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大口径厚壁方管淬火过程

文章出处:http://pcscd.cn人气:0发表时间:2020/8/4 11:46:20【

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  大口径厚壁方管在淬火全过程,方钢管淬火全过程中为什么会造成软点?如何防止?

  软点是大口径厚壁方管在淬火后出現的部分强度低或淬不了的状况,其造成的缘故取决于:

  ①大口径厚壁方管材料自身的切削性能差;

  ②大口径厚壁方管部分的制冷速率小于临界值制冷速率;

  ③DAKOUJINGHOUBIFANGGUANBUFENCHUXIANKONGQIYANGHUASHENTAN,HUOYUANLIAOGUIGENANTI,DAOZHISHENGCHANJIAGONGGUOSHUZHONGWEICHUDIAOYANGHUAPI(HUOCENG);

  ④CUIHUOJIAWENJIAGONGGONGYIBUSHANHUOSHIJICAOZUOBUKEXUEDENG。

  DUIYUZAOCHENGDEYUANGU,ZAIDAKOUJINGHOUBIFANGGUANDEJUTIRECHULIGONGYIQUANGUOCHENGZHONG,YINGCAIYONGXIALIEDUICE:

  ①DAKOUJINGHOUBIFANGGUANYUANLIAOYINGKAIZHANDUANZAOHUOKAIZHANQIUHUATUIHUO,KEBIMIAN CUIHUOQIANGDUBUYUNSHU,PINTANQUCHUXIANRUANDIAN;

  ②ZHENDUIHENGJIEMIANHENDADEGONGMOJUGANGCAIYINGQUYONGQIEXUEXINGNENGHAODEYUANCAILIAO,ZHENDUIJIEfHOUBUCHAJUDEDAKOUJINGHOUBIFANGGUAN,FEICHANGRONGYIZAIDAHENGJIEMIANCHUCHUXIANRUANDIAN;

  ③ZAICUIHUOQUANGUOCHENGZHONG,JIEJUEDAKOUJINGHOUBIFANGGUANKAIZHANJIAWENWEIHU,BIMIAN BUFENKONGQIYANGHUAHUOSHUTAN;

  ③YOUXIAOCAIYONGZHILENGWUZHI,DUILAOJIUDEWUZHIYINGLIJITIANBUHUOCHAIHUAN;

  ⑤QIADANGZHIDINGCUIHUOJIAWENWENDUHEGEREBAOWENSHIJIAN,BAOZHENGGAIBIANYUNCHENG,BIMIAN itaREWENDUDIHUOGEREBAOWENSHIJIANJIAODUAN,ERDAOZHIDERUANDIANDEZAOCHENG;

  ⑧DAKOUJINGHOUBIFANGGUANBIAOCENGYINGQINGLI,BUKEYOUYANGHUAPIDENG;

  ⑦DAKOUJINGHOUBIFANGGUANZAIZHILENGQUANGUOCHENGZHONGYINGKAIZHANSHIDUDEJIANSHENYUNDONG,BAOZHENGLINGJIANGEYIBUFENYUNCHENGDEZHILENG;

  ⑧ZHENDUIYOUMAIKONG、AOXINGCAODENGWUFENGGUAN,YINGSHIQIWANGSHANGSHUZHICUIRENZHILENGWUZHIZHONG,BINGZUOYOUJIANSHENYUNDONG。


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