The definition of copper nut is a nut made of copper material (usually lead brass, such as H59, H62) The copper nuts we encounter in our daily lives are mainly hexagonal nuts or other copper nuts that match bolts. So why are copper nuts used in daily production activities? Because copper nuts have advantages such as low rusting, corrosion resistance, easy heat conduction, and strong conductivity, they are generally used in environments such as rust prevention, high temperature, conductivity, and heat conduction, such as faucets, valves, electrical switches, etc.
Another main use of copper nuts is injection molding, which can be embedded into plastic parts after heating or directly molded for injection molding.
Brass has good thermal conductivity. If a heated copper nut is embedded, on the one hand, the copper nut can quickly heat up and accelerate work efficiency. On the other hand, the heated copper nut can quickly transfer heat to the plastic part, making the periphery of the plastic hole softer and easier to press into the hole; So, what would be the effect of using molds for injection molding? As is well known, the melting point of PA/NYLOY/PET is above 200 ° C. After the copper nut is hot melted into the plastic part, the temperature quickly increases. After injection molding, the plastic body quickly cools, crystallizes and hardens. If the temperature of the copper nut is still high, what will be the result? Smart you must have guessed, but the result is that the copper nut is loose or cracks appear at the contact point with the plastic part. So copper nuts are used in injection molding instead of steel nuts.
Dongguan Sanhe Machinery Co., Ltd. specializes in customizing copper alloy accessories. Our main products include copper sleeves, copper bushings, copper worm gears, copper guide plates, copper ball seats, etc