A. Ballpoint pen use common sense 1 Ball bead closing process: The ballpoint pen has a ball and a ball seat (as shown in the figure), indicating that it is a ball, here is a ball seat, and the ink channel has five grooves. The ball is placed on the ball seat, the ball seat closes, and the ball is wrapped, so that the ball does not fall out and the writing process is completed.
2 Ballpoint pen writing principle: The ball can rotate freely in the ball seat. The ink of the ballpoint pen flows to the ball through the five grooves in the ball seat. When the pen is writing, the friction force drives the ball to rotate, so that the ink flowing to the ball is continuously transferred to the writing object.
3 The cause of the oil in the ballpoint pen When the ballpoint pen is writing, part of the ink is transferred from the ball to the writing object. Please see that the ball becomes white after being transferred, and the other part of the ink will be brought back to the ball seat with the ball. A good writing head, with the ball rotating to bring the ink back to the ball seat is more thorough, the ink is less on the outside of the ball seat head, relatively clean. Poor pens, most of the ink will stick to the outside of the tee head, can not be brought back into the tee, which is what we call the oil phenomenon, it is easy to contaminate the writing when writing. The ballpoint pen should be fluent, and there will be more ink, but the negative effect is to drop more ink. If you want to drop less ink, the shortcomings are not fluent. These two situations are a pair of contradictions. How to comprehensively consider them to achieve the best results is a subject that has been studied in the ball-point pen manufacturing industry. The reason why the "Platinum" brand ballpoint pen is written smoothly and does not pollute the writing object and has a long service life is highly praised by users. The efforts in this respect cannot be underestimated.
4 The ballpoint pen is grounded by the tip of the ballpoint pen. If the pen tip touches the ground at 90 degrees, the ballpoint pen tip will not be damaged, but if the mouth is bruised (as shown in the figure), it will produce “oil†at the gap. Phenomenon, when it is serious, the ball will fall off and the writing will be difficult.
5 Correct writing angle of the ballpoint pen (55°~70°) When writing the ballpoint pen, it is ideal to control the angle between 55° and 70°. At this time, only the ball is in contact with the paper (the ball is very hard...tungsten carbide or Ceramic, very hard to wear), does not touch the writing object at the closing point, thus ensuring that the ballpoint pen prolongs the service life under good writing conditions.
6 The writing angle is too small to wear the ball seat (the ball seat material is nickel platinum copper or stainless steel, which is much more wearable than the ball), such as long-term contact with the written object, even if the written object is paper, the ball seat Can not withstand the wear and tear, this will cause the ball to fall off.
7 When writing, the paper is too thick, the paper is in contact with the paper at the closing position of the pen, and it is easy to wear and depilate. It is recommended that: 0.4 balls can not be rewritten; 0.5 balls can be rewritten at most one, not more; 0.7 balls can be rewritten at most 3 Zhang to 4, not more, when writing, it is best to write 75°.
B. Failure and repair of the active pencil
The common fault of the movable pencil is that the lead core is broken, and the movable pencil chuck is killed by sandwiching two broken lead cores (that is, the new lead core cannot enter and exit at the chuck). At this time, the movable pencil tip sleeve is removed and the needle is ejected. Break the lead core and pick out the broken lead core at the chuck.
C, the principle of the structure of the pencil without the residual core and its advantages (pictured) This is the biggest revolution of the active pencil in one hundred years. The general activity pencil can not be used when the lead core is used up to 12.4mm, and the residual core movable pencil can still be used even if the lead core is used up to the last 1mm. Its main feature is the double chuck structure, the front chuck holds the front end of the lead core, and the rear chuck is responsible for clamping and pushing the lead core.
D, "Platinum" correction tape and its core replacement method "Platinum" brand correction tape can be very convenient and quick to smear the writing, and the surface of the smear correction surface is flat, the copy does not leave any marks, the fax will not be chipped, clean! It can be written and typed without drying. The greater advantage is that there is no volatile smell and no pollution. It is an evolutionary office product for correction fluids and can be replaced with a core. With the core replacement method (pictured): Push open the rear lock and then open the cover at 2 places. Insert the new core into A, remove the blue tape, and affix one end to the reverse side of the correction tape, then extend it in the direction shown to B to C. Place the other end of the blue tape on the plastic core C for a few turns, then cover the lid.
