Can tinplate be shielded?
For tinplate shielding, it is a kind of shielding material, at present 3 applications more cheap, processing is good, but the finished long-term placement of rust on the fracture surface, thus affecting the weldability, which is its only drawback. If it is placed in a short time, it will not affect weldability. Electroplating is not the best way to solve the problem. My supplier is coated with an anti rust paint on the fracture surface, and then ultrasonic cleaning is done before going on line. But I mostly use "ocean shield frame copper to make," a little expensive, but the performance is very good ^_^
Two kinds of materials of tinplate and paktong in general: tinplate is cheaper, weldability is good, but easy to rust, and relatively soft, compared to a large shield narrow cover will have problems. Alpaka relatively high prices, the weldability is poor, but can provide performance through tin, relativelyhard. At present, the use of shielding in the mobile phone, these two materials are more, but taking into account the cost or priority of tinplate
But the tin incision as mentioned above is easy to rust, now the mobile phone but also through the salt spray test, so the comparison with foreign paktong insurance. I was listening to the supplier of phosphor bronze, copper - and Ocean high strength, good solderability, a little expensive Yu Yang white copper, but the large amount of words is not obvious! The shield is also made of stainless steel, but because of poor weldability, it is only used on two pieces of COVER (COVER, FRAME)! I don't know. Is that right?
With the production of mobile phone shielding materials I know the ocean (Cupronickel), copper, tin phosphor bronze (TIN), these three kinds of material weldability are very good, because the surface of tin!
