What is Ferro Tungsten?

What is Ferro Tungsten?

Ferrotungsten is an iron alloy mainly composed of tungsten and iron elements, and its tungsten content is generally between 70% and 80%. Ferro Tungsten Specification

Ferro Tungsten Specification

GradeWC minP minS minSi min
FeW8075-850.10.030.060.5
FeW8075-850.30.040.070.7
FeW8075-850.40.050.080.7
FeW70700.80.060.101.0

Ferro Tungsten Uses

The main use of ferrotungsten is as an alloy additive in steelmaking, used to produce tungsten alloy steel, such as high-speed steel. This alloy has excellent properties such as high density, high strength, wear resistance, and corrosion resistance. It is a key material for refining high-speed tool steel, alloy structural steel, magnetic steel, heat-resistant steel, etc. It is indispensable in the steel industry and mechanical casting industry.

Ferro Tungsten Production Process

1. Ore dressing

The production process of ferrotungsten usually uses tungsten minerals as raw materials, among which wolframite is the most important. Studies have shown that the tungsten content of wolframite can be as high as 60% or more, making it one of the most commonly used raw materials in ferrotungsten production. Ore dressing technology is crucial to the quality and production cost of ferrotungsten. Currently, physical and chemical methods are mainly used for ore dressing.

2. Smelting

After ore dressing, the selected ore needs to be smelted. The smelting of ferrotungsten usually adopts the furnace top tungsten smelting method or gas fluidized bed metallurgy method. The main advantage of the furnace top tungsten smelting method is that it can convert raw materials into the required final products in a single process, and can also produce some auxiliary products, such as tungstic acid and ammonium tungstate. The gas fluidized bed metallurgy method has the advantages of low cost, low energy consumption, and environmental protection, and can produce high-quality ferrotungsten in a relatively short time.

3. Powder metallurgy

Powder metallurgy is one of the important production processes in ferrotungsten production. Powders can usually be prepared by high-energy ball milling, high-pressure heating and other technologies. The characteristic of powder metallurgy is that it can produce parts of various complex shapes. At the same time, it can improve the density and mechanical properties of the organization through high-temperature sintering technology, making it more suitable for various industrial applications.

4. Processing

After powder metallurgy, the material of tungsten iron has certain physical and chemical properties and can be processed by various processing techniques. Common processing techniques include extrusion, die casting, sintering, heat treatment, etc. The main purpose of the processing technology is to process the tungsten iron material into the required shape and size, and give it specific properties, such as high-temperature durability, high strength, corrosion resistance, etc.

In summary, the production process of tungsten iron involves multiple links and key technologies, and a complete production line may include ore beneficiation, smelting, powder metallurgy, processing and other steps. In the future, with the continuous development and upgrading of technology, the production process of tungsten iron will continue to improve and better adapt to various industrial production and application needs.

Ferro Tungsten Price

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