CN201446213U - Apparatus for lost foam casting - Google Patents
Apparatus for lost foam casting Download PDFInfo
- Publication number
- CN201446213U CN201446213U CN2009200482920U CN200920048292U CN201446213U CN 201446213 U CN201446213 U CN 201446213U CN 2009200482920 U CN2009200482920 U CN 2009200482920U CN 200920048292 U CN200920048292 U CN 200920048292U CN 201446213 U CN201446213 U CN 201446213U
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- port
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Abstract
The utility model relates to the casting field, especially relates to an apparatus for casting non-ferrous metal lost foam poured by a pipe suction method, the utility model has a negative pressure sand tank, a mold arranged in the negative pressure sand tank and a vacuum extractor communicated to the negative pressure sand tank, an adsorbing and pouring apparatus for circulating the pouring solution is connected on the negative pressure sand tank, the absorbing and pouring apparatus comprises a liquid transmission port communicated with a pouring port on the negative pressure sand tank and a liquid adsorbing port buried in a pouring solution of a pouring ladle, the absorbing and pouring apparatus comprises a pipeline with one end connected with the pouring port of the negative pressure sand tank and the other end buried into the pouring solution, and a switch device arranged on the pipeline, the switch device is an air isolation board, the air isolation board is fixed on a pipeline port of the liquid adsorbing port, the vacuum extractor comprises a purified gas tank connected with the negative pressure sand tank by pipe fittings, a negative pressure tank communicated with the purified gas tank, a vacuum pump communicated with the negative pressure tank and a water pool communicated with the vacuum pump. The utility model can prevent the metal melting solution oxidation to enable the surface of the finished product casting part to be smooth without air holes, and can improve the mechanical property of the casting part.
Description
Technical field
The utility model relates to casting technology field, especially a kind of device that passes through the nonferrous metal lost foam casting of pipeline inhalation cast.
Background technology
Lost foam casting is that paraffin similar to the casting dimension shape or bubbles model bonding are combined into model cluster, after brushing fireproof coating and oven dry, be embedded in vibration molding in the dried quartz sand, under negative pressure, pour into a mould, make the model gasification, liquid metals occupies modal position, solidifies the novel casting method that the cooling back forms foundry goods.
At present, what the lost foam casting non-ferrous metal used is to utilize cup to pour into a mould, there are many defectives in the coloured cup structure of existing lost foam casting, cup and casting ladle need keep certain space distance and certain poring rate during cast, liquation contacts can cause with air with air in this distance and contacts, make the liquation oxidation, and operating personnel can not accurately hold the speed of cast and the degree of accuracy of cast.Also because can not accurately the holding of cast distance and speed, make that molten metal can not be cup " shutting " fully, the cast subnormal ambient suffers to destroy to be infiltrated air and makes the liquation oxidation, influences the mechanical performance of foundry goods.
The utility model content
The technical problems to be solved in the utility model is: shortcoming and deficiency in order to solve above-mentioned existence, a kind of device that is used for lost foam casting is provided, and in the foundry goods that has prevented to cause pore is arranged owing to the cast entrained air, improved the performance of foundry goods.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of device that is used for lost foam casting, has negative-pressure flask, place the mould and the vacuum extractor that is communicated to negative-pressure flask of negative-pressure flask, be connected with the suction device of circulation potting syrup on the negative-pressure flask, the suction device comprises the infusion port that is communicated with sprue gate on the negative-pressure flask and imbeds liquid sucting port in the potting syrup of casting ladle, before carrying out, cast now integral body is vacuumized, pour into a mould then, because the suction device directly is communicated with potting syrup, can not contact when making cast, improve the performance of foundry goods with air.
Further, for make the suction device simple in structure, realize that the circulation of potting syrup, suction device comprise that an end connects negative-pressure flask sprue gate and the other end and imbeds the pipeline in the potting syrup and be arranged on switching device on the pipeline easily.
For simplified structure, cast properties is provided, switching device is the air baffler, the air baffler is fixed on the pipe end at liquid sucting port place.
