Method for filter fabrication

摘要

Method for the fabrication of a neat front side of a filter where the front side is inserted into an injection mold tool. Then a suitable elastic thermoplastic material is injected into the tool. The amount of elastic thermoplastic material injected is less than the available space so that the pressure will rapidly drop as the material flows from the point of injection. By injecting the elastic thermoplastic material into a gasket part this can be given an exact shape. At the same time the free front of the elastic thermoplastic material will secure that the pressure exerted on the filter matrix will not destroy this.