Calcium-aluminum Cored Wire

Performance Characteristics

 

The main components are calcium (Ca) and aluminum (Al). Generally, the chemical composition of the calcium core should be ≥ 96.5%, and that of the aluminum powder should be ≥ 95%.

 

• Strong Deoxidation and Desulfurization Ability: Both calcium and aluminum are strong deoxidizers, which can effectively remove oxygen in molten steel. At the same time, calcium can react with sulfur to form sulfides such as calcium sulfide, thereby reducing the sulfur content in steel and improving the purity of steel.
• Improve the Morphology of Inclusions: It can change the morphology and distribution of inclusions in steel, transforming them from long strips or flakes into spherical or short columnar shapes, reducing the adverse effects of inclusions on the properties of steel, and improving the toughness, ductility, fatigue resistance, etc. of steel.
• Increase the Alloy Yield: By directly sending elements such as calcium and aluminum into the interior of molten steel, the oxidation loss of elements on the surface of molten steel is reduced, the yield of alloy elements is increased, and the production cost is reduced.
• Convenient Wire-feeding Operation: It has an appropriate diameter and length and can be accurately inserted into the ideal position of molten steel or molten iron through professional wire-feeding equipment for precise addition. The operation is simple and convenient, which is conducive to stabilizing the production process and improving product quality.

 

• Raw Material Preparation: Select high-purity calcium ingots and aluminum powder as the main raw materials, and prepare suitable steel strips.
• Calcium Ingot Treatment: Remove the surface oxide layer impurities from the calcium ingots, then put them into a well-type melting furnace and heat up to 500°C, and then continue to heat up to 850°C. Keep the temperature until the calcium ingots are completely melted. Add sodium chloride accounting for 1.5% of the weight of the calcium ingots into the furnace for dilution, and remove the slag layer in the furnace to obtain molten calcium metal.
• Calcium Rod Preparation: Pour the molten calcium metal into a calcium rod mold. After cooling and forming, take out the calcium rod material, then process it into a smooth-surfaced calcium rod. Dip it in wax and store it at room temperature under nitrogen filling.
• Calcium Wire Making: Select a calcium wire mold and preheat it in a preheating furnace to 300 - 340°C. Put the calcium rod into a heating furnace and heat it to 300 - 350°C. Then put the preheated calcium wire mold and calcium rod into an extruder to extrude the calcium wire. Wind the extruded calcium wire into a coil and store it under nitrogen filling.
• Composite Structure Fabrication: Select slow-release aluminum, wrap and press the two sides of the slow-release aluminum along the axial direction of the calcium wire coil to completely cover the calcium wire coil inside the slow-release aluminum, obtaining a composite structure of a calcium metal core and a slow-release aluminum layer.
• Cored Wire Forming: Select a steel strip, wrap and press the two sides of the steel strip along the axial direction of the composite structure to produce the calcium-aluminum cored wire.

Water-Proof Plastic woven bag, 1000kg per bag or as your requirements.

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Frequently Asked Questions

Q: Does the product accept customized service? What specific aspects can be customized?

A: The size and metal content of the product can be customized.

Q: Are samples provided free of charge?

A: Quality customers can provide samples.

Q: How many years of production experience do you have?

A: Fengyang Metallurgical Co., Ltd., established in 2005, was one of the earliest pioneers in Anyang to supply raw materials to steel plants. 

Q: Whether quality inspection can be performed?

A: It can take samples for testing and provide proof of testing.

Q: Is it possible to deliver quickly?

A: Generally, it will be shipped within two weeks.  

Q: What is the minimum order quantity?

A:  What is the minimum order quantity?

Q: Are customers online 24 hours a day to answer questions?

A: Professional sales team, support before and after sales 24 hours online answer.

Q: What are the after-sales services?

A: Experienced and skilled service team can respond to customer feedback in a timely manner, and quickly solve the problems encountered by customers in the use of products to ensure that customers have no worries.

 

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