粉末的

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。。。。

In this dissertation, Al-Cu-Mn ternary alloy ultrafine powders with 99% relative content of AlCu〓Mn compound phase were prepared. But only binary compound phases of Al-Cu and Al-Cr systems formed in the Al-Cu-Cr ternary alloy ultrafine powders, without any ternary compound phase.

本研究在蒸发Al-Cu-Mn合金时，制得了AlCu〓Mn相对含量达到99％的合金超微粉末；在蒸发Al-Cu-Cr合金时，制备的超微粉末中只生成了Al-Cr和Al-Cu二元化合物相，无Al-Cu-Cr三元化合物合金相生成。

Furthermore, correlation between poisson ratio and relative density has been given, this is the key to establish yield criterion of powder metals.

在此基础上，本文从粉末体具有土和致密体的双重性质出发，依据土力学和塑性力学，提出并建立了粉末体的屈服准则。

These growth units were absorbed and join the crystal lattice on the growth interface through collision and aggregation.The powders with better crystallinity and double cone or tetrahedron shape were obtained after amorphous ZnS was treated by solventthermal method.

采用溶剂热处理高浓度条件下制备的ZnS无定形粉末，得到晶态结构完整，形状为双锥状或四面体状的粉末。

The fluidization characteristics of powder coatings are studied by means of experiments and observation.

通过试验和观察，研究了粉末涂料的流态化特征，提出了粉末涂料流态化质量的评价方法。

In this study, powder injection molding of Fe-50%Ni was investigated when powder of iron carbonyl and nickel carbonyl was used as raw materials.

本次实验以羰基铁粉和羰基镍粉为原料粉末，采用注射成形方法制取Fe-50%Ni软磁合金，研究了高能球磨制备粉末对注射成形工艺以及材料性能的影响。

Which use laser welding with a powder, a kind of heat treatment, and do not use another kind of heat treatment; plasma surfacing using two different surfacing powder, respectively, and Ni-Fe-based, heat after heat treatment.

其中激光采用同一种堆焊粉末，一种进行热处理，另一种不采用热处理；等离子堆焊采用两种不同的堆焊粉末，分别为Ni基和Fe基，都进行热后热处理。

LT-S series machines are widely used in sub-metal factories at home and abroad. It can separate slag generated by welding, metal powder and flux powder when dealing with submerged arc welding flux back and forth.

本机广泛运用于国内外金属结构行业，能分离处理埋弧焊接时焊剂往复使用时产生的焊渣、金属粉末、焊剂粉末。

Using plasma cladding technology, different content SiC ceramic powder and Ni-based self-fluxing powder on W6 steel were plasma-claded in order to obtain Ni-based SiC alloys coating.

为了制备符合热锻模使用性能要求的模膛表面强化层，采用等离子熔覆技术，以W6为基体，在基体表面对不同含量SiC陶瓷粉末、Ni基自熔性粉末进行等离子熔覆，得到Ni基SiC合金涂层。

The hydraulic diameter of polymer molecular and the inaccessible pore volume in rocks of different permeability are measured by using the electrical resistivity method.

采用汞压仪和AMT—2400孔径分析仪，研究纳米硬质合金粉末&桥接&团粒对粉末及其压坯中孔隙体积分布曲线的影响。用沉降分离、高能剪切粉碎。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