Acrylic Box Telescopic space
After the processing and completion of the acrylic products there are four points that we need to pay attention to:
First, the ordinary acrylic plate thermal deformation stability of about 100 degrees, so the use of acrylic products when the temperature should pay attention to this value, such as in the continuous use of the temperature should not be higher than 90 degrees.
Second, the hardness of the surface of acrylic products is equivalent to aluminum, so in the use or acrylic processing should be careful to avoid the surface was scratched. If it is scratched by polishing to restore the original glossy surface.
Third, in the slight scratches or electrostatic dust generated by the resulting acrylic products blurred or unclean can be dipped in 1% soap and water in the soft cloth with the wipe can be wiped clean.
Fourth, this is in the process of assembly of acrylic products need to pay attention to the details, because the acrylic sheet has a certain coefficient of expansion, so when the installation must take into account the acrylic plate thermal expansion and contraction factors, when the assembly must be To have a telescopic space gap. PMMA plastic acrylic, also known as polymethyl methacrylate, polystyrene, but crisp, easy to melt in organic solvents, such as light transmission material, the surface hardness is slightly lower, easy to spend. Suitable for the production of transparent insulation parts and strength General parts.
Forming performance
1. Amorphous material, moisture absorption, to be dry, easy to break down, medium mobility, prone to fill the bad, sticky mold, shrink, weld marks and so on.
2. Should be high-pressure injection, in the absence of defects under the conditions of high temperature, high mold temperature, to increase the mobility, reduce internal stress, improve the transparency and strength. Mold gating system surface should be smooth, Eject evenly, and set the exhaust port to prevent foaming.
Acrylic has the above excellent performance, making it very versatile. In addition to being used as a cockpit cover and windshield chord window on an airplane, it is also used as a jeep of windshields and windows, large building sunroofs (which can be broken), screens of television and radar, protective covers for instruments and equipment, , Telescopes and optical lenses on the camera.
