摘要:
An additive for metallurgic liquids is disclosed which is effective to efficiently remove slag therefrom and comprises at least one colloidal substance mainly consisting of colloidal silica in the siloxane three-dimensional lattice. The additive may include such minerals as opal, kieselgur, tripoli, obsidians, pumices, zeolites, vermiculite or bentonites, either singly or mixed together.
摘要:
A process for the degassing, refining or filtering treatment of liquid metals or alloys wherein the metallic liquid is treated with a solid treatment agent. The process comprises the steps consisting of providing the treatment agent in the form of solid granules (10) in a closed container (1) having two counterposed walls in the shape of perforated diaphragms (2a, 2b), with holes having such dimensions as to retain said granules, and having further lateral walls; interposing said container in the pouring channel, at the base thereof; and passing said metallic liquid through said container through said diaphragms to make contact with said treatment agent in said container. An apparatus for performing the process is also described.
摘要:
@ An additive for metallurgical liquids is disclosed which consists of an alloy formed by admission of one or more gas phase solutes into one or more liquid phase solvents. The solvent is a substance with semiconductor characteristics, and is selected from silicon, germanium, silicon and germanium alloys with various elements of the periodic table and A"'B v and A"B v' compounds where II,III,V, and VI are the respective groups in the periodic table. The solute is a low vapor pressure substance and is selected from lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, cadmium, phosphorus, arsenic, antimony, bismuth, selenium, tellurium, bromine, and iodine in their elemental states or as oxides or salts thereof, in particular carbonates, chlorides, fluorides, or nitrides. The solvent and solute are used in by-weight ratios ranging from 10 -6 % to 99%. Also disclosed is a method of preparing the additive for metallurgical liquids, which consists of liquefying the solvent, bringing the solute to the gas state by heat application, admitting the gasified solute into the liquefield solvent, this admission causing at least a partial dissociation of the gasified solute molecules into atoms and/or ions, and cooling the solute-enrichened solvent to obtain the additive of this invention. Also disclosed is a device for implementing this method.
摘要:
@ An additive for metallurgical liquids is disclosed which consists of an alloy formed by admission of one or more gas phase solutes into one or more liquid phase solvents. The solvent is a substance with semiconductor characteristics, and is selected from silicon, germanium, silicon and germanium alloys with various elements of the periodic table and A"'B v and A"B v' compounds where II,III,V, and VI are the respective groups in the periodic table. The solute is a low vapor pressure substance and is selected from lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, cadmium, phosphorus, arsenic, antimony, bismuth, selenium, tellurium, bromine, and iodine in their elemental states or as oxides or salts thereof, in particular carbonates, chlorides, fluorides, or nitrides. The solvent and solute are used in by-weight ratios ranging from 10 -6 % to 99%. Also disclosed is a method of preparing the additive for metallurgical liquids, which consists of liquefying the solvent, bringing the solute to the gas state by heat application, admitting the gasified solute into the liquefield solvent, this admission causing at least a partial dissociation of the gasified solute molecules into atoms and/or ions, and cooling the solute-enrichened solvent to obtain the additive of this invention. Also disclosed is a device for implementing this method.