What should I do with common metal rust?

Use rust removers such as dilute hydrochloric acid and dilute sulfuric acid to clean, or polish off the rusted areas on the metal surface, and finally do anti-rust treatment, such as keeping the surface of iron products dry, painting and oiling the metal surface, or plating other metal layers on the metal surface, etc.

Vinegar White vinegar can often be suitable for small items, such as earrings. Just a little vinegar pour into a glass and let the item have a good soak. After you see that the rust has dissolved, rinse it with clean water and dry the jewelry with a cloth.

Vinegar can also be used for larger projects. Either pour it directly onto the product or use a piece of cloth to put it on. When the rust dissolves, wipe the thing, then wash and dry if necessary.

Baking soda with baking soda is another type of metal to remove rust. You can make a paste mixed with baking soda and water. Make sure the solution is that the pie sticks enough to the surface and then spreads to the metal and lets it sit.

After rusting, it is loose and can be scrubbed off. If the rust stains are very deep, removing them may require additional application of paste. Baking soda cream can also be used in other different ways around the house, which is a good alternative to many toxic household cleaners.

Rough Material If you want to remove rusty metal and don't mind a little tricky work, you can try removing it manually, with sandpaper or another coarse item such as steel wool. This may take a while though. If the rust is extensive, it may take several attempts to proceed to clean the metal.

Rust prevention Of course, it is best not to rust on all metals. Keep the metal as dry as possible to help prevent rust, because water is what sets the stage of rust that appears. Prevention isn't always possible, however, especially if you're ** with a lot of humidity, so it's a good idea to attack the rust right away before it starts to eat away at the metal.

Remember, the longer the rust is not timely**, the harder it is to remove and the more serious the damage.

The common metals we speak of are steel, aluminum, and aluminum alloys, and copper and copper alloys.

When the above metals are rusted, the corresponding metal rust remover can be used to deal with the rust.

Metal rust removers can effectively and completely and quickly remove metal from metal surfaces, protecting them from corrosion.

Ordinary iron rust with steel brushes, sandpaper, etc. to remove rust, brush a layer of anticorrosive paint, you can be.

Hope it helps.

What to do if the metal rusts? Let's teach you the easiest way to deal with blackening.

Common metal rust removal methods:

1. Aluminum products: Soak the aluminum products with black spots in the vinegar dilution, take them out after about ten minutes, and rinse them with water to remove rust.

2. Copper products: dip a cloth in vinegar, then add fine salt grains to rub and wipe, and finally rinse with water to remove rust.

3. gold and silver ornaments; Directly soak the jewelry in dilute acid for a few minutes, and treat it with water after taking it out, so that the jewelry is as clean as new.

It is not easy to remove metal rust, so it is best to pay attention to preventing metal rust.

The treatment method of ferrous metal rust is as follows:

1. Physical method, use steel wool ball to brush or sandpaper to polish until bright, in short, try to remove the rust.

2 chemical method, use an acidic solution that has been diluted to a lower concentration, such as white vinegar, and wipe dry with a cloth after cleaning.

3. Use rust removal powder.

Vinegar can remove rust from the surface of the metal, put the rusty metal in white vinegar, let it stand for a few hours and then wipe off the remaining rust stains. If it's too big to soak in white vinegar, pour a layer of white vinegar on top and let it sit for a while. You can also wipe off rust stains with a rag soaked in white vinegar.

Lime with salt

First, sprinkle salt on the rusty area, then squeeze the orange juice and pour it over the salt, and finally let it sit for 2 to 3 hours, and finally scrape off the remaining rust stains, and use the lime peel to wipe off the remaining rust stains on the metal. It effectively removes the rust layer without damaging the metal surface. If you don't have lime, you can also use lemon instead.

Baking soda paste

Take out the appropriate baking soda, add water to the baking soda and mix it into a paste, apply the baking soda paste, leave it for a while, and then scrub it clean.

Potatoes and dish soap

Cut the potatoes in half and apply dish soap to the cut side. They react chemically with the rust layer, making it easier to remove.

Rust removal tips for metal picture frames:

If the metal frame is rusty, you can wipe it with potato skin, and you can wipe it off.

Silverware rust removal tips:

If a silver spoon or other silverware is rusty, wipe it with toothpaste to make it shiny.

