The machining center has high requirements for compressed air, which is mainly reflected in pressure stability, high purity, high dryness, low oil content these requirements jointly ensure the normal operation and processing quality of the machining center. Here are the specific instructions:
1. pressure stability
- pressure range: The compressed air pressure used in the processing center usually needs to be maintained between 6-8bar (or 0.7-1.0 MPa, MPa). This range is to ensure that the machining center can obtain stable power support during operation, so as to ensure the machining accuracy and equipment performance.
- Pressure stability: Stable pressure output is essential for the normal operation of the machining center. The instability of the pressure may lead to processing errors, equipment failure, and even affect the processing quality. Therefore, when selecting an air compressor, it is necessary to ensure that it can provide a stable pressure output.
High 2. purity
- granularity: Compressed air shall not contain dust, moisture and other impurities. These impurities may enter the interior of the machining center and affect the normal operation and accuracy of the equipment. Therefore, it is necessary to use a filtered and deoiled air source to meet the purity requirements of the machining center.
- Filtration accuracy for high-precision parts such as high-speed bearings, the compressed air entering the bearings must be clean and dry, and the filtration accuracy should be above 3 microns, and it is best to go through oil-water separation.
High 3. drying degree
- dew point requirement: The processing center needs to use dry compressed air to avoid damage to the equipment by water vapor. The lower the dew point, the less the water vapor content in the compressed air, the higher the degree of drying of the air. Different industries have different requirements for dew point, but processing centers usually require a lower dew point temperature to ensure the dryness of compressed air.
- Drying equipment: In order to achieve the drying of compressed air, it is usually necessary to use equipment such as dryers. These devices can effectively remove the moisture in the compressed air and ensure that the air entering the processing center has sufficient dryness.
Low 4. oil content
- oil content limit: In order to avoid pollution to equipment and processes, the oil content in compressed air also needs to be controlled at a low level. The oil content is usually required to be below 5 mg/m3 to ensure that the air quality meets the requirements of the processing center.
- oil-water separation: In the compressed air system, it is necessary to set up equipment such as oil-water separator to remove the oil and moisture in the compressed air. These devices can effectively protect the internal components of the machining center and extend the service life of the equipment.
