I doubt this is useful since this was posted 4 years ago, but carbon anodes have to be replaced in commercial use because they react with the oxygen that is reacts with (or so i think), and therefore the co2 that comes from the carbon and metal oxide in the displacement reaction makes the carbon anodes turn into co2 and therefore these anodes need to be replaced
Carbon anodes in aluminium production are consumed during the electrolysis process, where they react with oxygen to form CO2 gas. As they are consumed, the anodes wear down and lose their efficiency in delivering electrical current to the electrolytic cell. Regular replacement is necessary to maintain production efficiency and quality of the aluminium being produced.
Because due to the exponential gravitational section of the geometric oscillation in the midst of transnational confrigiration, the diocese and several objects accelerating at a rapid velocity, IT IS PHYSICALLY IMPOSSIBLE.
Zinc anodes can help protect buried water tanks or any buried steel structure from external corrosion. The use of zinc anodes protect a structure from corrosion by a principle is known as cathodic protection. Corrosion is an electrochemical reaction where the reaction can be separated into two halves (two half-cell reactions): the anodic and the cathodic reactions. Deterioration (or corrosion) of the metal occurs at the anode. When zinc is in electrical contact with the steel and immersed in the same liquid, the zinc become the anode and the steel structure becomes the cathode. The zine is preferentially corroded, leaving the steel structure protected. To protect a steel tank, the anodes should be buried and evenly distributed around the tank. Deep anodes are sometimes needed to protect tanks with large flat bottoms. The holes around the anode are often filled with carbon to ensure good electrical contact with the ground water. Electric cables need to connect the zinc anodes to the steel. The anodes do not protect against internal corrosion of the tank.
I would have to say that anyone who camps would buy a tent so it is a frequently purchased item, but those who camp all the time would need other accessories that need to be replaced more often then tents, making those items the most frequently purchased.
No, computer keyboards and mice are generally not considered consumable products. Consumable products are items that are used up and need to be replaced frequently, such as printer ink or paper. Keyboards and mice, while they may wear out over time, are typically designed for longer-term use and can be replaced less frequently than consumables.
If you mean the lamp itself, decades. If you mean the bulb or element, those may need to be replaced rather frequently based on usage.
horses that are frequently exercised need feed with higher fiber and less suger,
you need to get your drivers license replaced when your current one expires. look at the license's and you'll see a date(not your birth date) & that's when you need to get it replaced.
A damaged crankshaft will need replaced.A damaged crankshaft will need replaced.
The answer is Need for Speed Carbon Carbon Came In 2006 , Undercover in 2008
If you're having to put air in your tires frequently then your tires probably need replacing. Also if the tread on the tires is worn down they should be replaced (a symptom of worn tread is the tires squealing on the road for no apparent reason).