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1.发明公开GIESSFORMSTOFF FÜR DIE HERSTELLUNG VON GUSSFORMEN ZUM GIESSEN VON WERKSTOFFEN MIT HOHEM SCHMELZPUNKT 有权GIESSFORMSTOFF适于铸造物料的熔点高铸件形状生产
公开(公告)号：EP1461173A1
公开(公告)日：2004-09-29
申请号：EP01274884.4
申请日：2001-12-07
CPC分类号： B22C1/181 , A61C13/081 , A61C13/083
摘要： The invention relates to a casting material for producing casting molds for casting high-melting point materials. Said casting material comprises a powdered component that contains magnesium oxide and aluminum oxide, and a liquid component. The powdered component additionally contains a calcium aluminate and an alkali fluoride or alkaline-earth fluoride, and the liquid component contains a polyelectrolyte and an alkaline component, said alkaline component adjusting the pH of the liquid component at between 10 and 14. The powdered and the liquid component are mixed, a flowable slip is produced, which is used, once dried, solidified and sintered, to produce a hollow mold.
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公开(公告)号：EP1144089A1
公开(公告)日：2001-10-17
申请号：EP99957336.3
申请日：1999-12-03
发明人： ADLER, Jörg , LENK, Reinhard , RICHTER, Hans-Jürgen , STOCKMANN, Regina , TOCHA, Daniel , STROH, Norbert , TUDYKA, Stefan
CPC分类号： B01D67/0041 , B01D53/228 , B01D63/061 , B01D63/066 , B01D69/00 , B01D69/06 , B01D71/02 , B01D2325/021 , B01D2325/022 , Y10S55/05
摘要： The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least two layers of at least two sub-layers of different porosity, at least one of these layers having a non-planar geometry. The two layers are joined to each other with at least spot joins and integral joins. The invention also provides a method for producing a flat membrane of this type. According to this method, suspensions are produced from at least two ceramic powders of different particle size. Two sub-layers are formed from said suspensions, then dried and joined to form one layer. At least one layer which is embossed and sintered or unsintered is joined to a non-embossed, similarly embossed, differently embossed or differently structured, sintered or unsintered layer with at least spot joins and integral joins to form a flat membrane.
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3.发明授权GIESSFORMSTOFF FÜR DIE HERSTELLUNG VON GUSSFORMEN ZUM GIESSEN VON WERKSTOFFEN MIT HOHEM SCHMELZPUNKT 有权GIESSFORMSTOFF适于铸造物料的熔点高铸件形状生产
公开(公告)号：EP1461173B1
公开(公告)日：2005-06-08
申请号：EP01274884.4
申请日：2001-12-07
CPC分类号： B22C1/181 , A61C13/081 , A61C13/083
摘要： The invention relates to a casting material for producing casting molds for casting high-melting point materials. Said casting material comprises a powdered component that contains magnesium oxide and aluminum oxide, and a liquid component. The powdered component additionally contains a calcium aluminate and an alkali fluoride or alkaline-earth fluoride, and the liquid component contains a polyelectrolyte and an alkaline component, said alkaline component adjusting the pH of the liquid component at between 10 and 14. The powdered and the liquid component are mixed, a flowable slip is produced, which is used, once dried, solidified and sintered, to produce a hollow mold.
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