年产量1万件QQ3汽车用PP前保险杠注射成型工艺设计（全套图纸）.doc

年产量1万件QQ3汽车用PP保险杠注射成型工艺设计 摘 要 20世纪90年代以来．世界汽车工业，特别是中国汽车工业不断发展，汽车产量持续增长。随着汽车普及率迅速提高，减轻车身质量、节能降耗及降低成本已成为汽车工业发展的主要目标之一。奇瑞汽车作为民族品牌率先推出QQ系列微型车，其中QQ3最为成功。因其外型时尚以及市场保有量、市场需求量比较大，更重要的享受国家节能环保补贴价格上有很大优势，所以生产前景比较好。本设计工艺为奇瑞QQ3前保险杠，针对该产品的选材、设计原理、生产工艺、生产设备选择、以及工厂运作有详细介绍。本设计选用聚丙烯(PP)为主要原料，注射设备为宁波海达公司生产HDX-2500T型号，设计了年产量为1万件奇瑞QQ3汽车用PP前保险杠注射成型工艺。主要研究内容包括：汽车保险杠的作用，材质的种类及选择，聚丙烯材料的性能及在保险杠上的应用，工艺工程的物料计算及热量衡算，及辅助设备，车间、厂房的布局、水电管路的排列，企业经济效益核算等。 关键词：聚丙烯，工艺，性能，物料衡算  ABSTRACT Since the 1990s, the worlds automotive industry wrere ever-accelerated , esp.in China, the auto output had a sustained growth of late years. Along with the rapid increase in penetration relieve body quality, saving energy and reducing consumption, and reduce cost has become one of the main goals of automotive industry development. Chery automobile as a national brand to launch QQ mini series, one of most successful QQ3.Because of its appearance fashion and market ownership, market demand is bigger, it is more important to enjoy the national energy conservation and environmental protection subsidies price has the very big advantage, so the production outlook is bette The design process for the chery QQ3 front bumper, for the product selection, design principle, selection, production technology, production equipment and plant operations has introduced in detail.r. This design choose polypropylene (PP) as the main raw material, injection equipment for ningbo haida company production HDX - 2500 t models, designed annual output to 10000 chery QQ3 PP front bumper cars use injection molding process. Main research contents include: the role of car bumper, material type and options, the performance of the polypropylene material and the application in bumper, process engineering material calculation and heat balance, and ancillary equipment, the arrangement of the layout of the workshop, workshop, water and electricity piping, enterprise economic benefit calculation, etc KEY WORDS: PP，Technology，Performance，Material bal前　言 1 第1章