2009年12月1日 · As its name implies, a sacrificial anode is a conductor of electric current that is intended to be destroyed in order to protect something else. If the anode is made from a more active metal than the metal it’s designed to protect, the anode will oxidize first, thus preventing the protected metal from oxidizing.

2017年6月16日 · Has anyone on the forum tried attaching sacrificial zinc anodes to a car body to reduce corrosion?. I live in a damp, wet, tropical environment, close to the sea: this morning I lifted a lump of recycled zinc boat anode that I left sitting …

2020年2月24日 · Sacrificial anodes on cars have been shown to provide some protection on cars but they don't have that large of a radius, The Throw of protection is better for items submerged in water and on a car the water and wetness is all local, so you do better with galvanizing than a zinc electrode and you can buy that in a spray can that actually does ...

So if you screwed a bunch of anodes right on the interface or one or two millimeters thereof, you would protect your car. But you would need thousands of these anodes over your car. Modern car manufacturers often do a process called zinc electroplating on the entire chassis of the car.

2015年8月18日 · Most modern cars have aluminium heads.....there's no sacrificial anodes. Going the other way......if there's no aluminium at all in a cooling system......for example an old Ford Y block, it's all cast iron, you can run straight water and …

2012年5月29日 · Today's cars and trucks have many aluminum parts and parts made in combination with aluminum alloy. Aluminum parts may disintegrate from electrolysis in the cooling system. Installing a Flex-a-lite zinc anode will protect your cooling system from galvanic action by "eating" the zinc rather than your cooling system.

2014年6月14日 · As far as I understand it, you need an electrolyte to complete the circuit. A sacrificial anode works on a boat or in plumbing because the (impure) water acts as the electrolytic medium. The zinc then acts as the anode, dumping out electrons so that the zinc can oxidize and everything else stays reduced.

2010年2月28日 · If you found a way to attach anodes to your car, they would be effective to a short, finite distance from the anode. Any metal farther away from the anode will not be protected. I don't know what the distance is, but I imagine if it did work, somebody would have caught on by now and all cars would have anodes on them, instead of the expensive ...

2007年2月27日 · A sacrificial anode is effective on a ship or an underground tank where the *metal* *being* *protected* is in direct contact with the *solution* (ocean water or underground moisture) in which the anode is immersed.

This device allows maintaining several decimal parts of volts on the car body enough to stop the rusting process and start destructing protective electrodes (Anodes). Anodes can be the same metals as car bodies (such as iron or aluminum) or other materials like magnetite and graphite.