Magaldi Power Spa

AIR QUENCHING HEAT TREATMENT:

The heat treatment of aluminum castings is carried out to increase their strength and hardness, and to change their physical, mechanical and metallurgical properties.

A possible heat treatment is the AIR QUENCHING, classified as T5 heat treatment.

T5 treatment is carried out till a temperature above ambient, typically in the range of 150-200 °C.

Quick cooling (hardening) from the molding temperature (about 450°C) to 150-200°C is needed to improve productivity as the aging time cannot be shorter.

In addition to casting cooling and conveying, the MCC^® AL is also able to carry out the air quenching of aluminum castings.

It consists in blowing a stream of air over the workpieces to rapidly cool them from above their critical temperature.

Guaranteeing a cooling rate of 50°C/min, there is no need for castings re-heating, with consequent benefits in terms of cost and time savings.

Advantages at a glance:

• Guaranteed performance (outlet casting temperature)
• No need for casting re-heating, with consequent time and cost savings
• Integrated solution: cooling and T5 treatment process all in one
• High dependability
• 5 years mechanical warranty
• Compact design. Possibility to work in batch
• Zero sand spillage thanks to the Magaldi Spill Chain and the rotating brush.
• Energy saving (just 1 fan, low energy consumption)

C-TYPE SUPERBELT®:

The C-type Superbelt^® conveyor is specifically designed to handle:

• metal chips and cut-off returns or any industrial waste resulting from metal machining
• Semi-finished and finished products as metal parts or scrap of any shape

It combines the outstanding reliability of the Superbelt^® conveyor with the flexibility and versatility required for the specific field of applications.

The compact design allows using the machine even in narrow spaces while the presence of safety devices prevents any contact with moving parts.

In order to optimize the melting capacity and improve the operating conditions in aluminum foundries, Magaldi has developed a mechanical conveying system able to handle large amounts of aluminum scrap to load the furnace or the shredder, in a reliable way.

Usually, sharp aluminum scraps, which might also be very large and heavy (up to hundreds of kilograms), are loaded into the shredder or in the furnace via buckets, skip loading systems or conventional Apron conveyors, according to a slow and sometimes dangerous process.

To reduce the conveying time and improve the workplace safety, Magaldi customized the Superbelt® technology: a dependable steel belt conveyor made up of partially overlapping steel pans bolted on a steel double-wire mesh, that forms a virtually sealed belt able to withstand heavy shock and impact loads.

The system’s dependability is guaranteed by the “multi-link” construction feature of the belt, a “damage-tolerant” design ensuring continuous operation without any risk of an unexpected outage.

The Superbelt® is able to absorb heavy shock loads: the plates are made of manganese steel with a hardness of ≥400HB and a thickness of 8 + 8 mm.

In addition, the conveyor’s ability to reach steep inclinations (up to 35°) allows to reduce the plant size and easily reach the furnace/shredder loading point.

N-TYPE SUPERBELT®:

Magaldi engineered a special version of the Superbelt® conveyor to fit the requirements of the aluminum industry.

Particularly suitable for light conveying applications, the N-type Superbelt® conveyor protects and easily moves lightweight aluminum castings downstream the die-casting machine up to the de-coring area.

Its smooth operation without vibrations and shaking reduce casting damage, but it also contains silica, which increases safety.

The MCC® AL

(Magaldi Casting Cooler) The MCC^® AL is a cooling system customized on aluminum foundry requirements. It combines the outstanding reliability of the Superbelt^® technology with an efficient cooling process.

A Superbelt^® conveyor moves castings through a cooling tunnel held under negative pressure where a cooling air flows at controlled speed.
Downstream the cooling tunnel, unloading operations can be carried out by operators or manipulators.
An optical detector ensures the proper functioning of the belt in batch or at almost zero speed.

The Magaldi Casting Cooler is generally integrated by the MISS^® to automatically control the cooling parameters in accordance with the different types of castings to handle. 

Linked to the molding line operation signals, the MISS^® receives the ID number of each casting along with the actual casting temperature.

Depending on the above parameters, it automatically adjusts the belt speed and the cooling air flow rate, thus maximizing productivity and cooling efficiency.

The MCC^® AL can be successfully used to:

• Cool hot aluminum castings
• Air quenching heat treatment

Compared to conventional castings cooling technologies, the MCC® offers:

• high mechanical dependability
• flexible layout arrangement, inclined conveyance (up to 35°);
• no heavy foundations required
• efficient air cooling
• low power consumption, low spare parts requirements
• fully integrated supervision system,for automatic and optimized operation
• ability to convey fine core sand without any carry back or spillage during conveying