Cleaning method for silencer

Abstract

The invention provides a cleaning method for a silencer. The produced as-cast silencer is cleaned through ultrasonic wave with the temperature being 55-65 DEG C for 45-120 seconds, the silencer is cleaned for three times, and an alkaline detergent is added to ultrasonic water; rinsing is conducted through pure water; the silencer is rinsed through water with an alkaline rust remover added therein for 45-120 second and for twice; rust removal treatment is connected with the alkaline rust remover for 45-120 seconds; cleaning is conducted through pure water; air drying is conducted; and baking is conducted. According to the cleaning method for the silencer, a combined chemical and physical method is adopted, the alkaline detergent is combined with the ultrasound, and residual acid on the surface of the silencer can be effectively removed; then the water with the alkaline rust remover added therein is used for rinsing, it is further ensured that acid liquor is completely removed. Moisture in the technological process of the whole process is evaporated through air drying and baking, the surface of the silencer is ensured to be clean, the silencer is made to work well, and the noise defending effect is better.

Description

technical field [0001] The invention relates to the field of metal material surface protection, in particular to a method for cleaning a muffler. Background technique [0002] The muffler is a common accessory for household air conditioners and central air conditioners. It is generally used to control aerodynamic noise. The principle is to use the sound reflection effect of the device at the sudden change in the acoustic performance of the pipeline, and the sudden expansion, contraction or side connection of the resonance cavity of the pipeline section. Acoustic impedance mismatch is generated, so that the sound waves of certain frequencies are reflected and interfered at the interface where the acoustic impedance changes suddenly, so as to achieve the purpose of noise reduction. [0003] During the preparation of mufflers used in air conditioners, the raw materials are often oxidized and have certain rust spots, and in the process of processing and preparation, lubricating ...

AI Technical Summary

Problems solved by technology

[0003] During the preparation of mufflers used in air conditioners, the raw materials are often oxidized and have certain rust spots, and in the process of processing and preparation, lubricating oil, anti-rust oil, etc. are often coated on the raw materials, and oil stains will remain on the finished mufflers after processing , there are also certain rust spots, directly installed in the air conditioner compressor, it will affect the operation of the muffler, and the noise prevention effect will be reduced