Noise Reduction Tips from the Experts

Based on years of experience on the front lines, maintenance personnel have summarized three simple and effective methods for reducing noise, covering equipment installation, maintenance, and the use of soundproofing materials.

Step 1: Check the stability of the installation.

Many of the noise problems are actually caused by "not being installed securely.After being used for a while, the screws and bases loosen and the machine begins to make a racket.

We need to focus on these places.

The workers take a screwdriver and tighten all the screws one by one, especially on the motors and bearings, which are subject to high-frequency vibration.If the floor is not level, try placing two layers of rubber shock absorbers under the machine. The discarded conveyor belts in our workshop, cut into small pieces, work especially well; they are more practical than the purchased products.

Step 2: Give the parts some "pressure relief.

Like people, equipment that is overworked is prone to "temper tantrums.Last week the old compressor in the factory was humming so loud it gave me a headache. I later discovered it was because the belt was too tight. When I loosened it a half turn, it quieted down considerably.

Don't forget these details.

The drive belt should be adjusted to allow 1-2 centimeters of slack. The bearings should be lubricated once a month.If you hear a grinding sound, it's probably because the gears are lacking oil, and you should quickly apply some high-temperature grease.While you're at it, clean out the dust that has accumulated in the vents.

Third, sound insulation materials must be used in the right place.

When noise cannot be reduced, it has to be covered up.However, you mustn't wrap them up with a blanket or something like that. Last year a colleague of mine wrapped up his electric fan too tightly, almost starting a fire.

Safe and effective.

We put sound-absorbing material around the air vents and wrapped sound-insulating tape around the joints of the pipes.For low-frequency noise in a workshop, a few sound-absorbing boards on the wall are especially effective.If the budget is adequate, a soundproof cover with ventilation holes can be added to the key equipment, and the effect is immediate.

These methods were all developed by the old hands in our department. Everyone can adjust them to fit their own facilities.If you encounter a particularly persistent noise, it's best to have a complete checkup. Sometimes an unusual sound can be a sign of a future breakdown, and early detection can save you a lot of repair costs.