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    石墨模具热处理中存在的缺陷及预防


    1、石墨模具表面有软点

    SHIMOMOJURECHULIHOUBIAOMIANYOURUANDIAN,JIANGYINGXIANGSHIMOMOJUDENAIMOXING、JIANSHAOSHIMOMOJUDESHIYONGSHOUMING。

    产生原因:

    (1)SHIMOMOJUZAIRECHULIQIANBIAOMIANYOUYANGHUAPI、XIUBANJIJUBUTUOTAN。

    (2)SHIMOMOJUCUIHUOJIAREHOU,LENGQUECUIHUOJIEZHIXUANZEBUDANG,CUIHUOJIEZHIZHONGZAZHIGUODUOHUOLAOHUA。

    预防措施:

    (1)SHIMOMOJURECHULIQIANYINGQUCHUYANGHUAPI、XIUBAN,ZAICUIHUOJIARESHISHIDANGBAOHUSHIMOMOJUBIAOMIAN,YINGJINLIANGCAIYONGZHENKONGDIANLU、YANYULUHEBAOHUQIFENLUZHONGJIARE。

    (2)SHIMOMOJUCUIHUOJIAREHOULENGQUESHI,YINGXUANZEHESHIDELENGQUEJIEZHI,DUIZHANGQISHIYONGDELENGQUEJIEZHIYAOJINGCHANGJINXINGGUOLV,HUODINGQIGENGHUAN。

    2、石墨模具热处理前组织不佳

    SHIMOMOJUZUIZHONGQIUHUAZUZHICUDABUJUN、QIUHUABUWANSHAN,ZUZHIYOUWANGZHUANG、DAIZHUANGHELIANZHUANGTANHUAWU,ZHEIJIANGSHISHIMOMOJUZAICUIHUOHOUYICHANSHENGLIEWEN,ZAOCHENGSHIMOMOJUBAOFEI。

    产生原因:

    (1)SHIMOMOJUGANGCAILIAOYUANSHIZUZHICUNZAIYANZHONGTANHUAWUPIANXI。

    (2)DUANZAOGONGYIBUJIA,RUDUANZAOJIAREWENDUGUOGAO、BIANXINGLIANGXIAO、TINGDUANWENDUGAO、DUANHOULENGQUESUDUHUANMANDENG,SHIDUANZAOZUZHICUDABINGYOUWANGZHUANG、DAIZHUANGJILIANZHUANGTANHUAWUCUNZAI,SHIQIUHUATUIHUOSHINANYIXIAOCHU。

    (3)QIUHUATUIHUOGONGYIBUJIA,RUTUIHUOWENDUGUOGAOHUOGUODI,DENGWENTUIHUOSHIJIANDUANDENG,KEZAOCHENGQIUHUATUIHUOZUZHIBUJUNHUOQIUHUABULIANG。

    预防措施:

    (1)YIBANYINGGENJUSHIMOMOJUDEGONGZUOTIAOJIAN、SHENGCHANPILIANGJICAILIAOBENSHENDEQIANGRENHUAXINGNENG,JINLIANGXUANZEPINZHIHAODESHIMOMOJUGANGCAILIAO。

    (2)GAIJINDUANZAOGONGYIHUOCAIYONGZHENGHUOYUBEIRECHULI,LAIXIAOCHUYUANCAILIAOZHONGWANGZHUANGHELIANZHUANGTANHUAWUJITANHUAWUDEBUJUNYUNXING。

    (3)DUIWUFAJINXINGDUANZAODETANHUAWUPIANXIYANZHONGDEGAOTANSHIMOMOJUGANGKEJINXINGGURONGXIHUARECHULI。

    (4)DUIDUANZAOHOUDEMOPIZHIDINGZHENGQUEDEQIUHUATUIHUOGONGYIGUIFAN,KECAIYONGDIAOZHIRECHULIHEKUAISUYUNXIQIUHUATUIHUOGONG。

    (5)HELIZHUANGLU,BAOZHENGLUNEIMOPIWENDUDEJUNYUNXING。

    3、石墨模具产生淬火裂纹

    SHIMOMOJUZAICUIHUOHOUCHANSHENGLIEWENSHISHIMOMOJURECHULIGUOCHENGZHONGDEZUIDAQUEXIAN,JIANGSHIJIAGONGHAODESHIMOMOJUBAOFEI,SHISHENGCHANHEJINGJIZAOCHENGHENDASUNSHI。

