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线材生产中低温加热和轧制工艺的应用 根据205小型型钢和线材轧机,开发出一种复合数学模型,以表述小方坯(100mm)在步进式炉中的加热及在小型型钢轧机(4列25架)上的轧制状况。试轧线材的直径为6.5～14mm,按机架允许的负荷轧制时,10～45号钢的加热温度可从1150～1200℃降至1030～1100℃。采用低温轧制和低温卷取,可保证线材足够高的机械性能,这就有可能减少热处理的时间或者完全取消热处理。组织为索氏体时可达到强度和塑性的最佳配合,而形成索氏体的温度范围,对10～20号钢来说则相应于580～650℃的卷取温度。在这种情
Application of Low Temperature Heating and Rolling Processes in Wire Production According to the 205 small section steel and wire rod mill, a complex mathematical model was developed to describe the heating of billets (100 mm) in a step furnace and the use of a small section steel mill Column 25 rack) on the rolling conditions. The diameter of the test rolling wire is 6.5 ~ 14mm. The heating temperature of 10 ~ 45 steel can be reduced from 1150 ~ 1200 ℃ to 1030 ~ 1100 ℃ according to the allowable load of the rack. The use of low temperature rolling and low temperature coiling ensures that the wire has sufficiently high mechanical properties that it is possible to reduce the heat treatment time or to completely cancel the heat treatment. Sorbite can be achieved when the organization of the best combination of strength and plasticity, and the formation of sorbite temperature range, for 10 to 20 steel is corresponding to the coiling temperature of 580 ~ 650 ℃. In this situation