Tungsten Carbide Ball for Pen Using II

In addition, tungsten carbide ball for pen using can be specifically divided into WC-based cemented carbide, WC-TiC-based cemented carbide, Tic-based cemented carbide, Cr₃C₂-based cemented carbide and so on. WC-based cemented carbide is the most widely using for pen, although different basis of ball has different advantages and properties. Therefore, according to different ink and the material of nib, we should choose the proper ball and it can improve the quality of production.

Then we can sum up some regulations through tungsten carbide ball grades, which is that the more WC hard phase, the higher hardness and lower toughness and it will be fragile; the more fine WC grains, the higher hardness, the better wear resistance; the more Co binder, the lower hardness, the higher toughness and wear resistance; and the more Cr or Ni, the anti-corrosion will be increasing. So the abrasion is not proportional to the hardness, it can be influenced by other factors.












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http://news.chinatungsten.com/en/tungsten-information/78947-ti-10057

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