Casting method of rare earth alloy copper strip

Abstract

The invention discloses a casting method of a rare earth alloy copper strip; the specific of the casting method is as follows: charging-covering-smelting-blending and dregs catching-warming a converter and pouring copper water-adding rare earth-horizontally continuous casting; wherein the additive amount of the compound rare earth accounts for 0.03-0.05% of the weigh of copper material; the compound rare earth comprises lanthanum and chromium which account for 0.01-0.07% of the weigh of the rare earth; zinc accounts for 0.5-5.0% of the weigh of the rare earth; chromium accounts for 0.5-5.0% of the weigh of the rare earth; and zirconium accounts for 0.5-5.0% of the weigh of the rare earth. The casting method effectively removes various complex harmful impurities brought about by waste material and plating white material by adding compound rare earth into a heating preserving furnace. The casting method can effectively improve the form, size and distribution of sulfide, improves the machining operation performance, causes the copper strip to have good welding performance, the mechanical property of the copper strip to be increased, and the overall performance of the phosphor bronze strip to be better.

Description

Technical field [0001] The invention relates to a method for melting and casting a rare earth alloy copper strip, in particular to a method for melting and casting a rare earth-added tin phosphor bronze strip. Background technique [0002] Existing enterprises use new materials such as cathode copper and tin ingots in the process of casting tin-phosphorus bronze strips, which will result in higher costs and lower profits. Therefore, at present, recycled old materials and whitening materials are mostly used to put into the furnace, which can save about 3,000 yuan per ton of product compared with new materials. However, the recovered old materials and whitening materials have complex components. If the solvent used when the normal new materials are put into the furnace is added during the production process, the harmful impurities in the copper cannot be effectively removed, and the processing performance and mechanical properties of the produced copper strip The performance canno...

AI Technical Summary

Problems solved by technology

However, the recovered old materials and white-plated materials have complicated components. If the solvent used in the normal new materials is added to the furnace during the production process, the harmful impurities in the copper cannot be effectively removed, and the processing performance and mechanical properties of the produced copper strips will be reduced. The performance cannot meet the requirements corresponding to the grade of tin phosphor bronze