Vertical aluminium alloy vacuum pressurizing casting cabin with double gates

Abstract

The invention relates to a vertical aluminium alloy vacuum pressurizing casting cabin with double gates. The vertical aluminium alloy vacuum pressurizing casting cabin comprises a location base, a vacuum pressurizing casting chamber, an airtight door, a location table, support legs, a pressure regulation pump set and a casting drive mechanism, wherein the outer surface of the bottom of the vacuum pressurizing casting chamber is connected with the support legs; a material port is arranged in the top of the vacuum casting chamber; the airtight door is abutted against the material port of the vacuum casting chamber; a connection table is arranged on the inner side surface of the upper part of the vacuum casting chamber, and the vacuum casting chamber is connected with the casting drive mechanism through the connection table; the location table is installed at the bottom in the vacuum casting chamber; the vacuum casting chamber is additionally provided with at least two gas guide ports, and communicates with the pressure regulation pump set through the gas guide ports; and the casting drive mechanism comprises a location frame, a casting ladle, a casting groove and a drive mechanism. On one hand, the vertical aluminium alloy vacuum pressurizing casting cabin disclosed by the invention is capable of effectively meeting the need of carrying out aluminium alloy casting moulding operation under a negative pressure environment; and on the other hand, the vertical aluminium alloy vacuum pressurizing casting cabin disclosed by the invention is capable of effectively guaranteeing the coaxiality of castings, and overcoming the disadvantages of low quality of the casting products and high rejection rate due to the lowering of the temperature and the flowability of an aluminium alloy melt.

Description

technical field [0001] The invention relates to a vertical double-gate aluminum alloy vacuum pressurized casting cabin, which belongs to the technical field of casting equipment. Background technique [0002] At present, in order to improve the processing quality of castings, negative pressure casting equipment is used for castings, especially when casting aluminum alloy workpieces with thin walls, complex structures and large volume and length. For the processing of such aluminum alloy products, the use of negative pressure casting equipment can effectively improve the product quality and production efficiency of casting operations for some thin-walled, complex-structured and large-volume aluminum alloy workpieces, but in actual use It is also found that when the negative pressure casting equipment currently used is performing casting operations, on the one hand, because the current casting equipment is of a horizontal structure, it is necessary to place the castings parall...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to improve the processing quality of castings, negative pressure casting equipment is used for castings, especially when casting aluminum alloy workpieces with thin walls, complex structures and large volume and length. For the processing of such aluminum alloy products, the use of negative pressure casting equipment can effectively improve the product quality and production efficiency of casting operations for some thin-walled, complex-structured and large-volume aluminum alloy workpieces, but in actual use It is also found that when the negative pressure casting equipment currently used is performing casting operations, on the one hand, because the current casting equipment is of a horizontal structure, it is necessary to place the castings parallel to the horizontal plane for casting, so it is very easy to cause the casting structure to be under support. Under the interaction of force and gravity, the outlet line partially sags, which leads to the decrease of the coaxiality of the casting product and seriously affects the processing quality of the casting. On the other hand, the current casting equipment can only cast the mold through one pouring point, so in When casting some large workpieces, due to the large volume of the workpiece, the complex and small structure of the mold cavity, and the fact that the mold of the casting workpiece is parallel to the horizontal plane, it is easy to cause poor fluidity of the aluminum alloy melt in the mold and cause As a result, the efficiency of the casting operation is low, and the casting operation time is long, and the temperature of the aluminum alloy melt drops significantly due to the prolongation of the casting time, which further seriously affects the fluidity of the aluminum alloy melt, and eventually causes aluminum alloy The alloy melt in the mold cannot effectively reach the first molding cavity inside the mold, resulting in low quality castings, and even scrapping the castings in serious cases. Therefore, the current negative pressure casting equipment can easily cause low quality castings in actual use. The disadvantage of high scrap rate, in view of this situation, there is an urgent need to develop an inventive negative pressure casting molding equipment to overcome the shortcomings in current use and meet the needs of actual use

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