CN109807304A - A kind of compression molding process method - Google Patents
A kind of compression molding process method Download PDFInfo
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- CN109807304A CN109807304A CN201711175646.3A CN201711175646A CN109807304A CN 109807304 A CN109807304 A CN 109807304A CN 201711175646 A CN201711175646 A CN 201711175646A CN 109807304 A CN109807304 A CN 109807304A
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Abstract
The invention discloses a kind of compression molding process methods, characterized by the following steps: molding: control mold conjunction closes to form die-casting die chamber and running channel；It is oxygenated process, industrial oxygen is filled with injection chamber using industrial oxygen cylinder；Casting of molten metal: molten metal is poured into injection chamber；Formed punch injection: control injection punch head is squeezed toward injection chamber, and the indoor molten metal of injection is filled through running channel into die-casting die chamber；Molten metal solidification: after molten metal is completely filled in die-casting die chamber, injection punch head keeps certain pressure, until molten metal cooled and solidified；Be opened pickup: after molten metal solidification, control mold is opened, and injection punch head resets, and takes out die casting.The present invention before casting of molten metal process by being additionally arranged oxygenation process, to reduce or eliminate the stomata inside die casting finished product, the hardness and mechanical performance of die casting finished product are effectively improved, and die casting finished product can be processed at high temperature, there is good heating tensile property.Effectively increase that product good mechanical property, work efficiency is high.
Description
Technical field
The invention belongs to die-casting technique field, in particular to a kind of compression molding process.
Background technique
Die casting, the i.e. abbreviation of " high pressure casting ", its essence is make in the case where high pressure acts on liquid or semi-liquid metal with compared with
The type chamber of high speed filling die casting, and form under stress and solidify and the method that obtains casting.With production efficiency
The advantages that height, casting dimension accuracy are high, and surface quality is good, most of diecasting alloys are all free from iron, for example, zinc, copper, aluminium,
Magnesium, lead, tin and terne metal and their alloy.According to the difference of die casting type, need using cold-chamber die casting machine or
Hot chamber machine.
Pressure die casting machine divides hot press chamber die casting machine and cold pressing chamber die casting machine two major classes.Cold pressing chamber die casting machine by its pressure chamber structure and
Arrangement is divided to horizontal, vertical two kinds of forms again.The clamping of hot press chamber die casting machine and cold pressing chamber die casting machine be it is the same,
Difference is that injection, casting mechanism are different.The pressure chamber of hot press chamber die casting machine and smelting furnace are closely linked to be an entirety, and cold pressing chamber
The pressure chamber of die casting machine is to separate with smelting furnace, and die-casting process is widely applied in casting field.
Be born several follow-on techniques on the basis of traditional die-casting process, including reduces casting flaw and exclude stomata
Poreless die casting technique.It is mainly used for processing zinc, it is possible to reduce the direct injection technique of waste increase yield rate
In horizontal cold room press casting procedure, after having air, molten metal to pour into type chamber and injection chamber, injection punch head is being pressed
It penetrates after molten metal enters type chamber, the existing fraction oxygen in air can react to form metal oxide with molten metal,
Remaining gas that cannot be reacted with molten metal is mixed into molten metal under the effect of the pressure, after molten metal coagulation forming, remains
Remaining gas forms stomata in cast-internal, leads to die casting finished product internal defect, and be difficult to carry out high temperature process.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, provides a kind of production method specification, good mechanical property, working efficiency
High compression molding process method.
To achieve the above object, the technical scheme is that a kind of compression molding process method, includes the following steps:
1, mold: control mold conjunction closes to form die-casting die chamber and running channel；
2, it is oxygenated process, industrial oxygen is filled with injection chamber using industrial oxygen cylinder；
3, molten metal casting of molten metal: is poured into injection chamber；
4, formed punch injection: control injection punch head is squeezed toward injection chamber, and the indoor molten metal of injection is filled through running channel to die-casting die
In chamber；
5, molten metal solidifies: after molten metal is completely filled in die-casting die chamber, injection punch head keeps certain pressure, until molten metal
Cooled and solidified；
6, be opened pickup: after molten metal solidification, control mold is opened, and injection punch head resets, and takes out die casting.
The air pressure of the inflation is 0.5MPa-2Mpa.
Industrial oxygen is filled with injection chamber by being additionally arranged oxygenation process before casting of molten metal process by the present invention,
By the gas discharge intracavitary in injection chamber and type, reduce the indoor air content of injection, to reduce or eliminate in die casting finished product
The stomata in portion effectively improves the hardness and mechanical performance of die casting finished product, and die casting finished product can be processed at high temperature, has good
Heating tensile property.Effectively increase that product good mechanical property, work efficiency is high.
Specific embodiment
Embodiment 1:
A kind of compression molding process method, includes the following steps:
1, mold: control mold conjunction closes to form die-casting die chamber and running channel；
2, it is oxygenated process, industrial oxygen is filled with injection chamber using industrial oxygen cylinder；
3, molten metal casting of molten metal: is poured into injection chamber；
4, formed punch injection: control injection punch head is squeezed toward injection chamber, and the indoor molten metal of injection is filled through running channel to die-casting die
In chamber；
5, molten metal solidifies: after molten metal is completely filled in die-casting die chamber, injection punch head keeps certain pressure, until molten metal
Cooled and solidified；
6, be opened pickup: after molten metal solidification, control mold is opened, and injection punch head resets, and takes out die casting.
The air pressure of the inflation is 0.5MPa.
Claims (2)
1. a kind of compression molding process method, characterized by the following steps:
(1) mold: control mold conjunction closes to form die-casting die chamber and running channel；
(2) it is oxygenated process: using industrial oxygen cylinder by industrial oxygen, being filled with injection chamber；
(3) molten metal casting of molten metal: is poured into injection chamber；
(4) formed punch injection: control injection punch head is squeezed toward injection chamber, and the indoor molten metal of injection is filled through running channel to die-casting die
In chamber；
(5) molten metal solidifies: after molten metal is completely filled in die-casting die chamber, injection punch head keeps certain pressure, until metal
Liquid cooled and solidified；
(6) be opened pickup: after molten metal solidification, control mold is opened, and injection punch head resets, and takes out die casting.
2. a kind of compression molding process method according to claim 1, it is characterised in that: the air pressure of the inflation is
0.5MPa-2Mpa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175646.3A CN109807304A (en) | 2017-11-22 | 2017-11-22 | A kind of compression molding process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175646.3A CN109807304A (en) | 2017-11-22 | 2017-11-22 | A kind of compression molding process method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109807304A true CN109807304A (en) | 2019-05-28 |
Family
ID=66599833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711175646.3A Pending CN109807304A (en) | 2017-11-22 | 2017-11-22 | A kind of compression molding process method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109807304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227812A (en) * | 2019-07-25 | 2019-09-13 | 重庆力劲机械有限公司 | A kind of novel pressure casting apparatus and its filling method |
| CN113000811A (en) * | 2021-02-06 | 2021-06-22 | 苏州麦奇诺精密压铸有限公司 | Die-casting forming process for cavity of filter |
-
2017
- 2017-11-22 CN CN201711175646.3A patent/CN109807304A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227812A (en) * | 2019-07-25 | 2019-09-13 | 重庆力劲机械有限公司 | A kind of novel pressure casting apparatus and its filling method |
| CN113000811A (en) * | 2021-02-06 | 2021-06-22 | 苏州麦奇诺精密压铸有限公司 | Die-casting forming process for cavity of filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |