Filter base casting process

Abstract

The invention belongs to the technical field of casting, and particularly relates to a filter base casting process. The filter base casting process comprises the following steps that (1) a parting surface is determined according to the structure and the appearance of a filter base, a die is designed, a cavity for forming a process feeding rib is additionally arranged on a lower die, and the manufacturing of an upper die and the lower die is finished; the process feeding rib is arranged between the thin-wall waist drums on the two sides of the filter base; (2) the upper die and the lower die are closed horizontally; (3) after die closing is completed, the die is turned over by 90 degrees, so that a base of the filter base is located at the lowermost part of a whole cavity; (4) molten aluminum is poured in the overturning process; (5) after the filter base is formed, the upper die and the lower die are opened, and the formed filter base is taken out and inspected; and (6) the process feeding rib formed on the filter base is removed to obtain a required filter base finished product. The defects of shrinkage porosity and shrinkage cavity and the cold shut defect of a thin wall are overcome at a time in the casting process of a casting, the ideal casting forming effect is achieved, time is saved, and operation is easy and convenient.

Description

technical field [0001] The invention relates to a filter base casting process, which belongs to the technical field of casting. Background technique [0002] The filter base belongs to box parts. This kind of parts has the characteristics of complex shape and structure, large volume, many cavities and holes, etc., and has good mechanical properties, casting properties and mechanical properties, so in the production process First arrange the casting process to generate the initial blank shape of the part, and then process it through machine tools such as turning, milling and drilling. The thick and large part of the filter base casting is also the largest plane section of the casting. During the metal solidification process, shrinkage porosity, shrinkage cavity, and pore defects are prone to occur (such as shrinkage cavity position 5 in 2). The thin-walled part of the filter base casting is easy to feed insufficiently and form a cold shut defect when the molten metal solidif...

AI Technical Summary

Problems solved by technology

Several manufacturers are unable to solve this problem, therefore, hereby apply for a filter base casting process to solve the above problems

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