F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 58/04 (2006.01) E21B 17/00 (2006.01) E21B 41/02 (2006.01) F16B 33/00 (2006.01) F16B 33/06 (2006.01) F16L 58/02 (2006.01) F16L 58/18 (2006.01) E21B 17/042 (2006.01)
Patent
CA 2074132
ABSTRACT OF THE DISCLOSURE A method of producing a protective layer which is effective against corrosion on threads of screw connections of pipes which are used for conveying oil or gas. Before a thread protection device is screwed onto the threaded portions of the pipes, a corrosion-resistant lubricant is applied on the previously cleaned threaded portions. The lubricant used is a highly viscous but transparent oil, so that a visual check of the threaded portions is possible when the pipes are to be screwed together. The oil is selected to be of a type which is mixable with screw greases which are used when the pipes are screwed together.
Krings Reiner
Monser Helmut
Rohden Volker
Fetherstonhaugh & Co.
Krings Reiner
Mannesmann Aktiengesellschaft
Monser Helmut
Rohden Volker
LandOfFree
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