粉末的

The element phosphorus acts as fluxing agent to react with oxygen, preventing the Cu particles form oxidation.

研究了粉末体系中粘结金属含量对粉末烧结致密化和烧结件微观组织的影响。

Pelleting the food reduces the amoun t of dust at feeding time which could be harmful to both the farmer and his pigs.

在喂猪时，这些颗粒料不会产生粉末，因为粉末对饲养员和猪都是有害的。

The structure and the phase of Al203/Zr02 plasma spraying powder and ceramics coating with doping nanometer and prefabricating were investigated by modern material analysis means such as SEM and XRD etc. The results showed that the powder structure using plasma spraying doping nanometer was micrometer cladding nanometer in its surface and little nanometer regiment structure.

利用XRD、SEM等观察分析了纳米掺杂A12O3/ZrO2粉末及等离子喷涂涂层组织形貌及结构，结果表明，Al2O3-ZrO2等离子喷涂粉末是由纳米包覆微米级粒子及少量的纳米团聚体球团粒子构成。

SnAgCu lead-free solder powders were prepared by close-coupled gas atomization. The effects of gas atomization pressure and melt superheat on the powder size and morphologies were investigated.

摘 要：采用紧耦合气雾化法制备SnAgCu无铅焊料合金粉末，研究雾化压力和熔体过热度对粉末粒径和形貌的影响。

Study the result makes clear, normal temperature ball grinds a condition to fall, cu-Cr mixed powder end realizes alloy to change; to grind the temperature inside coal tub when the ball hard under 10 ℃ when, cu-Cr mixed powder end forms Cr the solid solution in Cu.

探究结果表明，常温球磨条件下，Cu-Cr混合粉末难以实现合金化；当球磨罐内温度低于10℃时，Cu-Cr混合粉末形成Cr在Cu中的固溶体。

A Cu2Se powder and an In2Se3 powder prepared or purchased in the market are mixed in a planetary ball mill for ball milling and then cold-press molding so as to make a biscuit with mixed material of Cu2Se and In2Se3, the biscuit is positioned in a closed vacuum sintering furnace, and is sintered and cooled for de-molding in the H2 protective atmosphere, thereby obtaining the copper indium selenide target.

通过制备或市场购买Cu 2 Se粉末和In 2 Se 3 粉末，混合后在行星式球磨机中球磨，而后冷压成型，制得Cu 2 Se和In 2 Se 3 混合材料素坯，将此素坯置于密闭的真空烧结炉中，在H 2 保护气氛中，烧结，冷却后脱模，即得到铜铟硒靶材。

This paper presents comparisons of four technologies casting,die forging, PM forging and routine PM processing.

简要介绍并比较了用于制备汽车连杆的铸造、模锻、粉末锻造和常规粉末冶金工艺。

In the last decade of 20th century, powder metallurgy with these dominances including saving energy and materials, higher efficiency, lower pollution and cost was considered as a most creative processing technology and has been widely used in the kinds of industrial departments.

粉末冶金技术是二十世纪九十年代粉末冶金领域最具创造性的一项技术进步，它具有节能、节材、高效、近净成形、少或无污染等突出优点。

The principle part of composition in this research was the composition of FMPS iron based powder metallurgical friction material.

研究采用的铁基粉末冶金摩阻材料主体配方是FMPS型铁基粉末冶金摩阻材料基础配方。

The microstructure and the effect of powders' characteristics on the properties of the flexible metal cloth are analyzed.

分析了金属粉末柔性布成布机理及粉末特性对柔性布性能的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。