Process for manufacturing metal sheet gaskets coated with elastomer
AssigneeElringKlinger AG
InventorsPeter Schenk, Reinhold Buck
Life of this patent
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Abstract
In a process for manufacturing metal sheet gaskets coated with elastomer, as are often used as cylinder head gaskets or as compressor gaskets in refrigerant circuits, it is proposed that the elastomeric coating be applied to the individual metal sheet in a spray coating process in order to be able to carry out the coating with elastomer in a more cost-efficient manner.
Claims21
Process for manufacturing a metal sheet gasket coated with elastomer, including the step of applying an elastomeric coating substance solely by way of spray coating to sheet metal, said coating substance including a solvent selected from the group consisting of an elastomer-dissolving alcohol, ester, except butyl acetate, ketone, and a solvent mixture comprising at least two of said elastomer-dissolving alcohol, ester, ketone, and an aromatic compound, wherein each said solvent has a boiling point in the range of 100 to 200° C.
Process for manufacturing a metal sheet gasket coated with elastomer, including the steps of punching a metal sheet to have a punched region with a cut edge and an unpunched region prior to coating with an elastomer and then applying an elastomeric coating substance to the cut edge of the punched region and to the unpunched region of the metal sheet solely by way of spray coating, said coating substance including a solvent selected from the group consisting of an elastomer-dissolving alcohol, ester, except butyl acetate, ketone, and a solvent mixture comprising at least two of said elastomer-dissolving alcohol, ester, ketone, and an aromatic compound, wherein each said solvent has a boiling point in the range of 100 to 200 degrees °C.
Process for manufacturing a metal sheet gasket coated with elastomer, including the step of applying an elastomeric coating substance solely by way of spray coating to sheet metal and to a cut edge of the sheet metal, said coating substance including a solvent selected from the group consisting of an elastomer-dissolving alcohol, ester, except butyl acetate, ketone, and a solvent mixture thereof comprising at least two of said elastomer-dissolving alcohol, ester, ketone, and an aromatic compound, wherein each said solvent has a boiling point in the range of 100 to 200° C.
Dependencies are inferred from the claim text.