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1. DE102012200967 - Speiser und formbare Zusammensetzung zu deren Herstellung enthaltend kalzinierte Kieselgur

Office Germany
Application Number 102012200967
Application Date 24.01.2012
Publication Number 102012200967
Publication Date 25.07.2013
Publication Kind A1
IPC
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
9
Moulds or cores; Moulding processes
08
Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
B22C 9/8
CPC
B22C 9/088
B22D 7/102
Applicants CHEMEX GMBH
Inventors RECKNAGEL ULRICH
STOECKLEIN ROLF
SEELBACH WOLFGANG
LANVER ULRICH
Title
(DE) Speiser und formbare Zusammensetzung zu deren Herstellung enthaltend kalzinierte Kieselgur
Abstract
(DE)

A polyurethane cold box bonded feeder and/or polyurethane cold box bonded feeder component used in foundry industry, comprises calcined kieselguhr, hardened polyurethane cold box resin, optionally fiber material, optionally molded fabric component(s), and optionally oxidizable metal(s) and/or oxidizing agent(s) for oxidizable metals. Independent claims are included for the following: (1) malleable composition for preparation of feeder and feeder component according to polyurethane cold box method; (2) preparation of malleable composition; (3) preparation of impregnated calcined kieselguhr having reduced water absorption ability; (4) reduction of water absorption ability of calcined kieselguhr for preparation of feeder and feeder component by impregnation; and (5) use of calcined kieselguhr.