High pressure water cooling method and device applied to low pressure casting technology

Abstract

The invention relates to a high pressure water cooling method and a high pressure water cooling device applied to low pressure casting technology. The method comprises the following steps of: fixedly arranging the high pressure water cooling device which mainly comprises a top die water cooling tray and a bottom die cooling tray in a wheel hub casting mould, particularly on parts inside a top die and a bottom die of the casting mould corresponding to PCD parts of a wheel hub, and introducing high pressure cooling water in both the top die water cooling tray and the bottom die water cooling tray during the casting so as to fulfill the aim of quickly cooling a cast. The device mainly comprises the top die water cooling tray and the bottom die cooling tray which are fixedly arranged at the parts inside the top die and the bottom die of the casting mould corresponding to the PCD parts of the wheel hub. The high pressure water cooling method of the invention has the advantages of reducing the using amount of a casting material while the mechanical performance of the wheel hub is improved, effectively prolonging the service life of the casting mould and reducing the production cost, along with high cooling speed, high cooling efficiency, energy conservation and environmental protection; and meanwhile, the high pressure water cooling device has the advantages of simple structure, easy manufacturing and convenient assembling and maintenance and can be widely applied to the casting technology of automobile aluminum alloy wheel hubs or other metal casts.

Description

technical field [0001] The invention relates to a cooling method and equipment in the low-pressure casting process, in particular to a high-pressure water cooling method and device applied in the low-pressure casting process. Background technique [0002] With the rapid development of the automobile industry, the structural form of the wheel hub is changing with each passing day, which puts forward higher and higher requirements for the performance and manufacture of the wheel hub. Because low-pressure casting technology has advantages far beyond traditional casting technology in terms of process operability, product performance, and cost, it has become the current development trend of wheel hub manufacturing. [0003] In the existing aluminum alloy wheel hub low-pressure casting process, an air cooling system is generally used in the casting mold mainly composed of the upper mold 1' and the lower mold 2' for time-controlled cooling, such as figure 1 As shown, the air cooli...

AI Technical Summary

Problems solved by technology

The existing air-cooling method has slow cooling speed, poor cooling effect, and huge energy consumption, which can easily lead to excessive local temperature of the wheel hub, and the rim surface of the wheel hub is seriously molded, which not only affects the qualified rate of the product, but also increases the quality of the product. The workload of subsequent processing is reduced, and the production efficiency is low, which will seriously reduce the service life of the casting mold and greatly increase the production cost of the manufacturer.

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