| 摘要 |
PURPOSE:To obtain a mold having a high heat speed capable of being heated to high temperature in a short time through high frequency conductive heating by heat-treating the magnetism being existed in an iron metal and an electroless nickel-phosphorus plated layer. CONSTITUTION:It is constituted with an iron metal and electroless nickel- phosphorus plated layer, wherein the phosphorus contained rate of the electroless nickel-phosphorus plating is made 8-13%, and the heat treating condition is to be at the temperature of 200-350 deg.C for one hour or three hours. For instance, the manufacture of a mold comprising an iron metal layer 100 and metal plated layer 110 is such that the configuration work of cavity configuration of a molded product is carried out on the surface of the iron metal. In the metal plating liquid contained phosphorus, an electroless nickel-phosphorus layer 110 is metal-plated on the cavity surface. After forming the metal plated layer, a heat treatment is conducted within an atmospheric constant temperature bath. |
