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A kind of high-strength high-elasticity copper-titanium alloy and its manufacturing method

A technology of copper-titanium alloy and manufacturing method, which is applied to manufacturing tools, metal rolling, furnaces, etc., can solve the problems of unfavorable rapid large-scale production, long production process flow, low yield, etc., and achieves good formability and improved quality. , the effect of high purity

Active Publication Date: 2022-05-27
国工恒昌新材料沧州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper-titanium alloy strip generally adopts the process route of smelting-round billet casting-forging billet opening-hot rolling-cold rolling-solution-aging-rolling. The production process is long and the yield is low, which is not conducive to rapid large-scale production. With the development of components, higher requirements are placed on the strength and formability of high-elastic copper-titanium alloys

Method used

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  • A kind of high-strength high-elasticity copper-titanium alloy and its manufacturing method
  • A kind of high-strength high-elasticity copper-titanium alloy and its manufacturing method
  • A kind of high-strength high-elasticity copper-titanium alloy and its manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The mass percentages of elements in the high-strength and high-elasticity copper-titanium alloy are: Ti2.8%, Ni0.03%, Fe0.15%, Y0.03%, La 0.02%, and the rest are Cu and inevitable impurity elements.

[0025] (1) Vacuum smelting: put high-purity copper, high-purity titanium, electrolytic nickel and other dry alloys into the vacuum induction furnace according to the proportion, first put the bulk raw materials, loosen the upper and lower, avoid bridging, and then evacuate to 20Pa Power transmission smelting, the smelting temperature is 1190 ℃, after smelting and refining for 3 minutes, an appropriate amount of Y and La are added, and the total refining time is 11 minutes;

[0026] (2) Casting into slabs: casting the molten liquid alloy into slabs under atmosphere protection conditions, the discharge temperature is 1150°C, and the slab size is 600mm×180mm;

[0027] (3) Hot-rolled strip: After cleaning and grinding, the cast slab is placed in a heating furnace at 880°C for ...

Embodiment 2

[0034] The mass percentages of elements in the high-strength and high-elasticity copper-titanium alloy are: Ti3.0%, Ni0.04%, Fe0.18%, Y0.03%, La 0.03%, and the rest are Cu and inevitable impurity elements.

[0035] (1) Vacuum smelting: put high-purity copper, high-purity titanium, electrolytic nickel and other dry alloys into the vacuum induction furnace according to the proportion, first put the bulk raw materials, loosen the upper and lower, avoid bridging, and then evacuate to 20Pa Power transmission smelting, the smelting temperature is 1230 ℃, after smelting and refining for 4 minutes, an appropriate amount of Y and La are added, and the total refining time is 13 minutes;

[0036] (2) Casting into slabs: casting the molten liquid alloy into slabs under atmosphere protection conditions, the discharge temperature is 1180°C, and the slab size is 750×200mm;

[0037] (3) Hot-rolled strip: After cleaning and grinding, the cast slab is placed in a heating furnace at 880°C for 14...

Embodiment 3

[0044] The mass percentages of elements in the high-strength and high-elasticity copper-titanium alloy are: Ti3.3%, Ni0.16%, Fe0.21%, Y0.04%, La 0.03%, and the rest are Cu and inevitable impurity elements.

[0045] (1) Vacuum smelting: put high-purity copper, high-purity titanium, electrolytic nickel and other dry alloys into the vacuum induction furnace according to the proportion, first put the bulk raw materials, loosen the upper and lower, avoid bridging, and then evacuate to 20Pa Power transmission smelting, smelting temperature is 1240 ℃, after smelting and refining for 4 minutes, add appropriate amount of Y and La, and the total refining time is 14 minutes;

[0046] (2) Casting into slabs: casting the molten liquid alloy into slabs under atmosphere protection conditions, the discharge temperature is 1190°C, and the slab size is 750×200mm;

[0047] (3) Hot-rolled strip: After cleaning and grinding, the cast slab is placed in a 900°C heating furnace for 14 hours for homog...

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Abstract

The invention discloses a high-strength and high-elasticity copper-titanium alloy and a manufacturing method thereof. The components and mass percentages of the copper-titanium alloy include: Ti2.3‑3.8%, Ni≤0.3%, Fe≤0.3%, Y ≤0.1%, La≤0.1%, the rest are Cu and unavoidable impurity elements, Cu+Ti≥99.3%, the manufacturing method includes vacuum melting-casting into slab-hot-rolled strip-cold rolling-solution-aging ‑Finish rolling and other steps. The beneficial effect of the present invention is that, through vacuum smelting, a vacuum high-temperature smelting environment is provided, thereby strictly controlling the active titanium element in the alloy, so that the content of hydrogen, oxygen, nitrogen and inclusions in the prepared copper-titanium alloy is low, making The copper-titanium alloy has a high degree of purification. During the refining process of copper and titanium metal, gas, impurities and non-metallic inclusions are removed to improve the quality of the copper-titanium alloy. The problem of low efficiency, the production process of copper-titanium alloy strip is shorter and more efficient, which is conducive to large-scale production.

Description

technical field [0001] The invention relates to the technical field of copper-titanium alloys, in particular to a high-strength and high-elasticity copper-titanium alloy and a manufacturing method thereof. Background technique [0002] High-strength elastic copper alloy mainly refers to conductive elastic copper alloy with tensile strength exceeding 1000Mpa. It is one of the key materials of conductive elastic components and is widely used in electronic and electrical engineering, communication and navigation, automobile industry and marine engineering. Beryllium copper has high strength and elastic limit, and has excellent corrosion resistance, wear resistance, electrical and thermal conductivity, etc. It is an important high-strength and high-elasticity copper alloy. It is a strong carcinogenic element, which causes great harm to human health, and beryllium copper is expensive, has poor resistance to stress relaxation and large deformation after aging. [0003] Titanium-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08C21D9/52B21B1/22
CPCC22C9/00C22C1/02C22F1/08C21D9/52B21B1/22B21B2001/221B21B2001/225
Inventor 陈希春王炳正孙晓林李永华梁荣
Owner 国工恒昌新材料沧州有限公司