CN106676243A - Machining method of inserts - Google Patents
Machining method of inserts Download PDFInfo
- Publication number
- CN106676243A CN106676243A CN201710022259.XA CN201710022259A CN106676243A CN 106676243 A CN106676243 A CN 106676243A CN 201710022259 A CN201710022259 A CN 201710022259A CN 106676243 A CN106676243 A CN 106676243A
- Authority
- CN
- China
- Prior art keywords
- insert
- group
- processing method
- inserts
- pallet
- 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.)
- Granted
Links
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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
Abstract
The invention provides a machining method of inserts. The method comprises the following steps that 1, two or more through holes are formed in each insert, connecting parts are placed into the through holes, every two inserts are placed oppositely and connected through the connecting parts, and an inset set is obtained; 2, the insert set obtained in the step 1 is vertically placed in a tray and loaded into a furnace, and then stress relief annealing treatment is carried out, wherein temperature rises to 200 DEG C-220 DEG C from normal temperature, heat is preserved for 6-7 hours, and the insert set is discharged from the furnace and cooled to the normal temperature. The machining method has the beneficial effects that by changing the insert structure, the manner of loading the inserts into the furnace is changed, stress relief annealing treatment is carried out before quenching, deformation can be reduced, and the rate of finished products is increased.
Description
Technical field
The present invention relates to vacuum heat field, more particularly to a kind of processing method of insert.
Background technology
Such as Fig. 1, prior art PM HSS insert overall vacuum quenching shove charge method is the single-piece horizontal pendulum of insert 1
It is placed on pallet 2, because insert wall thickness is thin, sectional dimension changes greatly, in overall vacuum quenching process, workpiece deformation is big, significantly
Increased processing cost and percent defective, it is necessary to increase following process surplus.
The content of the invention
The technical problem to be solved is：A kind of edge for reducing PM HSS insert quenching distortion is provided
Block processing method.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of processing method of insert, including such as
Lower step：
Step 1, in insert plural through hole is set, connector is placed in through-holes, two inserts are staggered relatively
And with connector connection, obtain insert group；
Step 2, step 1 gained insert group is vertically placed in pallet, then shove charge carries out stress relief annealing process：
200~220 DEG C are warmed up to from room temperature, 6~7 hours are incubated, are come out of the stove and is cooled to room temperature.
The beneficial effects of the present invention is：By changing insert structure, change the charging mode of insert and advance in quenching
Row stress relief annealing process, can reduce deformation, improve yield rate.
Description of the drawings
Fig. 1 is shove charge schematic diagram when insert of the prior art is processed.
Fig. 2 is shove charge schematic diagram when the insert of the embodiment of the present invention 1~3 is processed.
Label declaration：
1st, insert；2nd, pallet；3rd, stainless steel screw；4th, pad.
Specific embodiment
To describe the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：By changing insert structure, change the charging mode of insert and before quenching
Stress relief annealing process is carried out, deformation can be reduced, yield rate is improved.
The present invention provides a kind of processing method of insert, comprises the steps：
Step 1, in insert plural through hole is set, connector is placed in through-holes, two inserts are staggered relatively
And with connector connection, obtain insert group；
Step 2, step 1 gained insert group is vertically placed in pallet, then shove charge carries out stress relief annealing process：
200~220 DEG C are warmed up to from room temperature, 6~7 hours are incubated, are come out of the stove and is cooled to room temperature.
Further, also including step 3：Step 2 gained insert group is quenched.
Further, the through hole in step 1 is arranged at the blade of insert.
Further, step 1 also includes：Pad is placed between the connector of two inserts.
Further, step 2 also includes：High temperature resistant molybdenum sheet is padded on into insert group lower section, makes insert group steadily be positioned over support
On disk.
Further, the connector is stainless steel screw.
