Huaneng shock absorber damping spring shock absorber damping spring pipeline equipment

Recently my company Huaneng applicable norms our vibration dampers also made a relevant understanding. This special vibration dampers will use our standards and applicable specifications published as follows: 1. The vibration dampers should be manufactured in accordance with the requirements of this standard. 2. The shock absorber damping material is silico-manganese spring steel 60Si2Mn (y) 249-8A1. 3. The vibration dampers misalignment of the two mounting holes should not exceed I mme 4. vibration dampers should be galvanized, and by the dehydrogenation process. 5. The vibration dampers surface should not have cracks and scratches and other defects. 6. shock absorber damping technology by manufacturing a wide acceptance inspection department and issued a certificate. 7. The shock absorber damping characteristics and dimensional inspection, sampling each batch lUr, but each type not less than five. } 00% visual inspection performed. Inspection process if found defective product, you should double sampling retest. Vibration dampers retest still has failed, after the elimination of defects by the manufacturer, submission and acceptance of new children. Rated working load and load test, the length of the compressed deviation shall not exceed the load brigade plus 8 hours, measured permanent deformation, its value should not be warped values ??tested before the test shock absorber damping. Our shock absorber damping noise control technology research in recent years has made considerable progress, test and analysis of the technology has been greatly improved, Stations of medium-sized industrial production areas have generally used precision sound level meter, noise Statistical analyzer or automatic monitor, on a regular basis, from time to time on a wide range of industrial measuring points more quickly with vibration dampers, continuous on-site monitoring, to provide a scientific basis for noise management of industrial equipment. After years of promotion and application of noise reduction, sound absorption, sound insulation, vibration isolation and damping spring shock absorbers and other conventional treatment technology in the Ministry of Industry has been popular. Different industries according to their production process and equipment characteristics, has accumulated successful experience. Low-noise equipment development technology breakthrough, noise control equipment devices, the rapid formation of a new industry has begun to take shape, in noise control and pollution prevention of the growing ranks of professional and technical personnel. Our many universities, scientific research and design institutes and industrial and mining enterprises also carried out to reduce the noise damping products research and practice, in-depth analysis of various noise sources vocal mechanism and transmission routes, such as the successful development and production of spring Save shock absorbers, adjustable damping shock absorbers and more than 20 kinds of low-noise products, the emergence of new low-noise axial fan, low noise centrifugal fan, low-noise blower apparatus according to market on this device. Noise control is also reflected in the development of enterprise management, China as early as in the 1970s to protect the environment will be established as a basic national policy, and to develop a variety of environmental planning. In recent years, governments at all levels and to establish a soil fertility and improve the environmental management structure, environmental monitoring and management systems, and environmental protection product quality supervision and inspection system, 1996 also enacted industrial equipment Noise Control Act and a variety of noise and vibration limits for standard and measurement methods, the use of spring-damper handle noise in the process according to the law, a standard to follow. As China's national economic development and science and technology continues to improve, noise control technology will have greater development.