| 摘要 |
PURPOSE:To obtain a metallic plate excellent in pressing property and spot weldability, adhesive property after press work by applying wax continuously or discontinuously in the form arranging geometrical patterns or other formative patterns regularly or irregularly and exposing a metallic plate base intermittently. CONSTITUTION:When a specified amount of wax solid lubricant is applied regularly or irregularly in geometrical patterns such as a point, a circle, a line or other formative patterns, it acts favorably on press formability but it is unsuitable for spot weldability and adhesive property in the case of uniformly applying the wax solid lubricant on the whole surface of the metallic plate. Excessive reduction of an amount of coating in order to obtain the weldability and adhesive property lowers the press formability and generates a crack and a wrinkle on a product on the contrary, therefore, a normal product can not be obtained. Consequently, for the purpose of satisfying press formability, degreasing property, weldability and adhesive property at the same time, the wax solid lubricant is applied continuously or discontinuously to expose the metallic plate base partially. |
