Carburizer

Why Choose Us

Anyang Jiashike Metal Co.,LTD,as the leading manufacturer of ferroalloy materials in China.It is a comprehensive enterprise integrating scientific research, processing and production, and import and export trade.

Experienced
Have a good reputation with more than 20 years experience in ferroalloy.

Wide Product Range
We mainly produce high-quality metals and alloys, and its business scope involves metallic silicon, ferrosilicon, silicon-calcium alloy, silicon-carbon alloy, natural graphite powder and other products.
Provide customized plan according to your requirement ,advanced after-sale service will provided by our experienced sales team.

Advanced Equipment
Our company has 10 sets of medium frequency electric furnaces and 2 sets of large wet and dry balling machines.

Rapid production
With annual output of balling agent (rare earth silicon and magnesium alloy), inoculant (silicon, barium, calcium, strontium, etc.), silicon calcium, silicon barium calcium, Silicon aluminium alloy, silicon and magnesium core wire, silicon and calcium core wire, pure calcium wire and other additive alloys for steelmaking and casting, about 20,000 tons.

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Advantages of Carburizer

Increased Mechanical Strength

We offer a variety of transmission components, including sprockets, roller chains, gears, couplings, racks, hubs, pulleys, taper sleeves, bearing seats, and more.

Enhanced Wear Resistance

Carburized steel has a hardened surface layer that is more resistant to wear and abrasion, improving the longevity of the part.

Improved Fatigue Strength

Carburizing helps to improve the resistance of steel parts to fatigue failure, allowing them to withstand repeated loading without breaking.

Suitable for Complex Parts

Carburizing can be performed on parts of varying complexity, making it suitable for a wide range of applications.

Types of Carburizer

High Carbon Anthracite Coal Coke Calcined Petroleum Coke Cpc For Steel Making

low sulfur low ash calcined petroleum coke

Metallurgical Coke Carburizer
The so-called metallurgical coke carburizer is the large coke usually used in cupola. Its function is not only to melt, but also to carburize the metal burden. Its index is no longer mentioned.

Calcined Coal Carburizer
Calcined coal carburizer is mainly used in steelmaking enterprises, and some foundries are used in grey cast iron. The disadvantage is low carbon content, slow melting, waste of electricity and large residual.

Petroleum Coke Carbon Additive
Petroleum coke carbon additive mainly used in steelmaking, gray cast iron, brake pads, core-wrapped wires and so on.

Graphite Carburizer
Graphite carburizer with fewer manufacturers, mainly made of graphitized petroleum coke and graphitized electrodes. The general composition is carbon content > 98-99.5% and sulfur < 0.05-0.03. It is mainly used in nodular cast iron. Characterized by fast absorption, high carbon and low sulfur.

Natural Graphite Carburizer
Natural graphite carburizer, mainly natural graphite, carbon 65-99 range, mainly used in steelmaking plants, foundries are not applicable.

Composite Carburizer
Composite carburizer graphite powder, coke powder, petroleum coke and other leftover materials are used.

Applications of Carburizer

Maritime
In the maritime industry, carburized components are used in ship engines and gear systems, offering resistance to saltwater corrosion and mechanical wear.

Aerospace
Aircraft components, such as landing gear and engine parts, benefit from the high strength and fatigue resistance of carburized steel.

Agribusiness
Agricultural machinery requires durable parts that can withstand harsh conditions, for which carburized steel is ideally suited.

Industrial Manufacturing
Carburized gears, bearings, and tools are common in manufacturing equipment, where they provide enhanced longevity and performance.

Automotive
In the automotive industry, carburizing is used for critical components like gears, shafts, and bearings, which demand high wear resistance and strength.

Manufacturing Process of Carburizer

The Raw Material Mixing
The petroleum coke is first ground into a 300-mesh powder and then mixed evenly with a carbon-containing material. Then add asphalt and mix evenly to get mixed raw material.The mixed raw material comprises (By weight percentage) petroleum coke 15-25%, asphalt 1-3%, and carbon-containing material 60-80% (The mixing ratio of micropurified graphite and free carbon is 3:2).

