What is the main mold steel used in the mobile phone shell mold?
At present, the mobile phone case (mobile phone protective cover) we use is mainly plastic and silicone two materials, of course, there are also people like personalized needs, so a small number of mobile phone cases are metal, and the corresponding mold is plastic mold steel and cold mold steel.
When choosing materials, we must first understand the general requirements of mobile phone shell products for molds:
1. Requirements on service life;
2. In the finish, that is, the requirements of the polishing of the die steel.
Mobile phone case mold
Therefore, in the selection of die steel material is more open, mainly to see how the product side of the shell quality requirements.
Therefore, the general mobile phone plastic shell with 45#, P20 this plastic mold steel can be, the price is relatively cheap, but also basically meet the requirements, P20 is currently the most widely used a variety, if it is iron will generally use Cr12, Cr12MoV and other cold work mold steel.
Of course, some products have relatively high quality requirements, after all, the mobile phone shell is a relatively sophisticated thing, so the plastic mold will use 718, or S136, 2344 heat treatment to HRC48-52 degrees. For stamping, D2, SKD11 will be used.
Mobile phone case mold
And some manufacturers will use NAK80, no heat treatment, and polishing performance is ideal.
In short, the mobile phone shell mold generally uses general mold steel, unless there are relatively high requirements, depending on the demand. What do you think, welcome to leave a comment