| 摘要 |
FIELD: detergent composition for metallurgy. ^ SUBSTANCE: claimed composition contains (g/l): sodium hydroxide 6.05-12.05; sodium carbonate 5.25-10.75; sodium silicate 0.27-0.47; sodium tripolyphosphate 1.20-2.70; propylene trimer-based oxyethylated monoalkyl phenol containing 12 mol of ethylene oxide in molecule 0.073-0.158; propylene trimer-based oxyethylated monoalkyl phenol containing 6 mol of ethylene oxide in molecule 0.054-0.106; antifoaming agent 0.011-0.023; and balance to 1 l: water, wherein mass ratio of surfactant mixture to antifoaming agent is 11.5:1. Composition of present invention is useful in degreasing of rolled metal in rolls at high velocity (20-30 s) continuous treatment before coating (zinc plating, insulated coating, etc.) and affords the ability to provide metal surface of high purity. ^ EFFECT: detergent with reduced foaming useful for pretreatment of anizotropic electric steel. ^ 2 tbl, 6 ex |
