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40cr钢管-40cr无缝管-40cr合金管-42crmo无缝钢管-山东雷铭金属材料有限公司

40cr合金管热处理工艺介绍

  • 所属:中国彩票
  • 时间:2019-09-02 08:41:37
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40cr合金管热处理工艺介绍

 GANGDERECHULI:SHIJIANGGUTAIGANGCAICAIYONGSHIDANGDEFANGSHIJINXINGJIARE、BAOWENHELENGQUEYIHUODESUOXUZUZHIJIEGOUYUXINGNENGDEGONGYI。RECHULIBUJINKEYONGYUQIANGHUAGANGCAI,TIGAOJIXIELINGJIANDESHIYONGXINGNENG,ERQIEHAIKEYIYONGYUGAISHANGANGCAIDEGONGYIXINGNENG。QIGONGTONGDIANSHI:ZHIGAIBIANNEIBUZUZHIJIEGOU,BUGAIBIANBIAOMIANXINGZHUANGYUCHICUN。


  热处理40cr合金管工艺能够显著地提高钢的力学性能,增加零件的强度、韧性和使用寿命,提高硬度和耐磨性。所以重要的机器零件和工具都要进行热处理。热处理还可以改善工件的加工工艺性能,从而提高生产率和加工质量。因此,热处理在机械制造工业中起着十分重要的作用。下面以45钢和40Cr钢为例。


中国彩票  ZAISHENGCHANZHONGJIANGCUIHUOHOUZAIJINXINGGAOWENHUIHUOCHENGWEI“DIAOZHICHULI”,DIAOZHICHULIHOULINGJIANJUYOULIANGHAODEZONGHEJIXIEXINGNENG,GUANGFANYINGYONGYUGEZHONGZHONGYAODEJIEGOULINGJIAN,TEBIESHINEIXIEZAIJIAOBIANFUHEXIAGONGZUODELIANGAN、LUOSHUAN、CHILUNJIZHOULEIDENG。DANBIAOMIANYINGDUJIAODI,BUNAIMO。KEYONGDIAOZHI+BIAOMIANCUIHUOTIGAOLINGJIANBIAOMIANYINGDU。 40CrGANG——HEJINJIEGOUGANG


  40Cr属于GB3077“合金结构钢”。40cr合金管的含碳量为0.37%~0.44%,比45钢略低,Si、Mn的含量相当,含Cr0.80%~1.10%。在热轧供货的情况下,这1%的Cr基本不起作用,它俩的力学性能大体相当。由于40Cr的价格比45钢贵一半左右,所以出于经济性的考虑能用45钢的就不用40Cr。


中国彩票  40CrGANGDEDIAOZHICHULI:CrZAIRECHULIZHONGDEZHUYAOZUOYONGSHITIGAOGANGDECUITOUXING。YOUYUCUITOUXINGTIGAO,CUIHUO(HUODIAOZHI)CHULIHOU40CrDEQIANGDU、YINGDU、CHONGJIRENXINGDENGJIXIEXINGNENGYEMINGXIANBI45GANGGAO,DANYESHIYOUYUCUITOUXINGQIANG,ZAICUIHUOSHI40CrDENEIYINGLIYEJIUBI45GANGDA,TONGYANGDETIAOJIANXIA40CrCAILIAODEGONGJIANKAILIEQINGXIANGYEJIUBI45GANGCAILIAODEGONGJIANDA。YINCIWEIBIMIANGONGJIANKAILIE,40CrCUIHUOSHIDADUOXUANYONGDAOREXINGJIAODIDEYOUZUOWEICUIHUOJIEZHI(YOUSHIYEYONGSHUANGYECUIHUOFA,SUHUAJIAOSHUICUIYOULENG),ER45GANGZEYONGDAOREXINGJIAOGAODESHUIZUOWEICUIHUOJIEZHI。DANGRAN,SHUIHEYOUDEXUANZEYEBUSHIJUEDUIDE,HEGONGJIANDEXINGZHUANGYEYOUMIQIEGUANXI。XINGZHUANGJIANDANDE40CrLINGJIANYEKEYISHIYONGSHUICUI,ERXINGZHUANGFUZADE45GANGLINGJIANYEXUJIUDESHIYONGYOUCUISHENZHIYANYU。


  40CrGONGJIANDIAOZHIDECUIHUIHUO,GEZHONGCANSHUGONGYIKAPIANDOUYOUGUIDING,WOMENZAISHIJICAOZUOZHONGTIHUISHI:


  (1)40CrGONGJIANCUIHUOHOUYINGCAIYONGYOULENG,40CrGANGDECUITOUXINGJIAOHAO,ZAIYOUZHONGLENGQUENENGCUIYING,ERQIEGONGJIANDEBIANXING、KAILIEQINGXIANGXIAO。DANSHIXIAOXINGQIYEZAIGONGYOUJINZHANGDEQINGKUANGXIA,DUIXINGZHUANGBUFUZADEGONGJIAN,KEYIZAISHUIZHONGCUIHUO,BINGWEIFAXIANKAILIE,ZHISHICAOZUOZHEYAOPINGJINGYANYANGEZHANGWORUSHUI、CHUSHUIDEWENDU。


中国彩票  (2)40CrGONGJIANDIAOZHIHOUYINGDURENGRANPIANGAO,DIERCIHUIHUOWENDUJIUYAOZENGJIA20~50℃,BURAN,YINGDUJIANGDIKUNNAN。


  (3)40CrGONGJIANGAOWENHUIHUOHOU,XINGZHUANGFUZADEZAIYOUZHONGLENGQUE,JIANDANDEZAISHUIZHONGLENGQUE,MUDESHIBIMIANDIERLEIHUIHUOCUIXINGDEYINGXIANG。HUIHUOKUAILENGHOUDEGONGJIAN,BIYAOSHIZAISHIYIXIAOCHUYINGLICHULI。


  中碳钢热处理40cr合金管后能够达到的最高硬度约为HRC55(HB538),σb为600~1100MPa。所以在中等强度水平的各种用途中,中碳钢得到最广泛的应用,除作为建筑材料外,还大量用于制造各种机械零件。而中碳钢只要温度够,保温时间够一般都是可能达到这个硬度值的,40cr合金管要是不变形是不可能的事。建议一是有加工余量,然后上磨床加工,二是表面淬火。


 


中国彩票40crGANGGUAN,40crHEJINGUAN,40crWUFENGGUAN,40crHEJINGANGGUAN,40crWUFENGGANGGUANCHANGJIA、WUFENGGANGGUANJIXIEJIAGONG


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