ROLL AND PRODUCTION METHOD THEREFOR

WIPO Patent Application WO/2017/056519

A1

A roll 10 has a roll body 11 that is provided, at both ends thereof, with support shafts 12, 13; a thermally-sprayed coating 14 that has abrasion-resistance and anti-scratch property and is made to have a surface roughness Ra within a range of 1-15 µm by shot blasting is formed on the surface of the roll body 11 that has been subjected to blasting treatment; the thermally-sprayed coating 14 contains 70-95 mass% of a thermally-sprayed base material a, and 5-30 mass% of nickel powder as a blending material; and the thermally-sprayed base material a contains 10-30 mass% of chromium carbide, and 5-15 mass% of nickel, with the remainder being at least 95 mass% tungsten carbide. A production method according to the present invention includes a first step for subjecting the surface of the roll body 11 to blasting treatment, a second step for thermal-spraying a coating material onto the surface, and a third step for subjecting the surface to shot blasting treatment so as to make the surface roughness Ra fall within a range of 1-15 µm.

WO/2011/074290	METHOD FOR PRODUCING A HEAT-SHIELDING COATING, TURBINE MEMBER PROVIDED WITH SAID HEAT-SHIELDING COATING, AND GAS TURBINE
JPH04210380	DIAMOND GRINDING WHEEL AND MANUFACTURE THEREOF
JP2000282208	SEMICONDUCTOR THIN FILM, FORMATION OF SEMICONDUCTOR FILM AND DEVICE FOR FORMING SEMICONDUCTOR FILM

MORIZONO HIROFUMI (JP)
UMEYAMA YUTO (JP)
YAMAGUCHI YOSHIHIRO (JP)

PCT/JP2016/054701

April 06, 2017

February 18, 2016

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MISHIMA KOSAN CO LTD (JP)

C23C4/04; B21B27/00; B21B39/00; C23C4/18

JP2008069386A	2008-03-27
JPH09301518A	1997-11-25
JP2001049419A	2001-02-20
JPS61250160A	1986-11-07
JP2005105362A	2005-04-21
JPS59126772A	1984-07-21

NAKAMAE Fujio (JP)

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