瓶封

本文详细论述了SF842型四旋瓶封罐机的设计，包括工作原理、机器结构和设计计算等。

In the thesis design of Lid seamer for twist off jar type SF842 is discussed in detail , which include principle of operation , machineostructure and design calculation , ect .

如果啤酒瓶漏封、密封不严，瓶内二氧化碳损失和空气含量增加会使啤酒变腐，这将极大地影响啤酒质量和消费者的信心。

If the beer bottle is with no bottle cap or incorrect sealing , the carbon dioxide of the bottle will miss , and the content of oxygen will increase , which can influence the quality of beer and the confidence of consumer .

用铝塑薄膜双层包装或棕色玻瓶（蜡封）防潮效果较好，可用于碘化酪蛋白的包装。

In damp environment , it had strong moisture absorption ability , so aluminum foil and PVC double package or brown glass bottle should be used to store it .

对塑料瓶的电磁成形封接工艺进行研究。

This paper introduces the research of electromagnetic forming sealing for the plastic bottle .

红外探测器金属杜瓦瓶锗窗口低温封接技术

Low Temperature Soldering Technique for Sealing the Ge Window on Metal Dewar of IR Detector

低温泵缸套柱塞防磨损和提高密封性的措施红外探测器金属杜瓦瓶锗窗口低温封接技术

Measures taken to prevent abrasion of the plunger in cylinder sleeve of a cryopump and to improve sealing performance Low Temperature Soldering Technique for Sealing the Ge Window on Metal Dewar of IR Detector