|
|
马上注册，结识高手，享用更多资源，轻松玩转三维网社区。
您需要 登录 才可以下载或查看，没有帐号？注册
x
摘要：通过合理地选择化学成分，严格控制3 t／h冲天炉的各项熔炼工艺参数，即选择风口比为4％左右、底焦高度为
" E" W! K* Y! j2 g9 l9 U1 500～1 600 mm，铁焦比为8：1，送风强度90～120 m3／m·min，稳定地生产出铸态高韧性QT400—18铸件。. y3 `1 U7 F: m8 _4 k( M0 O
关键词：冲天炉；高韧性；球墨铸铁
7 p, R9 N8 @# Y. O中图分类号：TG255 文献标识码：B 文章编号：1003—8345(2007)04—0026—03
$ W9 P6 o0 Z; b8 W4 hProduction of As—-Cast High Toughness Nodular Iron Castings with Cupola M elting1 {7 t4 s# |; z- }, |. l, X
KONG Fan-gang ，BI Jing—bing2，WANG Jun2,ZHANG Ji-xiang28 e: J# `$ A9 a* Q$ c
(1．Non—standard Equipments Manufacture Co．Ltd．，No．1 Inner Mongolia Machinery Group Co．，Baotou 014032，China；2．
& J3 m0 {$ [2 x% L" ?Shengquan Group Co．Ltd．，Ji’nan 250204，China)
8 s0 t, z* G- QAbstract： The QT 400-1 8 grade of as-cast high toughness nodular iron(with tensile strength≥400 Mpa．and elongation t>, @: u+ ]* ]( o( I+ ]4 ?9 I2 |$ v) p
8％)could be produced stably with cupola melting by adopting~llowing measures：optimizing chemical compositions，strictly
7 I3 U( @: l- `& v* K& u9 d# Z2 v" _controlling every parameters of cupola melting including that the tuyere ratio was adopted as about 4％．the height of coke
( S& E8 B- E+ S# M- ebed was of 1 500-1 600 mm．the iron coke ratio was of 8：1．and the blast intensity was of 90-1 2 |
|
发表于 2009-3-1 14:15:17
