立式真空淬火炉设计说明书.docx

课程设计

立式真空淬火炉设计说明书
（PFTH700/1600型）

第一章前言
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目录

第一章前言············································3
第二章设计任务说明 ···································4
第三章确定炉体结构和尺寸·······························5
3.1炉膛尺寸的确定 ······································5
3.2炉衬隔热材料的选择 ································5
3.3各隔热层、炉壳内壁的面积及厚度 ····················6
3.3.1隔热屏 ············································6
3.3.2炉壳内壁 ·········································7
第四章炉子热平衡计算 ································9
4.1有效热的计算 ······································9
4.2无热功的计算 ······································9
4.3结构的蓄热量 ······································12
4.4炉子功率的验证 ······································14
第五章电热元件的选择及布置·····························15
第六章工件进出料传送装置设计 ··························18
第七章其他部件的设计计算 ·····························19
7.1淬火油槽的设计·······································19
7.2冷却系统设计 ·······································20
7.2.1冷却水消耗计算 ····································20
7.2.2确定水在水壳内的经济流速和当量直径 ···············21
7.2.3球对流热换系数 ··································21
7.2.4验算水冷炉壁得温度(℃) ·························21
7.2.5冷却水的管道设计 ·······························21
7.2.6水冷系统的安全保护 ·······························22
7.3水冷电极 ···········································22
7.4观察窗 ···········································22
7.5热电偶测温装置 ·····································22
7.6风扇 ··············································23
7.7真空放气阀、真空安全阀 ····························23
7.8法兰设计 ···········································23
第八章真空热处理炉真空系统的设计 ···················24
8.1根据设计技术条件,确定真空系统方案 ················24
8.2真空炉必要抽速计算 ·······························24
8.3根据炉子必要抽气速率选择主泵 ······················25
8.4选配前级真空泵 ·····································25
8.5确定真空系统管及配件尺寸 ·························26
第九章真空热处理的优点 ·······························27
第十章真空热处理炉特点 ·······························28
第十一章参考文献 ·····································29

第一章前言
真空热处理技术是随着国防尖端工业、精