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High-strength and high-elasticity copper-titanium alloy and manufacturing method thereof

A technology of copper-titanium alloy and manufacturing method, which is applied in the direction of manufacturing tools, metal rolling, furnace types, etc., can solve the problems of long production process flow, unfavorable rapid large-scale production, and low yield, so as to improve quality and formability Good, high purification effect

Active Publication Date: 2021-08-20
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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  • High-strength and high-elasticity copper-titanium alloy and manufacturing method thereof
  • High-strength and high-elasticity copper-titanium alloy and manufacturing method thereof
  • High-strength and high-elasticity copper-titanium alloy and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] High-strength high-elastic copper-titanium alloys were percentage: Ti2.8%, Ni0.03%, Fe0.15%, Y0.03%, La 0.02%, and the rest of Cu and inevitable impurity elements.

[0025] (1) Vacuum smelting: Gao Pure copper, high-purity titanium, electrolyte nickel, etc., in proportion to the vacuum induction furnace, first put a large number of raw materials, and the looseness, avoid the bridge, then vacuum until 20Pa Paving electricity melting, the melting temperature is 1190 ° C, after the melting refinement of 3 minutes, adding the appropriate amount of Y and La, the total refining time is 11 min;

[0026] (2) Pouring is a slab: the molten liquid alloy is cast into a slab under atmosphere protection, and the temperature is 1150 ° C, the slab is 600 mm × 180 mm;

[0027] (3) Hot rolled strip: Take a homogenization treatment of 10 h in an 880 ° C heating furnace after the casting slabs after casting is placed in a 880 ° C heating furnace, and then heat rolled in a thickness of 3 mm at ...

Embodiment 2

[0034] The percentage of elemental quality in high-strength high-elastic copper-titanium alloys was: Ti3.0%, Ni0.04%, Fe0.18%, Y0.03%, La 0.03%, and the rest were Cu and inevitable impurity elements.

[0035] (1) Vacuum smelting: Gao Pure copper, high-purity titanium, electrolyte nickel, etc., in proportion to the vacuum induction furnace, first put a large number of raw materials, and the looseness, avoid the bridge, then vacuum until 20Pa PV-based melting, melting temperature is 1230 ° C, after refining refining for 4 minutes, adding the amount of Y and La, the total refining time is 13 min;

[0036] (2) Pouring as slab: Pouring the liquid alloy of the smelting in the atmosphere protective conditions, the temperature is 1180 ° C, the slab is 750 × 200 mm;

[0037] (3) Hot rolled strip: Take a homogenization treatment for homogenization of 14 h after holding the cast slab cleaning and polished, and then heats up for homogenization, and then heat rolled on 760 to 860 ° C to a shee...

Embodiment 3

[0044] High-strength high-elastic copper-titanium alloys were percentage: Ti3.3%, Ni0.16%, FE0.21%, Y0.04%, La 0.03%, and the rest were Cu and inevitable impurity elements.

[0045] (1) Vacuum smelting: Gao Pure copper, high-purity titanium, electrolyte nickel, etc., in proportion to the vacuum induction furnace, first put a large number of raw materials, and the looseness, avoid the bridge, then vacuum until 20Pa The electricity melting, the melting temperature is 1240 ° C, and the amount of Y and La is added after the refinement of refining for 4 minutes, and the total refining time is 14 min;

[0046] (2) Pouring is a slab: the molten liquid alloy is cast into a slab under atmosphere protection, and the temperature is 1190 ° C, the slab is 750 × 200 mm;

[0047] (3) Hot rolling strip: Take the homogenization of the water after the casting slab cleaning and polishing is placed in a 900 ° C heating furnace, and then heat rolled onto a sheet having a thickness of 5 mm at 780 to 90...

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Abstract

The invention discloses a high-strength high-elasticity copper-titanium alloy and a manufacturing method thereof. The copper-titanium alloy comprises the following components in percentage by mass: 2.3%-3.8% of Ti, less than or equal to 0.3% of Ni, less than or equal to 0.3% of Fe, less than or equal to 0.1% of Y, less than or equal to 0.1% of La and the balance of Cu and inevitable impurity elements, wherein the sum of Cu and Ti is greater than or equal to 99.3%. The manufacturing method comprises the steps of vacuum smelting, plate blank casting, hot rolling for a strip, cold rolling, solid solution treatment, aging, finish rolling and the like. The high-strength high-elasticity copper-titanium alloy and the manufacturing method thereof have the following beneficial effects: through the vacuum smelting, a vacuum high-temperature smelting environment is provided, so that active titanium element in the alloy is strictly controlled, the contents of hydrogen, oxygen, nitrogen, inclusions and the like in the prepared copper-titanium alloy are low, the purity of the copper-titanium alloy is high, and gas, impurities and non-metallic inclusions are removed in a refining process for copper and titanium metal, so that the quality of the prepared copper-titanium alloy is improved; and the problems of long production process for the copper-titanium alloy strip and low yield are solved, and shorter process for producing the copper-titanium alloy strip and higher efficiency are achieved, so that large-scale production is facilitated.

Description

Technical field [0001] The present invention relates to the field of copper-titanium alloy, in particular, a high-strength high-elastic copper-titanium alloy and a method of producing thereof. Background technique [0002] High-strength elastic copper alloys mainly refers to conductive elastic copper alloys with more than 1000MPa, one of the key materials of conductive elastic components, widely used in electronic and electrical, communications navigation, automotive industry and marine engineering. Beryllium copper has high strength and elastic limit, and has advantages such as excellent corrosion resistance, wear resistance, conductive and thermal conductivity. It is an important high-strength high-elastic copper alloy, but the copper alloy is in smelting and casting. It is an element of strong cancer, which has a huge harm to human health, and the price of beryllium copper is expensive, and the resistance to relaxation is poor, and the timeliness is deformed. [0003] Titanium...

Claims

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Application Information

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Patent Type & Authority Applications(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
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