电子工艺技术
電子工藝技術
전자공예기술
ELECTRONICS PROCESS TECHNOLOGY
2013年
6期
345-348,370
,共5页
张彬彬%杨猛%张振明%万成安%何宗鹏
張彬彬%楊猛%張振明%萬成安%何宗鵬
장빈빈%양맹%장진명%만성안%하종붕
锡铅共晶焊料%蠕变%低应力
錫鉛共晶銲料%蠕變%低應力
석연공정한료%연변%저응력
SnPb eutectic solder%creep%low-stress
系统介绍了某型号航天器电缆网上的焊点低应力断裂问题的原因、产生过程及机理分析。通过对电连接器结构、装联工艺和断口特征的分析,故障定位为:电连接器的特殊结构形式导致在尾罩处理过程中导线无法留有应力余量,而在安装应力直接作用下导致焊点断裂。同时,指出了本案例的启示意义。
繫統介紹瞭某型號航天器電纜網上的銲點低應力斷裂問題的原因、產生過程及機理分析。通過對電連接器結構、裝聯工藝和斷口特徵的分析,故障定位為:電連接器的特殊結構形式導緻在尾罩處理過程中導線無法留有應力餘量,而在安裝應力直接作用下導緻銲點斷裂。同時,指齣瞭本案例的啟示意義。
계통개소료모형호항천기전람망상적한점저응력단렬문제적원인、산생과정급궤리분석。통과대전련접기결구、장련공예화단구특정적분석,고장정위위:전련접기적특수결구형식도치재미조처리과정중도선무법류유응력여량,이재안장응력직접작용하도치한점단렬。동시,지출료본안례적계시의의。
The cause, forming process and mechanism of a case of lower-stress fracture of solder of the electrical cable of a satellite are systematically presented. Through the analysis on the electrical connector, the process and fracture surface, The fault was located in the special structure of the electrical connector lead the problem of reserving the stress relief of the cable, and the stress acted on the solder, so the solder joints fractured. Also point out its enlightenment.