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Qingdao Newtep Dry Ice Jet- Decarbonization / Remove carbon deposits
There are car repair and maintenance knowledge you don`t know, and the true stories behind those illusions. If you want to become a real car expert, here will be one of the better ways for you to add knowledge. Regarding the known, unknown, curious, and ignorant of the car, you can find the answer here. For both you and me, this may be a new beginning!
Carbon deposition is an unavoidable problem for almost every car. No matter whether it is Japanese, American, European, high-end or low-end brands, it cannot escape the clutches of carbon deposition. As soon as the carbon deposits increase, engine failures follow, and jitter, fuel consumption increase, and power drop are all within its menu.
The same is true for the engine in front of me. After 100,000 kilometers, the above symptoms have begun to be gradually fulfilled.
After removing the spark plug, use an endoscope to check the carbon deposit in the cylinder. A large amount of carbon deposits gathered on the top of the piston, a thick layer, completely invisible to the bright white of the previous aluminum alloy.
So much carbon deposits will have a huge impact on the engine and must be removed.
It is more difficult to remove the carbon deposits on the piston crown, because the piston is in the innermost part of the engine. Although the use of foam cleaning can remove part of the carbon deposits, it is necessary to refill the foam multiple times if it is to be completely removed. Both the time cost and the labor cost are high.
There is a new way to remove carbon with dry ice, which is what we often call solid CO2.
These white strips are dry ice, which looks very similar to the state of ice cubes, and they will be used in a short while.
The dry ice decarbonization method has two main decarbonization principles.
1. High-speed impact
Using high-pressure air to give dry ice a certain acceleration, the impact of dry ice can wash away the deposited carbon. In this respect, it is very similar to the method of sandblasting and rust removal and walnut sand removal.
2. Thermal shock effect
When dry ice comes into contact with carbon deposits, it will instantly sublimate and absorb a lot of heat. Carbon deposits will also cause certain cracks due to the sharp drop in temperature and the surface of the piston. Such cracks are more likely to cause the carbon deposits and the cylinder to peel off.
Remove the spark plug and insert the nozzle of the decarbonizer directly into the cylinder to remove the carbon.
Inside the cylinder, dry ice continuously hits the carbon deposits, and the residues of the carbon deposits will gush out of the cylinder along with the airflow of high-pressure air recoil.
In order to deal with different engine designs, there are also a variety of nozzles that can be selected. The spark plug positions of some American models and V-engines are designed to be unique, and it takes a lot of effort to see them. At this time, some bendable pipelines are needed.
On the spray gun, you can see the carbon deposits that have been beaten into powder. The carbon deposits are almost completely wiped out under the pressure of more than a dozen BARs.
After removing the carbon deposits, the original bright metal color can be seen again on the piston crown.
The method of removing carbon with dry ice takes almost the same time as the method of removing carbon with walnut sand. Each cylinder takes about ten minutes, and all operations of a four-cylinder engine take almost an hour.
In the past, you might not have thought that dry ice can also be used to repair cars. But this incident happened right before your eyes, and the effect was amazing. Technology is the primary productive force. This sentence is now more and more empathetic. As a practitioner in the automotive aftermarket, I am deeply shocked by the power of technology. Perhaps in the days to come, more and more intelligent products appear, and the automotive aftermarket can take a bigger step forward.