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Graphite pencil - the strong force in the pencil

April 17, 2022
Graphite pencil - the strong force in the pencil

The use of pencils in today's life has become less and less, but for students, especially primary school students, pencils are still one of their indispensable stationery. I remember that the round pencils that I used often when I was a child were not found in the market, but the six-diamond pencils still exist. At present, there are more automatic pencils, and no need to laboriously engrave pencils. A lead will come out at the touch of a button. Speaking of the lead core, there is a lot of knowledge inside.

There is a research table that shows that adults use 0.5-1 Newtons of paper when writing with a pencil, but for primary school students who just learn to write, they use pencils differently from adults. When they use pencils The pressure on the paper can reach 2-10 Newtons, so the general mechanical pencil is too unbearable because of this pressure, which leads to the breakage of the lead core. Therefore, most primary school students choose wooden pencils as their initial tool for learning to write. However, the country is now vigorously promoting energy conservation and environmental protection, developing a low-carbon economy, and the pen industry is also affected. It is also studying automatic pencils instead of wood pencils, but this requires solving the problem of the use of lead cores for primary school students.

The appearance of graphite pencils has solved this problem perfectly. There are even reports that this is a revolutionary product in the history of pencils for more than one hundred years. What kind of characteristics does this graphite pencil have? Why does it appear that it solves the problem of pressure on primary school students? Let us now take a look at the graphite pencil and find out the answer.

Graphite pencil has the characteristics of no cutting, no pressing, completely automatic, time saving, labor saving, safety, easy operation and writing. A pencil refill is equipped with a special refill of 7.5 cm, which is equivalent to 5 traditional wooden pencils. The key is that the refill is made of pure natural graphite. The ordinary pencil is made of charcoal and has lead poison. The graphite refill is not the same. The graphite refill is extremely hard and is not easily broken during use. And graphite wear-resistant, no lead poison, clean, environmentally friendly, so that children can stay away from lead poison and can use it with confidence, no longer worry about the broken core.

After reading the introduction above, I believe that everyone will have a little understanding of graphite pencils. In summary, graphite refills have strong hardness, lead-free poisoning, and are very convenient and quick to use. In view of the various advantages of graphite pencils, there are already many primary school students who like this kind of pencil. If you are curious, you can buy it.

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