Product Overview
Silicon-barium inoculant is a highly effective inoculant for cast iron, primarily composed of silicon (Si) and barium (Ba). It is widely used in the production of gray cast iron and ductile iron. This product effectively promotes graphite nucleation, improves the microstructure of cast iron, and reduces the tendency toward white cast iron, thereby enhancing the mechanical properties and quality consistency of castings.
Due to barium's strong resistance to degradation, silicon-barium inoculants maintain their inoculation effect in molten iron for an extended period, making them one of the most commonly used inoculation alloys in the modern foundry industry.
Product Features
Strong inoculation capability
Barium significantly increases the number of graphite nucleation sites, enhancing inoculation effectiveness.
Improved cast iron microstructure
Promotes the formation of Type A graphite while reducing Type D and Type E graphite, thereby improving casting quality.
Reduced Tendency for White Cast Iron
Effectively lowers the risk of white cast iron formation under rapid cooling conditions.
Strong Resistance to Degradation
Compared to standard ferrosilicon inoculants, ferrosilicon-barium inoculants provide longer-lasting inoculation effects.
Improved Mechanical Properties
Refines the graphite structure, enhancing the strength, toughness, and wear resistance of castings.
Technical Specifications
|
Element |
Content Range |
|
Si |
65% – 75% |
|
Ba |
2% – 6% |
|
Ca |
0.5% – 2% |
|
Al |
≤1.5% |
|
Fe |
Balance |
Applications
Silicon-barium inoculants are primarily used in:
Grey iron castings
Ductile iron castings
Automotive components
Machinery castings
Pipe fittings and valves
Agricultural machinery castings
Construction machinery castings
Usage Instructions
Silicon-barium inoculants can be added in the following ways:
In-furnace inoculation
In-ladle inoculation
In-stream inoculation
Recommended Dosage:
0.2% – 0.6% (by molten iron weight)
The actual dosage should be adjusted based on the type of casting, production process, and molten iron composition.
FAQ
Q: What is the primary function of silicon-barium inoculant?
A: The primary function of silicon-barium inoculant is to promote graphite nucleation, improve the microstructure of cast iron, and reduce white cast iron structure, thereby enhancing the performance of castings.
Q: For which types of cast iron is silicon-barium inoculant suitable?
A: It is primarily suitable for the production of gray cast iron and ductile iron.
Q: What is the recommended dosage for silicon-barium inoculants?
A: The general dosage is 0.2%–0.6% of the molten iron weight, with specific adjustments made based on production conditions.
Q: What is the difference between silicon-barium inoculants and standard ferrosilicon inoculants?
A: Silicon-barium inoculants contain barium, which provides stronger inoculation capacity and better resistance to degradation.
Hot Tags: ferro silicon barium inoculant, China ferro silicon barium inoculant manufacturers, suppliers, factory
