Just after the long-term utilization of auto radiator, there might be break and harm, since the auto radiator is not fastened tightly, or even the you will discover dangerous substances in the coolant which trigger corrosion, or it's damaged by the blade from the admirer. In general, for your auto radiator with leakage, we are able to unload it form the auto, locate the spot of leakage from the approach to injecting drinking water or air and mark it for further restore.
Restore and Welding of Leakage at the Crack of Auto Radiator
one. Repair 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 gone 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 Drinking water Tank
(one) Brazing
Before the brazing, the crack spot should be burnished with emery cloth or file to the original color from the metal. Light oxydizing flame really should be applied during the welding so that the welding will be much firmer. Pay more attention to the angle in the welding nozzle in case that it may well burn through.
part 2 Pasting
Before the welding, drill a Φ1.5 mm hole at the end of the crack. Then, locate a copper or iron sheet using 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.
Restore and Welding of Leakage in the Pipe of Auto Radiator
Leakage in the pipe of aluminum radiator is particularly tough, so we should really deal with it in line with practical situation.
1. Direct Welding
Direct welding approach is often applied when the corrosion in the pipe is just not serious and you will find only some leakage holes. Before the welding, we will need 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 with the pipe with leakage for 0.3-0.4mm with special cleaning rod. Press the new pipe into the old a person and weld the two ends. During the expanding in the pipe, make sure to remove the dirt and drinking water scales within the damaged pipe, or else, 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 h2o may be applied as lubricating solution. This approach will not break the radiating fins and maintain the outlook of auto radiator.
Auto radiator, which has experienced repair and welding mentioned above, should really be examined by sealing test to ensure there may be no far more leakage.
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