What are the processing precautions for Q195 cold-formed components?
The bending mandrel diameter should be no less than 0.5 times the plate thickness. Avoid sharp-angle bending to prevent stress concentration and cracking.
What are the drilling and cutting process requirements for Q195 steel plates?
Plasma cutting and shearing machines can be used. Drilling requires no special treatment; pay attention to cleaning edge burrs to avoid rust.
What are the assembly and connection methods for Q195 components?
Welding, bolt connection (ordinary bolts), and riveting connection. High-strength bolt connections are not recommended due to strength mismatch.
What are the incoming inspection items for Q195 steel plates?
Quality certificate, grade marking, dimensional deviation, surface quality, and mechanical property re-inspection (yield strength, tensile strength, elongation).
How to distinguish between Q195 and Q235 steel plates?
Check the material certificate and furnace number. If visual appearance is not distinguishable, identification can be achieved through mechanical property testing or spectral analysis.