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Forming method of zirconium oxide ceramic insertion needle for fibre-optic connector and its equipment

A technology of zirconia ceramics and optical fiber connectors, which is applied in the coupling of optical waveguides, etc., can solve the problems of inability to use automatic operation, and achieve the effect of low requirements for molds and equipment and excellent performance.

Inactive Publication Date: 2004-02-25
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Colloidal molding cannot be automated using traditional ceramic injection molding ideas due to the lack of plasticity of the slurry

Method used

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  • Forming method of zirconium oxide ceramic insertion needle for fibre-optic connector and its equipment
  • Forming method of zirconium oxide ceramic insertion needle for fibre-optic connector and its equipment
  • Forming method of zirconium oxide ceramic insertion needle for fibre-optic connector and its equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Mix 1000 grams of deionized water, 160 grams of acrylamide, and 4 grams of N,N'-methylenebisacrylamide to prepare a premix. 100 grams of zirconia powder was used as a raw material, mixed with 40 ml of premixed solution, and ball milled for 24 hours to obtain a low-viscosity (<1 Pa·s) zirconia ceramic slurry. Add an appropriate amount of catalyst tetramethylethylenediamine and initiator ammonium persulfate into the slurry, mix well and pour into the feed tank; turn the feed handle to feed slowly, keep the pressure for 2 minutes, and wait for the slurry to solidify for another 7 minutes After demoulding, the inner hole diameter of the green body is 0.136mm measured after drying, and sintered at 1500°C for 2 hours, and the measured inner hole diameter is 0.121mm, which meets the accuracy requirements of the pin green body. After the green body is processed by a precision grinding machine, the dimensional accuracy and various basic properties of the obtained pin products me...

Embodiment 2

[0050] 1000 grams of deionized water, 250 grams of methacrylamide, and 6.25 grams of dipropylene tartaric acid diamide were mixed to prepare a premix. 100 grams of zirconia powder was used as a raw material, mixed with 35 ml of premixed solution, and ball milled for 20 hours to obtain a low-viscosity (<1 Pa·s) zirconia ceramic slurry. Add an appropriate amount of initiator hydrogen peroxide to the slurry, mix it evenly and pour it into the feed tank; turn the feed handle to feed slowly, keep the pressure for 3 minutes, and then demould after the slurry is solidified for another 5 minutes, and measure the green body after drying The diameter of the inner hole is 0.138mm. After sintering at 1520°C for 2 hours, the measured diameter of the inner hole is 0.119mm, which meets the precision requirements of the pin body.

Embodiment 3

[0052] 1000 grams of deionized water, 110 grams of methacrylic acid, and 8 grams of polydimethylacrylic acid were prepared into a premix. 100 grams of zirconia powder was used as a raw material, mixed with 50 ml of premixed solution, and ball milled for 48 hours to obtain a low viscosity (<1 Pa·s) zirconia ceramic slurry. Add an appropriate amount of initiator azo hydrochloride to the slurry, mix it evenly, and pour it into the feeding tank; turn the feeding handle to feed slowly, keep the pressure for 2 minutes, and then release the mold after the slurry is solidified for another 8 minutes, and the green body is dried The diameter of the inner hole was measured to be 0.135mm, and the diameter of the inner hole was measured to be 0.117mm after sintering at 1550°C for 2 hours, which met the accuracy requirements of the pin body.

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Abstract

The present invention relates to a zirconium oxide ceramic insertion needle forming method and its equipment. The zirconium oxide ceramic insertion needle can be used as optical fibre connector and is made up by adopting the following steps: using organic monomer, cross-linking agent and deionized water and making them into premixed material, then adding ceramic powder body, ball-grinding, addingcatalyst and initiator, injecting the above-mentioned mixed slurry material into mould cavity, forming to obtain blank body, drying and sintering so as to obtain the invented product.

Description

technical field [0001] The invention relates to a molding method and device for a zirconia ceramic ferrule, in particular to a molding method and device for a zirconia ceramic ferrule for an optical fiber connector that requires extremely high dimensional accuracy, and belongs to the technical field of ceramic device preparation. Background technique [0002] The rapid development of the world economy inevitably requires high-speed communication of information, so the development of high-performance, high-speed information superhighway has become a strategic goal of competing research and development in the world in the future. Optical fiber communication is the main body and skeleton of information transmission network and information highway. The progress of this technology is always closely related to the progress of basic optical devices, and will further promote the development of optical device technology and industry. Optical fiber connectors are widely used in optica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/36
Inventor 黄勇马天杨金龙赵雷王铁超
Owner TSINGHUA UNIV
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