| 摘要 |
PROBLEM TO BE SOLVED: To appropriately control a raw material temperature of a liquid raw material by removing time lag of temperature control. SOLUTION: Raw material temperatures in a first and a second raw material feed routes 11, 13 are respectively detected with a first and a second temperature sensors 21, 25. When the raw material temperatures of polyol and isocyanate become under a lower limit temperature of a pouring temperature set range which is preliminarily set, a first pump 23 is driven to reach the lower limit temperature and the polyol is independently circulated between a polyol tank 15 and a mixing head 9. Besides, a second pump 27 is driven and the isocyanate is independently circulated between an isocyanate tank 17 and the mixing head 9. After the temperature of the raw material reaches the lower limit temperature, the polyol and the isocyanate are made to join at a mixing head 9 and be poured into a cavity of a mold 1. COPYRIGHT: (C)2004,JPO |
