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A method for controlling the casting defect of Al-Si-Mg alloy through grain refinement and improving 发明授权

2023-07-20 3870 1066K 0

专利信息

申请日期 2025-07-11 申请号 KR1020110072193
公开(公告)号 KR101260336B1 公开(公告)日 2013-04-26
公开国别 KR 申请人省市代码 全国
申请人 KOREA INSTITUTE OF MACHINERY MATERIALS
简介 PURPOSE : A method for controlling welding defects by reducing aluminum-silicon-magnesium alloy particle size and improving cooling rate is provided to minimize the size of a needle-shaped insertion phase and reduce the amount of the needle-shaped insertion phase in welding. CONSTITUTION : A method for controlling welding defects reduces the particle size of Al-Si-Mg alloy and improves cooling rate by electromagnetic pulse treatment which removes welding defect of Al-Si-Mg alloy by irradiating the Al-Si-Mg alloy with the electromagnetic pulse form an electromagnetic pulse generators. The electromagnetic pulse generator which comprises a wave guide for transferring the electromagnetic pulse to the inside of a weld can reduce the size of the Al-Si-Mg alloy particle and improves cooling rate. The material of the wave guide is titanium material. The wave guide is located in the inside of the weld. The Al-Si-Mg alloy is an Al-6-7 wt% of Si-Mg alloy which is a 356 or 357 alloy. [Reference numerals] (AA) Untreated with electromagnetic pulses; (BB) Treated with electromagnetic pulses of 2Hz; (CC) Treated with electromagnetic pulses of 4Hz; (DD) Treated with electromagnetic pulses of 6Hz


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