A kind of negative pressure sealing packaging method

Abstract

The invention belongs to the field of aviation ammunition, and in particular relates to a negative pressure sealing and packaging method. First, attach the outer edge of the air cushion to the interface between the inner surface of the sealed package and the air pumping device, and conduct an airtightness test on the sealed package; The packaged object establishes an airflow channel through a cushion of air, and the four grooves allow the surrounding gas to circulate, ensuring that the gas can be continuously extracted; the negative pressure sealing packaging method of the present invention improves the working efficiency of negative pressure pumping, and it is convenient to store in a negative pressure seal. Measure the air pressure value inside the package and observe the internal gas humidity.

Description

technical field [0001] The invention belongs to the field of aviation ammunition, and in particular relates to a negative pressure sealing and packaging method. Background technique [0002] Negative pressure sealing packaging is a commonly used packaging technology for equipment moisture-proof packaging at present. The equipment is sealed and packaged with low moisture permeability materials to isolate the equipment from the outside natural atmosphere, so as to prevent or delay the rust and mildew of the equipment during storage and transportation, thereby avoiding moisture, Corrosion and mold growth, and regular maintenance is required during storage and transportation to achieve the purpose of long-term sealing of equipment. [0003] When storing products, the negative pressure sealed packaging needs to be pumped to make the inside of the sealed package vacuum. The existing operation method is to directly connect the pumping equipment to the sealed packaging interface for...

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Problems solved by technology

[0003] When storing products, the negative pressure sealed packaging needs to be pumped to make the inside of the sealed package vacuum. The existing operation method is to directly connect the pumping equipment to the sealed packaging interface for vacuuming. Due to the effect of atmospheric pressure, the inner surface of the package will be damaged. The air extraction part is closely attached to the packaged object, which hinders the flow of air inside the package, causing inconvenient operation and time-consuming troubles during the air extraction process; during sealed storage, if you need to observe the air pressure or humidity inside the package, connect the corresponding equipment directly When, the accuracy of the measurement will also be affected due to the tight fit between the sealed package and the packaged object

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