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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
29-08-2023 дата публикации

Pickling annealing plate and preparation method thereof

Номер: CN116656924A
Автор: LI SHENGCUN, LIANG JIANGTAO, WANG HAOYU, MIAO CHENGLIANG, ZHANG YING, ZHOU SHAOXUAN, TIAN GUICHANG, JIANG XIAOGANG, PAN YUNLONG, WANG MEILIN, YAN HONGJIE
Принадлежит:

The invention relates to the technical field of pickling plate rear cover annealing production, in particular to a pickling annealing plate and a preparation method thereof. The method comprises the following steps: heating a plate blank to enable the plate blank to have a target temperature; the heated plate blank is rolled, technological parameters of rolling are controlled, and a hot rolled plate is obtained; under the condition of a first set temperature, the hot-rolled plate is coiled, and hot-rolled strip steel is obtained; the hot-rolled strip steel is subjected to acid pickling; wherein the acid pickling comprises withdrawal and straightening, and the elongation rate of the withdrawal and straightening is controlled; and under the condition of a second set temperature, cover annealing is conducted on the hot-rolled strip steel subjected to acid pickling, and the acid pickling annealing plate is obtained. The technical problem that existing automobile steel is high in manufacturing ...

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Номер записи: 1
25-04-2023 дата публикации

Processing method of cold-rolled semi-hardened steel

Номер: CN116000088A
Автор: QI HAIFENG, XU QILIANG, AN FANGLIANG, WU XIANSHENG, CHENG XIAOJUAN, ZHANG HUANYU, ZHENG YANKUN, LI RAN, LI SHENGCUN, CHA HONG-KYU
Принадлежит:

The invention relates to a processing method of cold-rolled semi-hardened steel, which comprises the following steps: respectively controlling the elongation of strip steel to be a first set value, a second set value, a third set value and a fourth set value when the strip steel is subjected to acid pickling, phosphorus breaking, leveling and withdrawal and straightening; and when the strip steel is leveled, the roughness Ra and the peak density RPpc of a working roll of the leveler are controlled to be a set Ra value and a set RPpc value. According to the method, a scale breaker, a finishing machine and a withdrawal and straightening machine are comprehensively controlled by adopting large elongation, so that the yield strength and hardness of the strip steel are improved by improving the work hardening of the strip steel, and the semi-hardening form production of the strip steel is realized; by controlling the roughness Ra and the peak density RPpc of the working roll of the temper mill ...

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Номер записи: 2
22-08-2023 дата публикации

Short-process thermal forming pickling plate and preparation method thereof

Номер: CN116618431A
Автор: WANG HAOYU, LIANG JIANGTAO, LI SHENGCUN, XIAO BAOLIANG, ZHOU SHAOXUAN, YANG JIN, TANG QIN, CUI QIUYAN, ZHANG YING, WANG JIANGONG, LIU XIAOYAN, JIA HAIYUAN, GUO JIANG
Принадлежит:

The invention relates to a short-process thermal forming pickling plate and a preparation method thereof, and belongs to the technical field of steel preparation. The method comprises the following steps: roughly rolling a plate blank to obtain an intermediate blank; the intermediate billet is subjected to finish rolling and coiling, and hot-rolled strip steel is obtained; the hot-rolled strip steel is subjected to scale breaking and acid pickling, and an acid pickling plate with the target thickness is obtained; wherein the inlet temperature of finish rolling ranges from 1,160 DEG C to 1,210 DEG C; the intermediate billet is subjected to finish rolling at the finish rolling inlet temperature of 1160-1210 DEG C, the rolling load is effectively reduced, the thin-specification hot-rolled strip steel with the thickness close to the target thickness can be obtained, the pickled plate with the target thickness can be directly obtained after acid pickling, the pickled plate can replace existing ...

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Номер записи: 3