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丝扣管件铸件的型砂缺点和防锈简介

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丝扣管件铸件的型砂缺点和防锈简介

发布日期:2019-12-19 作者:河南天之明商贸有限公司 点击:


      如果浇注系统能将金属液分配得当,且能防止型砂温度过高,那么对会形成高温部位(有可能产生冲砂的部分)的型砂,还要求具有足够的高温强度。

  ZAIMOUYIWENDUXIA,XINGSHAQIANGDUBUGOUWANGWANGSHIYOUYUNIANTUJIARULIANGSHAO,YINERWEINENGXINGCHENGSUOYAOQIUDEGAOWENQIANGDU,QIJIEGUOSHIXINGSHAGANQIANGDUHEGAOWENQIANGDUJUNDI。

澳门足彩  NIANTULIANGBUZUSHIZAOCHENGXINGSHAGAOWENXINGNENGCHADEYIXIANGJIBENYUANYIN。XINGSHADEZHEIXIEXINGNENGHAISHOUDAOXIASHUYINSUDEYINGXIANG:SHUIFENSHAO,BUNENGWANQUANHUOHUAYITIANJIADENIANTU;HUNSHASHIJIANDUAN,BUZUYISHISHUIHENIANTUHUOHUA;XUANYONGDENIANTUPINZHONGBUDANG(GAOWENQIANGDUDI);FUJIADEKANGNIANJIEWUZHI(XIANWEISUDENG)JIARULIANGGUODUO,YINERJIANGDILEXINGSHADEGAOWENQIANGDU。

  XINGSHAWENDUGAO,DUICHONGSHAYOUZHIJIEHEXIANZHUDEYINGXIANG。ZHEIKENENGSHIYOUYUSHAXINGGUOZAOGANZAO,HUOZHESHIRESHAZHIJIEYINGXIANGNIANTUSHADEXINGNENG。RESHADAOZHIXINGQIANGDEBIANYUANJIGUAIJIAOBIANGANFASU,ZHEIXIEBUWEIZAIJIAOZHUSHIJIUCHENGLEBORUOHUANJIE。NEI。KUFANGDEWENDUDAYUWAIJIEWENDUCUN,DUIFANGXIUYOULI。

    金属或合金在大气中由于氧、水分、酸、盐及潮湿空气引起的腐蚀或变色称为生锈或锈蚀,它可以使具有很高强度的金属表层变成强度很低的化合物。为此,熔模铸件常需进行中期防锈处理。防锈的方法,一般采用水剂防锈或油料防锈。无论,河南玛钢管件采用哪一种方法防锈,铸件预先都要经过洗涤,清除表面的污浊物,并促使其牛成钝化膜。洗涤液的成分、温度及用途见表6-13。铸件洗涤后要用热的、干燥的压缩空气吹干,随即进行防锈处理。

 河南玛钢管件 

澳门足彩      (YI)SHUIJIFANGXIU

  ZHUGANGJIANCHANGYONGSHUIJIJINXINGFANGXIU.FANGXIUJISHIYOUSHUIJIFANGXIUYUANLIAOPEIZHIERCHENG,YONGYUGONGXUJIANFANGXIUJIFENGCUNFANGXIU。FANGXIUJIDECHENGFENJIHANLIANGJIANBIAO6-14,QIZHONG1HAOFANGXIUJISHIZUICHANGYONGDEYIZHONG。FANGXIUJIZHONGYAXIAOSUANNAHANLIANGDUO.QIFANGXIUNENGLIQIANG;FANZHIFANGXIUNENGLIRUO。

  用水剂防锈比较方便、安全和经济。,河南玛钢管件防锈方法是先用洗涤液将铸件表而的污浊物洗净,经干燥以后,浸入防锈剂内保持儿分钟后取出即可。

  (ER)YOULIAOFANGXIU

  FANGXIUYOULIAOSHIYIKUANGWUYOUHUOHECHENGYOUWEIJICHU,TIANJIAYOURONGXINGHUANSHIJIHEFUZHUTIANJIAJIPEICHENGDE。,HENANMAGANGGUANJIANYONGFANGXIUYOULIAOFANGXIU,YICHENGYOUFENG,ZHUYAOYOULENGTUFAHERETUFALIANGZHONG:

  ①LENGTUYOUFENGGONGYIWEI:JINLIAO→XIDI(120HAOHUO200HAOQIYOU)→HONGGAN(50-60℃REFENG)→TUYOU(FANGXIUYOUZHI)→BAOZHUANG。

  ②RETUYOUFENGGONGYIWEI:JINGXIDIJIGANZAOHOUDEZHUJIANFANGRUJIAREZHI110-120℃DEZHONGXINGGONGYEFANSHILIN(HUOHANGKONGRUNHUAYOUYU4-6%JINGZHIDILACHOUHUADEYOULIAO)ZHONGJINZI5-20FENZHONG,QUCHUHOUZAIZAI60-70℃TONGYANGDEJIEZHIZHONGJINZISHUMIAOZHONG(YIBANWEI5MIAOZHONG),ZUIHOUQUCHUZHUJIAN。

澳门足彩  ,HENANMAGANGGUANJIANJINGFANGXIUCHULIGUODEZHUJIANYINGCUNFANGZAISHIDUBUCHAOGUO70%DEKUFANG


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