六十年代以来相继出现了塑料粘附于金属表面的组合材料,它综合了塑料耐磨、耐腐蚀、减震和噪音低等性能,又有金属强度高等优点。但是,其重量不能得到显著降低。八十年代,国外又研制了金属粘附于塑料表面的组合材料,这种新型金属-塑料组合材料主要是发挥了塑料重量轻的优点。 Since the 1960s, composite materials of plastic adhering to the metal surface have appeared one after another, which combines plastic wear resistance, corrosion resistance, shock absorption and low noise, as well as the advantages of high metal strength. However, its weight can not be significantly reduced. In the 1980s, foreign countries also developed a composite material with metal adhered to the plastic surface. The new metal-plastic composite material mainly takes the advantages of light weight of plastic.