Accelerator cap structure based on reducing rejection rate

Abstract

The invention provides an accelerator cap structure based on reducing the rejection rate. The promoter cap structure comprises an accelerator cap, a casting head, a bottom mold, cooling copper rods, cooling iron, a bottom flange, side molds and side flanges; a casting mold of the accelerator cap is composed of two groups of side molds and a group of bottom mold; the side molds are positioned on the left sides and the right sides above the bottom mold. According to the accelerator cap structure, the feeding capacity can be effectively improved, the occurrence of shrinkage porosity and shrinkagecan be reduced, the casting quality can be improved, hole shrinkage of the matching surface can be effectively avoided, and the product quality and the yield are improved; and meanwhile, the positionof the casting head is easy to polish and clean, the processing allowance of the matching surface is uniform, and the processing speed and quality of the subsequent machining are improved.

Description

technical field [0001] The invention belongs to the technical field of casting, and more specifically relates to a accelerator cap structure based on reducing the scrap rate. Background technique [0002] In the production of the accelerator cap, casting is generally used for production, and in the casting of the accelerator cap, the casting riser is generally arranged on the lower surface of the accelerator cap. [0003] Based on the above, in the existing booster cap casting, the casting riser is located at the bottom surface, close to the mating surface, and shrinkage cavities are likely to occur at the mating surface during the casting process, resulting in unqualified air tightness of the parts and leakage accidents in assembly. The small feeding capacity of the bottom casting riser is limited, and the margin at the casting riser is uneven, so it is necessary to avoid a large amount of empty tool time during machining, which affects the machining efficiency. [0004] T...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a booster cap structure based on reducing the scrap rate, so as to solve the problem that in the existing booster cap casting, the casting riser is located at the bottom surface, close to the mating surface, and it is easy to get stuck on the mating surface during the casting process. Shrinkage cavities are generated at the parts, resulting in unqualified air tightness of parts and leakage accidents in assembly. At the same time, the small feeding capacity of the casting riser on the bottom surface is limited. At the same time, the allowance at the casting riser is uneven, which needs to be avoided during machining. A large amount of empty tool time affects the machining efficiency

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