Tips for removing patina:

Bronze utensils, especially copper utensils, are rusty, which is not only unsightly, but also prone to food poisoning. To get rid of the patina, you can use this method: use 160 grams of fine wood chips, 60 grams of fossil powder, 240 grams of wheat bran and pour about 50 grams of vinegar together, mix it into a paste, apply it to the copperware, and after the wind dries, the patina will be removed.

Tips for removing rust spots:

1. Wipe the stain with 15% acetic acid solution (15% tartaric acid solution is also acceptable), or soak the part stained with rust spots in the solution, and rinse it with water the next day.

2. Wet the rust spots with 10% citric acid solution or 10% oxalic acid solution, then soak them in concentrated salt water, wash and rinse them the next day.

3. If the white cotton fabric and blended textiles are stained with rust, you can take a small grain of oxalic acid (available in pharmacies) and put it on the stain, drip some warm water, rub it gently, and then rinse it off with water. Pay attention to the operation to be fast to avoid corrosion of clothing.

4. If there is fresh lemon at home, you can squeeze out some juice drops and rub it on the rust stain by hand, repeat it several times until the rust stain is removed, and then wash it with soapy water.

Rust removal tips for metal appliances

1. Wipe the rusty kitchen knife and fork with the cut shallots, and the rust will be removed.

2. The yellow-brown stains of white tiles and ceramic basins, bathtubs, etc., are heated with the same amount of salt and cool mixture, and applied to the ones that need to be scrubbed. place, let it stand for half an hour and then scrub it, you can restore the porcelain to white.

3. Apply the dissolved blue alum to the rust place, and after 1 hour, the rust will be easily wiped off, and the serious rust can be wiped again.

4. Soak the iron in rice washing water often to prevent the iron from rusting; Rusty ironware can be easily removed by soaking it in rice water for 5 hours, picking it up and wiping it.

5. To remove rust from copperware, you can use gauze dipped in vinegar and salt water to wipe hard, rinse with water and then wash with detergent, when it is not completely dry, wipe with special oil for copperware, and finally wipe the water with a dry towel.

6. Use radish slices or potato slices and a little fine sand to scrub the rust of the kitchen knife, the rust is easy to remove.

7. Pound the paraffin wax into fine powder, add the same amount of kerosene, put it in a warm place to dissolve the paraffin, mix it with kerosene thoroughly, apply it to the rusty utensils, and wipe it with a cloth after 24 hours, and the rust can be removed. If iron tools are not used for a period of time, this solution can be applied to the utensils, which can effectively prevent rust.

1. Composition alloy method.

Adding some other elements to iron to change the internal structure of iron, such as adding chromium, nickel and other metals to ordinary steel to make stainless steel, greatly increases the rust resistance of steel products.

2. Coating protective layer method.

Coating mineral oil, paint or firing enamel, spraying, etc., such as: cars, buckets, etc. are often painted; The machine is often coated with mineral oil, etc.

3. Electroplating method.

The surface of iron products is plated with a layer of metal that is not easy to rust, such as zinc, tin, chromium, nickel, etc. These metal surfaces form a dense oxide film, which prevents iron products from rusting in contact with water, air and other substances.

4. Use chemical methods to form a dense oxide film.

A dense and stable oxide film is formed on the surface of iron products by chemical methods to prevent rust of iron products.

5. Keep the iron surface clean.

Keeping the surface of iron products clean and dry is also a good way to prevent iron products from rusting.

The main factors that cause metal rust: (1) Atmospheric relative humidity At the same temperature, the percentage of the water vapor content of the atmosphere and its water vapor saturation content is called the relative humidity. The rate of metal corrosion is small below a certain relative humidity, and increases dramatically above this relative humidity.

This relative humidity is called critical humidity. The critical humidity of many metals is in.

Between 50 and 80, steel is about 75Atmospheric relative humidity has the greatest effect on metal corrosion. When the atmospheric humidity is higher than the critical humidity, water film or water beads appear on the metal surface, if the harmful impurities contained in the atmosphere are dissolved in the water film and water droplets, it will become an electrolyte and aggravate corrosion.

2) Air temperature and humidity The correlation between atmospheric temperature and humidity affects metal corrosion. This has the following main conditions: first, the water vapor content of the atmosphere increases with the increase in temperature; Second, high temperatures increase corrosion, especially in humid environments, where the higher the temperature, the faster the corrosion will be.

