Soon after the long term use of auto radiator, there may be break and damage, since the auto radiator isn't mounted tightly, or perhaps the you'll find damaging substances within the coolant which trigger corrosion, or it truly is broken by the blade from the enthusiast. Commonly, for the auto radiator with leakage, we are able to unload it type the car, locate the spot of leakage by the method of injecting water or air and mark it for additional repair.
Fix and Welding of Leakage in the Crack of Auto Radiator
one. Repair and Welding from the Crack at the Joint of H2o Tank & Outlet Pipe
The joint of lower drinking water tank and the outlet pipe is the spot where cracks happen most regularly. That's since the joint has undergone 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 really be burnished with emery cloth or file to the original color of the metal. Light oxydizing flame might be applied during the welding so that the welding will be much firmer. Pay much more attention to the angle with the welding nozzle in case that it might burn through.
part two Pasting
Before the welding, drill a Φ1.5 mm hole in the end of the crack. Then, obtain a copper or iron sheet with all 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 fixed together. Weld the rest part with the edges.
Repair and Welding of Leakage at the Pipe of Auto Radiator
Leakage in the pipe of aluminum radiator is pretty tough, so we really should deal with it based on practical situation.
one. Direct Welding
Direct welding method may be applied when the corrosion from the pipe isn't serious and there are actually only a few leakage holes. Before the welding, we ought to 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 of the pipe with leakage for 0.3-0.4mm with special cleaning rod. Press the new pipe into the old a single and weld the two ends. During the expanding of the pipe, make sure to remove the dirt and 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 drinking water is usually applied as lubricating solution. This technique will not break the radiating fins and maintain the outlook of auto radiator.
Auto radiator, which has experienced fix and welding mentioned above, ought to be examined by sealing test to ensure there exists no more leakage.
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