How to choose the material of battery shrapnel

Battery shrapnel is a kind of hardware shrapnel. Suitable materials include iron, nickel, manganese steel, brass, phosphor bronze, etc. The specific selection should be based on the actual situation of the plastic shell structure and the value of the product and the use environment. Look.　　 Generally speaking, cold plate nickel plating is sufficient for battery shrapnel. After nickel plating, the effect is very good and the cost is also very low. If your product is used in a humid environment, you can also consider using brass, which will cost several times higher. Ordinary cold plate nickel-plated in our factory can pass salt spray for 72 hours without rusting after sealing oil. Another type of shrapnel-type battery spring is generally made of manganese steel (65M) or phosphor bronze. Some customers may think that stainless steel is more flexible, but you did not consider that the stainless steel material is not sticky to tin, that is, You have no way to solder or it is difficult to solder. In fact, the elasticity of manganese steel after heat treatment is almost the same as that of stainless steel. The material of phosphor bronze is also commonly used for this kind of products, with good elasticity, no rust, low resistance, and easy welding, but the cost of phosphor bronze is higher.