- ZHUHAI JIALI HARDWARE CO.,LTD.
- +86-756-8586520
Knurled copper nut
- Product description：The knurled nuts or other products with copper thread embedded in the main body are also called knurled nuts. It is mainly used for injection molding, metal spring, special-shaped spring, craft gift s
The definition of a copper nut is a nut made of copper material (usually leaded brass, such as H59 and H62).
The copper nuts we come into contact with in daily life are mainly hexagonal nuts or other types of copper nuts matched with bolts.
So why are copper nuts used in daily production activities? Because copper nuts have the advantages of being not easy to rust, corrosion-resistant, good thermal conductivity and strong electrical conductivity. They are generally used in environments requiring rust prevention, high temperature resistance, electrical conductivity and thermal conductivity, such as faucets, valves, electrical switches, etc.
Another main application of copper nuts is injection molding. They can be embedded into plastic parts after heating or directly used in mold injection molding. As mentioned earlier, there are hot-pressed or cold-pressed copper nuts.
A copper nut is a nut made of copper material (mostly H59 and H62 leaded brass). The common types in daily life are mainly hexagonal nuts and other types of copper nuts matched with bolts. With the advantages of being not easy to rust, corrosion-resistant, good thermal conductivity and strong electrical conductivity, it has become a preferred fastener for special working conditions.
In scenarios requiring rust prevention, high temperature resistance, electrical conductivity and thermal conductivity, copper nuts perform prominently. For example, faucets and valves need corrosion resistance, and electrical switches need electrical conductivity. Copper nuts can be perfectly adapted to ensure the stable operation of equipment. Another important application of copper nuts is injection molding. They can be embedded into plastic parts after heating or directly used in mold injection molding, including hot-pressed and cold-pressed types. Brass has good thermal conductivity. When embedding after heating the copper nut, on the one hand, the copper nut can heat up quickly, improving work efficiency; on the other hand, the heated copper nut can quickly transfer heat to the plastic part, thereby softening the periphery of the plastic hole and facilitating pressing into the hole. For mold injection molding, as we all know, the melting points of PA/NYLOY/PET are all above 200°C. After the copper nut is hot-melted into the plastic part, its temperature rises rapidly. After injection molding, the plastic body cools down, crystallizes and hardens quickly. What will happen if the copper nut is still at a high temperature? You must have guessed it correctly - the contact part between the copper nut and the plastic part will loosen or crack. Therefore, copper nuts instead of steel nuts are used in injection molding.
Brass has good thermal conductivity. When embedding after heating the copper nut, on the one hand, the copper nut can heat up quickly, which improves work efficiency; on the other hand, the heated copper nut can quickly transfer heat to the plastic part, thereby softening the periphery of the plastic hole and facilitating pressing into the hole. Then, what about the effect of mold injection molding? As we all know, the melting points of PA/NYLOY/PET are all above 200°C. After the copper nut is hot-melted into the plastic part, its temperature rises rapidly. After injection molding, the plastic body cools down, crystallizes and hardens quickly. What will happen if the copper nut is still at a high temperature? You must have guessed it correctly - the contact part between the copper nut and the plastic part will loosen or crack. Therefore, copper nuts instead of steel nuts are used in injection molding.
The appearance of copper nuts used in injection molding is generally round with various patterns pressed on them. Those used for mold hot-melting are generally cylindrical, while those for hot-pressing or cold-pressing have a certain taper or barbs on their appearance.
The products are widely used in industries such as mobile phones, laptops, various plastic casings, communications, micro-motors, computers, electrical appliances, electronics, toys, clocks, lighting, locomotives, etc.
Zhuhai Jiali Hardware Products Co., Ltd. specializes in selling various types of fasteners, including stainless steel small screws, knurled copper nuts, insert nuts, pre-embedded copper flower nuts and other kinds of nuts. We use imported materials, have a complete range of specifications, and have spot supplies of extra-long and extra-short specifications. Welcome to call for consultation.
