Copper-aluminum composite and preparation method thereof

Abstract

The invention provides a copper-aluminum composite material, the raw materials of which are calculated by weight: 30-40 parts of aluminum, 20-30 parts of copper, 6-10 parts of silver, 5-7 parts of tin, 3-5 parts of manganese silicide, rare earth 2 to 4 parts, 2 to 4 parts of cobalt oxide, and 1 to 2 parts of yttrium oxide, and the soft state pure copper plate is degreased, degreased, derusted and roughened by steps (1); (2) washing with selenic acid; ( 3) Place the copper plate obtained through step (1) in the refractory mold, and keep the cavity on both sides of the copper plate, and preheat to 300-500°C; (4) Put aluminum, silver, tin, manganese silicide, rare earth, Putting cobalt oxide and yttrium oxide into a melting furnace for melting; (5) putting the molten solution of step (4) into an induction furnace and performing electromagnetic stirring; (6) pouring the stirred molten solution of step (5) and cooling to room temperature to obtain copper aluminum alloy. The invention can effectively improve the distribution of each molecule of the composite material, make the distribution of each molecule more uniform, have more prominent functions, and have good electrical conductivity and wear resistance.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a copper-aluminum composite material and a preparation method thereof. technical background [0002] In order to save copper resources, my country has developed copper-based composite materials such as copper-clad aluminum cables and copper / aluminum composite bars, and has achieved remarkable benefits. Copper-based composite materials are a kind of metal composite materials with many varieties and wide applications. They can replace copper materials and are widely used in electric power, electrical appliances, automobiles and other fields. The quality requirements for copper-aluminum composite products are also constantly improving. Although copper-aluminum composite materials have a variety of raw material molecular compositions to improve their properties, there is a problem of uneven texture distribution when a variety of raw material molecules are synthesized. On the contr...

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Problems solved by technology

The quality requirements for copper-aluminum composite products are also constantly improving. Although copper-aluminum composite materials have a variety of raw material molecular compositions to improve their properties, there is a problem of uneven texture distribution when a variety of raw material molecules are synthesized. On the contrary, it will affect the quality of the material