METHOD FOR MANUFACTURING OF QUARTZ STEEL-POURING CASINGS Russian patent published in 1998 - IPC

Abstract RU 2109713 C1

FIELD: manufacturing of refractory materials, namely, manufacturing of quartz steel-pouring dead end casings. SUBSTANCE: steel-pouring casings are manufactured of high concentrated suspension of quartz sand. Molding is carried out in two stages, initially cylindrical part of the article being formed by centrifugal molding. Then bottom on the base of concrete mixture is molded. Said mixture comprises, %: suspension of quartz sand having density 1.89-1.93 g/cm3, 35-40; filler of quartz sand having particles sized 1-10 mm, 60-65. Articles are affected by heat treatment at 1050-1150 C and then allowed to stand within 1-2 h. EFFECT: improved efficiency of the method. 2 cl

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RU 2 109 713 C1

Authors

Pivinskij Jurij Efimovich

Grishpun Efim Moiseevich

Rozhkov Evgenij Vasil'Evich

Naginskij Mikhail Zinov'Evich

Dates

1998-04-27Published

1997-02-27Filed