EPS模复合精铸工艺的研究与应用

蓝勇; 陈辉; 陶思波; 周春燕; 叶升平

doi:10.15980/j.tzzz.2014.01.021

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EPS模复合精铸工艺的研究与应用
Research and Application of EPS Composite Investment Casting Technique
2014年34卷第1期页码：77-81
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.01.021

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[1]蓝勇,陈辉,陶思波,周春燕,叶升平.EPS模复合精铸工艺的研究与应用[J].特种铸造及有色合金,2014,34(01):77-81.

Lan Yong, Chen Hui, Tao Sibo, et al. Research and Application of EPS Composite Investment Casting Technique[J]. Special Casting & Nonferrous Alloys, 2014,34(1):77-81.
[1]蓝勇,陈辉,陶思波,周春燕,叶升平.EPS模复合精铸工艺的研究与应用[J].特种铸造及有色合金,2014,34(01):77-81. DOI： 10.15980/j.tzzz.2014.01.021.

Lan Yong, Chen Hui, Tao Sibo, et al. Research and Application of EPS Composite Investment Casting Technique[J]. Special Casting & Nonferrous Alloys, 2014,34(1):77-81. DOI： 10.15980/j.tzzz.2014.01.021.

摘要

介绍了一种新型的复合精铸工艺

研究了EPS（可发性聚苯乙烯）模样制作与表面光洁化处理和制壳等相关工艺技术

解决了EPS模样表面品质差、模样收缩变形、制壳涂挂性差、型壳焙烧破损等技术问题

实现了EPS模复合精铸技术在汽车低合金复杂碳钢件中的生产应用。结果表明

与低温蜡模料熔模铸造工艺对比

制模效率提高2倍以上

制壳模组总质量减少一半

免脱蜡

铸件尺寸精度达到CT6级

表面粗糙度达到Ra6.3mm

满足汽车铸件品质要求。

Abstract

A new composite investment casting technique was described

and the related processes including EPS pattern making

surface smoothing disposal and shell-making

were analyzed systematically.It is solved for the following technical problems including low surface quality

pattern contraction distortion

poor shell-making coating property and shells burning failure for EPS pattern.The EPS investment casting was applied successfully in volume-production of complicated automobile lower alloy carbon steel components.Compared with the low temperature wax process

it shows advantages as follows:the pattern-making efficiency increased by 2times

total shell weight decreased by 50%

and dewaxing-free process as well as the dimension precision degree reaching CT6with surface quality of Ra6.3.