The research and development of military product packaging materials should be conducted in accordance with the national defense strategy and logistics support characteristics of China. In particular, the modern warfare, high-tech weapons and equipment of the five-dimensional electromagnetic system of land, sea and air have put forward new and higher requirements for the packaging of military products. According to the research and development practice of an ordnance company, the article focuses on the protection functions of water vapor barrier (moisture proof), anti-static hazard, anti-electromagnetic interference, anti-microbial erosion, mechanical damage, and salt spray protection of military packaging.
1. Water vapor permeability
Military products such as gunpowder, explosives, primers, and other sensitive materials and ammunition formed from them are susceptible to moisture deterioration; electronic instruments and core boards, precision firearms, instrumentation, etc. are subject to moisture and rust or mold erosion. GJB2605-96 stipulates that the water vapor permeability of the packaging material should be less than 3g·m-2.30d to meet the long-term (>20 years) storage performance requirements of the product.
2. Anti-static hazard
Highly integrated electronic components in military products, light collection, electromagnetic control, precision instruments in one aiming, guidance, surveillance, early warning, command, control systems, weapons and equipment, and fuses, explosives, ammunition and other flammable and explosive sensitive products In the process of production, storage, transportation, and use, static electricity accumulates and discharges due to friction, impact, contact, and separation. As a result, the weapon system loses combat capability and even burns and explodes, resulting in incalculable losses. GJB2605-96 requires that the surface area resistivity of military packaging materials should be less than or equal to 109DΩ/mouth, and the outer surface resistivity should be 1012Ω/□; the static decay time should be less than 2 seconds; static shielding should be less than 30V to prevent the damage caused by static electricity accumulation.
3. Anti-electromagnetic interference With the use of electronic countermeasures in modern warfare, the electromagnetic environment on the battlefield has been deteriorating. The Gulf War and the Kosovo War show that the electronic warfare has broken through the scope of communications, radars and other types of interference aimed at self-defense, and has developed into confrontations such as command, accusation, optoelectronics, and computers. When the electromagnetic wave penetrates the sensitive device of the weapon system, its harm is very much like an electrostatic discharge, and the weapon equipment loses its fighting power instantaneously. The use of electronic countermeasure technology has promoted the development and use of electromagnetic interference shielding packages. GJB2605-96 specifies: Electromagnetic interference attenuation> 25dB. Anti-electromagnetic interference packaging materials effectively attenuate and shield electromagnetic waves.
4. Antibacterial erosion.
There are many kinds of bacteria, and they must be controlled according to the different growth requirements of different strains on the environment temperature, humidity, and nutrients. Such as moisture through and maintain the relative humidity of the package is less than 65% to inhibit the growth of mold; by oxygenated sealed package to inhibit the growth of anaerobic bacteria; the use of vacuum, inert gas, special treatment and other packaging methods for other bacteria to vote their "evil" , inhibit its growth.
5. Anti-mechanical military packaging materials must have sufficient mechanical strength to ensure that military products are squeezed, rubbed, bumped, shaken, and dropped without damage during stacking, handling, transportation, and storage. Therefore, during the design process of military packaging, according to the special requirements of military products, an optimal combination of multi-layer materials with good mechanical strength is selected to enhance the mechanical physical properties of packaging materials such as breaking force, right-angled tearing force, friction resistance, and puncture resistance. Buffering performance, etc., can protect military products from damage and facilitate long storage.
The research and development of military packaging should also be conducted in accordance with its compatibility with military products, environmental temperature (-45-55°C) adaptability, long-term storage (>20 years or more), and aging resistance to ensure that military products are in various kinds of bad conditions. The natural environment has a strong fighting power. The sealing methods of military packaging should be diversified, which is not only convenient for service processing but also can exert its excellent and reliable protection function. An ordnance enterprise has closely developed the above requirements, developed and manufactured excellent military packaging materials, produced them in batches and was installed by our military, and achieved remarkable national defense and military benefits.
