METHOD FOR MANUFACTURING A FILTER FROM SHEET METAL AND A FILTER MANUFACTURED BY THE METHOD

摘要

The object of the invention is a method for manufacturing a filter from sheet metal and a filter manufactured by the method. In the method are used two perforated sheets (12, 13) mounted at a distance from one another, between which is formed a space (16) for the filtered liquid. In the method, on at least one edge of one of the sheets (12; 13) is formed a connecting groove (1;1'; 4; 4') by bending the edge (17, 21) of the sheet. In the connecting groove is placed the connecting part (14; 18; 17; 19; 21; 9) of either a separate edge strip (2; 5) or of the opposite sheet (12; 13) in such a way that the said connecting part can be moved to the correct location in the connecting groove, after which the connecting part is connected to the connecting groove by welding.