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通过预先制定的检验方案,将盘条的化学成分作为唯一的对比基准,对比了盘条与对应不同时间段的中间包钢液及盘条与对应钢坯的C,Si,Mn 3大元素的检验偏差,考虑了各类随机误差的影响,引入了数理统计的正态分布理论,对化学成分存在的不同偏差的分布规律进行了详细分析,推算了两种不同检验方案中存在的检验偏差范围,并根据此两种检验偏差结果,导出了中间包钢液与钢坯化学成分之间存在的细微偏差的规律,为最终盘条化学成分的准确控制提供了参考依据。
Through the pre-established inspection program, the chemical composition of the wire rod is taken as the sole reference to compare the inspection of the C, Si, Mn 3 large elements of the wire rod and the corresponding billet and the corresponding billet for different time periods Deviation, taking into account the impact of various types of random errors, the introduction of mathematical statistics of the normal distribution theory, the chemical composition of the distribution of different deviations have been analyzed in detail, projected two different test programs exist in the test deviation range, According to the results of these two kinds of test deviations, the law of subtle deviation between the chemical composition of the molten steel in the tundish and the billet is derived, which provides a reference for the accurate control of the chemical composition of the final coil.