粉末冶金新技术在烧结齿轮中的应用

新洁电子

第11卷第3期      Vo1.11 No.3
. e( ?; ~" L. t' ^粉末冶金材料科学与工程
Materials Science and Engineering of Powder Metallurgy
7 I+ S+ g; G0 L- W- T1 [2006年6月   Jun. 2006
$ @/ Z  i; s% n粉末冶金新技术在烧结齿轮中的应用
6 Q4 j# ?8 x& [包崇玺,沈周强,舒正平
* X# U% i1 z2 ~  C0 w$ {; F0 m(宁波东睦新材料集团股份有限公司粉末冶金工程技术中心,宁波315041)
! k' N- |% G3 V% `' |! U; {摘 要:烧结齿轮的性能与粉末冶金工艺密切相关,不同工艺和技术路线生产的齿轮,性能差异很大,而粉末冶金技术的发展促进了烧结齿轮性能的提高和尺寸的稳定.文章作者根据其多年从事粉末冶金齿轮生产与科研的实践经验分析和评述了近年来发展起来的温压成形,高速成形,烧结硬化,高温烧结,熔渗和齿轮表面致密化等技术及其在齿轮制造中的应用;指出:采用温压成形,高速成形,烧结硬化,高温烧结或溶渗等新技术配合表面数字化,可望同时实现高密度,低成本和高精度的齿轮生产.
. w! n" E2 \5 W2 L2 W8 l关键词:温压成形;高速压制;烧结硬化;高温烧结;表面致密化
) G$ f  i& N% }3 _中图分类号:TF124 文献标识码:A 文章编号:1673—0224(2006)3—140—06
Advanced P/M techniques for using in gear sintering
BAO Chong—xi,SHEN Zhou-qiang,SHU Zheng-ping
8 L( I0 M, {+ M3 [, e- J  b, u( f(Ningbo Tongmuo New Materials Co,Ltd,Ningbo 3 1 504 1,China)
5 D( A, [5 t) H+ d4 ^: U" ?( ^0 nAbstract:The P/M processes affect the properties of sintered gears,different P/M processes and technical routes .
5 n8 b9 t: q" f  Y, x1ead tO different properties of sintered gears,and it is the development of P/M technique that promotes the impro一 '
ving of performance and the stablizing of size for sintered gears.Thereby the authors,basing upon their practice ex一
$ t/ {/ o* Q. `' W% N* j/ \( fperience of manufacturing and studing gears by P/M process,analysed and evaluated the progress in powder metal—
2 t2 e% y! U9 P7 b0 q6 ]4 elurgy for sintered gears,including warm.compaction,high velocity compaction,sinter hardening,high temperature
sintering,infiltration and surface densification etc.And finally it is pointed out that at the same moment it is possi—
: x9 G, {- O4 m. Y) k7 Z+ Wble to produce the high density,low cost and high fineness gears by using the novel P/M processes mentioned a—
bove.
/ j2 {$ U& X: z" F9 x+ H( k  DKey words:warm compaction;high velocity compaction;sinter hardening;high temperature sintering;surface
deasification