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4N 3 layers aluminum billets
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Billets are produced using vertical continuous casting
Compositions : 4N8 to 5N5 pure
RRR Specification :From 700 to 5000, typical spec > 1500
Dimensions :
Extrusion scalped billet D 190 mm x L 480 mm
D 225 mm x L 480 mm
D 147 mm x L 600 mm
(extruded wire is also available)
Quantity :Batches of 4 tons
Certificates :
GDMS analysis
RRR Measurement
UT inspection
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4N 3 layers aluminum billets
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4N (99.99%) Sows of segregated aluminum for high voltage capacitors
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4N segregated aluminum Sows
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PHP developped special 99.99% sows shaped products for supplying casting workshops in order to produce capacitors rolling slabs.
Specifications of impurities are based on segregated metal for low and high voltage
(see attached spec)
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4N segregated aluminum Sows
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4N Aluminum Electrolytic Capacitors
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The aluminum electrolytic capacitor is the biggest business of PHP
Various grades and specifications are produced using both processes (segregation and 3 layers) in order to developp the best performances of the electrical capacity.
PHP is used to deliver any casting operation with tees bars and also any rolling mill with as cast slabs in the world.
The quality of the PHP segregated material is recognized as one of the best for high voltage applications.
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4N Aluminum Electrolytic Capacitors
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Electrorefining
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Electrorefining (the 3 layers process) is used for refining aluminum for 4N and 5N materials
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Electrorefining
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Froges, a part of PHP, a division of Pechiney including Mercus and Froges plants.
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Mercus produces the high purity aluminum. After being cast and hot rolled, Froges delivers it as 4N foil to its customers.
PHP is the only fully integrated high purity foil producer in the world. This ensures full traceability of our products.
Main product : 4N foil for electrolytic capacitors.
PHP is the sole western company delivering high purity aluminum worldwide. Our markets include Europe, USA and Asia.
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Froges, a part of PHP, a division of Pechiney including Mercus and Froges plants.
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Hot rolling of capacitor foils
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Hot rolling of 4N aluminium is carried out in Pechiney Issoire plant.
Hot rolling of capacitor foil must be done under very high quality standards since many final properties of the foil are involved : surface quality, crystallographic texture,….
Hot rolling parameters of each coil (more than 50) are recorded are stored for quality control.
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Hot rolling of capacitor foils
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4N (99.99%) Aluminum Ingots
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4N (99.99%) Three Layers Aluminum sows
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PHP developped a special product for remelting in casting facilties for high voltage capacitors. Material is produced by the electrorefining process
Typical dimensions are 450 kg tees bars in 18t container
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4N (99.99%) Three Layers Aluminum sows
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PECHINEY HIGH PURITY
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PHP is a worldwide provider of High Purity Aluminum products. Purification, alloying and continuous casting are the main issues of PHP.
Purity levels go from high grade Al 99.95% (3N5) for reflectors through 99.99% (4N) for the capacitor market up to 99.9995% (5N5) for the integrated circuits (sputtering targets)
Pechiney High Purity is the only worldwide producer who can guarantee traceability for its high purity metal from ore extraction down to the sale of its ultra-pure billets.
PHP is a division of ALUMINIUM PECHINEY with 100 people between 3 plants:
Auzat (HP primary Al)
Mercus (4N and 5N refining plant)
Lannemezan (HP primary Al and HP products casthouse 3N5 to 4N8)
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PECHINEY HIGH PURITY
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4N (99.99%) electrorefined Aluminum rolling slabs for high voltage capacitors
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4N aluminum slabs of segregated aluminum for high voltage capacitors
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4N segregated aluminum slabs for high, medium and low voltage capacitors
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Refined Aluminum for Casting
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3N8 to 4N6 pure Al grades products (mainly 5 kg ingots) are used to adjust the composition of special alloys for small production units.
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Refined Aluminum for Casting
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Refining Processes
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Presentation of purification processes of pure aluminum. These processes are used for production of 4N and 5N material
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Refining Processes
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3N8 / 4N6 Refined Aluminum Sows
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450 kg tees bars of electrorefined aluminum are produced for supplying the biggest casting operation on a worldwide basis
Purity grades from 3N8 to 4N6 are available according to customer specifications
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3N8 / 4N6 Refined Aluminum Sows
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Segregation Process
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The PECHINEY Segregation process is used for refining high grade aluminum for 4N and 5N products.
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Segregation Process
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