IP Library › Granted Patent US 9,623,468
Granted Patent B2
US 9,623,468 · App. 14/442,531 · Granted Apr 18, 2017

Coating for high temperature applications with tribological stress

Inventors: Matthias Lukas Sobiech (Wasserburg, DE); Jurgen Ramm (Maienfeld, CH)
Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKON
B21D22/02C01G39/006C08K3/28C08K3/38C09D1/00C10M103/04C10M103/06C08K2003/382C10M2201/053C10M2201/061C10M2201/062C10M2201/0613C10N2210/01C10N2210/04C10N2210/05C10N2210/06C10N2230/06C10N2230/08C10N2230/14C10N2240/10C10N2240/14C10N2240/40C10N2240/401C10N2240/402C10N2240/404C10N2240/407C10N2240/58C10N2250/14C10N2250/141
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Quick Facts
Patent No.
US 9,623,468
App. No.
14/442,531
Granted
Apr 18, 2017
Kind
B2
Abstract

The present invention relates to a coating for high-temperature applications with tribological stress. The coating comprises a multi-layer system and a top lubrication layer, the top lubricant layer containing, as a main component, molybdenum.

Claims (15)

1. Coating with a top smear layer with essentially the composition Mo—Si—B and/or Mo—Si—B—N or Mo—Si—B—O—N.

2. Coating according to claim 1 , characterized in that the architecture of the top smear layer has a mono-layer or a bi-layer or a multi-layer or a nano-laminated configuration.

3. Coating according to claim 2 , characterized in that the architecture of the top smear layer has a bi-layer or a multi-layer or a nano-laminated configuration and in that the microstructure can be modified by means of the configuration.

4. Coating according to claim 2 , characterized in that the architecture of the top smear layer has a bi-layer or a multi-layer or a nano-laminated configuration and in that the chemistry can be modified by means of the configuration.

5. Coating according to claim 1 , characterized in that the top smear layer contains at least 95 at % molybdenum.

6. Coating according to claim 1 , characterized in that the layer thickness of the top smear layer is between 0.25 μm and 1.5 μm.

7. Apparatus comprising a substrate at least partly covered with a coating according to claim 1 .

8. Apparatus according to claim 7 , characterized in that the substrate is a tool.

9. Apparatus according to claim 8 , characterized in that the tool is a press hardening forming tool.

10. Apparatus according to claim 9 , characterized in that below the top smear layer of the coating, at least one layer of titanium aluminum nitride is provided.

11. Apparatus according to claim 10 , characterized in that the top smear layer has essentially a chemical composition Mo 0.95 Si 0.03 B 0.02 and/or the titanium aluminum layer has essentially a chemical composition Ti 0.5 Al 0.5 N.

12. A method of using an apparatus according to claim 9 comprising direct press hardening of:

Al—Si coated 22MnB5 USSH sheets, or

uncoated 22MnB5 USSH sheets, or

ultra-high-strength steels of the type 22MnB5 that are coated with Zn-based layers.

Assignments (2)
CHANGE OF NAME Recorded Jan 17, 2017
From: OERLIKON SURFACE SOLUTIONS AG, TRUBBACH
To: OERLIKON SURFACE SOLUTIONS AG, PFAFFIKON
Reel/Frame 040982/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 2, 2015
From: SOBIECH, MATTHIAS LUKAS; RAMM, JURGEN
To: OERLIKON SURFACE SOLUTIONS AG, TRUBBACH
Reel/Frame 036710/0112 →
Priority Claims (2)
DE 10 2012 022 114 · Nov 13, 2012 · national
EP 12008340 · Dec 14, 2012 · regional
Continuity (1)
Related Publication 20160067755A1 · Mar 10, 2016