Abrasive grinding abrasives can play a role in the most fundamental factor in the import S7, very much the kind of abrasive, the principles chosen to be consistent with the material properties of the workpiece. S7 mold when selected, you also need to consider when abrasive grinding abrasive workpiece material and the thermal stability of the chemical reaction between the abrasive and abrasive etc. To select the desired particle size and the grinding efficiency considering the roughness of the working surface. When a large surface contact area abrasive and bows, or when grinding depth is large, you should choose the coarse granularity of abrasive. And the particle size of the coarse abrasive friction surface is small, heat generation is also small. Hot work die steel is mainly used in the manufacture of high temperature state of the workpiece machining mold pressure. Such as: hot forging dies, hot extrusion dies, die-casting molds, hot upsetting mold. Common hot die steel are: alloy tool steel high carbon content added Cr, W, Mo, V and other alloying elements; special requirements for hot work die steel S7 material, sometimes made of high alloy austenitic heat resistant mold steel. Because many varieties of plastic, plastic products, requirements differ greatly, for the manufacture of plastic mold material also made a variety of performance requirements. Therefore, many industrialized countries have formed a wide range of plastic mold steel series. Yong Wei steel mold (Dongguan) Co., S7 material, S7 is provided by Yong Wei steel mold (Dongguan) Limited. Search for "mold steel, DC53, SKD11.SUS440C, SUS420" fly suppliers, network operators choose to have a full alliance Certified: Dongguan City An Yongwei steel mold shop (www.dgyongwei.com), trustworthiness and reliability, now click on "Commercial Union customer service" on page live chat with us now!