The color of green laser pointer can be customized

Laser cladding is a metal-ceramic technology plus ceramics by the method of particle formation, which has brought to the cladding certain degree of difficulty, especially when applied ceramic phase content is high, it is difficult to get a good cladding . In addition to the laser process parameters, the hard ceramic phase and the type of bonding metal coating microstructure and properties that affect an important factor. To solve the above problems, the choice of ceramic materials can be guided by the following principles: selection of ceramics and metal to a chemical reaction between the ceramic and metallic materials; reaction products may be generated or the original with the original ceramic white metal has good compatibility. The product category ofgreen laser pointerwill help customers know more information.
That is similar to the crystal structure, similar lattice constants, and the product can not be too much, it is best to form composite materials; minimize ceramic and metal matrix materials linear expansion coefficient and density differences, in order to avoid solidified to form the solid / solid interface does not match, thereby reducing the tendency to form cracks; from the solid / liquid interface point of view, requiring pre-ceramic coating for the substrate when the melt has good wetting and spreading, that is , coating the substrate surface tension must be less than the critical surface tension, the coating / substrate interface is not a single geometric surface, the surface is multi-layered transition zone, the interfacial region may consist of several sub-layers, each sub-layer the nature of the cover layer with the material, substrate and process related. The waterproofgreen laser pointeris very popular in the market.
According to solid-state phase transition and the chemical bond theory, the coating can be added to some element in the cable, so that the ceramic and the substrate to produce good chemical reaction at the interface to form covalent bonds, and to improve the interface strength. Laser cladding method, according to different modes of supply alloy, laser cladding can be divided into two types: synchronous method alloy and alloy pre-law. Cladding surface of the substrate pretreatment. In order to remove the substrate cladding part of the dirt and rust. Preheating and heat treatment, whose role is to prevent the substrate heat-affected zone of martensitic transformation occurred resulting cladding cracks, therefore, appropriate to reduce the substrate and the cladding layer to reduce the temperature difference between the cladding layer of cold reduce the stress, increased residence time of melt layer of liquid melt layer can be conducive to the elimination of air bubbles and slag forming material. The color of green laser pointer can be customized.
Preheat the actual production process, the method often used to eliminate or reduce the cladding cracks, especially for easy-to-cracking of the substrate to be preheated, less tendency to crack in the cladding layer in the case, sometimes the use of warm-up reduced melting stress and improve the quality of follow-up cladding. Preheat the main flame gun heating, induction heating and internal heating stove, which used the first two heating the substrate surface in a range of warm, warm-up and laser cladding can be achieved simultaneously. As the warm-up reduces the surface of the cooling rate, which may cause the laser cladding layer together all the hardness decreased, but for some alloys (Ni alloy, etc.), the subsequent heat treatment can restore its hardness. green laser pointer in the package will be very safe.
Laser cladding is a heat treatment after the heat treatment, can be used to eliminate and reduce the residual stress in the cladding layer; to eliminate or reduce the cladding of the harmful effects of heat and cold can prevent hardening of the heat-affected zone occurs Markov body transformation. After the heat treatment furnace heated insulation commonly used, after adequate insulation, the cooling with the furnace or air-cooled down to a temperature released, including the heating temperature, holding time and cooling after the heat treatment must be as objective, the substrate and cladding The characteristics of the layer. Laser cladding process. The manipulating way ofgreen laser pointershould be strictly obeyed.