| Pay. more attention to the usage of acrylic sheets | |
| Temperature : | Acrylic sheets are softened
with heating at 100©$X4 Centigrade or over. To prevent from becoming soft, please keep units beyond the place over 100©$X4 Centigrade. |
| Scratch : | The hardness of surface
is equivalent to aluminum, thus be careful to surface protection during process. If there are scratches on the surface of acrylic sheets, polish them with cleaner used for brass that can remove its brilliant surface |
| Cleaning : | Due to acrylic sheet with
static electricity, clean the surface with soft and dry cloth wetted 1% soap water when there are dust on the surface. |
| Swell : | The coefficient o heat is
larger and its tension is about nine times of other metal materials. Remain enough space for its contractility to variable temperature while you install and fix acrylic sheets steady. |
Special Instruction Under Installation
1.Reserve enough space for contractility, the elasticity of cast acrylic
sheet per meter is as following, according to the temperature.
(A) After finishing processed acrylic novelties at 10 Centigrade,
the temperature raises to 50©$X4 Centigrade 1000 x 8 x 105 x
(50-10) = 3.2m/m (elongation)
(B) After finishing processed acrylic novelties at 10 Centigrade,
the temperature falls to -10©$X4 Centigrade 1000 x 6 x 105 x
(30+10) = 2.4m/m (shrinkage)
You can consult general settlements to prevent from troubles as following
:
1.Reserve the frame for contractility
2.MaKing ellipical hole with screw
3.Cushion material as elastic as rubber
4.Making acrylic novelties into unprominent shape.
5.Using form to increase the cross-sectional coefficient avoiding interior
stress.
2.Prevent Transformation
1.Forming
acrylic sheets into wave, wrap and through to increase cross-sectional
coefficient in order to prevent
trans formation from the weight of acrylic
sheet itself and lasing
2.Increasing
thickness of acrylic sheet as larger length and dimension.
3.Counting
thickness, tension tolerance and bending strength of acrylic sheet to
endure wind pressure on the
surface.