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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 ... อ่านเพิ่มเติม

Product Overview Steel Pipe ERW Tube Mill Machine with High Frequency Welding is a complete manufacturing solution designed for producing high-quality welded steel pipes used in construction, infrastructure, ... อ่านเพิ่มเติม

ZY-219 API line pipe, casing pipe, ASTM A 53 steel pipe milling machine Applicable material (1)cold-rolled steel strip (2)Material: Low-carbon steel, low alloy steelδs≤345Mpa,δb≤610Mpa (3)The thickness of steel ... อ่านเพิ่มเติม

Technology Since 1994, Improve during ourselves Production Machine Model :ZY-273 Raw material hot rolled steel, galvanized steel Round tube outer diameter 88.9mm-273mm Wall thickness Round tube 2.0mm-12.0m Tube ... อ่านเพิ่มเติม

Tight Tolerance Demands in Precision Tube Production Precision tube users in mechanics and furniture demand OD, wall and roundness held to narrow bands, and reject parts the moment a mill drifts. Small-diameter ... อ่านเพิ่มเติม

ZY-32 Tube mill for furniture pipe,construction tube, and so on General instruction of Product Raw Material information: 1 Mateairal applcaition Hot or cold rolled steel strips, galvanzied steel strips 2 ... อ่านเพิ่มเติม

ZY-660 Tube mill for API standard pipe, BS water pipes. etc General instruction of Product Raw Material information: 1 Mateairal applcaition Hot or cold rolled steel strips, galvanzied steel strips 2 Material ... อ่านเพิ่มเติม

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 ... อ่านเพิ่มเติม

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... อ่านเพิ่มเติม

Surface and Tolerance Problems in Furniture Tube Production Furniture tube buyers reject parts that show a visible weld bead, scratches or OD drift beyond ±0.1mm, because chrome plating and powder coating ... อ่านเพิ่มเติม