Accession Number : AD0266687

Title :   SANDWICH ROLLED WIDE STEEL SHEETS

Corporate Author : UNITED STATES STEEL CORP PITTSBURGH PA

Personal Author(s) : HEGER,JAMES J. ; FOGLEMAN,EDWARD L.

Report Date : OCT 1961

Pagination or Media Count : 1

Abstract : Sandwich rolling provides alloy and stainless steel sheets in sizes and thicknesses previously unattainable. Sheets, 125 in. in width and 240 in. in length, were produced in thicknesses of 0.030 to approximately 0.100 in. on conventional plate mill facilities. The construction of a sandwich pack assembly involves enveloping a number of alloy or stainless core plates with carbon steel cover plates to produce a laminated slab, processed as a single assembly. The use of plate mill facilities makes it possible to produce wide sheets and minimize end-to-end thickness variations and crown by cross rolling. Better sheet thickness controls are established through the simultaneous reduction of a multiple number of plates since any variation from the desired hot rolled finishing thickness is only fractionally distributed to each sheet. By heating and soaking the core plates prior to rolling and by subsequently annealing the sheets while within the carbon envelope, the need for a protective atmosphere to minimize decarburization is eliminated. (Author)

Descriptors :   *MANUFACTURING, *SHEETS, HEAT TREATMENT, METAL PLATES, PRECISION FINISHING, PROCESSING, PRODUCTION, QUALITY CONTROL, ROLLING MILLS, STAINLESS STEEL, STEEL, THICKNESS

Distribution Statement : APPROVED FOR PUBLIC RELEASE