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Table tennis bat bottom plate containing fiber interlayer with surface microcosmic coating and manufacturing method thereof

A table tennis racket and fiber layer technology, used in rackets, sports accessories, etc., can solve the problems of high hardness and elasticity, and achieve the goal of improving the toughness of the bottom plate, improving the uniformity of force, and increasing the optimal hitting area of ​​the bottom plate. Effect

Active Publication Date: 2021-07-09
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to avoid the deficiencies of the prior art, the present invention proposes a table tennis racket bottom plate containing a fiber interlayer with a surface microscopic coating and a manufacturing method thereof, so as to overcome the defects of high hardness and excessive elasticity of the bottom plate containing a carbon fiber layer

Method used

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  • Table tennis bat bottom plate containing fiber interlayer with surface microcosmic coating and manufacturing method thereof
  • Table tennis bat bottom plate containing fiber interlayer with surface microcosmic coating and manufacturing method thereof
  • Table tennis bat bottom plate containing fiber interlayer with surface microcosmic coating and manufacturing method thereof

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Effect test

Embodiment 1

[0035] In embodiment 1, core material adopts the paulownia wood that thickness is 3.5mm, and strength material adopts the Ayousi wood that thickness is 0.8mm, and surface material adopts the Ketuo wood that thickness is 0.5mm; The two-dimensional plain weave cloth made of fiber bundles is used as the fiber interlayer, and the surface of each fiber in the fiber interlayer is covered with a pyrolytic carbon layer with a thickness of 220-250 nanometers, and the thickness of a single layer of fiber interlayer is 0.16mm. The base plate of the table tennis racket obtained in this embodiment meets the standard of the International Table Tennis Federation for the base plate of a table tennis racket used in competitions.

[0036] For microscopic coatings using pyrolytic carbon materials, the fiber layer is placed in a chemical vapor infiltration equipment, and a mixed gas of propylene, natural gas and hydrogen is introduced. The temperature of the inner cavity of the equipment is 600-11...

Embodiment 2

[0037] In embodiment 2, the core material adopts Ayousi wood with a thickness of 4mm, the strength material adopts Ayousi wood with a thickness of 0.7mm, and the face material adopts Limba wood with a thickness of 0.5mm; each bundle contains 1000 carbon fiber sheets A two-dimensional plain weave cloth woven from silk fiber bundles is used as a fiber interlayer, and the surface of each fiber in the fiber interlayer is covered with a boron nitride layer with a thickness of 500-650 nanometers, and the thickness of a single-layer fiber interlayer is 0.18 mm. The base plate of the table tennis racket obtained in this embodiment meets the standard of the International Table Tennis Federation for the base plate of a table tennis racket used in competitions.

[0038] For the microscopic coating using boron nitride material, the fiber layer is placed in the chemical vapor infiltration equipment, and the mixed gas of ammonia, boron chloride and hydrogen is introduced. The temperature of ...

Embodiment 3

[0051] Embodiment 3 and Embodiment 4 are: the strength material layer of Ayousi wood is not used, and the materials containing continuous ceramic fibers are bonded between the core material and the surface material.

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Abstract

The invention relates to a table tennis bat bottom plate containing a fiber interlayer with a surface microcosmic coating and a manufacturing method. The fiber interlayer with the surface microcosmic coating is clamped between wood plate blanks of the table tennis bat bottom plate. The fibers can be made of carbon, silicon carbide, silicon nitride, aluminum oxide, aluminum silicate, mullite and the like; the fiber layer can be at least one of continuous fibers, chopped fibers and whiskers; the surface microcosmic coating is prepared from at least one of pyrolytic carbon, graphitized pyrolytic carbon and boron nitride; and the thickness of the surface microcosmic coating ranges from 50 nano-meters to 1 micrometer. The structure limitation and defects of a multi-layer wood chip gluing bottom plate and a carbon fiber and organic fiber interlayer bottom plate are overcome, and the effects that the optimal hitting area of the bottom plate is remarkably increased, the toughness of the bottom plate is improved, and the hitting hand feeling is improved are achieved.

Description

technical field [0001] The invention belongs to the technical field of table tennis sports equipment, and relates to a table tennis racket bottom plate containing a fiber interlayer with a surface microscopic coating and a manufacturing method. Background technique [0002] Table tennis rackets are mostly composed of three parts: the bottom plate, rubber and sponge. The table tennis bottom plate is an important part of the table tennis racket. The conventional bottom plate structure is several layers of wood veneers, which are made by bonding process. The number, material and thickness of the wood chips used determine the comprehensive performance of the bottom plate, such as ball speed, spin, control, weight and thickness. [0003] In October 2000, the ITTF enabled table tennis balls with a diameter of 40mm (diameter range 39.5-40.5mm) to replace table tennis balls with a diameter of 38mm. In July 2014, the ITTF launched "40+" plastic table tennis balls (diameter range 40....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B59/42A63B60/00A63B102/16
CPCA63B59/42A63B60/00A63B2102/16
Inventor 刘持栋阴甜甜成来飞刘小冲何山
Owner NORTHWESTERN POLYTECHNICAL UNIV
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