提出了选择合适镀硬铬替代工艺的要求。
The requirements for selecting qualified alternative processes were presented.
通过盐酸浸蚀法实现了铝合金上直接镀硬铬。
The method of directly electroplating Cr on Al alloy by HCl immersion was studied.
所有传动轴、辊材质均为优质钢，高精度动平衡校正，镀硬铬、表面研磨。
All the tra mi ion axle and rollers are made of high-quality steel with high-precision dynamic balance, plated with rigid chrome and grinded surface.
所有传动轴、辊材质均为优质钢，高精度动平衡校正，镀硬铬、表面研磨。
All the transmission axle and rollers are made of high-quality steel with high-precision dynamic balance, plated with rigid chrome and grinded surface.
精密小孔在镀硬铬时，很难获得均匀的镀层，直接影响产品的尺寸精度和形位精度。
It is difficult to gain homogeneous coating when precision small holes are electroplated chrome, which affects the dimensional precision and the form precision of the product.
介绍了在已有铬层上补镀硬铬的方法，强调了补镀前表面净洁、反电刻蚀(阳极处理)、低电压小电流起镀等工艺的重要性及应注意的问题。
The importance of surface cleaning before replating, reverse electro-etching (anodic treatment) as well as low-voltage and small-current plating, and some problems needing attention were emphasized.
介绍了在已有铬层上补镀硬铬的方法，强调了补镀前表面净洁、反电刻蚀(阳极处理)、低电压小电流起镀等工艺的重要性及应注意的问题。
The importance of surface cleaning before replating, reverse electro-etching (anodic treatment) as well as low-voltage and small-current plating, and some problems needing attention were emphasized.
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