1. Water vapor permeability
Military products such as gunpowder, explosives, primers, and other sensitive materials and ammunition formed from them are susceptible to moisture deterioration; electronic instruments and core boards, precision firearms, instrumentation, etc. are subject to moisture and rust or mold erosion. GJB2605-96 stipulates that the water vapor permeability of the packaging material should be less than 3g·m-2.30d to meet the long-term (>20 years) storage performance requirements of the product.
2. Anti-static hazard
Highly integrated electronic components in military products, light collection, electromagnetic control, precision instruments in one aiming, guidance, surveillance, early warning, command, control systems, weapons and equipment, and fuses, explosives, ammunition and other flammable and explosive sensitive products In the process of production, storage, transportation, and use, static electricity accumulates and discharges due to friction, impact, contact, and separation. As a result, the weapon system loses combat capability and even burns and explodes, resulting in incalculable losses. GJB2605-96 requires that the surface area resistivity of military packaging materials should be less than or equal to 109DΩ/mouth, and the outer surface resistivity should be 1012Ω/□; the static decay time should be less than 2 seconds; static shielding should be less than 30V to prevent the damage caused by static electricity accumulation.
3. Anti-electromagnetic interference With the use of electronic countermeasures in modern warfare, the electromagnetic environment on the battlefield has been deteriorating. The Gulf War and the Kosovo War show that the electronic warfare has broken through the scope of communications, radars and other types of interference aimed at self-defense, and has developed into confrontations such as command, accusation, optoelectronics, and computers. When the electromagnetic wave penetrates the sensitive device of the weapon system, its harm is very much like an electrostatic discharge, and the weapon equipment loses its fighting power instantaneously. The use of electronic countermeasure technology has promoted the development and use of electromagnetic interference shielding packages. GJB2605-96 specifies: Electromagnetic interference attenuation> 25dB. Anti-electromagnetic interference packaging materials effectively attenuate and shield electromagnetic waves.
4. Antibacterial erosion.
There are many kinds of bacteria, and they must be controlled according to the different growth requirements of different strains on the environment temperature, humidity, and nutrients. Such as moisture through and maintain the relative humidity of the package is less than 65% to inhibit the growth of mold; by oxygenated sealed package to inhibit the growth of anaerobic bacteria; the use of vacuum, inert gas, special treatment and other packaging methods for other bacteria to vote their "evil" , inhibit its growth.
5. Anti-mechanical military packaging materials must have sufficient mechanical strength to ensure that military products are squeezed, rubbed, bumped, shaken, and dropped without damage during stacking, handling, transportation, and storage. Therefore, during the design process of military packaging, according to the special requirements of military products, an optimal combination of multi-layer materials with good mechanical strength is selected to enhance the mechanical physical properties of packaging materials such as breaking force, right-angled tearing force, friction resistance, and puncture resistance. Buffering performance, etc., can protect military products from damage and facilitate long storage.
The research and development of military packaging should also be conducted in accordance with its compatibility with military products, environmental temperature (-45-55°C) adaptability, long-term storage (>20 years or more), and aging resistance to ensure that military products are in various kinds of bad conditions. The natural environment has a strong fighting power. The sealing methods of military packaging should be diversified, which is not only convenient for service processing but also can exert its excellent and reliable protection function. An ordnance enterprise has closely developed the above requirements, developed and manufactured excellent military packaging materials, produced them in batches and was installed by our military, and achieved remarkable national defense and military benefits.
Kitchen Tools
The soul of a perfect kitchen is cutting-edge kitchenware.
To make your cooking full of fun and make your time in the kitchen more efficient, our collection of speciality kitchen tools and gadgets like the grater, zester and peeler are designed to help simplity meal preparation.Moreover, you can learn the tricks of the trade while you are at it.
With our good quailty kitchenware and fashion style, you will be able to find your ideal kitchenware in our colletion.
Cooking Tools,Kitchen Tools,Cooking Utensil Set,Kitchen Gadgets
Xiongyang Household Co., Ltd , https://www.nbyjkitchen-manage.com