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在冷轧硅钢片生产中热处理温度、气氛对性能有很重要的影响。为了深入了解在不同纯度氢气或真空中最后退火以及退火温度对冷轧取向硅钢片磁性能的影响,进行了下述一系列试验,并对试验结果进行了讨论。一、试验方法试验坯料用鞍山平炉钢(代号A),太原电弧炉钢(580和C693)以及本院电弧炉钢(109号)的2.2毫米厚热轧板(化学成分见表1),在空气中830℃预退火5小时后酸洗,经4～6道冷轧至0.7毫米,在850℃氢气中退火3小时并进行炉冷。第二次经8～10道冷轧到0.35毫米成品厚度
In the cold-rolled silicon steel sheet heat treatment temperature, the atmosphere has a very important impact on performance. In order to understand the effect of the final annealing in different purity hydrogen or vacuum and the annealing temperature on the magnetic properties of cold-rolled oriented silicon steel, the following series of tests were conducted and the test results were discussed. First, the test method Test billet with Anshan Ping Furnace steel (code A), Taiyuan arc furnace steel (580 and C693) and the hospital arc furnace steel (109) 2.2 mm thick hot-rolled sheet (chemical composition shown in Table 1) Air pre-annealed at 830 ° C for 5 hours, pickled, cold-rolled to 0.7 mm after 4 to 6 passes, annealed in hydrogen at 850 ° C for 3 hours and furnace-cooled. The second time by 8 to 10 cold rolled to 0.35 mm finished thickness