摘要:
The invention relates to a method for producing a plastification system that comprises a wear-protecting coating (6, 8) with wear-protection properties that vary across the axial length. Said wear-protecting coating is applied to the surface of plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7) of plastics processing machines. According to the invention, a strip (1), containing a coating material, is applied to the surface of the plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7). Said strip varies in kind or composition in different axial sections of the plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7), adapted to the kind of wear prevailing in the respective axial sections. The strip (1) is then thermally treated so that a wear-protected surface is obtained.
摘要:
The invention relates to a method for producing a plastification, mixing or conveyor screw with wear-protected screw flights, especially a screw for plastics processing machines, using a strip that contains a wear-protecting material. According to the invention, the strip (1), in the zone in which the screw flights (5) are to be configured, is applied to the surface of the screw base (2) and is then thermally treated so that a wear-protected surface is produced in said zone. The screw flights (5) are then tooled, thereby forming the intervening screw base (4).