To say that the quality of the first push foreign imports, after all, foreign technology is much better than China, especially the pipe diameter, and the wall thickness of the pipe, the completion of the import is very good, and the service life is very long and not easy to break, but the high price is indeed a waste of money for the general enterprise to buy an imported one, so the best is to buy in China. The more famous domestic Zhangjia Hong Kong and Taiwan machinery is one of them. After long-term use, it is inevitable that there will be some failures, let's talk about what causes the noise and resonance?

Noise affects the comfort of users using pipe bending equipment and is an important index to measure quality. Domestic high-power noise is generally more than 80dB, especially in places with low temperatures, not only loud noise, but also resonance phenomenon. The noise of foreign high-power cnc pipe end forming machines is generally below 76dB.

The frame is a welded box structure, similar to a sound box, which has an amplification effect on noise. At the same time, in the place of low temperature, the movement resistance increases due to the increase of the viscosity of the lubricating oil and the contraction of the sealing ring, which further aggravates the generation of noise. During the welding process of the frame, we must ensure the quality of the welding parts, reduce the welding deformation, increase the appropriate reinforcement, so that the sound box effect is difficult to form. At the same time, the use of low-temperature lubrication grease and sealing rings can reduce noise.

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