E, "Platinum" Whiteboard pen "Platinum" whiteboard pen is very soft and smooth on the whiteboard, and the smell of alcoholic ink is very light. If you forget to put on the cap, the pen tip will not dry up for 1 hour. The writing on the white board can still be easily erased after more than two months.
F, "Platinum" retractable ballpoint pen is not used, the pen holder is shorter, the refill is also retracted in the pen holder, small and easy to carry; when using, as long as the pen is gently stretched, the refill will automatically extend the pen to become the usual The length of the pen. Metal matte pen, gold-plated pen holder, noble and elegant, is the best choice for gifts.
G, "Platinum" color pen "color pen" is also called "magic pen", it is called "magic pen" because it can change one color to another color like magic, even make colorless The calligraphy and painting are revealed, fast and convenient, and endless. Test: Write with a colorless pen, let everyone guess what the word is, then use a colored pen to paint the writing place, showing the word written in front with a colorless pen. With this feature, you can do a lot of things, such as passing information, writing interesting love letters, and so on.
H, "Platinum" squeezing eraser-type eraser, erased writing like writing, not only easy, and will not stain the rubber, the greater advantage is that it can easily wipe the small parts, after use The rubber core can be retracted into the core tube, and the rubber core can be replaced after use. Meet environmental requirements.
I, "Platinum" marker, universal pen can write on any object, forget to cover the cap, it will not dry up in 1 day, because there is a high-tech, cap is not covered, the appearance of the ink quickly produces a film, Prevent ink from evaporating and scratch the film immediately when writing.
J, "Platinum" modern brush does not need to grind, clean. Light and flexible, you can carry it with you, evenly, without water, and fast. Although the pen is not made of animal hair, it has the function of a brush, and the writing has a pen, which is suitable for signature and check. If you use it to paint and write a little, you don’t have any fun.
K, "Platinum" double-headed brush has all the functions of "Platinum" modern brush, and can write Lieutenant and Xiaoyan.
L, "Platinum" core can retract the active pencil is the biggest feature is that its lead protection can be retracted under a certain pressure. This kind of pen uses a metal chuck and is equipped with a protection spring to prevent heavy pressure. After pressing, it can semi-automatically core out, not only the core, but also avoid piercing the pocket and protecting the lead.
N, "Platinum" metal future pen This is the 21st century innovation pen. It combines the lubricity of oily ballpoint pen with the smoothness of water-based ballpoint pen. It feels relaxed and comfortable, the ink is smooth, the writing is not only clear, but also quick-drying, not sticky, especially the obvious advantages are: no water, never fade. Use it to write documents for more than 20 years. Therefore, it is not only an ideal tool for office writing, but also suitable for archival and accounting work. Metal-carved gold-plated (palladium-plated) pens are elegant and elegant, making them the best choice for personal use and gifts. The future of metal is the first of Platinum, and Platinum will soon launch a better and more advanced metal rod for the future.
Multifunctional Children's Study Table Chair Set
Myopia in children is mostly caused by bad habits in the learning process, such as improper sitting posture and poor lighting. The learning environment created by a good learning table is still helpful for preventing myopia, so buy anti-myopia learning desks for children. There is still a certain effect, let children develop good study habits, which will accompany them for a lifetime.
After the child goes to school, they can use the study table. The study table on the market can adjust the height of the table according to the height of the child. The study table is an essential tool for children to do homework. For example, there is a great and handsome study table on the market. The function is intelligent lifting and lowering, and the desktop can be folded. , When a person sits in front of the table, they naturally enter the concave table top, and the two arms droop naturally. Because the two elbows are supported by the concave plate, the body naturally does not lean forward, which effectively solves the shortcomings of lying on the stomach to write and study. When shopping for a Study Desk, be sure to keep these must-have features in mind. The focus of the study table is to correct the sitting posture and prevent myopia, which is a foldable study table with a concave table top.
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Igrow Technology Co.,LTD , https://www.szigrowdesks.com