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Graphite fittings for vacuum furnaces

Min.Order Quantity: 1 Set/Sets Graphite fittings for vacuum furnaces

Supply Ability: 2 Set/Sets per Month Graphite fittings for vacuum furnaces

Payment Terms: L/C,T/T,


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 Main materials: imported graphite, isostatic graphite, high strength and high purity graphite, fine structure graphite, graphite electrode

 
Due to its special structure, graphite has the following special properties:
 
1) high temperature resistance: graphite melting point is 3850 + 50 ℃, boiling point is 4250 ℃, even by the ultra high temperature arc ignition, weight loss is small, thermal expansion coefficient is small. Graphite with temperature increase and strengthen the intensity, at 2000 ℃, the intensity of graphite double.
 
2) conductive, thermal conductivity, the conductivity of graphite nonmetalliferous ore is one hundred times higher than normal. Heat conductivity exceeds metallic materials such as steel, iron, lead, etc. The thermal conductivity decreases with increasing temperature, and even at very high temperatures, the graphite is an insulator. Graphite can be conductive because each carbon atom in graphite only forms three covalent bonds with other carbon atoms, each carbon atom still retains one free electron for transmission of charge.
 
3) lubricity: the lubricating properties of graphite are dependent on the size of graphite flake, the larger the scale, the smaller the friction coefficient and the better the lubricating performance.
 
4) chemical stability: the graphite has good chemical stability at normal temperature, which is capable of resisting acid, alkali and corrosion resistance of organic solvent.
 
5) plasticity: the form of graphite is so pliable, it can be crushed into thin slices.
 
6) thermal shock resistance: the graphite can withstand severe changes in temperature without damage when used at ordinary temp., the volume of graphite changes little if the temperature is abrupt, and cracks are not produced.

 

Product model
IVG-130U
IVG-200U
IVG-260U
IVG-300U
IVG-500U
specifications
(High X Wide X Long mm)
400X400×1000
500X500×1000
600X600×1200
700X700×1600
900X900×1600
IF power supply Kw
130
200
260
300
500
IF power supply frequency Hz
1500
1000
1000
1000
1000
Maximum operating temperature °C
3000
3000
3000
3000
2850
Ultimate vacuum Pa
1.2×10-1
1.2×10-1
1.2×10-1
1.2×10-1
1.2×10-1
Pressure rise rate Pa/h
0.67
0.67
0.67
0.67
0.67
Constant temperature zone temperature difference °C
±10
±10
±10
±10
±15
Note: 700X700 and above graphite crucible is a high-power graphite splicing type


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