Processing molding method of magnesium alloy plate type heat exchanger
A plate heat exchanger, magnesium alloy plate technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of unstable quality of aluminum alloy evaporation plate or condensation plate, wall thickness of aluminum alloy profiles, and complex structural forming. , The heat exchange efficiency of the plate heat exchanger is not too high, to achieve the effect of saving material and processing costs, reducing welding deformation, reducing welding heat input and thermal stress
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Embodiment 1
[0055] see figure 1 and figure 2, two AZ91 magnesium alloy plates with a length of 1.5m, a width of 0.8m, and a thickness of 1.8mm are processed and processed. Rolling forms the surface micro-pattern, adopts the method of friction stir welding, with the welding process of the rotation speed of 800r / min and the welding speed of 150mm / min, two magnesium alloy plates are welded into honeycomb joints with a total of 880 equidistant points, 4 The length of the isolated welding bead is 1300mm, and the surroundings are sealed and welded; the aluminum-copper composite inlet pipe and the aluminum-copper composite outlet pipe are sealed and connected with the magnesium alloy evaporation plate body by arc welding; The alloy evaporation plate is bulging to form a honeycomb type evaporation plate with a hollow channel with dimple-like corrugations on the surface; then perform other post-welding processes and apply pressure, such as stress relief annealing, grinding, painting, etc. Final...
Embodiment 2
[0057] see figure 1 and image 3 , two AZ61 magnesium alloy plates with a length of 1.5m, a width of 0.8m, and a thickness of 1.8mm are processed and processed. Rolling forms the surface micro-pattern, using the method of friction stir welding, with the welding process of the rotation speed of 800r / min and the welding speed of 150mm / min, the fourteen equal-spaced welds of two magnesium alloy plates are welded into the middle weld. Seal and weld the surroundings; the aluminum-copper composite inlet pipe and the aluminum-copper composite outlet pipe are sealed and connected with the magnesium alloy condensing plate body by arc welding; the inflation positioning mold is used to bulge the magnesium alloy evaporating plate through high-pressure gas, Make it into a serpentine flow channel type evaporating plate with concave and convex surfaces alternated with semi-cylindrical curved and serpentine hollow flow channels; then perform other post-welding processes, apply pressure, such...
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