2024-02-18 1. Downhill forming methodDownslope shaping of welded pipe equipment can significantly reduce edge extension.2. Increase the middle extension of the billetDuring the forming process, the reduction of the opening hole pattern increases, making the gap between the upper and lower rollers slightly smal
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2024-02-02 1. How does edge gnawing of straight seam steel pipes occur? What impact does it have on welded pipes?The edge of the straight seam steel pipe usually occurs on the slitting strip roll. The edge of the straight seam steel pipe is a jagged and uneven phenomenon at the edge of the steel strip. The rea
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2024-02-01 1. Chemical composition analysis: chemical analysis method, instrumental analysis method (infrared C-S instrument, direct reading spectrometer, zcP, etc.).① Infrared C-S meter: Analyze ferroalloys, steelmaking raw materials, and C and S elements in steel.②Direct reading spectrometer: C, Si, Mn, P, S
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2024-01-31 What are the quality factors that affect seamless pipes & tubes? Let’s analyze them in detail:
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2024-01-31 The main technical features of spiral steel pipe:During the forming process of the spiral steel pipe, the steel plate deforms evenly, with small residual stress and no scratches on the surface. The processed spiral steel pipe has greater flexibility in the diameter and wall thickness size range, esp
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2024-01-30 Common materials for square tubes (SHS) mainly include the following:
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2024-01-30 A spiral steel pipe is a long steel pipe with a hollow cross-section and no seams around it. Steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, coal gas, water, and certain solid materials. Compared with sol
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2024-01-29 There are many methods for quality inspection of large-diameter straight seam welded pipes, among which physical methods are also commonly used. Physical inspection is a method that uses some physical phenomena to measure or inspect. The inspection of internal defects in materials or large-diameter
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