等静压成型圆钨条工艺研究  

A Study on lsostatic Compaction Technology of Round Tungsten Rod

作　　者：张福生[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《中国钨业》2000年第3期29-35,共7页China Tungsten Industry

基　　金：中国有色金属工业总公司计划基金

摘　　要：对用极细掺杂钨粉(2.5～5.0μm)等静压成型长径比30左右的圆钨条工艺进行了研究 ,解决了圆钨条难成型、坯条弯曲、不圆、直径不均匀 ,脱模难等五大技术问题 ;分析了新老两种工艺生产的钨坯在烧结加工过程中对组织结构和性能的影响。找出了钨丝劈裂脆断的原因。为了使该工艺用于工业生产 ,还研制了金属粉末自动装料机 。The paper research the isostatic compaction technology of round tungsten rod with fine impure tungsten powder (2.5～5.0μm). The technology solve five technical problems, such as the difficult compaction of tungsten rod, difficult bending of tungsten rod, not round of the shape, inhomogeneous diameter and difficult drawing of patterns etc. The effect of new technology and old technology on the structure and property in sintering tungsten rod are analysed. The broken reasons of tungsten wire are found out. Automatic feeder of metal powder is researched and put into production, not only increase the productive efficiency but also increase the speed of feeding powder.

关 键 词：等静压成型 钨条 钨丝 圆钨条 双螺旋灯泡 

分 类 号：TG146.411[一般工业技术—材料科学与工程]