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High-strength titanium-copper alloy strip suitable for conductive elastic components and preparation method thereof

A technology of titanium-copper alloy and components, which is applied in the field of high-strength titanium-copper alloy strip and its preparation, and can solve problems such as toxicity and safety issues that cannot be ignored

Active Publication Date: 2020-09-18
BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, beryllium in beryllium bronze is toxic, and safety issues in the production and use of beryllium bronze cannot be ignored

Method used

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  • High-strength titanium-copper alloy strip suitable for conductive elastic components and preparation method thereof
  • High-strength titanium-copper alloy strip suitable for conductive elastic components and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The specific chemical composition mass percentage of the alloy is: C: 0.005%, Ti: 2.7%, Ce: 0.05%, W: 0.03%, Fe: 0.16%, remaining Cu and unavoidable impurities.

[0024] Electrolytic copper with a purity of 99.9%, titanium sponge with a purity of 99.9%, C, Fe and Ce are mixed in proportion and then loaded into a crucible. Smelting is carried out in a vacuum induction furnace, the alloy refining temperature is 1250°C, the tapping temperature is 1200°C, and cast into steel ingots. The steel ingot is heat-preserved at 850°C and forged into a slab with a thickness of 80mm, and is hot-rolled at 900°C with heat-retaining temperature, and the hot rolling deformation is 94%. After the hot rolling, the slab is subjected to initial rolling, and the initial rolling deformation is 80%, and then annealed at 850° C., and the holding time is 120 s. After annealing, rolling is carried out again, with a deformation amount of 80%, followed by solid solution at 850°C, and the holding tim...

Embodiment 2

[0026] The specific chemical composition mass percentage of the alloy is: C: 0.003%, Ti: 3.0%, Ce: 0.03%, Ta: 0.02%, the remaining Cu and unavoidable impurities. Prepare according to the ingredients and process corresponding to Example 2 in Table 1.

Embodiment 3

[0028] The specific chemical composition mass percent of the alloy is: C: 0.008%, Ti: 3.2%, W: 0.02%, Ta: 0.03%, Fe: 0.18%, remaining Cu and unavoidable impurities. Prepare according to the ingredients and process corresponding to Example 3 in Table 1.

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Abstract

The invention discloses a high-strength titanium-copper alloy strip applicable to a conducting elastic element and a preparation method and belongs to the technical field of titanium-copper alloy strips. The high-strength titanium-copper alloy strip comprises the chemical components including, by weight, 0-0.01% of C, 2.6-3.4% of Ti, 0.001-0.2% of Ce, not greater than 0.3% of the sum of W, Ta, Hfand Fe, and the balance Cu and inevitable impurities. According to the end product performance, the tensile strength is 1149-1230 MPa, the yield strength is 1028-1100 MPa, the heat conductivity coefficient is 92-125 W / (m*DEG C), the specific conductance is 19-27 % IACS, the grain size is 2-15 mum, and the hardness is 320-370 HV. The alloy production process comprises the steps including vacuum smelting, forging, hot rolling, cold rolling, annealing, finished product rolling, ageing, stress relieving annealing and the like. The high-strength titanium-copper alloy strip applicable to the conducting elastic element and the preparation method have the advantages that matching of the high strength, high heat conductivity and high specific conductance of the alloy stirp meets the requirements for strength and heat dissipating performance of the conducting elastic element.

Description

technical field [0001] The invention belongs to the technical field of titanium-copper alloys, and in particular provides a high-strength titanium-copper alloy strip suitable for conductive elastic components and a preparation method. Background technique [0002] Ultra-high-strength copper alloy materials are strategic emerging industries in my country. Ultra-high-strength elastic copper alloys mainly refer to conductive elastic copper alloys with a tensile strength exceeding 1000MPa. They are mainly used in the preparation of conductive elastic components, such as machine instruments, molds, temperature controllers, Relays, auto parts, etc. Beryllium bronze is a typical precipitation-strengthened alloy. Because of its high strength, hardness, elastic limit, and a series of advantages such as corrosion resistance, wear resistance, fatigue resistance, and low temperature resistance, it has been widely used and is known as "colored elastic alloy". The King of Materials". How...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08
CPCC22C1/02C22C9/00C22F1/08
Inventor 魏然王超张乐吕晨熠章清泉李国超吴会云文新理
Owner BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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