KR101144036B1 - Molten metal stopper apparatus having improved heat isolation - Google Patents
Molten metal stopper apparatus having improved heat isolation Download PDFInfo
- Publication number
- KR101144036B1 KR101144036B1 KR1020100066053A KR20100066053A KR101144036B1 KR 101144036 B1 KR101144036 B1 KR 101144036B1 KR 1020100066053 A KR1020100066053 A KR 1020100066053A KR 20100066053 A KR20100066053 A KR 20100066053A KR 101144036 B1 KR101144036 B1 KR 101144036B1
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- South Korea
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- molten metal
- heater
- stopper
- cover
- outer cover
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Abstract
The present invention relates to a molten metal stopper device of an automatic molten metal supplying system, the molten metal stopper device having an improved heater cover configured to double insulation shielding around the stopper and the molten metal, the electric heater in the heater device for preventing solidification of the molten metal It is about. In the present invention, by adopting a double cover structure in which the inner cover is spaced inside the outer cover so that the air insulation layer is formed, the heat insulating performance of the heater device can be maximized, thereby preventing the solidification phenomenon of the molten metal can be effectively prevented. . In addition, it is possible to extend the life of the heater by reducing the full load operation of the heater, and to secure the durability of the equipment and to manage the low temperature of the molten metal by eliminating the insulation problem in the current installation space, thereby reducing energy consumption, casting cost and cost There are several advantages, such as ease of material quality control.
Description
The present invention relates to a molten metal stopper device, and more particularly, to a molten metal stopper device for selectively blocking the supply of molten metal in an automatic molten metal supplying system for supplying a molten material for casting, such as an aluminum alloy, to a mold of a low pressure casting machine. It is about.
In general, the low pressure casting method is a technique of slowly injecting molten metal melted at a lower pressure from the lower part of the mold to coagulate. The low pressure casting method is capable of producing precise castings with less mixing defects and incorporation of foreign substances such as oxides. It is widely used for the manufacture of heavy cylinder blocks, cylinder heads, wheels and the like.
The low pressure casting method is also used in copper alloys, cast iron and the like, but is mainly used for casting aluminum alloys. In particular, it is widely used for casting cylinder heads for automobile engines to aluminum alloys.
In the low pressure casting machine used for low pressure casting, the aluminum alloy molten metal is filled into the mold to cast parts. At this time, the automatic melting system for manufacturing the aluminum alloy molten metal is automatically transported and supplied and then injected into the mold of the low pressure casting machine. It is becoming.
1 and 2 are cross-sectional views showing the configuration of the automatic melt supplying system, in particular showing the operating state of the melt stopper device.
As shown, the automatic molten
The
In addition, the low
In addition, the
Here, the
In addition, the
The
As a result, when the molten metal produced in the
Subsequently, air pressurization is started into the
Referring to the operation of the
Subsequently, when the control device outputs a control signal for stopping the stopper from the signal of the molten metal level sensor (not shown) in the
As described above, when the
Subsequently, the
On the other hand, Figure 3 is a view for explaining the problem of the molten metal stopper device according to the prior art, it is a view showing a state in which the
As shown in the figure, a
However, the conventional molten
For this reason, the heat insulation layer of the
Therefore, the heat loss emitted to the outside through the
In particular, when continuous melt circulation is not performed when the line is not in operation, such as a holiday, the melt solidifies, which causes a problem in the line operation, and the
Therefore, the present invention has been invented to solve the above problems, the heat insulation performance of the heater device for heating the stopper surroundings to prevent the molten metal around the stopper and the molten metal inlet in the automatic molten metal supply system can be maximized It is an object of the present invention to provide a molten metal stopper device that can effectively prevent the occurrence of problems caused by solidification of the molten metal around the stopper by improving the insulation performance of the heater device.
In order to achieve the above object, the present invention, the stopper for selectively opening and closing the molten metal inlet of the molten metal supply pipe connected to the heat induction furnace, the actuator for operating the stopper, and is arranged to surround the stopper surrounding the solidification of the molten metal In the molten metal stopper device including a heater device for preventing the heater, the heater cover is installed to surround the heater of the heater device to shield the heat of the heater to the inner cover and the inner cover spaced apart inside the outer cover; It is configured to provide a molten metal stopper device having improved heat insulating performance, characterized in that an air insulation layer is formed between the outer cover and the inner cover.
In a preferred embodiment, the outer cover and the inner cover may be assembled by fastening them up and down, and the nut is fastened to the end of the bolt, the inner cover is preferably made of a heat insulating material.
Accordingly, according to the molten metal stopper device according to the present invention, by installing a separate inner cover for forming an air insulation layer inside the existing heater cover (outer cover) forming the outer structure of the heater device, the outer cover and the inner Air insulation layer between the cover is configured to maximize the heat insulation performance of the heater device, thereby expanding the appearance of the heater device, that is, sufficient heat insulation of the heater device without regard to the size of the electric heater or the heater cover, or the resulting space constraints It is possible to secure the performance, thereby effectively preventing the solidification of the molten metal.
In addition, it is possible to reduce the full load operation of the heater, thereby extending the life of the heater, and to solve the problem of heat insulation in the current installation space, to secure the durability of the equipment and to manage the low temperature of the molten metal, thereby reducing energy consumption, casting cost, and cost. There are several advantages, such as savings and ease of material quality control.
