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Many information can be found in aluminium-manual, which is being completely revised and will soon be available. In the meantime, please use our glossary for useful word explanations.
- Cast alloy
Alloy, which is intended mainly for the production of castings.
- Cast skin
Very thin, outer edge of a casting; is created during solidification of alloys intended mainly for the production of castings.
- Casting carousel
Circular arrangement of casting dies or moulds around a casting machine, enabling a continuous casting process.
- Casting furnaces
Here is where the melt settles.
- Casting tape
Long semi-finished product which is produced by casting between circumferential bands or rotary casting rolls and coiled into coins.
- Casting wheel
Wheel having on its circumference moulds for receiving molten metal; the melt is solidified during rotation and extracted as an endless strand laterally from the wheel.
- Casting-rolling strip
Semi-finished product with rectangular cross section.
- Chinese script
Branched form of intermetallic compounds in aluminium such as Mg2Si, Al6Mn, Al3Fe, that resemble Chinese characters.
- Chromate treatment
Chemical process where a chromium compound solution is applied to a metal surface, to form a protective chemical coating before paint finishing.
- Circular blank
Circular sheet metal or plate cuttings.
Oxygen compound of aluminium – Al2O3.
Coiled metal strip, refers to wound metal strip or wire.
- Cold rolling
Process by which the sheet metal is introduced between rollers and then compressed below its recrystallization temperature.
- Cold shut
Casting errors observed at the surface; when two fronts of liquid aluminium do not fuse properly in the mould cavity, leaving a weak spot.
- Cold-rolled strip
Intermediate product produced by cold rolling that is rolled up to coils.
Relative length change of a body subjected to compressive forces, major step in the open-die forging process.
- Conductivity, electrical
Property that describes the ability of a material to conduct electric current.
- Contact corrosion
Gradual destruction of a metallic area that is attributable to a corrosion element, consisting of a metal/metal pairing or a metal/electron-conducting solid body.
- Continuous casting
Continuous process for the production of semi-finished products.
- Continuous rolling mill
Roll stands arranged in a row where the guided strip is produced in its final thickness in a single run without changing pressures.
Important operation in the heat treatment of aluminium; prerequisite for this type of heat transfer is strong air movement in the furnace atmosphere.
Selective destruction of grain boundary areas with low dissolution potential.
Slow deformation of materials at elevated temperature, also occurs at stresses below the tensile strength or Rp0.2limit; may lead to deformation and cracks.
- Creep behaviour
Characterizes the behaviour of material under long-term use at elevated temperature; the time-dependent deformation at elevated temperature and constant stress is determined in creep tests.