Discussion on the matching of civil fasteners
Within the aerospace industry, with the establishment and improvement of the fastener manufacturing plant, the company has gradually formed the “National Military Standard Aerospace Industry with the main fastener manufacturing factory and the external procurement as the supplement. The industry standard aviation industry standard national standard enterprise standard quantity is supplemented by the fastener production supply pattern. On the one hand, the reform of the aerospace logistics system has enabled the procurement activities of fasteners to begin to develop in a centralized direction. The procurement volume has increased, and the passive situation with standard and no products has been greatly improved. On the other hand, the development of aerospace products The unit has passed the ISO9000 quality management system certification, and the “qualified sub-supplier†system has been established. The fixed-point purchasers of fasteners have been identified and incorporated into the quality assurance system of the procurement unit. The procurement quality has gradually stabilized. This development trend has greatly increased the acceptance of orders by fastener manufacturers and increased the enthusiasm for the production of fasteners for aerospace products. At the same time, the rapid development of foreign-funded enterprises and joint ventures has led to the improvement of the technical level and manufacturing process of civilian fasteners. Some civilian fastener manufacturers have begun to get involved in enthusiasm technology, hot-rolling technology, high-strength bolts. Manufacturing processes, even the processing of titanium alloy fasteners. In this respect, the most convincing example is the development and localization of China's automobile industry, which has effectively promoted the development of automotive fasteners and connection technology, and has also led to the improvement of a number of domestic fastener manufacturers. And development. With the improvement of the technical level and manufacturing process of civil fasteners, some enterprises with technical strength are interested in pursuing high-tech products, and hope to enter the ranks of supporting production for aerospace products. It is not difficult to predict that aerospace fasteners will be the most widely used and most standardized mechanical products in aerospace products, and the scale of market-based procurement will continue to expand. This development trend will surely involve civil fastener manufacturers in aerospace products. The supporting production provides broad market prospects. Aerospace fastener manufacturers in Europe and the United States have a relatively complete quality assurance system. With the extensive implementation of ISO9000 series standards on a global scale, aerospace fastener manufacturers have also carried out ISO9000 quality management system certification. In the late 1990s, the “Aerospace Fasteners Purchasing Regulations†drafted by ISO/TC20/SC4 added a “Qualification for Manufacturers†clause, clearly stating that “manufacturers should meet the quality assurance requirements of the ISO9000 series of standards. And quality certification procedures. The purpose is to ensure that manufacturers have continuous production (fastener) quality systems and capabilities that meet the specified quality requirements. "ISO9000 regulations, quality documents for the production of fasteners according to international standards, at least 10 "Year", "The approval of the manufacturer must be approved by a special appraisal agency or agent." It can be seen from these regulations that there are strict regulations on the basic qualifications of aerospace fastener manufacturers in the world, that is, they must first be approved by a special agency and passed the ISO9000 quality system certification. The main measure for the US military to implement quality control of purchased products is to develop and publish qualified product catalogs and qualified producer catalogs. The US military QPL and QML are actually the result of the US military product quality certification system. The implementation of QPL and QML can make the production of military products maintain relative continuity in the United States. Purchasing personnel purchase according to QPL and QML, there is no need to conduct qualification tests for each batch of products in the procurement process, thus reducing the expensive test costs. At the same time, it also shortens the acquisition time, and provides conditions for ensuring continuous procurement of high-quality and reliable products to improve the integrity of the equipment. Product manufacturers in QPL and QML are able to prioritize military orders, which to some extent encourages manufacturers to conduct QPL and QML identification, enabling them to serve the Department of Defense. In China, in order to cooperate with the implementation of military product research and production contract system and license management system, strengthen the quality supervision of military products, and gradually implement the product quality certification system, the National Defense Science and Technology Commission has made "strengthening the quality system certification of military products." The management and supervision, improve the quality of certification work, "gradual implementation of components, raw materials, general parts and other military supporting products quality certification system" and other decisions, and have successively issued a series of regulatory documents to guide and regulate military products The development of quality certification work. Therefore, civil fastener manufacturers must participate in the supporting production of aerospace products, must first obtain the qualifications to participate in the supporting production of aerospace products, that is, must first pass the military product quality system certification and the quality certification of the aerospace fasteners produced. 2. Integrating resources and improving the specialization of fastener production is the basis for participating in the production of aerospace products. Foreign aerospace fasteners are manufactured by professional manufacturers. These manufacturers are highly specialized, they often Only a small class of aerospace fasteners are manufactured. European aerospace fastener companies have a wide range of production, but not all-inclusive, such as France's BlancAero, which only produces bolt-type fasteners and nut-type fasteners. These companies all operate in a market economy environment, and some internationally renowned aerospace companies (such as Boeing, Hughes) have close relationships with these fastener companies. Highly specialized production brings high-speed development of manufacturing technology and high-quality products. For example, fastener products in the United States are not only supplied to North American countries such as the United States and Canada, but also exported to Europe, Australia and Asia. Conclusion In order to enable the national defense science and technology industry to embark on the path of intensive and sustainable development, the Party Central Committee and the State Council have put forward the idea of ​​rational distribution and structural adjustment of the national defense science and technology industry, and demanded to break the pattern of self-enclosed, self-contained system and self-organized society. Establish a national defense science and technology industrial research and production system of "dumbbell type", military-in-human, "small core, and large cooperation" to form a scientific and technological production and operation mechanism for national defense science and technology industry that meets the needs of national defense modernization construction, conforms to market economic laws, and coordinates and is efficient. . Lock Body,Door Lock Body,Alloy Door Lock Hi-Stay Trading Co., Ltd. , http://www.szprotection.com