CN107058708A - A kind of spring leaf class part method for controlling heat treatment deformation - Google Patents
A kind of spring leaf class part method for controlling heat treatment deformation Download PDFInfo
- Publication number
- CN107058708A CN107058708A CN201611205671.7A CN201611205671A CN107058708A CN 107058708 A CN107058708 A CN 107058708A CN 201611205671 A CN201611205671 A CN 201611205671A CN 107058708 A CN107058708 A CN 107058708A
- Authority
- CN
- China
- Prior art keywords
- spring leaf
- heat treatment
- school
- quenching
- bolt
- 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.)
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Classifications
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
- C21D11/00—Process control or regulation for heat treatments
Abstract
A kind of spring leaf class part method for controlling heat treatment deformation, belongs to heat treatment deformation control field.This method is as follows：1. Quenching Treatment is carried out to the part after cold forming；2. spring leaf is loaded into school clamp, fixed with the appropriate pretension of bolt, and be tempered together in assigned temperature；3. bolt is fully tightened after tempering time is more than half, stove heat is entered again until drawing process terminates.Advantages of the present invention：The method that shape and hot sizing are tieed up using fixture, torsional deformation that can be effectively after the quenching of correcting spring piece, it is ensured that respective organization and hardness requirement, have reached that the purpose of shape control is controlled in heat treatment.
Description
Technical field
The present invention relates to a kind of spring leaf class part heat treatment method, and in particular to a kind of heat treatment of spring leaf class part
Deformation control method.Torsional deformation suitable for correcting reed-type part, is related to heat treatment deformation control field.
Background technology
Spring leaf generally uses 65Mn steel bands, typically handles and is made by annealing, cold forming, quenching+average tempering, its
The fields such as electronic information, machine-building, Aero-Space are using quite varied.Spring leaf thin weak hard parts to be wide, quenching
Easily be distorted deformation afterwards, because elasticity is big after its tempering, is more difficult using the method for cold sizing, and school shape effect is poor.
The content of the invention
For weak point of the prior art, the invention discloses a kind of spring leaf class part heat treatment deformation controlling party
Method, it is intended to which the means for adjusting the gap of fixture center platen and base by tightening bolt by two steps can be substantially there is provided one kind
The quenched rear torsional deformation produced of part is corrected, effectively ensures the requirement subsequently assembled, is set while performance indications also reach
Count desired method for controlling heat treatment deformation.
The present invention is adopted the following technical scheme that：
1. a kind of spring leaf class part method for controlling heat treatment deformation, it is concretely comprised the following steps：
First step Quenching Treatment：The corresponding technological parameter of spring leaf is formulated according to material and design requirement, after shaping
Heat parts, carry out Quenching Treatment.
The pre- school shape of second step：Spring leaf after quenching is placed between the pressing plate in the clamp of school and base, it is suitable with bolt
Degree pretension is fixed, and is together heated in the case where specifying temperature.
3rd step end school shape：After tempering time is more than half, bolt is fully tightened, stove heat is entered again until drawing process knot
Beam.
On the basis of above scheme, further optimize as follows：
In the first step, the part after shaping is put into carbon case and heated, to reduce high-temperature oxydation；Hardening heat is 800
~820 DEG C.
Between pressing plate and base in the school clamp, pretightning force is applied to part by symmetrically arranged bolt.
Described temperature is 350 DEG C~400 DEG C, and tempering time is h.
For this materials of 65Mn, it is desirable to from 400-440 degrees Celsius of tempering, 35-40HRC 500- during 40-45HRC
520 degree of tempering, tempering insulation time is depending on the thickness of material, and the heat treating regime of other materials can refer to standard QJ2257
Beneficial effects of the present invention：
Shape restricted spring piece deformation is tieed up using fixture in tempering, defines hot sizing method and step to adjust part most
Whole size, meanwhile, tighten bolt in two steps in temperature to adjust the gap of fixture center platen and base, to correct bullet
Torsional deformation after reed quenching, the centre of mould clamps pressing plate and bottom plate by bolt, passes through symmetrically arranged spiral shell
Bolt makes close uniform force of being fitted between spring leaf and fixture, makes the full and uniform compacting spring leaf of mould in drawing process and mould
Tool is indeformable in itself.Deflection is can be controlled within 0.2mm, and the tissue and performance of part also meet design requirement.Compared to cold
School shape, the method resilience is small and school shape effect is obvious, it is ensured that performance, which is met, after respective organization and hardness requirement, tempering accordingly will
Ask.
