Patent ID: 8092213

Claim:
A process for the production of a flame arrester insert, comprising the steps of: winding two stainless steel strips wound together, wherein a first stainless steel strip of said two stainless steel strips is a smooth strip and a second stainless steel strip of said two stainless steel strips is a grooved strip having defined grooving, which, after winding, rest on each other at contact points and, between the contact points form defined gaps for the passage of a fluid; and providing a surface coating on said two stainless steel strips after said winding step in such a way that the two stainless steel metal strips are coated on freely accessible surfaces, but not the contact points where the two stainless steel strips rest directly on each other, wherein the surface coating fixes the two stainless steel strips together in a configuration of a flame arrester insert with contact at the contact points and without any surface coating at the contact points, and wherein the surface coating is applied wet from a coating solution without electric power, wherein said coating solution includes nickel ions and phosphorous, and said providing step includes the reduction of said nickel ions to form nickel metal.