Tungsten Carbide Balls on the Ballpoint Pen

China has sent people to space and has been the biggest producer of the world’s goods for the last six years. However, we can not produce the tip of a ballpoint pen until 2017.

Tungsten carbide balls for ballpoint pens are so difficult to achieve. When we write with a ballpoint pen, the balls turn around, and the ink rolls out from the socket to the paper. Users of ballpoint pens require the ball to move freely and the socket to be perfectly tight so that the pen will be difficult to lose. The ink is hard to leak, and the ball is hard to fall out.

Nowadays, China can produce ballpoint pens by itself of high quality, and now, ballpoint pens have become a popular writing tool. The working mechanism of a ballpoint pen is complex. A ballpoint pen consists of many parts, including the ball tips, socket, and so on. The ball tips of ballpoint pens are made of tungsten carbide.

Tungsten carbide balls for ballpoint pens are made from refractory metal, tungsten carbide, and binder powder, cobalt powder. After sintering, tungsten carbide powder and binder powder are made into the final tungsten carbide balls. Then the tungsten carbide balls have the characteristics of tungsten carbide. And the binder phase is surrounded by the tungsten carbide particles after sintering.

Tungsten carbide balls for ballpoint pens have low surface roughness, an even surface, and tiny pores. Compared to stainless steel, tungsten carbide balls for ballpoint pens have more advantages because tungsten carbide balls for ballpoint pens have more performance, such as high hardness, corrosion resistance, abrasive resistance, surface uniform, and so on. With these properties, tungsten carbide balls can give users a better writing experience.

Carbide balls of any type must have low surface roughness and uniform pores to achieve good writing requirements. And in the whole writing process, the relatively stable characteristics can be maintained for a long time with little change. In this way, the wear between the ball and the socket can be effectively reduced during writing.

At present, foreign ballpoint pens use tungsten carbide balls, and most domestic ballpoint pen manufacturers also generally use tungsten carbide pens, especially in luxury goods.

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