Bought a high pure graphite stick, how so hard?! Doesn't it say that graphite is soft? Why is it so hard?
Of course, pure graphite rod is one of the main indicator is the strength and hardness of soft graphite refers to graphite can be used to write a relatively soft, you say should be soft flexible graphite, it is a kind of graphite,
The graphite is soft, refers to natural flake graphite powder, rather than artificial. Try some natural flake graphite powder.
High pure graphite rod belongs to artificial graphite is processed by tar pitch coke and the like, through the press, after N N in the baking leaching intensity, hardness increased, high purity graphite, graphite electrode made of graphite mould etc..
