What affects the quality of the terminal block?

In terms of hardware materials, it is necessary to conduct current and must be flexible parts, such as the pressure piece of the terminal. The quality of the material directly affects the electrical function and connection function of the terminal, and plays a pivotal role in the electrical connection. The planning 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 touch resistance, the quality of elasticity is related to the chemical elements, elastic modulus, hardness, and tensile strength of the material. The greater the conductivity of the material, the smaller the touch resistance, the greater the temperature rise. Low, the relationship between the plugging force and the touch resistance is a quadratic curve.

The main surface of the wiring terminal is mainly made of plastic molds and hardware connection molds. The quality of mold planning and manufacturing has a great influence on terminal components. Product structure: such as screw anti-dropping, spliced products with arc-shaped front and back, deformation of long digits, shrinkage deformation caused by uneven wall thickness, etc. There are currently the following types of screw anti-dropping: three ribs anti-dropping, hoop anti-dropping, neck anti-dropping, stamping anti-dropping. Due to the influence of skills and craftsmanship, there are not many options for neck anti-dropping, and most of them use neck openings. The main reason for the problem of deformation of the growth digits of the splicing product combination is that the unreasonable structure leads to the unbalanced force of the two spliced falcons in the front, rear, up, and down, as shown in the structure planning. Deformation direction.

CTI parameters must meet the requirements when planning, which directly affects whether the final product can pass the impulse withstand voltage and aging resistance experiments. According to the UL regulations, 25 percent of the recycled material can be used with 75 percent of the new material and mixed thoroughly, especially for some products that can withstand high current and high voltage, the use of recycled material should be lower or not Add.

In terms of electroplating, the electroplated film layer is also the main factor that directly affects the life of the terminal. As far as gold plating and silver plating are concerned, the conductivity of silver is higher than that of gold, but its chemical stability is not as good as gold, and the film resistance caused by it is much greater than that of gold plating. However, the cost of gold plating is high. Electroplating gold is only recommended for products that are used in acidic or even harsher environments, and part of the touch part of the tablet is selected to be gold-plated. This will ensure that the application function is improved and the product cost is greatly reduced.