CN105170936A - Aluminium alloy metal piece vacuum pressing technology - Google Patents
Aluminium alloy metal piece vacuum pressing technology Download PDFInfo
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- CN105170936A CN105170936A CN201510558506.9A CN201510558506A CN105170936A CN 105170936 A CN105170936 A CN 105170936A CN 201510558506 A CN201510558506 A CN 201510558506A CN 105170936 A CN105170936 A CN 105170936A
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- molten metal
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Abstract
The invention provides an aluminium alloy metal piece vacuum pressing technology which comprises the following steps controlled by a PLC: a, assembling a die: controlling the die to be assembled, and vacuumizing the inner cavity of the die; b, pouring molten metal: pouring the molten metal into an injection chamber, wherein a vacuum nozzle on the die is adopted for pouring to isolate oxygen inlet; C, adopting a punch for injection: controlling an injection punch to extrude towards the injection chamber, and filling the molten metal in the injection chamber in a die-casting cavity via a pouring gate; d, solidifying the molten metal: after filling the molten metal in the die-casting cavity via completely, enabling the injection punch to keep certain pressure until the molten metal cools and solidifies; e, opening the die and taking the die casting out: after the molten metal solidifies, controlling the die to open, resetting the injection punch, and taking the die casting out. The aluminium alloy metal piece vacuum pressing technology is reasonable and stable in technology; the die-casting forming quality and the surface quality are excellent, and the yield is high.
Description
Technical field
The present invention relates to a kind of Al-alloy metal part vacuum pressing 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 Al-alloy metal part vacuum pressing technique, the above defect can be overcome.
For solving above technical problem, the invention provides following technical scheme: a kind of Al-alloy metal part vacuum pressing technique, comprising the following steps adopting PLC to control:
A. matched moulds: control mould conjunction and close, dies cavity is evacuated;
B. casting of molten metal: molten metal is poured into injection chamber, cast adopts the vacuum nozzle on mould to enter in order to starvation;
C. drift injection: control injection punch head and extrude toward injection chamber, the molten metal in injection chamber is filled in die casting die cavity through running channel;
D. molten metal solidifies: after molten metal is filled in die casting die cavity completely, and injection punch head keeps certain pressure, until molten metal cooled and solidified;
E. die sinking pickup: after molten metal solidifies, control mould and open, injection punch head resets, and takes out die casting.
This Al-alloy metal part vacuum pressing technique that the present invention relates to, rational technology, stable, casting forming quality and surface quality good, yield rate is high.
Detailed description of the invention
A kind of Al-alloy metal part vacuum pressing technique, comprises the following steps adopting PLC to control:
A. matched moulds: control mould conjunction and close, dies cavity is evacuated;
B. casting of molten metal: molten metal is poured into injection chamber, cast adopts the vacuum nozzle on mould to enter in order to starvation;
C. drift injection: control injection punch head and extrude toward injection chamber, the molten metal in injection chamber is filled in die casting die cavity through running channel;
D. molten metal solidifies: after molten metal is filled in die casting die cavity completely, and injection punch head keeps certain pressure, until molten metal cooled and solidified;
E. die sinking pickup: after molten metal solidifies, control mould and open, injection punch head resets, and takes out die casting.
This Al-alloy metal part vacuum pressing technique that the present invention relates to, rational technology, stable, casting forming quality and surface quality good, yield rate is high.
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 (1)
1. an Al-alloy metal part vacuum pressing technique, is characterized in that, comprises the following steps adopting PLC to control:
A. matched moulds: control mould conjunction and close, dies cavity is evacuated;
B. casting of molten metal: molten metal is poured into injection chamber, cast adopts the vacuum nozzle on mould to enter in order to starvation;
C. drift injection: control injection punch head and extrude toward injection chamber, the molten metal in injection chamber is filled in die casting die cavity through running channel;
D. molten metal solidifies: after molten metal is filled in die casting die cavity completely, and injection punch head keeps certain pressure, until molten metal cooled and solidified;
E. die sinking pickup: after molten metal solidifies, control mould and open, injection punch head resets, and takes out die casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558506.9A CN105170936A (en) | 2015-09-06 | 2015-09-06 | Aluminium alloy metal piece vacuum pressing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558506.9A CN105170936A (en) | 2015-09-06 | 2015-09-06 | Aluminium alloy metal piece vacuum pressing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105170936A true CN105170936A (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558506.9A Pending CN105170936A (en) | 2015-09-06 | 2015-09-06 | Aluminium alloy metal piece vacuum pressing technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN105170936A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0966351A (en) * | 1995-08-31 | 1997-03-11 | Olympus Optical Co Ltd | Vacuum die casting method |
| CN1276275A (en) * | 1999-06-03 | 2000-12-13 | 三井金属矿业株式会社 | Magnesium alloy pressure die casting method and articles |
| CN1449315A (en) * | 2000-08-25 | 2003-10-15 | 联邦科学和工业研究组织 | Aluminium pressure casting |
| JP2010179331A (en) * | 2009-02-04 | 2010-08-19 | Kochi Univ Of Technology | Die casting device and die casting method |
| CN103990775A (en) * | 2014-06-06 | 2014-08-20 | 支前明 | Metal extruding, casting and forging forming method and products of method |
| CN104550826A (en) * | 2015-01-07 | 2015-04-29 | 陈贵有 | Die-casting technique of horizontal cold chamber die casting machine |
-
2015
- 2015-09-06 CN CN201510558506.9A patent/CN105170936A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0966351A (en) * | 1995-08-31 | 1997-03-11 | Olympus Optical Co Ltd | Vacuum die casting method |
| CN1276275A (en) * | 1999-06-03 | 2000-12-13 | 三井金属矿业株式会社 | Magnesium alloy pressure die casting method and articles |
| CN1449315A (en) * | 2000-08-25 | 2003-10-15 | 联邦科学和工业研究组织 | Aluminium pressure casting |
| JP2010179331A (en) * | 2009-02-04 | 2010-08-19 | Kochi Univ Of Technology | Die casting device and die casting method |
| CN103990775A (en) * | 2014-06-06 | 2014-08-20 | 支前明 | Metal extruding, casting and forging forming method and products of method |
| CN104550826A (en) * | 2015-01-07 | 2015-04-29 | 陈贵有 | Die-casting technique of horizontal cold chamber die casting machine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |
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| RJ01 | Rejection of invention patent application after publication |