Q195 What are the cutting methods for building components?
Shearing, sawing, flame cutting, and plasma cutting are all possible methods. They offer good cutting performance and are convenient for on-site construction.
Q195 What are the welding precautions for building components?
Clean away oil and rust before welding. Use low-carbon steel welding rods such as J422. Control the welding current to avoid overheating and reducing plasticity. The weld seam needs anti-corrosion treatment.
Q195 What are the requirements for cold bending?
The cold bending radius should not be less than 1 times the thickness of the plate. A 180° cold bend should not produce cracks. Building purlins, angle steel, and other components do not require heat treatment after cold bending.
Q195 What are the galvanizing process requirements for building components?
Hot-dip galvanizing is commonly used for corrosion protection in buildings. The zinc coating thickness should be ≥85μm to ensure corrosion resistance. After galvanizing, check for defects such as peeling and exposed substrate.
Q195 What are the storage requirements for building materials? Store in a dry, well-ventilated area, avoiding rain and water accumulation. Place wooden blocks at the bottom to prevent rust and deformation. Store in different categories according to their specifications.