众所周知，注塑模具材料的选择决定了其质量，而注塑是塑料成型加工中不可缺少的环节，其在模具总产量中的比重逐年增加。它占整个成型模具的33%左右，因此它在国民经济中的地位越来越重要。

As we all know, the choice of injection mold materials determines its quality, and injection molding is an indispensable link in plastic molding processing, and its proportion in the total mold output is increasing year by year. It accounts for about 33% of the whole forming mold, so it plays a more and more important role in the national economy.

影响塑件模具寿命的主要因素有：模具结构、模具材料、模具加工质量、模具工作状态、产品零件状态等。在这个过程中，模具材料本身的性能和热处理起着关重要的作用。.

The main factors that affect the service life of plastic parts mold are: mold structure, mold material, mold processing quality, mold working status, product parts status, etc. In this process, the performance and heat treatment of die materials play a crucial role

目前，大多数碳钢模具钢因其低廉、使用方便、具有一定的力学性能而被广泛使用。除塑料模具钢外，还包括预硬化塑料模具钢等其他模具钢。其中，模具钢的种类很多。目前常用的有预硬塑料模具钢、渗碳塑料模具钢和时效硬化塑料模具钢。硬化塑料模具钢是加工钢材时应用的硬度规则。这种钢具有优良的切削性能，可在型腔内直接加工。一般用于大量塑料制品的加工，如镜面模具等，以32~40HRC来计算硬度。

At present, most carbon steel die steels are widely used because of their low price, convenient use and certain mechanical properties. In addition to plastic die steel, it also includes pre hardened plastic die steel and other die steel. There are many kinds of die steel. At present, there are pre hardened plastic die steel, carburized plastic die steel and age hardening plastic die steel in common use. Hardened plastic die steel is the hardness rule applied when processing steel. This kind of steel has excellent cutting performance and can be machined directly in the mold cavity. It is generally used for the processing of a large number of plastic products, such as mirror mold, and the hardness is calculated by 32~40hrc.

注塑制品质量好，要求型腔表面粗糙度值小。如果要求注射腔的表面粗糙度小于Ra0.1-0.25，光学表面要求小于Ra0.01nm，则需要对腔体进行抛光以降低表面粗糙度。因此，选用的钢材要求材料杂质少，排列均匀，无纤维取向，抛光时无麻点或橘皮缺陷。

The quality of injection molded products is good, and the surface roughness of the mold cavity is required to be small. If the surface roughness of the injection cavity is required to be less than ra0.1-0.25, and the optical surface is required to be less than ra0.01nm, the cavity needs to be polished to reduce the surface roughness. Therefore, the selected steel requires less impurities, uniform arrangement, no fiber orientation, and no pitting or orange peel defects during polishing.

注塑模具中零件的形状往往很复杂，淬火后很难再加工。因此，应尽可能选择热稳定性好的材料。塑料模具成型和热处理后，由于线膨胀系数小，热处理变形小，温差引起的标准变化率小，金相排列和标准模具稳定，可以减少或停止加工，标准精度和表面塑料模具的质量可以保证。粗糙度要求。

The shape of parts in injection mold is often very complex, and it is difficult to reprocess after quenching. Therefore, materials with good thermal stability should be selected as far as possible. After plastic mold forming and heat treatment, due to small linear expansion coefficient, small heat treatment deformation, small standard change rate caused by temperature difference, stable metallographic arrangement and standard mold, processing can be reduced or stopped, and standard accuracy and surface plastic mold quality can be guaranteed. Roughness requirements.

另外，济南注塑加工厂家提醒，定制的注塑模具产品一般都比较新颖好看。它是客户根据自己的需要设计的独特产品。然后将产品的3D图像送注塑模具厂进行加工，并在前期签订保密合同。确保产品的外观和结构不会泄漏。

In addition, Jinan injection molding manufacturers remind that customized injection mold products are generally novel and good-looking. It is a unique product designed by customers according to their own needs. Then send the 3D image of the product to the injection mold factory for processing, and sign a confidentiality contract in the early stage. Ensure that the appearance and structure of the product will not leak.

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