Thanks to green sand casting it is possible to produce both mass quantities and small batches, ranging in weight from a few grams to tens of thousands of kilograms. Excellent production versatility and affordability with the necessary equipment.
RESIN SAND
The resin sand process, although conceptually similar to green sand casting, is different due to the type of elements used in the mould construction. In fact, phenolic and urea-furan resins are used.
Technical characteristics
GREEN SAND
Excellent production versatility and affordability with the necessary equipment.
RESIN SAND
The phenolic and urea-furan resins considerably harden the sand and improve the quality of the castings produced both in terms of surface quality, by decreasing surface roughness, and in terms of adherence to the design dimensions.
Production facilities
Our green and resin sand foundries dispose of facilities for the production of all kinds of components with different shapes, sizes and weights. Our mould plates range from 200 to 2000.
We have our own core-production division with automatic tilting machines for the production of cores through shell-moulding processes, in order to produce components with smooth and homogeneous surfaces and highly precise castings. Cold-box processes are also used during core production to ensure high quality standards.
Production
Our production is carried out by different automatic moulding lines with robotised casting: the most commonly used mould plate range from: 460 x 520 h 175 + 175; 600 x 800 h 285 + 285; 700 x 600 h 220 + 220; 800 x 800 h 300 + 300; 1000 x 800 h 400 + 400; 1200 x 800 h 450 + 450; 1400 x 900 h 500 + 500
For even larger parts we use ad hoc mould plates, manual moulding and polystyrene models.
Controls and analysis
The main controls carried out within our production cycle are: circulating sand test; vacuum test to check the presence of gas inside the molten aluminium; control of the castings produced during the moulding and casting phase; dedicated visual monitoring during the finishing phase (deflashing and blasting); X-ray control; penetrant testing; other non-destructive testing.
Excavation Treatments
The emptying of the castings from the cores takes place by means of furnaces for automatic decoring and of stations with pneumatic vibrators for manual decoring. The components are then cut on conventional sawing machines or by means of robotic cutting cells depending on the size of the parts.
The castings can be supplied raw (carefully deflashed, sandblasted or vibrofinished), heat-treated (tempered, through stress relieving), mechanically processed, painted and anodised.
Resin Sand Foundry
Disamatic
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Features
Use
The DISAMATIC production line is used in cast iron castings and is the recommended technology for fast manufacturing.
Production
The Disamatic automatic production lines, thanks to their modern technology, melt parts ranging from 0.1 kg to 40 kg. The company uses automatic green moulding systems (sand with a mixture of bentonite, silica and water) for the production of small parts weighing up to 40 kg.
Controlli e analisi
The testing laboratory is an integral part of the production process. This allows the metallurgical and structural levels of production to be kept under control, in compliance with UNI standards.