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铸铝零件的化学氧化

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铸铝零件的化学氧化

发布日期:2018-12-27 作者:铝压铸铸造 点击:

迅雷彩票官网  ZHUZAOLVHEJINSHIMUQIANGUANGFANYINGYONGDEGONGCHENGCAILIAOZHIYI,KEFENWEILV-GUI,WU-TONG,LV-MEIHELV-XINDENGZHONGLEI,QIZHONGYILV-GUIXIZHULVHEJINDEYINGYONGZUIGUANG。ZHULVHEJINDALIANGYINGYONGYUQICHE、MOTUOCHEGONGYE,HANGKONGHANGTIANGONGYE、CHUANBO、QIANTINGGONGYE,TEBIESHIZUOWEIKUANGJIA、ZHIJIADENGJIEGOUJIANYIJIWAIZHUANGLINGJIANRUJIXIAQIAOTIDENG。


  ZHULVLINGJIANJIAGONGCHENGXINGHOU,WANGWANGYAOQIUJINXINGZHUANGSHIXINGBIAOMIANCHULI。ZHULVHEJINLINGJIANBIAOMIANZHUANGKUANGGECHUBUTONG,YOUDEBUWEISHIFEIJIAGONGBIAOMIAN,BIAOMIANSHENGCHENGYANGHUAPIMO,YOUWUZHONG,YOUDEBUWEISHIJIJIAGONGBIAOMIAN,BIAOMIANZHUANGKUANGLIANGHAO。ZHUZAOLVHEJIN,TEBIESHILVTONGHANLIANGJIAOGAODEZHULVHEJIN,GUITONGDEJIARUDADATIGAOLELVHEJINDEQIANGDU,QUEZENGJIALEBIAOMIANJINGSHIJIAGONGKUNNAN。MOUXIEXINGHAODEZHULVHEJINSHIBUNENGJINXINGDIANDUHUOYANGJIYANGHUACHULIDE。BIRUDUIHANCu2%~2.5%Si7.5%~12%DEZHULVHEJIN,WULUNDIANDUHUOYANGJIYANGHUACHULIDOUSHIXIANGDANGKUNNANDE,YAOBAOZHENGDIANDUHUOYANGJIYANGHUADESHUNLIJINXING,WANGWANGYAOYOUTESHUDEQIANCHULI。


迅雷彩票官网  MOUCHANPINQIAOXIALEILINGJIAN,SHIGUITONGHANLIANGJIAOGAODEYAZHULVHEJIN,JINGGUOJIXIEJIAGONGCHENGXING。GENJUCHANPINLINGJIANSHEJIYAOQIU,CHANPINLINGJIANXUBIAOMIANJINGSHIJIAGONGHEQIANGHUA。WOMENJINGGUOFANFUGONGYISHIYAN,XUANZELEWUSEHUAXUEYANGHUAFANGFAHUODEMOCENGZHILIANGLIANGHAO。


  2 GONGYILIUCHENG


  HUAXUEYANGHUAFANGFAZHUYAOFENWEI4GEBUZHOU:


  ①PENWANCHULI。


  ②HUOHUACHULI。


  ③WUSEHUAXUEYANGHUACHENGMO。


  ④JIANYANRUKU。GONGYILIUCHENGRUXIA:


迅雷彩票官网  PENWANQIANYANSHOU→PENWANCHULI→HUOHUACHULI→LIUDONGSHUIXI→WUSEHUAXUEYANGHUA→LIUDONGSHUIXI→CHUIGAN→JIANYANRUKU。


  2.1 PENWANCHULI


  ①PENWANQIANGHUABINGWEIHUAXUEYANGHUACHENGMOZUOHAOQIANCHULIZHUNBEIDUIZHULVLINGJIANBIAOMIANJINXINGPENSHACHULI,SUIRANKEYIQUCHUZHULVLINGJIANBIAOMIANYOUWU、YANGHUAPIJIMAOCIDENG,BINGSHIBIAOMIANCHANSHENGYAYINGLIERDEDAOQIANGHUA。DANBIAOMIANCUCAOERWUJINSHUGUANGZE。


  ZHULVLINGJIANBIAOMIANZAI70~90℃JIANXINGCHUYOUFUSHIRONGYECHULISUINENGGOUYOUXIAODIQINGJIELINGJIANBIAOMIAN,DANYOUYULINGJIANBIAOMIANZHUANGKUANGBUTONG,YOUFEIJIAGONGBIAOMIAN、YOUJINGJIAGONGDEBIAOMIAN,CHUYOUFUSHISHIJIANBUYIKONGZHI。RUGUOCHUYOUFUSHISHIJIANGUOZHANG,WANGWANGFASHENGBUJUNYUNFUSHI。ERQIECHUYOUFUSHIGUODU,YEHUISHILINGJIANBIAOMIANCUCAOQIEWUJINSHUGUANGZE,BUNENGCHANSHENGYAYINGLIERQIANGHUABIAOMIAN。


