Regenerative Aluminum Melting Furnaces
Features
- Type: crucible
- Shape: barrel
- Energy: natural gas
- Melting capacity: 100kg/h
- Structure: furnace casing, furnace lining, electronic control system, crucible, burner
- Working principle:The regenerative aluminum melting furnace directly heats the crucible with natural gas burners to melt aluminum ingots/zinc alloy materials.
Furnace structure
- External structure
1) Barrel casing made of 4mm thick steel plate
2) Crucible cover made of 25mm thick steel plate
3) Bottom plate made of 8mm thick steel plate
4) Cover made of 10mm thick steel plate
5) Chimney made of 6mm thick steel plate, can be flipped at 90 degrees - Construction materials of furnace lining
1) Three layers of high temperature insulation boards (Morgan-imported)
2) Insulated cotton with the density of 260
3) High-purity high-temperature insulating brick: mullite (Morgan-imported)
4) Specially developed insulation materials
Crucible
- One-shot isostatic graphite crucible
- Proper operation
1）The crucible must be pre-heated. The first phase of low heat is to dry the crucible, the second phase of high heat is the change the physical property of the glaze in the surface of crucible to better protect the crucible and prolong its service life.
2）The inner wall of the crucible can be coated with a coating agent at first use to prevent molten aluminum from sticking.
3）Correct feeding method: dropping off the aluminum ingot vertically rather than obliquely along the wall of crucible. Avoid large impacts within the crucible.
4）Before shutting down the furnace, the aluminum ingot in the crucible should be cleared to prevent damage to crucible caused by the thermal expansion and contraction of remaining aluminum.
Safety protection device
The electronic control system of tilting gas fired crucible furnace is equipped with automatic alarm systems including an over-heating alarm and material leakage alarm to guarantee production safety.
Parameters
| Retention capacity | ≤350kg (molten aluminum) |
| Rated heating power | ≤200,000kcal |
| Furnace size | length: 1530mm, height: 1100mm |
| Crucible size | outer diameter: 720mm, height: 690mm |
| Furnace weight | 3T--4T |
| Open-hearth melting time | 3-4h/furnace of molten aluminum |
| Temperature control accuracy | ±5℃ |
| Average temperature of molten aluminum | 630℃-750℃ |
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