Immediately after the long-term utilization of auto radiator, there could be break and harm, because the auto radiator is not fixed tightly, or even the you will find damaging substances within the coolant which cause corrosion, or it is damaged from the blade with the enthusiast. Most often, for the auto radiator with leakage, we are able to unload it form the auto, discover the spot of leakage from the means of injecting h2o or air and mark it for additional repair.
Fix and Welding of Leakage in the Crack of Auto Radiator
1. Fix and Welding in the Crack at the Joint of Drinking 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 gone through long-term vibration. During the welding, we are able to clean the crack with wire brush and weld it with a welding iron.
2. Repair and Welding of Cracks at the Water Tank
(one) Brazing
Before the brazing, the crack spot should be burnished with emery cloth or file to the original color of 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 of the welding nozzle in case that it could burn through.
part 2 Pasting
Before the welding, drill a Φ1.5 mm hole at 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 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 in the edges.
Restore and Welding of Leakage at the Pipe of Auto Radiator
Leakage in the pipe of aluminum radiator is particularly tough, so we will need to deal with it as per practical situation.
one. Direct Welding
Direct welding approach is often applied when the corrosion from the pipe is just not serious and you will discover only quite a few leakage holes. Before the welding, we 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 in 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 from the pipe, make sure to remove the dirt and drinking water scales inside the damaged pipe, otherwise, there will 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 could be 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 repair and welding mentioned above, should really be examined by sealing test to ensure there's no a lot more leakage.
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