Pre-heating cycle with Moby Dick system
Pre-heating time very small or practically zero even for thick profiles.
Having the oven always at regimen with the air and structure
always hot, not having baskets and practically no preheating
the total treatment time is very reduced from traditional systems (approx 3-4
hours).
Profiles disposed as maps.
The heat reaches all the surfaces of all the profiles as
they are not stacked in baskets.
The hot air does not need to be pushed very fast to reach all profiles eliminating
profile scratching.
Pre-heating cycle with high basket ageing ovens
Preheating time approx. 3/4 – 1 hour.
Total treatment 4.5 – 6 hours.
We need to heat up the air, the baskets and the aluminium.
The baskets also need to be heated slowing down pre-heating.
The heat reaches all profiles having low preheating.
Having to over heat the air to quickly arrive to treatment
temperature can sometimes cause profiles to loose their mechanical
properties.
Pre-heating cycle with traditional ageing ovens
Preheating time approx. 3/4 – 1 hour.
Total treatment 4.5 – 6 hours.
We need to heat up the air, the baskets and the aluminium.
Profiles stacked in high baskets.
The baskets also need to be heated slowing down pre-heating.
The heat reaches all profiles having low preheating.
Having to over heat the air to quickly arrive to treatment
temperature can sometimes cause profiles to loose their mechanical
properties.
Ageing time: 3-4 hours (6060 alloy).
Homogeneity of hardness (heating is homogeneous on all surfaces and better distributed).
Capacity: 3000-3500 kg/h (more material aged in less time).
Baskets and spacers: none.
Automatic (revolutionary concept of handling profiles: no manual procedures, completely automatic from gauging to packing, no man touch, no personnel).
Safety: all the machine is segregated from the rest of the line with no over head movements or man touch.
Space required: approx 500-600 sqm (no manipulators, no floor rollways, no stackers).
Thermal energy (approx less 50% consumption).
Organization (automatic first in–first out).
Continuous (cycle in continuous not static, no down times).
Possibility of multi-packing at same time.
Multi–story oven with usually 6 floors.
Doors: 6 in loading and 6 in unloading (approx 1200 mm x 250 mm) very low heat loss.
Can handle all profiles up to 8000 mm long and 250 mm high, batches 1200 mm wide.
Less machines give less problems.
| 1Map loader | 5Transfer strands to packing | 9Burners |
| 2Entrance doors | 6Rollway to packing | 10Transfer strands for furnace bypass |
| 3Exit doors | 7Ventilators | |
| 4Map un-loader | 8Inspection doors |
The
big mass of this structure helps to keep the temperature homogeneous inside
the oven from 3 to 5%.
The profiles are always moving on kevlar pads or rolls and all the movements are slow and smooth with no jerks and with profiles never touching each other eliminating scratches.
The material is distributed with big space between the maps giving that the heat reaches all faces of the profiles in the same way.
Thanks to special hot air distribution system and continuous air movement not over 1 m/s even very small profiles can move inside the oven with no problem or collision.