钢铁常温发黑工艺研究

Study on Technique of Blackening of Steel at Roomtemperature

本文对钢铁常温发黑工艺进行了实验研究，获得了良好的实践效果，提出了可能的成膜机理，测试了发黑液与膜层的性能。

The technique of blackening of steel at roomternperature was studied.The technological practice with advanced performance was ob-tained.The properties of blackening solution and that of the surface film was measured.A mechanism for formation of film in the blackening proc-ess was proposed.