Where is the advantage of barrel nuts screw The copper […]
Where is the advantage of barrel nuts screw
The copper and stainless steel barrel nuts screw we come into contact with in our daily production are mainly hexagonal copper nuts or other copper nuts that match the bolts.
Why are copper nuts often used in daily production? barrel nuts screw Because copper nuts have the advantages of not being easy to rust, anti-corrosion, easy to conduct heat, and strong electrical conductivity, they are generally used in rust prevention, high temperature, electrical, and thermal environments, such as faucets, valves, electrical switches, etc.
The other main purpose of copper nuts is injection molding, which is embedded into plastic parts after heating or direct injection molding. As mentioned above, brass has good thermal conductivity. If it is embedded after heating copper nuts, on the one hand, copper nuts It can heat up quickly to speed up the work efficiency. On the other hand, the heated copper nut can quickly conduct heat to the plastic part, so that the periphery of the plastic hole becomes soft and facilitates pressing into the hole. So, what if the effect of injection molding is used?
As we all know, the melting point of PA/NYLOY/PET is above 200°C. The temperature of the copper nut is quickly increased after being melted into the plastic part. After injection molding, the plastic body is rapidly cooled and hardened. If the temperature of the copper nut is still at a high temperature, What will be the result? You must have guessed it cleverly. The result is that the place where the copper nut contacts the plastic part develops loose or cracks. Therefore, stainless steel nuts made of copper are used in injection molding instead of steel nuts.