摘要
新的稀土铸造铝合金是在ZL104的基础上加入1.5%Cu和0.5%RE,以金属模浇注,其抗拉强度达271.6MPa、伸长率为5.8%、硬度为HB79。以新合金所生产的消防水带接扣其性能大大超过原来的ZL104合金。
A new casting RE aluminium alloy has been developed by adding 1.5 % Cu and 0. 5% RE in ZL104 alloy. It can achieve a tensile strength of 271. 6MPa,an elongation of 5. 8% and a hardness of HB79 by metal mold casting. The properties of fire hose union made of this new ailoy are remarkably better than that of the original ZL104 alloy.
关键词
消防水带接扣
稀土
铸造
铝合金
Fire hose union
Rare earth (RE)
Casting
Aluminium alloy