Brief description of the drawings
Fig. 1 spring leafs school clamp frock sketch
The schematic top plan view of Fig. 2 clamp fixtures
Figure acceptance of the bid, which is scored, not to be represented：1-pressing plate, 2-spring leaf, 3-bottom plate, 4-bolt.
Embodiment
Below, with reference to the drawings and specific embodiments, the embodiment to invention is further described.
Embodiment 1
As shown in Figure 1, 2, between the pressing plate and base in the clamp of school, it is symmetrical arranged the spiral shell for applying pretightning force to part
Bolt.
The first step, Quenching Treatment：65Mn reeds after cold forming are placed in carbon case, to reduce the high temperature oxygen of part
Change, together enter stove and in 800~820 DEG C of heating and thermal insulations, carry out Quenching Treatment；
The pre- school shape of second step：Spring leaf after quenching is placed in the clamp of school, because reed deformation differs and hardness
It is higher, can first appropriate pretension fixation clip and base bolt, allow reed largely laminating, enter stove and in the case where specifying temperature
Heating, wherein temperature are 350 DEG C~400 DEG C；
3rd step end school shape：Total tempering time is h, treats that tempering time is more than half, spring hardness is significantly reduced, then fully
Bolt is tightened, allows spring leaf integrally to fit in pressing plate and base completely, stove heat is entered again up to drawing process terminates, is air-cooled to
Room temperature, removes fixture.
The preferable possible embodiments of the present invention are the foregoing is only, not thereby limit to the scope of the claims of the present invention, thus it is all
It is the equivalence changes made with description of the invention and accompanying drawing content, is both contained in protection scope of the present invention.
Claims (3)
1. a kind of spring leaf class part method for controlling heat treatment deformation, it is concretely comprised the following steps：
The first step, Quenching Treatment：The corresponding technological parameter of spring leaf is formulated according to material and design requirement, by the part after shaping
Heating, carries out Quenching Treatment；
Second step, pre- school shape：Spring leaf after quenching is placed between the pressing plate in the clamp of school and base, it is moderately pre- with bolt
Fasten, part and school clamp are together entered into stove, heated in the case where specifying temperature；
3rd step, whole school shape：After tempering time is more than half, the bolt of school clamp is fully tightened, again by part and school clevis
Have into stove heat, until drawing process terminates.
2. a kind of spring leaf class part method for controlling heat treatment deformation according to claim 1, it is characterised in that the first step
In, the part, which is put into carbon case, heats quenching, and hardening heat is 800~820 DEG C.
