Right after the long-term use of auto radiator, there might be break and damage, since the auto radiator is not fastened tightly, or the you will discover harmful substances within the coolant which trigger corrosion, or it is broken by the blade of the enthusiast. Normally, for that auto radiator with leakage, we can unload it type the auto, find the spot of leakage from the approach to injecting drinking water or air and mark it for further repair.
Repair and Welding of Leakage at the Crack of Auto Radiator
one. Fix and Welding from the Crack at the Joint of Drinking water Tank & Outlet Pipe
The joint of lower water tank and the outlet pipe is the spot where cracks happen most often. That's since the joint has gotten through long time vibration. During the welding, we can clean the crack with wire brush and weld it with a welding iron.
2. Restore and Welding of Cracks in the H2o Tank
(one) Brazing
Before the brazing, the crack spot should be burnished with emery cloth or file to the original color in the metal. Light oxydizing flame ought to be applied during the welding so that the welding will be much firmer. Pay much more attention to the angle of the welding nozzle in case that it may well burn through.
part 2 Pasting
Before the welding, drill a Φ1.5 mm hole in the end from the crack. Then, locate a copper or iron sheet with the thickness of 0.8-1mm as pasting sheet. Clean the crack and the pasting sheet and apply zinc chloride solution on they both. Press the pasting sheet against the crack closely. Heat the pasting sheet with welding iron so that they can closely mounted together. Weld the rest part in the edges.
Fix and Welding of Leakage at the Pipe of Auto Radiator
Leakage at the pipe of aluminum radiator is rather tough, so we should really deal with it based on practical situation.
one. Direct Welding
Direct welding technique could be applied when the corrosion with the pipe isn't serious and you can find only a few leakage holes. Before the welding, we must het the radiating fins and seal them off with a welding torch, push aside the radiating fins with flat nose pliers and reveal the welding spot. Check the welding spots, clean them and apply fluxes on them. Weld the leakage holes with welding iron. Then rearrange the radiating fins.
2. Expanding the Pipe
During the welding, unload the upper and the lower drinking water tank. Expand the inner hole from the pipe with leakage for 0.3-0.4mm with special cleaning rod. Press the new pipe into the old one and weld the two ends. During the expanding from the pipe, make sure to remove the dirt and drinking water scales in the damaged pipe, on the other hand, there'll be a heat insulating layer between the new pipe and the old pipe which will affects the heat dissipation effect. Polish the outside of the new pipe. During the pressing, soap h2o could be applied as lubricating solution. This approach will not break the radiating fins and maintain the outlook of auto radiator.
Auto radiator, which has undergone repair and welding mentioned above, might be examined by sealing test to ensure there is no extra leakage.
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