The foreign delegation of 200mw laser pointer

Self-fluxing alloy and alloy hardness and carbon content of boron on the hardness as boron, carbon content increases and higher, because boron and carbon and alloy of nickel, chromium and other elements to form a hardness very higher borides and carbides. Iron-based alloys for wear-resistant and easy local deformation of the parts. Iron-based alloy coating of cast iron and low carbon steel substrate; nickel-base alloy suitable for local wear and corrosion resistant parts, the required laser power density than the high iron-based alloy cladding; cobalt-based alloy coating layer requirements for corrosion and fatigue wear of parts. Self-fluxing alloys have a greater flexibility of the substrate can be used for carbon steel, alloy steel, stainless steel and cast iron and other types of materials. Self-fluxing alloy powder material classification and characteristics shown in Table 7-2. The company of green laser pointer is welcoming the foreign delegation of 200mw laser pointer.
In sliding, impact wear and abrasive wear under severe conditions, pure Ni-, Co-based, Fe-based self-fluxing alloy requirements have been incompetent, this time in the self-fluxing alloy powder by adding a variety of high melting point of the carbide, nitride, boride and oxide ceramic particles, made of a metal composite coatings. Composite powders include self-adhesive composite powder and carbide composite powder. They can be divided in accordance with the structure completely coated and non-coated type, the difference is whether the cores are coated with powder powder wrap. Powder Coated As the cores are powder coated to protect, prevent some elements in high-temperature oxidation occurs when burning, evaporation and other phenomena. Divided according to function and can be divided into hard wear-resistant composite powder (such as Co / WC, Ni / WC), high temperature composite powder, corrosion resistant composite oxide powder, lubricating antifriction composite powder and so on. Self-adhesive composite thermal spray powder is in the process, the exothermic reaction to generate its own powder coating and the substrate table driven to form a good combination of a class of thermal spray materials. Carbide carbide carbide composite powder is formed as the binder phase powder system, including (Co / Ni) / WC and (NiCr, NiCrAl) / Cr3C2 series, these materials have high hardness and good wear resistance, which (Co / Ni) / WC suitable for low temperature working conditions, and (NiCr, NiCrAl) / Cr3C2 series is suitable for high temperature working environment. The manager will have dinner with the foreign delegation of green laser pointer。
Oxide ceramic powder has good high temperature oxidation separated by heat, wear, corrosion-resistant properties, is an important thermal spray materials, including alumina and nickel oxide series. Which nickel oxide than alumina ceramic powder ceramic powder has a lower thermal conductivity and better thermal shock resistance, so the thermal protection layer is used as the main material. Although laser cladding of metal ceramic materials have many excellent properties, attention has been paid, but the problems in the application can not be ignored. The first is the base metal and ceramic materials, the linear expansion coefficient, elastic modulus and thermal conductivity and other properties vary greatly, these properties do not match, resulting in coating defects such as cracks and holes, in the course of deformation will cracking, spalling damage and so on. As the laser irradiation, the laser molten pool in the form of heat, melt the matrix and the interaction between the particles and the particles additional human-induced pool of energy, momentum and mass transfer conditions change, these make the coating composition and tissue changes result in different degrees of partial dissolution of particles, thus affecting the phase composition of the matrix, so that the original design of the composite coating matrix and reinforcement can not give full play to their strengths, resulting in burning. Thet foreign delegation of green laser pointer will stay in the company of green laser pointer for at least two weeks.