Die meet the technical performance requirements of mold manufacturing generally go through forging, machining, heat treatment, several processes. To ensure the quality of the mold manufacturing, reduce production costs, the material should have good malleability, machinability, hardenability, hardenability and can be grinding; also have a small oxidation, decarbonization sensitivity and quenching deformation cracking tendency.

    Meet the economic requirements of the mold to mold at the time of selection, we must take into account the principle of economy, as much as possible to reduce manufacturing costs. Thus, to meet the performance of the premise, the first choice of low price, do not use carbon steel, do not use domestic materials imported materials.

    a. annealing process ball wide temperature range, low annealing hardness and small fluctuation range, the ball higher.

    b, cutting a large amount of cutting tool, low loss, low surface roughness.

    c, after quenching hardenability can get deeper hardened layer, using mild quenching medium can be hardened.

    d, quenching distortion cracking tendency conventional quenching small volume change, shape warping, slight distortion, abnormal deformation tends to be low. Conventional quenching cracking sensitivity is low, and the shape of the workpiece quenching temperature insensitive.

    e, can be grinding wheel is relatively small loss, no limit grinding burn a large amount of cooling conditions and the quality of the grinding wheel is not sensitive, less prone to injuries mill grinding cracks.

    f, malleable with lower deformation resistance of hot forging, plastic, forging a wide temperature range, forging crack cold cracking and network carbide precipitation tends to be low.

    Antioxidant when g, oxidation, decarbonization sensitivity pregnant heated to high temperatures can be good, decarbonization slow heating medium is not sensitive to pitting tendency of small.

    h, quench hardenability after having uniform and high surface hardness.

    In addition, when the selection should also consider the production and supply of the market, and focus on selected steel should be minimal and easy to buy.

    Learn the selection of knowledge of the mold can make a better play the advantages of the mold. In order to open a better and better mold