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Manufacturing process of a spiral ceramic spring

A production process, spiral type technology, applied in the field of ceramic spring production process, can solve the problems of limited material range, large material consumption, high production cost, etc., and achieve the effect of low cost, continuous preparation process and low requirements

Active Publication Date: 2020-11-10
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a manufacturing process of a size-controllable helical ceramic spring in order to overcome the defects of the above-mentioned prior art, which overcomes the problems of large material consumption, high production cost and limited range of applicable materials in the existing method. Insufficient, the produced ceramic springs can be used in many fields such as electrode insulation, heat insulation protection, high temperature spring parts, etc.

Method used

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  • Manufacturing process of a spiral ceramic spring
  • Manufacturing process of a spiral ceramic spring
  • Manufacturing process of a spiral ceramic spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Take 100g of YSZ powder with an average particle size of 0.2μm and a yttrium oxide content of 3wt.%, add 150g of analytically pure NMP solution, ultrasonically disperse for 15min, then add 50g of PES polymer, and place in an oil bath at 50°C Stir mechanically for 12 hours at a stirring speed of 300r / min, so that the slurry is fully mixed and uniform. After the slurry is cooled to room temperature, it is placed in a vacuum desiccator for degassing and defoaming, and then stands for 12 hours to obtain a uniform composition. spinning solution;

[0033] (2) Add the spinning solution into the syringe and put it into the syringe pump, and push it to the discharge tank at a flow rate of 7.5L / min. After the liquid level in the discharge tank rises to a stable level, use the receiving tank to receive the outflow slurry. Control the distance between the round hole at the bottom of the discharge tank and the liquid level of the coagulation bath to be 20cm. After entering the c...

Embodiment 2

[0036] (1) Take 40g of alumina powder with an average particle size of 0.05μm, add 80g of analytically pure DMSO solution, ultrasonically disperse for 15min, then add 30g of PES polymer, and mechanically stir in an oil bath at 60°C for 12h at a stirring speed of 200r / min, make the slurry fully mixed evenly. After the slurry is cooled to room temperature, place it in a vacuum dryer to pump air until no bubbles are generated on the liquid surface, and then let it stand for 6 hours to obtain a spinning solution with uniform components;

[0037] (2) Add the spinning solution into the syringe and put it into the syringe pump, and push it to the discharge tank at a flow rate of 10L / min. After the liquid level in the discharge tank rises to a stable level, use the receiving tank to receive the outflow slurry, and control The distance between the round hole at the bottom of the discharge tank and the liquid surface of the coagulation bath is 15cm. After entering the coagulation bath, ...

Embodiment 3

[0040] (1) Take 120g of YSZ powder with an average particle size of 0.5μm and a yttrium oxide content of 5wt.%, add 180g of analytically pure DMAC solution, ultrasonically disperse for 30min, then add 90g of PVDF polymer, and place in an oil bath at 60°C Stir mechanically for 24 hours, and the stirring speed is 400r / min, so that the slurry is fully mixed and uniform. After the slurry is cooled to room temperature, it is placed in a vacuum dryer for degassing and defoaming, and then left to stand for 6 hours to obtain a spinning solution with uniform components;

[0041] (2) Add the spinning solution into the syringe and put it into the syringe pump, push it to the discharge tank at a flow rate of 20L / min, and after the liquid level in the discharge tank rises to a stable level, use the receiving tank to receive the outflow slurry, control The distance between the round hole at the bottom of the discharge tank and the liquid surface of the coagulation bath is 18cm. After enteri...

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Abstract

The invention relates to a manufacturing process of a spiral ceramic spring, including steps of slurry configuration, degassing, phase transformation molding, impregnation, drying and sintering and the like, using a rope coiling effect auxiliary phase transformation method to prepare a spiral ceramic spring. Compared with the prior art, the manufacturing process overcomes disadvantages of high material consumption, high production cost, and limited range of applicable materials in the existing methods. The ceramic spring produced by the invention can be applied to many fields such as electrode insulation, heat insulation protection, high temperature spring parts and the like.

Description

technical field [0001] The invention relates to a manufacturing process of a ceramic spring, in particular to a manufacturing process of a spiral ceramic spring. Background technique [0002] Ceramic springs have the characteristics of high mechanical strength, good mechanical properties, high temperature resistance, corrosion resistance, wear resistance, low electrical conductivity, low thermal conductivity, etc., and have broad application prospects. Ceramic springs can be used as high-temperature components in the aerospace field. Facing the high-temperature environment of supersonic aircraft sealing components, metal springs are prone to oxidation and plastic deformation and quickly fail, while ceramic springs are used because of their stability at high temperatures. Be applicable. Because of its unique electrical properties, ceramic springs can also be used as electrode materials, piezoelectric materials, and microsensor components. In addition, since the helical stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48C04B35/10C04B35/622C04B35/626C04B35/634B28B1/00
CPCB28B1/00C04B35/10C04B35/48C04B35/622C04B35/62635C04B35/6264C04B35/62655C04B35/63436C04B35/63488C04B2235/3225C04B2235/60
Inventor 邢辰郭芳威林剑锋胡励李程刚张醒王振剑赵晓峰肖平
Owner SHANGHAI JIAOTONG UNIV
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