Production Process

Extrusion
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Extrusion

  1. Heating: The aluminium alloy ingot known as billet is heated.
  2. Positioning: Once heated, the billet is inserted into a hollow cylinder called container at the end of which a die with a shaped slit is positioned.
  3. Pressing: he billet inserted into one of our two 1,800 tonne or 3,500 tonne presses, moves through the slit through the effect of the pressure exerted by a piston, giving rise to the profile.
  4. Stretching: When the profile comes out of the press, it is taken by a puller to the stretching phase.
  5. Cutting and firing: The profile is then cut to size (length requested by the customer) and sent to the ageing kiln at a controlled temperature to obtain the desired hardness.

Customized packaging by an automated process is the last step of the cycle.

Anodizing
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Anodizing

  1. Reception: goods at warehouse.
  2. Unpacking
  3. Cleaning: surface preparation of the profile.
  4. Optional pretreatments that Anodall offers to perform before anodizing:
    • Sandblasting: produces a uniform and velvety effect over all the visible surfaces. Defects are eliminated
    • Standard brushing: produces a uniform surface with visible marks from the brushing
    • Polishing: produces a bright and clean surface. The defects are only partially removed
  5. Attachment: the profile is attached for the anodization phase.
  6. Degreasing: preparation before anodic oxidation without a further pretreatment. The mechanical marks remain visible.
  7. Anodizing: transformation that reproduces the natural mechanism of oxidation of the surface. At the end of the process this entails substantial maintenance of the dimensions.
  8. Electro-colouring with metal salts: process that customizes the colour of the profile in shades ranging from pale bronze to black. The process uses immersion in an acid bath and, depending on the amount of salt deposited, the desired shade is obtained. Colouring makes the profiles resistant to light and to atmospheric agents.
  9. Sealing: enables the open pores that remain after anodizing to be sealed. If the profile is to be painted, sealing is not carried out as the paint adheres more easily on open pores.
  10. Drying
  11. Detaching profiles
  12. Testing
  13. Packing

Painting
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Painting

  1. Unpacking
  2. Optional pretreatments that Anodall offers to perform before anodizing.
  3. Attachment: the profile is attached for the painting phase.
  4. Pretreatment: surfaces are treated to create an optimum adhesion condition of the layer of colour that will be deposited.
  5. Drying following the pretreatment processes.
  6. Painting for the application, the powder paint is electrostatically charged. The powders are drawn in from 2 tanks by a suction system and, once they are electrostatically charged, they are ejected by guns. The workpieces are coated with synthetic resin-based powder paint that adheres by electrostatic attraction to the profile.
  7. Polymerization of the powders: The profile enters a kiln and once the powders have been deposited on the surface of the profile, they melt through the effect of the high temperature that they meet in the polymerization tunnel and are then transformed into a well-spread, compact, strong and elastic layer that adheres firmly to the surfaces.
  8. Testing
  9. Packing

Sublimation
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Sublimation

Optional phase, following the painting test.

  1. Visual check and preparation of the bars.
  2. Plant loading gate
  3. Positioning the paper: the paper shows the design to be imprinted on the metal through the sublimation process.
  4. Attachment: the paper is made to adhere to the profile, connecting the bags which enclose the bars to special extractors.
  5. Transferring the pigment: The design on the paper is thermally transferred on the painted base. Sublimation occurs inside a kiln. In this way, the thermoplastic film gives up its pattern to the previously painted metal profile, making the finished product aesthetically similar to normal wood.
  6. Blowing: to detach the film from the profile.
  7. Removing paper from bars
  8. Testing
  9. Packing

Extrusion
Discover more
Close

Extrusion

  1. Heating: The aluminium alloy ingot known as billet is heated.
  2. Positioning: Once heated, the billet is inserted into a hollow cylinder called container at the end of which a die with a shaped slit is positioned.
  3. Pressing: he billet inserted into one of our two 1,800 tonne or 3,500 tonne presses, moves through the slit through the effect of the pressure exerted by a piston, giving rise to the profile.
  4. Stretching: When the profile comes out of the press, it is taken by a puller to the stretching phase.
  5. Cutting and firing: The profile is then cut to size (length requested by the customer) and sent to the ageing kiln at a controlled temperature to obtain the desired hardness.

Customized packaging by an automated process is the last step of the cycle.

Anodizing
Discover more
Close

Anodizing

  1. Reception: goods at warehouse.
  2. Unpacking
  3. Cleaning: surface preparation of the profile.
  4. Optional pretreatments that Anodall offers to perform before anodizing:
    • Sandblasting: produces a uniform and velvety effect over all the visible surfaces. Defects are eliminated
    • Standard brushing: produces a uniform surface with visible marks from the brushing
    • Polishing: produces a bright and clean surface. The defects are only partially removed
  5. Attachment: the profile is attached for the anodization phase.
  6. Degreasing: preparation before anodic oxidation without a further pretreatment. The mechanical marks remain visible.
  7. Anodizing: transformation that reproduces the natural mechanism of oxidation of the surface. At the end of the process this entails substantial maintenance of the dimensions.
  8. Electro-colouring with metal salts: process that customizes the colour of the profile in shades ranging from pale bronze to black. The process uses immersion in an acid bath and, depending on the amount of salt deposited, the desired shade is obtained. Colouring makes the profiles resistant to light and to atmospheric agents.
  9. Sealing: enables the open pores that remain after anodizing to be sealed. If the profile is to be painted, sealing is not carried out as the paint adheres more easily on open pores.
  10. Drying
  11. Detaching profiles
  12. Testing
  13. Packing

Painting
Discover more
Close

Painting

  1. Unpacking
  2. Optional pretreatments that Anodall offers to perform before anodizing.
  3. Attachment: the profile is attached for the painting phase.
  4. Pretreatment: surfaces are treated to create an optimum adhesion condition of the layer of colour that will be deposited.
  5. Drying following the pretreatment processes.
  6. Painting for the application, the powder paint is electrostatically charged. The powders are drawn in from 2 tanks by a suction system and, once they are electrostatically charged, they are ejected by guns. The workpieces are coated with synthetic resin-based powder paint that adheres by electrostatic attraction to the profile.
  7. Polymerization of the powders: The profile enters a kiln and once the powders have been deposited on the surface of the profile, they melt through the effect of the high temperature that they meet in the polymerization tunnel and are then transformed into a well-spread, compact, strong and elastic layer that adheres firmly to the surfaces.
  8. Testing
  9. Packing

Sublimation
Discover more
Close

Sublimation

Optional phase, following the painting test.

  1. Visual check and preparation of the bars.
  2. Plant loading gate
  3. Positioning the paper: the paper shows the design to be imprinted on the metal through the sublimation process.
  4. Attachment: the paper is made to adhere to the profile, connecting the bags which enclose the bars to special extractors.
  5. Transferring the pigment: The design on the paper is thermally transferred on the painted base. Sublimation occurs inside a kiln. In this way, the thermoplastic film gives up its pattern to the previously painted metal profile, making the finished product aesthetically similar to normal wood.
  6. Blowing: to detach the film from the profile.
  7. Removing paper from bars
  8. Testing
  9. Packing

logo anodall extrusion blu

ANODALL EXTRUSION S.P.A.
Via del Lavoro 1 - 37060 Trevenzuolo
Verona - P.IVA: 03397980230

REA: VR-333074
Capitale sociale: € 6.250.000