For the production of high-strength reinforcing bars with a diameter of 9.5 mm from C86D steel, cold-formed rebar with a diameter of 9.7 mm was used, made according to the direct drawing scheme from hot-rolled coiled steel with a diameter of 16.0 mm, which was subjected to cold profiling with a dent depth of 0.20 mm in an idle three-roller stand and subsequent stabilization at a temperature of 390 ± 10°C with a specific technological tension of 480 MPa. The power parameters of the application of a periodic profile on the conversion workpiece, the maximum value of the forces acting on the rollers, as well as the values of the required pulling force, have been determined. It has been experimentally shown that a 5.0% decrease in the idle cross-section of a reinforcing bar after deposition of indentations and stabilization is compensated by an increase in σu and σ0.2 by 4.6 and 8.7%, respectively. It has been shown that correction of roll adjustment is necessary during the line riding period and development of process tension. The proposed methodological approach with the use of modeling makes it possible to design equipment for the profiling of rebar integrated into the line of the stabilization section with a pulling device.

中文翻译：

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使用闲置机架从 C86D 钢生产冷弯钢筋的技术要素

为了用 C86D 钢生产直径为 9.5 毫米的高强度钢筋，使用直径为 9.7 毫米的冷弯钢筋，根据直接拉拔方案由直径为 16.0 的热轧卷钢制成mm，在闲置的三辊机架中进行 0.20 mm 凹痕深度的冷成型，随后在 390 ± 10°C 的温度下以 480 MPa 的特定技术张力进行稳定。已经确定了在转换工件上应用周期性轮廓的功率参数、作用在滚子上的力的最大值以及所需的拉力值。实验表明，5. 压痕沉积和稳定后钢筋空闲横截面的 0% 减少由 σu 和 σ0.2 分别增加 4.6% 和 8.7% 来补偿。已经表明，在生产线骑行期间和过程张力的发展过程中，需要对辊子调整进行校正。所提出的使用建模的方法论方法可以设计用于使用牵引装置集成到稳定段线中的钢筋仿形设备。