覆层

To determine the laser power accurately, the absorptance of the aluminum surface to the laser energy must be given and the measure methods has been...

对比了不同激光功率密度、扫描速率和不同粉末粒度、粉末预置厚度条件下所形成的熔覆层，确定了铝合金表面激光熔覆的工艺参数范围。。。。

The results show that the temperature and time are important factors to speed up the hydration of cenosphere in calcium hydroxide solution.

根据反应体系中氢氧化钙最强衍射峰强的变化规律，研究了微珠表面包覆层生长机制和包覆机理。

The effects of processing parameters on the cladding layer were examined, and the layer microstructure was investigated.

分析了激光功率、扫描速度和光斑直径等工艺参数对熔覆效果的影响，观测了熔覆层的组织特征与性能。

It was found that the microstructures of the clad layer were dispersive undissolved Cr_2O_3 particles and orbed liquid-precipitated Cr_2O_3 distributed in the...

熔覆层和基材实现良好冶金结合，白亮熔合区宽度为10～20μm。激光熔覆层干滑动摩损的摩擦系数在0.2～0.3之间，磨损率比Ti6A14V标样降低约4～5倍。

The research trend and development of laser cladding technique at home and thread are summarized in this paper, including laser cladding equipment, materials, coating performance and industrial applications.

首先从激光熔覆用设备与材料、熔覆层的性能以及工业应用等方面，综述了国内外激光熔覆技术的研究动态与进展。

The experimental results show that the clad coating iscontinuous, homogeneous, poreless and crackless by optimizing the technical parameters.

结果表明，在优化工艺参数下可获得连续、均匀、无裂纹和气孔的熔覆层，熔覆层由TiC，γ-Ni，M236，CrB，Ni3B等相组成。

The invention relates to a method for stocking and preserving green round wood and sawn timber, which is stored in an airtight and lighttight sealing cover. The oxygen inside the cover is decomposed by the respiratory process of mushrooms, bacteria and wood cells that are still alive, thereby forming CO2 and H2O.

本发明涉及用来保存绿圆木或锯成木材的方法，其中将绿圆木或锯成木材储存在不透气和不透光的包覆层下面，所述包覆层以内的氧气被真菌和细菌的呼吸和发酵过程以及仍然存活的木细胞的呼吸过程所消化，因此产生CO2、H2O。

In order to study the mechanism of macromolecule deterring propellant on changing burning law,the polymerizing conditions,mechanical and thermal decomposition performance of coating-layer is studied.

通过改变聚合方式、温度、时间、引发剂、聚合界面的方法，探讨了涂覆层的聚合工艺；通过材料试验机试验和热分解试验，研究了聚二甲基丙烯酸乙二醇酯涂覆层在不同温度下的力学性能及其热分解规律。

Adding molecular sieves to liner can remarkably improve the combination properties of the liner .

将分子筛添加于包覆层中，可显著提高包覆层的综合性能。

The corrosion behavior of the microwires in aqueous HF solution and melting NaOH were investigated respectively,and the anti-corrosion property of glass-coated pure copper microwires in strongly acid and strongly alkali were analyzed with the corrosion mechanism being discussed.

采用熔融纺丝法制备了玻璃包覆纯铜微丝，对微丝表面玻璃包覆层的去除进行了实验研究，评价了微丝在氢氟酸和熔融氢氧化钠中的腐蚀行为，分析了玻璃包覆纯铜微丝在强酸和强碱中的耐腐蚀性能，探讨了其腐蚀机理。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失