FIELD: machine building.
SUBSTANCE: pipe screw joint consists of elements with inner and outer thread with their contact surfaces provided with thin coating tightly adhered to the base, said coating including solid-body matrix including dispersion of particles of one of the components: solid lubricant, corrosion inhibitor and surfactant, Solid-body matrix comprises at least one thermoset polymer and structure-forming agent. Element coating solid-body matrix with outer or inner thread structure-forming agent contains compounds of aromatic series while that of the other element contains aliphatic series compounds as structure-forming agent.
EFFECT: reliable joint under various operating conditions, higher wear resistance, high adhesion and low friction properties.
4 cl
| Title | Year | Author | Number |
|---|---|---|---|
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RU2451861C2 |
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|
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| THREADED JOINT FOR PIPES OR TUBES AND METHOD OF MAKING THREADED JOINT FOR PIPES OR TUBES | 2018 |
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RU2729482C1 |
| THREADED JOINT WITH DRY LUBRICATING COATING | 2017 |
|
RU2671759C1 |
| THREADED JOINT FOR STEEL PIPES | 2006 |
|
RU2349825C1 |
