CN206492929U - A kind of blade sintering tool in metal injection moulding technique - Google Patents
A kind of blade sintering tool in metal injection moulding technique Download PDFInfo
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- CN206492929U CN206492929U CN201621209400.4U CN201621209400U CN206492929U CN 206492929 U CN206492929 U CN 206492929U CN 201621209400 U CN201621209400 U CN 201621209400U CN 206492929 U CN206492929 U CN 206492929U
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- sintering
- tool
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- driving lever
- transmission driving
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Abstract
Tool, including transmission driving lever product are sintered the utility model discloses the blade in a kind of metal injection moulding technique, described blade sintering tool includes slim portion and thicker portion；Also include the sintering tool for putting transmission driving lever product, described sintering tool is made up of the supporting part for placing slim portion and the circular hole cavity structure for placing thicker portion bar footpath, and the upper surface of described supporting part has maximum contact surface with slim portion；Described sintering tool is positioned on a ceramic wafer, and vertical along the axis direction of circular hole die cavity.Method of the utility model by setting special sintering tool for transmission driving lever product, especially carries out setting off for large area to the slim portion for being driven driving lever product, is allowed to be unlikely to deform in sintering process.Shunk according to the pattern of tool, the stability that can easily solve problem on deformation caused by high temperature sintering, the process that can save artificial shaping, and product is good, and efficiency is improved, cost can be saved, improve productivity effect.
Description
Technical field
The utility model is related to the blade sintering in a kind of sintering auxiliary fixture, specially a kind of metal injection moulding technique
Tool, belongs to metal powder injection technical field.
Background technology
Metal injection moulding MIM (Metal injection Molding, MIM) is that one kind bonds metal dust with it
The plasticising compound of agent is injected in the manufacturing process in model.It is first to be mixed selected powder with binding agent, then will
The shape that compound is pelletized required for injection moulding again.The feature of its VISCOUS FLOW is assigned compound by polymer, and is had
Help the uniformity of shaping, mould filling and powder packing.Binding agent is excluded after shaping, then degreasing base is sintered.Have
Sintered products be also possible to carry out further densification, heat treatment or machining.Sintered products not only have and plastics
The same complicated shape of injection molding method resulting product and high accuracy, and with the physics close with forging, chemistry and machinery
Performance.The technology be adapted to produce in enormous quantities small-sized, accurate, 3D shape it is complicated and with property requirement metal
The manufacture of parts.
With constantly entering for the exploitation of deepening continuously of studying of MIM and novel binders, powder-making technique and degreasing process
Step, industrialization has been realized to the beginning of the nineties.By the effort of more than 20 years, current MIM turned into international field of powder metallurgy development
Rapidly, most promising a kind of new near-net-shape technology, be described as " international most popular metallic element forming technique " it
One.
In the technique that MIM is produced, for the complicated and relatively thin product of profile wall, sintering warpage is always one
Difficult point, is directed to such product, makes special tool in sintering, can have very great help.It is driven driving lever product general by easy
The slim portion of sintering warpage and the thicker portion composition for being difficult sintering warpage.At present in process of production, not using special
Sinter after tool, sintering, slim portion is yielding, followed by corrected by the method for artificial shaping.This mode wastes very big
Manpower, production efficiency is very low, and unstable, and the yield of finished product is low, influences productivity effect.
By way of transmission driving lever product sintering is met application fixture, difficult point in MIM techniques is overcome, driving lever is driven
Product structure determines the characteristics of its sintering is difficult to control to, not by the auxiliary of sintering tool, and product will subsequently be added by secondary
Work is completed, and post-processing process has and is difficult to ensure that in shaping and machining, such production efficiency and cost control before, product
It can be also affected in matter stability.The problem of act of this sintering of our independent researches overcomes sintering warpage well,
The process for also eliminating post-processing simultaneously.
Utility model content
The purpose of this utility model is to provide for the blade sintering tool in a kind of metal injection moulding technique, to solve
The above mentioned problem of prior art.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of blade sintering tool in metal injection moulding technique, including transmission driving lever product, described transmission driving lever
Product includes slim portion and thicker portion；Also include the sintering tool for putting transmission driving lever product, described sintering tool is by placing
The supporting part in slim portion and the circular hole cavity structure composition for placing thicker portion bar footpath, the upper surface and slim portion of described supporting part
With maximum contact surface；Described sintering tool is positioned on a ceramic wafer, and vertical along the axis direction of circular hole die cavity.
