초록 ▼

A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be supplied to a casting die. The molten metal flow

A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be supplied to a casting die. The molten metal flows from the first chamber to the second chamber through the filtration chamber. A pair of filters, preferably a pair of cylindrical filters, are disposed in the filtration chamber, so that the impurities contained in the molten metal can be filtered twice. The filters are attached to the bottom of the filtration chamber where molten metal oxides hardly develop, so that the filters are easily replaced with new ones for the maintenance purpose. A rod-shaped heater may be disposed in the cylindrical filters to keep the molten metal temperature in a strictly controlled range. Thus, the impurities are effectively removed from the molten metal through the filters which are easily replaceable.

대표청구항 ▼

[ What is claimed is:] [1.]1. A molten metal vessel for filtering impurities contained in molten metal, the molten metal vessel comprising:a first chamber adapted to contain molten metal;an inlet passage;a filtration chamber connected to the first chamber through the inlet passage so that molten met

[ What is claimed is:] [1.]1. A molten metal vessel for filtering impurities contained in molten metal, the molten metal vessel comprising:a first chamber adapted to contain molten metal;an inlet passage;a filtration chamber connected to the first chamber through the inlet passage so that molten metal when contained in the first chamber flows into the filtration chamber;first and second filters independently disposed in the filtration chamber for filtering impurities contained in the molten metal, the filters being hollow-pillar-shaped and fastened to a bottom surface of the filtration chamber so that all the molten metal sequentially flows through the first and the second filters;an outlet passage; anda second chamber connected to the filtration chamber through the outlet passage, the second chamber reserving the molten metal after the impurities in the molten metal have been filtered out through the filters;wherein the inlet passage communicates with an inside space of the first filter, and the outlet passage communicates with an inside space of the second filter, said vessel being constructed and arranged such that molten metal, when present, first enters the inside space of the first filter, flows out through a wall of the first filter, enters the inside space of the second filter through a wall of the second filter, and finally flows out from the inside space of the second filter toward the second chamber, thereby filtering twice the impurities contained in the molten metal.