The invention provides a pre-volatilization method for a
heat exchanger zinc-sprayed component, a pre-volatilization
zinc-sprayed component and a
heat exchanger, and relates to the technical field of
heat exchanger manufacturing, the pre-volatilization method comprises the following steps: carrying out
zinc pre-volatilization treatment on the heat exchanger zinc-sprayed component through a
brazing furnace to obtain the pre-volatilization zinc-sprayed component; the temperature of the pre-volatilization treatment is 400-550 DEG C; and the conveying net speed of a zinc spraying part in the
brazing furnace is 150 mm / min to 300 mm / min. The technical problem that excessive accumulation of Zn affects the
welding quality and causes local
corrosion when a zinc (Zn) spraying component of a heat exchanger is directly welded in the prior art is solved, and the technical effects of reducing Zn accumulation in a
welding seam area, reducing the
potential difference of a
welding seam part, improving the
corrosion resistance of the heat exchanger and improving the welding quality are achieved.