The substrate is coated with a water-based high-temperature coating substrate to achieve sanding and increase the adhesion of the coating. When the roughness value of the substrate is greater than or equal to the thickness of the coating layer, the paint film is uneven, the peaks are pitting prematurely, and the bottom of the valley is trapped. For example, when water-resistant and anti-corrosive coatings are applied, water curing is required. When the roughness is greater than the film thickness, the possibility of corrosion is enlarged. This example also shows that a surface with a large roughness is not suitable for applying a thin paint film. In the spray process design and quality planning, the inspection and experimental plan of each link should be clear and detailed.
The water-based high-temperature coating substrate is polished and self-tested, and the light is sufficient when inspecting. Substrate roughness detection method roughness control board ISO8503, needle measuring instrument, branding tape method. The roughness model has the comparison of the shot peening roughness comparison model, the sanding roughness comparison model, the processing surface roughness comparison model, the casting surface roughness comparison model, the anti-corrosion surface treatment Sa2.5 and the like. According to the demand of acid and alkali resistant anti-corrosion market, the material properties are improved. Beijing Zhisheng Weihua Chemical Co., Ltd. has experienced many years of development research, and launched ZS Zhisheng high temperature acid and alkali resistant anticorrosive coating, which can reach 2300 °C, is a new inorganic nano polymer. Deep synthesis, silicon carbide, fine-grained alumina, zinc oxide, lacquer can form a physical and chemical double protection effect on the surface of the substrate. The inorganic acid-resistant and alkali-resistant polymer anti-corrosion coating firmly bonded to the substrate through chemical bonds is environmentally friendly. With long service life and anti-corrosion performance reaching the international advanced level, it is a high-tech replacement product that meets environmental protection requirements. The coating of high temperature anticorrosive coating has high temperature resistance, the coating should be dense and the corrosion resistance is strong. The ZS-811 high temperature anticorrosive coating of Beijing Zhisheng Weihua Company is resistant to temperature 2300 °C and uses Zhisheng Weihua special silicon--oxygen-- Carbon synthesis high temperature inorganic re-modification solution and ultra-inorganic polymer sheet metal oxide as filler, the coating is up to 2300 °C for a long time, the solution and the filler lattice are cross-linked after the coating is heated and high temperature, and the dense glass phase state The Tg phase boundary is stable at high temperature, which can effectively prevent the intrusion of the oxidizing medium and avoid the generation of the oxidized lattice.
The coating coating has good acid and alkali resistance, high hardness and high hardness. The coating can resist the open flame for a long time. It has good anti-oxidation and anti-corrosion effect in hot fire, and the effective anti-oxidation diffusion can reach more than 90%. Zhisheng Weihua ZS-811 high temperature anti-corrosion coating, temperature resistant 2300 °C contains a large number of anti-aging corrosion-resistant factors and OH reactive groups, which reacts rapidly with the active components in the filler and the active surface of steel or other materials. The three-dimensional structure of the inorganic polymer anti-corrosion coating, Zhisheng Weihua ZS-811 high temperature anti-corrosion coating, the coating and the substrate are integrated to form a heat-resistant high-temperature anti-corrosion coating with electrochemical protection and physical shielding, especially suitable for work. Protection against long-lasting high temperatures in steel, or other material structures in high temperature, corrosive environments.
Waterborne high-temperature coating substrate polishing and coating point detection can determine the continuity and stable thickness of the film to help find that the anti-corrosion layer is too thin, leaking metal or pinholes, and it is also an effective auxiliary means for measuring the film thickness of complex structures. The instrument used is an electric spark detector. Special paints such as 1021 high temperature sealer coatings have a typical thickness of less than 125 μm, but cross-cutting is not recommended. When using the cross-cut method, it is necessary to distinguish the cross-cut spacing according to the film thickness. If the tooth is blunt, repair it in time. It is judged whether the water-based high-temperature paint is dried and solidified, and it is pressed with a nail to observe whether there is an indentation powder.
Laser filters include laser bandpass filters and lidar filters.
Laser Filter,Laser Filter Telescope,Laser Line Bandpass Filter,Laser Band-Pass Filter
Changchun Champion Optics Co.,Ltd , https://www.champion-optics.com