Copper-phosphorus alloy and preparation method thereof

Abstract

The invention belongs to metal materials, and in particular discloses a copper-phosphorus alloy and a preparation method thereof. The copper-phosphorus alloy is characterized by comprising the following components in parts by mass: 13.0-23.0% of P, 0.1-0.3% of Ni, 0.001-0.1% of Zr and the balance of Cu. The preparation method comprises the following steps: putting red phosphorus and yellow phosphorus into a sealed crucible, heating and keeping the temperature of a red phosphorus liquid to be 600-620 DEG C or the temperature of a yellow phosphorus liquid to be 60-70 DEG C, putting electrolytic copper, a nickel plate and a zirconium-copper alloy which are added according to a demanded ratio into an intermediate frequency furnace, heating till the components are completely molten, subsequently feeding the liquid red phosphorus and yellow phosphorus into a molten copper-nickel-zirconium alloy solution according to a demanded ratio, sufficiently reacting phosphorus and the copper copper-nickel-zirconium alloy so as to obtain a copper-phosphorus alloy solution with a micro amount of nickel and zirconium, casting the alloy into a mold, and cooling down so as to obtain a copper-phosphorus alloy product. The alloy is simple in process, uniform in product component, low in energy consumption and free of pollution in the production process, and the content of phosphorus in the copper-phosphorus alloy can be as high as 23%.

Description

technical field [0001] The invention belongs to the class of metal materials, and specifically relates to a copper-phosphorus alloy and a preparation method thereof. Background technique [0002] Copper-phosphorus alloy is an important master alloy for the manufacture of copper-phosphorus solder. The manufacturing method of the existing copper-phosphorus solder is generally to add the copper-phosphorus alloy containing 14.5% to 15% (mass fraction, the same below) of the same amount of electrolytic copper (the ratio of copper-phosphorus alloy to electrolytic copper is about 1:1). ), through melting, stirring, casting, extrusion, drawing and other processes in a smelting furnace, the copper-phosphorus solder with a phosphorus content of about 7.0% to 7.5% is obtained. Due to the continuous emergence of new products and new materials and the needs of market competition, many users need to use copper-phosphorus solders with a phosphorus content of 7.8% or even as high as 8.1% (...

AI Technical Summary

Problems solved by technology

The publication number is CN202193831U, and the name is "a high-phosphorus copper alloy smelting device". Although the burning loss of phosphorus can be controlled at 0.05% to 0.1%, it does not point out that the phosphorus in the high-phosphorus copper alloy smelted by the newly invented smelting device is content; the publication number is CN202683104U and the name is "mixer for copper alloy production", which only solves the problems of complex structure, high cost and inconvenient unloading in the production of phosphor copper alloy by using the existing mixing device

[0005] To sum up, the existing copper-phosphorus alloy preparation methods mainly propose various improvement or partial solutions for defects such as complex production process, high energy consumption, and serious environmental pollution, but at present there is no scientific and reasonable phosphorus content exceeding The preparation method of 15% copper-phosphorus alloy