CN207845713U - A kind of mold for preventing thin-walled ring heat-treatment distortion - Google Patents
A kind of mold for preventing thin-walled ring heat-treatment distortion Download PDFInfo
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- CN207845713U CN207845713U CN201721772827.XU CN201721772827U CN207845713U CN 207845713 U CN207845713 U CN 207845713U CN 201721772827 U CN201721772827 U CN 201721772827U CN 207845713 U CN207845713 U CN 207845713U
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- thin
- mold
- walled ring
- apical tooth
- heat treatment
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Abstract
A kind of mold for preventing thin-walled ring heat-treatment distortion, including mold, mold is mainly made of apical tooth and collar, apical tooth is uniformly distributed in the outside of collar, the outer ledge of the apical tooth is the circular arc concentric with the center of circle of collar, arc radius and the inner circle radius of thin-walled ring are adapted, and the side height of apical tooth is consistent with the side height of thin-walled ring.Pass through the implementation of the utility model, mold can withstand the inner ring of thin-walled ring during heat treatment, prevent its deformation, in addition the apparatus structure of the utility model is simple, the waste material for having used processing to generate in the process does not have to individually select rapidoprint, has saved manufacturing cost, and it prevents method of the thin-walled ring in heat treatment relatively simple, the heat treatment process complexity of thin-walled ring will not be increased.
Description
Technical field
The utility model belongs to field of machining, is related to the heat treatment process of part, specially a kind of thin for preventing
The mold of wall ring heat-treatment distortion.
Background technology
Currently, the high temperature alloy used in the fields such as civil aviation, space flight, gas turbine, high-end engineering machinery, titanium close
The less-deformable alloys material thin wall ring such as gold since internal residual stress is higher in forging, operation of rolling ring billet, and is unevenly distributed
It is even, and the prior art cannot completely eliminate the residual stress of forging, therefore often in subsequent heat treatment process just by it
Stress removes, and in heat treatment, since ring wall thickness is relatively thin, the heat treatment of thin-walled ring is caused to occur size distortion often, most
Ring dimension overproof is caused eventually, cannot be satisfied application demand.
Chinese patent (publication number：CN103074572B a kind of metal material thin-wall annular part endoporus nitridation process) is disclosed
In anti-deformation fixture and anti-deformation method, it uses the forms of fixture ring to be fixed thin-walled ring outer ring, resynchronisation
Be heat-treated, prevent thin-walled ring from deforming during heat treatment, but this fixture not to the material of thin-walled ring with
And clamp material used is defined, if the coefficient of thermal expansion of fixture material therefor is more than the material heat expansion of thin-walled ring
Coefficient, then more than thin-walled ring, can not probably play fixation during heat treatment prevents from deforming fixture thermal expansion size
Effect；If the coefficient of thermal expansion of fixture material therefor is less than the material thermal expansion coefficient of thin-walled ring, thin-walled ring is in heat
It is possible to, to inner ring dilatancy, lead to part rejection in processing procedure, in addition, the clamp structure is complex, manufacturing cost
Higher, installation is time-consuming and laborious.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of mould for preventing thin-walled ring heat-treatment distortion
Tool.
The utility model is achieved by the following technical programs.
A kind of mold for preventing thin-walled ring heat-treatment distortion provided by the utility model, including mold, mold
Body is mainly made of apical tooth and collar, and the quantity of apical tooth is 8-16, is uniformly distributed in the outside of collar, the outside of the apical tooth
Edge is the circular arc concentric with the center of circle of collar, the radius of the circular arc and the inner circle radius for being ready for the thin-walled ring being heat-treated
It is adapted, the side height of apical tooth is consistent with the side height of thin-walled ring for being ready for heat treatment.
The outer ledge arc radius of the apical tooth, is confirmed by formula：C=D/ [1+ (a-b) %]；
Wherein, C is the outer ledge arc radius of apical tooth；D is the inner circle radius for the thin-walled ring for being ready for heat treatment；
A is coefficient of thermal expansion of the mold materials in corresponding heat treatment temperature；B is to be ready for used in the thin-walled ring of heat treatment
Coefficient of thermal expansion of the material in corresponding heat treatment temperature.
