Tags for: alkaline blackening

the blackening film is not firm is the common problem of such products. This process is also the most difficult to solve the key problem of the product. Workpiece blackening after the surface of the b... (more…)

Blackening / blueing is widely used in the machinery manufacturing industry. The commonly used blackening / blueing methods are low-temperature alkaline blackening / blueing and normal temperature blackening / blueing. Steam trea...... (more…)