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8 Inch API 5CT standard tube, ASTM A 53 Steel tube, construction tube making machine 1: Main Technical Parameters of ZY219 Tube Making machine Raw material hot rolled steel, galvanized steel Round tube outer ... Czytaj więcej

ALL SOLUTIONS FOR STEEL PIPE/TUBE PRODUCTION Machine Model :ZY-76/89/168/219 Raw material steel pipe for BS Standard, A53 standard etc Round tube outer diameter 21.3mm-219mm divide by different machine model ... Czytaj więcej

ZY125 hot rolled tube, section tube, construction tube making machine Main Technical Parameters of ZY125 Tube Making machine Product Overview The Hot Rolled Steel Tube Mill Machine and Roll Forming Machine for ... Czytaj więcej

4 Inchgalvanized steel tube, steel fence tube, auto tube making machine Main Technical Parameters of ZY89Tube Making machine Raw material cold rolled steel, galvanized steel Round tube outer diameter 33.4mm-101... Czytaj więcej

ZY273 steel tube, API standard tubem ASTM tube production line Main Technical Parameters of ZY219 Tube Making machine Product Overview The Large Size SS Tube Mill Machine and Rectangular Pipe Roll Forming Mill ... Czytaj więcej

Problem Older vacuum-tube welders waste energy, drift with temperature, and respond slowly to speed changes, producing inconsistent weld strength and higher electricity cost per ton of tube. Cause Vacuum-tube ... Czytaj więcej

Problem Hot rolled strip carries mill scale and wider thickness variation, which wears rollers, disturbs the weld gap and leaves surface defects that are hard to hide on finished tube. Cause Mill scale is ... Czytaj więcej

Problem Welding galvanized strip produces zinc vapor that contaminates the weld, leaves black seams and porosity, and coats nearby parts with zinc oxide dust, degrading weld strength and appearance. Cause Zinc ... Czytaj więcej

Problem Producing 0.4-1.0mm thin-wall tube causes two failures on ordinary mills. The weld either burns through because heat input is too high, or it opens up because the strip edges lose alignment before they ... Czytaj więcej

Problem Cold rolled strip is smooth and precise, but any scratch, edge damage or over-forming during tube making immediately shows on the finished pipe and destroys the surface quality the customer paid for. ... Czytaj więcej