High-strength high elasticity Cu-Ti alloy and its preparing process

A manufacturing method and high-elasticity technology, applied in the direction of temperature control, can solve the problems of reducing the yield of strips, prone to cracks, coarsening of ingot grains, etc., to improve the overall performance of alloys, optimize production processes, and reduce production. cost effect

Inactive Publication Date: 2007-12-12
苏州有色金属研究院有限公司
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Problems solved by technology

[0004] However, the method of vacuum melting Cu-Ti alloy has the following problems: ① Due to the high degree of vacuum required in the vacuum furnace melting process, the requirements for the sealing of the furnace body are very high, and composition measurement, composition adjustment and grilling cannot be carried out during smelting. Therefore, the requirements for the composition and impurity content of raw materials are very hig

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  • High-strength high elasticity Cu-Ti alloy and its preparing process

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[0023] The technical scheme of the invention is to use inert gas protection for melting and casting to avoid the effect of alloy elements on oxygen and nitrogen in the air; gas protection is provided in the melting and pouring process to realize the continuous production of Cu-Ti alloy. In the rolling process, the final rolling temperature of hot rolling and the intermediate annealing temperature in the cold rolling process are slightly higher than the solid solution line of the alloy, which can effectively prevent the alloy from forming lamellar structure in this process. The particle size is controlled at 2-10 μm. Through a suitable aging process, the diameter of the Cu-Ti intermetallic compound phase on the section perpendicular to the rolling direction is controlled between 0.02 and 0.2 μm. By adding an appropriate amount of the third element group, the occurrence of overaging can be delayed, the occurrence of cellular reactions can be suppressed, and the electrical conduc...

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Abstract

The invention discloses a method for producing Cu-Ti alloy with high strength and high elasticity, comprising Ti:3.0-4.0wt%, the third element groups: 0.01-0.5wt%. Said method comprises following steps: adding main and auxiliary material to non- vacuum medium-frequency induction furnace, fusion casting with the protection of inert gas; rolling the got casting billet, controlling finishing rolling temperature of hot rolling and intermediate annealing temperature of cold rolling to be higher than alloy solvus, solution treatment or recrystallization anneal treatment at 750 -850 Deg. C, aging treating at 350 -450 Deg. C for 5-20 hours. This invention is characterized in that the phase structure and grain size of alloy are controlled through proper production process, and the comprehensive properties of alloy are greatly improved.

Description

technical field [0001] The invention relates to a Cu-Ti alloy, in particular to a high-strength and high-elasticity Cu-Ti alloy and a manufacturing method thereof, belonging to the technical field of non-ferrous metals. Background technique [0002] Nowadays, electronic products are becoming smaller and lighter, and electronic components are also miniaturized and lightened. Therefore, the thickness of the connector is getting thinner and thinner, and the contact area is getting smaller and smaller. This requires higher and higher strength and conductivity of connector materials. Some commonly used connectors such as tin phosphor bronze and brass can no longer meet the requirements of high-end electronic products. In addition, because beryllium bronze will produce toxic dust when smelting, and it is expensive. Therefore, Cu-Ti alloys with comparable strength to beryllium bronze will receive extensive attention. [0003] Generally speaking, the production process of Cu-Ti ...

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Application Information

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IPC IPC(8): C22C9/00C22C1/02B22D21/00B21B37/74C22F1/08
Inventor 曹兴民郭富安向朝建杨春秀慕思国汤玉琼
Owner 苏州有色金属研究院有限公司
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