Quality Factors Of Copper Terminal Blocks

Among the many types of copper noses, copper terminal block is a special one, because this series of copper tips is made of copper and aluminum combined by professional technology, and is often used to connect aluminum cables, which not only brings good conductivity, but also has a certain transition effect.
In different regions and industries, the special names of copper distribution block are also different. Common names include copper-aluminum terminal nose, copper-aluminum terminal, copper-aluminum transition terminal, copper-aluminum transition terminal nose, copper-aluminum nose, etc. These names all represent the same product. Different industries call people differently, but the expression of copper-aluminum terminals is the same. Generally, DTL is used to indicate the meaning of copper-aluminum terminals, and the number after the model indicates the meaning of the conductor cross section.
So when choosing, don't worry too much about whether the name is the same. The key is to determine the model parameters clearly so that you can better confirm whether the size is appropriate.
The quality of copper terminal strip is mainly affected by hardware materials, mold design and electroplating materials.
The electroplating layer directly affects the life of the terminal block. In the case of gold plating and silver plating, the conductivity of silver is higher than that of gold, but the chemical stability is not as good as that of gold, resulting in a much higher film resistance than gold plating, but the cost of gold plating is very high. The touch part of the tablet is partially gold-plated, which not only ensures the improvement of application functions, but also greatly reduces the cost of the product.
The pressing and material quality of the terminal directly affect the electrical function and connection function of the terminal. The conductivity of the material directly affects the temperature rise and touch resistance, and the 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 and the lower the temperature rise. The relationship between the plug-in force and the touch resistance is a quadratic curve.
The main surface of the terminal is mainly plastic molds and hardware connection molds, and the mold planning and manufacturing quality have a great influence on the terminal parts.
At present, most screws rely on the neck to prevent falling off. The main reason for the deformation of the growth toe of the splicing product combination is that the unreasonable structure leads to unbalanced force on the two splicing falcons. Therefore, the force and deformation direction of the splicing falcon should be considered in the structural planning.