Just after the long-term use of auto radiator, there may be break and damage, because the auto radiator just isn't mounted tightly, or perhaps the you will discover harmful substances inside the coolant which trigger corrosion, or it is damaged from the blade of the admirer. Usually, for your auto radiator with leakage, we are able to unload it kind the automobile, come across the spot of leakage from the approach to injecting water or air and mark it for further fix.
Repair and Welding of Leakage at the Crack of Auto Radiator
one. Fix and Welding in the Crack in 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 undergone long-term vibration. During the welding, we are able to clean the crack with wire brush and weld it with a welding iron.
2. Restore and Welding of Cracks in the Water Tank
(one) Brazing
Before the brazing, the crack spot will need to be burnished with emery cloth or file to the original color from the metal. Light oxydizing flame should certainly be applied during the welding so that the welding will be much firmer. Pay extra attention to the angle of the welding nozzle in case that it may well burn through.
part 2 Pasting
Before the welding, drill a Φ1.5 mm hole in the end of the crack. Then, obtain 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 fixed together. Weld the rest part in the edges.
Restore and Welding of Leakage in the Pipe of Auto Radiator
Leakage in the pipe of aluminum radiator is quite tough, so we really should deal with it according to practical situation.
1. Direct Welding
Direct welding strategy might be applied when the corrosion with the pipe is just not serious and you will discover only several 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 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 single and weld the two ends. During the expanding with the pipe, make sure to remove the dirt and water scales in the damaged 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 from the new pipe. During the pressing, soap drinking water is usually 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, might be examined by sealing test to ensure there is no a lot more leakage.
No comments:
Post a Comment