FIELD: production of filtering foamceramic materials used in metallurgy for filtration of metals melts.
SUBSTANCE: for preparation of ceramic slip, use is made of refractory mixture containing the following components, mass-%: fractionated synthetic corundum, 35.2-52.8; finely-dispersed oxidal, 4.0-6.0; kaoline, 0.8-1.2; alumo-chromophosphate binder including metal element contained in refractory filler, 36-54; aqueous acryl emulsion of 45-52-% concentration, 4.0-6.0. Aqueous emulsion is prepared from alumochromophosphate binder and aqueous acryl emulsion; dry mixture of synthetic corundum, oxidal and kaoline is introduced in aqueous suspension; ceramic slip is homogenized. Reservoir with blank made from organic foam is filled with definite amount of ceramic slip depending on thickness of ceramic straps in foamceramic filter; then, impregnation is carried out in mode of cyclic deformation till complete absorption of ceramic slip followed by drying and burning at temperature not below working temperature of foamceramic filters.
EFFECT: enhanced structural strength of sintered foam material.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| REFRACTORY COATING COMPOSITION | 2005 |
|
RU2299871C1 |
| METHOD OF FILTERING FOAM CERAMICS PRODUCTION | 0 |
|
SU1770314A1 |
| METHOD FOR MAKING FILTER FOAMED CERAMICS | 2005 |
|
RU2351573C2 |
| METHOD OF MANUFACTING CERAMIC FOAM FILTER FOR ALUMINUM MELT PROCESSING | 2018 |
|
RU2684628C1 |
| IMPROVED CERAMIC FOAM FILTER FOR IMPROVED FILTERING OF MELT CAST IRON | 2006 |
|
RU2380138C2 |
| SLURRY FOR MANUFACTURING CERAMIC-FOAM FILTERS | 1993 |
|
RU2084428C1 |
| METHOD OF MANUFACTURE OF FILTRATING CERAMICS FOR METAL WITH VARYING DENSITY | 0 |
|
SU1759815A1 |
| ALUMINA-BASE CERAMIC MATERIAL, ARTICLE MADE OF CERAMIC MATERIAL (VARIANTS) AND METHOD FOR THEIR PREPARING | 2002 |
|
RU2224548C2 |
| METHOD FOR MAKING FOAMED CERAMIC FILTER OF TITANIUM CARBIDE | 2004 |
|
RU2280536C1 |
| METHOD OF HARDENING WORKPIECES FROM CORUNDUM-QUARTZ CERAMICS | 2019 |
|
RU2713541C1 |
