BIMETALLIC NONFERROUS METAL-NONFERROUS METAL COMPOSITION AND METHOD OF PREPARATION THEREOF Russian patent published in 1998 - IPC

Abstract RU 2122930 C1

FIELD: nonferrous metallurgy. SUBSTANCE: group of inventions relate to pressure treatment of metals and more particularly to manufacturing bimetallic compositions by plastic codeformation. As base layer material in bimetallic composition, tape of copper with impurity content no more than 0.1% is used, and, as coating material, copper-nickel alloy with 18-20% nickel. Best working characteristics of bimetallic composition are found when summary thickness of coating represents 4 to 29% of thickness of base layer. Summary deformation degree of the packet of copper tape coated with two copper-nickel tapes during cladding process is chosen within a range of 2.4 to 2.7. Process lubricant utilized is 50:50 mineral oil- kerosene mixture. Strip tape is cooled to temperature below 30 C. Cold rolling is carried out at 370-480 C for 700-740 min, followed by cooling with furnace to temperature below 150 C. EFFECT: nonmagnetic composite with white surface is apt to vary bimetal shades. 2 cl

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RU 2 122 930 C1

Authors

Zavertjaev A.V.

Kitsenko V.V.

Pavlov V.G.

Kadyrov R.Z.

Zverev N.V.

Poljakova V.P.

Lugovskikh Eh.P.

Kostarev P.D.

Dates

1998-12-10Published

1997-04-07Filed