Anti-wear sheet, production method for the same, and anti-wear-sheet application method

Patent metadata

Field	Value
Publication number	US-10213996-B2
Application number	US-201415103222-A
Country	US
Kind code	B2
Filing date	Dec 11, 2014
Priority date	Dec 12, 2013
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

An anti-wear sheet for improving anti-wear performance of an object to be protected includes: a release film; a resin layer disposed on the release film and including photo-curable resin and hard particles supported by the photo-curable resin; and a light-shielding film disposed on an opposite side of the resin layer from the release film.

First claim

The invention claimed is:

1. An anti-wear sheet for improving anti-wear performance of an object to be protected, comprising:
a release film;
a resin layer disposed on the release film and including photo-curable resin and hard particles supported by the photo-curable resin; and
a light-shielding film disposed on an opposite side of the resin layer from the release film; and
a shape-maintaining base material embedded in the resin layer and disposed on a side adjacent to the release film within the resin layer,
wherein the resin layer includes:
a first region defined between the light-shielding film and the shape-maintaining base material and in which the shape-maintaining base material is not disposed; and
a second region defined between the first region and the release film and in which the shape-maintaining base material is embedded, and

wherein the photo-curable resin in the first region is the same as the photo-curable resin in the second region.

2. The anti-wear sheet according to claim 1 , wherein a ratio by weight of the hard particles to the photo-curable resin is from 1 to 6.

3. The anti-wear sheet according to claim 1 , wherein the resin layer has a thickness of from 1 mm to 5 mm.

4. The anti-wear sheet according to claim 1 , wherein the photo-curable resin comprises vinyl ester resin.

5. The anti-wear sheet according to claim 1 , wherein the hard particles include ceramic powder.

6. The anti-wear sheet according to claim 1 ,
wherein the shape-maintaining material is displaced to the side adjacent to the release film within the resin layer.

7. The anti-wear sheet according to claim 1 ,
wherein, in a thickness direction of the anti-wear sheet, a first distance between the shape-maintaining material and the light-shielding film is greater than a second distance between the shape-maintaining material and the release film.

8. A method of applying the anti-wear sheet according to claim 1 to an object to be protected, the method comprising:
a release-film removing step of removing the release film from the anti-wear sheet;
an anti-wear sheet attaching step of attaching the anti-wear sheet from which the release film is removed to a protection surface of the object to be protected;
a light-shielding film removing step of removing the light-shielding film from the anti-wear sheet attached to the object to be protected; and
a curing step of curing the resin layer by irradiating the resin layer exposed by removal of the light-shielding film with light.

9. A wind turbine blade, a rotary blade of an airplane, a fixed wing of an airplane or a rotary blade of an axial fan, comprising a surface covered with the anti-wear sheet according to claim 1 .

Assignees

• Mitsubishi Heavy Ind Ltd
• Fuji Resin Co Ltd

Inventors

• Shindo Kentaro
• Kuroiwa Takao
• Gensui Hidehiko
• Yamaguchi Manabu

Classifications

• F04D29/181

  Axial flow rotors (F04D29/185 take precedence) · CPC title

• B32B27/20 Primary

  using fillers, pigments, thixotroping agents · CPC title

• B64C3/00

  Wings (ornithopter wings B64C33/02) · CPC title

• B32B2571/00

  Protective equipment · CPC title

• F04D29/38

  Blades {(for axial flow compressors F04D29/324)} · CPC title