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球墨鑄鐵熔煉處理工藝及其注意事項

來源:《金屬加工熱加工》 秩名 2016-07-16 瀏覽
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ZHUTIEDEHEJINHUACHULIKEYIZHUISUDAO20SHIJISANSISHINIANDAI,HEJINHUACHULISHIDEZHUTIEXINGNENGYOULEZHIDEFEIYUE,TONGSHIYEDANSHENGLEYIXIETESHUYONGTUDEZHUTIERUNAIMO、NAISHIHENAIREXINGNENG。CAIYONGYUNYUDEFANGSHILAISHENGCHANZHUTIEYESHIZAIZHEGESHIQINEICHANSHENGDE。ZAI20SHIJI40NIANDAIMO,YUNYUHOUJUYOUQIUXINGSHIMODEDEZHUTIETIDAILETONGCHANGDEPIANZHUANGSHIMOZHUTIE,WOMENCHENGZHELEIZHUTIEWEIQIUMOZHUTIE。

球化元素與反球化元素的分類

金巴黎彩票 QIUHUAYUANSUANQIQIUHUAXIAOGUO,YIBANFENWEISANZU。

DIYIZU:Mg、Y、Ce、La、Pr、Sm、Dy、Ho、Er。

金巴黎彩票 DIERZU:Ba、Li、Cs、Rb、Sr、Th、K、Na。

DISANZU:Al、Zn、Cd、Sn。

DIYIZUQIUHUANENGLIZUIQIANG,DIERZUCIZHI,DISANZUZUIRUO。

金巴黎彩票 DANGYONGMEIZUOQIUHUAYUANSUSHI,DISANZUYUANSUWANGWANGCHANSHENGFANQIUHUAZUOYONG。

FANQIUHUAYUANSU :LIUHEYANGSHIZHUTIEZHONGCHANGJIANDEFANQIUHUAYUANSU,CIWAITi、Al、B、As、Pb、Sn、Sb、Bi、Te、SeDENGZESHUYUTIEYENEICHANGJIANDEFANQIUHUAYUANSU。FUBIAOSHIANQIZUOYONGJILIFENLEI。

 

如何選擇球化劑

金巴黎彩票 QIUHUAJIHEYUNYUJISHIQIUHUACHULIGUOCHENGZHONGZUIZHONGYAODECAILIAO,CHULEZHILIANGWENDINGWAI,XUANZEHESHIDEQIUHUAJIHUANXUYAOKAOLVYIXIAJIZHONGYINSU。

QIUHUACHULIWENDU:RUGUOQIUHUACHULIWENDU>1480℃,QIUHUAFANYINGHUIBIJIAOJULIE,JINERZAOCHENGJIAODIDEMEIXISHOULV。WEILESHIQIUHUAFANYINGPINGWEN,ZEKEXUANZEGAIHANLIANGXIANGDUIJIAOGAODEQIUHUAJI。RUGUOQIUHUAWENDU<1480℃,ZEKEYISHIYONGGAIHANLIANGXIANGDUIDIYIDIANDEQIUHUAJI。

CHULIBAOCHICUN:RUGUOCHULIBAODEGAOJINGBIWEI1:1,ZEYOUYUMEIZHENGQIDESANSHIHUIDAOZHIMEIXISHOULVDEJIANGDI,JIANYISHIYONGGAIHANLIANGJIAOGAODEQIUHUAJI。RUGUOCHULIBAODEGAOJINGBIWEI2:1,ZEQIUHUAFANYINGHUIBIJIAOPINGWEN,MEIZHENGQIHUIKUOSANDAOTIEYEZHONG,MEIXISHOULVDEDAOTIGAO。

QIUHUACHULIGONGYI:RUGUOBUSHIYONGGAIBAOFA,NEIMEQIUHUAFANYINGCHANSHENGDEYANWUJIUHUIJINRUDAODAQIZHONG,BINGQIEHUICHANSHENGCIYANDEBAIGUANG。WEILESHIQIUHUAFANYINGPINGWEN,KEYICAIYONGDIMEIGAOGAIDEQIUHUAJI。RUGUOSHIYONGGAIBAOFAGONGYI,TIEYEBUHUIFEIJIAN,BINGQIECHANSHENGDEYANWUJIAOSHAO,KESHIYONGGAOMEIDIGAIDEQIUHUAJI,YIJIANSHAOJIARULIANG,JIANGDIQIUHUACHENGBEN。

金巴黎彩票 CHULIZHONGLIANG:RUGUOCHULITIEYEDEZHONGLIANGXIAOYU500kg,NEIMEKESHIYONGLIDUJIAOXIAODEQIUHUAJI,TUIJIANSHIYONGLIDU12mmYIXIADEQIUHUAJI。RUGUOCHULITIEYEDEZHONGLIANGZAI 500~1000kg,KESHIYONGLIDUJIAODADEQIUHUAJI,RULIDUWEI3~25mmDEQIUHUAJI。RUGUOCHULITIEYEDEZHONGLIANGDAYU1000kg,ZEKEYISHIYONG4~32mmDEQIUHUAJI。

硅含量:如果鑄造產品的工藝出品率較低或者廢品率較高,想通過多加回爐料和廢鋼的方式進行熔煉,而最終鑄件對鐵水的硅含量有嚴格要求。在孕育量沒法進一步降低的前提下,可使用低硅球化劑進行處理,這樣可使回爐料多加8%~15%,可降低鑄造廠的生產費用。

原鐵液硫含量:如果原鐵液硫含量較高,如果不進行脫硫處理,則需要高鎂高稀土的球化劑,并且加入量會較高,如果原鐵液的硫含量較低,則可以使用低鎂低稀土的球化劑,且加入量會較低,低鎂低稀土的球化劑成本也會比較便宜。

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