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Method for manufacturing micro-spring

A technology of micro-spring and oxide sol, which is applied in the direction of spring, micro-structure technology, micro-structure device, etc., can solve the problems of long cycle, complex processing technology, large equipment investment, etc.

Inactive Publication Date: 2012-06-27
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these two methods get rid of the restrictions on processing materials and can prepare three-dimensional springs of different materials, the production process requires the production of supporting molds, precise numerical control positioning devices and expensive laser light sources, and there are still complex processing techniques and long cycles. Large investment in equipment and other issues, which is not conducive to mass production

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  • Method for manufacturing micro-spring
  • Method for manufacturing micro-spring
  • Method for manufacturing micro-spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] See figure 1 The fabrication process of the titania microspring is shown.

[0029] (1) Clean the carbon fibers with a diameter of 5 microns with pure water, acetone, and ethanol in sequence, and blow them dry with nitrogen; then fix the cleaned carbon fibers on a base with a length of 5 cm and a height of 2 cm, on a U-shaped bracket made of stainless steel alloy;

[0030] (2) Dissolve 1 gram of P123 (molecular weight: 5800) in 10 mL of absolute ethanol, stir at room temperature to completely dissolve P123 to obtain a P123 ethanol solution, adjust the pH value of the P123 solution to 2.6 with 1M hydrochloric acid, and then add 6.2 grams of Tetrabutyl titanate was stirred for 30 minutes to form a uniform and stable titanium dioxide sol with a quality of 18.4 grams;

[0031] (3) The U-shaped support fixed with carbon fiber in step (1) is immersed in the titanium dioxide sol obtained in step (2), and the U-shaped support fixed with carbon fiber is pulled out from the tit...

Embodiment 2

[0034] (1) Clean the carbon fibers with a diameter of 5 microns with pure water, acetone, and ethanol in sequence, and blow them dry with nitrogen; then fix the cleaned carbon fibers on a base with a length of 5 cm and a height of 2 cm, on a U-shaped bracket made of stainless steel alloy;

[0035] (2) Dissolve 1 gram of P123 (molecular weight of 5800) in 10 mL of isopropanol, stir at room temperature to completely dissolve P123 to obtain a P123 solution, adjust the pH of the P123 solution to 2.6 with 1M hydrochloric acid, and then add 5.1 grams of isopropanol Titanium propoxide was stirred for 30 minutes to form a uniform and stable titania sol, and its quality was 17.3 grams;

[0036] (3) The U-shaped support fixed with carbon fiber in step (1) is immersed in the titanium dioxide sol obtained in step (2), and the U-shaped support fixed with carbon fiber is pulled out from the titanium dioxide sol by pulling method, and dried for 12 After ~24 hours, a titanium dioxide gel spi...

Embodiment 3

[0039] (1) Clean the glass fibers with a diameter of 5 microns with pure water, acetone and ethanol in turn, and dry them with nitrogen; then fix the cleaned glass fibers on a base with a length of 5 cm and a height of 2 cm, on a U-shaped bracket made of stainless steel alloy;

[0040] (2) Dissolve 1 gram of P123 (molecular weight: 5800) in 10 mL of absolute ethanol, stir at room temperature to completely dissolve P123 to obtain a P123 ethanol solution, adjust the pH value of the P123 solution to 2.6 with 1M hydrochloric acid, and then add 6.2 grams of Tetrabutyl titanate was stirred for 30 minutes to form a uniform and stable titanium dioxide sol with a quality of 18.4 grams;

[0041] (3) Immerse the U-shaped bracket fixed with glass fiber in step (1) into the titanium dioxide sol obtained in step (2), and pull the U-shaped bracket fixed with glass fiber out of the titanium dioxide sol by pulling method, Dry for 12 to 24 hours, and prepare a titanium dioxide gel spindle with...

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Abstract

The invention relates to a method for manufacturing a micro-spring by using a fracture control method. According to the method disclosed by the invention, the micro-spring is manufactured on the basis of controlling three-dimensional fracture. The method comprises the following steps of: coating a layer of oxide sol on a hard fiber material of which the diameter is of a micron scale; forming a core-shell-structure spindle knot taking the hard fiber material as a core and the oxide sol as a shell by fracturing a liquid membrane of the oxide sol; and forming the core-shell-structure spindle knot taking the oxide sol as the shell when a solvent in an oxide sol shell layer of the spindle knot is volatilized. Because of a special core-shell structure and heterogeneous core-shell components of the spindle knot, the spindle knot not only has a weak core-shell interface, but also has different thermal expansion coefficients. When the spindle knot is subjected to heating treatment, a core-shell material with different thermal expansion coefficients generates a heat stress. Under the action of the heat stress, the weak interface of the spindle knot cracks, and then the regular micro-spring is formed on the shell layer.

Description

technical field [0001] The invention belongs to the technical fields of chemical engineering, functional materials, micron and nanometer processing, and in particular relates to a method for preparing microsprings by a fracture control method. Background technique [0002] With the development of technology, the miniaturization of devices is an important way to realize their multi-function and integration. , high precision, fast response and other aspects show excellent performance, so it has broad application prospects in precision instruments, biomedical and national defense technology and other fields. With the increasing demand for micro-devices, there is an urgent need for mature processing technology to manufacture micro-devices in large quantities at low cost. [0003] As one of the most important driving devices in micro devices, the processing technology of micro springs has attracted much attention. At present, the traditional microspring production at home and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C99/00F16F1/00
Inventor 王莉赵勇江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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