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Copper / steel composite material not only has a conductivity of copper , high thermal conductivity, corrosion resistance , beautiful appearance , etc. , but also has the strength of steel , toughness, and low cost, a series of advantages . Copper / steel composite materials are widely used in electronics, metallurgy , automobiles, ships and machinery and other fields. Successfully using welding rolling \detection means at the interface of organization , composition and conducted a more detailed analysis of the study , as well as the mechanical properties of tensile , bending , shear test composite panels . The study showed that : 1 , different heating temperature and holding time of the heat treatment of welded copper / steel hot-rolled Fe in composite panels , the Cu element diffusion no significant impact . 2 when the heat treatment temperature is lower than 600 ° C , composite boards organization no significant changes in the copper side tissue α single phase structure along the rolling direction of the elongated steel side, as a small amount of ferrite and pearlite structure ; the heat treatment temperature is higher than 600 ° C , composite boards occurred changes in the recrystallization . With the heat treatment temperature and holding time is lengthened , the grains continue to grow up . 4 after heat treatment , the tensile strength and flexural strength of the copper / steel composite panels were lower , and with the heat treatment temperature was a downward trend ; while no significant change in the shear strength of the composite panels .
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