Transactions of Materials and Heat Treatment

Title：Energy-saving improvement of oil injection system in hydraulic station for 360 MN extrusion press

Authors： Sun Hao Lei Bingwang Chen Liang Dong Wujie Wang Ruibo

Unit： Special Steel Division Inner Mongolia North Heavy Industries Group Corp. Ltd.

KeyWords： 360 MN extrusion press hydraulic oil injection system initial pressure machine learning energy saving

ClassificationCode：TH137

year,vol(issue):pagenumber：2025,50(3):181-188

Abstract：

Aiming at the problems of high energy consumption and low energy utilization of the existing 360 MN extruder, the energy-saving measure was put forward by reducing the initial pressure of oil injection system for hydraulic station, and based on the characteristics of extruder equipment and extrusion process, the energy flow model for the forming process of extruder was established to analyze the loss mechanism of energy transfer process. Then, it was analyzed that the mismatch between installed power and load demand power and low energy transfer efficiency were the main reasons for the high energy consumption of extruder, and it was proposed that improving matching efficiency was the most effective way to save energy and reduce consumption in the hydraulic system. Furthermore, the machine learning method was used to predict the optimal pressure control parameters, and the initial pressure value of the oil injection system was optimized in combination with the characteristics of the equipment operation process. Finally, the results of the model calculation were applied to the oil injection system of extruder, and the execution effect and energy saving of the scheme were analyzed. The results show that after the improvement, the standby power is reduced from 736.83 kW to 497.42 kW, a decrease of about 32.5%. The research results have guiding significance for reducing the energy consumption of extruders and upgrading the extrusion equipment.

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作者简介：孙浩（1982-），男，硕士，高级工程师 E-mail：btsh1982@163.com 通信作者：雷丙旺（1966-），男，博士，正高级工程师 E-mail：leibingwang@163.com

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