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无缝方管的热处理优点是什么

文章来源:山东聊城凯泰管业有限公司 人气:105 发表时间:2019/11/12 10:13:15

  为了提高Q345B无缝方管的表面硬度与耐磨性,可对其进行一些表面的处理,即火焰表面粹火,高、中频表面的淬火以及一些化学热处理等。一般而言高、中频表面的淬火居多,其加热的温度在850-950℃。考虑到它的导热性差,因此加热的速度不能太快,否则会产生熔化与一些淬火裂纹的缺陷。高频淬火要求Q345B无缝方管正火后基体组织主要为珠光体。冷却采用喷水或者是喷聚乙烯醇水溶液,回火的温度在200-400℃范围内,硬度在40-50HRC,可确保Q345B无缝方管表面的硬度和耐磨性。

  LINGWAI,Q345BWUFENGFANGGUANRECHULIHAIJUYOUYIXIASANGEYOUDIAN:

  (YI)CHICUNWENDINGXINGDUIYUGAOJINGDUDEQ345BWUFENGFANGGUAN,QIYAOQIUDEJINGDUGAO, GUBIXUBAOCHICHICUNDEWENDINGXING,YOUYUZAIKONGQIZHONGJINXINGXIAOZHI,LENGQUESUDUMAN, YINCIJUYOUWENDINGHUADEZUOYONG,HUIZENGJIAZUZHIZHONGCANYUQ345BWUFENGFANGGUANDESHULIANG,GUBIXUJINXINGLENGCHULI;

  (ER)JIANSHAOCUIHUOBIANXINGYOUYUQ345BWUFENGFANGGUANXIZHANG,GUCUIYINGGUOCHENGZHONGRONG YIBIANXING,GUBIXUYANGEKONGZHIQIBIANXING,RECHULISHISHIFENGUANJIANDEGONGXU,ZAICUIHUOLENGQUEGUOCHENGZHONG,LIYONGLENGSUXINGJINXINGJISHIXIAOZHENG,ZHEISHIQUEBAOQIHEGELVTIGAODEGUANJIANBUZHOU,WEICIYINGJINXINGREYUCUIHUOHUOZAIYOUZHONGLENGQUEYIDINGSHIJIANTICHUREXIAOZHENG。

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  (SAN)GAOYINGDUQ345BWUFENGFANGGUANZHUYAOCHENGSHOUJIECHUPILAOZAIHE,GUBIXUJUYOUGAODEYINGDU,YINCIYINGJINXINGCUIHUO、HUOBIAOMIANCUIHUOHUOHUAXUERECHULIDENG,SUIHOUJINXINGDIWENHUIHUOCHULI。


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