General Info:
Aluminium is a lightweight, silver like metal. Industrial and construction applications of this metals are very known, however new application at the field of automotive will ensure wide spread use of this metal.
More Information about Aluminium can be found in these links:
http://www.world-aluminium.org
Billets ready for extrusion in one of the extrusion plants.
The Aluminium Extrusion Process:
The Aluminium Extrusion Process:
As known, the extrusion process is a hot process, the dies, are pre-heated to some 450C while the Aluminium billets are warmed up to some 400-500C. This ensure a plastic flow the Aluminium metal via the die's cavities. Cold billets of die can cause the exertion of higher forces on the dies and it can damage them. Besides, the billet can get stucked and the whole extrusion process will be halted, leading to lose in productivity and totally scrapped die, with bigger presses (such as the 5000 tons press) it can lead to lose of few production's days, hence temperature monitoring during all process stages is mandatory.
Temperature monitoring of the extrusion process:
Temperature monitoring of the extrusion process:
The ideal process monitoring methodology is based on temperature control in four locations:
Dies
Billets
Press-exit
Cooling table.
As known accurate temperature measurement of Aluminium is very challenging and various pyrometers are out there tackling this task, the leading company at this field is Accuratesensortechnolgies Ltd. (http://www.accuratesensors.com/en), where their pyrometers cover all the four above mentioned stages using single and dual wave pyrometers.
Their state of the art non-contact temperature measuring systems ensures amazing accuracy of better than 1% and higher repeatability (as high as 6 Sigma).
I will be adding more about their fully automatic isothermal extrusion system on due course. Please stay tune and visit us again in order to read about their top notch production system.
Single Wave Pyrometer:
AST Single Wave Pyrometer for steel, die and other industrial warm processes.
As known accurate temperature measurement of Aluminium is very challenging and various pyrometers are out there tackling this task, the leading company at this field is Accuratesensortechnolgies Ltd. (http://www.accuratesensors.com/en), where their pyrometers cover all the four above mentioned stages using single and dual wave pyrometers.
Their state of the art non-contact temperature measuring systems ensures amazing accuracy of better than 1% and higher repeatability (as high as 6 Sigma).
I will be adding more about their fully automatic isothermal extrusion system on due course. Please stay tune and visit us again in order to read about their top notch production system.
Single Wave Pyrometer:
AST Single Wave Pyrometer for steel, die and other industrial warm processes.
Recently AST has extended their AST pyrometer's family with new models covering the range from 250C to 3300C.
However, quality has many sides and factors and temperature is only one of these. Billet's quality and curvature is mandatory for smooth extrusion and stop loss process. Few commercial billet suppliers guarantee some 10 mm, or even only 5 mm along a total length of 6 meter!
Shiela Marie and Simon can be contacted using their direct addresses, as follows:
shiela@it-imaging.com
simon@it-imaging.com
or via our site http://www.it-imaging.com
The documentation of the Extrusion Die Manager (EDM) will be available soon on the Download section of our site via http://www.it-imaging.com/downloads.php write us a short email and we will send it to you right away
These who prefer to read and view the EDM documentation while visiting our blog, a JPG version of the document can be found below here (Please click on the document to zoom in).
These who prefer to read and view the EDM documentation while visiting our blog, a JPG version of the document can be found below here (Please click on the document to zoom in).
Please stay tune for further information!
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