查询词典 lead-antimony-tin alloy

These problems are associated with the surface tension of molten solder alloy. Furthermore, the use of lead is going to be regulated in the electronics industry because of its toxicity.

在电路板上就可能出现诸如元器件错位、桥接短路的问题，这些问题与钎料的表面张力有着直接的关系。

Core adjusting rolling bearing type 22300 has 2rows of symmetry rolling spherical and copper alloy suppting frame,there is no fixed circlip in inner circle,the roller is the longer type,it has the abillity to support more load,the circlip will lead while moving,it has the better performance of core adjusting,also it can compensate the tolerance of coaxiai degree.

调心滚子轴承22300CA型具有两列对称球面滚子和铜合金实体保持架，内圈无固定挡边，滚子加长，承载能力大，活动中挡圈由内圈引导，调心性能良好，能补尝同轴度误差。

To take the lead in the introduction of Germany's leading science and technology DESMA advanced injection molding machine, the use of imported high-grade leather to create and guide the international mainstream of Special Process PU / PU, TPU / PU, PU / RB Rubber extremely high quality of the stability of safety shoes, self-developed patented light quality aluminum alloy Baotou, Baotou steel Antimagnetic insulation, anti-static pressure shocks Baotou Steel, Antimagnetic, anti-wear steel soleplate puncture.

以科技领先率先引进德国DESMA先进注塑机，采用进口高档牛皮制造引导国际主流的特种工艺PU/PU、TPU/PU、PU/RB橡胶等高品质稳定性极强的安全鞋，自主开发专利性轻质的铝合金包头、绝缘防磁塑钢包头、防冲击静压钢包头、防磁、防剌穿钢中底板。

Thermal oxidation treatment can increase the surface hardness and elastic modulus significantly and reduce the E /H ratio of the TC4, which indicate the treatment can enhance the wear resistance of TC4 alloy. Long time treatment can increase the thickness of the oxide layer, but the outside layer is apt to desquamate during the scratching. The oxide layer closing to substrate has better bonding properties, but microcrack forms as a result of high stress loading, which lead the layer to flake off completely.

长时间的高温氧化可以增加氧化层的厚度，但在划擦过程中氧化层发生两次脱落，表明氧化层由外表层和次外层组成，外层结合力差，易发生一次脆性剥落，内层与基体的结合强度较高，但在较大载荷作用下会产生微裂纹，导致氧化层的二次剥落。

Follow, we magnify the electrobath, in the flow electrobath with lead as working electrode and titanium ruthenium alloy as auxiliary electrode.

接着，我们对电解槽进行了放大，在流动型电解槽中，以铅电极为工作电极，钌合金电极为对电极，电解产率为96.49％。

Electrotype: A duplicate relief printing plate made electrolytically by depositing copper on a wax mould taken from an original plate or type and backing it with a lead alloy.

电铸版：是一种复制凸版式。先用蜡在原身版式或字版上套出铸模，把铜用电解法沉积于蜡铸上，然后用铅合金衬背而成。

A simple method based on hydride generation-AFS for the determination of As in lead-based alloy s was developed.

建立了以HG-AFS测定铅基合金样品中砷的简单方法，研究了共存元素可能引起的干扰并成功地加以解决，优化了氢化物发生条件及仪器的工作参数。

" Niello: Black metallic alloy of sulfur with silver, copper , or lead, used to fill designs that have been engraved on the surface of a metal object, usually of silver."

黑金镶嵌：银、铜或铅的硫化黑色合金，用来镶嵌金属表面雕刻的图案。

Typical application: Co-WC powder, chrome oxide powder, Lead sesquioxide powder, Chromium carbide powder, zirconium oxide powder, Ni Base Alloy-Chromium Carbide,etc.

典型应用：钴碳化钨粉、氧化铬粉、三氧化二铅粉、碳化铬粉、氧化锆粉、镍铬碳化铬粉、钴铬铌钇粉等。

On the basis of the fundamental theory as illustrated in binary Pb-Ag system,a segregating method by crystallization has been adopted to separate lead from lead-silver bullion of 20-25wt% Ag,and thus a production alloy more than 90 wt % Ag was obtained.

根据 Pb—Ag 二元相图的基本理论，采用凝析结晶分离的方法，分离铅银合金，使合金中的含 Ag 量由20～25%富集到95%以上，并探索了分离过程中的一些基本规律和现象。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新