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4. Increased use of plastic packaging containers According to reports, the United States has developed a plastic box for packaging M16 rifles. The box consists of a box and a box lid. The upper and lower parts can accommodate 6 rifles, and a plastic box can pack 12 rifles. , And the box can be reused many times, in line with environmental regulations. Europe has developed a plastic packaging drum for packaging, transporting and storing three-purpose cotton cloth bulk gunpowder. The plastic cartridge is composed of a cylinder body, an insertable cylinder cover, and a cylinder bottom, and is characterized by sufficient strength and excellent antistatic properties. performance. In the manufacture of the cylinder, carbon fiber is added, and the inner wall of the cylinder is coated with a conductive paint (for example, a conductive paint containing aluminum flakes), which can further improve the antistatic ability. Carbon black and metal powder are also added to the cylinder cover and the bottom of the cylinder. Metal fiber made of polyethylene or polythiophene plastic. Germany developed a new plastic tube for packaging cannonballs. The plastic packaging tube is composed of a cylinder body, a bottom of a cylinder, a cylinder lid, a liner lined paper cylinder, and an elastic material sealing ring. Its feature is that: the internal surface of the cylinder body is longitudinally spaced three times apart by 120 degrees. The angled arc-shaped guide bar enables the paper tube to be easily centered and pushed into the cylinder; the paper cylinder is spirally wound from multi-layer paperboard, and is adhered to the plastic cylinder body, which has the function of absorbing moisture in the cylinder to increase the package's Protection function.
5. Improved structural design of packaging In recent years, the United States military has accepted and identified a large number of new packaging structures. The U.S. Army Ordnance Research, Development and Engineering Center has conducted tests to identify the metal barrel structure of the 2 packaged 120mm tank bomb, the ten-ply wooden box structure of the metal box for packaging 7.62mm ammunition, and the structure of the barrel of the 7.62mm gunpowder WC750 propellant. 120mm M831 and M831E2 practice fire trace tank bombs, generally use PA116 metal tube packaging. The specific approach is to add a foamed polyethylene support at the interface between the projectile and the flammable cartridge to increase the resistance to damage. The improved packaging structure allows the flammable cartridges to withstand the 7ft/46rad drop test for simulated rough handling, greatly improving the packaging protection performance.
6. Use of new packaging materials In order to change the moisture-deformation and ammunition deteriorating defects of the packaging paper barrels, the National Oak Ridge Institute of the United States has conducted research on the improvement of the paper cartridges and other containers to replace the paper cartridges. In terms of improving the paper tube, a solution for waterproofing and moisture-proofing of the coated paper tube was proposed, and four coating materials were selected. In addition, the wall structure and the more easily openable neck sealing structure have been studied to extend the storage time. For "anti-explosion packaging", a feasible packaging material has been developed. According to reports, the U.S. military has successfully developed a packing material that can be filled inside a packaged explosives container to prevent popping. The material is a composite material that is mixed with a binder and can be cast. It is light, porous, absorbs shock waves, and absorbs shock. Filling this kind of material into the packaging container not only can prevent the explosion of the explosive in one container, but also can prevent the explosion of the explosives in the adjacent other containers and solve the problem in the ammunition packaging.
7. Military packaging to pallet assembly Development of palletized container packaging has many features such as loading capacity, management, ease of use, and savings in transportation costs. The United States is the first country to make large palletized wooden boxes. The Pica Tinny Arsenal pioneered the manufacture of a large pallet wooden box capable of carrying 86 rounds of 62mm rockets instead of 45 rounds of loaded bullets. The three ordinary wooden boxes of similar size were then used to make 42 rounds of 105mm. The large shells of the shells replaced 21 ordinary wooden boxes with the same number of shells. The U.S. Army has developed a large-sized tray-type wire bundle wooden box. This box is used as an outer packaging box and can hold 38 rounds of 105mm M490 anti-tank coaches that are packed in asphalt drums. The total weight is 1103.4kg and the volume is 1.328 cubic meters. Meter. Compared with the old packaging, the package weight was reduced by 14.1%, the volume was reduced by 37.5%, and the packaging material was saved by 59%. The container can also be used for the packaging of other tank bombs. Another new invention of the US Army's 105-ton tank package is the mounting of 30 or 35 metal packages on a metal tray to form a reusable unit package. A unit package allows one tank to be loaded and used. Once loaded, only the metal end cap needs to be opened to remove the projectile, and the bomb can be automatically fed into the tank. This is very convenient to use. (To be continued)
The Danish and Swedish Air Forces used dry air sealed packaging to successfully seal off aircraft weapon systems. Denmark saves about 2 million Danish kroner a year and saves 25% of maintenance personnel. Sweden prolongs the average time for malfunction of electronic and electrical instruments, prolongs the average time for radar failure by 73%, and extends the use of aircraft cabin instruments. 155%, the use of the whole machine has been extended by 26%. The sum of these costs adds up to about SEK 25 million per year. The German Air Force has also achieved good results with the dry air storage method for the storage of military aircraft. Germany has developed this. Six kinds of dynamic dehumidification systems for long-term storage of large military equipment, namely the use of drying room (MRZ), drying system (LEH), matching flexible packaging (ASH), universal flexible packaging (USH), and module protection Shed (MSB) and so on. For example, the German protective canopy for storing anti-tank guns consists of a bracket and a coated fabric envelope. The internal pressure of the 10 mm water column is naturally maintained by a dryer. The latter two types of sealed packaging are commonly used for various large military equipment, such as leopard tanks and Weasel infantry fighting vehicles. In addition, the United States, Britain, France, Canada, the Netherlands and Israel have all adopted dry air systems to seal aircraft and weapons systems.