Georg Fischer Aktiengesellschaft

Other

Chamotte- Und Tonwerk Kurt Hagenburger

Adolf Trautwein

Ernst Muller

Walter Gysel

Hans D Grabowski

Hans-Joachim Bohm

A compact and re-usable ingate device for transferring molten metal to a mold during casting employs a substantially unitary structure resembling a trapezoidal block of refractory material. Within the block are a generally cylindrical rotation chamber, an inlet channel which receives the molten metal and injects it tangentially into the rotation chamber, so that the metal swirls rapidly to separate nonmetallic inclusions, and an outlet channel which conveys the cleaned metal to the mold. The rotation chamber may have a bottom that is positioned below the opening to the outlet channel and walls which slope outward slightly from the bottom to at least the opening, so that inclusions and metal that has solidified at the bottom can be removed from the rotation chamber. Alternately the outlet channel may open into the bottom at an eccentric position, so that all of the molten metal will be drained.

Ingate device and process for casting molten metals

PCT No. PCT/CH78/00040 Sec. 371 Date July 30, 1979 Sec. 102(e) Date July 23, 1979 PCT Filed Nov. 24, 1978 PCT Pub. No. WO79/00328 PCT Pub. Date June 14, 1979 A non-magnetizable steel casting alloy with the composition

Non-magnetizable steel casting alloy, its use and process of manufacture

There is disclosed a continuous casting process in which contaminants from a metal melt are separated out by forcing the metal melt to undergo a rotating turbulent flow before it is cast. The desired rotating turbulent flow is achieved by disposing a suitable chamber, through which the melt flows, between the ladle and the mould.

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Gottmadingen, Germany

Adolf Trautwein