Treatment liquid for forming chromium-free insulation film on grain-oriented electromagnetic steel sheet, and method for manufacturing grain-oriented electromagnetic steel sheet provided with insulation film
    9.
    发明专利
    Treatment liquid for forming chromium-free insulation film on grain-oriented electromagnetic steel sheet, and method for manufacturing grain-oriented electromagnetic steel sheet provided with insulation film 有权
    用于形成面向电磁钢板的无铬绝缘膜的处理液以及用绝缘膜制造面向导向的电磁钢板的方法

    公开(公告)号:JP2009057591A

    公开(公告)日:2009-03-19

    申请号:JP2007224742

    申请日:2007-08-30

    摘要: PROBLEM TO BE SOLVED: To provide a treatment liquid for forming a chromium-free insulation film on a grain-oriented electromagnetic steel sheet, which prevents a degradation of the tensile strength of the coating film and moisture resistance which remarkably occurs when the treatment liquid for forming the insulation coating film does not contain chromium, and can form the insulation film superior in properties such as the tensile strength of the coating film, moisture resistance, rust-preventive properties and a space factor, on the grain-oriented electromagnetic steel sheet. SOLUTION: The treatment liquid includes one or more substances selected from among phosphates of Mg, Ca, Ba, Sr, Zn, Al and Mn, and colloidal silica of 0.5 to 10 mol in SiO 2 terms and a titanium chelate compound of 0.01 to 4.0 mol in Ti terms each with respect to PO 4 of 1 mol, which is contained in the selected phosphates. COPYRIGHT: (C)2009,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种用于在取向电磁钢板上形成无铬绝缘膜的处理液,其防止涂膜的抗拉强度降低和防潮性显着地发生在 用于形成绝缘涂膜的处理液不含铬,并且可以形成具有优异的涂膜抗拉强度,耐湿性,防锈性和空间因素等特性的绝缘膜对晶粒取向电磁 钢板。 解决方案:处理液包括选自Mg,Ca,Ba,Sr,Zn,Al和Mn的磷酸盐中的一种或多种物质,以及SiO 2中的0.5至10mol的胶体二氧化硅 术语和0.01至4.0摩尔的钛螯合化合物,Ti相对于选定的磷酸盐中含有的1摩尔的PO 4 SBS 4