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According to the method of adding coating materials, laser cladding can be divided into preset type and synchronous type. The preset type is to pre-place the material to be coated on the surface of the base alloy by spraying or bonding, and then irradiate it with a laser beam; the synchronous type is to spray the coating powder directly into the alloy molten pool irradiated by the laser. forming. The former is simple to operate, but has higher requirements on the thickness of the pre-coated powder and the binder. The latter has high production efficiency and good quality of the cladding layer, but has higher requirements for powder feeding equipment and powder.

Laser cladding is a metallurgical process related to many aspects of physics, chemistry, and materials science. Its ultimate goal is to realize the interaction between laser and powder materials. There are many factors that affect the quality of the laser cladding layer, and the cladding material is a major factor. Since the birth of cladding technology, the choice of cladding materials has always been valued by researchers. When designing, in addition to considering the performance of the coating material, it is also necessary to consider whether the coating material and the substrate have good compatibility and matching. One of the important reasons for cracks in the laser cladding layer is the difference in thermal expansion coefficient between the cladding alloy and the substrate. To prevent the coating from cracking and peeling off, the thermal expansion coefficient of the coating and the substrate should be as close as possible. The smaller the difference, the less sensitive the cladding layer is to cracking.

Therefore, technological innovation is the normal state of development in the laser industry. Pure-Air laser cladding fume extractor have always maintained a high density in cooperation with these laser processing companies to provide more energy-saving, environmentally friendly, and highly efficient laser smoke filter.

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