| 摘要 |
PROBLEM TO BE SOLVED: To provide a monitoring method of the state of plasticization capable of immediately and accurately detecting generation of abnormality of plasticization. SOLUTION: In an injecting apparatus 1 of plasticizing a material charged in the rear side of a heating tube 2 with a screw 4 inserted in the inner hole of the heating tube 2, the running torque of the screw 4 plasticizing the resin is measured with time. The abnormality of plasticization is detected by the fact that the running torque value decreases for a time exceeding a first predetermined time T1 and then increases for a time exceeding a second predetermined time T2. COPYRIGHT: (C)2007,JPO&INPIT
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