What can be used to remove rust when the key is rusty?

Hydrochloric acid goes to the kind of steel mills that are available, and you can ask for a little. It's not worth the money. Sulfuric acid can also be used, but it is not as good as hydrochloric acid and it is not safe for hydrochloric acid, but you must pay attention to whether you use hydrochloric acid or sulfuric acid, do not occupy the **! The consequences are unimaginable.

Rust remover: It can quickly remove rust spots on ferrous metal surfaces, copper, iron, marble, ships, electroplating parts, bicycle chains, farm tool parts, mechanical equipment and parts, precision metal products and parts, etc.

How to use: Use soaking, brushing or spraying, the best soaking method is used.

After rust removal, a large amount of water should be used to rinse the residue, if rust needs to be prevented after rust removal, it should be washed with a large amount of water, neutralized and passivated with 5% sodium hydroxide solution, wiped dry and then sprayed with rust inhibitor for protection.

We must not only do things well, but also do them conveniently and safely, and it is not worth it to use the method of burning houses and driving away rats to achieve the goal. Why bother with a small rusty key? Soak it in vinegar, wipe it dry, apply some sewing machine oil and dry it, wouldn't it be good?

The next time it rusts, it will be brewed in the same way. It's convenient, it's safe, why not?

Scrub it off with white toothpaste.

The best way to do this is to use pencil lead shavings, which are better and cleaner than oil.

If you have sweat on your hands, you will rust, so wash them with a cotton swab with hydrochloric acid, be careful.

The keys to the house are rusty, teach you three small ways to remove rust easily.

The method of rapid rust removal is white vinegar to remove rust, baking soda to remove rust, etc.

1. White vinegar to remove rust

Although white vinegar is only a common condiment in life, white vinegar is a very acidic item, so the effect of removing rust with white vinegar is excellent, and white vinegar itself is food, so removing rust with white vinegar will not affect the normal use of the item.

2. Baking soda to remove rust

Everyone uses baking soda for cleaning in their daily life, in fact, baking soda is also very effective in removing rust, and it is cleaner. Dilute the baking soda with water, try to dilute it into a paste, apply the mingling and lull baking soda of the paste to the surface of the iron product, wait until the pasty baking soda solidifies, and wait for a period of time to clean it up.

Introduction to the anti-rust treatment method

Anti-rust can be applied to the items to be protected by electroplating or hot-dip galvanizing. There are many reasons for the use of zinc, including its cheapness, good adhesion to iron, and when zinc and iron are in contact, zinc and iron will form a battery, due to the strong activity of zinc, zinc is the anode of the battery, which will be oxidized, so as to protect the iron of the battery cathode from being oxidized.

In more corrosive environments, cadmium is used instead of zinc. If the plating is near the joint, joint or hole, the coating will be damaged due to external force or processing, and the object to be protected cannot be completely covered, so the coating can only be protected by anode protection. In some advanced coatings, aluminum will be added in addition to zinc, and aluminum will be transferred to the damaged part of the plating, and both aluminum and zinc oxide can protect the iron, and the effect is better.

Hello, dear: the key rust can be removed like this: 1

Use detergent: Soak the key in the detergent, after about 15-20 minutes, scrub with a toothbrush, then rinse with clean water and wipe dry with a dry cloth. 2.

Use vinegar or lemon juice: Soak the key in vinegar or lemon juice, after about 30 minutes, scrub with a toothbrush, then rinse with clean water and wipe dry with a dry cloth. 3.

Use sandpaper: Rub the sandpaper against the key until the rusty part is removed, then rinse with water and dry with a dry cloth. 4.

Use oil: Soak the key in the oil for about 15-20 minutes, then wipe it dry with a dry cloth. Either way, you need to pay attention to safety to avoid injuries caused by slipping the key.

In addition, it is recommended that before using the key, it can be coated with a thin layer of anti-rust oil, which can play a certain role in rust prevention.