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Ternary alloy sealing-in material and preparation method thereof

A technology of sealing materials and ternary alloys, which is applied in the fields of Ga ternary alloy sealing materials, Cu, and Ag, can solve the problems of high energy consumption that cannot meet the needs of society and increase production costs

Active Publication Date: 2016-12-14
WUXI RIYUE ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, the melting point of traditional silver-based solder (such as AgCu28, AgCu50, etc.) is above 780°C, and the temperature during sealing is required to reach 850-1000°C or higher. High sealing temperature requires a lot of energy consumption. At the same time, the problem is that the production cost is greatly increased.
Today's society advocates the construction of a new type of energy-saving society, and the high energy consumption in vacuum electronic sealing production is difficult to meet the needs of the society

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The applicant provides a ternary alloy sealing material whose components and the quality of each component are shown in Table 1. Concrete preparation method is as follows:

[0021] (1) Put Ag, Cu, and Ga into the vacuum melting furnace according to the ratio, and the vacuum degree in the furnace reaches 4×10 -2 Finally, heat the furnace to 1000°C and keep it warm for 20 minutes;

[0022] (2) After Ag, Cu, and Ga are completely melted in the vacuum furnace to form a melt, cool down to 800°C, pour the melt into the shaping mold, and remove the shaping mold from the vacuum furnace after the temperature drops to room temperature. Take it out to get the ingot needed for processing the welding material;

[0023] (3) Solid solution treatment the ingot obtained in step (2) at 600° C., heat it for 30 minutes, and then rapidly cool it to room temperature to ensure that a supersaturated solid solution is obtained, and then perform an aging treatment at 300° C. for 1 hour;

[00...

Embodiment 2

[0027] The applicant provides a ternary alloy sealing material whose components and the quality of each component are shown in Table 1. Concrete preparation method is as follows:

[0028] (1) Put Ag, Cu, and Ga into the vacuum melting furnace according to the ratio, and the vacuum degree in the furnace reaches 2×10 -1 After Pa, heat the furnace to 1050°C and keep it warm for 30 minutes;

[0029] (2) After Ag, Cu, and Ga are completely melted in the vacuum furnace to form a melt, cool down to 850°C, pour the melt into the shaping mold, and remove the shaping mold from the vacuum furnace after the temperature drops to room temperature. Take it out to get the ingot needed for processing the welding material;

[0030] (3) Solid solution treatment the ingot obtained in step (2) at 650° C., heat it for 35 minutes, and then rapidly cool it to room temperature to ensure that a supersaturated solid solution is obtained, and then perform an aging treatment at 350° C. for 1.5 hours;

...

Embodiment 3

[0034] The applicant provides a ternary alloy sealing material whose components and the quality of each component are shown in Table 1. Concrete preparation method is as follows:

[0035] (1) Put Ag, Cu, and Ga into the vacuum melting furnace according to the ratio, and the vacuum degree in the furnace reaches 4×10 -1 After Pa, heat the furnace to 1100°C and keep it warm for 40 minutes;

[0036] (2) After Ag, Cu and Ga are completely melted in the vacuum furnace to form a melt, cool down to 900°C, pour the melt into the shaping mold, and remove the shaping mold from the vacuum furnace after the temperature drops to room temperature. Take it out to get the ingot needed for processing the welding material;

[0037] (3) Solid solution treatment the ingot obtained in step (2) at 750° C., heat it for 40 minutes, and then rapidly cool it to room temperature to ensure that a supersaturated solid solution is obtained, and then perform an aging treatment at 400° C. for 2 hours;

[0...

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Abstract

The invention provides a ternary alloy sealing-in material and a preparation method thereof. The ternary alloy sealing-in material is prepared from, by mass percent, 35%-45% of Ag, 45%-55% of Cu and 5%-15% of Ga. The preparation method of the ternary alloy sealing-in material comprises the steps of smelting, casting, solid solution, ageing, turning, cold rolling, tempering, annealing and finish machining. The prepared sealing-in material has the beneficial effects of being high in cleanliness, resistant to corrosion, good in oxidation resistance, low in cost and the like.

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 an Ag, Cu, Ga ternary alloy sealing material. Background technique [0002] With the rapid development of modern information technology, aerospace technology and vacuum electronic technology, brazing technology is widely used in the welding of complex structures and precision structures due to its unique superior performance. In recent years, especially with the rapid development of vacuum electronic packaging technology, in the vacuum electronic tube sealing industry, due to the high frequency of use of vacuum electronic tubes and the requirement to maintain a vacuum state, the sealing materials for vacuum electronic tubes, especially ceramics and Metal and metal-to-metal sealing materials have relatively high requirements. [0003] Silver-based solder has become widely recognized as an excellent material su...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C30/02C22C1/02C22F1/08C22F1/16
CPCC22C1/02C22C9/00C22C30/02C22F1/08C22F1/16
Inventor 宴弘
Owner WUXI RIYUE ALLOY MATERIALS
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