Graphite crucible GT

Graphite crucible is enriched crystalline graphite obtained by enrichment of graphite-bearing ores or mixtures of graphite graphite-bearing ores and metallurgical wastes, intended for the manufacture of refractory and raffica-ceramic products; crucibles, nozzles, tubes, jars, buckets, couplers, retorts, and other products. The use of graphite crucible significantly increases the conductivity of the products thereby increasing their resistance to increases in temperature and rate of heating. Being practically infusible and chemically inert to many materials, reports graphite products particularly high inertia, greatly improve their quality, gives the crucibles smooth surface to which bad stick of melted metal.

Quality indicators

Carbon is not less than 94%

The ash content of not more than 5 %

The content of volatile matter not more than 1.3%

Humidity is not more than 1.0%

Residue on sieve No. 0.15 mm not less than 80%

 

Used for the manufacture of refractory products: melting crucibles, beakers, tubes for the buckets, caps, couplings, nozzles, retorts, etc.

The use of a graphite crucible significantly increases the conductivity of the products, thereby increasing their resistance to increases in temperature and rate of heating. Being practically infusible and chemically inert to many materials, reports graphite products particularly high inertia, greatly improve their quality, gives the crucibles smooth surface to which bad stick of melted metal.

The key attributes in determining the suitability of the graphite crucible for production - the size of the crystals, the amount of ash and its composition.

Indicators

GT-1

GT-2

GT-3

Residue on sieve No. 02, % not less

75

75

75

Ash content,%, not more

7,0

8,5

10,0

Mass fraction of iron, calculated as Fe203,%, not more

1,6

1,6

1,6

Humidity,%, not more

1,0

1,0

1,0