黑龙江八一农垦大学《食品机械与设备》课程论文食品真空包装机学生姓名：武艳琴学号：20094061125指导教师：杨宏志所在学院：食品学院专业班级：09级食品科学与工程一班中国·大庆2011年9月第1页共14页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共14页目录前言................................................................................................................................................................................21国内外食品真空包装机的研究..............................................................................................21.1国内食品包装机的生产现状及发展趋势.........................................................................................................21.2国外食品包装机的发展趋势..............................................................................................................................42食品真空包装机的分类.......................................................................................................43食品真空包装机的部件组成及工作原理.................................................................................53.1食品包装机的组成................................................................................................................................................53.1.1上、下真空室与密封圈.................................................................................................................................63.1.2热压封口装置与印字装置............................................................................................................................63.1.3真空泵、真空表和真空电磁阀…………………………………………………………………63.1.4时间继电器、变压器和交流接触器……………………………………………………………63.2工作原理作用机理..............................................................................................................................................64工作流程....................................................................................................................................................................94.1真空..........................................................................................................................................................................94.2热封........................................................................................................................................................................104.3回气........................................................................................................................................................................104.4循环........................................................................................................................................................................105真空包装机的特点............................................................................................................106选用原则........................................................................................................................107食品真空包装机应用领域.................................................................................................118结论...............................................................................................................................11[参考文献].........................
