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Mobile WebSiteIn terms of hardware materials, it is necessary to control the electrical properties and connection performance of components with on-current and must-have elasticity, such as the compression of the terminals. It plays an important role in the electrical connection. The design of the terminal block is an important factor in determining the quality of the terminal block. Because the conductivity of the material directly affects the temperature rise and contact resistance, the elasticity is related to the chemical element, elastic modulus, hardness and tensile strength of the material. The greater the conductivity of the material, the smaller the contact resistance is. Low, the insertion force and the contact resistance are in a quadratic curve relationship.
The main surface of the terminal is mainly made of plastic mold and metal continuous mold. The quality of mold design and manufacturing has a great impact on the terminal components. Product structure: such as screw anti-drop, spliced products are curved before and after, long-term deformation, etc., shrinkage deformation caused by uneven wall thickness. There are several types of anti-dropping of the screw: three ribs prevent it, the hoop mouth is prevented from falling off, the neck mouth is prevented from falling off, and the stamping is prevented from falling. Due to the influence of technical processes, the neck sling is not used much, and most of the neck rims are used. The main reason for the deformation problem of the number of digits in the splicing product combination is that the two splicing ridges are unbalanced in the front, rear, left and right directions due to the unreasonable structure. The force of the splicing shackles should be considered in the structural design. Direction of deformation.
The CTI parameters must meet the requirements during design, which directly affects whether the final product can pass the impact withstand voltage and aging test. According to UL regulations, no more than 25% of the recycled material can be mixed with 75% of the new material and mixed thoroughly. Especially for some products that withstand high current and high voltage, the use of recycled material should be lower or not. Add.
In terms of electroplating, the plating layer also directly affects the main factors of the life of the terminal. In the case of gold plating and silver plating, silver has a higher electrical conductivity than gold, but its chemical stability is not as good as gold, and the resulting layer resistance is much greater than gold plating. However, the cost of gold plating is high. It is recommended to use electroplated gold only for products with acidic environment or harsher application environment, and partial gold plating is applied to the contact parts of the tablet, so that the use performance is improved and the product cost is greatly reduced.
