FIELD: machine building.
SUBSTANCE: group of inventions relates to pipe thread joint. Thread joint contains union with male wedge-type thread and coupling with appropriate female wedge-type thread, on one of them or on both the solid lubricant is permanently secured, it contains the first uniform layer of dry anticorrosion coating out of epoxy resin with zinc particles, and second uniform layer of dry lubricant covering the first uniform layer.
EFFECT: invention reduces clearances in the assembled joint and increases lubricant resistance against applied increased torque.
6 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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