Aluminium foundry

The aluminium foundry at Metaz a.s. predominantly manufactures castings for the automotive and electrotechnical industries. It uses the following technologies:

o Casting into machine-shaped sand moulds, with frame dimensions ranging from 350x250 mm up to 800x600 mm and weighing 0.1 – 30 kg

o Casting into hand-shaped sand moulds, with maximum frame dimensions of 1000x1000 mm and weighing 40 kg

o Castings produced by gravitational technology in metal moulds approximately weighing between 0.1 kg and 20 kg
o Castings produced by low-pressure technology in metal moulds approximately weighing between 0.1 kg and 20 kg
o Precision castings produced by low-pressure technology in plaster moulds weighing a maximum of 5 kg

For the technologies listed above we provide the manufacture of cores, using the following methods:

o HB core-shooting
o CB core-shooting
o CT method

We can manufacture castings in materials with the following chemical compositions:

- AlSi10MgMn
- AlSi10CuMn
- AlSi10Mg(Cu)
- AlSi7Mg(0,3-0,6)
- AlSi7Mg(Cu)
- AlSi9Cu3
- AlSi12Mn
- AlSi12(Cu)
- AlSi5Cu3
- AlSi5CuMn
- AlSi 7Cu3

The capacity of the foundry is approximately 3000 t of castings per year. The heat treatment capacity (according to customer requirements) is about 2000 t per year.