CN205851878U - A kind of device being stranded gas for solving metal powder injection - Google Patents
A kind of device being stranded gas for solving metal powder injection Download PDFInfo
- Publication number
- CN205851878U CN205851878U CN201620731118.6U CN201620731118U CN205851878U CN 205851878 U CN205851878 U CN 205851878U CN 201620731118 U CN201620731118 U CN 201620731118U CN 205851878 U CN205851878 U CN 205851878U
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- metal powder
- redundancy structure
- powder injection
- gas
- stranded
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Abstract
This utility model relates to a kind of device being stranded gas for solving metal powder injection, by the flow process of metal dust, including sprue, the sub-runner being connected with sprue, the cast gate being connected with sub-runner, the formed product chamber being connected with cast gate, have hole slot in a face of formed product room, hole slot is externally connected with a redundancy structure chamber, and redundancy structure is arranged below thimble.This utility model can eliminate the problems such as the tired gas in metal powder injection, weld mark, pore.
Description
Technical field
This utility model relates to metal powder injection, is specifically related to a kind of dress being stranded gas for solving metal powder injection
Put.
Background technology
Small volume and baroque parts, the degree that becomes more meticulous making requires higher, uses casting, forging in the past
Make, cold extrusion and car, milling machining process make, and fabrication and processing operation is loaded down with trivial details, complex process (up to 300 multiple working procedure),
Cannot large-scale production, metal material utilization rate is low, and properties of product are general, and product is low for service life, and homogeneity of product is difficult
To ensure.At present, begin with people and study employing metal injection moulding method these volumes are little and baroque parts to produce,
Metal Injection Molding (Metal Powder Injection Molding is called for short MIM) is modern plastics to be sprayed
The Novel powder metallurgy n ear-net shaping technique that forming technique introduces field of powder metallurgy and formed.Its basic craft course
Be: first by pressed powder and the uniform kneading of organic binder bond, after pelletizing under heating plasticizing state (150 DEG C) with being injected into
Shape machine injects solidified forming in die cavity, then will shape the binding agent removing in base by the method for chemistry or thermal decomposition, after warp
Sintering densification obtains final products.Compared with traditional handicraft, metal powder injection molding has that precision is high, concordance is good, knot
The features such as structure is uniform, excellent performance, are market application foreground extraordinary parts forming techniques.But in metal injection process
In be easy to produce tired gas, if the type intracavity gas of being trapped in can not be discharged in time, be easily caused and surface blistering occur, inside product
Gas enclosure, the phenomenons such as mold filling is discontented.
Utility model content
The purpose of this utility model is to provide a kind of novel device being stranded gas for solving metal powder injection, can eliminate
The internal gas enclosure of product, it is to avoid molding chamber is stranded gas, improves surface smoothness and the properties of product of product.
Solution of the present utility model is achieved in that a kind of device being stranded gas for solving metal powder injection,
By metal flow of powder direction, including sprue, sub-runner connects sprue, and cast gate connects sub-runner, and the connection of molding chamber is watered
Mouthful, molding chamber is also associated with redundancy structure chamber.
Another technical scheme of the present utility model is on above-mentioned basis, and described redundancy structure chamber is that cross section is
The block of triangle.
Another technical scheme of the present utility model is on above-mentioned basis, and described redundancy structure chamber is that cross section is
Trapezoidal block.
Another technical scheme of the present utility model is on above-mentioned basis, and described redundancy structure chamber is that cross section is
Oval block.
Another technical scheme of the present utility model is on above-mentioned basis, and described redundancy structure chamber is arranged further below
There is movable thimble.Movable thimble can eject redundancy structure, increases redundancy structure chamber vent ability.
Another technical scheme of the present utility model is on above-mentioned basis, described movable thimble one end and redundancy structure
Chamber connects, and the movable thimble other end is fixed on mould, it is possible to withstand in top mold plate.
This utility model by connecting by the way of redundancy structure chamber at molding chamber, simple in construction, easy and simple to handle, can show
Write and reduce in production feeding performance and equipment performance requirement, and product quality, good product consistency, stability can be obviously improved
High.And effectively eliminate product and be stranded gas, weld mark and pore etc..In subsequent treatment, by redundancy structure formed on product
Excise.And prior art is in order to eliminate tired gas, it is necessary to the air drain that begins to rehearse in position could solve, and does not has clear and definite
Technology relies on, and can only do while grope to adjust, take time and effort, adjust frequently.And after this utility model arranges redundancy structure chamber,
The not requirement of cross-notching position, can choose at random slotting position, can solve tired gas problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, this utility model is described in further detail.
