螺桿泵的材料有哪些
What are the screw material
螺桿泵轉子由于工況惡劣,因此選材比空壓機、制冷機的螺桿要好,如選用38CrMoAl、40Cr、20Cr13、16Mn、CrS5的、常需經滲氮硬化(HRc56-65)。也有選用CrNi、CrMo、CrNiMo不銹鋼、MnCrS鋼等
Screw pump rotor due to poor working conditions, so selection than the air compressor, screw chiller is better, such as the selection of 38CrMoAl, 40Cr, 20Cr13, 16Mn, CrS5, and often subject to nitriding, hardening (HRc56-65). Have also selected CrNi, CrMo, CrNiMo stainless steel, MnCrS steel |