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US 11,312,212 B2Granted
Panel for vehicle comprising a coated steel sheet locally reinforced
AssigneeArcelorMittal
InventorsLaurence Dosdat, Matthieu Amblard
Life of this patent
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Abstract
The present invention provides a panel for a vehicle including a coated steel sheet locally reinforced. A method for preparing the panel and the use of the panel are also provided.
Claims36
A panel for a vehicle comprising:
- a steel sheet having an outer face and an inner face;
- at least the inner face being coated with a coating the coating consisting of
- from 3.5 to 6.0% by weight of aluminum,
- from 2.3 to 5.0% by weight of magnesium,
- optionally at least one additional element chosen from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, a content by weight of each additional element being inferior to 0.3% by weight, and
- a balance of the coating being zinc and optionally impurities;
- and
- at least one patch bound to the coated inner face locally reinforcing the sheet;
- the patch including a resin layer contacting the coating of the coated inner face and an inorganic material including glass fiber or carbon fiber to locally reinforce the sheet;
- the panel being a dash panel;
- an interior door panel, an exterior door panel, a roof panel, a wheel arch, a vehicle floor, an interior hood panel, or an exterior hood panel of the vehicle;
- wherein the outer face and inner face further comprise a phosphate layer and an e-coating layer, wherein on the inner face:
- the phosphate layer and e-coating layer are around the at least one patch, the phosphate layer and e-coating layer are not between the coated inner face and the at least one patch, and the phosphate layer and e-coating layer are not over the at least one patch.
10 more elements
A method for preparing a panel for a vehicle comprising the following steps:
- A) providing a steel sheet having at least an inner face coated with a coating consisting of:
- from 3.5 to 6.0% by weight of aluminum, from 2.3 to 5.0% by weight of magnesium, and optionally at least one additional element chosen from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, a content by weight of each additional element being inferior to 0.3% by weight, a balance of the coating being zinc and optionally impurities;
- B) applying at least one patch onto the coated inner face of the steel sheet obtained from step A);
- and
- C) stamping, the stamping being before or after step B);
- D) applying a phosphate layer around the at least one patch, wherein the phosphate layer is not between the coated inner face and the at least one patch and the phosphate layer is not over the at least one patch;
- E) applying an e-coating over the phosphate layer, wherein the e-coating layer is not between the coated inner face and the at least one patch and the e-coating layer is not over the at least one patch;
- the patch including a resin layer contacting the coating of the coated inner face and an inorganic material including glass fiber or carbon fiber to locally reinforce the sheet;
- the panel being a dash panel, an interior door panel, an exterior door panel, a roof panel, a wheel arch, a vehicle floor, an interior hood panel, or an exterior hood panel of the vehicle.
6 more elements
A panel for vehicle comprising:
- a steel sheet having an outer face and an inner face;
- at least the inner face being coated with a coating consisting of from 3.5 to 3.9% by weight of aluminum, from 2.3 to 3.3% by weight of magnesium, and optionally at least one additional element chosen from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, a content by weight of each additional element being inferior to 0.3% by weight, a balance of the coating being zinc and optionally impurities;
- at least one patch bound to the coated inner face locally reinforcing the steel sheet, the patch comprising a resin layer and an inorganic material layer, the resin layer being in contact with the coating of the inner face and the resin layer being an epoxy-rubber based material and wherein the outer face and the inner face further comprise a phosphate layer and an electrophoretic coating layer around the patch, wherein the phosphate layer and electrophoretic coating layer are not between the coated inner face and the at least one patch, and the phosphate layer and electrophoretic coating layer are not over the at least one patch.
A method for preparing a panel for vehicle comprising the following steps:
- A) providing a steel sheet having an inner face coated with a coating consisting of from 3.5 to 6.0% by weight of aluminum, from 2.3 to 5.0% by weight of magnesium, and optionally at least one additional element chosen from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, a content by weight of each additional element being inferior to 0.3% by weight, a balance being zinc and optionally impurities;
- B) applying at least one patch onto the coated steel sheet obtained from step A);
- C) stamping, the stamping being before or after step B);
- D) applying a phosphate layer around the at least one patch, wherein the phosphate layer is not between the coated inner face and the at least one patch and the phosphate layer is not over the at least one patch;
- E) applying an e-coating over the phosphate layer, wherein the e-coating layer is not between the coated inner face and the at least one patch and the e-coating layer is not over the at least one patch.
2 more elements
Dependencies are inferred from the claim text.