Обзор

Наш Round-to-square FFX Direct Forming acts as the core processing section of high-frequency electric resistance welded pipe mills. It is engineered to gradually bend and deform incoming steel strip into closed tubular profiles via sequential roll forming. After the strip is formed into an open tube profile, an HF induction welder joins its longitudinal edges to form a uniform, reliable weld seam. The freshly welded hot pipe is then transferred to the cooling section for controlled cooling to stabilize its metallurgical structure. Next, sizing stands accurately calibrate pipe outer diameter to meet customized dimensional tolerance requirements. Installed downstream of the sizing mill, multiple Turks Head units perform secondary dimension correction and pre-straightening, greatly improving the roundness, straightness and overall geometric precision of finished OCTG pipes.
Conventional Forming(W Forming)
Flexible Forming(FF/FFX)
Direct Forming(DFT)
Quick Change System
Технические характеристики
| Model╲Spec. | Size(mm) | Thickness(mm) | Forming Method | Roll Quick Change |
| ZJ-GH32 | Φ10-32 | 1.1-2.25 | W | Roller changing trolley |
| ZJ-GH50 | Φ12-50 | 1.2-2.75 | W | Roller changing trolley |
| ZJ-GH76 | Φ32-76 | 1.5-3.5 | W | Rafted System |
| ZJ-GH89 | Φ32-89 | 1.5-3.75 | W | Rafted System |
| ZJ-GH114 | Φ40-114 | 1.5-4.0 | W | Rafted System |
| ZJ-GH140 | Φ48-140 | 1.5-5.0 | W | Rafted System |
| ZJ-GH165 | Φ76-165 | 1.8-6.0 | W/DFT | Rafted System |
| ZJ-GH219 | Φ89-219 | 2.0-8.0 | FF/DFT | Shaft Assembly |
| ZJ-GH273 | Φ114-273 | 3.0-10.0 | FF/DFT | Shaft Assembly |
| ZJ-GH325 | Φ165-325 | 5.0-14.0 | FF/DFT | Shaft Assembly |
| ZJ-GH355 | Φ165-355 | 5.0-15.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH406 | Φ219-406 | 6.0-16.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH457 | Φ219-457 | 6.0-18.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH508 | Φ273-508 | 6.0-20.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH610 | Φ273-610 | 6.0-21.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH660 | Φ325-630 | 6.0-22.0 | FFX/DFT | Shaft Assembly |
| ZJ-GH711 | Φ325-760 | 8.0-22.0 | FFX/DFT | Shaft Assembly |