Elimination of Gas （Shrinkage） Hole in Die Casting Transmission Shaft Bracket I

Li Shan; Zhao Binghua

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Elimination of Gas （Shrinkage） Hole in Die Casting Transmission Shaft Bracket I
Vol. 30, Issue 12, Pages: 1124-1126(2010)
Published： 2010 ，
DOI：

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[1]李珊,赵炳华.压铸传动轴支架气(缩)孔的改善[J].特种铸造及有色合金,2010,30(12):1124-1126+1074-1075.

Li Shan, Zhao Binghua. Elimination of Gas （Shrinkage） Hole in Die Casting Transmission Shaft Bracket I. [J]. Special Casting & Nonferrous Alloys 30(12):1124-1126(2010)
[1]李珊,赵炳华.压铸传动轴支架气(缩)孔的改善[J].特种铸造及有色合金,2010,30(12):1124-1126+1074-1075. DOI：

Li Shan, Zhao Binghua. Elimination of Gas （Shrinkage） Hole in Die Casting Transmission Shaft Bracket I. [J]. Special Casting & Nonferrous Alloys 30(12):1124-1126(2010) DOI：

摘要

由于压铸模结构所限

传动轴支架I有两处35mm×10mm的沉台无法压铸出底孔

全部由机加工成形

容易在机加工后产生较大气（缩）孔。针对两处的不同特点

分别采用成形镶件和增加辅助浇道的方法进行改进

达到了降低气（缩）孔废品率的目的。

Abstract

It is difficult to produce bottom hole in two bearings with 35 mm in diameters and 10 mm in length on the transmission shaft bracket by die casting due to its limit of die casting die structure

so the bottom hole was formed by machining operation

which resulted in the occurrence of large gas （shrinkage） hole in worked bearing. Aiming at the features of the bearing

gas （shrinkage） hole was decreased or eliminated by adopting coordinate-ingate and inlay.