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    • 4. 发明公开
    • 저검화가 압연유용 탈지제
    • 具有低通量的滚动流体的消除剂
    • KR1020090066867A
    • 2009-06-24
    • KR1020070134586
    • 2007-12-20
    • 주식회사 포스코
    • 김형준
    • C23G5/02C11D3/04C11D3/08C11D1/66C11D3/00C11D11/00
    • C23G5/02C11D1/66C11D3/0026C11D3/044C11D3/08C11D11/0023
    • A degreasing agent for low-saponification value of rolling fluids is provided to efficiently degrease low-saponification value of rolling fluids, which remains on a stainless steel after a rolling process. A degreasing agent for low-saponification value of rolling fluids comprises an alkali mixture, a first solution and a second solution. The alkali mixture consists of sodium hydroxide and sodium metasilicate in a ratio of 1:0.3~0.8 by weight. The first solution includes a builder selected from the group consisting of sodium gluconate, ortho sodium silicate, meta potassium silicate, tripolysodium phosphate, hexa meta sodium phosphate, potassium hydroxide and potassium carbonate. The second solution consists of: 7.0-20.0wt% of non-ionic surfactant represented by the formula 1, RO-(EO)M(PO)NH; 1.2-6.5wt% of complex additive selected among sodium naphthalenesulfonate, 1,2-benzyl-iso-triazole and their mixture; and 0.3-1.5wt% of chelating agent selected among methylphosphonic acid, diphosphonic acid and their mixture. The first solution and the second solution are mixed in a ratio of 1:0.04-1:0.60 by weight. In the formula 1, R is a C6-C18 alkyl group; EO is an ethyleneoxide group; PO is a propyleneoxide group; M and N are integers except for 0; M+N is an integer of 5 to 20.
    • 提供了一种用于滚动流体的低皂化值的脱脂剂,以有效地去除在轧制过程之后残留在不锈钢上的滚动流体的低皂化值。 用于滚动流体的低皂化值的脱脂剂包括碱混合物,第一溶液和第二溶液。 碱混合物由氢氧化钠和偏硅酸钠组成,其重量比为1:0.3〜0.8。 第一溶液包括选自葡糖酸钠,邻硅酸钠,偏硅酸钾,磷酸三聚磷酸钠,六偏磷酸钠,氢氧化钾和碳酸钾的助洗剂。 第二溶液由以下组成:7.0-20.0重量%的由式1表示的非离子表面活性剂RO-(EO)M(PO)NH; 1.2-6.5重量%的选自萘磺酸钠,1,2-苄基 - 异三唑及其混合物的复合添加剂; 和0.3-1.5重量%的选自甲基膦酸,二膦酸及其混合物的螯合剂。 第一溶液和第二溶液以1:0.04-1:0.60重量比混合。 在式1中,R是C 6 -C 18烷基; EO是环氧乙烷基团; PO是环氧丙烷基; M和N是0以外的整数; M + N为5〜20的整数。