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在注塑模具生產中選擇鋼材應滿足哪些性能要求?

來源:http://www.436695.tw     發布時間:2019-07-17 16:35:16    點擊:

  在注塑機制造塑料制品注塑模具一般需要高溫的環境下進行一百五十度到二百攝氏度,所以原材料的選擇過程中制造注塑模具需要非常注意,它會遲到整個注塑模具塑料制品的生產、生活質量起著重要的作用,那么在選擇注塑鋼原材料時需要滿足性能要求嗎?
  The injection moulds of plastic products made by injection moulding machines usually need to be 150 to 200 degrees Celsius in high temperature environment. Therefore, in the process of selecting raw materials, the injection moulds should be made with great attention. It will be late for the production and quality of life of the whole injection moulds and plastics products, so it plays an important role in choosing the injection moulding steel. Do materials need to meet performance requirements?
  山東模具-http://www.436695.tw
  Shandong Mold - http://www.436695.tw
  注塑模具材料選擇原則
  Material Selection Principle of Injection Mold
  具有足夠的表面硬度和耐磨性
  Sufficient surface hardness and wear resistance
  注塑模具的硬度一般在50-60HRC以下,熱處理后的模具應具有足夠的表面硬度,以保證模具有足夠的剛性。由于充型和流動注射成型在模具的工作中要承受較大的壓縮應力和摩擦,模具需要保持形狀精度和尺寸精度的穩定性,以保證模具有足夠的使用壽命。模具的耐磨性取決于鋼的化學成分和熱處理的硬度。
  The hardness of injection moulds is generally below 50-60HRC. The heat treated moulds should have enough surface hardness to ensure that the moulds have enough rigidity. Because filling and flow injection moulding have to bear large compressive stress and friction in the work of the die, the die needs to maintain the stability of shape accuracy and dimension accuracy to ensure that the die has sufficient service life. The wear resistance of the die depends on the chemical composition of the steel and the hardness of the heat treatment.
  山東模具
  Shandong Mould
  良好的可加工性
  Good machinability
  大多數注塑模具,除了EMD加工還需要進行一些切割和鉗工修理。為了延長刀具的使用壽命,提高切削性能,降低表面粗糙度,注塑鋼的硬度必須合適。
山東模具
  Most injection moulds require cutting and fitter repairs in addition to EMD processing. In order to prolong tool life, improve cutting performance and reduce surface roughness, the hardness of injection steel must be appropriate.
  50級碳鋼具有一定的強度和耐磨性,常作為調質后的模架材料使用。高碳工具鋼和低合金工具鋼經過熱處理后具有較高的強度和耐磨性,主要用于零件的成型。但高碳工具鋼在熱處理過程中變形較大,僅適用于制造尺寸小、形狀簡單的零件。
  Grade 50 carbon steel has a certain strength and wear resistance, and is often used as quenched and tempered die base material. High carbon tool steels and low alloy tool steels have high strength and wear resistance after heat treatment, which are mainly used for forming parts. However, high carbon tool steels have large deformation during heat treatment, and are only suitable for manufacturing small size and simple shape parts.
  山東模具
  Shandong Mould
  良好的熱穩定性
  Good thermal stability
  注塑模具零件形狀更為復雜,難以淬火過程后,所以應選擇盡可能具有良好的熱穩定性、雙色成型加工后熱處理由于線性膨脹系數,熱處理變形小,變化率的大小造成的溫差小,微觀結構和模具尺寸穩定,可以減少或不再進行加工,能保證模具尺寸精度和表面粗糙度的要求。
  Injection mold parts are more complex in shape and difficult to quench, so it should be chosen to have good thermal stability as far as possible. After two-color forming, heat treatment can reduce or stop processing because of linear expansion coefficient, small heat treatment deformation, small temperature difference caused by change rate, stable microstructure and die size. The requirement of dimension accuracy and surface roughness of die is verified.
  拋光性能好
  Good polishing performance
  高品質的雙色注塑制品要求型腔表面粗糙度值小。例如,注塑模具型腔表面粗糙度要求小于ra0.1-0.25,光學表面要求Ra<0.01nm。腔體必須拋光以減少表面粗糙度。為此,選用的鋼材雜質少,組織均勻,無纖維方向,拋光時不應出現麻點或橙皮等缺陷。
  High quality two-color injection moulding products require small surface roughness of the cavity. For example, the surface roughness of injection mould cavity is less than ra0.1-0.25, and the optical surface is less than 0.01 nm. Cavity must be polished to reduce surface roughness. For this reason, the steel selected has few impurities, uniform structure, no fiber direction, and should not appear pitting or orange peel defects when polishing.
  以上是山東模具廠家為大家整理的相關內容,想要了解更多內容,歡迎訪問網站:http://www.436695.tw
  The above is the related content that Shandong mould manufacturer sorted out for you. For more information, please visit the website: http://www.436695.tw.
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