KR101212328B1 - Die casting device and die casting method - Google Patents
Die casting device and die casting method Download PDFInfo
- Publication number
- KR101212328B1 KR101212328B1 KR1020100021788A KR20100021788A KR101212328B1 KR 101212328 B1 KR101212328 B1 KR 101212328B1 KR 1020100021788 A KR1020100021788 A KR 1020100021788A KR 20100021788 A KR20100021788 A KR 20100021788A KR 101212328 B1 KR101212328 B1 KR 101212328B1
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- South Korea
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- molten metal
- metal material
- mold
- sleeve
- flanger
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Abstract
The present invention provides a molten metal tank for storing molten metal material, a mold for molding a product shape using the molten metal material, and a dosing tube extending from the molten metal tank for supplying molten metal material stored in the melting tank; A sleeve extending from the dosing tube to introduce the molten material supplied from the dosing tube into the mold, the sleeve having a first portion through which the molten metal material is transferred in a molten state, and the molten metal material in a reaction state A second portion to be transferred to; A first electromagnetic stirring part installed around the second part to electromagnetically stir the molten metal material in the reaction solid state; A flanger installed in the sleeve for vertically conveying the molten metal material into the mold; And a flanger driver for driving the flanger at a first speed when the flanger moves to the first portion, and driving the flanger at a second speed slower than the first speed when moving at the second portion. doing
Description
The present invention relates to a die casting apparatus and a die casting method, and more particularly, to a die casting apparatus and a die casting method using a molten metal in a reaction state capable of producing a casting of good quality.
The type of manufacturing apparatus by the die casting casting method is classified into two types, a low temperature chamber die casting apparatus and a high temperature chamber die casting apparatus, according to a method of transferring molten metal dissolved by a melting tank to a mold.
In general, a low temperature chamber die casting method is manufactured by transferring molten metal dissolved by a dissolution tank to a plunger in a pressurized chamber in a form exposed to the atmosphere and injecting molten metal into a mold. The production of the product by the device of low temperature chamber die casting is exposed to the atmosphere, so that the molten metal is transferred to the pressurizing chamber. Due to this, it is difficult to manufacture high quality products.
To compensate for this disadvantage, a high temperature chamber diecasting method is applied. In the high temperature chamber die casting method, a molten metal pressurized by a decompression device is pressed into a mold through a nozzle without exposing the molten metal dissolved by a melting tank to the atmosphere. It is pressurized at and is supplied to the sleeve and pressed back into the mold cavity of the mold. This manufacturing method has an advantage that the bubble defect of the product is less than the product produced by the low temperature chamber die casting apparatus because the molten metal is not exposed to the atmosphere and pressed into the mold. As described above, the method for manufacturing a product by a high temperature chamber die casting apparatus is particularly effective when manufacturing a product of a material which is rapidly oxidized in the air such as magnesium because it can be hermetically cast without being exposed to the air.
The present invention is directed to providing a die casting apparatus and a die casting method for forming a casting of better quality in casting molten metal in a solid state.
In order to solve the above-mentioned problems, a die casting apparatus including a melting tank for storing a molten metal material and a mold for molding a casting using the molten metal material, which is an embodiment of the present invention, is melted stored in the melting tank A dosing tube extending from the dissolution tank to supply metal material; A sleeve extending from the dosing tube to introduce the molten material supplied from the dosing tube into the mold, the sleeve having a first portion through which the molten metal material is transferred in a molten state, and the molten metal material in a reaction state A dosing tube extending at a position 51-80% away from the mold with respect to the entire length of the sleeve; A first electromagnetic stirring part installed around the second part to electromagnetically stir the molten metal material in the reaction solid state; And a flanger installed in the sleeve to vertically convey the molten metal material into the fin.
According to one embodiment of the present invention, the molten metal material may be one of aluminum, magnesium, aluminum magnesium alloy.
According to an aspect of an embodiment of the present invention, the first electromagnetic stirring portion may be installed in at least one of the inside of the mold and around the sleeve.
