In order to deal with the oxidizing,difficulty to welding,high cos ts and waste pollution in brass pickling and tin plating,a new nonchrome techn ology operated at room temperature was developed.

• 为解决黄铜酸洗件和镀锡件的防变色能力差、产品焊接性能差、生产成本高及三废污染严重等问题,研究开发出了一种可在室温下操作的无铬化工艺。