摘要 |
PURPOSE:To provide an extruder that can normally and stably carry out coating and formation of a foaming insulating body by stabilizing the pressure inflow into an extruding cylinder. CONSTITUTION:A extruder comprises a first step cylinder 2 and an extruding cylinder 11 that cross to one another perpendicularly and are thus connected together. A flight 6 of a part situated on the inflow hole 7 of a screw 5 is cut, and an inflow part 12, into which a resin is flowed freely, is provided in the extruding cylinder 11. |