LP-Z307 blackening agent Spring tempering

2018/07/06

1. Iron and steel blackening agent is a concentrated type. Stir it evenly before use. The blackening agent is thoroughly mixed with water at a ratio of 10 to 15 to become a working fluid

2. The workpieces that are quenched and tempered to 200 ° C-600 ° C are put into a blackening working fluid, which instantly becomes black;
3. After the small parts come out of the liquid (120 ～ 180 ℃), they are dried by hot air. Large parts can dry naturally.
4. The temperature of the blackening working liquid is best in the range of (40 ~ 60 ℃).
5. Add blackening agent according to production volume