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fuwande

金虫 (小有名气)

[求助] 铸造件 除砂剂

请教:
  
     铸造件除砂剂技术?如何替代氢氟酸?

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zb19821212

铁杆木虫 (职业作家)

挖掘钛白粉....

【答案】应助回帖

这个最常用的替代剂应该是QL-217,是由多种有机酸、无机酸、缓蚀剂配制而成,具体成分就不知道了。至于替代的机理可参考链接https://hi.baidu.com/%D7%CD%B2%A ... e5ffe542169425.html
2楼2012-05-02 12:43:55
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wxt311

木虫 (职业作家)

【答案】应助回帖

https://hi.baidu.com/%D7%CD%B2%A9 ... e5ffe542169425.html
3楼2012-05-02 12:52:38
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