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Semiworks

The word semiwork is a generic term which defines some item on which some work has already been done, but because it’s still at the initial stages of working process, it can still be used for different production cycles each with a different final product.

The most common semiworks are the tube, the strip, the round wire, the square or rectangular profiles, gold grains, silver grains and many others different profiles.

For any type of semiworks which can be produced IKOI Srl can supply different sizes of furnaces according to the production requirements and needs.

For example our line of products goes from the small furnace which can cast few kilograms of metal per hour to the bib casting plant which can meet the requirement of hundrends of kilos of melted metal.

  • Continuos casting furnace for small and medium productions
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  • Continous casting plant for very high production demands
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Tube

The tube is commonly obtained in 2 different techniques: tube from strip or tube from melting.

Tube from strip

The Tube making cycle from strip begins with fine metal and the alloy which are placed together into a pre-melting furnace.
Then the liquified metal (fine + alloy) goes into a melting furnace where it starts solidyfing (as thick strip) as it exits from a graphite die at the bottom.
The strip gets reduced in thickness as it goes trough the rolling mills. As the thickness gets smaller the metal itself hardens so it’s necessary to do some annealing deoxydating steps into a static annealing furnace.
The strip at the final thickness gets cut to width in the profiling machine.
The profiling machine rounds up the strip to form a tube and weld the 2 ends of the strip in order to form a round tube welded for all its lenght.
The tube can go for any annealing step into a soldering furnace which is equipped in this case for annealing and deoxydation.

  • Premelting furnace
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  • Continuos Casting furnace
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  • Rolling mills for strip

  • Strip cutter

  • Profiling machine (+ welding)

  • Belt furnace for annealing
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  • Tube cutting machine

  • Tumbler

  • Hydrogen and Oxygen generator (H2+O2)
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  • Nitrogen generator (N2)
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  • Chiller units

Tube from melting

The Tube making cycle from melting begins with fine metal and the alloy which are placed together into a pre-melting furnace.
Then the liquified metal (fine + alloy) goes into a continuos casting furnace where it starts solidyfing (as thick tube) as it exits from a graphite die at the bottom.
The tube can go for any annealing step into a belt furnace which is equipped in this case for annealing and deoxydation.

  • Premelting furnace
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  • Continuos Casting furnace
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  • Belt furnace for annealing

Strip

The strip making begins with fine metal and the alloy which are placed together into a pre-melting furnace.

Then the liquified metal (fine + alloy) goes into a melting furnace where it starts solidyfing (as thick strip) as it exits from a graphite die at the bottom.

The strip gets reduced in thickness as it goes trough the rolling mills. As the thickness gets smaller the metal itself hardens so it’s necessary to do some annealing deoxydating steps into a static annealing furnace.

The strip at the final thickness gets cut to width in the profiling machine.

  • Premelting furnace
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  • Continuos Casting furnace
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  • Rolling mills for strip

  • Strip cutter

  • Belt furnace for annealing

  • Tube cutting machine

Wire

The wire making cycle begins with fine metal and the alloy which are placed together into a pre-melting furnace.
Then the liquid metal (fine + alloy) goes into a melting furnace where it starts solidyfing (as thick wire) as it exits from a graphite die at the bottom.

The wire gets reduced in diameter as it goes trough the trains of roll. As the diameter gets smaller the metal itself hardens so it’s necessary to do some annealing deoxydating steps into a static annealing furnace.

The wire reaches its final size after going trough some diamond dies in the drawing machine, at this stage it’s necessary to do a final annealing step only possbile in the continuos annealing furnace because the gauge of the wire it’s very small.

  • Premelting furnace
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  • Continuos Casting furnace
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  • Rolling mills for wire

  • Static annealing furnace

  • Continous annealling furnace

  • Bench drawing machine for wire

Gold grains or Silver grains

  • Gold & Silver Casting Grains Machines Stopper Technology

  • Gold & Silver Casting Grains Machines Pouring Technology

Rectangular or square profiles
  • Premelting furnace
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  • Continuos Casting furnace
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