Sealing and packaging of high-tech aviation materials of the U.S. and Russian air forces
high tech aviation materials raised, supplied and managed by the air force are one of the most important special equipment materials for the maintenance and repair of modern fighter aircraft of the aviation force. Therefore, in the process of storage, transportation, supply and other military logistics of high-tech general materials, the quality factor of sealing and packaging is becoming more and more important in the guarantee of high-tech aviation materials. This paper focuses on the methods and applications of high-tech aviation materials storage and packaging (inner packaging) in the U.S. and Russian air forces, so as to provide reference for the storage of aviation materials in our army. I. The goal of high-tech aviation materials storage of the U.S. and Russian air forces
the goal of the storage and packaging of aviation materials of the U.S. and Russian air forces is to adopt a unified, effective and economic method to protect aviation materials. On the premise of meeting military needs and ensuring 100% storage, transportation and use reliability, the sealing and packaging of high-tech aviation materials can achieve science, safety, applicability and economy, so as to optimize the overall military and economic benefits. The U.S. and Russian air forces use the ABC classification method to statistically analyze the aviation materials in stock according to their importance, value, consumption frequency, repairability, maintainability, structural technicality, etc., and determine their proportion relationship. Among them, the higher value, higher technical content, and more important high-tech aviation materials account for a considerable proportion (the number of items accounts for about 25%, while the value accounts for about 65%) as the key to manage them, Implement high-quality and high-level special sealing packaging item by item (for example, the U.S. air force adopts the highest level a sealing for high-tech aviation materials), and carry out reliable and effective storage and supply to meet the needs of aircraft operations and training.
II. The sealing and packaging method of high-tech aviation materials of the U.S. Air Force
the requirements of the sealing and packaging of high-tech aviation materials of the U.S. air force are: in any part of the world, at any time, and in the face of various possible adverse environmental conditions, the aviation materials must be in this shrinkage after arrival, which is called forming shrinkage in a serviceable state, and usually there will be no "acceptable" damage. The US air force believes that the air force weapon equipment system is becoming increasingly complex and expensive, and the proportion of high-tech products is increasing, which makes the problem of aviation material storage and packaging more difficult. These products must have a high degree of reliability in the process of use. Therefore, the requirements for the sealing and packaging system are very high. These characteristics lead to high cost specifications and regulations. It is better to go too far in terms of safety and reliability than to reduce the cost. The cross beam in the ball screw pair drives the products to be in danger. There is no acceptable risk in the development of high-tech aviation materials storage and packaging. The above view of the U.S. Air Force shows that in the storage and packaging of high-tech aviation materials, the quality and reliability of storage and packaging are more considered, and the economy is put in the second place.
the US air force adopts two standards for the sealing and packaging of aviation materials, namely, the US federal standard 102b (protection, packaging and packing levels) and mil-p116g (protection, packaging methods) of the U.S. military specification, whose purpose is to establish protection and packaging levels and specify corresponding protection, packaging methods and standards. Mil-p116g specifies the general process procedures, including cleaning, drying, applying protective agents, and using envelopes, shock pads, backing plates, and packaging containers as required; The specification also lists 14 cleaning methods, which can be specified in the contract or selected by the contractor; Specific test methods to prove that the product has been properly cleaned and five approved drying methods to remove any cleaning solution or residual moisture are proposed; Eight methods of coating protective agents are listed for selection; More detailed protective packaging methods (main packaging method and sub packaging method) are specified; Quality assurance (quality test and inspection) is specified. General aviation materials (simple in structure and not easy to be corroded and damaged) are sealed and packaged according to American federal standards without special requirements, because the cost can be reduced when the requirements are met. High tech aviation materials are required to adopt the U.S. military specifications, and the quality requirements of sealed packaging are very strict. For the sealed packaging of some specific aviation materials, the packaging data code is used in the contract to indicate the applicable packaging requirements in the contract (for example, circuit board device mil-std-726 3p/1/1/00/aa/aa/y/xx/5/d3/a/ag/ab TP3.)
