周期式作业热处理电炉的设计+CAD图纸
时间:2018-05-05 10:21 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：金属热处理是将金属工件放在一定的介质中加热到适宜的温度，并在此温度中保持一定时间后，又以不同速度在不同的介质中冷却，通过改变金属材料表面或内部的显微组织结构来控制其性能的一种工艺。为使金属工件具有所需要的力学性能、物理性能和化学性能，除合理选用材料和各种成形工艺外，热处理工艺往往是必不可少的。在工业如此发达的今天，电已被广泛运用于各行各业，其作为可控的清洁能源，也同样适用于热处理工艺，且不会产生大量烟气，能有效地降低烟气带走热量的损失。本文就是进行周期式作业热处理电炉的设计，包括炉温制度和加热时间的计算；炉膛尺寸的确定；按照热平衡法进行安装功率的计算；炉体砌筑材料和尺寸的确定、钢架结构的确定；电热体的设计计算等设计步骤。22241 毕业论文关键词：热处理；电阻炉；加热时间；安装功率 The Design of Periodic Heat Treatment Furnace Abstract: Metal heat treating metal parts are placed in the medium is heated to a certain temperature suitable and maintained at this temperature for a certain time on, he cooled at different speeds in different media, by changing the microstructure of the metal surface or inside a process to control its performance. For the metal workpieces having the desired mechanical properties, physical properties and chemical properties, in addition to the rational use of materials and a variety of forming processes, the heat treatment process is often essential. Now industry is so advanced, electricity has been widely used in various industries, clean energy as a controllable, also applies to the heat treatment process, and does not produce a lot of smoke, can effectively reduce the flue gas heat away loss. This article is the design of conduct periodic job type heat treatment furnace, including computing systems and furnace heating time; furnace size is determined; installed power calculated in accordance with the heat balance method; determine furnace masonry materials and determine the size, steel structures ; design and calculation of heating the body, such as design steps. Keywords: heat treatment; resistance furnace; heating time; install power 目 录 1绪论 1 1.1 课题的目的和意义 1 1.2 国内外研究现状与水平 1 1.3 发展趋势 3 1.4 调研情况 4 1.4.1热处理设备配置 4 1.4热处理设备功能简述 5 2电阻炉炉型 6 2.1 辐射式电阻炉 6 2.2 对流式电阻炉 6 2.3 电极盐浴炉 6 2.4 硝盐炉 6 2.5其他类型炉 6 3设计计算 8 3.1电阻炉炉型设计 8 3.1.1 室式电阻炉 8 3.1.2 台车式电阻炉 8 3.1.3 箱式电阻炉 8 3.2热处理工件基本参数及炉型确定 9 3.2.1 原始条件及数据 9 3.2.2 炉型选择 9 3.3加热周期计算 10 3.3.1 加热时间的计算 10 3.3.2 保温时间的计算 12 3.3.3 总加热时间的计算 12 3.4确定炉体结构和尺寸 13 3.4.1 炉底长度、宽度以及炉膛高度的确定 13 3.4.2 炉衬材料及厚度的确定 13 3.5砌体平均表面积计算 14 3.5.1 炉顶平均面积 14 3.5.2 炉墙平均面积 14 3.5.3 炉底平均面积 15 3.6计算炉子功率 15 (责任编辑：qin) |