Title:
非対称的なコーティングを備える分離可能なねじ式接続部
Document Type and Number:
Japanese Patent JP6531176
Kind Code:
B2
Abstract:
A screw joint has a tubular element with a female thread and a tubular element with a male thread, wherein the male thread and the female thread have first contact surfaces that cooperate with each other, and the tubular elements optionally have second contact surfaces adjacent to the female thread and/or the male thread, wherein the first contact surfaces and the optional second contact surfaces each have a coating including a first and a second layer, wherein the first layer is formed as a conversion layer in each case, one of the first contact surfaces that cooperate with each other has a second layer made of ceramic material with a friction reducing effect and the other of the two contact surfaces that cooperate with each other has, as a second layer, a varnish layer with a binding agent made of an organic polymer throughout which solid lubricant particles are distributed.
Inventors:
Shuffer, marx
Winkler, Peter
Leitner, Reinhard
Schalk Hammer, Thomas
Winkler, Peter
Leitner, Reinhard
Schalk Hammer, Thomas
Application Number:
JP2017537304A
Publication Date:
June 12, 2019
Filing Date:
December 29, 2015
Export Citation:
Assignee:
voestalpine Tubulars GmbH & Co KG
International Classes:
F16L15/00; B32B18/00; C09D1/00; C09D5/08; C09D7/40; C09D161/28; C09D167/00; C10M107/02; C10M107/06; C10M107/38; C10M107/44; C10M145/22; C10M149/20; F16L58/10
Domestic Patent References:
| JP2008527249A | ||||
| JP2014505840A | ||||
| JP6109173A |
Foreign References:
| WO2009072486A1 | ||||
| US20090033087 | ||||
| US20030066641 |
Attorney, Agent or Firm:
Asamura patent office