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1. The lack of "three defenses" standards
The main objects of MIL-STD-810D and GJB150 are equipments and products. The IEC68 document and GB2423 are mainly for equipment and materials, and the packaging is faced with the situation of both packages and materials, and it is difficult to adapt to the above standards. China's national packaging standards mainly refer to ISO, and there are not many "three defenses" standards. China’s military standard issued a total of 228 items by the end of 1986, of which only six were related to packaging standards, and slightly increased during the “July 5th†period, but it was still relatively lacking. The “three defenses†requirements for packaging are sometimes not suitable for the use of the product. For example, the use of bactericides will often affect the corrosion and moisture resistance of the product. However, sometimes solving one of the “three defenses†can also solve another problem. For example, at the same time as solving the problem of moisture prevention of products, some mildew-proof problems can be solved, and some aniline anti-mold agents can be used to protect certain metals. Therefore, the "three defenses" is an associated whole, and it is necessary to conduct unified research and formulate a unified standard. At present, China has no systematic normative and complete standard for the “three defenses†packaging of military electronic equipment. This has led to the production companies failing to follow regulations in their packaging, resulting in the design and process failing to achieve practical results, blind and lax in material selection and construction. . Even if there are some standards, it is difficult to implement because the standards and production are disjointed. The lack of military "three defenses" packaging standards is one of the important reasons for the backwardness of military packaging. Systematically arranging packaging standards, formulating corresponding standards as soon as possible, and establishing a complete and unified military "three defenses" packaging system are currently an arduous task.
2. Revision of standards to adapt to new requirements
At present, military electronic equipment is undergoing a period of upgrading, and the formulation of product standards and the formulation of product packaging standards can no longer be synchronized. Some of the original standards have not fully adapted to the new requirements and must be revised in a timely manner. Such as some packaging mold test methods, the main indicators of the standard is consistent with GB242 3.16-81, but GB2423.16 is mainly for electrical and electronic products and materials required for the development of the mold test, and packaging has its own special requirements in When the fungal test was carried out, the first thing encountered was to test with a package or with a material. Whether the package is in-kind or simulated. China's packaging standards mainly rely on ISO standards. It should be said that material testing should be the mainstay. If the test is carried out on packages, it is not a matter of volume, and large equipment is not required. The main thing is that the product has been tested for artificial growth. Assessing and then performing a mildew test within the package, because the mold is a destructive test, the test takes a long time, costs a lot, plus a product, the cost increases, the military product volume is very small, using a finished product to test, In this way, many factories will be daunted and dare not to pay attention to it. Therefore, the packaging “three defenses†test should adopt test methods that reflect the characteristics of its own packaging, and should not blindly adopt the same type of domestic testing methods, otherwise it is difficult to promote the application of test methods. One example is the packaged mold standard. The characteristics of research packaging should be strengthened to prepare a feasible "three defenses" standard for packaging. ]
3. Determine basic environmental conditions
The transportation and transit storage of packaging must be affected by environmental factors, and the packaging of the equipment and the equipment itself will cause changes in performance quality and even damage. Therefore, when formulating and revising the military “three defenses†packaging specification, the environment of the packaging should first be studied. The requirements and the environmental conditions and climate zoning within the territory of our country are used as the basic basis for formulating package requirements. At the same time, it is necessary to study the causes of deterioration and protection measures that are affected by the environment so that the overall package can be further improved.
The evaluation of the packaging test should also be based on the environmental conditions of the package. If the packaging is over-requested, the cost is increased excessively, and if the demand is too low, the product cannot be protected. With environmental parameters, it is possible to put forward reasonable and stringent grade requirements in packaging tests and evaluations, so that the test methods truly become a means to improve and ensure product packaging, and improve the vitality of the test.
Third, the proposal
On the basis of current research and analysis, several suggestions are made:
1. The "three defenses" packaging should be considered in the initial product design. The "three defenses" performance of equipment raw materials and packaging materials, as well as the performance interactions and interactions between materials, are all considered in the product design.
2. Study the "three defenses" overall process measures. The "three defenses" are related to each other. We must consider the overall technological measures and seek advantages and avoid disadvantages.
3. Science and technology are primary productive forces. We must pay attention to rapidly transform scientific research results of protective functional new materials and new processes into productivity and speed up the packaging reform process.
4. We must formulate the complete and unified norms and standards for “three defenses†packaging as soon as possible, and study the environmental conditions in the climate zone during packaging, transportation, and storage in China as the prerequisite and basis for formulating standards. Establish packaging supervision and management institutions.
Source of information: India Tradelink
Second, develop a complete, unified "three defenses" packaging norms and standards
March 05, 2019