AJ4-1 fluorine free refining agent is a new generation refining agent developed by our company to meet environmental protection needs, which does not contain fluorine elements. It has the function of simultaneous degassing, slag removal, and covering. Suitable for refining clean recycled aluminum resources and primary aluminum resources, as well as clean recycled aluminum resources and aluminum alloy melts.

Features:

1. Having a low melting point, it can effectively adsorb and dissolve solid oxides in the alloy liquid at ordinary refining temperatures, achieving the effects of refining, slag removal, and gas removal.

2. This product has characteristics that are different from conventional products. The smoke and dust generated during the refining process of aluminum alloys are extremely mild, and the volatiles and aluminum slag do not contain fluorine, which can greatly reduce the harm to the environment.

3. While ensuring the refining effect, the amount of slag produced is significantly reduced compared to ordinary refining agents, which is beneficial for reducing burning losses and saving costs.

Usage process:

Crucible furnace: When the temperature of the aluminum liquid reaches around 660-7200C, stir to make the temperature of the aluminum liquid in the crucible uniform. Then add refining agent to the surface of the aluminum liquid, stay for 10-20 seconds, and press it into the bottom of the aluminum liquid with a tool to continuously react with AI2O3 in the aluminum liquid, thereby removing impurities and hydrogen gas. Achieve the effect of purifying aluminum liquid and refining eutectic structure.

Aluminum melting furnace: For larger capacity aluminum melting furnaces, it is advisable to use jet refining method, which has a larger contact area with the aluminum liquid and better gas and slag removal effect. When the temperature of the aluminum melt reaches around 7200C-7400C, the refining agent is added to the powder sprayer, and nitrogen or argon gas is used as a carrier to spray into the aluminum melt, forming a large number of dispersed bubbles in the aluminum melt. The bubbles fully contact the aluminum melt during the upward floating process, bringing the gas and impurities in the aluminum melt to the surface of the aluminum melt, achieving the purpose of degassing and slag removal.

Dosage: 0.15-0.2% of the weight of the aluminum liquid.

Packaging: 2Kg per bag, 20Kg per small bag, 1 ton per large bag.

Storage: Keep in a well ventilated and dry place to prevent moisture.

Shelf life: 18 months. If damp, dry at 150 ℃ and continue to use after passing through a sieve.