Injection molding device, injection molding method, and injection molding resin material

An injection molding resin material to be supplied to an injection molding device,

• the injection molding device including:
• an injection machine which injects the supplied injection molding resin material while keeping fluidity by temperature control;
• a molding die which includes a cavity being a channel of flow of the injection molding resin material, and a pair of electrodes, each of which faces the cavity, the pair of electrodes being disposed to sandwich the injection molding resin material therebetween in a direction crossing a direction of the flow;
• and
• a high frequency oscillation device which applies a high frequency alternate-current voltage to the pair of electrodes,
• the injection molding resin material comprising:
• a base material containing resin selected from among ABS, PC/ABS, PC, POM, PA6, PA12, and PA66, and
• a dielectric heat generating material containing resin including a plurality of amide monomers and a plurality of ether monomers that are polymerized, and a cation held in a moiety where the ether monomers are polymerized,
• wherein
• the cation is migratable by an electromagnetic wave generated in the injection molding resin material by application of the high frequency alternate-current voltage, and
• the dielectric heat generating material generates heat as the cation migrates by the electromagnetic wave.