Governance: dongguan yixin environmental protection mechanical and electrical equipment limited company mainly to undertake all kinds of noise control engineering, main products suitable for construction, industrial, residential and commercial and other aspects. Specifically include: soundproof room, silencer room, test room, audiometry room, ventilation silencer, ventilation silencer shutter, soundproof door, soundproof air conditioning box, soundproof board, soundproof room, soundproof material, etc. Noise Control In the development of material properties, our company has a strong technical force to support noise control. In terms of production, strict control of raw products is based on "technological innovation, manufacturing advanced products, standardized management, and customer satisfaction". In order to modernize production, in response to the international industrialization trend, the company actively uses the Internet network with high vision and large space as the basis for marketing. At the same time, integrated marketing planning and brand strategy implementation as the program, radiating the whole country and going international. Noise control in good faith plastic brand, to undertake all kinds of environmental noise control engineering, large acoustic laboratory engineering, vibration control engineering design and construction. Control: Because noise is extremely harmful to humans, people have summarized many noise control methods through in-depth research on noise, which are summarized as follows: noise control methods 1: Active noise reduction. Active noise reduction is the use of computer technology, according to the noise frequency, amplitude, period and other characteristics of sampling, and generate close to the synchronization of the reverse phase signal superposition, to achieve the purpose of noise control. At present, this kind of noise control method is not mature enough and is in the development and research stage. noise control methods 2: Passive noise reduction. At present, most noise reduction methods are passive noise reduction. According to the use of materials and parts can be divided into vibration reduction noise control, sound absorption noise control and sound insulation noise control. In most cases, multiple methods are usually used in combination. According to the current material technology and construction technology, any noise can be basically controlled. Dongguan Yixin Environmental Protection Electromechanical Equipment Co., Ltd. adopts engineering and technical measures to control the sound output of noise sources, control the spread and reception of noise, in order to obtain the acoustic environment required by people, that is, noise control. Using various noise control methods, different noise reduction effects can be received. If the ordinary gear of the mechanical transmission part is changed to a gear with elastic sleeve, the noise can be reduced by 15-20 decibels; the riveting is changed to welding, and the forging is changed to friction pressure processing, etc., which can generally reduce the noise by 30-40 decibels. The choice of control measures, reasonable noise control measures are based on noise control costs, noise tolerance standards, labor productivity and other relevant factors to determine the comprehensive analysis. For the control of environmental noise, control technology is the basic means. Administrative measures and reasonable planning are also very important. All noise problems can basically be divided into 3 parts: sound source ~ transmission path ~ receiver. Therefore, the general noise control technology is divided into 3 parts to consider. The first is to reduce the noise of the sound source. If it is not possible, or it is not economical to do so, consider reducing it from the transmission route. If the above scheme still meets the requirements of noise control or is not economical, the recipient's personal protection can be considered. (1) sound source control to reduce the noise of the sound source itself is a permanent cure; (2) Noise transmission route control; (3) Sound absorption: mainly using sound-absorbing materials or absorbing structures to absorb sound energy; (4) Sound insulation: blocking the sound with a shield and isolating it is one of the most effective measures to control noise; (5) Muffling: Muffling is the use of mufflers to reduce the transmission of sound in the air.