Formula of copper nickel tin alloy strip and production process

Abstract

The invention discloses a formula of a copper nickel tin alloy strip and a production process. The formula of the alloy strip comprises the following components in percentage by weight: 19.0 to 21.0 percent of Ni, 4.0 to 6.0 percent of Sn, 0.01 to 0.05 percent of Zr and the balance of Cu. The production process comprises the following steps of: proportioning, smelting, bath analysis, deoxidation, converter heat preservation, horizontal continuous casting, solution treatment, surface milling, rough rolling, thickness longitudinal shearing, strong convection bright annealing, cleaning, precision rolling, multistage ageing, bending, straightening and slitting. The production process has no pollution, the production flow is short, the alloy strip blank has small specification size and high quality, cold rolling is directly performed, a hot rolling process is saved, and the production efficiency is improved; the obtained copper nickel tin alloy has the properties of high strength, high elongation, high hardness, high elasticity, stress corrosion resistance and the like, the performance of the copper nickel tin alloy is close to that of beryllium bronze, and the copper nickel tin alloy can partially replace the beryllium bronze to manufacture elastic elements.

Description

technical field [0001] The invention relates to a formula and a production process of a copper-nickel-tin alloy strip. Background technique [0002] The traditional copper-based material beryllium bronze is an elastic alloy with excellent comprehensive properties, but its production cost is high, and there are toxic pollutants in the production process, which seriously endangers the health of production personnel and restricts its production and application. Therefore, there is an urgent need for a new material that can replace this beryllium bronze in performance and will not produce toxic pollutants in the production process. Contents of the invention [0003] The purpose of the present invention is to provide a formula and production process of a copper-nickel-tin alloy that can be used to replace beryllium bronze. [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions: [0005] A for...

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Problems solved by technology

[0002]The traditional copper-based material beryllium bronze is an elastic alloy with excellent comprehensive properties, but its production cost is high, and there are toxic pollutants in the production process, which seriously endangers The health of production personnel restricts its production and application, so it is urgent to need a new material that can replace this beryllium bronze in performance and will not produce toxic pollutants in the production process.

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