The sharp corner of the apical tooth both sides carries out rounded corner processing, radius of corner 15mm.
The thickness of the apical tooth is 30-50mm.
The thickness of the collar is 30-50mm.
The beneficial effects of the utility model are：By the implementation of the utility model, mold is set to thin-walled ring
Inner ring, and the material thermal expansion coefficient selected by it is more than the coefficient of thermal expansion of thin-walled ring, during heat treatment mould
The inner ring that thin-walled ring can specifically be withstood, prevents its deformation, and the apparatus structure of the utility model is simple in addition, and processing has been used to give birth to
The waste material generated in the process is produced, does not have to individually select rapidoprint, has saved manufacturing cost, and prevent thin-walled ring in Re Chu
Method when reason is relatively simple, will not increase the heat treatment process complexity of thin-walled ring.
Description of the drawings
Fig. 1 is the mold structural schematic diagram of the utility model；
Fig. 2 is the A-A direction views of the mold structural schematic diagram of the utility model；
Fig. 3 is when the utility model is used and the scheme of installation of thin-walled ring；
In figure：1- molds, 101- apical tooths, 102- collars, 2- thin-walled rings.
Specific implementation mode
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figs. 1-3, a kind of mold for preventing thin-walled ring heat-treatment distortion, including mold 1, mold 1
It is mainly made of apical tooth 101 and collar 102, the quantity of apical tooth 101 is 8-16, is uniformly distributed in the outside of collar 102, described
The outer ledge of apical tooth 101 be the circular arc concentric with the center of circle of collar 102, the radius of the circular arc and be ready for be heat-treated it is thin
The inner circle radius of wall ring 2 is adapted, the side height of apical tooth 101 and the lateral height for being ready for the thin-walled ring 2 being heat-treated
Degree is consistent.
When it is implemented, 101 quantity of apical tooth is 12, the angle between two neighboring apical tooth 101 is 30 °.
The outer ledge arc radius of the apical tooth 101, is confirmed by formula：C=D/ [1+ (a-b) %]；
Wherein, C is the outer ledge arc radius of apical tooth 101；D is the inner circle for the thin-walled ring 2 for being ready for heat treatment
Radius；A is coefficient of thermal expansion of the mold materials in corresponding heat treatment temperature；B is the thin-walled ring for being ready for heat treatment
Coefficient of thermal expansion of 2 material therefor of part in corresponding heat treatment temperature.
When carrying out Mold Making, the material of selection should meet under corresponding heat treatment temperature, and the heat of mold materials is swollen
Swollen coefficient a is more than the coefficient of thermal expansion b for 2 material therefor of thin-walled ring for being ready for heat treatment.
The mode of production used in the mold 1 is casting.
Raw material used in the mold 1 are generated high-temperature alloy waste material and austenite stainless during production
The mixture of steel waste material.
The mold 1 also needs to be heat-treated before being installed and used, and detailed process is to be heated to mold 1
1030 ± 15 DEG C and 70-90min is kept, then carries out water cooling.
The sharp corner of 101 both sides of the apical tooth carries out rounded corner processing, radius of corner 15mm.Fillet processing is carried out, it can
To prevent when mold 1 is installed and in heat treatment process, sharp edges cause to damage to the inner ring of thin-walled ring 2.
The thickness of the apical tooth 101 is 30-50mm.Consistency of thickness of the thickness of apical tooth 101 generally with thin-walled ring 2, tool
Body need to carry out selection installation when implementing.
The thickness of the collar 102 is 30-50mm.Consistency of thickness of the thickness of collar 102 generally with thin-walled ring 2, tool
Body need to carry out selection installation when implementing.As thickness is inconsistent, it is likely that so that mold 1 is excessively swollen during heat treatment,
The inner ring of thin-walled ring 2 is caused to deform.