III. sealing and packaging methods of high-tech aviation materials of the Russian Air Force
the requirements of the Russian air force for sealing and packaging of aviation materials during storage and transportation are clearly stipulated in the aviation material management documents. The storage, re storage and disposal of aviation materials are standardized respectively. It mainly includes the sealing, re sealing and disposal of aeroengines; Sealing, re sealing and disposal of spare parts; The year-on-year growth rates of storage, re storage, treatment and technical maintenance of aviation ordnance equipment were 21%, 17% and 24% respectively; The balance of supply and demand is ⑶ 348 tons, 116 tons and 14897 tons respectively; Sealing, re sealing and disposal of aircraft aviation equipment, radio electronic equipment, communication equipment, radio flight support equipment and testing instruments; Sealing, re sealing and disposal of airport flight support equipment; Storage and maintenance of parachute equipment; Sealing, re sealing and disposal of equipment in aviation repair shop; Sealing, re sealing and disposal of metal materials. These are collectively referred to as military technical equipment storage (storage K o H C E P A B Ц И Я)， That is, comprehensive technical measures taken by military technical equipment to prevent corrosion during long-term storage or transportation.
the basic storage methods are: use lubricating oil for storage; Use atmospheric anti-corrosion inhibitor for storage; Sealing with polymer material inhibition layer; Dry air storage; seal up. For example, the short-term (temporary) protective measures for ferrous and non-ferrous metals and their products are: using oil seal oil to prevent rust; Use working oil to prevent rust; Use oil seal grease to prevent rust; Adopt removable anti-corrosion polymer coating for rust prevention; Adopt washable anti-corrosion coating to prevent rust; Adopt anti-corrosion polymer coating that cannot be removed for rust prevention; Use air static drying method to prevent rust; Use contact corrosion inhibitor to prevent rust; Use vapor phase inhibitor to prevent rust; Use inert gas to prevent rust. Its basic basis is: the process of isolating and blocking the surface of the product from the external medium to cause the change of the technical state of the product. For the main sealing and packaging links, such as unpacking, unsealing, cleaning, drying, applying protective agents, sealing, etc., appropriate methods and processes shall be adopted according to the requirements of different aviation materials. There are special provisions on the materials used for the storage of aviation materials, such as: more and more products are moved into the laboratory to store oil, packaging materials, etc., mainly using the materials specified in the toct series standards (such as: H Г- 203 oil seal oil toct, polyethylene film
toct, anti-corrosion packaging paper toct, etc.). The author investigated the sealing and packaging status of Su-27 and Su-30 aviation materials imported from Russia by the air force. Their high-tech aviation materials are all first-class packaging. According to the requirements of the nature, structure and function of aviation materials, the corresponding special sealing and packaging technology and comprehensive sealing and packaging methods are adopted, such as internal sealing, external sealing, adding hygroscopic agent, sealing, padding, fixing Packing and other comprehensive sealing and packaging means. Conclusion: the air force air material system should learn from the sealing and packaging methods of foreign armies, especially the United States and Russia, and actively engage in the research, experiment, practice and application of high-tech air material sealing and packaging, including the research on the dynamics, development trends, packaging management system and management methods of domestic and foreign sealing and packaging; Research new sealing and packaging materials and applications, trial produce new sealing and packaging containers, improve sealing and packaging technology, and improve the sealing and packaging effect; Research and seal packaging containers and machinery to realize modern packaging; Study packaging specifications, quality, series, formulate packaging standards, and realize standardization, serialization, and generalization; On the premise of ensuring military benefits, efforts should be made to improve the economic benefits and efficiency of sealed packaging; Study the basic theory of sealed packaging, talent development, training and education, and improve the theoretical level and professional quality
source: China packaging zhaofujun Berlin zhengjinzhong