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.
一种取代活塞环表面电镀硬铬的复合涂层及其加工方法。
The invention relates to the composite coating and machining method replacing the chrome-faced piston ring.
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.
指出热喷涂技术已经在航空、冶金、包装印刷和造纸等工业领域部分替代了电镀硬铬工艺；
Thermal spray coating has been widely used in aerospace, metallurgy, packaging, printing and paper-making industries instead of traditional plating technique.
摩托车常用的硬铬电镀涂层工艺，由于存在许多缺陷，今后有可能部分被热喷涂层工艺取代。
Solid chromium coating is commonly used in motorcycle manufacturing, which will be probably replaced by thermal spraying in the future because of its drawbacks.
详细介绍了当今世界上最先进的汽车减振器杆硬铬电镀技术(DYNA- CHROME)。
The advanced DYNA - CHROME electroplating technology for automotive shock absorber rod was introduced in detail.
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.
一般来说，干硬击实粉煤灰硬化体中六价铬离子的溶出量较泥浆硬化体的高。
In general, hardened fly ashes compacted at the optimum moisture content are with higher hexavalent chromium leachability than hardened fly ash slurry.
在对搅拌器中衬板失效分析的基础上，对镍硬铸铁和铬系白口铸铁进行了磨料磨损试验。
On the base of invalidation analysis of the wear liners of the beater, the abrasion-resistant capability experiment is carried through NJ-cast iron and Ct-white iron.
在粗轧阶段选用了合金半钢材料轧辊，在精轧阶段选用了铬钼无限冷硬铸铁材料的轧辊。
In the process of rough rolling, the alloy semisteel was chosen, and the unlimited chrome and molybdenum chilled iron roll material was used in the process of fine rolling.
硬铸铁和常用的铬系白口铸铁进行了削盘磨损试验和冲击磨料磨损试验。
Abrasion-resistant capability of Ni-cast iron and Cr-cast iron were studied by abrasion wears and impact test.
硬铸铁和常用的铬系白口铸铁进行了削盘磨损试验和冲击磨料磨损试验。
Abrasion-resistant capability of Ni-cast iron and Cr-cast iron were studied by abrasion wears and impact test.
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