| 摘要 |
In a flame arrester insert comprising two metal strips ( 1, 2 ) wound together, of which a first metal strip ( 1 ) is a smooth strip and the second metal strip ( 2 ) is a grooved strip having defined grooving, so that they rest on each other at defined contact points ( 3 ) and, between the contact points ( 3 ), form defined gaps ( 4 ) for the passage of a fluid, the stability can be increased and corrosion prevention can be implemented even with inexpensive materials by the metal strips ( 1, 2 ) resting directly on each other at the contact points ( 3 ) and, outside the contact points ( 3 ), having a surface coating ( 5 ) which, close to the contact points, is a uniform joint coating of the surfaces of the metal strips ( 1, 2 ) that point toward each other.
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