The invention discloses a gold and silver hollow bracelet
processing technology and belongs to the technical field of jewelry
processing technologies. The
processing technology comprises the following steps: preparing material: according to the specifications for processing gold and silver hollow bracelets, preparing
sheet material with corresponding specifications; manufacturing a
pipe: processing the
sheet material into a round
pipe with a gap and straightening the round
pipe; annealing; calibrating: straightening the gap;
welding without
welding material: eliminating gap through high-temperature heating to form a gapless round pipe;
cutting:
cutting the gapless round pipe according to the finished size of a gold and silver hollow bracelet, and
polishing two ends of the gapless round pip; pre-forming: processing the gapless round pipe into an
open type circular ring, and forming a closed circular ring by performing high-temperature heating on the
open type circular ring; shaping: shaping the shape of the closed circular ring until specified requirements are met; forming: processing the closed circular ring into a hollow bracelet with elliptic sections. Through the processing steps, since a only a piece of
sheet material is needed, the hollow bracelet can be manufactured, the processing technology is reduced, the processing efficiency is improved, the forming effect is good, and meanwhile, the gap is closed automatically through high temperature, so that
welding without welding material is achieved, and the purity and
fineness are guaranteed.