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。
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.
作者
费良军
陈大辉
施虹霞
徐英
Fei Liangjun;Chen Dahui;Shi Hongxia;Xu Ying(The Ningbo Branch of Ordnance Science Institute of China)
出处
《特种铸造及有色合金》
CAS
北大核心
2019年第2期217-220,共4页
Special Casting & Nonferrous Alloys
关键词
发动机缸盖
精炼
变质
晶粒细化
Engine Cylinder Head
Refining
Modification
Grain Refinement
作者简介
第一作者:费良军,男,1975年出生,研究员,浙江宁波(315103),电话:0574-87902206,13566305935,E-mail:feiliangjun@163.com.
