活塞环镀铬层有裂纹和块状剥落。
There appear cracks and chunk peelings in the chrome-plated layer of these piston rings.
结果表明，激光淬火处理基体可以提高镀铬层的断裂韧性。
The results show that the fracture toughness of Cr-coatings is improved by laser quenching substrate.
大修过程中，许多起落架部件的镀镍层和镀铬层完全被剥离。
During overhaul, many landing gear components are completely stripped to replace nickel and chrome plating.
介绍了各工艺操作中应注意的问题及不良镀铬层的退除方法及效果。
The key points of the operation and the stripping methods and effects of the defective chromium deposit were introduced.
活塞杆镀铬层的气密性问题，是航空工厂长期存在的一个老大难问题。
The airtight function of chromium plating for piston rod is a knotty technical problem for aircraft factories.
镀铬层具有高硬度、耐磨、耐蚀和独特的外观，在电镀行业中应用广泛。
Chromium electrodeposit with high hardness, wearability, corrosion resistance and distinctive appearance was widely applied in electroplating sector.
松孔镀铬层应用于受重压的滑动摩擦件及耐热、抗蚀、耐磨零件，如内燃机汽缸内腔、活塞环等。
Loose hole plating chromic layer by weight used in the sliding friction parts and heat resistance, corrosion, wear parts, such as internal combustion engine cylinder lumen, piston rings.
如果轴的内径上的珐琅、底漆、镀铬层退色或镀镉层损伤，应当在部件投入使用之前拆下热损部件。
Discoloration of the enamel, primer, or chrome or evidence of cadmium damage on the inner diameter of the axle may require the heat-damaged component be removed from service.
该法既提高镀铬液的阴极电流效率又降低生产能耗，可获得光亮平滑、硬度高、结合力好的镀铬层。
It could help not only to increase the cathodic current efficiency of the chromium-plating solution, but also to obtain smooth appearance, high hardness and wearability of chromium electrodeposits.
恢复涂层设计尺寸而打磨部件的镀铬层时，本体金属的打磨过热会造成在镀铬层下形成UTM和OTM。
When grinding chrome to finish dimensions, overheating the base metal can create UTM and OTM formations under the chrome.
结果表明，采用新的电镀方法能避免镀铬层裂纹的产生；并能获得表面平整光亮的镀铬层，降低表面粗糙度。
The results show that the novel method can prevent chromium coating from cracking, gain bright and smooth deposit, and reduce the surface roughness.
运用金相显微镜及扫描电镜观察腐蚀前后连杆的镀铬层组织，证实连杆的表面镀层缺陷是影响其耐腐蚀性的主要原因。
It was proved that the defects of the connecting rod coating is the main reason that weakens the corrosion resistance. By decreasin the current density i…
通过建立砂粒自锁条件及实测长石砂岩、石英砂岩与泵筒镀铬层或氮化层的滑动摩擦系数值，证实了对柱塞拉伤失效原因的推测是正确的。
The deduction is confirmed by establishing self locking conditions and determining the sliding friction coefficients between sand and chromium plating layer and between sand and nitrided surface.
您也可以在有锈斑的镀铬物表面涂上一层可乐——砂布上也来些，然后转圈打磨，即可除锈。
You can also apply coke to a chrome finish which is rust spotted - pour some on a rough textured cloth and rub it in a circular motion.
例如钢基上镀铜、镍层再镀铬、低锡青铜上镀铬、多层镍上镀铬、镍铁合金镀层上镀铬等等。
For example steel base plated copper, nickel, chromium plating, low layer again tin bronze chrome, multi-layer nickel chrome plating nickel ferroalloy, chrome, and so on.
例如钢基上镀铜、镍层再镀铬、低锡青铜上镀铬、多层镍上镀铬、镍铁合金镀层上镀铬等等。
For example steel base plated copper, nickel, chromium plating, low layer again tin bronze chrome, multi-layer nickel chrome plating nickel ferroalloy, chrome, and so on.
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