| 摘要 |
PCT No. PCT/CH89/00178 Sec. 371 Date Mar. 21, 1990 Sec. 102(e) Date Mar. 21, 1990 PCT Filed Sep. 29, 1989 PCT Pub. No. WO90/03876 PCT Pub. Date Apr. 19, 1990.The method is used to process a synthetic moulding compound which crystallizes within a specific temperature range. In order to prevent milkiness in the blank to be produced, the moulding compound is chilled. The method prevents such milkiness, at least in the gate area of the blank, by keeping all of the moulding compound, during the operating cycle, as far as the gate area, at a temperature which is above the temperature TCC below which the moulding compound begins to crystallize. A gate system, which may be used to carry out the method, uses, in the interior of the injection nozzle, a strongly heat conducting nozzle core, a strongly heat conducting area in the immediate vicinity of the gate opening, and a gap for heat insulation of the nozzle tip, the nozzle core and the moulded body.
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