19世纪下半叶欧洲炼钢技术的进步要求轧制更大吨位的钢锭,无论是灰铸铁或冷硬铸铁轧辊的强度均已不能满足要求。含碳量为0.4%~0.6%普通铸钢轧辊相应诞生。重型锻压设备的出现更使这种成分的锻造轧辊的强韧性得到进一步提高。
In the second half of the nineteenth Century, the progress of steelmaking technology in Europe requires larger tonnage steel ingots to be rolled. Neither the strength of gray iron or chilled cast iron rolls can meet the requirements. The ordinary cast steel roll with a carbon content of 0.4% to 0.6% is born accordingly. The emergence of he***y forging equipment makes the strength and toughness of the forging roll of this component further improved.
轧辊的分类方法有多种,主要有:(1)按产品类型分有带钢轧辊、型钢轧辊、线材轧辊等;(2)按轧辊在轧机系列中的位置分有开坯辊、粗轧辊、精轧辊等;(3)按轧辊功能分有破鳞辊、穿孔辊、平整辊等。
There are many classification methods like roller are: (1) according to the type of product with strip roller, steel roller, wire roller; (2) according to the roll in rolling mill series in the of divided blooming rolls, roughing roll, finishing roll; (3) according to the function of a roller descaling Kong Gun, wearing roller, flat roll etc.
常用的轧辊材质和用途见表。轧辊的性能和质量一般取决于其化学成分和制造方式并可由其***、物理和力学性能以及存在于轧辊内部的残余应力类型来评估(见轧辊检验)。
The material and use of the commonly used rolls are shown in the table. The performance and quality of roller generally depend on its chemical and manufacturing way, and can be evaluated by its organization, physical and mechanical properties and the type of residual stress existing inside the roll (see roll test).
修正精度高,涂层厚度从几微米到几毫米,可对金属工件呈现磨损、划伤、、裂纹、破损变形、硬度降低、损害等缺点进行堆积、封孔、补对等修正功用,只须打磨、抛光,也可进行车、铣、 刨、磨等各类机械加工,以及电镀等后期加工。
The thickness of the coating is high, and the thickness of the coating is from several micr*** to a few millimeters. It can be worn, scratched, pinholes, cracks, breakage and deformation, hardness reduction, damage and other shortcomings to accumulate, seal, and compensate for the defects, such as grinding, polishing, milling, milling, grinding and other kinds of mechanical processing, as well as electroplating later processing.
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