according to the requirements of our national standards, the parameters of pens are mainly the following aspects, so we can refer to several aspects when choosing pens; 1) pen tip smoothness; Pens (2 sheets) 2) Water leakage resistance; 3) continuous writing time; 4) intermittent writing time; 5) pen clamping force; 6) Corrosion resistance; 7) handwriting width; 8) Water absorption; 9) Mechanical properties of parts; 1) pen sleeve tension; 11) appearance; When we choose a pen, some parameters are invisible. But we can still use some skills to tell whether a pen is good or bad. Let's take the best-selling Zekai gift pen in the market as an example. I) The smoothness of the nib can pull out the pen cover and move the nib on the white paper. Generally, the grinding difficulty of the pen tip is the side. We do experiments, and use Zekai's CAMALI pen to move on white paper at 3 degrees on the left and 3 degrees on the right. If it is still smooth, it shows that the sliding of this pen tip is guaranteed. II) The main reason for water leakage is the poor sealing performance of the pen container. We can block the tip of the pen and squeeze the liner. If it is difficult to squeeze, it means that the water leakage resistance is very good. Of course, water leakage resistance is a comprehensive parameter. III) Continuous writing time and intermittent writing time are the soul of a pen. If you buy a pen, you can't guarantee continuous writing and intermittent writing, which is equivalent to waste. Depending on the width of the handwriting, the writing time is different. But generally the necessary time is at least 3 minutes. Like Zekai's CAMALI pen, the writing time below .35MM is generally 2 hours. IV) Some mechanical properties, such as pen clamping force, mechanical properties of parts, pen sleeve tension, are all concerned by users. Generally, mechanical properties can be tested by hand without any instruments. Users can pay attention to these details when choosing. Especially some expensive gift pens. V) For the average user, what is more concerned is the appearance of the pen. Very COOL, very cool, which is the initial idea of ordinary people choosing pens. Like the gift pens introduced by Zekai, there are more than 1 kinds of arrangements to choose from. Parker also basically designs three or four new styles in a month, and it seems that all major pen manufacturers are making a big fuss about the appearance. From the user's point of view, choosing a pen is actually an artistic washing. Because today's pen manufacturers are undoubtedly artists, and all regard pens as artistic creations. It is a taste, a luxury. This makes sense. How to buy a gold pen nib is made of gold and alloy sheets. At the top of the nib, a fountain pen with iridium particles is spot-welded, which is called a gold pen. According to the content (composition) of gold, gold nib can be divided into 12K and 14K. Famous and famous brand gold pens have obvious trademark number and model at the mouth of the pen holder or the surface of the pen tip, and there are marks and signs such as quality inspection certificate, name of the manufacturer, place of origin and name or code of the inspector in the packaging of goods; On the back of the tail of the gold nib, there are obvious brands of gold content steel seal (that is, 12K or 14K). There are many kinds and models of pens in this paragraph. According to the composition of pen tip, it can be divided into gold pen and iridium pen. (1) The tip of the gold pen is made of gold alloy, which is soft, elastic and comfortable. However, the gold pen is expensive, and the pen tip is soft and difficult to master, so it is not suitable for beginners to use. ⑵ The tip of iridium pen does not contain gold, and some tips are plated with gold. The tip is hard, but cheap, so it is a suitable tool for beginners to write. The reason why the gold nib and iridium nib are more durable than the pen nib is that the secret lies in the small round particles on the pen nib. This little round grain. This small round particle is made of iridium-osmium alloy, which is very hard and wear-resistant. According to the experiment of Shanghai Jinxing Gold Pen Factory, if the gold pen tip and the steel pen tip are put on the oilstone at the same time, after one hour, the gold pen tip will wear only .7 mm, while the steel pen tip will wear as much as 5 mm! Although the price is very different, the iridium particles in the nib are all special alloys "iridium, ruthenium"! The reason why the smoothness is so different is that the polishing method and fineness are different. So in a sense, the gold pen is the same as the iridium pen. But the materials and feel are different, which leads to the price gap! Ink contains a small amount of sulfuric acid, but this corrosive sulfuric acid will pose a serious threat to pens. If the pen tip is made of ordinary steel, it will not withstand the corrosion of sulfuric acid and will not last long. What metal can resist corrosion? Gold, iridium and stainless steel. Gold is a corrosion-resistant metal, and people think of using it to make pen tips. However, pure gold is too soft to be directly used to make pen tips. The golden pen we usually say, the nib is all alloy. The tip of a better gold pen is marked with the words 14K, indicating that it contains 58% gold, and there are also silver and copper: those marked with 12K indicate that it contains 5% gold. In this way, not only the hardness is improved, but also the elasticity is particularly good. The small silver-white round particle on the gold nib is called iridium particle. It is an alloy, mainly iridium, and other rare metals, which are particularly wear-resistant. Because when you write, you have to rely on it to draw across the paper, and it often has to "walk Wan Li Road" all its life. The tip of the iridium pen is made of stainless steel. Fortunately, the small round particles on the tip of the iridium pen are exactly the same as those on the gold pen. Therefore, the use effect of iridium pen is similar to that of gold pen, but