In order to prevent the easy oxidation of solution, the square plate of air baffler for making with the potting syrup same material, when the air baffler stretched in the potting syrup, because the air baffler the during high temperature of potting syrup melts, dissolving the back potting syrup can pour into a mould by flow ipe.
For potting syrup circulation control easily, the check valve that switching device flows to the negative-pressure flask sprue gate for the control potting syrup.
For the protection of environment, the easy formation of foundry goods, vacuum extractor comprises the Purge gas jar that is connected by pipe fitting with negative-pressure flask, the negative-pressure cup that is communicated with the Purge gas jar, the vavuum pump that is communicated with negative-pressure cup and the pond that is communicated with vavuum pump.
The device busy that is used for lost foam casting is under the subnormal ambient, because negative-pressure flask has certain relative permeability, so the inside of the suction device that is communicated with negative-pressure flask is negative pressure, switching device is opened, negative pressure in the pipeline sucks liquation, make potting syrup flow into the mould place, mould is heated and melts evaporation, finishes the cast requirement.
The beneficial effects of the utility model are, the device that is used for lost foam casting of the present utility model can be reused the reduction consumables cost, has prevented molten metal from being oxidized, promotes casting quality, make the smooth surface of finished product cast not have pore, improve the mechanical performance of foundry goods.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of Fig. 1 partial structurtes negative-pressure flask cast.
Among the figure 1, negative-pressure flask, 2, mould, 3, the suction device, 3-1, pipeline, 3-2, air baffler, 4-1, Purge gas jar, 4-2, negative-pressure cup, 4-3, vavuum pump, 4-4, pond.
The specific embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The device that is used for lost foam casting of preferred forms as shown in Figure 1 and Figure 2, have negative-pressure flask 1, place the mould 2 of negative-pressure flask 1 and be communicated to the vacuum extractor of negative-pressure flask 1, be connected with the suction device 3 of circulation potting syrup on the negative-pressure flask 1, suction device 3 comprises the infusion port that is communicated with sprue gate on the negative-pressure flask 1 and imbeds liquid sucting port in the potting syrup of casting ladle.
Suction device 3 comprises that an end connects negative-pressure flask 1 sprue gate and the other end and imbeds the pipeline 3-1 in the potting syrup and be arranged on switching device on the pipeline 3-1.Switching device is air baffler 3-2, and air baffler 3-2 is fixed on the pipeline 3-1 port at liquid sucting port place.Air baffler 3-2 is the square plate made from the potting syrup same material.Vacuum extractor comprises Purge gas jar 4-1, the negative-pressure cup 4-2 that is communicated with Purge gas jar 4-1, vavuum pump 4-3 that is communicated with negative-pressure cup 4-2 that is connected by pipe fitting with negative-pressure flask 1 and the pond 4-4 that is communicated with vavuum pump 4-3.
The utility model is put into negative-pressure flask 1 with mould 2 earlier; sand is tamped; then pipeline 3-1 one end of suction device 3 is linked to each other with running gate system in the negative-pressure flask 1; the fixedly shutoff of air baffler 3-2 of making of the other end of pipeline 3-1 with the potting syrup same material; make the pipeline 3-1 and the external world be separated by; by vacuum extractor negative-pressure flask 1 and suction device 3 integral body are vacuumized then; owing to have pore on the madial wall of the interior case of sandbox; make that gas flows out from the pore on the inner box side face when vacuumizing; make the sand in the case can not flow out and be attached with grid on the madial wall of interior case from pore; the pipeline 3-1 mouth that will be fixed with dividing plate one end is then imbedded in the potting syrup; because the high temperature of potting syrup makes dividing plate melt; then potting syrup is because the effect of negative pressure; flow into mould 2 die cavities of negative-pressure flask 1 by pipeline 3-1; because the high temp effect of potting syrup; make mould 2 melt and evaporate; at this moment the vavuum pump 4-3 by vacuum extractor sucks Purge gas jar 4-1 with vaporized gas and carries out pernicious gas and evolve; gas then enters negative-pressure cup 4-2 by Purge gas jar 4-1; be discharged in the water in the 4-4 of pond by vavuum pump 4-3; the cast of foundry goods is finished in the harm of having protected pernicious gas to enter air.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (6)
1. device that is used for lost foam casting, have negative-pressure flask (1), place the mould (2) of negative-pressure flask (1) and be communicated to the vacuum extractor of negative-pressure flask (1), it is characterized in that: be connected with the suction device (3) of circulation potting syrup on the negative-pressure flask (1), suction device (3) comprises the infusion port that is communicated with sprue gate on the negative-pressure flask (1) and imbeds liquid sucting port in the potting syrup of casting ladle.
