Question 1: How to remove rust on the surface of iron or stainless steel. The method is as follows:

1. Acid and vinegar method: Vinegar can remove rust. Very effective. Heat the iron first and turn off the heat. Just use a rag, dip some vinegar in it and wipe the rusty area directly. Normal rust will fall off immediately.

2. Lard method: Lard is rich in grease, so there is no need to worry about rusting. Use oil to coat the iron with lard.

3. Rice water: The decontamination effect of rice water is very strong. First soak in thicker rice water for about 2-3 hours.

Boil the rice water and rub it little by little with an iron rag while it is boiling. After rubbing the pot, wait for the rice water to boil. When the rice washing water boils, let it cool and then pour it away. Just rinse with clean water.

4. Steel balls: Steel balls can remove common stolen goods. Use steel wire to slowly rub off the rust and clean it.

Heat the iron and turn it slowly (pay attention to safety when the temperature is high), so that the oil covers all parts of the iron. Heating it until it smokes and repeating it a few times will make it less likely to rust.

5. Sandpaper or whetstone; used to remove rust quickly and thoroughly. Use sandpaper or a whetstone to remove the rust. Rinse with clean water.

Question 2: How to remove rust from stainless steel. There are four methods for removing rust from metal surfaces: manual treatment, mechanical treatment, chemical treatment and flame treatment.

(1) Manual processing

Manual processing mainly uses tools such as shovels, wire brushes, emery cloths, and hacksaw blades, and relies on manual knocking, shoveling, scraping, brushing, and sanding. To achieve rust removal, this is the traditional rust removal method for painters, and it is also the simplest method. There are no restrictions on the environment and construction conditions. However, due to the poor efficiency and effect, it can only be applied to a small range of rust removal treatments.

(2) Mechanical rust removal method

The mechanical rust removal method mainly uses some electric and pneumatic tools to achieve the purpose of removing rust. Commonly used electric tools such as electric brushes and electric grinding wheels; pneumatic tools such as pneumatic brushes. Electric brushes and pneumatic brushes use the rotation of a special round wire brush to remove rust or oxide scale by impact and friction. They are especially effective for surface rust, but are difficult to remove deep rust spots. The electric grinding wheel is actually a portable grinding machine that can be moved freely in the hand. The high-speed rotation of the grinding wheel is used to remove rust. The effect is better, especially for deeper rust spots. It has high work efficiency, good construction quality, and is easy to use. It is a kind of The ideal rust removal tool. However, care must be taken during operation not to penetrate the metal skin.

(3) Sand blasting and shot blasting treatment methods

The sand blasting and shot blasting treatment methods are the same as those used in the previous section to remove old coating films.

(4) Flame treatment method

The flame treatment method uses a gas welding gun to red-burn a small amount of deep rust spots that are difficult to remove manually, allowing the high temperature to remove the rust oxides. Change the chemical composition to achieve the purpose of rust removal. When using this method, care must be taken not to burn through the metal surface and to prevent thermal deformation of large areas of the surface.

(5) Chemical treatment method

The chemical treatment method is actually a pickling and rust removal method, which uses an acidic solution to chemically react with metal oxides (rust) to generate salts, and Break away from metal surfaces. Commonly used acidic solutions include: sulfuric acid, hydrochloric acid, nitric acid, and phosphoric acid. During the operation, the acidic solution is applied to the rusted parts of the metal and allowed to slowly react chemically with the rust to remove it. After rust is removed, rinse it with clean water, neutralize it with a weak alkaline solution, rinse it with clean water, wipe it dry, and dry it to prevent it from rusting quickly.

The pickled metal surface needs to be roughened or phosphated, mainly to increase the adhesion between the metal surface and the primer.

When diluting concentrated sulfuric acid, slowly pour the sulfuric acid into the water in the container and stir continuously. Do not do the opposite to avoid injuring people by splashing the sulfuric acid liquid.

Go buy anti-rust oil bag paint film water

Question 3: The door made of stainless iron is now rusty. How to deal with it to prevent it from rusting? Because the anti-rust layer on the surface falls off and then undergoes an oxidation reaction under the action of air to cause rust, it can be polished or painted. Spray painting/painting is more reliable, but it must be sprayed completely, otherwise the door will look like a patch. Ugly.

Question 4: How can you remove rust from 410 stainless steel? Rust is an oxide and can be removed with acid.

The easiest way is to use vinegar to remove it.

Or rub it off with sandpaper.

