Right after the long term utilization of auto radiator, there could be break and damage, since the auto radiator is not fixed tightly, or even the you'll find damaging substances in the coolant which cause corrosion, or it truly is damaged by the blade with the enthusiast. Typically, for the auto radiator with leakage, we are able to unload it type the vehicle, locate the spot of leakage by the way of injecting drinking water or air and mark it for additional repair.
Repair and Welding of Leakage at the Crack of Auto Radiator
one. Repair and Welding with the Crack at the Joint of Water 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 experienced 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 at the H2o Tank
(one) Brazing
Before the brazing, the crack spot will need to be burnished with emery cloth or file to the original color in the metal. Light oxydizing flame really should be applied during the welding so that the welding will be much firmer. Pay much more attention to the angle from the welding nozzle in case that it could burn through.
part two Pasting
Before the welding, drill a Φ1.5 mm hole at the end with the crack. Then, come across 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 both of them. Press the pasting sheet against the crack closely. Heat the pasting sheet with welding iron so that they can closely fastened 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 ought to deal with it according to practical situation.
1. Direct Welding
Direct welding approach may be applied when the corrosion of the pipe is not serious and you will find only several leakage holes. Before the welding, we really should 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 1 and weld the two ends. During the expanding from the pipe, make sure to remove the dirt and drinking water scales inside 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 in the new pipe. During the pressing, soap 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 gotten through fix and welding mentioned above, will need to be examined by sealing test to ensure there's no a lot more leakage.
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