METHOD FOR APPARATUS FOR APPLYING SOOT ONTO MOLD

PURPOSE:To uniformize releasing property of castings from molds and to prevent the damage of the casting by limiting the combustion when a burner corresponding to the specific range in soot applying range in a mold passes through the relevant range to reduce the soot applying rate on the range. CONS...

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Bibliographische Detailangaben
Hauptverfasser: SEKIGUCHI TAKEO, YAMADA MAKOTO, MATSUMOTO TOSHIHARU, UDAGAWA NOBORU, TANIGAWA MASAAKI
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To uniformize releasing property of castings from molds and to prevent the damage of the casting by limiting the combustion when a burner corresponding to the specific range in soot applying range in a mold passes through the relevant range to reduce the soot applying rate on the range. CONSTITUTION:To each of burners 6 except the specific burner 6c, fuel gas is supplied at each shifting time corresponding to the soot applying range detected with limit switches 14L, 14H, and by developing incomplete combustion, the soot is applied onto the mold surfaces 1a, 1b and the recessed part 1c. On the other hand, in the specific burner 6c corresponding to the specific range 13, at the time of passing the specific range 13, as the fuel gas is supplied by the limited times less than the plural set times of reciprocating shiftings, the soot applying rate in the specific range 13 can be reduced. Even if these is the difference in the releasing property of the castings from the molds caused by difference of the shape of the mold surfaces 1a, 1b and the recessed part 1c, the releasing property is uniformized over the whole surface due to difference of soot applying amt. and the development of crack, etc., in the casting can be prevented.