Spiral fin tube

High -frequency spiral fin tube welding procedures a , material cutting steel pipe to the required length ( by drawing ) , with the angle grinder , sandpaper, steel surface rust removal , inspection, adjustment pipe is not straight degrees, each m = 1.0mm, length = 10mm. Second, the high-frequency heating device starts GP.200 preheat frequency induction heating equipment , high frequency induction heating equipment according GP.200 procedures, connected to the cooling water , preheat the filament . Third, adjust the welding machine ( 1 ) mounted on the steel pipe welding machine , steel embedded in the guide wheel , high-frequency electrodes and steel , the steel strip into a contact state , and connected to the cooling water . ( 2 ) for the steel strip and steel electric arc positioned and fixed . Fourth, high-frequency welding procedure specification shown in Table

The spiral fin tube often used in the economizer, it is newly type heat transfer equipment, consists of spiral fin tubes to overcome the inferior heat efficiency and serious abrasion and short life than the bare economizer.

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