- 上一篇：年产1万吨聚四氟乙烯车间工艺设计
- 下一篇：奉贤部分地区土壤重金属污染现状及修复研究
In the process stage, there’s two parts, preparation and extrusion molding.Before molding,, steps including drying sieving, weighing, transportation and high speed mixing are needed before further processing into the extruder. After molding is ready, then steps including extrusion, molding, cooling stereotypes, pulling and cutting are needed to get the final products.
After way of production is chosen to use twin-screw extruder, series of screw parameters can be decided according to the specifications of the pipe, such as ccrew diameter, aspect ratio, segmentation, compression ratio and rotational speed. At the same time, the preliminary equipment for each process can be decided. Finally, the optimal operating point of the extruder has been calculated.
At the stage of equipment selection, device suitable for the U-PVC pipe has been deceided according to the processing way of the craftwork, as well as the technical parameters, prices and manufacturers.
At the stage of material balance, the number of extrusion can be calculated by the annual workdays and ability of production. And according to the formulation ratio of the production capacity, the feeding amount is calculated, as well as the amount of loss, waste and final amount. At the same time, three shifts of work and production of each class has been worked out.
目录
1 绪论 1
1.1 文献综述 1
1.1.1 常见管材的类型及应用 1
1.1.2 化工用管的常见类型及特点 2
1.1.3 PVC管材的特点及应用 3
1.1.4 硬PVC化工用管及其特点 5
1.2 设计的目的和意义 6
1.3 本设计产品规格 6
2 配方设计 7
2.1 树脂的选择 7
2.1.1 树脂与塑料的关系与分类 7
2.1.2 聚氯乙烯树脂的型号 8
2.1.3 聚氯乙烯的选用 10
2.1.4 本设计中树脂的选用 11
2.1.5 技术参数 11
2.2 热稳定剂 12
2.2.1 品种与性能 12
2.2.2 聚氯乙烯的热稳定剂 12
2.2.3 选用的热稳定剂 13
2.2.4 技术参数 13
2.3 加工助剂 14
2.3.1 配方与实效 14
2.3.2 选用的加工助剂 15
2.3.3 技术参数 16
2.4 润滑剂 16
2.4.1 润滑剂的分类 16
2.4.2 选用润滑剂的品种与性质 17
2.4.3 技术参数 18
2.5 填充剂 18
2.5.1 填充剂的分类 18
2.5.2 填料在塑料中的应用 19
2.5.3 填料在硬PVC中的应用 19
2.5.4 技术参数 20
2.6 配方 20
3 工艺流程 21
3.1 工艺流程图 21
3.2 工艺流程说明 21
3.3 成型前的准备 22
3.3.1 树脂的干燥 22
3.3.2 树脂的过筛 22
3.3.3 树脂的输送 23
-
年产50万吨乙二醇项目厂址选择与经济分析
-
年产12万吨二甲醚合成工艺设计+CAD图纸
-
年产300kg吡啶丁磺酸硫酸盐的工艺设计+CAD图纸
-
年产100万吨对二甲苯项目工艺设备选型
-
年产60万吨PX项目的分离工...
-
年产100万吨PX工艺系统集成...
-
Aspen年产100万吨对二甲苯的...
河岸冲刷和泥沙淤积的监测国内外研究现状
当代大学生慈善意识研究+文献综述
杂拟谷盗体内共生菌沃尔...
中考体育项目与体育教学合理结合的研究
大众媒体对公共政策制定的影响
乳业同业并购式全产业链...
java+mysql车辆管理系统的设计+源代码
十二层带中心支撑钢结构...
酸性水汽提装置总汽提塔设计+CAD图纸
电站锅炉暖风器设计任务书