The invention discloses a two-layer
copper brazed steel
pipe forming unit, comprising a horizontal unreeling
machine, a
pipe-making forming
machine, an
induction heating brazing furnace, a cooling device, cleaning, air-
drying and flaw detection apparatus, and a reeling device, all of which are sequentially arranged parallel to each other, wherein the horizontal unreeling
machine comprises an unreeling machine base, a rotating shaft and a
discharge disc; the
pipe-making forming machine comprises a
nose box, a strip forming power mechanism, a forming
nose, a
mandril holder and a
mandril; the
induction heating brazing furnace comprises a
brazing furnace frame, a brazing furnace cover and an
induction heating device; the cooling device comprises a
cooling pipe support and a
cooling pipe; the
cooling pipe is composed of an inner pipe and an outer pipe; the cleaning, air-
drying and flaw detection apparatus comprises a cleaning liquid box, a pipe cleaning machine, an air-
drying device, a pipe traction device, a flaw detection device and a cleaning liquid circulating pipeline; and the reeling device comprises a reeling trolley with a
brake truckle, and a receiving disc. The two-layer
copper brazed steel pipe forming unit is novel and reasonable in design, high in working efficiency, high in quality of a product, wide in application range, good in using effect and convenient to popularize and use.