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低碳薄钢板优良的深冲性能取决于其所具有的再结晶织构类型及其强弱。在低碳钢中加入适量的钛,就能形成强的有利于薄板深冲性能的再结晶织构(平行于轧面的(111)织构)。研究不同的钛含量(因而也是不同的钛碳比)及钢中生成的弥散相TiC对织构的影响,对生产优良深冲性能的薄板将有重要意义。一、试验材料及试验方法试验材料是平炉冶炼的低碳钛钢,钢水用铝脱氧后再加入钛铁,以提高钛的收得率。钢锭于1380～1390℃均热2小时后轧成板坯,板坯于1240～1300℃加热2小时后,经二辊、万能、连轧机轧成板卷,连轧机开轧温度约为980～1020℃,终轧温度约为830～850℃,轧后约在730～760℃卷取。在热轧板卷上取样。钢的化学成分及热轧板处
The excellent deep drawability of low carbon steel depends on the type of recrystallized texture and its strength. Addition of a suitable amount of titanium to low carbon steels results in a strong recrystallized texture (parallel to the (111) texture of the nip) that is strong in favor of deep drawability of the sheet. Studying the effects of different Ti contents (and hence different Ti / C ratios) and the TiC phase of the dispersed phase produced in the steel on the texture will have important implications for the production of thin sheets with good deep drawing properties. First, the test materials and test methods The test material is a flat furnace smelting low-carbon titanium steel, aluminum deoxidation after adding ferrotitanium to increase the yield of titanium. The ingot is rolled into a slab at a heating rate of 1380-1390 ° C for 2 hours, the slab is heated at 1240-1300 ° C for 2 hours, and then rolled into a coil through a two-roll, universal and continuous rolling mill, 1020 ℃, finishing temperature is about 830 ~ 850 ℃, about 730 ~ 760 ℃ after rolling coiling. Sampling on hot rolled coil. The chemical composition of steel and hot-rolled plate office