There are many cleaning methods. The cleaning methods include mechanical, dry ice, chemical, sandblasting, laser cleaning, etc. In particular, laser cleaning is a new green cleaning method in recent years. Specifically, the comparison between laser cleaning and other cleaning methods is described below.
Cleaning methods include dry ice, chemical, sandblasting, and dry ice. Cleaning molds has zero damage to cleaning molds, medium efficiency, high cost of dry ice, difficult to store, dangerous goods, and can reduce costs. The only way to reduce costs is to buy dry ice locally. Dry ice will consume dry ice during transportation and increase the cost. 2. Chemical cleaning of the mold will corrode the metal material on the surface of the mold. Cleaning needs to be soaked for a period of time to increase the corrosion of the mold, which is not conducive to long-term use of the cleaning mold, and will produce industrial waste water, which is harmful to human health. 3. The sandblasting cleaning mold is sprayed with materials (copper sand, quartz sand, emery, iron sand, sea sand) to the surface of the mold at high speed, which will cause damage to the surface of the mold, which is not conducive to cleaning the mold for a long time, causing air pollution and noise. , There will be inhalable particulate matter that will cause harm to the human body.
The mechanical cleaning method has high cleanliness, but it is easy to damage the substrate. The chemical corrosion cleaning method belongs to stress-free cleaning, but the pollution is heavy. Especially when the dirt composition is complex, multiple cleaning agents must be used for repeated cleaning to meet the surface cleanliness requirements. . Liquid solid jet cleaning has high flexibility, but relatively high cost, needs to consume a lot of water and solid impurities, and the later waste liquid treatment work is also more complicated; although the high-frequency ultrasonic cleaning method has a good cleaning effect, it has strong adhesion. The cleaning of the sub-micron dirt particles is powerless, the size of the cleaning tank limits the size range of the workpiece to be cleaned, and the drying after cleaning is also a major problem.
Compared with traditional cleaning methods such as mechanical friction cleaning and chemical corrosion cleaning, laser cleaning machine has obvious advantages in cleaning rubber molds. It is efficient, fast, low cost, small thermal load and mechanical load on the substrate, non-destructive cleaning; recyclable waste, no environmental pollution; safe and reliable, does not damage the health of operators; can remove a variety of different thickness, different Coating of ingredients; the cleaning process is easy to realize automatic control, realize remote remote cleaning, etc. It can be seen that laser cleaning technology will gradually replace some traditional cleaning methods in the future.
Laser cleaning can be selectively cleaned, that is, it can be selectively cleaned for the object to be cleaned. This technology can make the surface of the substrate intact. For different contaminants on different substrate surfaces, the contaminants can be selectively cleaned by setting laser parameters (such as spot size, single pulse energy, pulse width, repetition frequency, etc.) without damaging the substrate.
The above is the comparison between laser cleaning and other cleaning methods. Compared with traditional cleaning, laser cleaning still has many advantages. Laser cleaning has the feature of environmental protection, which is a feature that traditional cleaning does not have. Promote the application of laser technology in the field of surface cleaning.