眾所周知，注塑模具材料的選擇決定了其質(zhì)量，而注塑是塑料成型加工中不可缺少的環(huán)節(jié)，其在模具總產(chǎn)量中的比重逐年增加。它占整個成型模具的33%左右，因此它在國民經(jīng)濟(jì)中的地位越來越重要。
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.
影響塑件模具壽命的主要因素有：模具結(jié)構(gòu)、模具材料、模具加工質(zhì)量、模具工作狀態(tài)、產(chǎn)品零件狀態(tài)等。在這個過程中，模具材料本身的性能和熱處理起著至關(guān)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，大多數(shù)碳鋼模具鋼因其價格低廉、使用方便、具有一定的力學(xué)性能而被廣泛使用。除塑料模具鋼外，還包括預(yù)硬化塑料模具鋼等其他模具鋼。其中，模具鋼的種類很多。目前常用的有預(yù)硬塑料模具鋼、滲碳塑料模具鋼和時效硬化塑料模具鋼。硬化塑料模具鋼是加工鋼材時應(yīng)用的硬度規(guī)則。這種鋼具有優(yōu)良的切削性能，可在型腔內(nèi)直接加工。一般用于大量塑料制品的加工，如鏡面模具等，以32~40HRC來計算硬度。
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.
注塑制品質(zhì)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，光學(xué)表面要求小于Ra0.01nm，則需要對腔體進(jìn)行拋光以降低表面粗糙度。因此，選用的鋼材要求材料雜質(zhì)少，排列均勻，無纖維取向，拋光時無麻點或橘皮缺陷。
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狀往往很復(fù)雜，淬火后很難再加工。因此，應(yīng)盡可能選擇熱穩(wěn)定性好的材料。塑料模具成型和熱處理后，由于線膨脹系數(shù)小，熱處理變形小，溫差引起的標(biāo)準(zhǔn)變化率小，金相排列和標(biāo)準(zhǔn)模具穩(wěn)定，可以減少或停止加工，標(biāo)準(zhǔn)精度和表面塑料模具的質(zhì)量可以保證。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，
濟(jì)南注塑加工廠家提醒，定制的注塑模具產(chǎn)品一般都比較新穎好看。它是客戶根據(jù)自己的需要設(shè)計的獨特產(chǎn)品。然后將產(chǎn)品的3D圖像送至注塑模具廠進(jìn)行加工，并在前期簽訂保密合同。確保產(chǎn)品的外觀和結(jié)構(gòu)不會泄漏。
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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