| 摘要 |
<p>METHOD OF PRODUCING RESIN ARTICLES BY USE OF PLASTER MOLD AND THE PRODUCTS THEREOF Method of producing resin articles by use of a plaster mold comprising the steps of sensing the resin injection pressure in the plaster mold by a pressure sensing means and controlling the injection conditions for a molding machine in accordance with the desired optimum pattern of correlation between the diameters of a sprue runner and an air vent,, which pattern is stored in the memory of a computer in advance. With this construction, the molded products with sufficient strength in the portion thereof as well as stable molded properties and improved dementional accuracy can be obtained according to the present invention.</p> |
