52×52-50.6×￠27mm304异形管工艺设计(2)
Cold drawing process has empty brandy drawing, long sunk drawing, fixed short sunk drawing, floating sunk drawing and expanding drawing. Because of the special size and precision of cold drawing hydraulic pipe, fixed short sunk drawing is used here. Drawing process, which should be resolved to determine drawing, choose pulling machine tonnage to develop a series of brandy tabulation process norms. The support process after drawing has the same effect on the quality of pipe, including Hammering, pipe pickling, heat treatment, such as lubrication.
Finally, the technical and economic indicators should be decided to determine the hours of productivity, work time, Yield, effective working hours and staffing.Through a series of process design, the end-all technical difficulties is solved .Through check and states that calculation of the production is feasible.
Through this tube for drawing hydraulic design of the curriculum design, I follow the principle of seeking truth from facts. Though in the process of designing around a lot of detours, but through these detours Let me be more specific understanding integrity of the entire production process of seamless steel pipe and concrete details, also training independent thinking and problem-solving abilities.
Keyword: Special tube; hot rolling; cold drawing; process design
目录
设计总说明 I
1文献综述 1
1.1 世界无缝钢管生产状况及进展 1
1.2 国内无缝钢管生产状况及最新发展 1
1.2.1 我国无缝钢管行业生产发展与表观消费现状 1
1.2.2 我国无缝钢管行业产能建设现状 2
1.3异型钢管概述 3
1.3.1异型钢管的特点： 3
1.3.2异型钢管的用途： 3
2 现场工艺设备相关情况的介绍 4
2.1上海宝钢集团有限公司生产现状 4
2.2上海宝钢钢管厂设备情况 4
2.2.1 新环形炉： 4
2.2.2 1000吨剪切机： 5
2.2.3打头机: 5
2.2.4冷拔机 5
2.2.5热处理炉 5
2.2.6轧头设备： 6
2.2.7酸洗槽： 6
2.2.8磷化槽： 6
2.2.9皂化： 6
2.2.10切管机： 6
2.2.11矫直机： 6
2.2.12 100穿孔机： 7
2.2.13链式冷床 7
2.2.14吊车（桥式） 7
3 生产工艺步骤的确定 9
3.1工艺流程的确定 9
3.2工艺步骤的选定 9
3.2.1 热轧部分 9
3.2.2 冷拔部分 9
4 工艺设计 10
4.1原料选择 10
4.2管坯准备 10
4.3 管坯加热 10
4.4变形制度 11
4.4.1 热加工部分 11
4.4.2 冷拔部分 11
4.5 工具设计和选择 12
4.5.1穿孔机 12
4.5.2冷拔机 16
4.6 轧制表和拔制表编制 19
4.6.1轧制表 19
4.6.2拔制表 19
4.7速度制度计算 19
4.7.1 斜轧穿孔机 19
4.7.2冷拔机 20
4.8 轧制节奏和轧制进程表 20
4.8.1.穿孔机 20
4.8.2冷拔部分 21
5 热轧部分工艺可行性计算和校核 24
5.1咬入能力计算和校核 24
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