STEATITE MATERIAL AND PROCESS OF ITS MANUFACTURE

A composition of steatite material is described containing in mass % with regard to the total mass of the composition: from 68 to 75 % of microcrystalline talc containing less than 0,6 % CaO and less than 1 % Fe2O3; from 10,5 to 12 % of barium carbonate containing more than 98 % BaCO3; from 7,5 to 9...

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Bibliographische Detailangaben
Hauptverfasser:	OBERZAN MARTINA, IMPERL VLASTA
Format:	Patent
Sprache:	eng ; slv
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS BLASTING CABLES CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSULATORS JOINTS OR FITTINGS FOR PIPES LIGHTING LIME, MAGNESIA MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY PIPES REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SLAG SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	A composition of steatite material is described containing in mass % with regard to the total mass of the composition: from 68 to 75 % of microcrystalline talc containing less than 0,6 % CaO and less than 1 % Fe2O3; from 10,5 to 12 % of barium carbonate containing more than 98 % BaCO3; from 7,5 to 9,0 % kaolin containing less than 0,4 % Fe2O3, less than 0,3 % K2O and less than 0,1 % Na2O; from 6,0 to 8,0 % finely ground zirconium silicate containing less than 0,4 % Fe2O3 and less than 0,3 % Na2O; from 1,5 to 2,5 % bentonite containing less than 3 % Fe2O3, less than 2 % CaO, less than 2 % Na2O and less than 2 % K2O; a combination of 0,2 to 0,4 % medium-polymerised polyvinyl alcohol and 0,3 to 0,6 % high-polymerised polyethylenglycol as a plasticizer; and a deflocculant usual for steatite suspensions. The composition is applicable for the manufacture of steatite products having a low dielectric loss factor and low leakage currents for devices where no leakage currents should appear as well as a substitute for usually available steatite materials. Opisan je sestavek za steatitni material, ki vsebuje v mas.% glede na maso celotnega sestavka od 68 do 75% mikrokristaliničnega talka, ki vsebuje manj kot 0,6% CaO in manj kot 1% Fe2O3; od 10,5 do 12% barijevega karbonata, ki vsebuje več kot 98% BaCO3; od 7,5 do 9,0% kaolina, ki vsebuje manj kot 0,4% Fe2O3, manj kot 0,3% K2O in manj kot 0,1% Na2O; od 6,0 do 8,0% fino pomletega cirkonijevega silikata, ki vsebuje manj kot 0,4% Fe2O3 in manj kot 0,3% Na2O; od 1,5 do 2,5% bentonita, ki vsebuje manj kot 3% Fe2O3, manj kot 2% CaO, manj kot 2% Na2O in manj kot 2% K2O; kombinacijo 0,2 do 0,4% srednje polimeriziranega polivinil alkohola in 0,3 do 0,6% visoko polimeriziranega polietilen glikola kot plastifikatorja; in deflokulant, običajen za steatitne suspenzije. Uporaben je za izdelavo steatitnih izdelkov z nizkim faktorjem dielektričnih izgub in nizkimi odvodnimi tokovi za naprave, kjer se ne smejo pojavljati odvodni tokovi, in kot nadomestek za običajno razpoložljive steatitne materiale.ŕ