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A technique has been developed for the industrial production of steel plate clad on one or both sides with stainless steel. This semiproduct can then be hot and cold rolled to form thinner products. The technique is based on the coating of stainless steel plate with an electrophoretic deposit of NiO, which is subsequently reduced and sinterised by heat treatment in a reducing atmosphere. After assembly of the plating material on the low-C steel by edge welding, the sandwich is heated and hot rolled to form two-side-clad semis characterised by an excellent metallurgical bond at the stainless-steel/base-steel interface. Characterisation tests performed on samples taken from the semiproducts show that adhesion is indeed high, with shear strengths of over 300 MPa. In a later stage, the samples were hot rolled in a pilot plant to a thickness of about 3.5 mm, followed by cold rolling to approximately 1 mm. The electrophoresis-reduction plant can treat stainless steel plate of the following dimensions: - Maximum: 3200 x 1750 mm - Minimum: 750 x 750 mm - Thickness: 14 to 40 mm

Additional information

Authors: TAMBA A, Centro Sviluppo Materiali S.p.A., Roma (IT);CAVELLI M, Centro Sviluppo Materiali S.p.A., Roma (IT)
Bibliographic Reference: EUR 12217 IT (1989) 45 pp., MF, ECU 4, blow-up copy ECU 6.25
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