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huangguaha木虫之王 (文坛精英)
我不是我
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[求助]
不锈钢酸洗方面的，谢谢
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Tarnished or reduced-oxide surfaces are usually not encountered on nickel-chromium or Ni-Fe-Cr alloys. These alloys can only be bright annealed in very dry hydrogen or in a vacuum. Oxides formed on their surfaces in other atmospheres do not undergo complete reduction. Oxide or scale is the usual surface pickled on nickel-chromium and Ni-Fe-Cr alloys. Pretreating in a fused-salt bath is strongly recommended to facilitate pickling of oxidized or scaled surfaces. However, if the metal has been properly heated and cooled, it will usually have a surface suitable for direct pickling in Formula 3. If a fused-salt bath is used for pretreating, the following procedure should be used for pickling nickel-chromium and Ni-Fe-Cr alloys: Treat in fused-salt bath. • Quench in and spray with water. • Immerse in Formula 4. • Withdraw from bath and rinse with water. • Immerse in Formula 1. • Withdraw from bath and rinse with water. • Pickle in Formula 3 as required. |
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爱与雨下: 金币+1 2012-10-28 19:00:35
huangguaha: 金币+166, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2012-10-28 22:48:38
爱与雨下: 金币+1 2012-10-28 19:00:35
huangguaha: 金币+166, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2012-10-28 22:48:38
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镍铬合金及Ni-Fe-C合金常常不会出现生锈的或氧化还原的表面。这些合金只有在干燥氢气中或真空中环境下进行光亮退火。在其他环境下，表面因不能完全的还原而生成氧化物。氧化物和垢是这两种合金通常的浸蚀产物。为促使生成氧化物和垢表面的浸蚀产物，在熔盐浴中的预处理是强力推荐的。不管怎样，如果合金是经过了恰当的热与冷却过程，在配方3中，它的表面将适合直接的浸渍。如果运用了熔盐浴进行了预处理，镍铬合金及Ni-Fe-C合金应用下面的过程进行浸蚀： 熔盐浴中处理。 • 用水喷射，冷却。（淬火） • 沉浸到配方4料中。 • 从盆中取出并用水漂净。 • 沉浸到配方1料中。 • 从盆中取出并用水漂净。 • 按要求用配方3料进行浸蚀。 |
2楼2012-10-28 00:11:35