invention belongs to the heat treatment technics field, relate in particular to a kind of heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance.
Background technology
Iron-based or nickel-base alloy have good high-temperature intensity and antioxidant property, usually are used to make the spring that high temperature (359-950 ℃) uses.But because the strength ratio lower (generally be not more than 1300MPa) of superalloy after solid solution and timeliness are handled, therefore generally with the spring wire cold deformation strengthening to improve intensity.The manufacturing of traditional high temperature alloy spring is directly to adopt the cold deformation steel wire to twine, and takes the heat treating method of direct aging then.Material exists bigger unrelieved stress and Deformation structure's instability after cold deformation, cause spring when high temperature (as: the GH4169 spring is at 650 ℃) descends load up ageing, scraps much larger than technical requirements owing to stress relaxation causes the contraction of spring or elongation.Solution treatment is that alloy is heated to the high temperature single phase region and is incubated certain hour, makes some constituent fully be dissolved into the heat treating method of quick cooling becoming saturated solid solution in back in the sosoloid.
Summary of the invention
A kind of heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance that makes high temperature alloy spring have high intensity, creep ability and satisfy technical requirements that the objective of the invention is to overcome above-mentioned shortcoming and provide.
A kind of heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance that the present invention proposes, comprise: spring twines, cuts single spring, timeliness, precision work, load up ageing, gathers check, it is characterized in that: after spring wire twines and cuts single spring, carry out solution treatment before the timeliness.
The above-mentioned heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance is characterized in that: solution treatment is according to the different mining of the material conventional solid solution temperature with this material, soaking time 3-5min.
The above-mentioned heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance is characterized in that: the solution treatment preferred temperature is conventional lower limit temperature.
The present invention compared with prior art, as can be known from the above technical solutions, the solution treatment of soaking time 3-5min can make drawn wire Deformation structure reply, form polygonization, but do not produce recrystallize, thereby under the prerequisite that keeps the certain cold working hardening of spring, significantly improve stress relaxation and the creep ability of spring below 700 ℃.Carry out 720 ℃ of timeliness on this basis, make spring have high intensity, creep ability, and satisfy technical requirements.Guaranteed the strengthening effect that high temperature load up ageing process medi-spring obtains, this is very favorable concerning the spring that is in hot environment work, has both improved spring and has resisted ability loose and creep, has improved the fatigue strength of spring again.
Embodiment
Embodiment 1: with spring wire diameter of phi 1.6, internal diameter is Φ 14 ± 0.25, and 5.1 ° of helix angles, free length are that the GH4169 high temperature alloy compression spring of 24.3 ± 0.5mm is an example.
(1) the spring washing is twined, and is cut into single spring.
(2) solution treatment: vacuum air-quenching furnace, 980 ± 10 ℃ of temperature, time 5min;
(3) timeliness: vacuum air-quenching furnace, 720 ℃ of temperature, time 5h;
(4) precision work is ground both ends of the spring face, correcting spring size, is gone both ends of the spring capillus thorn, destressing tempering;
(5) load up ageing: compress the spring into 12.3mm and put into vacuum oven, 650 ℃ of temperature, time 5h:
Be compressed to the spring ring doubling-up (6) ten times.Mill school both ends of the spring face guarantees the spring size.Check the spring force value.Chemical passivation, gather check.
Record free length and shorten to 25mm, part is qualified.
Embodiment 2: with spring wire diameter of phi 1, external diameter is Φ 10
-0.2, 5.6 ° of helix angles, free length are that the GH4169 high temperature alloy compression spring of 21.1 ± 0.7mm is an example.
(1) the spring washing is twined, and is cut into single spring.
(2) solution treatment: vacuum air-quenching furnace, 980 ± 10 ℃ of temperature, time 3min;
(3) timeliness: vacuum air-quenching furnace, 720 ± 10 ℃ of temperature, time 6h;
(4) precision work, mill both ends of the spring face, correcting spring size, go both ends of the spring capillus thorn, destressing tempering;
(5) load up ageing: compress the spring into 10.9mm and put into vacuum oven, 650 ± 20 ℃ of temperature, time 5h:
Be compressed to the spring ring doubling-up (6) ten times.Mill school both ends of the spring face guarantees the spring size.Check the spring force value.Chemical passivation, gather check.
Record spring free length and foreshorten to 21.3mm, part is qualified.
Embodiment 3: with spring wire diameter of phi 0.5, external diameter is Φ 2.9
+ 0.3, 7.6 ° of helix angles, free length are that the GH4169 high temperature alloy compression spring of 6.25 ± 0.5mm is an example.
(1) the spring washing is twined, and is cut into single spring.