Question 5: How to remove the iron embroidery on the stainless steel basin? Use toothpaste or talcum powder to wipe it off

Supplement:

304 stainless steel basin does not mean that it is not Rust, maintenance guide:

1. Do not let water droplets remain on the surface. Water with high iron content may cause the formation of brown-red stains on the surface (especially urban water quality);

Recommendation: For young people who cook less, use a dry rag to wipe the water stains on stainless steel stoves and basins

2. Do not leave mild steel or cast iron cookware in the sink for a long time.

3. Do not leave rubber dishwashing tablets, wet dishwashing sponges or other cleaning pads in the sink.

4. Household products, bleach or food containing chlorine will damage the sink.

5. Do not leave pickles, mayonnaise, mustard or other salt-rich foods in the sink for a long time.

6. Do not use scouring pads, abrasive discs or abrasive materials to clean the sink.

7. For newly renovated houses, it is recommended that the water from the faucet be collected in a separate basin before using the sink, because during the renovation period, some decoration impurities will remain in the water pipes, which is why the newly installed faucet filter is easy to loosen. Out of water;

Hope this helps!

Question 6: How to remove the black rust on the stainless steel kitchen basket? How to remove the rust on the stainless steel kitchen basket? Polish the iron rust!

Question 7: How does dish soap make stainless steel iron rust? What's going on? This problem needs to be explained by electrochemistry. Electrochemical corrosion means that iron and oxygen form two electrodes to form a corrosion primary battery. Because the electrode potential of iron is always lower than that of oxygen, iron is the anode and is corroded. The characteristic is that many small bulges with different diameters will be formed on the surface where oxygen corrosion occurs, and the secondary layer is black powdery ulcer corrosion pits. The jar of your rice pudding porridge is mainly an alloy of Fe and Al, which together with some electrolytes in the dishwashing liquid form a corrosive primary battery, so it will rust.

Question 8: Why does stainless steel rust? Why does stainless steel rust? When brown rust spots (dots) appear on the surface of stainless steel pipes, people are surprised: "Stainless steel does not rust. If it gets rusty, it is not stainless steel anymore. There may be a problem with the steel." In fact, this is a one-sided wrong view due to lack of understanding of stainless steel. Stainless steel can also rust under certain conditions.

Stainless steel has the ability to resist atmospheric oxidation---that is, stainless steel, and also has the ability to corrode in media containing acids, alkali, and salt---that is, corrosion resistance. However, its corrosion resistance changes with the chemical composition of the steel itself, its additive state, usage conditions and environmental medium types. Like 304 steel pipes, in the atmosphere of dry cleansing, absolute good resistant to tarnishing ability is arranged. But if it is moved to riviera, in containing the sea fog of a large amount of salts, will soon get rusty; 316 steel pipes show excellent corrosion resistance. good. Therefore, not any kind of stainless steel can resist corrosion and rust in any environment.

Stainless steel is an extremely thin, strong, fine, and stable chromium-rich oxide film (protective film) formed on its surface to prevent oxygen atoms from continuing to penetrate and oxidize, thereby gaining the ability to resist rust.

Once this film is continuously damaged for some reason, oxygen atoms in the air or liquid will continue to penetrate or iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will be continuously corroded. There are many forms of damage to this surface film, and the most common ones in daily life are as follows:

1. Dust containing other metal elements or attachments of foreign metal particles accumulate on the surface of stainless steel. In humid air, the condensed water between the attachment and the stainless steel connects the two into a micro-battery, triggering an electrochemical reaction and destroying the protective film, which is called electrochemical corrosion.

2. Organic juices (such as vegetables, noodle soup, phlegm, etc.) adhere to the surface of stainless steel. In the presence of water and oxygen, they form organic acids. For a long time, the organic acids will corrode the metal surface.

3. Substances containing acids, alkalis, and salts adhere to the surface of stainless steel (such as alkaline water and lime water splashed when decorating walls), causing local corrosion.

4. In polluted air (such as an atmosphere containing a large amount of sulfides, carbon oxides, and nitrogen oxides), when encountering condensed water, sulfuric acid, nitric acid, and acetic acid liquid points will form, causing chemical corrosion.

All of the above situations can cause damage to the protective film on the surface of stainless steel and cause corrosion. Therefore, in order to ensure that the metal surface is permanently bright and will not be rusted, we recommend:

1. The decorative stainless steel surface must be cleaned and scrubbed frequently to remove attachments and eliminate external factors that cause modification.

2. 316 stainless steel should be used in seaside areas. 316 material can resist seawater corrosion. 3. The chemical composition of some stainless steel pipes on the market cannot meet the corresponding national standards and cannot meet the 304 material requirements. Therefore, it will also cause rust, which requires users to carefully choose products from reputable manufacturers.

Question 9: How to solve the problem of rust on stainless steel. First, remove the rust. You can use manual grinding. Remember to wipe it dry after use and keep it dry to avoid rust again.