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    • 29. 发明专利
    • Temper rolling liquid and undiluted solution for temper rolling liquid
    • 温度滚动液体的温度和液体溶液
    • JP2008248229A
    • 2008-10-16
    • JP2008036047
    • 2008-02-18
    • Nippon Steel Corp新日本製鐵株式会社
    • MORI YOICHIROSUZUKI SHINICHISOMA HIDEJIKATO SATOSHI
    • C10M173/02B21B1/22B21B27/10C10M129/16C10M129/42C10M129/50C10M133/08C10M133/32C10M133/44C10M145/28C10N30/00C10N30/12C10N40/24
    • PROBLEM TO BE SOLVED: To provide a temper rolling liquid and its undiluted solution which have stable good defatting properties and can obtain a cold-rolled steel sheet having excellent chemical conversion properties in a chemical conversion process performed following a defatting process, when a defatting fouling factor component such as a rustproof oil or the like is mixed into a defatting liquid or pH is lowered by passage of time especially in a defatting process of a customer, and when there is fluctuation in a defatting liquid. SOLUTION: The temper rolling liquid and its undiluted solution comprise a water-soluble rust preventive agent of 1-6 mass%, an alkanolamine-based alkali pH regulation agent of 0.8-5.5 mass%, a surfactant of 0.005-1 mass% and the rest consisting of water and an inevitable impurity, and are characterized in that the sum total of the water-soluble rust preventive agent, the alkanolamine based alkali pH regulation agent, and the surfactant is 3-8 mass%, and the alkanolamine based alkali pH regulation agent of two times mol or more and four times mol or less is comprised based on an acid of one mol contained in the water-soluble rust preventive agent. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供具有稳定的良好脱脂性能的回火轧制液体及其未稀释溶液,并且可以获得在脱脂处理之后进行的化学转化处理中具有优异的化学转化性能的冷轧钢板,当 脱脂油等的脱脂结垢因子成分混合到脱脂液体中,或者特别是在消费者的脱脂过程中,通过时间越长,并且当脱脂液体发生波动时,pH降低。 解决方案:回火液及其未稀释溶液包含1-6质量%的水溶性防锈剂,0.8-5.5质量%的链烷醇胺碱性pH调节剂,0.005-1质量%的表面活性剂 %,其余由水和不可避免的杂质组成,其特征在于,水溶性防锈剂,链烷醇胺类碱性pH调节剂和表面活性剂的总和为3-8质量%,链烷醇胺 基于水溶性防锈剂中所含的1摩尔的酸,含有2倍摩尔以上且4倍摩尔以下的碱性碱性pH调节剂。 版权所有(C)2009,JPO&INPIT