Injection moulding
Machine specifications:Standard injection moulding machine
Compression ratio: at least 2:1
L/D ratio: at least 20
Guideline processing parameters:Melt temperature: 180 - 220° C (355 - 425°F);
max. 250° C (480°F)
Mould temperature: 25 - 40° C (75 - 105° F)
Injection rate: high
Hold pressure: if possible, none
Moulds:Balanced gate system:
Gate point: Diameter 0,4 to 0,6 mm (0,016-0,024 in.), max. 1,0 mm (0,039 in.)
Gate types: Pin gate, submarine gate, film gate
Venting: 0,01 - 0,02 mm (0,0004-0,001 in.) vent channels
Mould surface: eroded
Ejectors: large-area ejectors
Please always note:
- Soft materials may be compressed, resulting in overfilling.
- The excellent flow characteristics of THERMOLAST® K compounds may cause obstruction of vents
and therefore air entrapment.
Comprehensive information are available in PDF format:
Machine (PDF 30KB) Processing (PDF 50KB) Shrinkage (PDF 65KB) Moulds (PDF 83KB) Trouble Shooter (PDF 27KB) Processing Guide Δ top
Extrusion
Machine specifications:Universal or polyolefin extruders with 3 screw zones
Compression ratio: min. 3.5 : 1
L/D ratio: min. 25
Guideline processing parameters:Feedzone: 150-170° C (300-340° F)
Compression zone: 185-200° C (365-390° F)
Metering zone: 185-200° C (365-390° F)
Extruder head: 185-200° C (365-390° F)
Die: 185-210° C (365-410° F)
Dies:Simple matrix die is sufficient in most cases
Die land: max. 3-4 mm (0,12-0,16 in.)
Die temperature: 185-200° C (365-410° F)
Comprehensive information are available in PDF format:
Machine (PDF 25) Processing (PDF 32KB) Dies (PDF 20KB) Coextrusion (PDF 16KB) Trouble Shooter (PDF 20KB) Δ
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Coinjection moulding
As hard as thermoplastic and as soft as TPETHERMOLAST
® K adheres outstandingly to diverse thermoplastics and is therefore highly suitable for time and cost-saving coinjection moulding. Our compounds are used in combination with other thermoplastics, particularly for hard-soft joints such as seals, non-slip elements and handles. Plane applications are also implemented, e.g. due to THERMOLAST
® K's pleasantly soft and warm surface characteristics.
New ideas and forms are being added on a daily basis.
The future of innovative and successful products lies in coinjection moulding with THERMOLAST
® K.
Comprehensive information are available in PDF format:
Adhesion (PDF 52KB) Machine (PDF 25KB) Processing (PDF 30KB) Mould (PDF 16KB) Trouble Shooter (PDF 32KB) Shrinkage (PDF 32KB) Adhesion table(PDF 32KB) Δ
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