HPM50 Suppliers | AsiaVest steel mold (certified) | Ani HPM50 provided by the Dongguan City An Yongwei steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) is specialized in the "mold steel, DC53, SKD11.SUS440C, SUS420" business, the company adhering to the "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Simon / R. Tempering should be sent within two hours in small molds or parts, or vulnerable to cracking quality accident. In order to prevent the finished workpiece surface hardness and wear resistance decarbonization cause lower import HPM50, recommend the use of vacuum heat treatment furnace. Should be used when placing the right amount of resistance heat treatment furnace iron shavings to protect them. DF-2 material in a metal mold to soften the annealing process to improve the cutting performance, and for hardened steel, softening annealing temperature is 780 holding a certain time (at least 2 hours or more) HPM50, in a furnace at a cooling rate of not more than 15 per drop to 650 after opening the door to cool to near air temperature, after annealing hardness of about 190. DF-2 Mould material during stress relief annealing after rough machining precision molds, should be stress relief annealing treatment, stress relief annealing method is the workpiece is heated to 650, soaking 2-4 hours, slowly cooled in the furnace to less than 350 after HPM50 manufacturers, baked cooled in air. Forging mold or metal die-casting mold HPM50 prices, require a very low surface roughness. Once this type of mold thermal fatigue cracks, it can not continue in service. Therefore, these service life of the mold, mainly determined by the thermal fatigue crack initiation time for ordinary die allows a certain size thermal fatigue cracks. Thus, the life of the mold, depending on the thermal fatigue crack initiation and propagation speed at the time when the cold extrusion of metal black, thermal effects due to the severe deformation of the metal flow generated by the mold temperature, sometimes up to 150 ^ 4000C. Mold cyclical temperature changes may also cause thermal fatigue cracking and failure