Triangular prism synthetic carbon rod with grooves

The utility model relates to a carbon rod and in particular relates to a triangular prism synthetic carbon rod with grooves. The triangular prism synthetic carbon rod comprises a carbon body (1), a hole (2), grooves (3) and synthetic carbon (4) and is characterized in that the hole (2) is formed in the axis in the length direction of the carbon body (1); the grooves (3) are formed in the outer surface of the carbon body; synthetic carbon (4) is arranged on the periphery of the hole (2); the carbon body (1) is shaped like a triangular prism, has side length of 3-5mm and is made of fruitwood carbon; the hole (2) is circular and has diameter of 2-3mm; the spacing between the adjacent grooves (3) is 5-10mm; and synthetic carbon (4) is ring-shaped and has inner diameter of 2-3mm and outer diameter of 3-4mm. The triangular prism synthetic carbon rod has the beneficial effects that the triangular prism synthetic carbon rod has a simple and reasonable structure; the contact area of the carbon rod and air is increased