Current label: Manufacturer's direct selling square tube
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Production and manufacturing of square tubes: many defects of square tubes are formed in the process of piercing, so the piercing process of tube blanks is the key process of consuming square tubes. The main difficulty of high alloy piercing is the low piercing performance. In order to ensure the quality, it is necessary to rationally select the deformation parameters of piercing. A small tightening amount will cause instability in the perforation process, so the critical tightening amount per hour should be the first tightening amount
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Square tube is a hollow square thin-walled steel tube, also known as steel cold-formed profile: it is a profile steel with square section dimensions made of Q235 hot-rolled or cold-rolled strip steel or coiled plate as the base material after cold bending and forming, and then high-frequency welding. Hot rolled extra thick wall square tubes are subject to cyclic loading except for wall thickening. Glass curtain walls, automobile chassis, solar power generation supports and many machine parts are subject to cyclic loading
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Mechanical properties of square tubes 1. Performance index analysis of square tubes - plastic plasticity refers to the ability of metal materials to estimate the specifications and characteristics of efficiency enhancing square tubes under load, and introduce the specifications and characteristics of welded circular tubes and square tubes to produce plastic deformation (permanent deformation) without damage. 2. Performance index analysis of square tube - hardness and hardness are indicators to weigh the hardness and softness of metal materials. at present
