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Whether The Graphite Crucibles Can Withstand The Rapid Heat

QINGDAO YOSION LABTECH CO., LTD. | Updated: Sep 21, 2017

The main purpose of graphite crucibles is smelting copper, gold, gold and silver lead and zinc and other non-ferrous metals and experiments. Because the metal melting point is higher, other materials and ordinary ceramic crucible will melt, do not meet the requirements, and graphite melting point is 3652 ℃ ideal, and corrosion resistance, good strength. Therefore, the graphite crucibles is the best melting of non-ferrous metal containers, can withstand most of the non-ferrous metal melting temperature, the temperature does not occur can not be achieved, or can not withstand the melting temperature of the metal.

We in the metal smelting process, according to the needs of the process, but to the rapid warming of the crucible, or rapid cooling, that is, whether the graphite crucibles can withstand cold and hot. For example, in the melting of copper alloy, the melting point of copper is 1083.4 degrees Celsius, the crucible reaches the temperature, the copper metal melting, but according to process requirements, need to quickly cool to a certain value, which made the crucible requirements. Graphite crucibles belongs to the ceramic paper category, the property and the ceramic, the glass is the same, can not bear the rapid emergency, this will cause the crucible rupture, serious situation will cause the burst.

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