Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
carbon steel plate,steel coil,stainless steel plate,china export service provider.
carbon steel plate,steel coil,stainless steel plate,china export service provider.
Pickling Plate: Made from high-quality hot-rolled thin plates, pickling plates are processed to remove oxide layers, trimmed, and finished. Their surface quality and performance, mainly for cold bending or stamping, are intermediate between hot-rolled and cold-rolled plates.
Hot Rolled Plate: Hot-rolled plates have relatively lower strength and poorer surface quality (oxidation and low smoothness) but good plasticity and are generally medium-thick plates.
Characteristics of Pickling Plates Compared to Hot Rolled Plates:
1. Surface Quality: Pickling plates remove surface oxide layers, improving surface quality and facilitating welding, oiling, and painting.
2. Dimensional Accuracy: Flattening the plates changes their shape, reducing flatness deviations.
3. Surface Smoothness: Improved smoothness enhances appearance.
Effects of Using Hot Rolled Plates
On Welding:
1. Spot Welding: Requires oxide layer removal; specific yield strength needs welding experiments.
2. Bolt Welding: Requires oxide layer removal; specific yield strength needs welding experiments.
3. Ordinary Welding: High splatter, difficult deformation control, and challenging weld grinding.
4. Laser Cutting: High deformation, unsuitable for parts requiring high precision, affecting subsequent welding.
5. Bending: Lower cold bending/stamping performance, prone to cracking, reducing product lifespan.
On Painting:
1. Pre-treatment: Requires longer pickling time due to oxide layers, with pickling effect needing confirmation.
2. Electrostatic Powder Spraying: Poor surface smoothness hinders spraying.
3. Rusting: Rust on hot-rolled plates is hard to remove.
Differences Between Cold Rolled and Hot Rolled Steel Plates in Sheet Metal
1. Cold Rolled Plates: Smooth surface with a certain gloss, similar to common steel water cups.
2. Hot Rolled Plates: If not pickled, they resemble many ordinary steel plates, with rusty surfaces appearing red and non-rusty surfaces appearing purple-black (oxide layer).
