CN201511113U - Low-pressure casting device - Google Patents
Low-pressure casting device Download PDFInfo
- Publication number
- CN201511113U CN201511113U CN2009201250494U CN200920125049U CN201511113U CN 201511113 U CN201511113 U CN 201511113U CN 2009201250494 U CN2009201250494 U CN 2009201250494U CN 200920125049 U CN200920125049 U CN 200920125049U CN 201511113 U CN201511113 U CN 201511113U
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- crucible
- die cavity
- molten metal
- low
- running channel
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Abstract
The utility model discloses a low-pressure casting device which comprises a die cavity (1), a pouring gate (2) and a crucible (3). The pouring gate (2) is arranged at the bottom of the die cavity (1), one end of the pouring gate (2) is disposed into the die cavity (1) and the other end of the pouring gate (2) is connected with at least one metal liquid pipe (4). The inner channel of the metal liquid pipe (4) is communicated with the inner cavity of the die cavity (1) through the inner channel of the pouring gate (2). The die cavity (1) is fixed on the crucible (3) and is sealed with the crucible (3). The end of the metal liquid pipe (4), which is far away from the pouring gate (2), is disposed into the crucible (3). An air pipeline (5) for the compressed air to get in is arranged at the upper part of the crucible (3). The low-pressure casting device can reduce the pores on the casting caused by shrinkage cavity and shrinkage porosity, and the casting made by the casting device is of good structural compactness and mechanical property.
Description
Technical field
The utility model relates to a kind of casting device that is mainly used on cylinder body, the cylinder cap, specifically is a kind of low-pressure casting apparatus.
Background technology
Do not have low-pressure casting apparatus at present on the market, and be a kind of gravitational casting device that only relies on the gravity effect, as shown in Figure 2, it comprises die cavity 101, running channel 102 and crucible, described running channel 102 is located at the top of die cavity 101, and the internal channel of die cavity 101 communicates with the passage of running channel 102; Crucible is mainly used in and holds molten metal, utilizes the gravity effect earlier by toppling over molten metal in the crucible to die cavity during use, and then the open form pickup.There is following defective in the gravitational casting device of said structure in the casting process of reality: because the water channel of above-mentioned cylinder body and the joint of cylinder cap, the shape of cylinder cap water channel and junction, combustion chamber is comparatively complicated, and wall thickness is thinner, leaks so very easily produce.And the gravitational casting device only relies on the gravity effect in casting, the part that the wall thickness of above-mentioned cylinder body and cylinder cap is thin is easy to a large amount of pores of producing owing to shrinkage cavity, shrinkage porosite, thereby make above-mentioned position very easily produce leakage, so the yield rate of above-mentioned gravity installation is low.In addition, for the thicker foundry goods of those wall thickness, the gravitational casting device of said structure is owing to only rely on gravity effect casting, thus can cause THE STRUCTURE OF CASTINGS compactness poor, poor mechanical property.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, and a kind of pore that foundry goods produces because of shrinkage cavity, shrinkage porosite and low-pressure casting apparatus that foundry goods dense structure property is good, mechanical property is good of casting of reducing is provided.
The technical solution of the utility model is, a kind of low-pressure casting apparatus is provided, and comprises die cavity, running channel and crucible, and described running channel is located at cavity bottom; One end of described running channel is inserted in die cavity, and its other end is connected with at least one molten metal pipe; The internal channel of described molten metal pipe communicates with the inner chamber of described die cavity through the internal channel of described running channel; Described die cavity is fixed on the crucible and with crucible and seals; Described molten metal pipe is inserted in crucible away from an end of running channel; The top of described crucible is provided with one and feeds the air duct that compressed air is used.
After adopting above structure, the utility model compared with prior art has the following advantages:
The utility model low-pressure casting apparatus is provided with an air duct, utilize compressed-air actuated pressure to overcome the gravity effect molten metal in the crucible is charged into moulding to the die cavity, for the water channel of cylinder body and the joint of cylinder cap, the water channel of cylinder cap and those shapes of the junction of combustion chamber are comparatively complicated, wall thickness is than unfertile land side, under the effect of compressed-air actuated pressure and gravity, can significantly reduce the pore that foundry goods produces because of shrinkage cavity, shrinkage porosite, so yield rate height of the present utility model.In addition, for the thicker foundry goods of those wall thickness, the utility model can make equally that THE STRUCTURE OF CASTINGS compactness is good, mechanical property is good by the effect of compressed air pressure and gravity.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model low-pressure casting apparatus.