This utility model embodiment is as follows, and a kind of device being stranded gas for solving metal powder injection, by metal dust stream
Dynamic direction, including sprue 1, sub-runner 2 connects sprue 1, and cast gate 3 connects sub-runner 2, and molding chamber 4 connects cast gate 3,
Redundancy structure chamber 5 it is also associated with on molding chamber 4.(there are opening and molding chamber to be directly connected on redundancy structure chamber,
I.e. redundancy structure chamber and formed product chamber connects into a through chamber, and interface type can design according to practical situation
(such as may be designed to gate type), facilitates the later stage to remove), the redundancy structure chamber 5 of the present embodiment is trapezoidal for cross section
Block.Described redundancy structure chamber 5 is provided with movable thimble 6 further below.Movable thimble 6 one end is with redundancy structure chamber 5 even
Connecing, during use, the movable thimble other end withstands in top mold plate.Redundancy structure chamber by welding or can be bolted to into
On die cavity room, it is also possible to one-body molded with molding chamber.The tired gas making shaping chamber produce is leaked out by redundancy structure chamber
Come, reach to eliminate the purpose of tired gas.Also movable thimble can not be set, the direct and product demoulding in the lump under redundancy structure chamber.
Injection defect is transferred to redundancy structure chamber from product or directly eliminates by the acting as of redundancy structure chamber.?
Exhaust structure can be the most also offered around product and redundancy structure chamber.The ultimate principle of its effect is will to enter product
Forward's material is transferred on redundancy structure, it is ensured that inject feeding on finished product full uniformly.
As an alternative solution, described redundancy structure chamber 5 alternatively cross section is the block of triangle, it is also possible to for transversal
Face is oval block.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (6)
1. it is used for solving metal powder injection and is stranded a device for gas, it is characterized in that, by metal flow of powder direction, including main flow
Road (1), sub-runner (2) connects sprue (1), and cast gate (3) connects sub-runner (2), and molding chamber (4) connects cast gate (3), is becoming
Redundancy structure chamber (5) it is also associated with on die cavity room (4).
It is used for solving metal powder injection the most according to claim 1 and is stranded the device of gas, it is characterized in that, described redundancy structure chamber
Room (5) be cross section be the block of triangle.
It is used for solving metal powder injection the most according to claim 1 and is stranded the device of gas, it is characterized in that, described redundancy structure chamber
Room (5) be cross section be trapezoidal block.
It is used for solving metal powder injection the most according to claim 1 and is stranded the device of gas, it is characterized in that, described redundancy structure chamber
Room (5) be cross section be oval block.
5. it is stranded the device of gas according to described in any claim in Claims 1-4 for solving metal powder injection, its feature
It is that described redundancy structure chamber (5) is provided with movable thimble (6) further below.
It is used for solving metal powder injection the most according to claim 5 and is stranded the device of gas, it is characterized in that, described movable thimble
(6) one end is connected with redundancy structure chamber (5), and the movable thimble other end withstands in top mold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620731118.6U CN205851878U (en) | 2016-07-10 | 2016-07-10 | A kind of device being stranded gas for solving metal powder injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620731118.6U CN205851878U (en) | 2016-07-10 | 2016-07-10 | A kind of device being stranded gas for solving metal powder injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205851878U true CN205851878U (en) | 2017-01-04 |
Family
ID=57646647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620731118.6U Active CN205851878U (en) | 2016-07-10 | 2016-07-10 | A kind of device being stranded gas for solving metal powder injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205851878U (en) |
-
2016
- 2016-07-10 CN CN201620731118.6U patent/CN205851878U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 321001 Zhejiang Province, Jinhua city Wucheng District Youth Industrial Zone Patentee after: Zhejiang fire Polytron Technologies Inc Address before: 321001 Zhejiang Province, Jinhua city Wucheng District Youth Industrial Zone Patentee before: Zhejiang Yihuo Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |