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Ceramic material for metal and high-temperature glass insulator welding encapsulation mold

A technology of high-temperature glass and welding packaging, which is applied in the field of metal and high-temperature glass insulator welding packaging mold ceramic materials, can solve the problems of polluting the workshop environment, short service life, affecting the health of operators, etc. Good results

Active Publication Date: 2015-05-06
许行彪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many defects in the mold made of graphite: for example, the graphite welding packaging mold material is very easy to oxidize at a high temperature of 980-1100°C, and the oxidized graphite dust sticks to the surface of the product and cannot be removed. Replacement, the service life is extremely short, especially a pre-oxidation welding packaging process, when the temperature reaches about 650 ° C, wet nitrogen is sprayed into the furnace to oxidize the metal, so that the m

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Raw materials

[0038] Carbon 5%, aluminum 10%, aluminum oxide 10%, titanium carbide 20%, boron carbide 10%, silicon 35%, diyttrium trioxide 5%, cerium oxide 5%, the total is 100%.

[0039] (2) Preparation method

[0040] The above-mentioned raw material powders are mixed, granulated and pressed, sintered at a high temperature of 1400-1800 ℃, and then processed by high-precision numerical control equipment.

Embodiment 2

[0042] (1) Raw materials

[0043] Carbon 0.5%, aluminum 30%, aluminum oxide 0.5%, titanium carbide 9%, boron carbide 20%, silicon 20%, diyttrium oxide 10%, cerium oxide 10%.

[0044] (2) Preparation method

[0045] Similar to Example 1, process parameters are adjusted according to actual conditions.

Embodiment 3

[0047] (1) Raw materials

[0048] Carbon 30%, aluminum 0.1%, aluminum oxide 20%, titanium carbide 30%, boron carbide 0.9%, silicon 18%, diyttrium oxide 0.1%, cerium oxide 0.9%.

[0049] Similar to Example 1, process parameters are adjusted according to actual conditions.

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PUM

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Abstract

The invention discloses a ceramic material for a metal and high-temperature glass insulator welding encapsulation mold. The ceramic material contains the following ingredients: carbon, at least one of aluminum, aluminum oxide and aluminum nitride, at least one of boron carbide, boron nitride, titanium, titanium carbide, titanium carbonitride and titanium dioxide, at least one of silicon, silicon nitride and calcium oxide, and at least two of yttrium oxide, cerium oxide, chromium carbide, lithium, lithium carbonate, lanthanum oxide, nickel, molybdenum carbide and zirconium oxide. The ceramic material has the advantages that the ceramic material for the welding encapsulation mold is used for encapsulating metal and a high-temperature glass insulator, the performance is excellent, the usage temperature reaches up to about 1,100 DEG C, the ceramic material does not deform at high temperature, is good in cold-hot rapid denaturation, does not adhere melted high-temperature glass insulators and is not oxidized, the problem that oxidized ceramic dust is adhered to the glass insulators cannot occur, carburization of the surface of the metal cannot occur, the quality of product is not affected, and the service life is over 10 times that of a graphite encapsulation material under the same conditions, so that the ceramic material is the best material for replacing graphite encapsulation materials at present.

Description

technical field [0001] The invention relates to a welding packaging mold ceramic material, in particular to a metal and high temperature glass insulator welding packaging mold ceramic material. Background technique [0002] With the rapid development of electronic technology, the precision of welding and packaging in the field of electronic products is getting higher and higher. The mold materials used in traditional metal and high-temperature glass insulator welding and packaging are mostly graphite. Among them, the mold here is different from the traditional one. A tool for forming articles, it is a welding plate or a backing plate, etc., and the metal and high-temperature glass insulators are welded and packaged on this welding plate or backing plate. There are many defects in the mold made of graphite: for example, the graphite welding packaging mold material is very easy to oxidize at a high temperature of 980-1100°C, and the oxidized graphite dust sticks to the surface...

Claims

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Application Information

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IPC IPC(8): C04B35/00C04B35/583C04B35/56C04B35/52C04B35/10
Inventor 许行彪
Owner 许行彪