Pencil core production process

Pencil core production process is very important, the following look at how the production of it!

         Pencil core production process can be divided into pencil board, lead, pencil, finished product decoration and other process. 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. After a series of processing, the pencil board to soften the extent of easy rolling.

         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.

         Color Lead processing is similar to graphite lead, but does not require sintering. Processing method is to clay, talc, adhesives, colorants, oils and waxes mixed evenly, the molding, drying and made, known as the mixing method; this method has certain advantages, making the pencil core in use The process is not easy to break, writing smooth.