The invention relates to a production process of a super long
brass condenser
pipe, comprising the following steps of: preheating a cast
ingot, peeling and extruding, scale sawing, straightening,
forced circulation acid washing, cold rolling, induction
continuous annealing, vertical rolling, secondary series stretching, scale sawing, intermediate annealing with protective
atmosphere, multi-pass
chain type stretching, finishing, cleaning, finished product annealing with protective
atmosphere and packaging. According to the production process disclosed by the invention, a large-cast-
ingot high-
extrusion-ratio is adopted, thus
extrusion finished product ratio is improved; a
forced circulation acid washing method is adopted, thus
environmental protection is enhanced and production
operational safety is guaranteed; induction cast
ingot heating and online induction intermediate annealing are adopted, thus
energy consumption is reduced; a vertical rolling process after online induction is adopted, thus floor area of the process in a workshop is reduced; higher cold rolling elongation is adopted, thus flow of the production process is shortened and production efficiency is improved; longer
intermediate product production is adopted, thus number of stretching manufacturing heads is reduced, and finished product ratio is improved; and a super long straight bar condenser
pipe is produced, thus application range of the product is expanded.