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Ceramic capillary

A ceramic and rivet technology, applied in electrical components, circuits, electrical solid devices, etc., can solve problems such as poor wear resistance, affect hardness, affect bonding strength, etc., to improve mixing uniformity, reduce grain size, and improve bonding. the effect of strength

Active Publication Date: 2018-10-02
CHAOZHOU THREE CIRCLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The welding nozzle surface of the ceramic rivet does not exert enough force on the solder joints under polishing conditions, which affects the joint strength and leads to insufficient joint strength of the solder joints;
[0004] (2) The material of the riving knife made of pure alumina is not wear-resistant, and the material has too many pores, which affects the hardness and poor wear resistance, resulting in a short life of the riving knife;
[0005] (3) The density of particles on the tip surface of the ceramic rivet is too high, which leads to the problem of contamination of the rivet

Method used

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Embodiment 1

[0025] An embodiment of the ceramic rivet according to the present invention, the ceramic rivet body and the welding tip in this embodiment are prepared from the same material, and contain the following ceramic powder in weight percentage: 60% alumina and oxide Zirconium 40%, the average particle size of the ceramic powder is 100nm, the specific surface area is 17m 2 / g, the hardness of the ceramic capillary is 1760HV, and the pore occupancy rate is 74ppm. The inner chamfer and the welding tip surface of the ceramic capillary have protrusions, and the protrusions contain some particles, and the density of the particles is 1 / μm 2 , with a roughness of 0.01 μm.

Embodiment 2

[0027] An embodiment of the ceramic rivet according to the present invention, the ceramic rivet body and the welding tip in this embodiment are prepared from the same material, and contain the following ceramic powder in weight percentage: 64.5% aluminum oxide, 64.5% aluminum oxide, Zirconium 35% and chromium oxide 0.5%, the average particle size of the ceramic powder is 50nm, the specific surface area is 26m 2 / g, the hardness of the ceramic capillary is 1930HV, the pore occupancy rate is 23ppm, the inner chamfer and the welding tip surface of the ceramic capillary have protrusions, the protrusions contain some particles, and the density of the particles is 10 / g μm 2 , with a roughness of 0.2 μm.

Embodiment 3

[0029] An embodiment of the ceramic rivet according to the present invention, the ceramic rivet body and the welding tip in this embodiment are prepared from the same material, and contain the following ceramic powder in weight percentage: 94% aluminum oxide, oxidized 5% zirconium and 1% erbium oxide, the average particle size of the ceramic powder is 70nm, and the specific surface area is 21m 2 / g, the hardness of the ceramic capillary is 2090HV, the pore occupancy rate is 57ppm, the inner chamfer and the welding tip surface of the ceramic capillary have protrusions, the protrusions contain some particles, and the density of the particles is 5 / μm 2 , with a roughness of 0.2 μm.

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Abstract

The invention discloses a ceramic capillary which comprises a body, a hole and a welding nozzle located at one end of the body, wherein the hole extends in a longitudinal axis of the body and stops atan inner chamfer of the welding nozzle; a terminal of the welding nozzle close to the inner chamfer is a welding nozzle surface; a surface of the welding nozzle surface of the welding nozzle has particles; and the density of the particles is 1-10 / Mum2. The ceramic capillary provided by the the invention designs a polishing structure of the welding nozzle surface as a protrusion, improves the joint strength of welding spots, and controls the density of the particles on the welding nozzle surface of the welding nozzle within a certain range, so that the ceramic capillary has relatively good bonding tension while avoiding contamination to the capillary.

Description

technical field [0001] The invention relates to a ceramic rivet, in particular to the material of the welding tip part of the ceramic rivet. Background technique [0002] There are following defects in present ceramic chopper: [0003] (1) The welding nozzle surface of the ceramic rivet does not exert enough force on the solder joints under polishing conditions, which affects the joint strength and leads to insufficient joint strength of the solder joints; [0004] (2) The material of the riving knife made of pure alumina is not wear-resistant, and the material has too many pores, which affects the hardness and poor wear resistance, resulting in a short life of the riving knife; [0005] (3) The density of particles on the tip surface of the ceramic riving knife is too high, which leads to the problem of contamination of the riving knife. Contents of the invention [0006] The object of the present invention is to provide a ceramic riving knife to overcome the disadvanta...

Claims

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Application Information

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IPC IPC(8): C04B35/119
CPCC04B35/119C04B2235/3224C04B2235/3241C04B2235/5454H01L2224/78301
Inventor 黄雪云
Owner CHAOZHOU THREE CIRCLE GRP