3. a kind of spring leaf class part method for controlling heat treatment deformation according to claim 1, it is characterised in that the school
Between the pressing plate and base of clamp, pretightning force is applied to part by symmetrically arranged bolt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977341 | 2015-12-23 | ||
| CN2015109773419 | 2015-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107058708A true CN107058708A (en) | 2017-08-18 |
Family
ID=59623148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611205671.7A Pending CN107058708A (en) | 2015-12-23 | 2016-12-23 | A kind of spring leaf class part method for controlling heat treatment deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107058708A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798314A (en) * | 2019-02-22 | 2019-05-24 | 沈阳远大装备科技有限公司 | The heat treatment method of metal isolator and its bending plate |
| CN110564944A (en) * | 2019-09-30 | 2019-12-13 | 贵州航天电子科技有限公司 | Beryllium bronze contact reed heat treatment positioning tool and heat treatment process using same |
| CN111468564A (en) * | 2020-04-24 | 2020-07-31 | 重庆派斯克刀具制造股份有限公司 | Straightening tool and using method thereof |
| CN111979388A (en) * | 2020-07-28 | 2020-11-24 | 常州龙腾光热科技股份有限公司 | Manufacturing method of 65Mn spring plate of trough type solar heat collector |
| CN112626328A (en) * | 2020-12-16 | 2021-04-09 | 无锡市创新开关电器有限公司 | Novel spring piece heat treatment processing technology |
| CN112775218A (en) * | 2020-12-04 | 2021-05-11 | 上海航天设备制造总厂有限公司 | Composite processing tool and method for forming and heat treating beryllium bronze reed |
| CN113680912A (en) * | 2021-08-16 | 2021-11-23 | 西安远航真空钎焊技术有限公司 | Shape correction method for heater panel |
| CN113798351A (en) * | 2021-10-08 | 2021-12-17 | 内蒙古北方重工业集团有限公司 | Thermal correction method for large-scale frame thin-wall parts |
| CN114058823A (en) * | 2021-11-29 | 2022-02-18 | 山西柴油机工业有限责任公司 | Heat treatment method and tempering clamp for cylinder gasket of high-power diesel engine |
| CN116765769A (en) * | 2023-08-16 | 2023-09-19 | 陕西长羽航空装备股份有限公司 | Welding and stress-relieving shape correcting method for high-temperature alloy welding piece |
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| CN103757193A (en) * | 2013-12-23 | 2014-04-30 | 辽宁工业大学 | Method and mould for preventing heat treatment distortion of ultrathin leaf springs |
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| CN103757193A (en) * | 2013-12-23 | 2014-04-30 | 辽宁工业大学 | Method and mould for preventing heat treatment distortion of ultrathin leaf springs |
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| 张新 等: "防止超薄弹簧阀片变形的热处理工艺研究", 《辽宁工业大学学报(自然科学版)》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798314A (en) * | 2019-02-22 | 2019-05-24 | 沈阳远大装备科技有限公司 | The heat treatment method of metal isolator and its bending plate |
| CN110564944A (en) * | 2019-09-30 | 2019-12-13 | 贵州航天电子科技有限公司 | Beryllium bronze contact reed heat treatment positioning tool and heat treatment process using same |
| CN111468564A (en) * | 2020-04-24 | 2020-07-31 | 重庆派斯克刀具制造股份有限公司 | Straightening tool and using method thereof |
| CN111468564B (en) * | 2020-04-24 | 2022-03-01 | 重庆派斯克刀具制造股份有限公司 | Straightening tool and using method thereof |
| CN111979388A (en) * | 2020-07-28 | 2020-11-24 | 常州龙腾光热科技股份有限公司 | Manufacturing method of 65Mn spring plate of trough type solar heat collector |
| CN112775218A (en) * | 2020-12-04 | 2021-05-11 | 上海航天设备制造总厂有限公司 | Composite processing tool and method for forming and heat treating beryllium bronze reed |
| CN112626328A (en) * | 2020-12-16 | 2021-04-09 | 无锡市创新开关电器有限公司 | Novel spring piece heat treatment processing technology |
| CN113680912A (en) * | 2021-08-16 | 2021-11-23 | 西安远航真空钎焊技术有限公司 | Shape correction method for heater panel |
| CN113798351A (en) * | 2021-10-08 | 2021-12-17 | 内蒙古北方重工业集团有限公司 | Thermal correction method for large-scale frame thin-wall parts |
| CN114058823A (en) * | 2021-11-29 | 2022-02-18 | 山西柴油机工业有限责任公司 | Heat treatment method and tempering clamp for cylinder gasket of high-power diesel engine |
| CN116765769A (en) * | 2023-08-16 | 2023-09-19 | 陕西长羽航空装备股份有限公司 | Welding and stress-relieving shape correcting method for high-temperature alloy welding piece |
| CN116765769B (en) * | 2023-08-16 | 2023-10-31 | 陕西长羽航空装备股份有限公司 | Welding and stress-relieving shape correcting method for high-temperature alloy welding piece |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |