Grain Oriented and Non-Oriented Electrical Cold Rolled Low Alloy Silicon Steel Coil

What are the storage requirements for cold-rolled steel?
A: It must be stored in a dry, ventilated, and rainproof warehouse, avoiding open-air stacking. Plates should be placed overhead to prevent moisture and rust. Plates of different materials and specifications should be stored separately to avoid mixing.
What are the common methods for cutting cold-rolled steel?
A: These include shearing, laser cutting, plasma cutting, and punching. The appropriate method should be selected based on plate thickness, precision requirements, and processing costs.
What precautions should be taken when welding cold-rolled steel?
A: Select compatible welding materials and control the welding temperature to avoid deformation or performance degradation caused by high temperatures. Clean weld slag promptly after welding and perform rust prevention treatment if necessary.
What are the surface treatment steps for cold-rolled steel before painting?
A: These typically include degreasing (to remove oil stains), rust removal (if rust is present), phosphating (to enhance coating adhesion), and passivation (to improve corrosion resistance).
How is the surface of cold-rolled steel protected during processing?
Answer: Wear gloves during processing to avoid oil or scratches on your hands from contaminating the plate; add protective pads at the contact points between the mold or equipment and the plate, and use moisture-proof and scratch-resistant packaging materials during transportation.