Coating processes – Solid particles or fibers applied – Interior or hollow article coating
Patent
1974-05-16
1976-09-21
Smith, Ronald H.
Coating processes
Solid particles or fibers applied
Interior or hollow article coating
118317, 118318, 118DIG10, 427182, 427183, 427195, 427203, 427231, 427233, 427238, 427239, B05D 722, B05D 124
Patent
active
039820505
ABSTRACT:
This invention relates to a method for coating inner faces of metal pipes of a small diameter which comprises feeding a stream of a powdery resin at a rate of 2 to 10 m/sec into a metal pipe of a small diameter preheated at a temperature higher by 20.degree. to 70.degree.C. than the melting or softening point of said powdery resin so that the concentration of said powdery resin or a mixture of said powdery resin and a carrier is 5 to 40% by volume.
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Kato Haruhiro
Tanabe Hiroyuki
Toyoda Tsunehiko
Beck Shrive P.
Dai Nippon Co., Ltd.
Smith Ronald H.
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