1、Process flow

⑴ Bolts:
Steel feeding → testing → shot blasting → cutting → cutting → Wenden → inspection → rough treatment → wire rolling → precision treatment → heat treatment and tempering → hot galvanizing → inspection → packaging → leaving the factory

⑵ Nut:
Chemical analysis → shot blasting → cutting → heating → forming → polishing → heat treatment → precision inspection → tapping → galvanizing → packaging → leaving the factory

⑶ Accessories:
Raw material testing → cutting → flattening → punching → welding → polishing → hot-dip galvanizing → inspection → packaging → leaving the factory

2、 Process characteristics

(1) The hot forging process adopts high-frequency induction heating technology, which overcomes the problems of oxidation and unattractive appearance of the product head of hot forged bolts.

(2) Establish a product inspection organization and strictly adhere to process discipline to ensure work procedures, quality assurance through work procedures, product quality assurance through work quality, user requirements through product quality assurance, and ensure that "defective products do not leave the factory", Ensure that all factory products are qualified.

(3) The hot-dip galvanizing workshop adopts an electric heating process to ensure constant heating and ensure the quality of the zinc layer.

(4) Drawing on the "Haier experience" and introducing the concept that each process is a market in the production process, the next process should be inspected as the previous process, and a strict reward and punishment system should be implemented.