汽车刹车系统用高硅铝合金挤压型材表面气泡缺陷研究  

Study on Surface Bubble Defects of High-silicon Aluminum Alloy Extrusions for Automobile Brake System

作　　者：杨梦楠 

机构地区：[1]山东诺维科轻量化装备有限公司,龙口265705

出　　处：《铝加工》2017年第6期37-40,共4页Aluminium Fabrication

摘　　要：研究分析了一种用于汽车刹车系统的铝合金型材表面气泡缺陷的问题。观察了缺陷的宏观表征与显微组织,从铸造、挤压以及离线淬火等方面分析了气泡形成原因,明确气泡缺陷是在挤压工序中产生的。通过挤压实验成功地解决了气泡缺陷,提高了产品的成品率。The surface bubble defects of aluminum alloy profiles for automobile brake system are studied in this paper. The macroscopic characterization and microstructure of the defects were observed. The causes of bubbles were analyzed from the aspects of casting,extrusion and off-line quenching. It was concluded that the bubble defects were produced in the extrusion process. The bubble defect was successfully solved by extrusion test, and the yield of the product was improved.

关 键 词：汽车用铝合金 挤压 离线淬火 表面气泡 

分 类 号：TG379[金属学及工艺—金属压力加工]