Method of making electric heater socket connector plug

A manufacturing method and electric heater technology, which are applied in the manufacturing of contacts and other directions, can solve the problems of complex process, low bonding strength of metallized layers, and high manufacturing cost, and achieve the effects of high bonding strength, shortening maintenance time, and reducing manufacturing cost.

Active Publication Date: 2008-06-18
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, molybdenum-manganese metallization is a relatively mature method, but the process is complicated, the production cost is high, and the bonding strength of the metallization layer is low.

Method used

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  • Method of making electric heater socket connector plug

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 As shown, a ceramic metallization sealing method is used to manufacture electric heater connectors, which can be used on tubular electric heaters in special environments such as chemical industry. Using ceramic metallization and sealing method technology, by adjusting the slurry formula of metal molybdenum and manganese, improving the sintering method and sealing method, and using the characteristics of corrosion resistance and good electrical insulation of ceramic materials, this connector is made It has the characteristics of corrosion resistance, temperature resistance, radiation resistance, air tightness and electrical insulation performance, which can increase the service life of the electric heater and reduce the product cost. The specific method steps are as follows:

[0040] (1) Preparation of metallization paste

[0041] Get 500 grams of 300-order molybdenum powder, 500 grams of 300-order manganese powder, and 500 grams of 300-order additive, an...

Embodiment 2

[0052] (1) Preparation of metallization paste

[0053] Get 500 grams of 300-order molybdenum powder, 500 grams of 300-order manganese powder, and 500 grams of 300-order additive, and ball mill them in a ball mill for 12 hours respectively before use. Pour 285g of ethyl acetate into a 500ml ground-mouth bottle, and add 15 grams of nitrocellulose and stir. After 24 hours, the nitrocellulose is completely dissolved and set aside. Take by weighing 250 grams of molybdenum powders, 125 grams of manganese powders, 100 grams of additives and 25 grams of solvents from the ground material, and ball mill and mix them for 5 hours in a ball mill jar. Thereafter, the metallization paste was poured into glassware for later use.

[0054] (2) Slurry coating

[0055] Put the cleaned and dried ceramic tube on the rotating device, paint the required parts of the ceramic tube by hand according to the drawings, and let it dry after coating. The metallization paste coating thickness is 0.05mm.

...

Embodiment 3

[0066] (1) Preparation of metallization slurry:

[0067] Get 500 grams of 300-order molybdenum powder, 500 grams of 300-order manganese powder, and 500 grams of 300-order additive, and ball mill them in a ball mill for 12 hours respectively before use. Pour 270g of ethyl acetate into a 500ml grinding bottle, and add 30g of nitrocellulose and stir. After 24 hours, the nitrocellulose is completely dissolved and set aside. Take by weighing 325 grams of molybdenum powders, 75 grams of manganese powders, 75 grams of additives and 25 grams of solvents from the ground material, and ball mill and mix for 2 hours in a ball mill tank. Thereafter, the metallization paste was poured into glassware for later use.

[0068] (2) Slurry coating

[0069] Put the cleaned and dried ceramic tube on the rotating device, paint the required parts of the ceramic tube by hand according to the drawings, and let it dry after coating. The metallization paste coating thickness is 0.05mm.

[0070] (3) M...

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Abstract

The invention relates to a manufacture method of a plug of a connector of an electric heater. The method comprises the following process steps: (1) preparation of metallising slurry; (2) coating of slurry; (3) metallising sintering; (4) glazing and glost firing; (5) plating and (6) brazing. Compared with traditional technologies, the invention adopts ceramic metallising and sealing process, improves the sintering method and sealing method by adjusting the slurry formulation of metal molybdenum and manganese, and utilizes the characteristics of ceramic material of good corrosion resistance and electric insulation performance, thus leading the connector to be characterized by anti-corrosion performance, heat resistance, radiation resistance, good sealing performance, good electric insulation performance, prolonging the service life of the electric heater, and reducing the cost of products.

Description

technical field [0001] The invention relates to a ceramic metallization sealing process, in particular to a ceramic metallization sealing method for an electric heater connector. Background technique [0002] Ceramics have high temperature resistance, radiation resistance, good air tightness, and good electrical insulation performance. Ceramics and metals are connected by special welding technology. my country has adopted this technology in electric vacuum devices since the 1950s, and has developed rapidly. The welding methods of sintered metal powder method and active metallization method were quickly mastered. Now my country's ceramic-metal sealing and welding technology has been applied to many industries, and it has entered the stage of self-design and development of new materials and new methods from experimental research and application. With the development of the electronics industry and nuclear energy, many products are manufactured using ceramic-metal sealing techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/16C04B41/88
Inventor 王玮周群王启明薛峰
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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