Centrifugal Casting Process Optimization with Graphite Mould for Titanium Alloy Impeller

San Jingchao

doi:10.15980/j.tzzz.2014.04.028

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Centrifugal Casting Process Optimization with Graphite Mould for Titanium Alloy Impeller
Vol. 34, Issue 4, Pages: 413-415(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.04.028

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[1]伞晶超.钛合金叶轮石墨型离心铸造工艺优化[J].特种铸造及有色合金,2014,34(04):413-415.

San Jingchao. Centrifugal Casting Process Optimization with Graphite Mould for Titanium Alloy Impeller. [J]. Special Casting & Nonferrous Alloys 34(4):413-415(2014)
[1]伞晶超.钛合金叶轮石墨型离心铸造工艺优化[J].特种铸造及有色合金,2014,34(04):413-415. DOI： 10.15980/j.tzzz.2014.04.028.

San Jingchao. Centrifugal Casting Process Optimization with Graphite Mould for Titanium Alloy Impeller. [J]. Special Casting & Nonferrous Alloys 34(4):413-415(2014) DOI： 10.15980/j.tzzz.2014.04.028.

摘要

介绍了某化工设备上使用的钛合金叶轮铸件石墨型铸造工艺。分析了铸件产生气孔和叶片位置偏移等缺陷的原因。通过增加加工余量、提高离心转速和优化石墨型工艺

即加工余量由原来的5mm增至15mm、离心转速由120r/min提高至200r/min并制作划线工装

消除了铸件缺陷

最终获得了合格的钛合金叶轮。

Abstract

The centrifugal casting process with graphite mould for a titanium impeller used for chemical equipment was described.Origination of gas holes and blade position offset in the Ti alloy impeller were analyzed.By increasing the machining allowance and the centrifugal rotational speed as well as optimizing graphite mould

such as the machining allowance increased from 5mm to 15mm

the centrifugal rotational speed increased from 120r/min to 200r/min and scribing tool

the defects in the Ti alloy impeller were eliminated

and the qualified titanium alloy impellers were produced sucessfully.