    产生的原因:

    (1)SHIMOMOJUCAILIAOCUNZAIYANZHONGDEWANGZHUANGTANHUAWUPIANXI。

    (2)SHIMOMOJUZHONGCUNZAIYOUJIXIEJIAGONGHUOLENGSUBIANXINGYINGLI。

    (3)SHIMOMOJURECHULICAOZUOBUDANG(JIAREHUOLENGQUEGUOKUAI、CUIHUOLENGQUEJIEZHIXUANZEBUDANG、LENGQUEWENDUGUODI、LENGQUESHIJIANGUOZHANGDENG)。

    (4)SHIMOMOJUXINGZHUANGFUZA、HOUBOBUJUN、DAIJIANJIAOHELUOWENKONGDENG,SHIREYINGLIHEZUZHIYINGLIGUODA。

    (5)SHIMOMOJUCUIHUOJIAREWENDUGUOGAOCHANSHENGGUOREHUOGUOSHAO。

    (6)SHIMOMOJUCUIHUOHOUHUIHUOBUJISHIHUOHUIHUOBAOWENSHIJIANBUZU。

    (7)SHIMOMOJUFANXIUCUIHUOJIARESHI,WEIJINGZHONGJIANTUIHUOERZAICIJIARECUIHUO。

    (8)SHIMOMOJURECHULIDE,MOXUEGONGYIBUDANG。

    (9)SHIMOMOJURECHULIHOUDIANHUOHUAJIAGONGSHI,YINGHUACENGZHONGCUNZAIYOUGAODELASHENYINGLIHEXIANWEILIEWEN。

    预防措施:

    (1)YANGEKONGZHISHIMOMOJUYUANCAILIAODENEIZAIZHILIANG

    (2)GAIJINDUANZAOHEQIUHUATUIHUOGONGYI,XIAOCHUWANGZHUANG、DAIZHUANG、LIANZHUANGTANHUAWU,GAISHANQIUHUAZUZHIDEJUNYUNXING。、

    (3)ZAIJIXIEJIAGONGHOUHUOLENGSUBIANXINGHOUDESHIMOMOJUYINGJINXINGQUYINGLITUIHUO(>600℃)HOUZAIJINXINGJIARECUIHUO。

    (4)DUIXINGZHUANGFUZADESHIMOMOJUYINGCAIYONGSHIMIANDUSAILUOWENKONG,BAOZHAWEIXIANJIEMIANHEBOBICHU,BINGCAIYONGFENJICUIHUOHUODENGWENCUIHUO。

    (5)FANXIUHUOFANXINSHIMOMOJUSHIXUJINXINGTUIHUOHUOGAOWENHUIHUO。

    (6)SHIMOMOJUZAICUIHUOJIARESHIYINGCAIQUYURE,LENGQUESHICAIQUYULENGCUOSHI,BINGXUANZEHESHICUIHUOJIEZHI。

    (7)YINGYANGEKONGZHICUIHUOJIAREWENDUHESHIJIAN,FANGZHISHIMOMOJUGUOREHEGUOSHAO。

    (8)SHIMOMOJUCUIHUOHOUYINGJISHIHUIHUO,BAOWENSHIJIANYAOCHONGFEN,GAOHEJINFUZASHIMOMOJUYINGHUIHUO2-3CI。

    (9)XUANZEZHENGQUEDEMOXUEGONGYIHEHESHIDESHALUN。

    (10)GAIJINSHIMOMOJUDIANHUOHUAJIAGONGGONGYI,BINGJINXINGQUYINGLIHUIHUO。

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