国产精品久久久久一区二区三区_国产精品久久久久精品三级av_日韩电影在线观看第一区_久久国产成人亚洲精品影院_精品一区二区三区三级视频_天天操很很操夜夜操夜夜_日本在线精品一区二区三区_欧美理论一区二区三区

Purified graphite electrode for high purity quartz crucible
The semi-transparent quartz crucible made by the arc method is an essential material for drawing large-diameter mono-crystal silicon and for the development of large-scale integrated circuits. Today, in the semiconductor industry and the photovoltaic mono-crystal silicon industry, the large-diameter quartz crucibles have generally replaced small transparent quartz crucibles with the advantages of high purity, high temperature resistance, high dimensional accuracy, good heat preservation, energy conservation, and stable quality.
In the preparation of quartz crucible by arc method, the purified graphite electrodes have the advantages of high temperature resistance, electrical conductivity, high purity, etc., and are widely used.

Technical properties: