tube mill machine online manufacture

Zinc Burn-Back When Welding Galvanized Strip Galvanized coil saves a post-plating step, but welding it burns the zinc at the seam and leaves a grey, corroded line that buyers reject. Mills that overheat the ... Read More

Output Bottlenecks in Small-Diameter Tube Lines Small-diameter tube has thin margins, so profit depends on throughput. Mills that must slow down to hold weld quality or roundness leave money on the table, and ... Read More

Advantage Pipe production is an industry which need qualified machine and experienced technology link together to produce the products, that means the machine and experience are both important, our company are ... Read More

ZY-50 HF welded pipe, construction pipe,carbon steel pipe welding machine line Raw material application CR steel, copper coated CR steel Production OD range(mm) 20-63.5 Production thickness range(mm) 0.8-3.0 ... Read More

ZY-76 BS standard pipe, BIS standard pipe, hot rolled steel pipe production line Raw material application HR steel, carbon and low carbon Production OD range(mm) 31.8-88.9 Production thickness range(mm) 1.2-3... Read More

ZHANGJIAGANG ZHONGYUE WELDED PIPE MILL_MODEL ZY16 Technical and service advantage Pipe production is an industry which need qualified machine and experienced technology link together to produce the products, ... Read More

Problem Small diameter tube makers often struggle to hold roundness and weld straightness when running 8-18mm pipe. A tiny cross-section amplifies any roller misalignment into visible ovality and a wandering ... Read More

Final Size and Roundness Control After Welding The weld does not finish the tube the sizing section does. Without enough sizing stands and a final straightener, welded tube leaves the line oval, bowed or off... Read More

Premature Roll Wear and Dimensional Drift Roll and shaft wear is the hidden cost of tube production: as shafts wear, the pass opens up and OD, roundness and weld quality drift until the mill must stop for re... Read More

Weld Bead and Heat Distortion After Welding The outside weld bead and residual heat are the two biggest threats to tube quality right after welding. A rough bead marks downstream rolls and ruins surface finish, ... Read More