Suzhou SPT Mill Co., Ltd
Suzhou SPT Mill Co., Ltd SPT produce and supply all the steel pipe and steel sheet forming and finishing line. Here is your one-stop-solution partner for the steel pipe and steel sheet producing. Also
Add to Cart
1. Process data
1.1 Product specification
Pipe dia. Φ60～Φ168 mm
Pipe WT 5～25 mm
Pipe length ≤15 m
1.2 Pipe OD tolerance before straightening: ±1.5%
1.3 Pipe ovality before straightening ≤1.2%(max OD tolerance no more than 3mm)
1.3 Pipe quality after straightening
Straightness: pipe ends in 1m ≤1mm/m
pipe≤1mm/1.5m
Pipe roundness: improve 50% on original basis
Pipe whole length bending degree: no more than 0.15% of whole length
Surface quality: no cutting marks, and concave
2. Process flow description
This straightener is for straightening of pipes by upper and lower roller bending deformation, pipe inner stress released, and at the same time, improving pipes surface quality, reaching the dimension precision required of process. The pipes in bundle craned to inlet charging table, kicking to inlet roller table by kicking device piece by piece, roller table lifted up, then the pipes transferred to straightener main mill, after biting, roller table fall down, after straightening, the pipes transferred to outlet table and kicked into storing and collecting basket.
