Titanium Boron Refiner For Aluminum Alloy Casting
1. Added directly to the molten pool — no injection equipment or lance required.
2. Forms TiAl₃ and TiB₂ (or AlTiB₂) nuclei nuclei in the melt, which is what actually refines the grain.
3. It self-agitates during the reaction, dispersing itself through the bath.
4. Simple to dose — the required weight is calculated from the melt weight and put in.
The refiner is added in granular form to the molten pool. As it sinks the salt component gasifies, generating gas around the block, so the block floats. As it rises the gas escapes and it sinks again. This up-and-down movement repeats until the reaction is complete, and it is what disperses the refining particles through the melt without any mechanical stirring. Titanium reacts with boron and aluminum to form TiAl₃ and TiB₂, or (AlTi)B₂, and these compounds act as nuclei on which aluminum grains grow. More nuclei means more grains, and more grains means a finer structure.
During the reaction fumes and flames are produced on the surface of the melt, with the flame reaching roughly 200 mm in height and showing white, red and blue color. This is normal and indicates the reaction is proceeding.
| Feature | Specification |
|---|---|
| Product type | Titanium boron grain refiner for aluminum alloys |
| Form | Granular |
| Active phases formed | TiAl₃ and TiB₂ or (AlTi)B₂ |
| Application method | Added directly to the aluminum molten pool |
| Flame during reaction | Approximately 200 mm, white/red/blue |
Titanium boron refiner is used on any aluminum alloy where grain structure is specified or where casting behavior is being improved. It is standard in wrought alloy production and in foundries casting thin or complex sections.
1. Wrought alloy billet production ahead of a hot top billet casting machine.
2. Rolling slab casting, where grain size affects subsequent rolling behavior.
3. Alloy ingot casting system for remelt and extrusion stock.
4. Foundry casting of thin-wall or complex shapes, where hot tearing is a risk.
1. Packing: 500 grams per piece, 2 kilograms per bag, 20 kilograms per carton, titanium content ≥ 30%.
2. Shelf life: 10 months; keep it in a dry, cool, well-ventilated place and protect it from moisture to prevent deterioration.
