Pencil board processing requirements which have

Pencil board processing to open the wood solution, cut off, open square saw into pieces, after hydrothermal treatment by cutting board machine cut into pencil board. Typically, it is about 184mm long, 73mm wide, 4.8 ~ 5.2mm thick. And then heating and drying and high temperature denaturation treatment, the pencil board to soften the extent of easy roll. Lead-core processing of graphite lead-core is a certain proportion of graphite and clay with a good, the pinch-training machine, three-roll mixing machine, extruded by a certain pressure-core size lead-core, the heating drying and high temperature roasting, So that it has a certain mechanical strength and hardness, and finally made by the oil immersion treatment.