| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding apparatus in which, when injection molding a conductive material, while suppressing the lengthening or the like of an injection molding cycle, the occurrence of a molded article appearance problem or the like can more reliably be suppressed, and stable quality molded articles can be produced.SOLUTION: The molding mold includes a plurality of mutually insulated conductive parts in at least a portion of a cavity-forming face, as well as includes electric conduction means for applying a predetermined voltage between the conductive parts, electric conduction control means for controlling the voltage applied by the electric conduction means, and measuring means for measuring a parameter value related to a volumetric resistivity of the conductive material heat-melted in heating and injecting means, and in which, characterized, the electric conduction control means causes the electric conduction means to apply a voltage between the conductive parts so that the injected conductive material will be electric conduction heated upon touching the conductive parts of the molding mold, and the conditions of at least one of an injection step, a pressure-holding step, an electric conduction step or a cooling step are controlled based on the parameter value.SELECTED DRAWING: Figure 1 |
