Title:
METHOD OF COATING JOINT OF WELDED PIPE WITH WEIGHING MATERIAL
Document Type and Number:
Japanese Patent JPS59105875
Kind Code:
A
Abstract:
A system for coating a welded joint in butt-welded pipes, comprising the following stages: feeding a first component constituted by a mixture of modified polyurethane resins premixed with a high-density inert material of well defined particle size to the hopper of a screw feeder by way of a regulator valve which meters its throughput; conveying said first component in the form of a slurry by means of said screw feeder into a blade mixer where it is carefully mixed with a second component constituted by a liquid hardening catalyst in a suitable mixing proportion by means of a metering pump and by way of a heat exchanger; and finally filling a form surrounding said joint with the catalyzed mixture leaving said blade mixer.
Inventors:
JIYORUJIYO BENEJIINI
ANSONII EDOWAADO JIYON SUTOREN
ANSONII EDOWAADO JIYON SUTOREN
Application Number:
JP21882983A
Publication Date:
June 19, 1984
Filing Date:
November 22, 1983
Export Citation:
Assignee:
SAIPEM SPA
ENU AI SHII SHII LTD
ENU AI SHII SHII LTD
International Classes:
B05D7/24; B29B7/42; B29C70/74; B05D7/14; E02B9/06; E02F5/10; F16L1/038; F16L59/20; (IPC1-7): B05D7/14; B05D7/24; E02D29/10
Attorney, Agent or Firm:
Kimura Masami
Previous Patent: JPS59105874
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