Compound steel strip by roll bonding

June 26, J. The invention also relates to procedure for continuously forming such stock in strip form, the component metal being chrome-nickel stainless steel and substantially oxygen-free copper. I am familiar with the fact that various procedures have been employed for the production of composite or multi-ply metal stock. For example, I am familiar with the procedure employed in what is termed the jewelers art wherein multiply stock is produced by interposing layers of brazing metal between the principal component metals of the completed stock. Such layers are, however, effective only at certain specific temperatures. I am also familiar with procedures wherein slabs or plates of copper and steel are heated to rolling temperatures and hot rolled in a multiplicity of passes after appropriate treatment such as pickling or the application of nickel coatings to the surfaces to be bonded, for the purpose of removing, or preventin the formation of objectional oxide coatings.
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07.04.2020
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US2558093A - Procedure for making composite metal strip - Google Patents

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USA - Procedure for making composite metal strip - Google Patents

The present study is dedicated to the experimental determination of strain parameters at rolling of aluminium matrix with inserted wire netting. Two types of stainless steel fabric netting with different orientation to the rolling axis were placed between two aluminium strips and hot rolled. The rolling temperature and reduction were varied to achieve the sound bonding between the matrix layers and steel net. During the study, the following main investigations were made: strain on areas of longitudinal and transverse cross sections of the composite was measured; stretching and ovalization of net wiring and changes in the net cell angles were determined; mechanical properties of composites along the rolling direction were tested. The experiments were summarized by following contradiction: the contact pressure, required for the bonding of aluminium layers, produces extreme tensile strain on the inserted wires, reducing the mechanical properties of the reinforcing net and, consequently, reducing the properties of the entire composite. Strips with diagonally oriented reinforcing net showed the best results in the longitudinal tension tests. Keywords: aluminium matrix; steel net; reinforcing; rolling; delamination; mechanical properties.
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Progress in cold roll bonding of metals

Try out PMC Labs and tell us what you think. Learn More. Layered composite materials have become an increasingly interesting topic in industrial development. Cold roll bonding CRB , as a solid phase method of bonding same or different metals by rolling at room temperature, has been widely used in manufacturing large layered composite sheets and foils.
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