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Conhecimento PEB

Fabrication & quality

How PEB members are cut, welded, roll-formed, blasted, painted, inspected and packed.

7 artigos

Fabrication & quality
FundamentalsFrame systemsComponentsDesignMaterialsFabricationErectionStandardsApplicationsWSC productsWSC solutions
Factory floor of a PEB plant with built-up rafters on welding lines and finished members stacked for paintingFabricationFabrication processHow a PEB plant turns plate and coil into a building kit: cutting, welding, roll forming, blasting, painting, inspection and export packing.CNC cutting table nesting tapered web plates on a large steel plateFabricationPlate cuttingHow PEB flanges and tapered webs are cut from steel plate by CNC plasma and oxy-fuel, nested for low scrap and checked for edge quality.Gantry submerged arc welding machine welding the flange-to-web joint of a tapered I-section rafterFabricationAutomatic weldingHow PEB columns and rafters are fitted up and welded by automatic submerged arc welding, then straightened and fitted with end plates and stiffeners.Cold roll forming line producing Z purlins from galvanized coil with a punching unit and flying shearFabricationCold roll formingHow Z and C purlins, girts, eave struts and roof and wall panels are cold roll formed from coated coil, with inline punching and cut-to-length.Blasted PEB rafter entering a paint booth with airless spray equipmentFabricationBlasting and paintingShot blasting to ISO 8501-1 Sa 2½, profile, primer and paint systems selected to ISO 12944, DFT checks and when to choose hot-dip galvanizing for PEB.Inspector performing ultrasonic testing on the welded knee of a PEB frame memberFabricationQuality controlQuality control for PEB fabrication: material traceability, VT, UT and MT weld inspection, dimensional checks, coating DFT and the export quality dossier.Bundled PEB rafters and purlins being loaded into a 40-foot container at the factoryFabricationPacking and shippingHow PEB members, cladding and accessories are marked, bundled and packed into containers, flat racks or break-bulk for export, and the shipping documents.

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