| 摘要 |
PURPOSE:To simplify a process of cleaning a molding die by applying acid- resistant coating to surfaces to be in contact with molding resin. CONSTITUTION:An upper base block 1, a lower base block 2, an upper center block 3, a lower center block 4, an upper chase block 5, and a lower chase block 6 are all made of iron. The upper center block 3, the lower center block 4, the upper chase block 5, and the lower chase block 6 are coated with acid- resistant polysilicon 11 in the areas to be in contact with molding resin. The polysilicon 11 may be deposited by CVD, evaporation, or sputtering. The polysilicon coating enables the use of a strong acid such as sulfuric acid or chloric acid that is very effective to clean the surfaces to be in contact with molding resin. |
