Shaped rod processing technology

Abstract

The invention discloses an irregular bar machining process. The irregular bar machining process comprises the following process steps of first-time solid solution, first-time sand blasting, first-time cold drawing, second-time solid solution, second-time sand blasting, second-time cold drawing, third-time solid solution, acid pickling, third-time sand blasting, finished product drawing, fixed-length cutting, straightening, polishing, checkout and packaging and warehousing. An original acid pickling step is omitted after semi-finished product cold drawing, the original effect is achieved by changing sand blasting process parameters and sand shot size. By the adoption of omission of the partial acid pickling step, the production cost can be saved, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to a special-shaped rod processing technology. Background technique [0002] The manufacturing cost of special-shaped rods in the cold finishing factory is high, and the process is relatively complicated. The original production process is solid solution—black skin straightening—peeling—sharpening—solid solution—pickling—sand blasting—cold drawing—solid solution— Pickling—sand blasting—cold drawing—solid solution—pickling—sand blasting—finished product pumping—cutting—straightening—polishing—inspection—packaging and warehousing, each cold drawing needs to be pickled, not only the production cost is high, Moreover, the amount of pickling liquid used is large, which can easily cause environmental pollution. In order to reduce production costs, improve operating efficiency, and shorten material circulation time, it is necessary to redefine the production process of special-shaped rods in the nuclear refrigeration refinery. Contents...

AI Technical Summary

Problems solved by technology

[0002] The manufacturing cost of special-shaped rods in the cold finishing factory is high, and the process is relatively complicated. The original production process is solid solution—black skin straightening—peeling—sharpening—solid solution—pickling—sand blasting—cold drawing—solid solution— Pickling—sand blasting—cold drawing—solid solution—pickling—sand blasting—finished product pumping—cutting—straightening—polishing—inspection—packaging and warehousing, each cold drawing needs to be pickled, not only the production cost is high, Moreover, the amount of pickling liquid used is large, which can easily cause environmental pollution. In order to reduce production costs, improve operating efficiency, and shorten material flow time, it is necessary to redefine the production process of special-shaped rods in the nuclear cooling and refining plant.