,提高切削性能
,降低表面粗糙度,塑料模具鋼的硬度必須適當(dāng)

山東模具制造廠家
Excellent machinability: most plastic molds need a certain degree of cutting and fitter repair in addition to EMD processing. In order to prolong the service life of cutting tools, improve cutting performance and reduce surface roughness, the hardness of plastic die steel must be appropriate.
良好的拋光性能:優(yōu)良塑料制品
,要求表面粗糙度小
。用于此目的的鋼材需要較少的材料雜質(zhì),組織細(xì)微均勻
,無纖維方向
,拋光不應(yīng)出現(xiàn)點(diǎn)蝕或桔皮樣缺陷。
Good polishing performance: excellent plastic products, requiring small surface roughness. The steel used for this purpose needs less material impurities, fine and uniform structure, no fiber direction, and there shall be no pitting or orange peel like defects in polishing.
良好的熱穩(wěn)定性:注塑模具部件的形狀往往比較復(fù)雜
,淬火后難以加工
,應(yīng)盡量使用良好的熱穩(wěn)定性,當(dāng)模具加工熱處理后由于線膨脹系數(shù)小
,熱處理變形小
,由于尺寸變化率小,金相組織和模具尺寸穩(wěn)定
,可以減少或不再加工的溫差
,可以保證模具尺寸精度和表面粗糙度的要求。
Good thermal stability: the shape of injection mold parts is often complex and difficult to process after quenching. Good thermal stability should be used as much as possible. After mold processing and heat treatment, due to small linear expansion coefficient and small heat treatment deformation, small size change rate and stable metallographic structure and mold size, the temperature difference can be reduced or no longer processed, It can meet the requirements of die dimensional accuracy and surface roughness.