Lost Foam

The term "Lost Foam" refers to foamed models made of expanded polystyrene (EPS) or other gasifiable foam plastics that are lost during the casting process. The high temperature of the liquid metal causes the foam pattern embedded in the sand to evaporate (vaporize) fractions of a second before it meets the melt, whereby it dissolves into the components styrene, toluene, benzene, pentane and air. The resulting gases are extracted at the casting and dumping stations.

 

Advantages of the process:

  • All foam models are identical - low reject rate
  • Near net shape casting possible
  • Production of complicated castings on the basis of glued segments
  • Holes, through holes, oil and cooling channels can be pre-cast
  • Highest product quality
  • Low environmental impact through reuse of the sand
  • Nearly all metals can be cast

 

Teubert Molding Equipment Lost Foam (TVZ LF)

Teubert Molding Equipment Lost Foam (TVZ LF)

 

Teubert Molding Equipment Lost Foam (TVZ LF)

The TVZ LF machine concept has been developed to meet customer requirements for a user-friendly, highly precise and energy-efficient machine.

The Teubert Molding Equipment LF belongs to our Lost Foam series.

This series is characterized by the following technical details:

  • user-friendly and easy-to-maintain low rider version
  • table press with media transfer system
  • take up monoblock molds (also with big and heavy core pulls)
  • the open machine concept
    • allows an easy integration of additional systems, for instance linear handling equipment, robots, etc.
    • realizes extremely wide openings between the press tables
    • allows shortest mold changes and thus short downtimes
  • up to three separately controllable and freely programmable control circuits for instance filling, steaming, cooling, etc.
  • integration of separate control circuits for monoblock molds possible
  • modern energy-efficient steaming system with pre-pressure regulation, direct-steaming as well as upper and lower steaming (energy efficiency package)
  • different drive concepts
  • the linear guidance and the symmetrical high pressure closing of the machine concept guarantee the production of highly precise Lost Foam parts with highest accuracy and reproducibility in the product quality
  • the machine concept gives you the maximum possible flexibility for molding

 

Inside dimension  Model name
1 x 1400 x 950 mm
2 x 680 x 950 mm
3 x 455 x 950 mm
 TVZ 130/90 LF

 

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Teubert Vertical Press Lost Foam (TVP LF)

Teubert Vertical Press Lost Foam (TVP LF)

 

Teubert Vertical Press Lost Foam (TVP LF)

The space-saving Teubert Vertical Press Lost Foam (TVP LF) is used to produce Lost Foam parts with cores which have to be positioned by hand.

The TVP LF belongs to our Lost Foam series.

This series is characterized by the following technical details:

  • table press with media transfer system with tipping function for process reliability
  • modern steaming system with pre-pressure regulation, direct and indirect steaming
  • steam chest systems with horizontal division especially designed for Lost Foam parts
  • manual insert and take-out possible without any risks

 

Inside dimension  Model name
900 x 900 mm  TVP 100/100 LF

 

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Teubert foaming machine Lost Foam (TSA LF)

Teubert foaming machine Lost Foam (TSA LF)

 

Teubert foaming machine Lost Foam (TSA LF)

The Teubert foaming machine LF (TSA LF) concept has been developed to meet customer requirements for a user-friendly, highly precise and energy-efficient machine.

The TSA LF belongs to our Lost Foam series.

This series is characterized by the following technical details:

  • user-friendly and easy-to-maintain
  • available alternatively with steam chest or with separate control circuits for monoblock
  • the open machine concept allows an easy integration of additional systems, for instance linear handling equipment, robots, etc.
  • modern energy-efficient steaming system with pre-pressure regulation, direct-steaming as well as upper and lower steaming (energy efficiency package)
  • frequency-controlled hydraulic system for quick movements and exact compliance of the crack-setting
  • the linear guidance and the symmetrical high pressure closing of the machine concept guarantee the production of highly precise Lost Foam parts with highest accuracy and reproducibility in the product quality
  • the machine concept ensures optimum cycle times and shortest setup time

Inside dimension

 Model name

700 x 1000 mm

 TSA 70/100 LF

880 x 880 mm

 TSA 88/88 LF

1080 x 750 mm

 TSA C LF

 

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Waldshuter Straße 15
78176 Blumberg - Germany

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