How to Fix the Leakage of Auto Radiator

Following the long term utilization of auto radiator, there may be break and harm, because the auto radiator is not fixed tightly, or the you can find damaging substances inside the coolant which cause corrosion, or it truly is broken by the blade from the enthusiast. Frequently, for that auto radiator with leakage, we can unload it kind the automobile, uncover the spot of leakage from the way of injecting h2o or air and mark it for further repair.



Fix and Welding of Leakage in the Crack of Auto Radiator



one. 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 frequently. That's since the joint has gotten 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 in the Water Tank

(1) Brazing

Before the brazing, the crack spot will need to be burnished with emery cloth or file to the original color with the metal. Light oxydizing flame might be applied during the welding so that the welding will be much firmer. Pay far more attention to the angle with the welding nozzle in case that perhaps it will burn through.



section two Pasting

Before the welding, drill a Φ1.5 mm hole at the end with the crack. Then, locate a copper or iron sheet together 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 of the edges.



Restore and Welding of Leakage at the Pipe of Auto Radiator



Leakage at the pipe of aluminum radiator is rather tough, so we should really deal with it in line with practical situation.



one. Direct Welding

Direct welding approach is often applied when the corrosion from the pipe is not serious and you will find only certain 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 h2o 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 an individual and weld the two ends. During the expanding with the pipe, make sure to remove the dirt and h2o scales in 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 from the new pipe. During the pressing, soap water might 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 fix and welding mentioned above, ought to be examined by sealing test to ensure there may be no additional leakage.