In general, supporting part has more large access area with slim portion, then slim portion's sintering warpage is fewer, but this
Meaning the slim portion of abnormity needs the supporting part of abnormity to support, and this is obviously the increase in the difficulty for making sintering tool, increases
Cost is added.Therefore the utility model is made and played a supporting role easily using the method for finding slim portion's trunk portion
Between find balance.Therefore, closer, the upper surface of described supporting part has maximum in the horizontal plane with slim portion
Contact surface.
Described circular hole cavity structure ensures that transmission driving lever product places balance, uniform force on sintering tool.
Method of the utility model by setting special sintering tool for transmission driving lever product, especially to transmission driving lever
The slim portion of product carries out setting off for large area, is allowed to be unlikely to deform in sintering process.Shunk according to the pattern of tool,
Problem on deformation caused by high temperature sintering, the process that artificial shaping can be saved, and the stabilization of product can easily be solved
Property it is good, efficiency is improved, and can save cost, improves productivity effect.
Brief description of the drawings
Fig. 1 is the structural representation of the present utility model for sintering tool；
Fig. 2 is that the utility model places the structural representation after product；
In figure：10th, transmission driving lever product 20, sintering tool 21, supporting part 22, circular hole die cavity.
Embodiment
Design feature of the present utility model is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
Blade sintering tool in a kind of metal injection moulding technique as depicted in figs. 1 and 2, including transmission driving lever product
10, described transmission driving lever product 10 includes slim portion and thicker portion；Also include the sintering tool for putting transmission driving lever product 10
20, described sintering tool 20 is by placing the supporting part 21 in slim portion and placing the structure group of circular hole die cavity 22 in thicker portion bar footpath
Into the upper surface of described supporting part 21 has maximum contact surface with slim portion；Described sintering tool 20 is positioned over a pottery
On porcelain plate, and it is vertical along the axis direction of circular hole die cavity 22.
Transmission driving lever product 10 is positioned on sintering tool 20, can be combined with smooth, driving lever product is driven
10 thicker portion bar footpath is just positioned in the circular hole die cavity 22 of sintering tool 20, product and tool is preferably contacted
Arrive, it is to avoid deformation.
In general, can significantly it be found out according to the design feature of transmission driving lever product 10, if not sintering tool
20 support, transmission driving lever product 10 is without a kind of suitable goods of furniture for display rather than for use mode, the problem of being also difficult to solve deformation of products.This reality
It can be ensured in product sintering process with new, shrink more uniform, size is more stablized.
If contact area is too big, the cost of a part on the one hand can be lost, besides contact area is big, coefficient of friction meeting
Accordingly increase, thus cause the otherness and unstability of product size.And if tool contact area is too small, tool
The weight for product of daring not accept can be held, the phenomenon for causing product to tilt and collapse.
Transmission driving lever product 10 and sintering tool 20 put it is intact after, be put into above ceramic wafer and be sintered, in order to avoid
Heat localized clusters in sintering process, cause product size uneven, to reduce the space that sintering tool 20 occupies as far as possible
With the weight of itself, such sintering tool 20 is also to be contemplated from every side on the focus of sintering optimization, passes through this tool
Application, can largely save product processing procedure control on cost.Deformation caused by high temperature sintering can be solved simultaneously
The stability of problem, the process that can save artificial shaping, and product is good, and efficiency is improved, and improves productivity effect.
Claims (1)
1. the blade sintering tool in a kind of metal injection moulding technique, including transmission driving lever product, described transmission driving lever production
Product include slim portion and thicker portion；It is characterized in that：Also include the sintering tool for putting transmission driving lever product, described sintering is controlled
Have the supporting part by placing slim portion and place the circular hole cavity structure in thicker portion bar footpath and constitute, the upper surface of described supporting part
There is maximum contact surface with slim portion；Described sintering tool is positioned on a ceramic wafer, and along the axis side of circular hole die cavity
To vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209400.4U CN206492929U (en) | 2016-11-09 | 2016-11-09 | A kind of blade sintering tool in metal injection moulding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209400.4U CN206492929U (en) | 2016-11-09 | 2016-11-09 | A kind of blade sintering tool in metal injection moulding technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206492929U true CN206492929U (en) | 2017-09-15 |
Family
ID=59800112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621209400.4U Active CN206492929U (en) | 2016-11-09 | 2016-11-09 | A kind of blade sintering tool in metal injection moulding technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206492929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842904A (en) * | 2020-07-07 | 2020-10-30 | 曲靖中铭科技有限公司 | Method capable of reducing sintering deformation of MIM product with hollow structure |
-
2016
- 2016-11-09 CN CN201621209400.4U patent/CN206492929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842904A (en) * | 2020-07-07 | 2020-10-30 | 曲靖中铭科技有限公司 | Method capable of reducing sintering deformation of MIM product with hollow structure |
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