Steel:
Steel is one of the most commonly used materials for warehouse shelves, including cold-rolled and hot-rolled steel. Steel has high strength, high rigidity and good machinability, which is suitable for the manufacture of various types of shelves. Cold-rolled steel plate because of its smooth surface, high strength and hardness, suitable for making the main components of the shelf. Hot rolled steel has good plasticity and toughness after high temperature treatment, and is suitable for parts that need to be bent.
Production process: raw materials → flat cutting → punching → cold rolling forming → size, flat head → welding → correction → surface spraying → packaging → finished products.
The process of spraying is: degreasing (removing oil) → washing (removing residual alkaline) → physical rust removal → washing → acid-base synthesis → washing → phosphating (forming a phosphating film) → washing → passivation (removing residual impurities) → washing → drying → electrostatic powder spraying → supplementary spraying →180 ° C high temperature curing for 20 minutes → air drying → inspection → packaging and storage → Ready to be sent.The equipment involved are punching machine bending machine punching machine laminate bending spot welding machine column punching molding machine import automatic spraying equipment.
