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Don't give silly answers ...
1)what is corrosion ??
2)Give 3-4 methods of prevention of corrosion .
3) two types of cells ?
Answers
HEY USER ,
HERE IS YOUR ANSWER :-
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1) corrosion :- It is the slow eating upof the metal surface due to attack of atmospheric gases on it .
2) methods to prevent corrosion :-
# By applying paint , oil grease etc.
# electroplating with Ni , Cr etc.
# by coating with more active metal ie. by galvanization.
# Using anti-rust solutions like alkaline phosphates or chromates .
3) There are two types of cells :-
primary cells which cannot be recharged .
secondary cells which can be recharged .
HOPE iT HELPS YOU !!
Answer:
Corrosion is the process in which metals are eaten up gradually by the action of air, moisture or a chemical in their surface. Eating of iron metal is the most common form of corrosion. ... Metal Selection and Surface Conditions ,we can use also alloy in spite of using the pure one.
,Barrier Coatings
Barrier CoatingsOne of the easiest and cheapest ways to prevent corrosion is to use barrier coatings like paint, plastic, or powder. Powders, including epoxy, nylon, and urethane, are heated to the metal surface to create a thin film. Plastic and waxes are often sprayed onto metal surfaces. Paint acts as a coating to protect the metal surface from the electrochemical charge that comes from corrosive compounds. Today’s paint systems are actually a combination of different paint layers that serve different functions. The primer coat acts as an inhibitor, the intermediate coat adds to the paint’s overall thickness, and the finish coat provides resistance to the environmental factors.
Barrier CoatingsOne of the easiest and cheapest ways to prevent corrosion is to use barrier coatings like paint, plastic, or powder. Powders, including epoxy, nylon, and urethane, are heated to the metal surface to create a thin film. Plastic and waxes are often sprayed onto metal surfaces. Paint acts as a coating to protect the metal surface from the electrochemical charge that comes from corrosive compounds. Today’s paint systems are actually a combination of different paint layers that serve different functions. The primer coat acts as an inhibitor, the intermediate coat adds to the paint’s overall thickness, and the finish coat provides resistance to the environmental factors.The biggest drawback with coatings is that they often need to be stripped and reapplied. Coatings that aren’t applied properly can quickly fail and lead to increased levels of corrosion. Coatings may also contain volatile organic compounds, which can make them vulnerable to corrosion.
Barrier CoatingsOne of the easiest and cheapest ways to prevent corrosion is to use barrier coatings like paint, plastic, or powder. Powders, including epoxy, nylon, and urethane, are heated to the metal surface to create a thin film. Plastic and waxes are often sprayed onto metal surfaces. Paint acts as a coating to protect the metal surface from the electrochemical charge that comes from corrosive compounds. Today’s paint systems are actually a combination of different paint layers that serve different functions. The primer coat acts as an inhibitor, the intermediate coat adds to the paint’s overall thickness, and the finish coat provides resistance to the environmental factors.The biggest drawback with coatings is that they often need to be stripped and reapplied. Coatings that aren’t applied properly can quickly fail and lead to increased levels of corrosion. Coatings may also contain volatile organic compounds, which can make them vulnerable to corrosion.2. Hot-Dip Galvanization
Barrier CoatingsOne of the easiest and cheapest ways to prevent corrosion is to use barrier coatings like paint, plastic, or powder. Powders, including epoxy, nylon, and urethane, are heated to the metal surface to create a thin film. Plastic and waxes are often sprayed onto metal surfaces. Paint acts as a coating to protect the metal surface from the electrochemical charge that comes from corrosive compounds. Today’s paint systems are actually a combination of different paint layers that serve different functions. The primer coat acts as an inhibitor, the intermediate coat adds to the paint’s overall thickness, and the finish coat provides resistance to the environmental factors.The biggest drawback with coatings is that they often need to be stripped and reapplied. Coatings that aren’t applied properly can quickly fail and lead to increased levels of corrosion. Coatings may also contain volatile organic compounds, which can make them vulnerable to corrosion.2. Hot-Dip GalvanizationThis corrosion prevention method involves dipping steel into molten zinc. The iron in the steel reacts with the zinc to create a tightly-bonded alloy coating which serves as protection. The process has been around for more than 250 years and has been used for corrosion protection of things like artistic sculptures and playground equipment. Compared to other corrosion prevention methods, galvanization is known for lower initial costs, sustainability, and versatility.
3. Alloyed Steel (Stainless)
3. Alloyed Steel (Stainless)Alloyed steel is one of the most effective corrosion prevention methods around, combining the properties of various metals to provide added strength and resistance to the resulting p