Extrusion Dies Overheating Reduction Using Liquid Nitrogen Technology

Increase productivity, better quality and isothermal extrusion

MAIN ADVANTADGES OF USING N5NITROGEN

Get much more than only quality benefits

INCREASE PRODUCTIVITY

Increase productivity by 10% to over 50%

BETTER QUALITY

Better profile surface and Better mechanical characteristics

ISOTHERMAL EXTRUSION

Same quality with higher speed and Longer production runs

WHAT IS N5NITROGEN

System to extrude aluminium injecting liquid nitrogen in the die to eliminate the overheating due to deformation and friction during the extrusion process.

EXTRUSION SPEED WITH AND WITHOUT NITROGEN

Increase extrusion speed without hacing pickups and other overeating defects

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CONTINUOUS RESEARCH

We are performing a research campaign to study how to reduce line forming during extrusion.
Studying the extrusion stop zone on the profile (for a billet change) with a microscope, we verified that extruding without nitrogen those areas are more dirty than using liquid nitrogen.

We are still performing some experimental analysis that are noticing how using liquid nitrogen during extrusion reduces the line forming on the profile.

SURFACE ROUGHNESS DURING BILLET CHANGE

Surface roughness during billet change

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without liquid nitrogen

Surface roughness during billet change

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with liquid nitrogen

SURFACE ROUGHNESS DURING THE EXTRUSION

Surface roughness during billet change

without liquid nitrogen – Speed 30 m/min

Surface roughness during billet change

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with liquid nitrogen – Speed 30 m/min

CHANNELS DESIGN IS ONE OF THE KEY POINTS

Our experts will give you all the required knowledge to design the proper channels

The constant temperature and LIN pressure are achieved by the special design of the die channels.
According to the profile, the channels can be created on the backer, on the die or on the madrel.

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1

Backer

2

Die Cap

3

Die Mandrel

PERFORMANCE GUARANTEED BY SELF-LEARNING AND AUTO PILOT

N5NITROGEN is driven by an advanced software to control the injection parameters

AUTO TUNE automatically setup nitrogen flow and profile speed for a new die

AUTO PILOT automatically open and close nitrogen flow to get isothermal extrusion

BENEFITS NOT ONLY ON HARD ALLOY

Here below is an example of real results achieved on 6060 Alloy

Alloy 6060 (secondary), Press 2200 ton

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