Sequente est novissima scientia update de tubis quadratis，Covering technological advancements、Market dynamics and industry news：
progresso technica
High precision forming technology
Domestic square tube production enterprises have achieved the production of high-precision square and rectangular tubes，Precisio dimensionalis stabile attingere potest±0.05mmintro。ex exemplo，Shanghai Jialeng Steel, cum auxilio China North University of Technology and Dalian Sangao Company，Developed a high-precision complex cross-section cold bending production line，Adopting guide column high stiffness frame、plug-in-action4Roller frame and other technologies。
In terms of high-precision detection technology，COPRA®Desktop cross-sectional scanners are widely used，Can achieve non-contact measurement of profile cross-section，And compare it with the ideal design section，Quilt et accurately determinare deviationes。
Flexible Forming Technology
The development of a new cold bending unit forming makes the specification adjustment of square tubes more flexible。ex exemplo，Cold bending forming unit with adjustable roll width developed by Dalian Fudi and other enterprises，Capable of rapid adapting to the production of products of different specifications。
New type of rolling mill structure（Like floating memorial archway mill）Further enhancing the flexibility and adaptability of square tube production。
New materials and new processes
Beijing University of Science and Technology has developed a new technology for the rolling die forming of large-diameter square tubes，Successfully achieved650×650mmsubter、Maximum parietem densitatem25mmFormation of Square and Rectangular Tubes。
Linggang Steel Pipe Company has developed high-performance、Exalta turris precisius crane tuba quadraticus，useQ355Bmaterial，parietem densitatem12mm，Fortitudo cauda perversa est1.94times。
