The principle of protection degree
For moistureproof, anti - bacteria, solar radiation, salt fog and anti - industrial atmospheric corrosion, the suitable materials should be selected as the main material, with good metal surface protection and insulation treatment. When the above measures can not meet the requirements, we can consider increasing the structural sealing measures.
In the case of anti solid foreign body, rainwater prevention and chemical corrosion prevention gas, the protection of the shell seal should be given priority to, and the necessary material selection and process measures should be supplemented.
To prevent vibration, first of all, we should minimize the vibration source, or adjust the natural frequency of the system, so as to avoid resonance. If it is not required, the shock absorber and isolation measures are adopted.