When be heat-treated to thin-walled ring 2, first mold 1 is placed in the inner ring of thin-walled ring 2, then will
Mold 1 is heat-treated together with thin-walled ring 2, after thin-walled ring 2 completes whole heat treatment processes again by mold 1 from
It is taken out in the inner ring of thin-walled ring 2.
When being heat-treated, since under synthermal, the material thermal expansion coefficient of mold 1 is more than thin-walled ring 2
Material thermal expansion coefficient, so after temperature raising, the lateral edge of apical tooth 101 can withstand the inner ring of thin-walled ring 2, prevent
It is deformed in heat treatment because residual stress recycles.
By the implementation of the utility model, mold is set to the inner ring of thin-walled ring, and the material selected by it
Coefficient of thermal expansion is more than the coefficient of thermal expansion of thin-walled ring, and mold can withstand the inner ring of thin-walled ring during heat treatment,
Its deformation is prevented, the apparatus structure of the utility model is simple in addition, the waste material for having used processing to generate in the process, does not have to single
Rapidoprint is solely selected, manufacturing cost has been saved, and prevents method of the thin-walled ring in heat treatment relatively simple, Bu Huizeng
Add the heat treatment process complexity of thin-walled ring.
Claims (5)
1. a kind of mold for preventing thin-walled ring heat-treatment distortion, it is characterised in that：Including mold (1), mold (1)
It is mainly made of apical tooth (101) and collar (102), the quantity of apical tooth (101) is 8-16, is uniformly distributed in collar (102)
The outer ledge in outside, the apical tooth (101) is the circular arc concentric with the center of circle of collar (102), the radius of the circular arc and preparation
The inner circle radius of the thin-walled ring (2) being heat-treated is adapted, and the side height of apical tooth (101) and is ready for heat treatment
The side height of thin-walled ring (2) is consistent.
2. the mold as described in claim 1 for preventing thin-walled ring heat-treatment distortion, it is characterised in that：The apical tooth
(101) outer ledge arc radius, is confirmed by formula：C=D/ [1+ (a-b) %]；
Wherein, C is the outer ledge arc radius of apical tooth (101)；D is the inner circle for the thin-walled ring (2) for being ready for heat treatment
Radius；A is coefficient of thermal expansion of the mold materials in corresponding heat treatment temperature；B is the thin-walled ring for being ready for heat treatment
Coefficient of thermal expansion of part (2) material therefor in corresponding heat treatment temperature.
3. the mold as described in claim 1 for preventing thin-walled ring heat-treatment distortion, it is characterised in that：The apical tooth
(101) sharp corner of both sides carries out rounded corner processing, radius of corner 15mm.
4. the mold as described in claim 1 for preventing thin-walled ring heat-treatment distortion, it is characterised in that：The apical tooth
(101) thickness is 30-50mm.
5. the mold as described in claim 1 for preventing thin-walled ring heat-treatment distortion, it is characterised in that：The collar
(102) thickness is 30-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772827.XU CN207845713U (en) | 2017-12-18 | 2017-12-18 | A kind of mold for preventing thin-walled ring heat-treatment distortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772827.XU CN207845713U (en) | 2017-12-18 | 2017-12-18 | A kind of mold for preventing thin-walled ring heat-treatment distortion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207845713U true CN207845713U (en) | 2018-09-11 |
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ID=63421169
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721772827.XU Active CN207845713U (en) | 2017-12-18 | 2017-12-18 | A kind of mold for preventing thin-walled ring heat-treatment distortion |
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| CN (1) | CN207845713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114686671A (en) * | 2022-04-19 | 2022-07-01 | 中国科学院近代物理研究所 | Flexible liner for heat treatment of magnetic alloy rings |
-
2017
- 2017-12-18 CN CN201721772827.XU patent/CN207845713U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114686671A (en) * | 2022-04-19 | 2022-07-01 | 中国科学院近代物理研究所 | Flexible liner for heat treatment of magnetic alloy rings |
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