What is the cause of dust generated by non-metal laser cutting? How to solve it

Relying on high efficiency and flexibility, high production capacity, and fast cutting speed in modern industry, laser cutting has the advantages of high efficiency and flexibility. In particular, laser cutting of non-metallic materials plays an important role in traditional manufacturing, and many non-metallic plastic products and laser cutting play an irreplaceable role in the processing of multi-layer composite materials.

We all know that the principle of laser cutting is to use a laser beam with corresponding power density to irradiate the cutting material, so that the cutting point of the material is immediately heated to the evaporation temperature, and then evaporate to form a processing gap to achieve the purpose of processing. In this process, extremely complex physical and chemical changes occur in the deep or surface materials of the workpiece. Simply speaking, physical changes are the evaporation of dust and particles; chemical changes will produce odor, viscosity, and specific processing materials themselves, depending on the specific processing materials themselves.

Analysis of the causes of dust generated by non-metallic laser cutting.

1. The dust generated by laser cutting of non-metallic materials is a physical change. During the processing, professional laser dust removal devices can be used for dust removal, such as the standard needle felt composite membrane filter bags and membrane filters, which can basically purify more than 90% of the dust;

2. The odor and stickiness generated by laser cutting of non-metallic materials are easy to clog the filter. Oily substances belong to the category of dust that is difficult to handle. Activated carbon adsorption purification is a traditional method of treating molten odor to achieve the purification effect;

3. Non-metallic laser cutting dust has a physical and chemical mixture, that is, the dust contains odor and viscosity particles. The purification equipment needs to have dust purification ability and odor purification ability. It is necessary to estimate and judge the dust properties in advance and configure the correct purification device.

Design and functional requirements of laser cutting non-metallic dust treatment purifier.

1. For the treatment of laser cutting dust of non-metallic materials, the dust purification equipment must first have efficient filtering function, strong oil resistance and anti-stickiness;

2. For the treatment of odorous dust, laser dust removal equipment must have effective treatment of activated carbon dust;

3. Considering that the dust after laser cutting may also undergo complex changes due to different materials, density, temperature, spatial characteristics and other factors, it is required to reserve a process backup design for additional accessories when installing the dust removal equipment.