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High pure High temperature Graphite Crucible For aluminium melting
1. Product description
Graphite crucible is Designed for melting gold, silver, copper, brass and other metals, this graphite crucible is ideal for use with fuel or induction (medium or high heat) furnaces and kilns. Improved coating materials enhance oxidation resistance and extend the working life of the crucible. The uniform, dense graphite structure offers high corrosion resistance while handling molten metal. Pure graphite crucible can NOT be heating by Carbon furnace or charcoal kiln. It will be oxidized and cracked. Composition: Graphite ≥ 99.9%; Ash≤0.1% (protect the precious metals from contamination while smelting) Capacity:1kg/2kg/3kg/4kg/5kg Gold.
2. Features ● Well thermal stability : Capable of fast heating and cooling according to the using conditions of graphite crucible. ● Excellent corrosion resistance, impact resistance, acid resistance and alkali resistance. ● Great heat transfer performance: highly shorten the melting time and save energy. ● Small thermal expansion coefficient in high-temperature using process and certain strain resistance to the thermal shock, quenching. ● Graphite Crucible is Generally used in alloy tool steel smelting and smelting of nonferrous metals and their alloys. ● Graphite is more durable than ordinary material products, which makes graphite crucible to have long service life under correct using condition.
► Warm-Tips:
【Composition:】99.9% Graphite. Ash content less than 0.1%. Excellent thermal conductivity and corrosion resistance. Better for Refining than Silicon Carbide Graphite Crucibles.
【Performance】Excellent thermal stability for fast heating and cooling / Well corrosion resistance to strong acid and alkali / Good thermal conductivity properties which highly shorten the melting time and save energy / Great impact resistance performance to ensure the reliability of product quality.
【Application】Melting and casting metals such as Gold, Silver, Brass, Aluminum, Copper, Zinc, Plumbum, etc.
【Attention】Pure graphite crucible can NOT be heating by carbon furnace or charcoal kiln. It will be oxidized and cracked; Pure graphite will start to oxidize at 752 °F (400℃). The withstand temperatures can be 3200 °F if you use Air Electric Furnace. The withstand temperatures can be 5000 °F if you use Vacuum or Gas Protection Furnace.
3. Technical data:
Items
Unit
Date
Apparent porosity
%
18
Cold Modulus of Rupture
M pa
42
Density
g/cm3
2.65-2.7
Max. Service Temp.
℃
1450
Si C ≥
%
72
Si3 N4 ≥
%
21
Fe2O3
%
0.5
modulus of repture(1400°)
M pa
45
Thermal conductivity
W/m.k 1250℃
15-18
cold compressive strength
Mpa
150
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
3000000-5000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Yixing City Kam Tai Refractories Co.,ltd is located in Yixing, the Pottery capital of China. Our company is founded in 2006, it is a professional refractory and ceramic company which cover research, production, sales and after-sales service. Since establishment, we adhere to principle of “Tech... Yixing City Kam Tai Refractories Co.,ltd is located in Yixing, the Pottery capital of China. Our company is founded in 2006, it is a professional refractory and ceramic company which cover research, production, sales and after-sales service. Since establishment, we adhere to principle of “Tech...
