Inorganic core coating
They are also breathable and this allows the air in the mould to come out during the casting process.
These two characteristics must be preserved. However, you must also pay special attention to reducing sintering effects.
In this regard, Altea has designed a specific powder that, applied electrostatically to the cores using the Dry Lub system, maintains the characteristics of the cores. This way, it prevents alloy penetration and improves earthwork, while leaving the surfaces cleaner and smoother.
The benefits are particularly visible in narrow cavities, which require meticulous and very expensive cleaning operations (specific steps for oil and water in vehicle engines, turbine parts, etc.) to ensure the absence of residues when the piece is complete.
The inorganic core coating process is the result of extensive research, which involved different companies to manufacture parts of the vehicle chassis with walls 2.5 mm thick.
As it often happens, it has found its ideal development in the production of vehicle engine blocks.
Unaltered core permeability
No core alteration
Reduced sintering effect
HOW THE DRY LUB SYSTEM WORKS
The product is electrostatically applied to a dielectric chamber, which allows it to spread evenly along the core without altering its breathable properties.
The amount of product required to obtain good results is extremely small, i.e. 1 g per core to manufacture a 4-cylinder engine block.
Watch it in action
Can the powder change the melting quality?
How does it keep permeability unaltered?
Does the powder fall off when the core is placed in the mould?
How is the product applied electrostatically?
Is this process expensive?
Isn’t powder dispersed into the environment?
Is the powder toxic?
The products we use are not toxic and meet all EC parameters.
How will the work environment be on board the die-casting machine?
By eliminating the water-based release agent we have eliminated oil mist and waste water as well as subsequent depurations. Moreover, we have reduced suction-related consumption.
What criticality can we find if we want to integrate the Dry Lub System into our production cycle?
Technically none, because the lubrication head of the Dry Lub System is made specifically for the die casting machine in which it is mounted. Consider that the powder is almost invisible and the application is really fast.
Is it possible to test all this?
This first stage is totally free of charge for the client.