CN105108100A - Metal die casting technology - Google Patents
Metal die casting technology Download PDFInfo
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- CN105108100A CN105108100A CN201510558529.XA CN201510558529A CN105108100A CN 105108100 A CN105108100 A CN 105108100A CN 201510558529 A CN201510558529 A CN 201510558529A CN 105108100 A CN105108100 A CN 105108100A
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Abstract
The invention provides a metal die casting technology. According to the technology, the external wall of a hot chamber is provided with a material injection opening. A pneumatic duct is inclined towards the opposite direction of the material injection opening. The pneumatic pore canal is successively connected to anair guide pipe, a one-way valve, a solenoid and an industrial oxygen tank. The solenoid is turned on byPLC control after die assembly. Oxygen is pumped in from the hot chamber by the industrial oxygen tank, and enters a cavity via a runner and is finally discharged out of a die casting machine body. The area of a portion where an air inlet hole and the air outlet hole are communicated is arranged to be smaller than the area of the top portion of the air inlet hole. The air inlet hole is arranged to be inclined towards the opposite direction of the material injection opening. The air charging time is 7-8 seconds and the air charging air pressure stays at 1.6 Mpa to 2.0 Mpa. The metal die casting technology of the invention reduces the air content inside the hot chamber so as to reduce or eliminate air pores inside a die casting finished product, which effectively increases the stiffness and mechanical performance ofdie casting finished products.
Description
Technical field
The present invention relates to a kind of die cast metal technique, belong to field of mechanical technique.
Background technology
Die casting, the i.e. abbreviation of " compression casting ", its essence is under High Pressure, to make liquid state or semi-liquid metal fill the die cavity of die casting with higher speed, and shaping and solidify and obtain the method for foundry goods under stress.Die casting machine divides hot press chamber die casting machine and the large class of cold pressing chamber die casting machine two.Cold pressing chamber die casting machine divides again horizontal, vertical two kinds of forms by its pressure chamber structure and arrangement.Hot press chamber die casting machine is the same with the clamping of cold pressing chamber die casting machine, and its difference is injection, casting mechanism difference.The pressure chamber of hot press chamber die casting machine and smelting furnace are closely linked to be an entirety, and the pressure chamber of cold pressing chamber die casting machine and smelting furnace are what to separate.Extrusion process is in casting field extensive use.
And in horizontal cold room press casting procedure, before molten metal pours into injection chamber, owing to all having air in die cavity and injection chamber, after molten metal pours into, injection punch head is in injection molten metal process, the fraction oxygen of the existence in air to react formation metal oxide with molten metal, all the other gases that can not react with molten metal are mixed into molten metal under the effect of the pressure, when after molten metal coagulation forming, remaining gas will form pore at cast-internal, make die casting finished product internal defect, hardness is low, bad mechanical property, and be not suitable for processing as welding under high-temperature and adding hot-stretch.
Summary of the invention
The invention provides a kind of die cast metal technique, the above defect can be overcome.
For solving above technical problem, the invention provides following technical scheme: a kind of die cast metal technique, comprise the steps: matched moulds, oxygenation, casting metal, drift injection, molten metal solidifies, die sinking pickup, injection chamber outer wall is provided with pouring slot, inflation duct is set in the front of described pouring slot, described inflation duct tilts toward the direction that pouring slot is relative, described inflation duct is sequentially connected with wireway, check valve, magnetic valve, industrial oxygen cylinder, opened by PLC Controlling solenoid valve after matched moulds, oxygen is filled with from injection chamber by industrial oxygen cylinder, enter die cavity through running channel and finally discharge die casting body, be arranged to described area of inflating hole and air admission hole connectivity part to inflate described in being less than the area at top, hole, and the direction be arranged to by described air admission hole toward described pouring slot is relative tilts, inflationtime is 7-8 second, and the air pressure of inflation is 1.6MPa-2.0Mpa.
Further, described oxygenation operation, carries out drying process to industrial oxygen before oxygenation.
Further, described described inflation duct is set to inflate hole and air admission hole, wherein described hole of inflating is arranged on the upside of injection chamber outer wall, described air admission hole is arranged on the downside of injection chamber outer wall, and be communicated with inflating the bottom in hole with the top of air admission hole.
Further, the described angle of air admission hole inclination and the angle of horizontal plane are 30-60 degree.
This die cast metal technique that the present invention relates to, by having set up oxygenation operation before casting of molten metal operation, injection chamber is filled with by industrial oxygen, gas in injection chamber and die cavity is discharged, decrease the air content in injection chamber, thus reduce or eliminate the pore of die casting finished product inside, effectively improve hardness and the mechanical performance of die casting finished product, and die casting finished product can at high temperature be processed, there is good heating tensile property.
Detailed description of the invention
A kind of die cast metal technique, comprise the steps: matched moulds, oxygenation, casting metal, drift injection, molten metal solidifies, die sinking pickup, injection chamber outer wall is provided with pouring slot, inflation duct is set in the front of described pouring slot, described inflation duct tilts toward the direction that pouring slot is relative, described inflation duct is sequentially connected with wireway, check valve, magnetic valve, industrial oxygen cylinder, opened by PLC Controlling solenoid valve after matched moulds, oxygen is filled with from injection chamber by industrial oxygen cylinder, enter die cavity through running channel and finally discharge die casting body, be arranged to described area of inflating hole and air admission hole connectivity part to inflate described in being less than the area at top, hole, and the direction be arranged to by described air admission hole toward described pouring slot is relative tilts, inflationtime is 7-8 second, and the air pressure of inflation is 1.6MPa-2.0Mpa.
