Method for forming rustproof film on PC strand and PC strand

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United States of America Patent

PATENT NO 8882944
SERIAL NO

13913583

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Abstract

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In a method for forming a rustproof film on a PC strand, the thickness of the resin film is set to 200±80 μm, the pre-heating is performed within a temperature range from 60 to 150° C. to prevent an occurrence of a cob-webbing phenomenon as a result of melting of the synthetic resin powder coating material and the post-heating is performed within a range from 150 to 250° C. in order to uniformize the thickness of the coats adhered to the outer peripheral surfaces of the core wire and the surrounding wires, and the temperature of the pre-heating is set to be lower than the temperature of the post-heating, and the synthetic resin powder coating material including particles having diameters in a range from 0.1 to 250 μm is used, and the line speed in the series of steps is set to 5 to 10 m/min.

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Patent Owner(s)

Patent OwnerAddress
KUROSAWA CONSTRUCTION CO LTDTOKYO 182-0003

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirai, Kei Tokyo, JP 10 9
Kurosawa, Ryohei Tokyo, JP 8 47
Matsubara, Naoki Tokyo, JP 37 456

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