粉末圧延法によるFe-Cuクラッド板の製造

概要

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To attempt a direct production of Cu/Fe clad strips from the powder materials, several factors in the rolling process, by using a newly designed hopper, were investigated, and also mechanical properties of clad strips fabricated in various conditions were examined. The results obtained were summarized as follows: (1) With decreasing the tip angle and height of a separator and particle size of powders, the asperities of Cu/Fe strip boundary became smooth. (2) Because of setting the separator in the hopper, the powder head gave no effect to the thickness and density of strips. (3) Effects of the roll-speed and roll-gap on the thickness and density of strips were similar to those in the rolling for single powders. (4) The tensile strength of sintered, cold rolled and annealed strips was of 28 kg/mm2, which was about 6 times as strong as that of the strip as-sintered at 1000°C.
社団法人粉体粉末冶金協会の論文