Высокотемпературный графитовый тигель высокой чистоты для плавления

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High temperature high purity graphite crucible for melting gold

Graphite crucible is a utensil or melting tank vessels which use graphite powder and clay as main raw material, made through pressing in different molds (according to different needs) and firing process.

high temperature graphite crucible Advantages:
1.High strength (Flexural strength: 30Mpa Compressive strength: 55Mpa with rising of temperature, graphite strength increases)
2.High temperature resistance (graphite material melting point is 3850±50C)
3.Good heat shock resistance
4.Anti-oxidation,
5.Strong corrosion resistance to acid and alkali liquid
6.Abrasion resistance,
7.Good conductivity and thermal efficiency.
8.Excellent chemical stability
9.Small thermal expansion coefficient.
10.Easy to clean

 

high temperature graphite crucible Application:
Graphite crucible, with its special advantages and Plasticity, is widely used in the smelting area, e.g. gold smelting, silver smelting, aluminum smelting, and cooper smelting in metallurgy, casting, machinery, chemical and other industries.

high temperature graphite crucible Operating Notice:
The crucible should be stocked in the dry situation.
Carry the crucible carefully
Warm the crucible in the drying machine or near the furnace. The warming temperature should be up to 500℃.
The crucible should be put under the furnace mouth flat.
When put the metal into the crucible, you should take the crucible capacity as your reference. If the crucible is too full, it will be damaged by expansion.
The clamps shape need as that of crucible. Avoid the concentrate stressed destroy of the crucible.
Clean the crucible regularly and gently.
The crucible should be put in the center of the furnace and leave some distance between the crucible and furnace.
Turn the crucible once a week and this will help prolong the service life.
The flame should not touch the crucible directly.

 

 

high temperature graphite  crucible Technical Index 

Standard parameter		Test result
refractoriness≥	1630℃	refractoriness≥	1635℃
Carbon content≥	38%	Carbon content≥	41.46%
apparent porosity≤	35%	apparent porosity≤	32%
bulk density≥	1.6g/cm3	bulk density≥	1.71g/cm3

 

High temperature graphite  crucible Physical properties

Specifications	Unit	Value
Bulk Density	g/cm3	1.65-1.80
Compressive Strength *	MPa	20-55
Bending Strength *	MPa	10-30
Elastic Modulus *	GPa	9-21
Specific Resistance *	u.Ω.m	5.0-15.0
Ash	%	0.05-0.5

 

high temperature graphite  crucible Specifications

Specifications	Top outer diameter	height
1#	70	78
2#	87	108
3#	102	120
4#	112	131
5#	121	141
6#	121	154
8#	137	169
10#	148	186
12#	156	192
16#	164	212
20#	183	232
25#	196	250
30#	208	269
40#	239	292
50#	257	314
60#	270	327
70#	280	360
80#	296	336
100#	321	379
120#	345	388
150#	362	429
200#	395	483
250#	430	557
300#	455	610
400#	526	661
500#	531	713
600#	580	600
750#	600	650
800#	610	730
1000#	620	800
1500#	720	800
2500#	875	1000

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