Gas transmissibility analyzer

• Main Author: QIANG,YIN FU
• Format: Patent
• Language: English
• Published: 04.01.2006
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model provides a gas permeability analyzer which is composed of a gas permeation chamber, a gas storing container, a gas inlet pipe system, an exhausting pipe system, a micro adjusting deflating system, a vacuum testing meter and a box. The utility model has the technical points that the outer ring surfaces of an upper cover plate and a base of the gas permeation chamber are provided with a metallic knife-edge seal or a metallic arc opening seal, and the upper cover plate and the base are used for clamping a groove of a vacuum sealing rubber ring of a sample film to be measured; the upper cover plate and the base of the gas permeation chamber are connected into a whole by a tightening outer thread sleeve; the gas permeation chamber adopts an ultra-high vacuum baffle valve and an ultra-high vacuum insert plate valve; the vacuum testing meter is a capacitance thin film vacuum meter. The gas permeability analyzer has accurate tests and high precision, and can avoid the contamination brought by using a mercury manometer; the operation is convenient and the efficiency is high, and moreover, the gas permeability analyzer can test the gas penetrability of materials with high barrier properties; therefore, the gas penetrability analyzer provides an important, objective and exact supplementary instrument for the research and development of a new high-barrier material, package designing sorting and quality detection and monitoring during the production of packages.