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1.前言为满足市场需要,改进厚板产品质量,我公司2000mm热轧机改造项目中把开口度从300mm增大到400mm是非常关键的技术。开口度增加的方法涉及到改造成功与否和改造费用等诸方面,因此选择增加开口度的最佳方案是热轧改造的重点之一。经多次与国内外专家进行技术交流,并在查阅大量资料的基础上,认为热轧机增大开口度的方案有以下几种: 方案一、提升牌坊。方案二、机列上所有设备的标高均降低或提升。方案三、使用长行程液压缸。方案四、采用超薄液压缸。方案五、使用
1. Foreword In order to meet the needs of the market and improve the quality of heavy plate products, it is a key technology to increase the opening degree from 300mm to 400mm in our 2000mm hot rolling mill reconstruction project. The method of increasing the opening degree involves the success of the transformation or the cost of renovation. Therefore, choosing the best solution to increase the opening degree is one of the focuses of the hot rolling transformation. After many technical exchanges with domestic and foreign experts, and access to a lot of information on the basis of the hot rolling mill that increase the opening of the following programs: program one, to enhance the arch. Option two, all the equipment on the plane are lower elevation or upgrade. Program three, the use of long-stroke hydraulic cylinder. Program four, using ultra-thin hydraulic cylinder. Program five, use