Seen from the above description, the beneficial effects of the present invention is：
The 1st, screw hole be set in insert, screw hole number be two and more than, because wall thickness is thin at blade, easily become
Shape, screw hole arrangement can greatly reduce edge transformations close proximity to blade；
2nd, increased stress relief annealing technique, can eliminate the internal stress of machining process generation；
3rd, using screw by two pieces insert to lock, two pieces insert is vertically placed in pallet to the insert group obtained after lock
(side of i.e. former insert is vertically placed in the pallet of horizontal positioned) rigidity is more preferably；Using stainless steel screw (because both units
Element it is different with austenitizing temperature, during high temperature rustless steel will not with PM HSS produce bond) by two pieces insert to lock,
Rigidity can be strengthened；
4th, insert side is vertically put, and is leveled up workpiece using high temperature resistant molybdenum sheet, make workpiece holding level, can be avoided
Workpiece caused by gravity because deforming during high temperature；
5th, due to being easiest to deformation at blade, at blade, the cushioning pad in the middle of two lock-screws locks screw
Clamp force produces prestressing force to insert, offsets with the shrinkage stress produced during quenching cooling, so as to further reduce deformation.
Embodiment 1
Fig. 2 is refer to, a kind of processing method of insert comprises the steps：
Step 1, at the blade of insert 1 plural through hole is set, stainless steel screw 3 is placed in through-holes, by two
Insert is staggered relatively and is connected with stainless steel screw, and pad 4 is placed between the stainless steel screw of two inserts, obtains insert group；
Step 2, step 1 gained insert group is vertically placed in pallet 2, and high temperature resistant molybdenum sheet is padded under insert group
Side, shove charge after making insert group steadily be positioned on pallet, then carries out stress relief annealing process：200 DEG C are warmed up to from room temperature, are protected
Temperature 6 hours, comes out of the stove and is cooled to room temperature；
Step 3, step 2 gained insert group is quenched.
Embodiment 2
Fig. 2 is refer to, a kind of processing method of insert comprises the steps：
Step 1, at the blade of insert 1 plural through hole is set, stainless steel screw 3 is placed in through-holes, by two
Insert is staggered relatively and is connected with stainless steel screw, and pad 4 is placed between the stainless steel screw of two inserts, obtains insert group；
Step 2, step 1 gained insert group is vertically placed in pallet 2, and high temperature resistant molybdenum sheet is padded under insert group
Side, shove charge after making insert group steadily be positioned on pallet, then carries out stress relief annealing process：220 DEG C are warmed up to from room temperature, are protected
Temperature 7 hours, comes out of the stove and is cooled to room temperature；
Step 3, step 2 gained insert group is quenched.
Embodiment 3
Fig. 2 is refer to, a kind of processing method of insert comprises the steps：
Step 1, at the blade of insert 1 plural through hole is set, stainless steel screw 3 is placed in through-holes, by two
Insert is staggered relatively and is connected with stainless steel screw, and pad 4 is placed between the stainless steel screw of two inserts, obtains insert group；
Step 2, step 1 gained insert group is vertically placed in pallet 2, and high temperature resistant molybdenum sheet is padded under insert group
Side, shove charge after making insert group steadily be positioned on pallet, then carries out stress relief annealing process：210 DEG C are warmed up to from room temperature, are protected
Temperature 6.5 hours, comes out of the stove and is cooled to room temperature；
Step 3, step 2 gained insert group is quenched.
In sum, the beneficial effect of the processing method of the insert that the present invention is provided is：
The 1st, screw hole be set in insert, screw hole number be two and more than, because wall thickness is thin at blade, easily become
Shape, screw hole arrangement can greatly reduce edge transformations close proximity to blade；
2nd, increased stress relief annealing technique, can eliminate the internal stress of machining process generation；
3rd, using screw by two pieces insert to lock, two pieces insert is vertically placed in pallet to the insert group obtained after lock
(side of i.e. former insert is vertically placed in the pallet of horizontal positioned), rigidity is more preferably；Using stainless steel screw (because both units
Element it is different with austenitizing temperature, during high temperature rustless steel will not with PM HSS produce bond) by two pieces insert to lock,
Rigidity can be strengthened；
4th, insert side is vertically put, and is leveled up workpiece using high temperature resistant molybdenum sheet, make workpiece holding level, can be avoided
Workpiece caused by gravity because deforming during high temperature；
5th, due to being easiest to deformation at blade, at blade, the cushioning pad in the middle of two lock-screws locks screw
Clamp force produces prestressing force to insert, offsets with the shrinkage stress produced during quenching cooling, so as to further reduce deformation.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
The equivalents that bright description is made, or the technical field of correlation is directly or indirectly used in, this is included in the same manner
In bright scope of patent protection.