When the relative humidity is low, the effect of temperature on rust is not obvious, but when the relative humidity is higher than the critical humidity, the amount of rust increases sharply with the increase of temperature. In addition, if there is a temperature difference between the atmosphere and the metal, condensation will form on the surface of the metal at low temperature, which will also cause the metal to rust.

3) Corrosive gases The corrosive gases polluting the air, sulfur dioxide has the greatest impact on metal corrosion, especially to steel, copper and their alloys. Sulfur dioxide in the atmosphere is mainly used in the combustion of coal. At the same time, the combustion product carbon dioxide also has a corrosive effect.

Corrosive gases are mixed in the atmosphere around the plant. For example, hydrogen sulfide, ammonia, hydrochloric acid gas, etc. are all factors that promote metal corrosion.

4) Other factors The atmosphere contains a large amount of dust, such as smoke, coal ash, chloride and other acids, alkalis, salt particles, etc., some of which are corrosive, or the condensation nuclei of water droplets, which are also rust factors, such as chloride is considered to be the mortal enemy of corrosive metals.

Rust prevention methods for metals:

The anti-rust method is to take preventive measures against the causes of metal rust. Since metal rust is caused by moisture, high temperature, oxygen, sulfur dioxide, chloride, dust and other factors, rust prevention should avoid or slow down the metal rust caused by these factors. At present, the anti-rust methods used are:

Adding certain elements during metal smelting to improve the metal's ability to resist the erosion of external media; Corrosion-resistant surface treatment of metal products to form a surface conversion layer or add a surface cladding; Cathodic protection, that is, the use of rust inhibitors, vapor phase corrosion inhibitors, peelable plastics, seals and other methods to temporarily isolate the metal surface from the external environment.

The anti-rust period of this method can reach several months to several years, and the application is relatively common.

Isolated from air to prevent metal oxidation.

Antioxidant Methods:

Plating alloys.

Bluing treatment, painting.

Electrochemical preservative.

Paint, difficult to oxidize the film. For example, copper plating.

Calcination is carried out directly to form a dense oxide film on the surface of substances that are easily oxidized.

Oiled galvanic cells are designed to protect metals that are susceptible to oxidation.

Antiquity: oiled, painted.

Present: electroplating, alloys, blue paint, electrochemical corrosion.

Commonly used methods to prevent iron rusting are:

1) Forming alloys to change the internal structure of iron For example, adding chromium, nickel and other metals to ordinary steel to make stainless steel greatly increases the rust resistance of steel products

2) Covering the surface of iron products with a protective layer is a common and important way to prevent rust of iron products According to the different components of the protective layer, it can be divided into the following types:

a. Coating the surface of iron products with mineral oil, paint or firing enamel, spraying, etc. The machine is often coated with mineral oil, etc.

b Plating a layer of metal that is not easy to rust by electroplating, hot plating and other methods on the surface of steel, such as zinc, tin, chromium, nickel, etc

c. Use chemical methods to generate a dense and stable oxide film on the surface of iron products to prevent rust of iron products

3) Keeping the surface of iron products clean and dry is also a good way to prevent iron products from rusting

If none of the above helps you, then you can try wrapping it in plastic film to see how it works.

We hope you find the following precautions helpful:

1.Oil rust prevention, this method is too greasy and polluting, not only not beautiful, but also the rust prevention effect is not ideal. The anti-rust method of unclean oil is less effective than desiccant and traditional paper packaging, and the cost is higher.

2.Anti-rust paper: Anti-rust paper is an economical and environmentally friendly anti-rust packaging material, which is used for the packaging, transportation and storage of iron or non-metallic parts with small volume; The anti-rust effect is relatively fast and simple to use.

It has the best moisture-proof, anti-rust and anti-corrosion functions. It also has the characteristics of long anti-rust time, safe use, beautiful packaging and low cost, and has been widely used at home and abroad, becoming an indispensable anti-rust material for industrial products and parts packaging, and is very suitable for anti-rust between processes and warehousing in the machining industry.

3.Anti-rust film anti-rust: (characteristics are the same as above).

Adopt paint protection or wax spraying to prevent rust: Wax spraying is to spray a layer of wax protective film on the metal surface to isolate the metal surface from moisture, so as to achieve the purpose of rust prevention. This method is simple to use, needs to be cleaned with hot water when removed, and is a safe and environmentally friendly disposable anti-rust material.

In addition to the above methods, the iron storage environment should be kept dry, and the humidity should not be higher than 50%.