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本阀座采用粉末冶金方法制造,分“整体型”与“复合型”两类;后者比前者的生产成本降低约50%.该两类阀座的工作层均采用高合金材质制造,在其中含有足够数量的硬质微?肮烫迦蠡?具有高耐磨、耐热,耐蚀及自润滑特性.“复合型”的非工作层则采用价廉的普通低合金材质制造,具有足够的耐热性、耐蚀性及刚性,并与其工作层有优良的相容性和界面结合强度.均适用于无铅及含铅化汽油发动机.根据其所具特性,还可用于柴油发动机的进气和排气阀座;以及引进的轻型车和轿车的排气及进气阀座,以替代进口件.
The valve seat is manufactured by powder metallurgy method, which divides into two types: “integral type” and “composite type”, and the latter reduces production cost by about 50% compared with the former. Both working layers of the valve seat adopt high alloy Made of a material that contains a sufficient amount of hard, micro-resistant, high-wear, heat-resistant, corrosion-resistant and self-lubricating features. Low alloyed material with sufficient heat resistance, corrosion resistance and rigidity, excellent compatibility with the working layer and interfacial bonding strength, suitable for both lead-free and leaded gasoline engines. According to its characteristics , As well as intake and exhaust valve seats for diesel engines, as well as exhaust and intake valve seats for imported light vehicles and sedans to replace imported ones.