METAL FOAM FILTER, MAFUFACTURING METHOD FOR THE SAME AND EXHAUST GAS FILTER PROVIDED WITH THE SAME

摘要

According to an embodiment of the present invention, a metal foam filter comprises: a first metal foam filter sheet in a first shape; a first metal foam filter sheet in a second shape corresponding to the first shape; a second metal foam filter sheet in the first shape; and a second metal foam filter sheet in the second shape. A first layer is formed by the first metal foam filter sheet in the first shape and the second metal foam sheet in the second shape, and a second layer is formed by the first metal foam filter sheet in the second shape and the second metal foam filter sheet in the first shape. The first and second layers can be overlapped.