If the fixing is not good, the light one will affect the contact reliability, resulting in instant power failure, and the serious one is product disintegration. Disintegration refers to the abnormal separation between plug and socket, between pin and Jack caused by unreliable structure due to material, design, process and other reasons when the terminal is in the plug-in state, which will cause serious consequences of power transmission and signal control interruption of control system.

由于設計不可靠、選材錯誤、成型工藝選擇不當、熱處理、模具、裝配、熔接等工藝質量差、裝配不到位等都會造成固定不好。遇到接線端子固定不好該怎么辦呢？

Due to unreliable design, wrong material selection, improper selection of molding process, poor quality of heat treatment, mold, assembly, welding and assembly in place, the fixation is not good. What should I do if the terminal is not fixed well?

在電裝時經常發現個別芯壓接導線送不到位，或送到位后鎖不住，接觸不可靠。分析原因是個別安裝孔螺牙處有毛刺或臟污卡死。特別是使用廠已電裝到一個插頭座的幾個安裝孔，發現該疵病后只得將已安裝好的其它孔壓接導線一一卸出，重新更換插頭座。此外，由于導線線徑與壓接孔徑選擇配合不當，或由于壓接工藝操作失誤，還會造成壓接端不牢的事故。

It is often found that the individual core crimping wire is not delivered in place, or cannot be locked after it is delivered, and the contact is not reliable. The reason is that there is burr or dirt on the screw teeth of individual mounting holes. In particular, the user has installed several mounting holes in a plug socket. After finding this defect, he has to remove the crimping wires of other holes one by one and replace the plug socket again. In addition, improper matching of wire diameter and crimping hole diameter, or wrong operation of crimping process will also cause the accident of crimping end not firm.

為此，生產廠在成品出廠前要對交貨的插頭(座)的樣品所有安裝孔進行通測，即用裝卸工具將壓接有插針或插孔的導線摸擬送到位，檢查能否鎖住。根據產品技術條件規定，對逐根壓接導線進行拉脫力的檢查。

For this reason, before the finished products leave the factory, the manufacturer should carry out through test on all the installation holes of the delivered plug (socket), that is, use the loading and unloading tools to send the wires with pins or jacks to the place, and check whether they can be locked. According to the product technical conditions, check the pull-out force of each crimping wire.

接線端子就是用于實現電氣連接的一種配件產品，工業上劃分為連接器的范疇。隨著工業自動化程度越來越高和工業控制要求越來越嚴格，接線端子的用量逐漸上漲。隨著電子行業的發展，接線端子的使用范圍越來越多，而且種類也越來越多。用得廣泛的除了PCB板端子外，還有五金端子，螺帽端子，彈簧端子等等。

Terminal is a kind of accessory product used to realize electrical connection, which is divided into connector category in industry. With the increasing degree of industrial automation and industrial control requirements are more and more strict, the consumption of terminals is gradually increasing. With the development of electronic industry, more and more terminals are used, and the types are more and more. Widely used in addition to PCB terminals, there are hardware terminals, nut terminals, spring terminals and so on.