查询词典 solder

In addition to, the thinness of the intermetallic layers of Sn-Ag-Cu with the copper plate are compared with that of Sn37Pb. The results show that Ag、Cu has influence on the solidus temperature, spreading property, electrical conductivity of alloy. The solder shows more favorable combination property as content of Ag is 3% and content of Cu is 2.8%.

在众多无铅焊锡合金中，Sn-Ag-Cu系无铅焊锡合金以其优良的润湿性能及力学性能已被普遍认为是最有潜力的含铅焊锡合金的替代品，一些大的科研机构和制造商纷纷推出自己所推崇的Sn-Ag-Cu合金成分，例如：美国AMES 实验室选用的合金成分为Sn-4.7Ag-1.7Cu[1]，Ericsson公司选用的合金成分为 Sn-3.8Ag-0.7Cu[2]。

Synthesizing and processing technics ; free-lead solder alloy ; solidus temperature ; spreading property

材料合成与加工艺；无铅焊锡合金；熔点；铺展性

The influence of spheroidization temperature on the real sphericity and the surface appearance of the solder ball were investigated.

本文采用切丝重熔法制作钎焊球，研究了球化温度对63Sn37Pb钎焊球真球度和外观质量的影响。

I used 16 awg speaker wire and solder wire pieces for sprue networks.

我用16 AWG的喇叭线和焊锡丝件为直浇道网络。

This paper designs a stenciler, with the precision of linear displacement 0.1mm , maximum back-and-forth rate Vmax=1.5m/min and maximum distance 400cm ,which can be applied to various PCB solder printings.

本文设计一台模板印刷机，线性位移定位精度0.1mm，最大进退速度Vmax=1.5m/min，最大行程400cm，可广泛应用于各种PCB焊膏印刷的场合。

Based on the analysis and practice of the ultrasonic soldering process, the results show that it is important to procure high soldering quality on controlling submersion depth, the ultrasonic soldering time, assembling clearance and solder composition.

根据对超声波钎焊工艺的分析和实践，结果表明控制产品在钎焊时的浸没深度与产品装配间隙、超声波钎焊时间和钎剂成分是获得高钎焊质量的重要条件。

Degaussed confirmed resistance, the first removed to take one's time, it can carefully look at the two of the solder around the pin whether or not there are cracks, if any, may be whether it can be passed to try repairing troubleshooting.

确认消磁电阻后，先不忙拆下来，可仔细看一下它的两个引脚周围的焊锡是否有裂纹，如果有的话，可尝试一下是否能够通过补焊排除故障。

DIP THE TERMINAL WITHIN 7mm FORM THE EDGE INTO FLUX FOR 5 TO 10 SECONDS THEN ADJUSTING THE SOLDERING TEMPERATURE TO 230±0.5℃,WIPE THE SOLDERING DREGS AND BURNED FLUX FROM THE MELTED SOLDER,NEXT DIP THE TERMINAL 5mm FROM THE EDGE ,DIP TIME 3±0.5SECONDS.

将端子前端7MM处浸入溶剂中5-10秒，并调整焊锡温度到230±5℃，然后溶解溶剂，使溶液完全燃烧，再拭去端子上的溶剂残渣，再将端子前端5MM处浸入溶剂3±0.5秒，然后拿出使其自然冷却25.4秒±6.4秒后，再将溶剂洗去，经上述步骤后，导线需符合下列情形

In this study, the actual temperatures in different solder joints were below 100°C, which did not induce magnificent atoms thermodiffusion to submerge electromigration.

数值模拟表明，电流密度聚集是产生电迁移失效的根本原因，焊点的实际温度低于100°C，避免了高温下原子热扩散对电迁移的干扰。

I only used the torch on the outside of the boiler as I wanted the heat to pull the solder thur to the rivets heads on the outside.

我只用过的火炬，对外面的锅炉，正如我希望的热拉焊星期四向铆钉元首对外部。

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。