Quaternary alloy sealing material

A technology of sealing materials and quaternary alloys, which is applied in the field of sealing materials, can solve problems such as unsatisfactory effects, insufficient airtightness of devices, poor oxidation resistance and corrosion resistance, etc., and achieve oxidation resistance and corrosion resistance Improvement, cleanliness, good anti-corrosion effect

Active Publication Date: 2012-12-05
WUXI RIYUE ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing conventional sealing materials are not ideal for vacuum tubes with high frequency of use. For example, the airtightness of the devices sealed b

Method used

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  • Quaternary alloy sealing material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Put Ag, Cu, Ge and Co into the vacuum melting furnace according to the ratio, evacuate the furnace to 0.04Pa, and then heat to 1280°C;

[0015] (2) After Ag, Cu, Ge, and Co are completely melted in the vacuum melting furnace to form a melt, cool down to 1000°C, pour the melt into the shaping mold, and after the temperature drops to room temperature, remove the shaping mold from the vacuum Take it out from the smelting furnace to obtain the ingot required for processing the sealing material;

[0016] (3) Roll the ingot on a rolling mill. When the thickness reaches 1mm, roll it into a vacuum heat treatment furnace and heat it up to 650°C for 3 hours, then lower it to room temperature, take it out, and roll it to a thickness of 0.1mm. Just the desired shape.

Embodiment 2

[0018] (1) Put Ag, Cu, Ge and Co into the vacuum melting furnace according to the ratio, evacuate the furnace to 0.2Pa, and then heat to 1200°C;

[0019] (2) After Ag, Cu, Ge, and Co are completely melted in the vacuum melting furnace to form a melt, cool down to 1050°C, pour the melt into the shaping mold, and after the temperature drops to room temperature, remove the shaping mold from vacuum Take it out from the smelting furnace to obtain the ingot required for processing the sealing material;

[0020] (3) Roll the cast ingot on a rolling mill. When the thickness reaches 1.5mm, roll it into a vacuum heat treatment furnace and heat it up to 600°C for 2 hours, then lower it to room temperature, take it out, and roll it to a thickness of 0.04mm. into the desired shape.

Embodiment 3

[0022] (1) Put Ag, Cu, Ge and Co into the vacuum melting furnace according to the ratio, evacuate the furnace to 0.4Pa, and then heat to 1350°C;

[0023] (2) After Ag, Cu, Ge and Co are completely melted in the vacuum melting furnace to form a melt, cool down to 1100°C, pour the melt into the shaping mold, and after the temperature drops to room temperature, remove the shaping mold from vacuum Take it out from the smelting furnace to obtain the ingot required for processing the sealing material;

[0024] (3) Roll the ingot on a rolling mill. When the thickness reaches 2mm, roll it into a vacuum heat treatment furnace and heat it up to 700°C for 4 hours, then lower it to room temperature, take it out, and roll it to a thickness of 0.2mm. Just the desired shape.

[0025] The mass of Ag, Cu, Ge, and Co used in Examples 1-3 is shown in Table 1, and the unit is kg.

[0026] Table 1

[0027]

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PUM

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Abstract

The invention provides a quaternary alloy sealing material, which comprises the components with mass percentages as follows: 65 to 73 percent of Ag, 25 to 30 percent of Cu, 0.5 to 5 percent of Ge and 0.1 to 1.0 percent of Co. The specific preparation manner is as follows: (1) Ag, Cu, Ge and Co are put into a vacuum melting furnace in proportion, the furnace is internally vacuumized to pressure of 0.4 to 0.04Pa and then heated to a temperature of 1200 to 1400 DEG C; (2), after Ag, Cu, Ge and Co are completely melted in the vacuum melting furnace to form melted liquid, the temperature is reduced to 1000 to 1100 DEG C, the melted liquid is poured into a shaping die, and after the temperature is reduced to room temperature, the shaping mould is taken out of the vacuum melting furnace and a cast ingot for processing the sealing material is obtained; and (3) the cast ingot is calendered by using a rolling mill, coiled and put into a vacuum heat treatment furnace after the thickness reaches 1 to 2mm, heated to a temperature of 600 to 700 DEG C, thermally insulated for 2 to 5 hours, then cooled to the normal temperature, and is calendered by the rolling mill to the thickness of 0.3 to i.2mm after being taken out, and the quaternary alloy sealing material can be obtained after the cast ingot is trimmed and punched into a needed shape. The quaternary alloy sealing material has the advantages of high cleanliness, good anti-corrosion performance and good anti-oxidation performance.

Description

technical field [0001] The invention relates to a sealing material for a vacuum electron tube in the vacuum electronics industry, in particular to a sealing material for a quaternary alloy of Ag, Cu, Ge and Co. Background technique [0002] In the vacuum tube sealing industry, due to the high frequency of use of vacuum tubes and the need to maintain a vacuum state, the requirements for sealing materials for vacuum tubes, especially ceramics and metals, and metals and metals are relatively high. The existing conventional sealing materials are not ideal for vacuum tubes with high frequency of use. For example, the airtightness of the devices sealed by conventional solder is not good enough, and the anti-oxidation and corrosion resistance are relatively poor under long-term high-frequency operation. Poor wait. Contents of the invention [0003] In view of the above problems in the prior art, the applicant provides a quaternary alloy sealing material. The invention has high ...

Claims

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Application Information

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IPC IPC(8): C22C5/08C22C1/02C22F1/14
Inventor 晏弘
Owner WUXI RIYUE ALLOY MATERIALS
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