The Imbedded Fin, also known as a G-fin (grooved fin), is widely used throughout the world. This fin is considered to have a mechanical bond to the tube and has negligible deterioration of the fin bond with heat cycling. The fin is usually specified for high temperature applications with the fin material being the limiting factor. Typically, this fin is produced out of aluminum or copper fin strip. This fin type is also suitable for carbon steel or stainless steel fin materials, but requires special tooling and processing of these steel fin strips.
Preforming is not required for aluminum fin on carbon steel tubes, but is required for copper or steel fin and in the case of aluminum fin on aluminum tubes. Dovetail rollers are used to preform the fin and facilitates insertion into the groove. When standard groove depth is used for aluminum or copper fin strip, the fin strip width is always .012” larger than the fin height, i.e. .625” plus .012” = .637”.
he Imbedded Fin, also known as a G-fin (grooved fin), is widely used throughout the world. This fin is considered to have a mechanical bond to the tube and has negligible deterioration of the fin bond with heat cycling. The fin is usually specified for high temperature applications with the fin material being the limiting factor. Typically, this fin is produced out of aluminum or copper fin strip. This fin type is also suitable for carbon steel or stainless steel fin materials, but requires special tooling and processing of these steel fin strips.
Preforming is not required for aluminum fin on carbon steel tubes, but is required for copper or steel fin and in the case of aluminum fin on aluminum tubes. Dovetail rollers are used to preform the fin and facilitates insertion into the groove. When standard groove depth is used for aluminum or copper fin strip, the fin strip width is always .012” larger than the fin height, i.e. .625” plus .012” = .637”.
