A THERMAL SPRAYING PREPROCESSING METHOD AND A CYLINDER BLOCK OF AN ENGINE SO PREPROCESSED

WIPO Patent Application WO2006040746

A3

The adhesiveness of a thermal spray coating and a cylinder internal surface is improved by forming a sufficient roughened surface on an internal surface. A processing roller is installed on the main shaft of a processing device via a pressurizing mechanism. An uneven surface is provided on the external periphery of the processing roller. By pressing the processing roller against the internal surface while the roller rotates and moves, a fine unevenness that corresponds to the unevenness of the roller is formed on the cylinder internal surface. A thermal spray coating is formed on the internal surface where the inner surface has been roughened by forming the above-mentioned unevenness.

SEKIKAWA TAKASHI (JP)
IIZUMI MASAHIKO (JP)
OGINO TAKASHI (JP)
NISHIMURA KIMIO (JP)
SHIOTANI EIJI (JP)
TAKAHASHI HIDEO (JP)
NISSAN NORTH AMERICA INC (US)

PCT/IB2005/053386

June 29, 2006

October 14, 2005

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NISSAN MOTOR LTD (JP)
SEKIKAWA TAKASHI (JP)
IIZUMI MASAHIKO (JP)
OGINO TAKASHI (JP)
NISHIMURA KIMIO (JP)
SHIOTANI EIJI (JP)
TAKAHASHI HIDEO (JP)
NISSAN NORTH AMERICA INC (US)

C23C4/02; B23P9/02

US5622753A	1997-04-22
US2314902A	1943-03-30
US20040109911A1	2004-06-10
DE19910578A1	2000-06-21
GB2177120A	1987-01-14

PATENT ABSTRACTS OF JAPAN vol. 009, no. 078 (C - 274) 6 April 1985 (1985-04-06)
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)

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