Described oxygenation operation, carries out drying process to industrial oxygen before oxygenation.
Described described inflation duct is set to inflate hole and air admission hole, wherein described hole of inflating is arranged on the upside of injection chamber outer wall, described air admission hole is arranged on the downside of injection chamber outer wall, and be communicated with inflating the bottom in hole with the top of air admission hole.
The angle of the angle that described air admission hole tilts and horizontal plane is 30-60 degree.
This die cast metal technique that the present invention relates to, by having set up oxygenation operation before casting of molten metal operation, injection chamber is filled with by industrial oxygen, gas in injection chamber and die cavity is discharged, decrease the air content in injection chamber, thus reduce or eliminate the pore of die casting finished product inside, effectively improve hardness and the mechanical performance of die casting finished product, and die casting finished product can at high temperature be processed, there is good heating tensile property.This
Detailed description of the invention of the present invention does not form the restriction to the application's scope; within every spirit in the present invention's design and principle, any amendment that one of skill in the art can make, equivalent to replace and improvement etc. all should be included within protection scope of the present invention.
Claims (4)
1. a die cast metal technique, comprise the steps: matched moulds, oxygenation, casting metal, drift injection, molten metal solidifies, die sinking pickup, injection chamber outer wall is provided with pouring slot, inflation duct is set in the front of described pouring slot, described inflation duct tilts toward the direction that pouring slot is relative, described inflation duct is sequentially connected with wireway, check valve, magnetic valve, industrial oxygen cylinder, opened by PLC Controlling solenoid valve after matched moulds, oxygen is filled with from injection chamber by industrial oxygen cylinder, enter die cavity through running channel and finally discharge die casting body, be arranged to described area of inflating hole and air admission hole connectivity part to inflate described in being less than the area at top, hole, and the direction be arranged to by described air admission hole toward described pouring slot is relative tilts, inflationtime is 7-8 second, and the air pressure of inflation is 1.6MPa-2.0Mpa.
2. die cast metal technique according to claim 1, is characterized in that, described oxygenation operation, before oxygenation, carry out drying process to industrial oxygen.
3. die cast metal technique according to claim 1, it is characterized in that, described described inflation duct is set to inflate hole and air admission hole, wherein described hole of inflating is arranged on the upside of injection chamber outer wall, described air admission hole is arranged on the downside of injection chamber outer wall, and is communicated with inflating the bottom in hole with the top of air admission hole.
4. die cast metal technique according to claim 1, is characterized in that, the angle of the angle that described air admission hole tilts and horizontal plane is 30-60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558529.XA CN105108100A (en) | 2015-09-06 | 2015-09-06 | Metal die casting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558529.XA CN105108100A (en) | 2015-09-06 | 2015-09-06 | Metal die casting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105108100A true CN105108100A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558529.XA Pending CN105108100A (en) | 2015-09-06 | 2015-09-06 | Metal die casting technology |
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| CN (1) | CN105108100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855497A (en) * | 2016-05-12 | 2016-08-17 | 安徽纯启动力机械有限公司 | Alloy die-casting process |
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| CN203936348U (en) * | 2014-06-04 | 2014-11-12 | 宁波中桥精密机械有限公司 | Anti-roll gas aluminium alloy cold-chamber die casting machine |
| CN104275464A (en) * | 2014-09-16 | 2015-01-14 | 苏州橙石铸造有限公司 | Material injection device of die casting machine |
| CN204108282U (en) * | 2014-09-28 | 2015-01-21 | 常州市盛伟压铸机制造有限公司 | A kind of full-vertical cold-chamber die casting machine feeding mechanism |
| CN204220964U (en) * | 2014-09-16 | 2015-03-25 | 苏州橙石铸造有限公司 | A kind of horizontal type cold-chamber die casting feeding system |
| CN104550826A (en) * | 2015-01-07 | 2015-04-29 | 陈贵有 | Die-casting technique of horizontal cold chamber die casting machine |
| CN204413090U (en) * | 2015-01-07 | 2015-06-24 | 陈贵有 | Horizontal type cold-chamber die casting injection chamber modified node method |
-
2015
- 2015-09-06 CN CN201510558529.XA patent/CN105108100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203936348U (en) * | 2014-06-04 | 2014-11-12 | 宁波中桥精密机械有限公司 | Anti-roll gas aluminium alloy cold-chamber die casting machine |
| CN104275464A (en) * | 2014-09-16 | 2015-01-14 | 苏州橙石铸造有限公司 | Material injection device of die casting machine |
| CN204220964U (en) * | 2014-09-16 | 2015-03-25 | 苏州橙石铸造有限公司 | A kind of horizontal type cold-chamber die casting feeding system |
| CN204108282U (en) * | 2014-09-28 | 2015-01-21 | 常州市盛伟压铸机制造有限公司 | A kind of full-vertical cold-chamber die casting machine feeding mechanism |
| CN104550826A (en) * | 2015-01-07 | 2015-04-29 | 陈贵有 | Die-casting technique of horizontal cold chamber die casting machine |
| CN204413090U (en) * | 2015-01-07 | 2015-06-24 | 陈贵有 | Horizontal type cold-chamber die casting injection chamber modified node method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855497A (en) * | 2016-05-12 | 2016-08-17 | 安徽纯启动力机械有限公司 | Alloy die-casting process |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |