What are the silicone mold steel models?
2023-12-29
In the silicone industry mold steel and other hardware supplies steel has the difference in hardness, such as screws, steel plate their hardness is much lower than the hardness of the mold steel material, and silicone mold steel is divided into a variety of different categories, the current common steel models in the industry are as follows: 1. S50-S55 steel 55# medium carbon mould steel, the hardness of this steel is 170-220HB. The material is cheap, CNC cutting is easy, so the mold of this steel is good processing, which is used as the mould pin and mold base of the mold in many industries and some unimportant parts, few products in the silicone industry use this steel, If the silicone products produced by this steel are used, one is that the flash parting line will gradually become larger, the closing line of the mold will be visible, and the mould life will be reduced. Mold cost is low! 
2. P20 steel P20 mold steel is one of the most common materials of silicone mould, its hardness data is 26-32HRC, it makes silicone mold for conventional models, good polishing, electrical corrosion, used in many daily necessities and daily products is better, use it to make large and high requirements of silicone products, the current conventional model minimum standard will choose it! 3. 718 steel This steel is a high-quality material with a hardness data of 330-370HB, which is a material of high hardness and high toughness. The steel is hard cut, difficult to process, and does not need quenching and tempering treatment. Its mould life is longer than P20, it has good polishability, smooth surface without sand holes, and it is used for large-scale silicone rubber products and large-scale long-term use products. It is used in most plastics injection mould. 4. NAK80 steel
NAK80 is a high-quality medium carbon alloy steel, hardness data in 32 ~ 43HRC, good toughness, wear resistance and corrosion performance, silicone rubber mold used for sunning and need surface treatment mould surface selection it is more advantageous, it belongs to the manufacture of small and medium-sized products and products with high surface requirements, its hardness can be improved by heat treatment. The life of the mold is not much different from 718, and it is also a high-quality mold steel. There are many kinds of mold steel, so in the silicone products to choose a high-quality steel can improve the performance of all aspects of the silicone product and processing efficiency, so in the selection of the recommended minimum standard according to P20 steel, different types of steel can be used in different industries, in life, automobiles, home appliances, construction, aerospace and other different fields have different needs.
