70% 80% Of Ferrotungsten Sold
Size:3–50mm
Application: Used in production of high speed steel such as turbine blades, aircrafts and heat sinks etc.
Description
High Hardness Ferro Tungsten 70
Description
Ferro Tungsten 70 uses an open electric furnace that can be moved on tracks and the upper section of the furnace body is detachable, and carbon is used as the reducing agent. The mixed charge composed of refined tungsten ore, pitch coke (or petroleum coke) and slagging agent (bauxite) is added to the furnace in batches.
The metal refined in the furnace is generally viscous. As the thickness increases, the lower part gradually solidification. When the furnace is full, stop the furnace, pull out the furnace body, and remove the upper section of the furnace body to allow the agglomerates to condense. Then take out the clot, crush and finish it; pick out the edges, slag and unqualified parts and return them to the furnace for remelting. The product contains about 80% tungsten and no more than 1% carbon.
Specification
|
Grade |
FeW 8OW-A |
FeW80-B |
FEW 80-C |
|
W |
75%-80% |
75%-80% |
75%-80% |
|
C |
0.1% max |
0.3% max |
0.6% max |
|
P |
0.03% max |
0.04% max |
0.05% max |
|
S |
0.06% max |
0.07% max |
0.08% max |
|
Si |
0.5% max |
0.7% max |
0.7% max |
|
Mn |
0.25% max |
0.35% max |
0.5% max |
|
Sn |
0.06% max |
0.08% max |
0.1% max |
|
Cu |
0.1% max |
0.12% max |
0.15% max |
|
As |
0.06% max |
0.08% max |
0.10% max |
|
Bi |
0.05% max |
0.05% max |
0.05% max |
|
Pb |
0.05% max |
0.05% max |
0.05% max |
|
Sb |
0.05% max |
0.05% max |
0.05% max |
|
Sn |
0.06% max |
0.08% max |
0.08% max |
|
Size |
10-100mm, 5-50mm, 3-30mm |
||
ZhenAn Singapore Customer
ZhenAn Customer Visits
The iron extraction method is suitable for smelting ferrotungsten containing 70% tungsten with a lower melting point. Silicon and carbon are used as reducing agents; the operation is divided into three stages: reduction (also known as slag depletion), refining and iron extraction. In the reduction stage, there is slag containing more than 10% WO3 left after iron extraction in the previous furnace.
ZhenAn Ferrotungsten Buyer
ZhenAn Customer Purchases FeW80
Multiple batches of tungsten concentrate charge are then added, and then ferrosilicon containing 75% silicon and a small amount of pitch coke (or petroleum) are added. Coke) is reduced to smelting, and the slag is discharged when the WO3 content of the slag drops below 0.3%. Then it moves to the refining stage, during which tungsten concentrate and pitch coke mixture are added in batches, operated at a higher voltage, and impurities such as silicon and manganese are removed at a higher temperature. After taking samples for inspection and confirming that the ingredients are qualified, iron extraction begins.
In the past, steel ladles were used to manually dig out iron blocks and put them into the pool. In the early 1960s, Jilin Ferroalloy Factory switched to mechanical iron extraction devices, which improved working conditions. During the iron extraction period, tungsten concentrate and asphalt coke materials are appropriately added according to the furnace conditions. The smelting power consumption is about 3,000 kilowatt hours/ton, and the tungsten recovery rate is about 99%.
FAQ
Q: Are you a trading company or a manufacturer?
A: we are a manufacturer located in Anyang City, Henan Province,China. All our customers come from home and abroad. Looking forward to your visit.
Q: How long is your delivery time?
A: Generally 5-10 days if the goods are in stock, 15-20 days if the goods are not in stock. It is according to the order quantity.
Q: Do you provide free samples?
A: Yes, we could offer the free sample, you only need to pay the freight.
Hot Tags: 70% 80% Of Ferrotungsten Sold
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