Ceramic-salt Core for Piston

Zhang Guohua1; Feng Zengjian1; Gao Zhanyu1; Gao Xiaobo1; Liu Xiangfa2

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Ceramic-salt Core for Piston
Issue 9, Pages: 698-699(2008)
Published： 2008 ，
DOI：

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[1]张国华,冯增建,高占雨,高晓波,刘相法.活塞陶瓷型盐芯的研发[J].特种铸造及有色合金,2008(09):698-699+654.

Zhang Guohua1, Feng Zengjian1, Gao Zhanyu1, et al. Ceramic-salt Core for Piston. [J]. Special Casting & Nonferrous Alloys (9):698-699(2008)
[1]张国华,冯增建,高占雨,高晓波,刘相法.活塞陶瓷型盐芯的研发[J].特种铸造及有色合金,2008(09):698-699+654. DOI：

Zhang Guohua1, Feng Zengjian1, Gao Zhanyu1, et al. Ceramic-salt Core for Piston. [J]. Special Casting & Nonferrous Alloys (9):698-699(2008) DOI：

摘要

为研制压铸内冷活塞

在普通盐芯生产的基础上

开发了陶瓷型盐芯。通过采用陶瓷添加剂、多重造粒及新型焙烧等技术

结合陶瓷型盐芯成型模具及加工刀具的研究

使陶瓷型盐芯达到高强度（94.4MPa）、高密度（2.25g/cm3）、低线膨胀系数（在20～400℃下42.8×10-6/℃）

满足了活塞的耐压要求和内冷油腔铸造的目的。

Abstract

Ceramic-salt core was developed for die casting piston with cooling gallery on the basis of common salt core

in which the ceramic additive

multipile granulation and new baking were adopted. And mould for ceramic-salt core as well as machining tools was considered. The ceramic-salt core is characterized by high strength （ 94.4 MPa）

high density （2.25 g/cm3） and low linear expansibility （42.8×10-6/℃ at 20～400 ℃）

meeting requirements of pressure and inner cooling gallery for piston.