Method and system for producing coated steel components
AssigneeMagna International Inc.
InventorsRalph Domnick, Mathias Belzner, Edward Schleichert
Life of this patent
Estimating the term…
Abstract
A coated steel component is provided. The coated steel component includes a substrate composed of a steel sheet which can be supplied to a hot-forming process. The coated steel component also possesses a non-metallic coating on the basis of silicon, in a layered structure. The layered structure includes three functional layers having the composition SiOxNyCz, wherein x lies between 30 and 70%, y lies between 0 and 35%, and z lies between 0 and 50%.
Claims12
A coated steel component, comprising:
- a steel substrate;
- and
- a non-metallic, silicon-based layered coating structure, comprising:
- a first functional layer formed directly on the steel substrate;
- a second functional layer formed directly on the first functional layer;
- and
- a third functional layer formed directly on the second functional layer,
- wherein each functional layer comprises 30 to 70% (by atomic %) O, 0 to 35% (by atomic %) N, and 0 to 50% (by atomic %) C,
- wherein the composition of the second functional layer is different than the composition of both the first functional layer and the third functional layer,
- the second functional layer includes more nitrogen than the first functional layer,
- the second functional layer includes less oxygen than the first functional layer, and
- the second functional layer includes a gradual reduction of oxygen from the first functional layer to the third functional layer.
A coated steel component, comprising:
- a steel substrate;
- and
- a non-metallic, silicon-based layered coating structure, comprising:
- a first functional layer formed directly on the steel substrate;
- a second functional layer formed directly on the first functional layer;
- a third functional layer formed directly on the second functional layer;
- each functional layer comprising 30 to 70% (by atomic %) 0, 0 to 35% (by atomic %) N, and 0 to 50% (by atomic %) C;
- and
- wherein the composition of the second functional layer is different than the composition of both the first functional layer and the third functional layer, and wherein the composition of the second functional layer is 34% N (by atomic %).
A coated steel component wherein a substrate composed of steel sheet can be supplied to a hot-forming process and possesses a non-metallic coating on the basis of silicon, in a layered structure, wherein three functional layers are present, each functional layer comprises 30 to 70% (by atomic %) O, 0 to 35% (by atomic %) N, and 0 to 50% (by atomic %) C, the layers include a diffusion layer, and wherein a nitrogen content of 34% is present in the diffusion barrier.
Dependencies are inferred from the claim text.