How to choose a 2B pencil? What is the difference between a 2b pencil and a regular pencil?

It's just a bit black to paint.

In fact, it doesn't matter if you use a pen to paint the answer sheet, but you can't change it.

Back to your question :

1. Consumers should not be greedy for cheap, fake 2B pencils are 2 to 3 times cheaper than regular goods, but the quality is very different.

2. When candidates and parents buy 2B pencils, it is best to buy them in regular shopping malls, not at stalls. When purchasing, carefully check whether the text on the packaging of each 10 small packets of pencils is clear, and the text is unclear or the text is crooked and blurred, which is a counterfeit and shoddy product.

3. The detection methods that consumers can use include: carefully inspect the color of the pencil barrel at both ends, the color of the barrel of the inferior pencil is white, and the color of the regular pencil barrel is red; Or break the pencil and cut it open to see if the pencil wood is dark red basswood, whether the fracture is smooth, and whether the lead core is centered or defective. If the wood color is whitish, the section is irregular, and there are obvious hollow cores or cracks at the nib, it is a fake and shoddy product.

Scratch it out of the paper, the handwriting is very thick, and it is clear that it is 2b. In fact, you can search for articles related to the principle of machine-readable cards in Baidu Know, and you can understand what kind of pencil to choose.

Go to a big department store and buy a handsome or ask the school to buy it.

One should go to some painting teachers, who may have a good trick.

I'm not afraid of any pencil.

The difference between a 2b pencil and a regular pencil is:

1. Color. There will be a difference in the color of the two pencils, mainly reflected in the blackness of the coin, the 2B pencil has a higher blackness, and the traces will be darker, while the blackness of the different pencils is lower than that of the 2B pencil, and the color of the traces will be much lighter.

2. Hardness. There will be some differences in the hardness of the pencil lead, the lead of the 2b pencil is softer for ordinary pencils, while the lead of ordinary pencils is very hard and not easy to break.

3. The composition of the refill.

There is a big difference in the composition of the refill, the refill component of the 2B pencil is graphite, while the bridge imitation core component of the ordinary pencil is in addition to graphite, there are some colorless substances, which make the pencil lead harder and the single color will become lighter.

4. Usage. The two pencils are very different in their use, 2B pencils are dark in color and are often used for drawing and scribbling all kinds of cards, and ordinary pencils are hard.

It is taller, you can use it for writing at ordinary times, and you can also mark it on the wide racket of hard objects, which is very suitable for children who are learning to write.

2B pencils are soft pencils that are easy to write and have a metallic sheen that is not easy to break.

2B pencil is loved by major majors, and during the exam, the answer sheet is often written with a 2B pencil because the color of the 2B pencil is relatively strong, and the machine is convenient to identify the answer.

In a variety of soft pencils 2B is cheap, tough, and easy to fill, and easy to erase and render, many art students will also choose 2B pencils when painting, 2B pencils are more handsy, from the beginning of painting, it is the basic training with 2B pencils, and 2B pencils can well control the color depth of sketching lines, and the works drawn are vivid and vivid.

2b pencils can still be tested after a long time.

Many people are very worried after knowing that the pencil has an expiration date, and they are afraid that it will be invalid after a long time, so that the answer sheet cannot be read. In fact, 2B pencils are mainly made of carbon, which is chemically very stable, and can still be used after a long period of storage as long as it is stored correctly.

It is best to store pencils in a dry, ventilated place and keep the ambient temperature between 0 and 40, and the humidity should not be too high. However, if you can't be sure if your pencil has been saved correctly before a big exam, it's best to buy a new one just in case.

2b pencil precautions

Sharpen the pencil before the exam, be sure to cut it flat, the lead core exposed by the pencil should not be too long, to prevent the painting card from breaking, and it is okay to be short, because there are dozens of questions in the half-day exam.

Automatic 2b pencil can be used, my daughter-in-law used it when she was studying rock and soil, she said it was very easy to use, if you haven't bought a pen yet, you can try it.

2B pencils are made of wood, and the wide-pin wood of the packaging is generally red, and the color is relatively shiny. The 2B pencil is a soft pencil, and the depth of the 2B pencil ink is suitable for the examination to be machine-readable and easy to write. When applying a certain area, the soft pencil is easier to apply evenly, and it has a metallic luster, which is not easy to break.

How to identify a 2B pencil:

1. Material: The wood material of the 2B pencil, the wood of the packaging is generally red, which is a pencil made of special wood, and the general wood wraps the pencil very easily.

2. Look at the color: Generally, the color of the real 2B pencil is relatively oily, if it is just black and not bright, it is also fake.

3. Texture: 2B pencil is relatively soft and smooth to write, and the hardness of 2B pencil is also softer, not as hard as H pencil, so you can experience it when writing.

4. Observe the refill from the surface of the pencil: Observe the refill from the surface of the 2B pencil, and you will find that the refill of the real 2B pencil is just on the front of the wood, and there is no eccentricity, while the fake 2b pencil often has an eccentric phenomenon.