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An online vertical solution treatment equipment and treatment method for high-strength and high-elastic copper-nickel-cobalt-silicon alloy

A technology of solid solution treatment and treatment method, which is applied to the online vertical solid solution treatment equipment and its treatment field of high-strength and high-elastic copper-nickel-cobalt-silicon alloys, which can solve the problem of low plate shape, affecting the surface quality of the alloy, and friction. Injuries and other issues

Active Publication Date: 2019-03-29
NINGBO XINGYE SHENGTAI GROUP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, as the localization of C7025 and Cu-Ni-Co-Si alloys continues to increase, it is found that the alloys after solution treatment in an air-cushion annealing furnace are easy to dissolve during the solution treatment process due to the low shape of the strip. It is easy to cause scratches, affect the surface quality of the alloy, and it is difficult to meet the requirements of high precision

Method used

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  • An online vertical solution treatment equipment and treatment method for high-strength and high-elastic copper-nickel-cobalt-silicon alloy

Examples

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Effect test

Embodiment 1

[0025]Example 1: An online vertical solution treatment method for a high-strength and high-elastic copper-nickel-silicon alloy (C70250 alloy (Cu-2.6wt%Ni-0.6wt%Si-0.1wt%Mg), thickness 0.1mm, width 450mm) , including preheating, heating and cooling of the strip. The process parameters of the preheating zone are the tension of the tension roller in the furnace 4N / mm2, the temperature of the circulation zone is 800°C, the speed of the circulation fan is 1000rpm, and the temperature of the first heating zone is 1000°C. The temperature in the second heating zone is 830°C, the cooling fan speed is 1000rpm, the annealing speed is 30m / min, the cooling gas is a mixture of hydrogen and nitrogen, and the corresponding ratio is 1:3. The average grain size of the cross-section of the alloy after solution treatment is 20 μm, and the standard deviation σ of the grain size is 1.0 μm, the volume fraction of the residual second phase particles is 0.05%, and the grain size is 1 μm. texture accou...

Embodiment 2

[0026] Example 2: An online vertical solution treatment method for a high-strength and high-elastic copper-nickel-silicon alloy (C70250 alloy (Cu-2.6wt%Ni-0.6wt%Si-0.1wt%Mg), thickness 0.08mm, width 600mm) , including preheating, heating, and cooling of the strip, and the process parameter of the preheating zone is the tension of the tension roller in the furnace 5N / mm 2 , the circulation zone temperature is 800°C, the circulating fan speed is 1200rpm, the first heating zone temperature is 1050°C, the second heating zone temperature is 850°C, the cooling fan speed is 1400rpm, the annealing speed is 40m / min, and the cooling gas is a mixture of hydrogen and nitrogen. The ratio is 1:3. The average grain size of the cross-section of the alloy after solution treatment is 15 μm, and the standard deviation σ of the grain size is 1.0 μm, the volume fraction of the residual second phase particles is 0.01%, and the particle size is 0.5 μm. The alloy brass The texture accounts for 25%, ...

Embodiment 3

[0027] Example 3: An online vertical solution treatment method for a high-strength and high-elastic copper-nickel-silicon alloy (C70250 alloy (Cu-2.6wt%Ni-0.6wt%Si-0.1wt%Mg), thickness 2.0 mm, width 600mm) , including preheating, heating, and cooling of the strip, and the process parameter of the preheating zone is the tension of the tension roller in the furnace 4N / mm 2 , the circulation zone temperature is 830°C, the circulating fan speed is 1200rpm, the first heating zone temperature is 1090°C, the second heating zone temperature is 880°C, the cooling fan speed is 1700rpm, the annealing speed is 50m / min, and the cooling gas is a mixture of hydrogen and nitrogen. The ratio is 1:3. The average grain size of the cross-section of the alloy after solution treatment is 15 μm, and the standard deviation σ of the grain size is 0.5 μm, the volume fraction of the residual second phase particles is 0.2%, and the particle size is 0.25 μm. The alloy brass The texture accounts for 25%, ...

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Abstract

The invention relates to an online vertical solution treatment equipment of a high strength high elasticity copper, nickel, cobalt and silicon-serial alloy and a treatment method thereof. The equipment comprises a vertical continuous heat treatment furnace. A furnace cavity is formed in the vertical continuous heat treatment furnace. The furnace cavity is divided into a circulating region, a firstheating region, a second heating region and a cooling region from top to bottom; the circulating region is used for pre-heating a strip and the temperature range of the circulating region is 800-830DEG C; the first heating region and the second heating region are used for heating the strip, and the temperature range of the first heating region is 1000-1090 DEG C and the temperature range of thesecond heating region is 830-970 DEG C; and the cooling region is used for cooling the heated strip quickly, wherein a cooling fan is arranged in the cooling region, the rotating speed of the coolingfan is 1000-1700rpm, the annealing speed of the strip in the cooling region is 30-60m / min, and the strip is cooled by cooling gas blown from the cooling fan.

Description

technical field [0001] The invention mainly relates to the technical field of non-ferrous metal processing, in particular to an online vertical solid solution treatment equipment and a treatment method for high-strength and high-elastic copper-nickel-cobalt-silicon alloys. Background technique [0002] Cu-Ni-Si alloy is a typical solid solution aging strengthening alloy. Through solution aging treatment, the alloy can precipitate dispersed nano-scale precipitates, so that the alloy has high strength, high elasticity, high electrical conductivity and Excellent stress relaxation resistance and other comprehensive properties, it is used to make connectors, electrical connectors, lead frames and other components of green environmental protection materials, widely used in aerospace, electronic information, automobiles and many other fields. [0003] Age-strengthened C7025 (Cu-Ni-Si-Mg) and Cu-Ni-Co-Si alloys are used as the third and new generation of lead frame materials, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/26C21D9/573C21D9/56C21D1/74C22F1/02C22F1/08
CPCY02P10/20
Inventor 彭丽军马吉苗黄国杰刘峰解浩峰米绪军李江
Owner NINGBO XINGYE SHENGTAI GROUP