Graphite cone Cláusulas Exemplificativas

Graphite cone. The graphite cone is an intermediary to ensure the reliable contact between the graphite tube and the electrodes. The contact quality of the graphite cone directly affects the graphite tube for that whether the set temperature can be steadily arrived or not. Especially for those medium and high temperature elements, more attention should be paid. The graphite cone may be contaminated and cause the poor measurement repeatability and varied sensitivity. In that case, user should remove the graphite tube from the furnace body and clean the graphite tube with polyester cotton that dipped in the mixture of alcohol and ether (1:1). Generally, the graphite cone can be used for a long period. However, once the damage of the graphite cone is confirmed, user can dismantle it with special tool (Fig. 10-1) and replace with a new one.