Pretreatment of Raw Material
Add water to the mixed raw material, and put it into a rotary granulator machine to granulate it.

Surface Treatment
Put the processed granules into the drum and rotate until the surface is smooth. Removal of protrusions and burrs can improve the uniformity of graphitization. This process takes 4-10 hours.

Sieving
Separate the smooth surface granules, remove granules with a size greater than 8mm, crush them and repeat the surface treatment process until the size is less than or equal to 8mm.

Drying
Put the Sieved particles into a vertical dryer. The drying temperature of the vertical dryer is 80℃-120℃, and the drying time is 60min-80min. Ensure that the water content of the material is 1% or less.

Graphitization
Put the dried particles into a graphitization furnace, and calcined at 2300℃-2800℃ for 8-10 days.

Packaging
Cool the calcined particles, and according to the particle size classification packaging. The sizes are 0-2mm, 2-5mm, and 5-8mm.

FAQ

Q: What are the storage requirements for carburizers?

A: Carburizers should be stored in a dry, well-ventilated area to prevent moisture absorption and contamination, which can affect their performance during metallurgical processes.

Q: What are the common types of carburizers?

A: Common types of carburizers include graphite (natural or synthetic), petroleum coke, anthracite coal, and charcoal, each selected based on the specific requirements of the metallurgical process and the desired quality of the end product.

Q: What are the main applications of carburizers?

A: Carburizers are primarily used in steelmaking, foundries, and casting processes to adjust carbon levels, improve the mechanical properties of metals, and enhance the quality of cast iron, steel, and other alloys.

Q: How does a carburizer improve metal quality?

A: Carburizers improve metal quality by ensuring the correct carbon content in the molten metal, which enhances hardness, tensile strength, wear resistance, and machinability in the finished product.

Q: What industries use carburizers?

A: Carburizers are widely used in industries such as steel production, foundries, automotive, aerospace, and heavy machinery manufacturing, where high-quality metal components with precise carbon content are required.

Q: How is a carburizer added to molten metal?

A: A carburizer is typically added directly to molten metal in furnaces or ladles, where it dissolves and distributes uniformly, increasing the carbon content and improving the overall metallurgical properties of the metal.

Q: What are the advantages of using synthetic graphite as a carburizer?

A: Synthetic graphite carburizers offer advantages such as high purity, low sulfur content, consistent carbon levels, excellent solubility in molten metal, and minimal impurities, making them ideal for high-precision applications.

Q: What factors affect the selection of a carburizer?

A: Factors affecting the selection of a carburizer include its carbon content, purity, ash content, sulfur levels, solubility, particle size, and compatibility with the specific metal or alloy being produced.

Q: What is the role of carburizers in the production of cast iron?

A: In cast iron production, carburizers are used to increase the carbon content, improve the graphite structure, and enhance properties such as strength, wear resistance, and thermal conductivity in the final product.

Q: Can carburizers be used in non-ferrous metallurgy?

A: While carburizers are primarily used in ferrous metallurgy, they can occasionally be used in non-ferrous processes, such as in the production of certain aluminum alloys, where carbon plays a role in refining or modifying the metal properties.

Q: Are carburizers environmentally friendly?

A: Certain carburizers, such as those derived from recycled graphite or eco-friendly sources like biomass charcoal, are considered environmentally friendly, as they help reduce waste and support sustainable metallurgical practices.

Q: What are the benefits of using petroleum coke as a carburizer?

A: Petroleum coke carburizers are valued for their high carbon content, low cost, and good solubility in molten metal, making them a popular choice for large-scale steelmaking and foundry operations.

Q: How do you ensure uniform distribution of a carburizer in molten metal?

A: Uniform distribution of a carburizer is ensured by adding it in controlled amounts, thoroughly stirring the molten metal, and selecting a carburizer with good solubility and appropriate particle size for the specific process.

Q: What is the typical carbon content of carburizers?

A: The carbon content of carburizers varies depending on the type but generally ranges from 90% to 99%, with synthetic graphite and petroleum coke offering the highest levels of carbon purity.

As one of the most professional carburizer manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy carburizer in stock here from our factory. For customized service, contact us now.

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