PULTRUSION
Description
| Pultrusion is used for continuous production of profiles. In pultrusion process continuous fibres or mats/fabrics (typically glass rovings or carbon tows) are drawn through a resin bath, where reinforcements are soaked. This resin – specially formulated – is typically polyester, vinylester or epoxy, also some other resins are used. These resin-impregnated reinforcements are drawn through a forming guide, that controls reinforcement placement (slots for fibres and other reinforcements). After guide there is a heated die, with several different temperature zones (heating and cooling zones). |
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| Pultrusion |
Contacts
Characteristics
| Costs (tooling / unit) | Up to euro 2000, depends on the size etc.
Machine expensive |
| Volume (units / day) | Typical speed 0.3-2.0 m/min, optimum a long series/run, starting costs may be high |
| Possible Materials |
Reinforcements: Glass/Aramid/Carbon etc. roving/tow type, fabrics/mats Matrix: Polyester, vinylester, epoxy, etc. resins. |
| Size / Shape | Typical size < 200*600 (pultrusion line dimensions)Shape: A constant cross-section, but I can be also conical |
| Mechanical Properties | Line direction (60 %-vol)
Glass TM 30-45 GPA TS upto 1200 Mpa Carbon TM 100-200 GPa (HS-HM) TS up to 3200 Mpa |
| Special Remarks |