How to get rust without acidic items 30

Removing corrosive substances from metal surfaces is called rust removal, and there are five main methods:

1) Manual rust removal. It is mainly a method to use a hand hammer, shovel, knife, wire brush, and coarse abrasive cloth (paper) to treat the metal surface with rust and meet the requirements of rust removal.

2) Power tool rust removal. Also known as semi-mechanical rust removal, it is mainly a method of using air (electric) brush wheel or various derusting machines to treat the surface with rust and meet the requirements of rust removal.

3) Jet or projectile rust removal (also known as sandblasting rust removal). Mainly with the help of oil-free compressed air (or high-pressure water).

4) Chemical rust removal (also known as pickling rust removal). It is a method that mainly uses inorganic dilute acid solution to brush (spray) and soak the surface of the corroded metal and achieve the purpose of rust removal.

5) Rust remover. It is mainly a method of brushing or soaking on the rusty metal surface with a weakly acidic chemical liquid (i.e., rust remover) to remove the rust on the metal surface through chemical reaction.

According to different metal products and different needs, the most suitable method is the best way to remove rust. 】

Of course, there are some tricks that aren't scientific.

1.Peel the radish potatoes to remove rust. The kitchen knife is rusty, not only is it not sharp, but it also has nasty rust when cutting things. You can easily remove the rust by dipping the peel of a potato or radish in a little fine sand and rubbing the surface of the knife vigorously.

2.Tea residue rust prevention. Iron pots are prone to rust spots when damp, and it is difficult to remove. You can wipe the iron pot with a gauze bag filled with tea residue to prevent the iron pot from rusting.

Rice washing water rust prevention. If iron cooking utensils such as kitchen knives, spatulas, and iron spoons are cleaned and immersed in rice washing water with a high concentration, they can prevent rust spots from forming more quickly, because the rice washing water will add a protective film to them.

3.Cigarette foil rust removal. You can carefully wipe the tin foil with cigarettes dipped in table salt to not only remove the rust, but also make the cleaned bronze shiny as new.

4.Kerosene can be used to remove rust spots on the paint surface and coating surface of bicycles and vehicles.

5.This is a big move, remember: the bronze is rusty, stir together with 160 grams of fine wood chips, 60 grams of talcum powder, and 240 grams of wheat bran, pour about 50 grams of vinegar, mix it into a paste, and apply it to the copperware, and after the wind dries, the patina will come off.

Of course, it is not enough to remove rust, after removal, do not forget to protect the metal surface with anti-rust paint, or clear oil, or engine oil, or drying.

In the end, it's just to give one, add a point, and so on.

Let's use rice washing water and sandpaper! The effect is okay......

<> remove rust acidic chemicals, commonly used acids are sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, hydrofluoric acid, chromic anhydride, citric acid, oxalic acid, amino sulfuric acid.

Chemical rust removal is the use of pickling to make it chemically react with rust, so that the rust composition is changed to ferric chloride or iron sulfate, so as to achieve the purpose of rust removal. Chemical rust removal is a method that uses chemical reaction to dissolve general rust, oxide scale and various corrosion products from the surface of the workpiece without affecting the base metal. Inorganic acids and organic acids are commonly used as rust removal materials, so they are often called pickling.

White vinegar vinegar can remove the rust on the surface of the metal, put the rusty metal in the 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.

Dilute hydrochloric acid, dilute sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, chromic anhydride, citric acid, oxalic acid, amino sulfuric acid and other acids can achieve the purpose of rust removal.

The principle of rust removal is as follows:

Generally speaking, the composition of rust is the oxide of the state transport metal, such as the main component of rust is iron oxide, and the main component of patina is basic copper carbonate, in which the oxide is soluble in acid, that is, it reacts with hydrogen ions in acid to generate water and corresponding metal salts, such as the reaction of rust and hydrochloric acid, to generate water and iron chloride, ferric chloride is dissolved in water, and the leakage achieves the purpose of returning to the state to remove rust.