Stainless steel blackening agent / high temperature Black salt / steel black / black surface treatment

Foshan Decheng Hezhong Chemical Co., Ltd. Address: Nanzhuang purple violet Village Road 23, Foshan Tel: 0757-82012410 Fax: 0757-82012430 Website: www.dchz.cn E-mail: fsdchz@163.com QQ: 320013115 / 502581623 Ali Want: fsdchz UB 407 stainless steel high-temperature black agents this product white particles, black stainless steel with excellent results, with good corrosion resistance, blackening the film reach the required US military specifications (MiL-C- 13924C Class 1, MiL-DTL-13924D Class 4), can also be used wrought iron and cast iron and some of the pressure, low-carbon steel black. First, the process oil (E-Kleen 101) → water 3 times → activation (E-Pik 211) → water 3 times → black (UB 407) → water 3 times → closed Second, the process parameters Product Name UB 407 hair black concentration 740g / L water temperature 118-125 ℃ Time 2-15 minutes three, under normal circumstances bath bath control the boiling temperature of 120-125 ℃, when the temperature is below the boiling temperature of the bath should be added UB 407 solid salt, when boiling temperature should be above this temperature bath water was added. Fourth, note UB 407 strong alkaline, blackened operation to wear goggles, acid gloves, aprons, avoid contact with eyes, skin and clothing.