  BENGONGYICAIYONGBOLIQIUWANJINXINGPENWANCHULI。QIUZHUANGBOLIWANPENSHEDAOZHULVLINGJIANBIAOMIANBUJINNENGYOUXIAODIQUCHUYOUBANWUJI,YANGHUAPIDENG,ERQIEZAILINGJIANBIAOMIANXINGCHENGXUDUOWEIXIAOBANYUANXINGBIAOMIAN,JINGGUANGXIANFANSHE,CHENGXIANJINSHUGUANGZE,BIAOMIANCUCAODUDEDAOMINGXIANDEGAIGUAN。ERQIEPENWANCHULIHAINENGSHIBIAOMIANCHANSHENGYAYINGLI,TIGAOBIAOMIANDEPILAOSHOUMING,JIANGDIBIAOMIANDUIYINGLIFUSHIDEMINGANXING,DADAQIANGHUALELINGJIANBIAOMIAN。JINGHUAXUEYANGHUACHULIDEBIAOMIANKESHENGCHENGZHIMIERGUANGLIANGDEYANGHUAMOCENG,WANQUANMANZUCHANPINSHEJIYAOQIU。YINCIWOMENXUANYONGLEPENWANQIANGHUACHULIZUOWEIHUAXUEYANGHUACHENGMODEQIANCHULIGONGXU。


  BOLIQIUPENWANCHULIYIBANKONGZHIPENSHEJULIWEI200~350mm,PENSHEJIAO60~70℃,PENSHEYALI5kg/mm2,ZHUYIBIMIANLINGJIANBIAOMIANJUBUQUYUZHANGSHIJIANPENSHE。


  2.2 HUOHUACHULI


  ②WEIBAOCHILINGJIANBIAOMIANYAYINGLICENGBUSHOUPOHUAI,DUIYIJINGPENWANQIANGHUACHULIDEZHULVLINGJIANBIAOMIANJINXINGHUOHUACHULI。


迅雷彩票官网  HUOHUACHULIRONGYECHENGFEN:


  HNO3(d=1.42)  60%


迅雷彩票官网  HF(40%)     20%


迅雷彩票官网  SHIWENHUOHUAJINZISHIJIAN 1~5s


迅雷彩票官网  2.3 HUAXUEYANGHUACHENGMO


  ZHULVHEJINLINGJIANJINGPENWANQIANGHUA、HUOHUACHULIHOUYINGJISHIJINXINGHUAXUEYANGHUACHULI。YISHENGCHENGJUNYUN、WUSETOUMINGDEYANGHUAMOCENG。


  HUAXUEYANGHUAYOUYIXIAA、BLIANGPEIFANG,KERENXUANQIYI:


  PEIFANGA:

迅雷彩票官网  ZHONGGESUANNA(Na2Cr2O7)    3~3.5g/L

  GEGAN(CrO3)         3~5g/L

  FUHUANA(NaF)         0.5~0.8g/L

  YANGHUAWENDU           SHIWEN

  YANGHUASHIJIAN           3~5min

  PEIFANGB:

  ZHONGGESUANJIA(K2Cr2O7)      0.8~lg/L

  QINGFUSUAN(HF40%)        0.25~0.5ml/L

  FEILIZIXINGBIAOMIANHUOXINGJI      SHILIANG

  pH              2.7~3.5

  YANGHUAWENDU           20~40℃

迅雷彩票官网  YANGHUASHIJIAN           30~90s

迅雷彩票官网  PEIFANGZHONGZHONGGESUANNA、GEGAN、ZHONGGESUANJIA、JIFUHUANA、QINGFUSUANTIGONGZHONGGESUANGENLIZIHEFULIZI,ZAIHUAXUEYANGHUACHENGMOGUOCHENGZHONGQIZHONGYAOZUOYONG。ZHONGGESUANGENLIZISHIYANGHUAJI,SHICUSHIYANGHUAMOSHENGCHENGDEZHUYAOCHENGFEN。FULIZISHIHUOHUAJI,TAYUZHONGGESUANGENLIZIGONGTONGZUOYONG,YOULIYUSHENGCHENGZHIMIDEYANGHUAMOCENG,XUYANGEKONGZHIERZHEDEHANLIANGHEBILI。HUAXUEYANGHUARONGYEDEpH ZHIYAOKONGZHIZAIGUIDINGDEFANWEINEI,YONGXIHNO3HUONaOHRONGYEDIAOZHENG。

  YANGHUARONGYEZHONGTIANJIASHILIANGDEFEILIZIXINGBIAOMIANHUOXINGJIYOULIYUZENGQIANGRONGYEHELINGJIANBIAOMIANDERUNSHIXING,YOUXIAODITIGAOCHANPINLINGJIANBIAOMIANDEYANGHUAMOZHILIANG。

迅雷彩票官网  DANGWENDUDISHI,YANGHUACHENGMOFANYINGJIAOMAN,WENDUSHENGGAOZEFANYINGSUDUJIAKUAI。RONGYEWENDUCHAOGUO40℃SHI,YANGHUAMOJIANGFENHUA,SUOYI,YANGHUACHENGMOWENDUYI25~30℃WEIJIA。

  DANGYANGHUARONGYEZHONGLVLIZIHANLIANGBUDUANSHENGGAO,pH ZHISHANGSHENGCHAOGUOKONGZHIFANWEISHI,YANGHUAMOZHILIANGDILIE。ZHEISHIYINGGAIJISHIBUFENHUOQUANBUGENGHUANYANGHUARONGYE。

  2.4 JIANCHAYANSHOU

  ZHULVLINGJIANHUAXUEYANGHUACHULIHOU,QINGXICHUIGAN,JIEZHEDUIYANGHUAMOCENGJINXINGJIANCHA。YANGHUAMOBUWANZHENGHUOMOCENGSHUSONG、GUAHUIDELINGJIAN,YAOJINXINGFANXIU,ZHONGXINYANGHUA。


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