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42CrMo厚壁钢管裂纹是哪一环节的差错

文章出处:http://bagsbig.com 发表时间:2017/6/8 17:46:07 点击:3

42CrMo厚壁钢管裂纹是哪一环节的差错

42CrMo厚壁钢管在顶锻时,较易出现裂纹,显微发现:裂纹处基体组织为不平衡的铁素体+珠光体,裂纹边缘为1.5mm的脱碳层,裂纹处光滑,无裂纹延伸。

QIJIAGONGLIUCHENGWEI:EB-LF-VD-LIANZHUQUANCHENGBAOHUJIAOZHU-YAJIYAZHI。

FENXIQICHENGYIN:

1、42CrMo厚壁钢管组织缺陷

YOUYUGANGCAICUNZAIBIAOMIANQIKONG、PIXIAQIKONGDENG,JIARELUNEIBIAOMIANQUEXIANWAILUBEIYANGHUAERXINGCHENGTUOTANCENG,QUEXIANCHUQIANGDUJIANGDI,ZAIREDINGDUANSHANG,SHANGXIABUWEICUNZAIHENDADEYAYINGLI,DUANJIANBIAOMIANCUNZAIHENDADELAYINGLI,LAYINGLICHAOGUOQUEXIANCHUJITIQIANGDU,HUIXINGCHENGLIEWEN。

2、42CrMo厚壁钢管钢质

YOUYU20CrMnTiHCUNZAIZHE[Ti]HE[Al],SHIDEYICHANSHENGTiN、Ti(CN)、TiO2JIGAORONGDIANLVSUANYANPIANJUZAIGANGZHAJIEMIAN,CIWAI,GANGSHUIZHONGQIPAORONGYIXIFUTiNDENGWUZHISHANGFUDAOGANGZHAJIEMIAN,XINGCHENGGANG-ZHA-QIPAOHUNHETI。ZHEIXIEHUNHETISHANGSHENGDAOWANYUEMIAN,BUBEIBAOHUZHATONGHUAHOU,BIANJUJIXINGCHENGLENGPIHEJIEQIAOWENTI,ZAOCHENGBULIYINGXIANG。

3、42CrMoHOUBIGANGGUANBAOHUZHA

BAOHUZHAZHANDUGUODA,HUIYINGXIANGDAOBAOHUZHALIURUJIEJINGQIHEZHUPIZHIJIANDELIANXUXINGHEJUNYUNXING,ERRUGUOJIEJINGQIHEZHUPIJIANZHAMOFENBUBUJUNHUIYANZHONGYINGXIANGZHUPICHUANREDEJUNYUNXING,SHIDEJUBUNINGGUQIAOCHENGZHANGZHIHOU,JUBUPIQIAOJIAOBO,RONGYIXINGCHENGAOXIAN,YANZHONGSHIEHUAWEILIEWEN。

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