薄壁钨管旋压温度控制研究  

Research into spinning temperature control of thin-wall tungsten pipe

作　　者：黄科[1] 陈兴驰[1] 梁淑贤[1] 

机构地区：[1]广州有色金属研究院材料室,广东广州510651

出　　处：《广东有色金属学报》2005年第4期41-43,共3页Journal of Guangdong Non-Ferrous Metals

摘　　要：对粉末冶金钨管旋压工艺中的温度控制问题进行了研究.要确保旋压温度,管坯的长度在成品倍尺内取短倍尺,管坯内径与芯模之间的间隙不大于0.8 mm,芯模开坯预热温度不高于600℃,开坯芯模锥度不小于1/1000,芯模长度取管坯延伸系数1.5变形后的长度范围.旋压过程中随时调整各工艺因素和操作方法,以保证旋压温度,使旋压顺利进行并获得较高的成品率.The temperature control in the process of spinning tungstenic pipe made in powder metallurgy is studied in this paper. To insure the spinning temperature, the interspace of pipe blank and mold is less than or equal to 0.8 mm, the temperature of preheating the mold is less than or equal to 600℃, the pyramidal number of mold is greater than or equal to 1/1000, the mold length is within the bound of 1.5 times pipe blank extension coefficient. The spinning temperature can be insured by adjusting relevant technological parameters. So the spinning can go on smoothly and a high rate of spinning finished product can be obtained.

关 键 词：钨管 旋压 温度 芯模 管坯 

分 类 号：TG306[金属学及工艺—金属压力加工]