公开(公告)号：DE19610015A1

公开(公告)日：1997-09-18

申请号：DE19610015

申请日：1996-03-14

Applicant: HOECHST AG

Inventor： KUEHN HEINRICH ,  ESCHER CLAUS DR ,  LANDES KLAUS PROF DR ,  HASLBECK PETER DR ,  GASCHLER OTFRIED DIPL ING ,  MUELLER MARKUS ,  MUNTWYLER PETER

IPC: B05B7/22 ,  B41N1/00 ,  B41N7/04 ,  C23C4/134 ,  F24J2/48 ,  H05H1/42 ,  C23C4/14 ,  B01J21/04 ,  B01J23/70 ,  B21D17/04 ,  B24C1/06 ,  B41N3/00 ,  C23C4/02 ,  C23C4/06 ,  C23C4/10 ,  C23C4/18 ,  F24J3/00

Abstract: In a process for plasma spray coating of a substrate using a spray powder which is melted in the plasma, the powder is supplied into the region of the anode(s) or the neutrode(s) or, between these, into a channel of a plasma spray unit, one or more arcs have a length of 20 mm. or more at least intermittently and the substrate is an endless strip or a large surface of at least 0.005 (pref. at least 0.01, esp. at least 0.05) m size. Pref. the substrate consists of a metal or alloy, a plastics opt. contg. filler, a paper-contg. material, a composite material or a composite body, esp. aluminium (alloy), backed aluminium foil or a plastic (esp. polyester) foil. Pref. the coating comprises a material rich in oxide, silicate, titanate, boride, carbide, nitride, metal, metal alloy and/or inorganic pigment, esp. in aluminium oxide, spinel, titanium boride, Al, Ni (alloy) or Cu (alloy). Also claimed are: (i) a plasma spray coating appts.; and (ii) a plate for a printing machine, comprising a substrate and a plasma sprayed layer.