EP 2859133 A1 20150415 - COLD GAS SPRAYING METHOD USING A CARRIER GAS
Title (en)
COLD GAS SPRAYING METHOD USING A CARRIER GAS
Title (de)
VERFAHREN ZUM KALTGASSPRITZEN MIT EINEM TRÄGERGAS
Title (fr)
PROCÉDÉ DE PROJECTION PAR GAZ FROID AVEC UN GAZ PORTEUR
Publication
Application
Priority
- DE 102012212682 A 20120719
- EP 2013064156 W 20130704
Abstract (en)
[origin: WO2014012797A1] The invention relates to a cold gas spraying method. In said method, particles are accelerated onto a substrate (18) using a cold gas stream (17) and remain adhered to said substrate. According to the invention, forming gas 95/5 with a nitrogen content of 95 mol.% and a hydrogen content of 5 mol.% is used as the carrier gas for the cold gas stream (17). Using said carrier gas, a high gas speed can be advantageously achieved in the cold gas stream (17), at any rate a higher speed than with air or nitrogen, the conventional gases for the carrier gas. The use of helium can also be advantageously omitted for reasons of cost. In addition, the mixture ratio of the forming gas advantageously allows the forming gas to be used without separate safety precautions which would be necessary if hydrogen were selected as the carrier gas without the addition of other gases. According to the invention, gas speeds of over 1400 m/s can be advantageously achieved in the cold gas stream (17) using the forming gas, thus exceeding the achievable speeds using air or nitrogen.
IPC 8 full level
C23C 24/08 (2006.01); C23C 24/10 (2006.01)
CPC (source: EP)
C23C 24/04 (2013.01)
Citation (search report)
See references of WO 2014012797A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014012797 A1 20140123; DE 102012212682 A1 20140123; EP 2859133 A1 20150415; EP 2859133 B1 20180103
DOCDB simple family (application)
EP 2013064156 W 20130704; DE 102012212682 A 20120719; EP 13735004 A 20130704