According to an aspect of an embodiment of the present invention, the die casting apparatus drives the flanger at a first speed when the flanger moves to the first portion, and when the die caster moves at the second portion, The apparatus may further include a flanger driver configured to drive the flanger at a second slow speed.
According to an aspect of an embodiment of the present invention, the die casting apparatus further includes a second electromagnetic stirring portion of the dosing tube, installed before the sleeve after the dissolution tank, and configured to electromagnetically stir the returned molten metal material. can do.
Another embodiment of the present invention provides a die casting method comprising the steps of: providing a molten metal material to a dissolution tank; supplying the molten metal material to a dosing pipe using a decompression device; Introducing the molten metal material supplied from the dosing tube at a first speed into the first portion of the sleeve; Introducing a molten metal material introduced into the sleeve through a flanger into a second portion at a second speed, the second speed being slower than the first speed; Cooling the molten metal material to a solid state in the second portion; Electromagnetically stirring the molten metal material in the solidified state through a first electromagnetic stirring unit; And introducing a molten metal material of the electromagnetically stirred reaction solid state into a mold.
According to an aspect of another embodiment of the present invention, the molten metal material may be one of aluminum, magnesium, aluminum magnesium alloy.
According to an aspect of another embodiment of the present invention, the first electromagnetic stirring portion may be installed in at least one of the inside of the mold and around the sleeve.
According to an aspect of another embodiment of the present invention, the dosing tube may be extended with respect to the sleeve at a position 51-80% away from the mold with respect to the entire length of the sleeve.
According to one aspect of another embodiment of the present invention, the die casting method is provided to electromagnetically stir the molten metal material of the dosing pipe, which is installed before the sleeve after the dissolution tank and returned to the dissolution tank by a second electromagnetic stirring unit. It may further comprise a step.
According to one embodiment of the present invention having the above-described configuration, the molten metal is moved at a relatively high speed to suppress cooling of the molten metal in the first portion of the sleeve, and the electromagnetic portion for a longer time in the second portion of the sleeve. By moving the molten metal at a relatively slow speed in order to cause the stirring action to occur, the cast structure of the final casting (extract) can be made finer, thereby producing a casting of excellent strength.
In particular, in the case of magnesium, aluminum, or magnesium aluminum alloy, the productivity can be increased while reducing the defect rate.
In addition, according to one embodiment of the present invention, by installing the first electromagnetic stirring portion in the mold and around the sleeve, it is possible to improve the ease of installation of the die casting apparatus.
In addition, by installing the dosing pipe 51-80% away from the mold with respect to the overall length of the sleeve, it is possible to cause the electromagnetic stirring action for the molten metal material in the reaction state without a separate temperature control means.
In addition, according to an embodiment of the present invention, the dosing pipe is inclined with respect to the sleeve, and by installing a second electromagnetic stirring unit in the dosing pipe, it is possible to increase the efficiency of the molten metal material to return to the dissolution tank.
1 is an overall schematic view of a die casting apparatus according to an embodiment of the present invention.
2 is a flowchart for explaining a die casting method according to another embodiment of the present invention.
3A to 3E are schematic views of a die casting apparatus for specifically explaining a die casting method which is another embodiment of the present invention.
Hereinafter, a die casting apparatus and a die casting method according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.
1 is an overall schematic diagram of a die casting apparatus according to an embodiment of the present invention. As shown in Figure 1, the
As shown, the
The
The
The first
The second
The
The
Hereinafter, a die casting method using the die casting apparatus having the above-described configuration will be described in detail with reference to FIG. 2.
2 is a flowchart illustrating a die casting method according to another embodiment of the present invention.
As shown, the
A die casting method according to another embodiment of the present invention described above will be described in more detail with reference to FIG. 3.
3A to 3E are schematic views of a die casting apparatus for explaining in detail a die casting method according to another embodiment of the present invention.
Figure 3a shows the molten metal material flowing into the dosing tube, Figure 3b shows the molten metal material passes through the first portion of the sleeve, Figure 3c shows the molten metal material to the second portion of the sleeve 3D is a view showing a state in which molten metal material has flowed into a hollow part in a mold, and FIG. 3E is a view showing a state in which castings are taken out.