1 and 2 are cross-sectional views showing the configuration of the automatic melt supplying system, in particular showing the operating state of the molten stopper device.
3 is a view for explaining the problem of the molten metal stopper device according to the prior art, it is a view showing the installation state of the heater built in the molten stopper device.
4A and 4B are sectional views showing the configuration of the molten metal stopper device according to the present invention, showing the structure of the improved heater device.
Figure 5 is a perspective view of the assembled state showing the heater apparatus of the molten stopper apparatus according to the present invention.
Figure 6 is a bottom perspective view of the assembled state showing the heater device of the molten stopper device according to the present invention.
7 and 8 are exploded perspective views of the heater device shown in Figs. 5 to 6, Figure 7 is a top perspective view of the disassembled state, Figure 8 is a bottom perspective view of the disassembled state.
9 is a cutaway perspective view of the heater device illustrated in FIGS. 5 to 6.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.
4a and 4b are cross-sectional views showing the configuration of the molten metal stopper device according to the present invention, showing the structure of the improved heater device, Figure 4a is an open state of the stopper, Figure 4b is shown in a closed state of the stopper It is a cross section.
As shown, the molten
In addition, as the actuator, the
In addition, there is no difference in the opening and closing operation of the
Looking at the structure of the heater cover, a separate inner cover for forming the
In particular, in the
Figure 5 is a plan perspective view of the assembled state showing the heater apparatus of the molten stopper device according to the present invention, Figure 6 is a bottom perspective view of the assembled state.
7 and 8 are exploded perspective views of the heater device shown in Figs. 5 to 6, Figure 7 is a top perspective view of the disassembled state, Figure 8 is a bottom perspective view of the disassembled state.
9 is a cutaway perspective view of the heater device shown in FIGS.
First, the heater device of the
The heater cover of each of the sub-heater device (145a, 145b) is made of a heat insulating material is installed to seal the space around the
At this time, each heater cover is composed of an
Therefore, the heat insulation performance of the entire heater cover is improved by the
The
The
As shown, the
In addition, the
In this way, in the molten
As a result, sufficient heat insulation performance of the heater device can be ensured without expanding the appearance of the heater device, that is, the size of the heater cover or the electric heater, and the life of the heater can be extended, and solidification of the molten metal can be effectively prevented. .
In addition, by eliminating the problem of heat insulation in the current installation space, it is possible to secure the durability of the equipment and to manage the low temperature of the molten metal, thereby reducing the energy consumption, casting cost and cost reduction, easy material quality management.
Although the embodiment employing a single inner cover in the molten metal stopper device of the present invention has been described above, a plurality of inner covers may be installed in the outer cover to be spaced apart from each other. Since the heat insulation layer is formed, it is possible to maximize the heat insulation performance.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Modified forms are also included within the scope of the present invention.
100: automatic melting system 110: melting furnace
120: molten metal supply line 121: molten metal inlet
130: degassing device 140: molten stopper device
141: stopper 142: stopper lifting cylinder
143: stopper lock cylinder 145: heater device
146: outer cover 147: inner cover
148: air insulation layer 149: heater
149a:
200: low pressure casting machine 210: mold
Claims (3)
An inner cover disposed to surround the heater 149 of the heater device 145 and spaced apart from the outer cover 146 and the outer cover 146 to shield the heat of the heater 149. The molten metal stopper device having improved heat insulating performance, characterized in that the air insulating layer 148 is formed between the outer cover 146 and the inner cover 147.
The outer cover 146 and the inner cover 147 are assembled by fastening them with bolts 149a penetrating them up and down, and nuts 149b fastened to the ends of the bolts 149a. Improved melt stopper device.
The inner cover 147 is a molten metal stopper device to improve the thermal insulation performance, characterized in that made of a heat insulating material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020100066053A KR101144036B1 (en) | 2010-07-08 | 2010-07-08 | Molten metal stopper apparatus having improved heat isolation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100066053A KR101144036B1 (en) | 2010-07-08 | 2010-07-08 | Molten metal stopper apparatus having improved heat isolation |
Publications (2)
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KR20120005351A KR20120005351A (en) | 2012-01-16 |
KR101144036B1 true KR101144036B1 (en) | 2012-05-23 |
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KR1020100066053A KR101144036B1 (en) | 2010-07-08 | 2010-07-08 | Molten metal stopper apparatus having improved heat isolation |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102194906B1 (en) * | 2020-10-29 | 2020-12-24 | 유정오 | Opening/closing device of molten aluminum inlet having multi-angle shaft and single one body nozzle block |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06262329A (en) * | 1993-03-15 | 1994-09-20 | Ube Ind Ltd | Trough type molten metal supplying device |
KR200396541Y1 (en) | 2005-07-11 | 2005-09-22 | 주식회사 희택 | Nozzle stopper with heat interception sleeve |
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2010
- 2010-07-08 KR KR1020100066053A patent/KR101144036B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06262329A (en) * | 1993-03-15 | 1994-09-20 | Ube Ind Ltd | Trough type molten metal supplying device |
KR200396541Y1 (en) | 2005-07-11 | 2005-09-22 | 주식회사 희택 | Nozzle stopper with heat interception sleeve |
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KR20120005351A (en) | 2012-01-16 |
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