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METHOD AND DEVICE FOR APPLYING PLASTIC FINISHING LAYER TO SURFACE OF COMPOSITE ITEM AS WELL AS COATED COMPOSITE ITEM
METHOD AND DEVICE FOR APPLYING PLASTIC FINISHING LAYER TO SURFACE OF COMPOSITE ITEM AS WELL AS COATED COMPOSITE ITEM
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机译:在复合物品以及涂层复合物品的表面上施加塑性涂饰层的方法和装置
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摘要
PROBLEM TO BE SOLVED: To improve the adhesion of a layer and the dimensional determination of a coated article by fixing a reinforcing fiber bundle to the surface of an extruded plastic base body and making the inlet diameter of a ring for applying a finishing layer to the surface of a composite article larger than the outlet diameter thereof and reducing and changing the inner diameter of the ring between the inlet and outlet thereof. SOLUTION: In an apparatus for applying a finishing layer 7 to the surface of a composite article having a circular cross section comprising a cylindrical bar 5 reinforced by the spiral winding of a reinforcing fiber bundle 6, a ring 1 is arranged within the axial line of an excessive extruder 9. The ring 1 has an inlet 2 and an outlet 3 having a smaller diameter and the inner surface 4 of the ring is reduced in its inner diameter to be displaced. The excessive extruder 9 is equipped with a central orifice 8 through which reinforced articles 5, 6 pass and an annular inside space 10 receiving the supply of a molten plastic. The inside space is converged to terminate at an annular peripheral orifice 11 through which the molten plastic flows.
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