Glass powder for nickel-based high-temperature alloy sealing and preparation and use method thereof

Abstract

The invention provides glass powder for nickel-based high-temperature alloy sealing and a preparation and use method of the glass powder. The glass powder comprises the following components in parts by weight: 40-55 parts of SiO2, 12.0 to 18.1 parts of B2O3, 5.0 to 7.6 parts of Al2O3, 3 to 6 parts of Li2O, 1.0 to 3.8 parts of K2O, 0.5 to 1.5 parts of TiO2, 12.0 to 19.0 parts of SrO, 9.0 to 16.0 parts of ZnO, and 4.5 to 8.0 parts of ZrO2. The preparation method comprises the following steps: uniformly mixing the raw materials, smelting in a 1450-1550 DEG C molybdenum silicide high-temperature electric furnace for 4-6 hours, completely melting and clarifying, pouring into cold water, quenching and cracking into broken glass slag, drying, carrying out ball milling, and screening to obtain thehigh-pressure-resistant sealing glass powder. The glass powder is subjected to high-temperature sealing and heat treatment to obtain the matched sealing device. The glass disclosed by the invention is high in sealing strength and mechanical strength, strong in chemical stability, simple and practical in preparation method and use method, and suitable for industrial production.

Description

technical field

[0001] The invention relates to the field of glass materials, in particular to a glass powder used for sealing nickel-based superalloys and a method for preparing and using the same. Background technique

[0002] Electronic glass sealing technology occupies a very important position in the manufacturing process of electric vacuum and electrical connection devices. With the expansion and deepening of the application field, there are more and more applications of electronic components with special requirements, such as in high temperature In the environment, the device is required to have better mechanical properties and electrical insulation properties, and the non-magnetic nickel-based superalloy has become the material of choice for electrical connectors due to its high temperature strength, strong oxidation resistance and excellent corrosion resistance; but the existing domestic High-temperature sealing glass is mainly used for sealing materials such as Kov...

Examples

Embodiment 1

[0023] According to the formula given in Table 1, batching is carried out, and the raw materials for glass are calculated in parts by weight, each part of 5 grams, and the preparation method is as follows;

[0024] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1450°C for 6 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0025] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0026] Add paraffin wax to the glass powder, the amount of the paraffin wax is 4% of the mass of the glass powder, stir and mix evenly at 70°C, and press it into a wax-containing glass blank;

[0027] After 4 hours of dewaxing process at 500°C, then rap...

Embodiment 2

[0031] Carry out batching according to the formula that table 1 provides, glass raw material is counted in parts by weight, every part 5 grams, preparation method is as follows;

[0032] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1500°C for 5 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0033] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0034] Add paraffin wax to the glass powder, the amount of the paraffin wax is 6% of the mass of the glass powder, stir and mix evenly at 60°C, and press it into a wax-containing glass blank;

[0035] After 6 hours of dewaxing process at 350°C, then rapidly raise the temperature t...

Embodiment 3

[0039] Carry out batching according to the formula that table 1 provides, glass raw material is counted in parts by weight, every part 5 grams, preparation method is as follows;

[0040] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1550°C for 4 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0041] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0042] Add paraffin wax to the glass powder, the amount of the paraffin wax is 5% of the mass of the glass powder, stir and mix evenly at 55°C, and press it into a wax-containing glass blank;

[0043]After 7 hours of dewaxing process at 300°C, then rapidly raise the temperature to...

technical field

[0001] The invention relates to the field of glass materials, in particular to a glass powder used for sealing nickel-based superalloys and a method for preparing and using the same. Background technique

[0002] Electronic glass sealing technology occupies a very important position in the manufacturing process of electric vacuum and electrical connection devices. With the expansion and deepening of the application field, there are more and more applications of electronic components with special requirements, such as in high temperature In the environment, the device is required to have better mechanical properties and electrical insulation properties, and the non-magnetic nickel-based superalloy has become the material of choice for electrical connectors due to its high temperature strength, strong oxidation resistance and excellent corrosion resistance; but the existing domestic High-temperature sealing glass is mainly used for sealing materials such as Kov...

Examples

Embodiment 1

[0023] According to the formula given in Table 1, batching is carried out, and the raw materials for glass are calculated in parts by weight, each part of 5 grams, and the preparation method is as follows;

[0024] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1450°C for 6 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0025] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0026] Add paraffin wax to the glass powder, the amount of the paraffin wax is 4% of the mass of the glass powder, stir and mix evenly at 70°C, and press it into a wax-containing glass blank;

[0027] After 4 hours of dewaxing process at 500°C, then rap...

Embodiment 2

[0031] Carry out batching according to the formula that table 1 provides, glass raw material is counted in parts by weight, every part 5 grams, preparation method is as follows;

[0032] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1500°C for 5 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0033] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0034] Add paraffin wax to the glass powder, the amount of the paraffin wax is 6% of the mass of the glass powder, stir and mix evenly at 60°C, and press it into a wax-containing glass blank;

[0035] After 6 hours of dewaxing process at 350°C, then rapidly raise the temperature t...

Embodiment 3

[0039] Carry out batching according to the formula that table 1 provides, glass raw material is counted in parts by weight, every part 5 grams, preparation method is as follows;

[0040] Mix the weighed raw materials evenly, put them into a 99% ceramic alumina crucible, and melt them in a molybdenum silicide high-temperature electric furnace at 1550°C for 4 hours. Dry in an oven for 2 hours, then ball mill for 24 hours, and pass through an 80-mesh sieve to obtain high-pressure sealing glass powder.

[0041] The glass powder is applied to sealing nickel-based superalloys, including inconel alloys, corrosion-resistant alloys, etc., and the method of using it for sealing includes the following steps:

[0042] Add paraffin wax to the glass powder, the amount of the paraffin wax is 5% of the mass of the glass powder, stir and mix evenly at 55°C, and press it into a wax-containing glass blank;

[0043]After 7 hours of dewaxing process at 300°C, then rapidly raise the temperature to...