Analysis of crimp terminals short-term tolerant flow

HUANG Zhao-ming, GAO Yue-xin, LI Xiang-fei, ZHANG Shan-xia, WEI Wei

                                                                    (CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China)

Abstract: Aiming at researching EMU crimping terminals overload capacity, designed the reasonable crimp matching group with thirteen different cable diameters and eight crimping pliers, resulting samples were short-term tolerance flow tested, the crimp resistance value was measured during test, resistance change rate was calculated, it was analyzed by software Origin7.5, crimping process and matching relationship between cable diameter and crimping pliers were studied. The results show that matching relationship between cable diameter and crimping pliers leads to different overload capacity of crimp terminals, and crimping process also has influence on its performance. in order to obtain high quality thermal performance crimp terminals, different types of crimping pliers should be used for different diameter clamps, and crimping quality should be strictly controlled to improve crimping process.
Key words: EMU terminals; short-term tolerated flow; overload capacity; test analysis