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电炉冶炼42crmo厚壁钢管相关技术研究进展

文章出处:http://bagsbig.com 发表时间:2017/6/8 17:48:27 点击:4

42crmoHOUBIGANGGUAN

  电炉冶炼42crmo厚壁钢管的泡沫渣技术主要包含了喷吹法、直接加入法,其目的是采用额外的技术手段创造更多的用来推动渣发泡的气源并改善渣的发泡性能。

  PENCHUIFAZHUYAOSHIZAICHUIYANGDETONGSHIPENCHUIYANGHUATIEPI、TANFEN、GUIFENHUOFAPAOJIFEN。PENCHUIYANGHUATIEPIKEQIDAOYIDINGDEKUAISURONGJIESHIHUIZUOYONG,ZHAZHONGHANYIDINGLIANGDEYANGHUATIEKEGAISHANZHADELIUDONGXINGYITIGAOQIFAPAOXINGNENG。PENCHUITANFENDAOZHACENGKECUSHIQIYUYANGHUAWUFANYINGYISHIFANGZHAFAPAOXUYAODEQITI。PENCHUIGUIFENKECUJINZHAZHONGYANGHUAGEDEYUHAIYUAN,BIMIANZHAZHONGCr2O3GUOGAOERDAOZHIZHAGUONIAN。

  RUIDIANDEAvesta Sheffield ABGONGSICAIYONGPENCHUIFAZAISHIYANGUOCHENGZHONGQUDECHENGGONG,CAIYONGXIANGZHAMIANPENCHUIYANGQIHETANFENDETONGSHI,PENCHUIYANGHUATIEPILAITIGAOZHAZHONGFeOHANLIANG,TONGGUOKONGZHIHESHIZHADECHENGFENLAIZAO42crmoHOUBIGANGGUANPAOMOZHA,YELIANZHOUQISUODUANLE10%-16%,CHENGBENDADAJIANGDI。

  DEGUOYIJIAGANGTIEGONGSITONGGUOXIANGZHAMIANPENCHUIXIAOSUANGAI(Ca(NO3)2·4H2O)HETANFENLAIZHIZAON2、COHEH2OQIYUAN,ZAIYELIAN13%Cr42crmoHOUBIGANGGUANDEGUOCHENGZHONGZAOCHULELIANGHAODEPAOMOZHA。KAOLVDAOSHIHUISHIHUOBAIYUNSHIKEYIFENJIECHUCO2,DEGUOHANBAOGONGSITONGGUOPENCHUIBAIYUNSHIZAO42crmoHOUBIGANGGUANPAOMOZHA,YIDALIDEILVAGANGCHANGTONGGUOPENCHUISHIHUISHIZAO42crmoHOUBIGANGGUANPAOMOZHA,ZHUYAOLIYONGZHEIXIETANSUANYANDEFENJIESHIFANGYONGYUTUIDONGZHAFAPAODEQITI。

  PENCHUIFADEQUEDIANSHIPENCHUIDEWULIAOHENNANJUNYUNMISANZAIZHACENGZHONG,TONGSHISHENGCHENGDECOQIPAOGUODUOJIZHONGZAIZHACENGDESHANGBU,BUNENGZHENGTITUIDONGZHAFAPAO,LINGWAI,PENCHUIDESHELIUYOUYIDINGDEXIPAOXIAOYING,BULIYUPAOMODEWENDING。

  ZHIJIEJIARUFASHITONGGUOLIAOCANGHUOZHUANYOUDEJIARUSHEBEIXIANGYELIANRONGCHIJIARUFAPAOJIHUOFAPAOQIU。SHANGHAIDAXUECAIYONGTIANJIAYISHIHUISHI、BAIYUNSHIHEJIAOTANWEIZHUYAOYUANLIAODEFAPAOJI,JINXINGLESHIYANSHIHESHENGCHANSHIYAN,SHIYANYANJIULEBUTONGZHAXIDUIZHAFAPAOXINGNENGDEYINGXIANG,ZAISHIYANSHIHESHENGCHANZHONGZAOCHULIANGHAODEPAOMOZHA,RANER,SHIHUISHIJIBAIYUNSHIBENSHENNANYIRONGJIE,HUISHIDEQIPAOSHIJIANTUICHI,CAIYONGZHIJIEJIARUFABURUPENCHUIFAYOULIYUFAPAOJIKUAISUFENJIE。

  最近德国SMS DEMAG公司与波兰克拉克科技大学联合开发了一种新的造42crmo厚壁钢管泡沫渣的方法,通过制作密度介于钢液和渣之间的发泡球,发泡球加入熔池后会停留在钢渣之间,如图3所示。发泡球由铁粉、FeO、C及石灰石等物质构成,在熔化过程中可释放CO和CO2气体作为发泡气源,此种方法的发泡球可下沉到渣底部,则不干扰渣的发泡性能,同时气泡可从渣层底部推动渣发泡,发泡效果良好。此项技术在巴西Timoteo钢铁公司3号电炉冶炼42crmo厚壁钢管的应用过程中,可以将原先的电弧升温速率6-7K/min提高到11-12K/min,在实际应用过程中是连续加入的,需要有额外的加料设备,这也从某种程度上制约了此项技术的推广。


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