|
|
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
/ O( z3 M- p- Y% `! H. g, e1 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。
% t4 R* r" L5 G' q; f/ h关键词：冲天炉；高韧性；球墨铸铁
! {) B5 p) b, N2 }. X! {中图分类号：TG255 文献标识码：B 文章编号：1003—8345(2007)04—0026—03
6 ]/ x3 j' H4 `9 _0 ~# uProduction of As—-Cast High Toughness Nodular Iron Castings with Cupola M elting6 G* r- d. Z4 g' _" ~- ~' V
KONG Fan-gang ，BI Jing—bing2，WANG Jun2,ZHANG Ji-xiang2* w* ^: ]5 z$ G7 o
(1．Non—standard Equipments Manufacture Co．Ltd．，No．1 Inner Mongolia Machinery Group Co．，Baotou 014032，China；2．2 O E3 ^& x: t* [+ D
Shengquan Group Co．Ltd．，Ji’nan 250204，China)- X' _/ a4 E* o" k. N% G2 t7 s% I! H
Abstract： The QT 400-1 8 grade of as-cast high toughness nodular iron(with tensile strength≥400 Mpa．and elongation t>
7 z. s$ t% ~4 P4 i) D( h8％)could be produced stably with cupola melting by adopting~llowing measures：optimizing chemical compositions，strictly9 E% {. g1 O& o$ y$ Z' s5 i& g: A/ p
controlling every parameters of cupola melting including that the tuyere ratio was adopted as about 4％．the height of coke
/ x2 g6 b, e$ 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
