| Uncoiling |
Process that put into raw material (skelp) by unbinding rolled material (skelp) |
| Strip Washer |
Prior treatment process that removes alien substance of skelp by high pressure cleansing |
| Levelling |
Process that unfolds skelp evenly for smooth molding |
| Forming |
Process that a series of molding roll is formed to pipe while skelp passes through |
| Welding |
Process that welds section by using high frequency electric resistance |
| Bead Trimming (Outside, Inside) |
Process that cuts projection of welded part |
| Inside Coating |
Process that coats by spraying special painting for corrosion resistance |
| Water Cooling |
Water cooling process that is used for heated components to be made equally after high frequency process |
| PickLing |
Process that removes alien substances attached to the outside of pipe |
| Pre-heating |
Preheating process that is used for zinc to be attached to the surface of pipe easily |
| Hot dip galvanizing |
Process that tempers zinc so that zinc is attached and surface can be made equally while penetrating into pumped Zinc Through in zinc plating pot |
| Testing ECT |
eddy-current testing on the web that is used to ensure the reliability of welded part |
| Sizing |
Process that is used to meet the external diameter precisely |
| Chromate |
Process that forms chemical conversion coating of external diameter of pipe to improve corrosion resistance of product |
| U.V Coating / Color painting |
Process of U.V. or painting treatment that is used to produce high corrosion resistance according to customer's order specification |
| Cutting off |
Process that cuts at high speed with alpha cutter according to the ordered length by customer |
| End Facing & Chamfering & Packing |
Process that wraps product with full auto packaging (Dedimpler, end facing and chamfering , Bundling, Banding) |
> Steel sheet Business > Manufacturing process