Fig. 2 is the cross-sectional view of prior art gravitational casting device.
Shown in the utility model low-pressure casting apparatus figure 1, die cavity, 2, running channel, 3, crucible, 4, the molten metal pipe, 5, air duct, 6, molten metal.
Shown in the prior art gravitational casting installation drawing 101, die cavity, 102, running channel.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model low-pressure casting apparatus comprises die cavity 1, running channel 2 and crucible 3, and described running channel 2 is located at the opening part of die cavity 1 bottom; One end of described running channel 2 is inserted in die cavity 1 and is welded on the die cavity 1, and its other end is welded with at least one molten metal pipe 4; The internal channel of described molten metal pipe 4 communicates with the inner chamber of described die cavity 1 through the internal channel of described running channel 2; End away from running channel 2 of described molten metal pipe 4 is inserted in crucible 3; Described die cavity 1 usefulness bolt be connected on the crucible 3 and die cavity 1 and crucible 3 between seal by sealing ring; The top of described crucible 3 is provided with one and feeds the air duct 5 that compressed air is used.
Described molten metal pipe 4 away from an end of running channel 2 stretch in crucible 3, the bottom.
Low-pressure casting apparatus basic principle of the present utility model as shown in Figure 1, in the crucible 3 that molten metal 6 is housed, bubbling air compression set and the compressed air of the drying that produces, act on the liquid level of molten metal 6 after pressing air duct 5 to enter, molten metal 6 is entered in the die cavity 1 through running channel 2 from bottom to top along molten metal pipe 4, after treating that molten metal 6 is full of die cavity 1, increase air pressure, the molten metal 6 that die cavity is 1 li solidification forming under certain pressure, remove gas pressure on the liquid level then, make that not solidified molten metal 6 falls back in the crucible 3 open form pickup again in the molten metal pipe 4.
The molten metal pipe of inserting die cavity in the utility model can be 2,3,4 etc.; This is also in protection domain of the present utility model.
Claims (2)
1. a low-pressure casting apparatus comprises die cavity (1), running channel (2) and crucible (3), it is characterized in that: described running channel (2) is located at die cavity (1) bottom; One end of described running channel (2) is inserted in die cavity (1), and its other end is connected with at least one molten metal pipe (4); The internal channel of described molten metal pipe (4) communicates with the inner chamber of described die cavity (1) through the internal channel of described running channel (2); Described die cavity (1) is fixed on crucible (3) and goes up and seal with crucible (3); Described molten metal pipe (4) is inserted in crucible (3) away from an end of running channel (2); The top of described crucible (3) is provided with one and feeds the air duct (5) that compressed air is used.
2. low-pressure casting apparatus according to claim 1 is characterized in that: described molten metal pipe (4) away from an end of running channel (2) be located at crucible (3) in, the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201250494U CN201511113U (en) | 2009-07-17 | 2009-07-17 | Low-pressure casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201250494U CN201511113U (en) | 2009-07-17 | 2009-07-17 | Low-pressure casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511113U true CN201511113U (en) | 2010-06-23 |
Family
ID=42482511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201250494U Expired - Fee Related CN201511113U (en) | 2009-07-17 | 2009-07-17 | Low-pressure casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966574A (en) * | 2010-10-27 | 2011-02-09 | 合肥大道模具有限责任公司 | Low-pressure casting equipment for aluminum alloy circle patterns of tire mold and low-pressure casting and gravity feeding process |
| CN104889362A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Low-pressure metal casting die |
-
2009
- 2009-07-17 CN CN2009201250494U patent/CN201511113U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966574A (en) * | 2010-10-27 | 2011-02-09 | 合肥大道模具有限责任公司 | Low-pressure casting equipment for aluminum alloy circle patterns of tire mold and low-pressure casting and gravity feeding process |
| CN104889362A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Low-pressure metal casting die |
| CN104889362B (en) * | 2015-06-03 | 2017-10-10 | 天津市航宇嘉瑞科技股份有限公司 | A kind of low pressure metal casting mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |