CN105714079A - Heat treatment process for spring - Google Patents
Heat treatment process for spring Download PDFInfo
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- CN105714079A CN105714079A CN201410723945.6A CN201410723945A CN105714079A CN 105714079 A CN105714079 A CN 105714079A CN 201410723945 A CN201410723945 A CN 201410723945A CN 105714079 A CN105714079 A CN 105714079A
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- spring
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- tempering
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Abstract
The invention discloses a heat treatment process for a spring. The spring is made of 65 Mn steel. The heat treatment process comprises the following process steps: quenching; tempering; aligning; and stress release and tempering. The heat treatment process for the spring strictly controls technological parameters of each phase, is substantially reduced in procedures, simple in process, convenient to operate and low in energy loss, improves ductility, toughness and fatigue strength of the spring and allows the spring to meet use requirements.
Description
Technical field
The invention belongs to Technology for Heating Processing field, specifically the Technology for Heating Processing of a kind of spring.
Background technology
In the prior art, spring is important component of machine, and " S " therein type spring is widely used in the industrial circles such as locomotive, vehicle, automobile.As Technology for Heating Processing crucial in spring production process, the physical property and life-span improving spring is played a key effect.Current domestic heattreatment of spring adopts general oil quenching technique mostly, and its deficiency is: 1, can not obtain lower bainite, it is impossible to improve the plasticity of spring, toughness and fatigue limit；2, in spring, austenite crystal does not refine further, and spring mechanical performance can not obtain improvement further.
Summary of the invention
In view of the deficiency that prior art exists, it is provided that the Technology for Heating Processing of a kind of spring, the structure property of spring can be improved and extend spring life.
The technical scheme realizing the object of the invention is as follows:
The Technology for Heating Processing of a kind of spring, described spring material is 65Mn steel, is characterised by, its processing step includes: quenching → tempering → alignment → destressing tempering；Described quenching technical is: heating-up temperature 860-890 DEG C, adopts methanol decomposition to protect, temperature retention time 45～60min；It is then placed in 50-90 DEG C of oil, time 8-10min；Described tempering process is: heating-up temperature 300-350 DEG C, temperature retention time 90-120min, and water-cooled is to room temperature；Described destressing tempering: heating-up temperature 160 DEG C-180 DEG C, temperature retention time 120～150min, air cooling is to room temperature.
The Technology for Heating Processing of a kind of spring of the present invention, is strictly controlled each stage process parameter, and operation substantially reduces, and technique is simple, and easy to operate, energy loss is low, improves spring plasticity, toughness and fatigue strength, meets instructions for use.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and its operating procedure is as follows:
The Technology for Heating Processing of a kind of spring, described spring material is 65Mn steel, and its processing step includes: quenching → tempering → alignment → destressing tempering；Described quenching technical is: heating-up temperature 880 DEG C, adopts methanol decomposition to protect, temperature retention time 50min；It is then placed in 65 DEG C of oil, time 9min；Described tempering process is: heating-up temperature 305 DEG C, temperature retention time 100min, and water-cooled is to room temperature；Described destressing tempering: heating-up temperature 175 DEG C, temperature retention time 125min, air cooling is to room temperature.
The Technology for Heating Processing of a kind of spring of the present invention, is strictly controlled each stage process parameter, and operation substantially reduces, and technique is simple, and easy to operate, energy loss is low, improves spring plasticity, toughness and fatigue strength, meets instructions for use.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should at the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by logic minute analysis, reasoning or the available technical scheme of limited experiment.
Claims (1)
1. a Technology for Heating Processing for spring, described spring material is 65Mn steel, it is characterised in that its processing step includes: quenching → tempering → alignment → destressing tempering；Described quenching technical is: heating-up temperature 860-890 DEG C, adopts methanol decomposition to protect, temperature retention time 45～60min；It is then placed in 50-90 DEG C of oil, time 8-10min；Described tempering process is: heating-up temperature 300-350 DEG C, temperature retention time 90-120min, and water-cooled is to room temperature；Described destressing tempering: heating-up temperature 160 DEG C-180 DEG C, temperature retention time 120～150min, air cooling is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723945.6A CN105714079A (en) | 2014-12-04 | 2014-12-04 | Heat treatment process for spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723945.6A CN105714079A (en) | 2014-12-04 | 2014-12-04 | Heat treatment process for spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105714079A true CN105714079A (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410723945.6A Pending CN105714079A (en) | 2014-12-04 | 2014-12-04 | Heat treatment process for spring |
Country Status (1)
| Country | Link |
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| CN (1) | CN105714079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
| CN106195084A (en) * | 2016-07-06 | 2016-12-07 | 安徽红桥金属制造有限公司 | A kind of special torque spring of locomotive and processing technique thereof |
-
2014
- 2014-12-04 CN CN201410723945.6A patent/CN105714079A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195084A (en) * | 2016-07-06 | 2016-12-07 | 安徽红桥金属制造有限公司 | A kind of special torque spring of locomotive and processing technique thereof |
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
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| WD01 | Invention patent application deemed withdrawn after publication |