For manufacturing of porous aluminium products there is no need to use expensive pressure moulds as for sintering technology. In our case casting is done in conventional steel or cast-iron mould, which are available on our production factory in a wide range of different shapes and sizes. After casting of aluminium with salt in a mould and after blank cooling, a machining will be performed on lathe, milling machine, bandsaw or CNC machine. Thus this technology allows us to offer you products of any complexity according to your request.
Features of porous aluminium
DIFFERENT PORE SIZES
variable and regulated pore sizes according to your needs from 0.1 mm to 3.0 mm
homogeneous distribution of the pores over the entire volume
ANY FORM UP TO LARGE SIZES
products made of porous aluminium can be manufactured in up to large sizes and in any form according to the customer requests
EXCELLENT QUALITY-PRICE RATIO
for the manufacturing of porous aluminium we do not use any cost-intensive pressing moulds as sinter technology needs, but conventional casting moulds; products made of porous aluminium have – thanks to innovative and relative simple manufacturing technology – an excellent quality-price ratio
LOW WEIGHT AND HIGH DURABILITY
Due to the high volume porosity of about 55%, porous aluminium shows a low weight but, due to cast structure (not pressed or sintered), at the same time high durability.
COMPLETELY PERMEABLE METAL
aluminium is cast together with crystal salt; afterwards the salt is washed out; the salt grains and their contact points are thus replaced by pores which are all connected with each other and thus the product is permeable over the whole volume
Products made of porous aluminium
Blocks made of porous aluminium
We manufacture and supply blocks made of porous aluminium in various dimensions according to customer specifications.
The maximal possible thickness of the products depends on pore sizes you choose.
Porous aluminium is obtained by casting of liquid aluminium with granulated salt and following salt wash out. The larger are pore sizes, i.e. the larger are salt granules, the easier it is to wash the salt out and thus products with the bigger thickness can be manufactured.
With solid-aluminium parts
We manufacture products in every desired shape and form. It is also possible to cast integral components, combining porous parts and solid (non porous) parts.
According to custom requirements we manufacture products made of porous aluminium together with a non porous part of solid aluminium; both parts will be cast in one peace and have a strong monolithic structure.
Generally the part of solid aluminium will be applied for the implementation of a fastening element such as thread or flange. Such fastening element has a higher strength in comparison to a fasting element made of porous aluminium. However, the part implemented of solid aluminium may be applied not only as a fasting element but for any other needs according to your demand.
We manufacture cylinders of porous aluminium in a wide variety of possible configurations: cylinders can be implemented with or without an inner diameter, in various lengths, with different pore sizes according to your individual requirements.
The innovative and relatively simple manufacturing technology of porous aluminium makes it possible to obtain products of any complexity, form and dimensions according to customer requirements.
For production of porous aluminium we cast liquid aluminium together with granulated salt in a conventional rectangular or cylindrical mould. After blank cooling the material will be machined on a mill or turning center or on a CNC machine, depending on complexity of the product.
By using modern machining equipment from a rectangular or cylindrical blank we easily obtain products of any complexity and geometry and in high quality. This simple approach allows us to turn your most unbelievable ideas into reality.
Porous aluminium is a high porosity metal which is permeable over the entire surface. Aluminium is cast together with crystal salt. Afterwards the salt is washed out. The salt grains and their contact points are thus replaced by pores.
The uniqueness of this technology is, inter alia, the ability to offer our clients not only batch production but also prototypes / single pieces to attractive prices. For manufacturing of porous aluminium items it is not required to apply any particular / costly equipment, as for example pressure moulds, which are needed for production of sintered products. Thus you may easily obtain prototypes made of porous aluminium, test them and, if required, modify, adjust, refine and test the new model till achieving the perfect result.
EXXENTIS Ltd was founded in 2011. With headquarter in Switzerland, near Zurich, EXXENTIS operates successfully in Europe working with clients from different industries. Our products made of porous aluminium are manufactured in our own production facility to the highest quality standards.
We offer you individual technical advice for each new task. In an active ongoing dialogue we can find the optimum solution for your requirements. Our experienced and knowledgeable team of engineers develops when required custom-tailored solutions and individual parts.
poral [@] exxentis [dot] org
Tel: + 41 (0)56 4 300 300
Fax: + 41 (0)56 4 300 309