Do you know what are the common quality problems with terminal wires?

Terminal wire is mainly used for data transmission between electronic components, electronic devices, it is a kind of data transmission line, for example: the connection between PCB boards. The quality of the terminal line directly chooses the quality of electronic products, so in the manufacturing process of electronic products, the purchase of terminal line is very important.
The plastic insulating material and conductive parts of the terminal line are directly related to the quality of the terminal, they respectively choose the insulation function and conductive function of the terminal. Any one terminal failure will lead to the failure of the entire system engineering. In this regard, domestic and foreign seizures of the painful lessons are very profound. Prevention is the intention, analysis is the basis. In a sense, preventing failure is more important than analyzing failure. It is to ensure the quality and reliability of the terminals have more practical significance.
Terminals from the point of view of the use, should reach the function is: the contact part of the local conductive necessary to conduct, reliable contact. Insulation parts should not lead to the local necessary insulation and reliable. Terminals common fatal failure methods are as follows:
1, poor contact
Terminal line inside the metal conductor is the center of the terminal parts, it will come from the external wire or cable voltage, current or signal transmission to its matching connector corresponding to the contact parts. Therefore, it is necessary to have excellent contact structure, stable and reliable contact adherence and outstanding conductive function. As a result of unreasonable structural design of contact parts, material selection error, mold instability, processing scale is poor, surface roughness, heat treatment plating and other surface treatment process is unreasonable, improper assembly, storage and use of poor environmental and operational use of improper, will be in the contact parts of the contact parts and collaborative parts of the composition of the contact is poor.
2, poor insulation
The role of the insulator is to make contact with the correct position of the pieces to adhere to the placement, and make contact with the contact between the contact pieces, contact with the shell between each other insulated. Therefore, it is necessary to have excellent electrical function, mechanical function and process molding function of the insulator. Especially with the high-density, miniaturized terminals are widely used, the useful wall thickness of the insulator is getting thinner and thinner. This insulating materials, injection mold precision and molding process put forward more stringent requirements. Due to the insulator surface or internal metal excess, surface dust, solder and other pollution moisture, organic materials and harmful gases adsorption film and the surface of the water film mingled with the ionic conductive channel, moisture absorption, mold, aging of insulating materials, etc., will constitute a short-circuit, leakage, breakdown, insulation resistance is low, such as insulation and other insulation phenomena.

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