Vacuum electronic tube-sealed low-silver multi-component alloy material and preparation method thereof

A technology of vacuum electron tubes and multi-element alloys, applied in the field of sealing materials, can solve the problems of increasing the cost of sealing materials, achieve the effects of improving airtightness, reducing material costs, improving economic benefits and market competitiveness

Inactive Publication Date: 2017-03-01
WUXI RIYUE ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the price of silver has gradually soared, the cost of sealing materials has been greatly increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The applicant provides a low-silver multi-component alloy material for sealing vacuum electron tubes, and its components and the mass percentages of each component are shown in Table 1. The concrete preparation steps of its preparation method are as follows:

[0020] (1) Put Cu, Co, and Ni in a vacuum melting furnace, and after the furnace is evacuated to 1Pa, the furnace is heated to 1200°C, and then cooled to room temperature to make a copper-cobalt-nickel master alloy;

[0021] (2) Put the copper-cobalt-nickel master alloy and Ag, Si, B, Ge, Ce, Nd components together into a vacuum furnace and pump it to 4×10 - 2 After Pa, heat the furnace to 1000°C and keep it warm for 20 minutes; after the molten liquid is formed, cool down to 900°C, pour the molten liquid into the mold, and take the mold out of the vacuum furnace after the temperature drops to room temperature , to obtain the required ingot;

[0022] (3) The ingot obtained in the step (2) is first stripped by c...

Embodiment 2

[0025] The applicant provides a low-silver multi-component alloy material for sealing vacuum electron tubes, and its components and the mass percentages of each component are shown in Table 1. The concrete preparation steps of its preparation method are as follows:

[0026] (1) Put Cu, Co, and Ni in a vacuum melting furnace, vacuumize the furnace to 0.5Pa, then heat the furnace to 1300°C, and then cool to room temperature to make a copper-cobalt-nickel master alloy;

[0027] (2) Put the copper-cobalt-nickel master alloy together with Ag, Si, B, Ge, Ce, and Nd components into a vacuum furnace and pump to 2×10 - 1 After Pa, heat the furnace to 1050°C and keep warm for 25 minutes; after the molten liquid is formed, cool down to 950°C, pour the molten liquid into the mold, and take the mold out of the vacuum furnace after the temperature drops to room temperature , to obtain the required ingot;

[0028] (3) The ingot obtained in the step (2) is first stripped by car to remove t...

Embodiment 3

[0031] The applicant provides a low-silver multi-component alloy material for sealing vacuum electron tubes, and its components and the mass percentages of each component are shown in Table 1. The concrete preparation steps of its preparation method are as follows:

[0032] (1) Put Cu, Co, and Ni in a vacuum melting furnace, and after the furnace is evacuated to 0.1Pa, the furnace is heated to 1350°C, and then cooled to room temperature to make a copper-cobalt-nickel master alloy;

[0033] (2) Put the copper-cobalt-nickel master alloy and Ag, Si, B, Ge, Ce, Nd components together into a vacuum furnace and pump it to 4×10 - 1 After Pa, heat the furnace to 1100°C and keep warm for 30 minutes; after the molten liquid is formed, cool down to 1000°C, pour the molten liquid into the mold, and take the mold out of the vacuum furnace after the temperature drops to room temperature , to obtain the required ingot;

[0034] (3) The ingot obtained in the step (2) is first stripped by c...

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PUM

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Abstract

The invention provides a vacuum electronic tube-sealed low-silver multi-component alloy material and a preparation method thereof. The vacuum electronic tube-sealed low-silver multi-component alloy material comprises the following components by mass percentage: 35-45% of Ag, 45-55% of Cu, 5-8% of Si, 0.6-0.8% of Ni, 0.4-0.6% of B, 0.3-0.5% of Ge, 0.3-0.5% of Nd, 0.2-0.3% of Ce, and 0.2-0.3% of Co. The preparation method comprises the following steps: melting, casting, solid saluting, ageing, turning, cold rolling, tempering, annealing and fine processing. The sealing material has the advantages of high cleanliness, good flowability, corrosion resistance, good antioxidation performance, low sealing temperature, and low cost.

Description

technical field [0001] The invention relates to the technical field of sealing materials for vacuum electron tubes in the vacuum electronics industry, in particular to a low-silver-content multi-element alloy sealing material. Background technique [0002] In the vacuum tube sealing industry, due to the high frequency of use of vacuum tubes, it is required that the vacuum tube seal has high airtightness, good mechanical properties of the sealing material, strong corrosion resistance and oxidation resistance. Because of its excellent sealing performance, silver-based sealing materials have occupied a firm position in the use of vacuum tube sealing materials. As the price of silver gradually soared, the cost of sealing materials was greatly increased. Therefore, a low-silver alloy solder with excellent comprehensive properties has become an urgently needed sealing material. Contents of the invention [0003] In view of the above problems in the prior art, the applicant pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C30/02C22C1/03C22F1/08
CPCC22C9/00C22C1/03C22C30/02C22F1/08
Inventor 晏弘
Owner WUXI RIYUE ALLOY MATERIALS
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