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Aluminum Copper Co., Ltd. in, based on the production process and select the appropriate main and auxiliary equipment, first developed smelting process, according to the zinc-nickel alloy with the composition ratio and the amount of melting and burning of old material delivery, the ingredients, the calculated put the amount of the main component, and then develop deformed system, including pressure system, the speed system, the tension system and roller-type system (as cold, so no temperature regime); using VB program to calculate the rolling force (because it is cold , stone used in the calculation formula), rolling torque and the total torque motor pumping; and for two and four-high rolling mill rolls for roll strength, four-high mill stands strength capability and auxiliary equipment check; Secondly main workshop technology assessment (including the calculation of yield and mill hour production). At the same time the use of CAD drawing roll chart, plant layout chart and roll bending moment diagram and rolling rhythm chart.
According to the present investigation, the production process due to the product defect (alloy chemical composition, casting, chemical, etc.) caused the yield greatly reduced, and thus I made according to the relevant topic defect investigation and developed various defects causes and control, preventive measures in order to improve the yield of products to meet market demand.
Keyword：Nickel silver strips, product design, defects, preventive measures
目录
1 绪论 1
1.1 概述 1
1.2 国内外铜板带材生产现状 2
1.3 设计项目提出背景 5
1.4 设计原则 5
2 市场分析（行业背景） 6
2.1 世界铜板带材的消费 6
2.2 国内外铜板带的需求 6
3 主要生产工艺和设备简介 8
3.1 主要生产工艺及工序 8
3.2 设备简介——主、辅设备 9
4 工艺制度制定 13
4.2 轧制制度制定 14
4.2.1 压下制度 14
4.2.2 速度制度 17
4.2.3张力制度 19
4.2.4辊型制度 20
5 力能参数的计算 24
5.1轧制力的计算 24
5.2 轧制力矩和传动总力矩计算 24
6 设备强度及电机能力的校核 37
6.1轧辊强度校核 37
6.2 电机能力校核 41
6.3 轧机机架强度校核 43
7 车间主要技术指标的考核 45
7.1成品率的计算 45
7.2轧机小时产量 45
8 生产车间平面工艺布置 47
8.1车间平面布置的原则 47
8.2金属流程线的确定 47
8.3主要设备间距的确定 47
9 锌白铜带的产品缺陷及防止措施 49
9.1工艺造成缺陷的成因及控制 49
9.1.1合金成分控制不好引起的缺陷及控制 49
9.2铸造工艺控制不好造成的缺陷及控制 49
9.2.1 中间裂纹及控制 49
9.2.2 冷隔及控制 50
9.2.3 拉漏及控制 50
9.2.4 夹渣及控制 50
9.3 化学作用造成缺陷及控制 51
9.3.1 中间气孔及控制 51
9.3.2 皮下气孔及控制 51