Filter mesh assembly for a plastic extruder filter assembly and method of filtering recycled material

摘要

A filter mesh assembly (100) configured to control particulate material in a filter assembly (100) of a plastic extruder. The filter mesh assembly (100) includes a wire mesh filter having a square weave construction defining a predetermined pore size with the wire mesh filter having flattened surfaces of adjacent wires on the same plane and configured to allow a portion of the scraper (116) to move across the wire mesh filter assembly (100). The assembly (100) also includes a wire mesh supporter having a square weave construction and a characteristic of sufficient strength to support the wire mesh filter against a breaker plate (112). The wire mesh filter and the wire mesh supporter are diffusion bonded to each other as a unified structure and disposed in a housing between an inlet and breaker plate (112). The configuration allows passage of molten plastic through the breaker plate (112) and lateral movement of material, parallel to the breaker plate (112).