EP 3896190 B1 20240605 - INSTALLATION AND METHOD FOR PRODUCING A METALLIC COATING ON A BOREHOLE WALL
Title (en)
INSTALLATION AND METHOD FOR PRODUCING A METALLIC COATING ON A BOREHOLE WALL
Title (de)
VERFAHREN UND ANLAGE ZUR METALLISCHEN BESCHICHTUNG EINER BOHRUNGSWAND
Title (fr)
PROCÉDÉ ET INSTALLATION DE REVÊTEMENT MÉTALLIQUE D'UNE PAROI D'ALÉSAGE
Publication
Application
Priority
EP 20169797 A 20200416
Abstract (en)
[origin: WO2021209190A1] The invention relates to a method and a system for applying a metal coating to a bore wall of a bore in a workpiece by means of atmospheric plasma spraying, wherein: a coating lance having an anode and a cathode is inserted axially into the bore and is rotated about its longitudinal axis; an arc into which a plasma gas mixture is introduced and ionised is generated between the anode and the cathode; a plasma flow is generated; a coating powder is fed into the plasma flow; and the plasma flow comprising the particles is sprayed onto the bore wall and a coating is formed on the bore wall. According to the invention, the coating lance is inserted into the bore at an axial feed speed and is rotated at a rotational speed of 420 rpm to 520 rpm and, at a volumetric flow rate of plasma gas mixture of 30 l/min to 70 l/min, coating powder is injected at a feed rate of 90 g/min to 130 g/min.
IPC 8 full level
C23C 4/134 (2016.01); B05B 7/22 (2006.01); B05B 13/06 (2006.01); C23C 4/12 (2016.01)
CPC (source: EP US)
B05B 7/22 (2013.01 - EP); B05B 13/0636 (2013.01 - EP); C23C 4/08 (2013.01 - US); C23C 4/12 (2013.01 - EP); C23C 4/134 (2016.01 - EP US); C23C 4/16 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3896190 A1 20211020; EP 3896190 B1 20240605; CN 115003850 A 20220902; US 2023056126 A1 20230223; WO 2021209190 A1 20211021
DOCDB simple family (application)
EP 20169797 A 20200416; CN 202180011888 A 20210304; EP 2021055470 W 20210304; US 202117904363 A 20210304