There are two common types of crucibles in the market now: quartz crucibles and graphite crucibles. I don't know how much you know about the difference between the two, but this article introduces the difference between the two:
1、 Difference in materials:
1. The main raw material for quartz crucibles is high-purity quartz sand, with auxiliary materials including graphite electrodes, graphite molds, and large-sized quartz heat shields;
2. The main raw materials for graphite crucibles are graphite, clay, silica, and wax stone, which are fired into a type of crucible.
2、 Difference in usage:
1. The former is mainly used for drawing single crystal silicon, and in the laboratory, it can be used not only for evaporation, concentration, and crystallization of solutions, but also for burning solid substances.
2. The latter is mainly used for smelting non-ferrous metals and their alloys such as copper, brass, gold, silver, zinc, and lead.
3、 Differences in production techniques:
The production process of quartz crucibles is relatively complex, requiring numerous steps such as secondary and tertiary inspections before they can be stored;
The production process of graphite crucible is relatively simple, mainly including hand molding, rotary molding, and compression molding.
The previous text compared quartz crucibles with graphite crucibles in terms of materials, applications, and manufacturing processes, so we need to clarify their purpose before making a purchase.