Why more and more customer choose airslip billet casting machine?

airslip aluminum billet casting relies on the formation of an oil-gas lubricated air cushion inside the graphite ring, isolating the molten aluminum from direct contact with the mold. It demonstrates significant advantages across four dimensions: ingot quality, production efficiency, downstream cost, and energy consumption & environmental protection. This method is widely used for high-end 6-series aluminum rods and aerospace/photovoltaic/anodized extrusion billets.

1,The surface quality of the ingot has been significantly improved for airslip billet casting

The surface is extremely smooth with no scratches

The air cushion completely separates the aluminum billet from the graphite ring, resulting in nearly zero friction, effectively preventing aluminum adhesion, scratches, and burrs. The surface is smooth without unevenness, with segregation lumps almost eliminated and cold shut defects reduced by 80%. (Xinhua News Agency, Gansu) 

2,The surface segregation layer is extremely thin for airslip billet casting machine

The thickness of the reverse segregation layer is reduced by more than 60%, and the hard skin layer (skin layer) is extremely thin. Ordinary hot-top aluminum rods require skin removal by turning, while air-slip aluminum rods can be directly extruded without skin removal, significantly saving cutting time and aluminum material loss.

Anodized and polished products exhibit uniform coloration with no surface dark spots or streaks, suitable for high-end decoration and export-grade profiles

3,Internal metallographic structure is more uniform and material properties are better by airslip billet casting machine

Shallow liquid cavity, smooth solidification

The air cushion weakens the primary cooling of the crystallizer, and the heat is mainly cooled by spraying water below for secondary cooling. The depth of the melt cavity becomes shallower, and the solidification temperature difference is smaller.

4,Fine and uniform grain size, without coarse crystal cells for airslip aluminum billet casting

Significantly reduce element segregation, internal looseness, and microcracks; The extruded profile has higher strength, toughness, and bending consistency, making it suitable for 6082 and 7 series high-strength aviation aluminum alloys .

Extrusion molding is more stable and less prone to cracking, waves, and rough surfaces in profiles.

5,Higher production efficiency and increased production capacity by airslip billet casting machine

Casting speed increased by 20%~25%

Low lubrication resistance, controllable cooling, faster pouring speed of aluminum bars of the same specifications, and significantly increased hourly output of a single casting machine.

6,The effective height of the crystallizer is shorter, the equipment occupies less space, and more crystallization holes can be arranged on the casting plate for airslip aluminum billet casting

Stable start stop, low failure rate of aluminum leakage and slag hanging shutdown, and longer continuous production duration

7,Comprehensive cost reduction after extrusion process (maximum economic advantage) by airslip billet casting machine

Save the car leather process

Hot top aluminum bars must be peeled off by a lathe, and the surface defects of air sliding aluminum bars are minimal. They can be directly pressed onto an extruder, saving lathe, labor, electricity, and aluminum scrap losses, and increasing material utilization by 3% to 6%.

8,Faster extrusion speed and longer mold life for airslip aluminum billet casting

Thin skin layer+smooth surface, low friction resistance when the aluminum rod enters the mold, and acceleration of the extruder by 10%~15%; Reduce mold wear and sticking, and lower the frequency of mold repairs.

Homogenization (homogenization annealing) cycle shortened, reducing gas/electricity consumption

9,Lower consumables and water and oil consumption, energy-saving and environmentally friendly

Low usage of casting oil for airslip aluminum billet casting

The oil and gas mixture is evenly supplied, and the oil consumption is much lower than that of ordinary oil lubrication hot top. The load of the supporting oil pollution treatment equipment is lower, and the operation and maintenance costs are reduced.

10,Reduced cooling water consumption for airslip aluminum billet casting

Optimize the secondary water spray cooling structure, save water with equal production capacity, and reduce the cost of circulating water treatment.

Low defect scrap rate, reduced amount of aluminum water returning to the furnace, and reduced energy consumption during melting

11,Adapting to the high-end market, the product has high added value

Suitable for fields with strict requirements for raw materials:

Photovoltaic frame, structural components for new energy vehicles, aluminum profiles for rail transit

High end anode, polishing, spraying decorative profiles for buildings

Aerospace and military high-strength aluminum alloy ingots

Hot top billet casting machine is long term casting method, also good working for building type aluminum profile

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