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  • 2023-05-18

    Tube Mill Fault Analysis——Squeeze Roller Mechanism Scratches
    (1) The hole type does not matchThere are two-roller, three-roller and four-roller weld seam extrusion structures. As long as the combined hole shapes do not match, it is easy to cause scratches on the surface of the tube blank, especially the two-roller structure.There are many factors that cause t
  • 2023-05-11

    Tube Mill Fault Analysis——Analysis of Problems Caused by Sand Hole Tube
    Sand-hole pipes are also a kind of quality accident caused by weld leakage, but their gaps are very small, some of them cannot be directly observed by human eyes, and must be found through testing equipment, so we call this kind of pipes sand-hole pipes. The main reasons for sand hole pipes are as f
  • 2023-04-21

    Maintenance and maintenance methods of auxiliary equipment of tube mill production line - hydraulic testing machine
    The hydraulic testing machine is suitable for various pressure-bearing products to perform performance tests such as compressive strength testing, burst testing, and sealing performance testing. The hydraulic testing machine has a wide range of applications, such as rubber hoses, hoses, spiral welde
  • 2023-03-16

    The difference between square cold-formed hollow section steel and cold-drawn square steel pipe
    Square cold-formed hollow section steel is a section steel with square cross-section shape and size made of hot-rolled steel plate after cold-bending and then high-frequency welding. It is also called welded square steel pipe. The section steel has a stable production process and high precision, and
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