Polyurethane Rigid Foam Railway Flap Barrier Gate part
Xingang Company
Specializing in the design and manufacture of custom molded polyurethane foam parts,
we have at our disposal various kinds of different formulations of raw material.
Our 15 years of experience in polyurethane molding allow us to manufacture from simple
to very complex custom parts.
We are expert in designing and producing Customized pur foam parts.
Welcome to send us your request about your automotive pur parts goals.
We will help to find out the best Polyurethane parts solution!!
Parameters Form
Items | Unit | No fibreglass fabrics
value | Two layers fibreglass fabrics
value |
Density | g/cmз | 0.3～0.6 | 0.47~0.6 |
Water absorption | g/cmз | | 0.001~0.01 |
Tensile strength | Mpa | 6.86～13.7 | 588.4~784.8 |
Bending strength | Mpa | 7.84～32.3 | 441.3~486.5 |
Compression strength | Mpa | | 392.3~588.4 |
Impact resistance | KJ/㎡ | 9.8～19.6 | ≥30 |
Linear expansion | % | | 0.2~0.4 |
Distortion temperature | ℃ | | 87 |
Volume resistivity | Ω.㎝ | | 1013~1014 |
Surface resistivity | Ω | | 2×1013 |
Values not absolute some may be altered.
TIPS
RIM is the result of a reaction between two liquid components isocyanate and polyol
as they are injected into a closed mould at low pressure. The two components are
mixed together as they flow into the mould as a low viscosity liquid and the reaction, which increases the temperature and the pressure at the surface of the tool,
forms the polyurethane part in the tool cavity.
Polyurethane resins for RIM have grown into a broad range of formulations with
particular physical properties for specific performance requirements.
Rapid types can produce virtually anything from flexible elastomer substitutes,
to foam-core parts to extremely rigid, solid and thin-walled components.
Parts can be supplied primed, painted or surface treated with graphics to simulate
various textures such as carbon fibre.
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