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40cr无缝管酸洗过程中容易出现的问题

  • 所属:行业新闻
  • 时间:2019-06-25 11:26:21
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40cr无缝管中国彩票酸洗过程中容易出现的问题

  

氢脆   40cr无缝管酸洗时氢气除了对氧化铁皮有剥离作用外,还向钢坯基体内部扩散,并在杂质或气孔处聚集,导致内应力增加,降低钢的塑性,增加钢的脆性,这种作用叫氢脆。氢脆主要受氢原子扩散速度的影响。而氢的扩散速度与下列因素有关:

中国彩票1)  QINGZAILIUSUANRONGYEZHONGDEKUOSANSUDU,BIZAIYANSUANRONGYEZHONGDEKUOSANSUDUGAO。

2)  随着40cr无缝管酸洗温度的提高,氢的扩散速度急剧提高,而增加酸液浓度,氢的扩散速度提高得并不多。因此,最好不要在低浓度高温下酸洗。

3)  SUANXIZHONGDE40crWUFENGGUANMOUXIEJIAZAWURUSHEN(As)、TI(Sb)、LIUHUAQING(H2S)HEERYANGHUALIU(SO2)ZENGJIAQINGYUANZIDEKUOSANSUDU,JIZENGJIACHANSHENGQINGCUIDEKENENGXING。

中国彩票4) 40crWUFENGGUANDEHUAXUECHENGFENDUIQINGYUANZIDEKUOSANYIYOUYINGXIANG。YUFANGQINGCUIDECUOSHISHIANZHAOGUIDINGDESUANYENONGDUJIWENDUJINXINGCAOZUO,JINLIANGSUODUANSUANXISHIJIAN,ANSHIANLIANGJIARUHUANSHIJIDENG。

中国彩票QIANSUANXI   SUANXIHOUDE40crWUFENGGUANBIAOMIANSHANGRENGCUNZAISHANGWEICHUJINGDEYANGHUATIEPI,ZHEIZHONGXIANXIANGJIAOZUOQIANSUANXI。QIANSUANXIGENJUCHANSHENGDEYUANYINBUTONGKEFENWEIQUANBUQIANSUANXIHEJUBUQIANSUANXI。ZAOCHENGQUANBUQIANSUANXIDEYUANYINSHISUANXISHIJIANDUAN、SUANYENONGDUDIHUOWENDUDI;ZAOCHENGJUBUQIANSUANXIDEYUANYINSHIMALIAOSHIWEIJIADIANTIEHUOGANGPIBIAOMIANJUBUYOUYOUWUDENG。QIANSUANXIKEYONGJIXUSUANXIDEBANFAJINXINGWANJIU。

GUOSUANXI、40crWUFENGGUANGUOSUANXISHI,BIAOMIANCUCAOERQIESEAN;GEBUXIUGANGGUOSUANXISHI,BIAOMIANCHENGHUISEBINGQIEJIQICUCAO,YANZHONGZHEYOUYIDINGSHENDUDEYUANXINGKONGDONG——ZHENKONG。CHANSHENGGUOSUANXIDEYUANYINSHISUANYEWENDUGUOGAO、SUANXISHIJIANGUOZHANGHUOSUANYENONGDUGUOGAO。ZHEIZHONGQUEXIANYIDANFASHENGWUFAWANJIU,DUIGANGDEXINGNENGCHANSHENGYOUHAIYINGXIANG。GUOSUANXI40crWUFENGGUANZAIYAZHIGUOCHENGZHONGHENRONGYIZHANGUNHUOPOSUI。

CANZHAHUOXIUSHI 

  酸洗后除有铁盐40cr无缝管中国彩票残留在钢坯表面上外,还有一层由40cr无缝管中其他元素的氧化物或盐类组成的残渣。这些残渣对钢坯表面缺陷的清理不利,如不及时洗掉还会使钢坯表面继续锈蚀,呈现黄色。

 

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40crGANGGUAN,40crHEJINGUAN,40crWUFENGGUAN,40crHEJINGANGGUAN,40crWUFENGGANGGUANCHANGJIA

中国彩票XIAOSHOUREXIAN:13210456668   0635-8882302  0635-8882303 YINJINGLI


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