发动机缸盖用Al-6Si-3.5Cu-0.3Mg合金的熔炼工艺研究

费良军; 陈大辉; 施虹霞; 徐英

doi:10.15980/j.tzzz.2019.02.027

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发动机缸盖用Al-6Si-3.5Cu-0.3Mg合金的熔炼工艺研究
Melting Process of Al-6Si-3.5Cu-0.3Mg Alloy for Engine Cylinder Head
2019年39卷第2期页码：217-220
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.02.027

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[1]费良军,陈大辉,施虹霞,徐英.发动机缸盖用Al-6Si-3.5Cu-0.3Mg合金的熔炼工艺研究[J].特种铸造及有色合金,2019,39(02):217-220.

Fei Liangjun, Chen Dahui, Shi Hongxia, et al. Melting Process of Al-6Si-3.5Cu-0.3Mg Alloy for Engine Cylinder Head[J]. Special Casting & Nonferrous Alloys, 2019,39(2):217-220.
[1]费良军,陈大辉,施虹霞,徐英.发动机缸盖用Al-6Si-3.5Cu-0.3Mg合金的熔炼工艺研究[J].特种铸造及有色合金,2019,39(02):217-220. DOI： 10.15980/j.tzzz.2019.02.027.

Fei Liangjun, Chen Dahui, Shi Hongxia, et al. Melting Process of Al-6Si-3.5Cu-0.3Mg Alloy for Engine Cylinder Head[J]. Special Casting & Nonferrous Alloys, 2019,39(2):217-220. DOI： 10.15980/j.tzzz.2019.02.027.

摘要

对发动机缸盖用Al-6Si-3.5Cu-0.3Mg合金进行精炼、变质和晶粒细化等熔炼工艺研究。结果表明

Al-6Si-3.5Cu-0.3Mg合金采用旋转喷吹精炼处理工艺可取得良好的精炼效果

并且静置时间应控制在1.5h之内;采用Al-10Sr中间合金作为变质剂

当Sr的加入量为0.06%时

可获得较好的变质效果;采用Al-5Ti-1B中间合金进行细化晶粒处理

其加入量为3%时具有较好的细化效果。

Abstract

The smelting process such as refining

modification and grain refinement of Al-6Si-3.5Cu-0.3Mg alloy for engine cylinder head was investigated.The results show that the Al-6Si-3.5Cu-0.3Mg alloy can achieve the satisfied refining effect by rotary injection refining process

and the holding time should be controlled within 1.5 has much as possible.Al-10Sr master alloy was used as a modifier

and when the amount of Sr added was 0.06%

better modification effect could be obtained.The grain refining treatment was carried out by using Al-5Ti-1B master alloy

and the addition of 3%

had better refining effect.