Синхронізація роботи клітей чорнової групистану 1700 ПрАТ «ММК ім. ІЛЛІЧА»
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Дата
2018
Автори
Курпе, О. Г.
Кухар, В. В.
Kurpe, O. G.
Kukhar, V. V.
ORCID
DOI
https://doi.org/10.31498/2225-6733.37.2018.160226
Назва журналу
Номер ISSN
Назва тому
Видавець
Приазовський державний технічний університет
Анотація
В роботі розроблена технологія синхронізації клітей чорнової групи стану 1700 за рахунок розподілу режимів обтиску. Розроблена технологія дозволяє збільшити ва-гу рулонів на проміжному етапі реконструкції стану 1700 з 9 т до 15,83 т. Вико-нано розрахунок максимальної довжини слябу товщиною 150 мм, яка становить 9320 мм і яку можна використовувати для впровадження технології синхронізації на стані 1700. Подальше збільшення довжини слябу призведе до необхідності до-даткової синхронізації роботи клітей NoNo2-3-4. Виконано розрахунок необхідної потужності двигунів синхронізованих клітей з врахуванням навантаження під час знаходження розкату одночасно у двох клітях. Необхідна потужність двигунів не перевищила встановлене проектом обмеження у 8000 кВт.
The con-stant increase in consumers’requirements as well as continuous upgrading made by the leading manufacturers of steel products form the target proper quality of steel products. At present the requirements on the steel products have already exceeded the standards re-quirements. So, the increased requirements on the hot-rolled coils may include the limita-tion on the minimal weight. For example, some manufactures utilize coils weighing from 18 t to 30 t. Limitation on telescoping, for example, must not exceed 20mm or 10mm; limita-tion on width tolerance must not exceed ½-¼ of standard requirements; the requirements on mechanical properties are increased as well. Within the current operating conditions of the1700 mill the short distance between the roughing group stands is the significant tech- nical limitation in coils weight increase. Thus, the weight of coils can be increased after synchronization of speed parameters of the roughing group stands. In this paper, the tech-nology of synchronization of the roughing group stands at the1700rolling mill has been de-signed due to the roughing schedule distribution. The developed technology makes it possi-ble to increase the weight of coils from 9 tons to 15,83 tons for the intermediate stage of the1700 mill reconstruction. The calculation of the maximum length for 150 mm thickness slab has been performed and it makes 9320 mm. This length can be used for the implemen-tation of the synchronization technology at the1700 mill. Further increase in slab length will result in the necessity of additionaloperation synchronization of stands NoNo2-3-4. The required motors output calculation of the synchronized stands has been performed tak-ing into account the load while the slab is within the two stands simultaneously. The re-quired motor output has not exceeded the designed limit in 8000kW.
The con-stant increase in consumers’requirements as well as continuous upgrading made by the leading manufacturers of steel products form the target proper quality of steel products. At present the requirements on the steel products have already exceeded the standards re-quirements. So, the increased requirements on the hot-rolled coils may include the limita-tion on the minimal weight. For example, some manufactures utilize coils weighing from 18 t to 30 t. Limitation on telescoping, for example, must not exceed 20mm or 10mm; limita-tion on width tolerance must not exceed ½-¼ of standard requirements; the requirements on mechanical properties are increased as well. Within the current operating conditions of the1700 mill the short distance between the roughing group stands is the significant tech- nical limitation in coils weight increase. Thus, the weight of coils can be increased after synchronization of speed parameters of the roughing group stands. In this paper, the tech-nology of synchronization of the roughing group stands at the1700rolling mill has been de-signed due to the roughing schedule distribution. The developed technology makes it possi-ble to increase the weight of coils from 9 tons to 15,83 tons for the intermediate stage of the1700 mill reconstruction. The calculation of the maximum length for 150 mm thickness slab has been performed and it makes 9320 mm. This length can be used for the implemen-tation of the synchronization technology at the1700 mill. Further increase in slab length will result in the necessity of additionaloperation synchronization of stands NoNo2-3-4. The required motors output calculation of the synchronized stands has been performed tak-ing into account the load while the slab is within the two stands simultaneously. The re-quired motor output has not exceeded the designed limit in 8000kW.
Опис
Ключові слова
синхронізація клітей , режим обтиску , гарячекатані рулони , технологія прокатки , стан 1700 , stands synchronization , roughing , hot rolled coils , rolling technology , the 1700 rolling mill
Бібліографічний опис
Курпе О. Г., Кухар В. В. Синхронізація роботи клітей чорнової групистану 1700 ПрАТ «ММК ім.ІЛЛІЧА». Серія: Технічні науки. Вісник Приазовського державного технічного університету. 2018. № 37. С. 29–34.