Polishing-free pouring system for one-mold four-piece sand casting of bearing sleeve

Abstract

The invention discloses a polishing-free pouring system for one-mold four-piece sand casting of a bearing sleeve, and relates to the technical field of pouring. The polishing-free pouring system comprises the following steps: carrying out mold manufacturing, specifically, manufacturing a mold, forming a pouring gate in the upper side of the mold, and sequentially forming a transverse groove set, a vertical groove set, four hot risers and four casting grooves in the mold; carrying out smelting, specifically, selecting appropriate metal materials for mixed smelting, wherein the smelting temperature is 1500-1600 DEG C; carrying out pouring, specifically, aligning molten iron with the pouring gate of the mold for slow pouring; carrying out demolding, specifically, taking castings out of the mold after the castings are naturally cooled in the mold; carrying out machining, specifically, removing residues during machining; and carrying out encasement, specifically, detecting the quality of the castings, and packing and encasing the castings after the castings are qualified. According to the polishing-free pouring system, impurities are filtered while the flow of the molten iron is guaranteed through the transverse groove set, sand holes of the castings are reduced, and the mold filling flow speed is decreased; the yield of the castings is increased through the vertical groove set and the casting grooves, and the four castings are poured at a time; and molten iron supplement is provided through the hot risers, and the probability that the upper portions of the castings collapse after the molten iron is solidified is decreased.

Description

technical field [0001] The invention belongs to the technical field of pouring, and in particular relates to a grinding-free pouring system for a four-piece sand casting of a bearing sleeve. Background technique [0002] The bearing sleeve refers to the sleeve on the bearing of the propeller shaft or stern shaft, and the bearing is a part that fixes and reduces the friction coefficient of the load during the mechanical transmission process. The similarity between the bearing sleeve and the bearing is that both bear the load of the shaft Bearing sleeves are mainly used in machinery, printing and dyeing, papermaking, chemical industry, aerospace, coal, petroleum, automobile, construction machinery, metallurgy and other industries. They belong to the category of sliding bearings, which work under sliding friction. The relative shaft is rotating. Yes, it generally needs to be assisted by a lubrication system to work. [0003] In the existing bearing sleeve casting process, the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a grinding-free pouring system for a four-piece sand mold casting of a bearing sleeve, which solves the problem of the existing bearing sleeve pouring process. Technical Problems of Casting Yield

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