Cold-heading finished silk treatment process

Abstract

The invention discloses a cold-heading finished silk treatment process. The process comprises the following steps: (1) putting the finished silk into a nodulizing annealing furnace for nodulizing annealing; (2) checking the finished silk subjected to the nodulizing annealing, and performing aging treatment on the qualified finished silk; (3) putting the finished silk subjected to aging treatment into a treatment pool and performing surface treatment: (a) performing three passes of acid washing in an acid washing pool; (b) performing water washing in a water washing pool; (c) performing oxalic acid washing in an oxalic acid pool; (d) phosphorizing in a phosphorizing pool; and (e) saponifying in a saponifying pool; and (4) drying. By adopting the process disclosed by the invention, the treated cold-heading finished silk has the advantages of high nodulizing rate and low decarbonization rate and easiness in lubrication and use; for a cold-heading product which is very difficult to produce and has a complicated structure, the quality of the product is good, the cracking in the product cold-heading process can be prevented, and the service life of a die is remarkably prolonged.

Description

technical field [0001] The invention relates to a process for processing cold heading finished silk. Background technique [0002] The cold heading finished wire can be directly used to make various rod parts on the cold heading equipment. The parts have high precision and strong interchangeability, especially high production efficiency and low cost, which can greatly reduce the labor intensity of workers. It is widely used in production and production of automobile and motorcycle parts. Among them, the quality of the cold heading finished wire itself is the primary key. Only high-quality cold heading finished wire (such as fine metallographic structure and smooth surface) can produce cold heading products with high difficulty and complex structure, and the quality of the product can be guaranteed. Otherwise, Cracks are prone to occur during the cold heading process of the product, and products with complex structures cannot be formed. In addition, the service life of the ...

AI Technical Summary

Problems solved by technology

Among them, the quality of the cold heading finished wire itself is the primary key. Only high-quality cold heading finished wire (such as fine metallographic structure and smooth surface) can produce cold heading products with high difficulty and complex structure, and the quality of the product can be guaranteed. Otherwise, Cracks are prone to occur during the cold heading process of the product, and products with complex structures cannot be formed, and the service life of the mold will also be greatly affected