Manufacturing process of helical wire type ceramic spring

A manufacturing process and helical technology, which is applied to the manufacturing process of ceramic springs, can solve the problems of large material consumption, high production cost, limited material range, etc., and achieve the effects of continuous preparation process, low requirements and low cost.

Active Publication Date: 2017-04-26
SHANGHAI JIAO TONG 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 helical wire type ceramic spring
  • Manufacturing process of helical wire type ceramic spring
  • Manufacturing process of helical wire type 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 3wt.% yttrium oxide content, add 150g of analytically pure NMP solution, ultrasonically disperse for 15min, then add 50g of PES polymer, and place it in an oil bath at 50℃ 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 dryer for air extraction and defoaming, and then left for 12 hours to obtain a uniform composition Spinning solution

[0033] (2) Put the spinning solution into the syringe and load 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 surface of the coagulation bath to be 20cm. After the slurry enters the coagul...

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 for 12h in an oil bath at 60°C at a stirring speed of 200r / min, make the slurry fully mixed and uniform. After the slurry is cooled to room temperature, place it in a vacuum dryer to pump air until there are no bubbles on the liquid surface, and then stand for 6 hours to obtain a spinning solution with uniform composition;

[0037] (2) Put the spinning solution into the syringe and load 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 discharging tank and the surface of the coagulation bath is 15cm. After the slurry enters the coagulation bath, it s...

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 it in an oil bath at 60℃ It is mechanically stirred 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, place it in a vacuum dryer for degassing, and then stand for 6 hours to obtain a spinning solution with uniform composition;

[0041] (2) Put the spinning solution into the syringe and load it into the syringe pump, and push it to the discharge tank at a flow rate of 20L / 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 discharging tank and the surface of the coagulation bath is 18cm. After the slurry enters the co...

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Abstract

The invention relates to a manufacturing process of a helical wire type ceramic spring, and the process is as follows: slurry configuration, degassing, phase transformation molding, impregnation, drying, sintering and other steps, and the helical wire type ceramic spring can be prepared by a rope coiling effect-auxiliary phase transformation method. Compared with the prior art, the manufacturing process overcomes the shortcomings of high material consumption, high production cost and limited material applicable range of methods in the prior art, and the produced ceramic spring can be used for electrode insulation, heat insulation protection, high temperature spring parts and other various fields.

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 a wide range of application prospects. Ceramic springs can be used as high-temperature components in the aerospace field. Facing the high-temperature environment of supersonic aircraft sealing elements, metal springs are prone to oxidation and plastic deformation and quickly fail, while ceramic springs are due to 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 micro sensor components. In addition, since the spiral structure c...

Claims

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Application Information

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Patent Type & Authority Applications(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 JIAO TONG UNIV
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