After the mandrel is melted, a thin layer of alloy remains on the propellant surface.
此心轴溶化之后，在推进剂表面上留有一薄层的合金。
As the electroplating pure copper layer on copper alloy exceeds a critical thickness, the surface electroplating treatment can improve the copper alloy's resistance against oxidation failure greatly.
当铜合金表面的电镀纯铜层厚度超过一个临界值，表面电镀纯铜处理可以明显改善材料的耐氧化剥离性。
The results show that the grain size of tin gradually gets smaller while that of alloy layer gets bigger and bigger with the increasing of current density.
结果表明，随着电流密度的增加，电沉积的锡晶粒度逐渐细化，合金层的晶粒度有变粗的趋势。
Electroplating: use the principle of electrolysis, the metal and alloy parts deposition in the surface, form even, density, good adhesion of the metal layer process.
电镀：利用电解原理，使金属或合金沉积在制件表面，形成均匀、致密、结合力良好的金属层的过程。
The microstructure between alloy transition layer and base metal has been studied.
研究分析了合金过渡层与金属基体接合界面组织结构。
Galfan wire, galvanized low carbon steel wire is 5% aluminum alloy, the alloy composition mixed trace rare earth zinc alloy layer.
高尔凡钢丝，低碳钢丝的镀锌层是合金，合金成分5%铝-混合微量稀土合金锌层。
The effect of the atmosphere on the structure and properties of ion nitriding layer of alloy TC4 was investigated.
研究了在不同气氛下进行离子渗氮对TC 4钛合金渗氮层的组织与性能的影响。
The research results also show that the bigger the grains of alloy layer and the neater their arrangement are, the better the corrosion resistance of tin plate will be.
研究结果还表明，镀锡板合金层的晶粒度越大，晶粒排列越整齐，镀锡板的耐蚀性也越好。
It has been applied in sputtering coater system to obtain multi-layer alloy film accurately.
该电路应用于溅射镀膜机上，可较精确地控制多层合金膜镀层。
This paper deals with the possibility of obtaining siliconizing layer on cobalt base alloy.
本文论述了在钴基合金上获得硅化物层的可能性。
Electroplating is to use the principle of electrolysis in some metal surface plating a thin layer of the other metal and alloy process.
电镀就是利用电解原理在某些金属表面上镀上一薄层其它金属或合金的过程。
By observing and analyzing the casting test piece, we have found a metallurgical integrating layer that is made up of chromizing cast-iron alloy layer.
我们还对铸渗质量较好的铸渗试件进行了观察和分析，发现铸铁渗铬合金层与母材结合良好，呈冶金结合。
The comprehensive mechanical properties of the heat shears were analyzed and the microstructures and properties of the surfacing high wear resisting alloy layer were studied.
分析了热剪刃的综合力学性能要求，并对表面堆焊高耐磨合金层的显微组织和性能进行了研究。
A layer of ceramic film can be grown on ti alloy by the micro plasma oxidation.
在钛合金表面用微等离子体氧化能产生一层陶瓷膜。
By tem analysis, the microstructure of the hole expansion strengthened layer of high temperature alloy GH169 was studied.
采用透射电子显微术，研究了GH169高温合金孔挤压强化层的微观结构。
The surface morphology of corrosion layer, corrosion products, structure and alloy elements of rust layer in natural city atmosphere were studied by metallographic observation, SEM and XRD.
主要采用金相、扫描电镜、X-射线衍射方法分析和探讨了初期腐蚀层形貌、腐蚀产物和合金元素的分布。
Anticorrosion property of galvanized steel wire can be improved by increasing Zn-coat thickness and be reduced by decreasing alloy layer thickness.
镀锌钢丝的耐蚀能力随镀层厚度增加而增加，随合金层厚度的增加而降低。
A siliconized nonporous layer on copper alloy may be obtained by efficient siliconizing in powder mixtures.
介绍了铜合金在渗剂粉末中高效渗硅，获得无孔的渗硅层。
The mathematical models of influences of various process factors on cast-penetrated alloy layer were created.
建立了各工艺因素对铸渗合金层影响的数学模型。
And dirty steel belt surface, impurity and Pb phase accumulation during alloy belt manufacture lead to worse adhesion between alloy layer and steel back.
而在合金带的生产过程中，钢带表面未清洗干净，存在杂质及铅相偏聚等，是导致合金层与钢背之间结合不良的主要因素。
Introducing the performance of spraying welding layer for nickel wearing resistance alloy.
介绍了镍基耐磨合金喷焊层的性能。
It is an inevitable tendency to reduce the thickness of tin coating and alloy layer of tinplate.
减薄镀锡板的镀锡层和合金层的厚度成为目前镀锡板生产的趋势。
The polycrystalline diamond (PCD) compact is composed of polycrystalline diamond layer and hard alloy layer.
PCD复合片由聚晶金刚石层和硬质合金层组成。
The surface hardness, carburized structure and thickness of the carburized layer on the TiAl-alloy obtained through the different carburization technologies was studied.
试验研究了钛铝基合金离子渗碳后的渗层组织结构、渗碳温度和时间对渗层厚度、表面硬度的影响。
With the effect of spraying transitional layer, a stainless steel alloy layer was obtained on the magnesium based metal matrix composites by laser cladding.
利用中间过渡层的作用，在镁基金属复合材料上激光熔覆了不锈钢合金层，熔覆层与基体为冶金结合。
The Ni based alloy powder surfacing layer was obtained by light beam surfacing on the 45 steel and the microstructure of heat affected zone(HAZ) and the phase of the surfacing layer were studied.
采用聚焦光束热源在45钢母材上获得了镍基合金粉末堆焊层，研究了堆焊层的物相组成及母材热影响区的微观组织特征。
The forming process of castchromized alloy layer on the surface of gray iron has been studied.
研究了铸铁表面铸渗铬合金层形成过程。
In this paper, the influence of surfacing technology and material on the quality of light beam Ni based alloy powder surfacing layer was investigated.
研究了堆焊工艺和材料对镍基合金光束粉末堆焊质量的影响规律。
Intermetallic compound foam reinforced aluminium alloy surface composite layer are obtained by solution treatment after low pressure Casting.
通过低压铸造后固溶处理的方法，获得了网状金属间化合物增强铝合金表面复合层。
The wear resistance of hard alloy (YG14) and boronizing layer, boron-chromizing layer for steel 45 was studied.
研究了硬质合金(YG14)和45钢渗硼层、硼铬共渗层的耐磨性。
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