2. the device that is used for lost foam casting according to claim 1 is characterized in that: described suction device (3) comprises that an end connects negative-pressure flask (1) sprue gate and the other end and imbeds the pipeline (3-1) in the potting syrup and be arranged on switching device on the pipeline (3-1).
3. the device that is used for lost foam casting according to claim 2 is characterized in that: described switching device is air baffler (3-2), and air baffler (3-2) is fixed on the pipe end at liquid sucting port place.
4. the device that is used for lost foam casting according to claim 3 is characterized in that: described air baffler (3-2) is the square plate made from the potting syrup same material.
5. the device that is used for lost foam casting according to claim 2 is characterized in that: the check valve that described switching device flows to the negative-pressure flask sprue gate for the control potting syrup.
6. the device that is used for lost foam casting according to claim 1 is characterized in that: described vacuum extractor comprises the Purge gas jar (4-1) that is connected by pipe fitting with negative-pressure flask (1), the negative-pressure cup (4-2) that is communicated with Purge gas jar (4-1), the vavuum pump (4-3) that is communicated with negative-pressure cup (4-2) and the pond (4-4) that is communicated with vavuum pump (4-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200482920U CN201446213U (en) | 2009-09-03 | 2009-09-03 | Apparatus for lost foam casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200482920U CN201446213U (en) | 2009-09-03 | 2009-09-03 | Apparatus for lost foam casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201446213U true CN201446213U (en) | 2010-05-05 |
Family
ID=42550923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200482920U Expired - Fee Related CN201446213U (en) | 2009-09-03 | 2009-09-03 | Apparatus for lost foam casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201446213U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341592A (en) * | 2013-07-03 | 2013-10-09 | 黄山泰鑫耐磨材料有限公司 | Laminating sand mould vacuum-assist pouring method and system |
| CN106378417A (en) * | 2016-11-10 | 2017-02-08 | 扬州市瑞晟机械铸造有限公司 | Lost foam casting method |
| CN106563774A (en) * | 2016-11-10 | 2017-04-19 | 扬州市瑞晟机械铸造有限公司 | Lost foam casting device |
| CN116984595A (en) * | 2023-07-28 | 2023-11-03 | 河北瑞欧智能装备有限公司 | Negative pressure system of casting pouring line |
-
2009
- 2009-09-03 CN CN2009200482920U patent/CN201446213U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341592A (en) * | 2013-07-03 | 2013-10-09 | 黄山泰鑫耐磨材料有限公司 | Laminating sand mould vacuum-assist pouring method and system |
| CN106378417A (en) * | 2016-11-10 | 2017-02-08 | 扬州市瑞晟机械铸造有限公司 | Lost foam casting method |
| CN106563774A (en) * | 2016-11-10 | 2017-04-19 | 扬州市瑞晟机械铸造有限公司 | Lost foam casting device |
| CN106563774B (en) * | 2016-11-10 | 2018-09-18 | 扬州市瑞晟机械铸造有限公司 | A kind of lost foam casting device |
| CN116984595A (en) * | 2023-07-28 | 2023-11-03 | 河北瑞欧智能装备有限公司 | Negative pressure system of casting pouring line |
| CN116984595B (en) * | 2023-07-28 | 2024-03-12 | 河北瑞欧智能装备有限公司 | Negative pressure system of casting pouring line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20120903 |