Ways to Restore the Leakage of Auto Radiator

Soon after the long-term utilization of auto radiator, there may be break and damage, since the auto radiator is not fixed tightly, or even the there are actually damaging substances inside the coolant which trigger corrosion, or it really is broken by the blade in the fan. Typically, for your auto radiator with leakage, we can unload it type the auto, uncover the spot of leakage by the way of injecting water or air and mark it for further restore.



Fix and Welding of Leakage in the Crack of Auto Radiator



1. Repair and Welding with the Crack at the Joint of Water Tank & Outlet Pipe

The joint of lower h2o tank and the outlet pipe is the spot where cracks happen most frequently. That's because the joint has experienced long-term vibration. During the welding, we can clean the crack with wire brush and weld it with a welding iron.



2. Fix and Welding of Cracks in the Drinking water Tank

(1) Brazing

Before the brazing, the crack spot must 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 with the welding nozzle in case that it may burn through.



part 2 Pasting

Before the welding, drill a Φ1.5 mm hole at the end in the crack. Then, come across 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 mounted together. Weld the rest part from the edges.



Repair and Welding of Leakage in the Pipe of Auto Radiator



Leakage at the pipe of aluminum radiator is exceptionally tough, so we might deal with it in accordance with practical situation.



one. Direct Welding

Direct welding strategy can be applied when the corrosion of the pipe just isn't serious and you will discover only certain leakage holes. Before the welding, we might 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 a single and weld the two ends. During the expanding with the pipe, make sure to remove the dirt and drinking water scales within the broken pipe, otherwise, 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 with the new pipe. During the pressing, soap water is usually applied as lubricating solution. This method will not break the radiating fins and maintain the outlook of auto radiator.



Auto radiator, which has gotten through restore and welding mentioned above, will need to be examined by sealing test to ensure there's no much more leakage.