How to maintain and clean the metal photo frames provided by Ningbo 1 and how to maintain and clean the metal photo frames provided by Ningbo: how to maintain and clean the raw materials/tools for gold ornaments;
Gold jewelry, toothpaste, toilet water, clear water, cotton swabs, rice washing water, vinegar.
Or: 2 grams of salt, 7 grams of baking soda, 8 grams, 60 ml of water.
Methods/steps:
(1) Wash gold ornaments with toothpaste. Dip some toothpaste with a small toothbrush and brush it with gold ornaments. Cleaning gold ornaments with clear water can restore luster and brightness as new.
(2) Use toilet water. Dip cotton swabs in toilet water and gold jewelry.
(3) Wash the gold ornaments with rice washing water. Soak jewelry in rice washing water where cotton swabs can't reach.
(4) Use nail polish to maintain gold ornaments. Apply a layer of nail polish to the surface of new jewelry. Good nail polish can protect the luster of gold jewelry.
(5) Cleaning the black film of gold ornaments. Use 2 grams of salt, 7 grams of baking soda, 8 grams of water, and 60 ml of water to soak the jewelry 1 to 2 hours. Then wash it with clear water.
(6) Wash the gold ornaments of Fawu. Soak the ring in salt and vinegar and take it out to dry.
Maintenance method
1, cleaning chemicals will change the color of gold, so take off the gold ornaments before cleaning.
2. Avoid direct contact with volatile substances such as perfume and hair gel, otherwise it will easily lead to the fading of gold ornaments.
3. Take off the gold ornaments when swimming to avoid chemical changes on the surface after contact with seawater or pool water.
4. Wrap it in flannel and put it in a jewelry box when keeping it to avoid mutual friction and damage.
5. Gold is soft and easy to deform. Do not pull necklaces and other accessories to avoid deformation.
How to clean and maintain the photo frame 6? Pure gold jewelry will react chemically when it meets mercury, and white spots will appear. When cleaning, as long as you barbecue under the alcohol lamp for a while, it will return to its original color.
7. After wearing, gold ornaments often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water, and then take them out and dry them.
Cleaning method
1, in order to protect the luster of gold jewelry, you can coat it with a thin layer of nail polish.
2. If there is a black silver film on the surface, it can be prepared with 2g of salt, 7g of baking soda, 8g of baking soda and 60ml of clear water. Gold cleaner? Put the gold jewelry into a bowl, pour the cleaning agent, take it out after 2 hours, rinse it with clear water (not hard water), bury it in sawdust to dry, and then wipe it with a soft cloth.
3. Ring with gems Roll a piece of cotton with popsicle or matchstick, soak it in the mixed liquid of toilet water and water, scrub the border of the gem, and then polish the ring with flannel. Never scratch with sharp objects such as blades.
4, salt and vinegar mixed into a cleaning agent, using it to pure gold jewelry, can make it durable.
5, toothpaste or scrub with thick rice soup can also restore luster.
6.70% nitric acid and 98% nitric acid can be used in a ratio of one to three, but this is a chemical reaction to clean, which has certain losses to gold.
2. How to maintain and clean the metal photo frames provided by Ningbo: piano keys 1 How to clean and maintain them, and wash your hands when using them.
The piano is clean. When playing the piano, please remember to wash and dry your hands first, so as not to bring the stains on your hands to the piano. When opening the piano, gently open the piano cover. Don't scratch the keyboard or hit the keys too hard, so as not to damage the keys and affect the internal parts.
2. Cover the piano cover and piano cover with the back cover.
Some students always forget to put down the piano cover and piano cover after practicing. In fact, this is a bad habit. Why do you want to emphasize putting the piano cover down? There is a lot of dust in the air, even indoors. If the piano cover is not put down and the key cover is not covered, dust will fall on the piano and keys. Especially if you don't use it for a long time, the dust will accumulate more and more. If it falls into the keys or the gap between keys, it will do more harm to the piano, affect the flexibility of the percussion system, and even produce noise, which will greatly reduce the performance of the piano. So put down the piano cover after practicing and cover the piano with the cover in time.
3, can't use towels and other coarse fiber cloth to clean the piano paint surface.
The surface of the piano is coated with a layer of piano paint of about 0.6mm, which is used to help the piano isolate air, moisture, sunlight, acid and alkali corrosion and protect piano parts. Daily cleaning and maintenance of this piano paint, remember not to use towels, these coarse fiber rags. Wipe the piano with a towel, these coarse fibers will scratch the paint surface, which is no less harmful to the piano than "wipe the piano with frosted paper". Therefore, Cournot Piano suggests that when cleaning the paint surface of the piano, gently dust off the surface with a feather duster to avoid scratching the paint surface with large particles of dust. Step 2: Clean the paint surface with soft cotton cloth, and use wet soft cotton cloth if necessary. This is the way to clean the piano.
4. The keyboard should be cleaned regularly.
Maintain and clean the piano, and pay attention to cleaning the piano keyboard regularly. When playing the keyboard, use soft cotton cloth to play from the inside (towards the music stand) to the outside (towards the piano lock), not sideways. If there are stains that are difficult to remove, use a soft cloth with a little toothpaste, soapy water or polishing solution. Please don't use alcohol-containing cleaning agent, lest the keys burst. It should be noted that the shell cannot be used in the same way.
5. Cleaning of metal parts
Clean and maintain the piano and don't forget the metal parts on it. The copper metal part on the shell can be dipped in a little car wax or brightener with a soft cloth to prevent the metal part from being oxidized and blackened because it is left for too long, thus having a bright luster.
6, regular tuning
Besides proper maintenance, a good piano should be tuned once or twice a year. If you don't tune for a long time, it will easily lead to parts wear, or the structure will be affected by the increase of strings in the next tuning. Tuning and arrangement must be carried out by professionals with tuning lawyers to avoid damaging the piano.
The above is about how to maintain and clean gold jewelry, and it is about how to maintain and clean gold jewelry. I saw how to maintain and clean the metal photo frame provided by Ningbo. I hope this will help everyone!