Nagaoka T,Morisada Y,Fukusumi M, et al.Strength and corrosion resi-stance of a solder joint in ultrasonic soldering of aluminium using quasi-melting solder. Welding International . 2009Nagaoka T,Morisada Y,Fukusumi M, et al.Strength and corrosion resi-stance of a solder joint in ultrasonic ...
3.The failure process of soldered joint in SMT was investigated byelectrical resistancemeasurement method and crack observation method.通过研究焊点在热疲劳过程中的电阻值变化和热疲劳裂纹的扩展过程,来比较传统锡铅钎料焊点和无铅钎料SAC305焊点的热疲劳破坏规律。 3)resistance value电阻值 1.In connection with...
For multiwire PV using low temperature alloys, cracking of the solder joint has been observed in a commercial module subjected to dynamic mechanical loads, Fig. 2. The thermomechanical fatigue of the low temperature alloys has not been investigated for the longer timescales required of PV modules...
When the other welding parameters, change the timing of the mixing head pressure of 0.4 to 0.8 mm, and the solder joint shear resistance as the pressure is increased to gradually increase in 0.7 mm, the maximum value is 4.448 KN 翻译结果5复制译文编辑译文朗读译文返回顶部 ...
amorphous solder taperegression equationsjoint strength determinationcoatingThe main factors of the process of electric resistance welding of a metallic strip through an amorphous solder tape are determined. Regression equations are derived for the determination of the strength of the joint between the ...
In today’s electronic systems the use of excessive pressure can createstresses detrimental to a system. For example, delicate leads and solder jointscan be broken and circuit boards can lose their planarity from excessivepressure. In most cases pressure over 50 psi is damaging. Often 10 ...
TheDRAGONFLY Next> provides optical inspection of THT components: the combination of multi-colored LED lighting and color scan camera enables detailed inspection of the solder joint meniscus and shorts detection, while the full scan acquisition of the PCB surface and not only of the components allow...
6) microstructure of soldered joint 焊点显微组织补充资料:不锈钢的耐蚀性能 腐蚀的种类和定义 一种不锈钢可在许多介质中具有良好的耐蚀性,但在另外某种介质中,却可能因化学稳定性低而发生腐蚀。所以说,一种不锈钢不可能对所有介质都耐蚀。 在众多的工业用途中,不锈钢都能提供今人满意的耐蚀性能。根据使用的经验...
Improved solder joint reliability by excellent connect reliability material. Available for high voltage application by good to insulation reliability. Circuit Board Materials Part Number Highly heat resistant Low CTE multi-layer circuit board materials <High-Tg type> Laminate R-1755DPrepreg R-1655D ...
unsoldering tip for simultaneous liquefying and removing solder from a joint 发明人：Toth Attila 申请号：US06/531426 申请日：19830912 公开号：US04495403A 公开日：19850122 专利内容由知识产权出版社提供 摘要：An unsoldering tip for an electrical apparatus for unsoldering of soldering joints and for ...