Ceramic capsules for determining the sulfur and carbon contents in iron and steel

Abstract

constituent; the goods were fired at 1500~The experimental materials had properties that were superior to the factory products made in accordance with the All-Union State Standard (GOST) 390-69 requirements. The properties of the trial bricks were: A1203 content 33%, refractoriness 1730~ open porosity 23%, compressive strength 20 MPa, and refractoriness under load 0.2 MPa 1350~ Firing loss did not exceed 1.5%. CONCLUSIONSThe strength of goods made from sandy kaolin may be increased by excluding from the technology the process of incorporating adhesives such as sulfite lye and milling finely the bonding kaolin, adding 10-15% finely milled constituent instead of the granular part of the batch, and firing the goods at temperatures not below 1490~The incorporation of plastic clay in the bonding part of the body is more desirable when the kaolin contains a high (more than 10%) concentration of sand.