Method for producing an enameled steel component, enameled steel component, and use thereof

Abstract

In a method for producing an enameled steel component, a steel component is coated with an adhesion promoter layer which comprises a bonding metal or a bonding metal oxide or a salt thereof, and a binder, and the coated steel component is enameled.

1 - 15 . (canceled) 
     
     
         16 . A method for producing an enameled steel component, the method comprising:
 coating a steel component with an adhesion promoter layer which comprises a bonding metal or a bonding metal oxide or a salt thereof, and a binder; and   enameling the coated steel component.   
     
     
         17 . The method of  claim 16 , wherein the adhesion promoter layer is a sol-gel based system. 
     
     
         18 . The method of  claim 16 , wherein the bonding metal is selected from a group comprising nickel, cobalt, copper, tin, iron, molybdenum or arsenic. 
     
     
         19 . The method of  claim 16 , wherein the bonding metal is selected from a group comprising nickel, copper, iron or molybdenum. 
     
     
         20 . The method of  claim 16 , wherein the bonding metal is present in elemental form, as an oxide or as a salt thereof. 
     
     
         21 . The method of  claim 16 , wherein the binder is an inorganic binder. 
     
     
         22 . The method of  claim 19 , wherein the inorganic binder is an oxide-based binder. 
     
     
         23 . The method of  claim 19 , wherein the oxide-based binder is an aluminum oxide-based binder, titanium oxide-based binder or silicate-based binder. 
     
     
         24 . The method of  claim 16 , wherein the binder is an organic binder which is thermally decomposed when the coated steel component is enameled. 
     
     
         25 . The method of  claim 24 , wherein the binder is a polymer-based binder. 
     
     
         26 . The method of  claim 25 , wherein the polymer-based binder is an epoxy-based binder, acrylate-based binder such as poly(meth)acrylate binder, polyester-based binder, polyurethane-based binder, polycarbonate-based binder, gum-based binder such as gum arabic binders, or any combination thereof. 
     
     
         27 . The method of  claim 16 , wherein the steel component is coated via a wet coating process, with the adhesion promoter layer being applied in a form of an aqueous solution. 
     
     
         28 . The method of  claim 26 , wherein the wet coating process is a process selected from a group comprising a dipping process, atomizing process or spraying process. 
     
     
         29 . The method of  claim 27 , wherein the aqueous solution comprises a solvent which comprises water. 
     
     
         30 . The method of  claim 27 , further comprising drying the coated steel component before the coated steel component is enameled. 
     
     
         31 . The method of  claim 16 , wherein the steel component is coated via a powder coating process. 
     
     
         32 . The method of  claim 16 , further comprising cleaning the steel component before the steel component is coated. 
     
     
         33 . The method of  claim 16 , wherein the steel component is cleaned by washing, annealing, degreasing, pickling or any combination thereof. 
     
     
         34 . The method of  claim 16 , wherein the adhesion promoter layer is applied in a layer thickness ranging from 25 μm or less, preferably 0.01-20 μm, more preferably 0.05-15 μm, further preferably 0.1-10 μm. 
     
     
         35 . The method of  claim 16 , wherein the coated steel component is enameled with an enamel layer in a layer thickness ranging from 1 mm or less, preferably 1-500 μm, more preferably 5-250 μm, further preferably 10-180 μm, wherein the layer thickness is measured microscopically on a cross section. 
     
     
         36 . An enameled steel component obtained by a method as set forth in  claim 16 . 
     
     
         37 . The enameled steel component of  claim 36  for installation in a kitchen appliance, preferably an oven, in particular as an oven cavity, baking sheet or hob, and as an accessory in or on the cooking compartment, such as for example hot air guide plates, grill shelves, rotisserie spit rods, support racks for baking sheets, telescoping extension rails, vapor slots and/or air outlet apertures.