The relatively mature spraying system was widely used in the United States in the 1980s, even 2-3 times the speed of sound, and the air flow speed was 4 times the speed of sound. Universal application. Jet.kote lI NovaA is optimized and improved spraying Jet.kote is the earliest spraying system. Jet.kote II is mechanically bonded, with high bonding strength (77MPa) and low coating porosity (1%). This process has a low heating temperature (93 "(2)) for the workpiece, and the workpiece is not deformed, so it can be cold sprayed. When spraying, the flame temperature is high (2650-2870" (2), the powder particle speed is high (1370m/s), and there is no heat affected zone. The composition and structure of the workpiece have no change, and the coating hardness is high, so it can be machined.

3. The caliber of the range caliber sensor is not necessarily the same as the pipe diameter, but must be determined according to the actual flow rate, and the caliber of the flowmeter shall be selected according to the calculation formula. For industrial water transmission and other liquids, the flow rate of the general pipeline is 1.5~3m/s. The electromagnetic flowmeter is used in such pipelines, and the sensor diameter is the same as the pipe diameter.