High-strength corrosion-resistant copper-based alloy bar for ocean engineering and preparation method thereof

Abstract

The invention relates to a high-strength corrosion-resistant copper-based alloy bar for ocean engineering. The alloy bar comprises the following components: aluminum accounting for 13% to 23% of the total weight of the alloy bar, iron accounting for 3% to 17% of the total weight of the alloy bar, tin accounting for 0.5% to 8% of the total weight of the alloy bar, zinc accounting for 1% to 15% of the total weight of the alloy bar and the balance of copper. The invention further relates to a preparation method of the high-strength corrosion-resistant copper-based alloy bar for the ocean engineering. According to the method, proper amount of the tin, the zinc and other elements are added on the basis of the traditional copper-based alloy; and the content of the aluminum is increased properly, thereby enhancing the compressive strength, the corrosion resistance and the like of the alloy. As a result, the performance of a bar material QAL9-4 made of the alloy is enhanced. Relative to the preparation method of the bar material QAL9-4, as the method provided by the invention is used, the only requirement is to squeeze the bar material without being forged, but the obtained mechanical performance is equal to that of the bar material being forged. Therefore, the method provided by the invention has the advantages that the machining processes are reduced; the production efficiency is improved; and the production cost is lowered.

Description

technical field

[0001] The invention relates to the field of alloy rods, in particular to a high-strength corrosion-resistant copper-based alloy rod for marine engineering and a preparation method thereof. Background technique

[0002] With the rapid increase of population and the rapid development of social economy, the phenomenon of global resource shortage has emerged, such as the shortage of fresh water resources and energy resources, which has become an obstacle to the sustainable development of the global economy. Therefore, people have proposed the development of marine resources, the development of marine resources It will become a major research topic in this century. To develop marine resources, it is first necessary to make various tools as a means of development, and for this purpose to manufacture related machinery and equipment. The ocean is different from the land. The seawater and ocean atmosphere contain chlorides and sulfides, which have a great corrosion ...

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