As shown in FIG. 3A, the
The die-casting apparatus and the die-casting method described above are not limited to the configuration and method of the embodiments described above, but the embodiments may be a combination of all or part of the embodiments selectively so that various modifications may be made. It may be configured.
10: dissolution tank
11: molten metal
20: mold
21: upper mold
22: lower mold
23: extract (cast)
30: dosing pipe
40: machine sleeve
41: first part
45: mold sleeve
46: second part
51: first electromagnetic stirring unit
52: second electromagnetic stirring unit
60: flanger
70: flanger drive unit
Claims (10)
A die casting apparatus comprising a mold for molding a casting,
Extending from a dosing tube installed to introduce the molten metal material supplied from the dissolution tank into the mold, and for guiding the molten metal material in the molten state at a first portion where the molten metal material is transferred from the dissolution tank to the molten state; A sleeve comprising a machine sleeve and a mold sleeve for guiding the molten metal material in a second portion in which the molten metal material is transferred in a semi-melt state;
A dosing tube extending from the dissolution tank at a position 51-80% away from the mold with respect to the entire length of the machine sleeve to supply the molten metal material stored in the dissolution tank;
A first electromagnetic stirring part disposed around the second part and installed in at least one of the inside of the mold and the periphery of the mold sleeve to electromagnetically stir the molten metal material in a reaction state;
A second electromagnetic stirring part disposed around the dosing tube and preventing solidification of the molten metal material when a part of the molten metal material guided through the dosing tube to the machine sleeve is returned to the dissolution tank; And
And a flanger installed in the sleeve for vertically conveying the molten metal material guided into the sleeve to the mold.
And a flanger driver for driving the flanger at a first speed when the flanger moves to the first portion and driving the flanger at a second speed slower than the first speed when moving at the second portion. Die casting apparatus.
Priority Applications (1)
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KR1020100021788A KR101212328B1 (en) | 2010-03-11 | 2010-03-11 | Die casting device and die casting method |
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KR1020100021788A KR101212328B1 (en) | 2010-03-11 | 2010-03-11 | Die casting device and die casting method |
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KR20110102661A KR20110102661A (en) | 2011-09-19 |
KR101212328B1 true KR101212328B1 (en) | 2012-12-13 |
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KR1020100021788A KR101212328B1 (en) | 2010-03-11 | 2010-03-11 | Die casting device and die casting method |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104525799B (en) * | 2014-12-26 | 2016-05-25 | 西安交通大学 | The semisolid manufacturing process of the radial-axial rolling strain-induced method of large ring |
CN108247002A (en) * | 2018-03-26 | 2018-07-06 | 东莞帕姆蒂昊宇液态金属有限公司 | A kind of semisolid vertical die-casting machine |
KR102121979B1 (en) | 2018-10-24 | 2020-06-12 | 주식회사 퓨쳐캐스트 | A die casting device comprising a movable electromagnetic control coil module |
WO2020085775A1 (en) * | 2018-10-24 | 2020-04-30 | 주식회사 퓨쳐캐스트 | Die casting apparatus provided with movable electromagnetically controlled structure control module |
KR102440267B1 (en) * | 2021-01-04 | 2022-09-06 | 한주금속(주) | Two-segment electromagnet reaction reactor diecasting apparatus and diecasting method using the same |
CN114939642A (en) * | 2022-06-06 | 2022-08-26 | 深圳市北工实业有限公司 | Vertical forming machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1119759A (en) | 1997-06-30 | 1999-01-26 | Hitachi Metals Ltd | Casting method for die casting and apparatus thereof |
JP2000158118A (en) | 1998-11-25 | 2000-06-13 | Ritter Aluminium Giesserei Gmbh | Thixotrapic alloy casting die casting manufacturing method and device |
-
2010
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1119759A (en) | 1997-06-30 | 1999-01-26 | Hitachi Metals Ltd | Casting method for die casting and apparatus thereof |
JP2000158118A (en) | 1998-11-25 | 2000-06-13 | Ritter Aluminium Giesserei Gmbh | Thixotrapic alloy casting die casting manufacturing method and device |
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KR20110102661A (en) | 2011-09-19 |
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