Shanghai Daoqin Plastics Co., Ltd.

         day active in,我们 Common mold can can large separation is using/adopting manufacturing,而 use mold 钢时,我们会发现会发生一 defect,而导致 mold can positive use,甚至造 formed manufacturing parts deformation,而 different use. therefore in use mold 钢时, need understanding its Common defect and anti measures.

        1, deformation

        材 material deformation causes is due to manufacturing is reduce cost,实际 using/adopting mold material non specialized mold 钢材,模 sheet/plate rigid property 不足, thick degree 不够,造 formed deformation.

        预 anti measures:① in manufacturing precision complex mold 时, need amount selection carbon material relatively small mold 钢,不 need 图便宜, selection small production relatively 差钢材. ② for in carbon material heavy mold need combined 理锻造, carbon material block, reduce carbon material non-uniform distribution and other grade,消 remove property can toward property. ③ for rear mold need 进行调质 hot 处理, make obtain carbon material distribution uniform, fine small and dispersion 索氏体组织, from decrease/reduce precision complex mold hot rear deformation. ④ for/regarding dimensions relatively large or method mold, can using/adopting solid solvent di fine 化处理, make carbon material fine 化, distribution uniform,棱角圆整化, can to decrease/reduce mold hot deformation 目.

        2, fracture

        锻打 mold material due to temperature degree control 不当,本身就 already cracking,碰 to this type of 情况, has sheet/plate. production in cracking fracture sheet/plate,往往 is selection material hot hardness high,应 force large formed. welding easy crazing phenomenon,严 heavy 时, especially in welding Cr12 hard material easy cracking. sheet/plate force large, cracking large more in type 腔尖角, if also can use, can 穿孔割工字形镶拼,也 can in sheet/plate 周围抱住.

        3, abrasion loss

         mold in active parts hardness 不够, has 锋角, material selection and other is formed abrasion loss causes. for/regarding property strong/high products and has versus hardness, has filler plastics,我们 selection material surface need corrosion resistant and surface hardness need high.

        4, dispersion hot defect

         long mold dispersion hot property versus important, selection 适当 材 material for/regarding product appearance and product output/production volume very large 差距. selection has and 钴 铍 copper and other material,经 hot rear has relatively high strong/high degree, hardness, fatigue resistance, wear resistance and very good hot property.