Claims (7)
1. a kind of processing method of insert, it is characterised in that：Comprise the steps：
Step 1, in insert plural through hole is set, connector is placed in through-holes, by two inserts it is staggered relatively and with
Connector connects, and obtains insert group；
Step 2, step 1 gained insert group is vertically placed in pallet, then shove charge carries out stress relief annealing process：From normal
Temperature is warmed up to 200~220 DEG C, is incubated 6~7 hours, comes out of the stove and is cooled to room temperature.
2. the processing method of insert according to claim 1, it is characterised in that also including step 3：Step 2 gained is inlayed
Block group is quenched.
3. the processing method of insert according to claim 1, it is characterised in that：Through hole in step 1 is arranged on insert
At blade.
4. the processing method of insert according to claim 1, it is characterised in that：Step 1 also includes：In the connection of two inserts
Pad is placed between part.
5. the processing method of insert according to claim 1, it is characterised in that step 2 also includes：By high temperature resistant molybdenum sheet pad
In insert group lower section, insert group is set steadily to be positioned on pallet.
6. the processing method of insert according to claim 1, it is characterised in that：The connector is stainless steel screw.
7. the processing method of insert according to claim 1, it is characterised in that specifically include following steps：
Step 1, at the blade of insert plural through hole is set, stainless steel screw is placed in through-holes, by two insert phases
Connected to placing and with stainless steel screw, between the stainless steel screw of two inserts pad is placed, obtain insert group；
Step 2, step 1 gained insert group is vertically placed in pallet, and high temperature resistant molybdenum sheet is padded on into insert group lower section, make edge
Block group is steadily positioned on pallet rear shove charge, then carries out stress relief annealing process：200~220 DEG C are warmed up to from room temperature, insulation
6~7 hours, come out of the stove and be cooled to room temperature；
Step 3, step 2 gained insert group is quenched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022259.XA CN106676243B (en) | 2017-01-12 | 2017-01-12 | A kind of processing method of insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022259.XA CN106676243B (en) | 2017-01-12 | 2017-01-12 | A kind of processing method of insert |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106676243A true CN106676243A (en) | 2017-05-17 |
| CN106676243B CN106676243B (en) | 2018-07-20 |
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ID=58849729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710022259.XA Active CN106676243B (en) | 2017-01-12 | 2017-01-12 | A kind of processing method of insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106676243B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202366997U (en) * | 2011-12-13 | 2012-08-08 | 湖北三江航天万山特种车辆有限公司 | Irregular-part leveling device |
| 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 |
| CN104531969A (en) * | 2014-12-19 | 2015-04-22 | 芜湖金龙模具锻造有限责任公司 | Heat treatment method for reducing automobile insert deformation |
-
2017
- 2017-01-12 CN CN201710022259.XA patent/CN106676243B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202366997U (en) * | 2011-12-13 | 2012-08-08 | 湖北三江航天万山特种车辆有限公司 | Irregular-part leveling device |
| 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 |
| CN104531969A (en) * | 2014-12-19 | 2015-04-22 | 芜湖金龙模具锻造有限责任公司 | Heat treatment method for reducing automobile insert deformation |
Non-Patent Citations (2)
| Title |
|---|
| 潘宪曾: "《压铸模设计手册》", 31 August 2006 * |
| 马伯龙等: "《热处理技术图解手册》", 30 June 2015 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106676243B (en) | 2018-07-20 |
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Denomination of invention: A processing method of inlay Effective date of registration: 20200927 Granted publication date: 20180720 Pledgee: Industrial Bank Limited by Share Ltd. Sanming branch Pledgor: SHENGZHI (FUJIAN) HEAT TREATMENT Co.,Ltd. Registration number: Y2020350000113 |