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Preparation method of graphene ice skate bracket

A graphene sheet and graphene dispersion technology, which is applied in the direction of skates, skating parts, sports accessories, etc., can solve the problem of poor mechanical properties such as toughness, hardness, and bending resistance, low structural precision, and short service life, etc. problem, to achieve high sports performance, improve mechanical performance, and improve performance

Active Publication Date: 2020-06-12
北京石墨烯技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing skate brackets are usually made of carbon steel and stainless steel, with low structural precision, poor mechanical properties such as toughness, hardness, and bending resistance, etc., resulting in short service life and poor performance.

Method used

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  • Preparation method of graphene ice skate bracket
  • Preparation method of graphene ice skate bracket
  • Preparation method of graphene ice skate bracket

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] The embodiment of the present invention also provides a preparation method of the skate holder 20, comprising:

[0042] S10, provide multiple steel plates;

[0043] S20, providing a graphene dispersion liquid, comprising a graphene sheet dispersant and a graphene sheet dispersed in the dispersion liquid;

[0044] S30, stacking the steel plates and the graphene dispersion alternately, so that the graphene dispersion is sandwiched between two adjacent steel plates to form a sandwich structure, the uppermost layer and the lowermost layer of the sandwich structure is the steel plate;

[0045] S40, performing pressurized pretreatment on the sandwich structure;

[0046] S50, sintering the sandwich structure after the pressure pretreatment at 900°C to 1100°C to form a graphene steel composite sheet; and

[0047] S60, processing the graphene steel composite sheet into a predetermined shape of the skate bracket 20 .

[0048] In the preparation of the skate bracket 20 of the ...

Embodiment 1

[0062] A steel plate with a thickness of 2-10 mm is rolled to a thickness of 0.4 mm, and subjected to stress relief annealing at 650-700° C., wherein the carbon content of the steel plate used is 0.5% carbon steel.

[0063] The annealed steel plate is mechanically ground to a thickness of 0.3mm, and the roughness is at Ra0.8.

[0064] Electrolytic polishing was carried out on the steel plate after mechanical grinding, the polishing temperature was 70°C, and the current density was 70A·dm -2 , electrolysis time 6min. The electrolyte composition is phosphoric acid 650ml / L, sulfuric acid 150ml / L, water 150ml / L, chromium trioxide 50g / L. After electropolishing, the steel plates were rinsed with deionized water.

[0065] The mixed solution of graphene sheets, polyvinylpyrrolidone, and dimethylformamide was ultrasonicated for 80 minutes to obtain a graphene dispersion. The concentration of the graphene sheet in the graphene dispersion liquid is 7 mg / L, the diameter of the graphene...

Embodiment 2

[0071] Example 2 is basically the same as Example 1, except that the graphene dispersion is spin-coated or screen-printed with a thickness of 5 μm.

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Abstract

The invention discloses an ice skate blade support. The ice skate blade support comprises a graphene steel composite sheet; the graphene steel composite sheet comprises steel layers and graphene layers which are alternately arranged in a stacked mode, the uppermost layer and the lowermost layer of the graphene steel composite sheet are steel layers, every two adjacent steel layers are spaced through one graphene layer, and the stacking direction is basically perpendicular to the length direction of the ice skate blade support. The invention further discloses a preparation method of the ice skate blade support. The preparation method comprises the following steps: providing a plurality of steel plates; providing a graphene dispersion liquid; stacking the steel plates and the graphene dispersion liquid alternately, so that the graphene dispersion liquid is clamped between every two adjacent steel plates to form a sandwich structure, and the uppermost layer and the lowermost layer of thesandwich structure are the steel plates; carrying out pressurization pretreatment on the sandwich structure; sintering the sandwich structure subjected to pressurization pretreatment at the temperature of 900-1100 DEG C to form the graphene steel composite sheet; and processing the graphene steel composite sheet into a predetermined shape of the ice skate blade support. The invention further discloses ice skates.

Description

technical field [0001] The invention relates to the field of special tools, in particular to a method for preparing a graphene skate bracket. Background technique [0002] Ice skating is becoming more and more popular. Ice skates are the most important equipment for skating. The accuracy, performance, weight and reliability of the entire ice skate equipment play a huge role in skating. Speed ​​skating shoes are generally composed of three parts: the skate blade, the blade tube and the skates. The skate blade is in direct contact with the ice surface, and the blade tube is connected to the blade and the skate. and performance impact is huge. [0003] However, the existing skate brackets are usually made of carbon steel and stainless steel, with low structural precision, poor mechanical properties such as toughness, hardness, and bending resistance, etc., resulting in short service life and poor performance. . Contents of the invention [0004] Based on this, it is necess...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A63C1/42A63C3/04
CPCA63C1/42A63C3/04
Inventor 李佳惠曹振李炯利张海平李佳佳王旭东
Owner 北京石墨烯技术研究院有限公司
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