INVESTIGATION OF THE TECHNOLOGY FOR MELTING STAINLESS STEELS IN VACUUM ARC FURNACES
Abstract
High-purity austenitic stainless steel, low in nonmetallic inclusions and gases, with the use of vacuum arc furnaces and ordinary charge materials, may be obtained by (1) melting the billet from charge materials in an induction vacuum furnace, (2) remelting this billet in a vacuum arc furnace wixidation, (3) vibrating the molten metal, and (4) remelting the ingot in the vacuum arc furnace under a layer of fluid flux. The surface of the ingot melted in vacuum arc furnaces with water-cooled copper igot molds was better than the surface of ingots melted in air (except for reversed polarity melting), and was particularly good when the remelting was performed under a layer of flux. This permitted a substantial reduction in the loss of metals during rough machih the se of H deoxidation, (3) vibrating the molten metal, and (4) remelting the ingot in the vacuum arc furnace under a layer of fluid flux. The surface of the ingot melted in vacuum arc furnaces with water-cooled copper igot molds was better than the surface of ingots melted in air (except for reversed polarity melting), and was particularly good when the remelting was performed under a layer of flux. This permitted a substantial reduction in the loss of metals during rough machining of the ingots, and in a number of cases made it possible to eliminate machining completely. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 28, 1961
- Accession Number
- AD0264621
Entities
People
- E.i. Serebriyskiy
- I.v. Polin
Organizations
- National Air and Space Intelligence Center