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Применить Всего найдено 2. Отображено 2.
28-09-2011 дата публикации

Molten iron desiliconizing reagent and molten iron desiliconizing method

Номер: CN0102199685A
Автор: HAOYU ZHENG, WENJIE XU, XINGYUAN JIANG, ZHENGHUI TONG, ANDONG LI, ZHENG HAOYU, XU WENJIE, JIANG XINGYUAN, TONG ZHENGHUI, LI ANDONG
Принадлежит:

The invention discloses a molten iron desiliconizing reagent and a molten iron desiliconizing method. The molten iron desiliconizing reagent comprises the following components in part by weight: 10 to 20 parts of mixed acid ferric oxide powder, 15 to 25 parts of shot blasting dedusting powder, 10 to 20 parts of stainless steel making dedusting ash and 40 to 60 parts of hot rolling ferric oxide scale. The molten iron desiliconizing reagent can be used all molten iron pretreatment processes and has high desiliconizing capacity; meanwhile, chrome- and nickel-containing solid oxides are used in the formula, the nickel content in the molten iron at the end of desiliconization is slightly improved by 5 to 8 percent on the basis of the original nickel content, so that for smelting stainless steel, the added amount of nickel during smelting in a subsequence process can be reduced correspondingly and the production cost can be lowered; and all raw materials in the formula are from chrome- and nickel-containing ...

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Номер записи: 1
27-06-2023 дата публикации

Logging curve depth correction method and device based on activity and variance transformation

Номер: CN116335639A
Автор: FENG YU, PEI JIANYA, WANG QIAN, CAI BING, TONG ZHENGHUI, ZHANG DONGFANG, LI RUIFENG, BAO LEIGANG, ZHU XIAOMENG, GONG HUA
Принадлежит:

The invention relates to a logging curve depth correction method and device based on activity and variance transformation, and the method comprises the steps: obtaining a logging curve, and carrying out the sampling interval unification processing of the logging curve; calculating an activity curve of the natural gamma curve, and selecting a calibration well section on the activity curve; selecting a comparison well section on the pre-casing open hole well gamma curve; sliding the calibration well section at a first preset length on the comparison well section, and calculating the Euclidean distance of the overlapped part of the two well sections; selecting a minimum Euclidean distance in all Euclidean distances to obtain an optimal depth correction value of the curve; and performing depth correction on an isotopic tracing curve and a well temperature curve by using the reference magnetic positioning curve. The problems that during curve depth correction in the prior art, the peak position ...

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Номер записи: 2