摘要
粉末冶金汽车水泵轮毂普遍要求抱紧力（也称脱毂力）大、耐磨性好、强度高、防腐性好等,这对设备、模具、工艺等都提出了很高的要求,其中抱紧力最重要。汽车水泵轮毂上端大多是锥面,该结构比较特殊。在压制时,很容易造成中间和顶端密度小。在其他条件相同时,密度大小直接决定抱紧力的大小。因此,要想提高抱紧力,就必须提高轮毂中间和顶端密度。从生产实际和轮毂的基本结构出发,介绍了3种提高轮毂中间和顶部密度的方法。
Powder metallurgy automobile water pump hubs generally require a large clasp force（also known as the force fell off the hub）,good wear resistance,high strength,good corrosion resistance,etc. Such requirements make a high demand for equipment,molds,processes,etc.,of which the clasp force is the most important. The upper end of the automobile water pump hub is mostly a conical surface,and the structure is quite special. During pressing,it is easy to cause a low density in the center and top ends. The clasp force is depending on the density in the case that other conditions are equal. Therefore,in order to improve the clasp force,it is necessary to increase the center and top density of the hub. Starting from the actual production and the basic structure of the hub,three methods to increase the density of the center and top of the hub were introduced.
作者
吕浩
LU Hao(Laizhou Xinmao Machinery Factory,Laizhou 231427,China)
出处
《粉末冶金工业》
CAS
北大核心
2018年第4期82-84,共3页
Powder Metallurgy Industry
关键词
粉末冶金
汽车水泵轮毂
模具
密度
powder metallurgy
automobile water pump hub
mold
density
