A356铝合金双重除气工艺研究  

Compound Degassing of A356 Aluminum Alloy

作　　者：程书建 邱立宝 刘峰 张晓光 Cheng Shujian, Qiu Libao, Liu Feng, Zhang Xiaoguang(Tianjin Lizhong Group Co., Ltd)

机构地区：[1]天津立中集团股份有限公司

出　　处：《特种铸造及有色合金》2018年第9期1028-1030,共3页Special Casting & Nonferrous Alloys

摘　　要：采用水模拟试验研究了两种旋转喷吹转子对气泡的影响,并分别采用透气砖、旋转喷吹和双重除气工艺对铝合金熔体除气,开发出一种双重除气工艺。结果表明,转子形状对铝液除气效果有较大影响,双层转子能够充分破碎气泡,并使气泡更加分散,起到良好的除气效果。旋转喷吹对底部铝液除气效果较差,而透气砖除气效率较低,采用透气砖和旋转喷吹双重除气,能够充分处理底部铝液中的气体,显著提高除气效率。Influence of two kinds of swirling rotor on bubble in aluminum alloy was analyzed by water simulation.A compound degassing process was explored by using gas permeable brick,rotary degassing and compounded degassing process.The results show that the shape of the rotor has a great influence on the effect of degassing effects of aluminum liquid.The double rotor can crush the bubbles fully and disperse the bubbles even more,thus achieving the satisfied degassing effect.The degassing effect of spinning spray on the bottom aluminum fluid is poor,while the degassing efficiency of the permeable brick is low.The compound degassing with gas permeable brick and rotary degassing can treat the aluminum liquid in the bottom of container and improve the degassing efficiency markedly as well as increasing the density of aluminum liquid.

关 键 词：旋转喷吹 透气砖 除气 

分 类 号：TG146.21[一般工业技术—材料科学与工程]