the price is much cheaper. So cheap iridium pens are very popular. Ordinary dip pens and pens have a much shorter service life without embedded iridium particles on their tips. Edit this paragraph to use and maintain a new pen. Generally, the pen can be used normally when it is put into water, and it is not necessary to take away the new pen as someone said. Of course, sometimes it is inevitable that the pen will not run out of water or the nib will be dry. At this time, it is necessary to treat it slightly. Generally, it is necessary to clean the pens that have poor ink output after being bought back, because some pens are not cleaned when the nib is inspected before leaving the factory or after the counter customer tries the pen, and the components in the ink condense for a long time, blocking the ink guide groove of the pen nib, which will lead to poor water entry. In this case, you need to remove the pen tip, soak it in warm water (avoid boiling water) for half an hour, then dry it, and it can be used normally after being installed. If it still doesn't work, you can extend the soaking time. If it still doesn't work, you need to remove the metal sheet of the nib, and then use a small brush to clean the ink guide groove on the back of the tongue and the whole capillary structure (that is, the small cracks on the plastic part of the nib). It may also be the cause of the pen tip itself that the water is not smooth. One is that the pen seam at the front end of the pen tip is too narrow. At this time, you can press the pen tip down slightly according to the usual writing posture and keep it for one or two seconds, or you can widen the pen seam with a thin blade, but be careful. The second reason is that the ink guide groove is too narrow. At this time, it is necessary to use a thin blade to expand the ink guide groove, so be careful! Pen maintenance When writing, some manuscript paper should be put under the paper to enhance the elasticity of the nib and reduce friction. Don't write on hard materials such as metal to avoid damaging the nib. Avoid mixing different inks in daily use, so as to avoid precipitation blocking the pen. Pens should be cleaned once every month or so to keep the ink flowing smoothly. If carbon ink is used, it should be cleaned more. Pens should be washed and preserved if they are not used for a long time. When cleaning pens, you can absorb water and drain water repeatedly until the drained water is clean and dry it. If you clean the pen at a long interval or plan to clean it and seal it, you need to disassemble all parts and clean them separately. After preliminary disassembly, it is divided into five parts: nib, converter (inker/ink bag), pen holder, pen cap and pen holder. The latter two generally do not need to be cleaned. The metal part of the nib and the tongue (inking structure) should be further disassembled. The metal piece of the nib should be washed clean with water, and the whole inking structure can be carefully brushed with an old toothbrush, and then soaked in warm water for one night. All parts are cleaned and dried, and can be packed and sealed when they are completely dried. Of course, different pens have different structures, and not all pens can be disassembled. For pens that are difficult to disassemble, only the first method can be used to clean them. Do not forcibly disassemble and damage the pens. It needs to be mentioned here that there is a kind of elbow pen called "calligraphy pen", which has the characteristics of great change in the thickness of writing strokes. When using, the pen holder is pressed down, the strokes are thick, and you can write slightly larger words; When the pen is upright, the strokes will be fine, and you can write smaller words. This kind of pen is more expressive than ordinary pens, and is often used to write larger fonts such as envelopes. However, it is difficult to write with this pen, so beginners should not practice writing with it. Finally, one thing should be paid special attention to: Never clean the pen with boiling water or overheated water, otherwise it will do harm to the pen! Domestic brands: domestic classic brands: old brands that are still alive: Hero, Yongsheng (Happiness), Guan Leming, Jinxing, etc. Among domestic brands, the well-known old pens such as Hero, Yongsheng and Guan Mingle are now owned by Hero. Although the brands still exist, their ownership has been owned by Hero Pen Factory. Hero is the first manufacturer of domestic pens, and its products are not only sold in China, but also have a high influence in Southeast Asia, and its business has also been carried out in many European countries. Many well-known brands have become permanent history under the pace of market economy and reform and opening up. Such as "Friendship League", "bai ling" and "New Youth". However, the old brand Venus has experienced the production from Shanghai Venus to Shanghai Venus and Beijing Venus, and Shanghai Venus gradually faded out. Until now, most of the Venus brand pens that can still be seen in the counters are made by Beijing Venus. Montblanc pen is in the memory of the people in China, and Eternal Life is two famous brands along with heroes. Since the brand of Eternal Life (Happiness) was sealed by Hero Factory after the merger, all the Eternal Life (Happiness) pens that can be seen now are out of print in the last century. At present, there is another kind of "eternal life" pen on the market, which was made by a few people in Jiangxi province with the plan of "returning the dead to the soul", which is actually not the same as the "eternal life" in our memory. In fact, in terms of appearance and performance, we can easily distinguish two kinds of "immortality". Lao Yongsheng has a classic appearance, exquisite craftsmanship and good writing feel. Almost every style is recorded, which is very similar to the old hero and foreign antique pens. The "eternal life" of reincarnation is similar to the image and feel of the "popular" Jiangxi Wengang pen. Eternal Life Pen

Please adopt it if you are satisfied.