High-strength and high-elasticity copper-titanium alloy and manufacturing method thereof

Abstract

The invention discloses a high-strength high-elasticity copper-titanium alloy and a manufacturing method thereof. The copper-titanium alloy comprises the following components in percentage by mass: 2.3%-3.8% of Ti, less than or equal to 0.3% of Ni, less than or equal to 0.3% of Fe, less than or equal to 0.1% of Y, less than or equal to 0.1% of La and the balance of Cu and inevitable impurity elements, wherein the sum of Cu and Ti is greater than or equal to 99.3%. The manufacturing method comprises the steps of vacuum smelting, plate blank casting, hot rolling for a strip, cold rolling, solid solution treatment, aging, finish rolling and the like. The high-strength high-elasticity copper-titanium alloy and the manufacturing method thereof have the following beneficial effects: through the vacuum smelting, a vacuum high-temperature smelting environment is provided, so that active titanium element in the alloy is strictly controlled, the contents of hydrogen, oxygen, nitrogen, inclusions and the like in the prepared copper-titanium alloy are low, the purity of the copper-titanium alloy is high, and gas, impurities and non-metallic inclusions are removed in a refining process for copper and titanium metal, so that the quality of the prepared copper-titanium alloy is improved; and the problems of long production process for the copper-titanium alloy strip and low yield are solved, and shorter process for producing the copper-titanium alloy strip and higher efficiency are achieved, so that large-scale production is facilitated.

Description

Technical field

[0001] The present invention relates to the field of copper-titanium alloy, in particular, a high-strength high-elastic copper-titanium alloy and a method of producing thereof. Background technique

[0002] High-strength elastic copper alloys mainly refers to conductive elastic copper alloys with more than 1000MPa, one of the key materials of conductive elastic components, widely used in electronic and electrical, communications navigation, automotive industry and marine engineering. Beryllium copper has high strength and elastic limit, and has advantages such as excellent corrosion resistance, wear resistance, conductive and thermal conductivity. It is an important high-strength high-elastic copper alloy, but the copper alloy is in smelting and casting. It is an element of strong cancer, which has a huge harm to human health, and the price of beryllium copper is expensive, and the resistance to relaxation is poor, and the timeliness is deformed.

[0003] Titanium...

Images