(2) solution treatment: vacuum air-quenching furnace, 980 ± 10 ℃ of temperature, time 3min;
(3) timeliness: vacuum air-quenching furnace, 720 ± 10 ℃ of temperature, time 6h;
(4) precision work, mill both ends of the spring face, correcting spring size, go both ends of the spring capillus thorn, destressing tempering;
(5) load up ageing: compress the spring into 5.1mm and put into vacuum oven, 650 ± 20 ℃ of temperature, time 5h:
Be compressed to the spring ring doubling-up (6) ten times.Mill school both ends of the spring face guarantees the spring size.Check the spring force value.Chemical passivation, gather check.
Record spring free length 7 and foreshorten to 6.3mm, part is qualified.
Claims (3)
1. heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance, comprise: spring twines, cuts single spring, timeliness, precision work, load up ageing, gathers check, it is characterized in that: after spring wire twines and cuts single spring, carry out solution treatment before the timeliness.
2. the heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance as claimed in claim 1 is characterized in that: solution treatment is according to the different mining of the material conventional solid solution temperature with this material, soaking time 3-5min.
3. the heat treating method that can improve the loose ability of high temperature alloy spring high temperature resistance as claimed in claim 1 is characterized in that: solid solution temperature is conventional lower limit temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100779947A CN101144114A (en) | 2007-11-01 | 2007-11-01 | Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring |
Applications Claiming Priority (1)
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| CNA2007100779947A CN101144114A (en) | 2007-11-01 | 2007-11-01 | Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring |
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| CN101144114A true CN101144114A (en) | 2008-03-19 |
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| CNA2007100779947A Pending CN101144114A (en) | 2007-11-01 | 2007-11-01 | Heat treatment method capable of increasing high temperature loose resisting capability of high temperature alloy spring |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205552A (en) * | 2013-03-28 | 2013-07-17 | 贵州红林机械有限公司 | Heat treatment technology of 0Cr17Ni7Al-made multilayer wave springs |
| CN105570362A (en) * | 2016-01-08 | 2016-05-11 | 江阴法尔胜佩尔新材料科技有限公司 | Nickel-titanium spring having high output force value ratio under high and low temperatures |
| CN106367578A (en) * | 2016-08-29 | 2017-02-01 | 中航动力股份有限公司 | High-temperature alloy spring forming method |
| CN109234655A (en) * | 2018-09-27 | 2019-01-18 | 北京科技大学 | A method of improving GH4169 high temperature alloy relaxation stability |
| CN109371218A (en) * | 2018-11-29 | 2019-02-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of oil leak valve high-strength spring compression timeliness method for shaping |
| CN111745099A (en) * | 2020-06-30 | 2020-10-09 | 中国航发动力股份有限公司 | Processing method and tool for 3J68 functional alloy material small-diameter annular spiral spring |
| WO2020248459A1 (en) * | 2019-06-10 | 2020-12-17 | 育材堂（苏州）材料科技有限公司 | Heat treatment method for high-strength steel and product obtained therefrom |
| CN113549853A (en) * | 2021-07-29 | 2021-10-26 | 洛阳凯云装备科技有限公司 | Processing technology of high-temperature-resistant corrosion-resistant pressure spring |
-
2007
- 2007-11-01 CN CNA2007100779947A patent/CN101144114A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205552A (en) * | 2013-03-28 | 2013-07-17 | 贵州红林机械有限公司 | Heat treatment technology of 0Cr17Ni7Al-made multilayer wave springs |
| CN105570362A (en) * | 2016-01-08 | 2016-05-11 | 江阴法尔胜佩尔新材料科技有限公司 | Nickel-titanium spring having high output force value ratio under high and low temperatures |
| CN106367578A (en) * | 2016-08-29 | 2017-02-01 | 中航动力股份有限公司 | High-temperature alloy spring forming method |
| CN109234655A (en) * | 2018-09-27 | 2019-01-18 | 北京科技大学 | A method of improving GH4169 high temperature alloy relaxation stability |
| CN109371218A (en) * | 2018-11-29 | 2019-02-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of oil leak valve high-strength spring compression timeliness method for shaping |
| CN109371218B (en) * | 2018-11-29 | 2020-09-04 | 中国航发沈阳黎明航空发动机有限责任公司 | Compression aging shaping method for high-strength spring for oil leakage valve |
| WO2020248459A1 (en) * | 2019-06-10 | 2020-12-17 | 育材堂（苏州）材料科技有限公司 | Heat treatment method for high-strength steel and product obtained therefrom |
| CN111745099A (en) * | 2020-06-30 | 2020-10-09 | 中国航发动力股份有限公司 | Processing method and tool for 3J68 functional alloy material small-diameter annular spiral spring |
| CN113549853A (en) * | 2021-07-29 | 2021-10-26 | 洛阳凯云装备科技有限公司 | Processing technology of high-temperature-resistant corrosion-resistant pressure spring |
| CN113549853B (en) * | 2021-07-29 | 2022-04-22 | 洛阳凯云装备科技有限公司 | Processing technology of high-temperature-resistant corrosion-resistant pressure spring |
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