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In the entire history of the existence of this type of transport, many technologies have been invented that extend the life of a car. The AutoVzglyad portal introduces
What distinguishes an old or broken and then repaired car from a brand new car that recently rolled out of the showroom, except for a more modern design, design and a bunch of extra options? The answer is simple – the condition of the body and the coating. In a new car, the “iron” is well protected from rust with fresh paint, primer, galvanization … And in an old car, the paint is already worn out, everything is in microcracks, and most of the zinc coating of steel parts has already “worked out” .
The laws of electrochemistry are inexorable: upon contact between different metals immersed in an electrolyte (even natural water can play its part), galvanic corrosion of one of them is observed. In an iron-zinc pair, zinc is oxidized, preserving the iron of the body. In most cases, a car that has had an accident and subsequently undergone body repairs has serious doubts about the integrity of the galvanizing and the reliability of the paint’s corrosion protection.
That is, the older the car and the stronger and more often it was beaten in an accident, the more it is subject to corrosion. A banal but unavoidable fact. Although not quite. It is possible to oppose something to this – oddly enough, but the same electrochemistry will help in this. The fact is that cast or forged wheels are made of aluminum or magnesium alloys.
They have an even more powerful ability than zinc to electrochemically “recover” iron. That is, when a (usually) iron machine comes into contact with alloy wheels in a humid environment, the steel does not oxidize. At least in parts of the body near each of the wheels. In our climate there is no moisture on the road except in the summer heat. So “alloy” protection can be effective most of the year for old or worn cars in the past.
Speaking of “electrochemistry” in the automotive sector, one cannot but mention one more thing. During the seasonal tire change, tire fitters are happy to impose on car owners a “service” of lubricating wheel seats with “copper grease”. They say it would be easier to remove the drive later, six months from now.
So. Copper, the powder of which is contained in such preparations, from the point of view of the electrochemical series of metals is the same for iron as iron itself is for aluminum and zinc. That is, it is iron that is oxidized in a copper-steel pair. Therefore, do not be guided by tire fitters if your car is far from young. Treatment of the hubs of its wheels with “copper grease” will only increase the corrosion processes on the body.
What distinguishes an old or broken and then repaired car from a brand new car that recently rolled out of the showroom, except for a more modern design, design and a bunch of extra options? The answer is simple – the condition of the body and the coating. In a new car, the “iron” is well protected from rust with fresh paint, primer, galvanization … And in an old car, the paint is already worn out, everything is in microcracks, and most of the zinc coating of steel parts has already “worked out” .
The laws of electrochemistry are inexorable: upon contact between different metals immersed in an electrolyte (even natural water can play its part), galvanic corrosion of one of them is observed. In an iron-zinc pair, zinc is oxidized, preserving the iron of the body. In most cases, a car that has had an accident and subsequently undergone body repairs has serious doubts about the integrity of the galvanizing and the reliability of the paint’s corrosion protection.
That is, the older the car and the stronger and more often it was beaten in an accident, the more it is subject to corrosion. A banal but unavoidable fact. Although not quite. It is possible to oppose something to this – oddly enough, but the same electrochemistry will help in this. The fact is that cast or forged wheels are made of aluminum or magnesium alloys.
They have an even more powerful ability than zinc to electrochemically “recover” iron. That is, when a (usually) iron machine comes into contact with alloy wheels in a humid environment, the steel does not oxidize. At least in parts of the body near each of the wheels. In our climate there is no moisture on the road except in the summer heat. So “alloy” protection can be effective most of the year for old or worn cars in the past.
Speaking of “electrochemistry” in the automotive sector, one cannot but mention one more thing. During the seasonal tire change, tire fitters are happy to impose on car owners a “service” of lubricating wheel seats with “copper grease”. They say it would be easier to remove the drive later, six months from now.
So. Copper, the powder of which is contained in such preparations, from the point of view of the electrochemical series of metals is the same for iron as iron itself is for aluminum and zinc. That is, it is iron that is oxidized in a copper-steel pair. Therefore, do not be guided by tire fitters if your car is far from young. Processing the hubs of its wheels with “copper grease” will only increase the corrosion processes on the body.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
