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Characteristics of graphite crucible

Pulished on May. 05, 2019

Characteristics of graphite crucible

Graphite crucible has good thermal conductivity and high temperature resistance. In the process of using at high temperature, the thermal expansion coefficient is small, and it has certain strain resistance to rapid heat and cold. Strong corrosion resistance to acid and alkaline solution, excellent chemical stability.

Graphite crucible is widely used in the smelting of alloy tool steel and the smelting of nonferrous metals and their alloys in metallurgy, casting, machinery, chemical industry and other industrial sectors because of its excellent properties. And has the better technical economical effect.

Graphite crucible

The production technology level of domestic graphite crucible has reached or even exceeded that of imported crucible. High-quality domestic crucible has the following characteristics:

1. The high density of the graphite crucible enables the crucible to have the best thermal conductivity, and its thermal conductivity is obviously better than that of other imported crucible;

2. The surface of the graphite crucible has a special glaze layer and a dense forming material, which greatly improves the corrosion resistance of the product and extends its service life;

3. All the graphite components in the graphite crucible are made of natural graphite with excellent thermal conductivity. When the graphite crucible is heated, it cannot be placed on the cold metal table immediately, in order to avoid its cracking due to rapid cooling.

Crucibles are most suitable for melting many kinds of alloys in small quantities. To change the type of alloy, simply exchange the graphite crucible. Other melting methods, such as reverberatory furnace and non-crucible induction furnace, are suitable for a large amount of melting of a single alloy. If the type of melting alloy is changed, if the refractory lining is not replaced, metal pollution will occur.

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