PA66 (polyamide 66 or nylon 66), PA66 is more widely used in the automotive industry, instrument housings and other products that require impact resistance and high strength compared to PA6.
PA66 is the largest, most diverse and most versatile of the five engineering plastics. Let us look at the characteristics and uses of plastic PA66, as follows:
Characteristics of plastic PA66:
1. It has excellent wear resistance, self-lubricating property and high mechanical strength. However, the water absorption is large, so the dimensional stability is poor.
2. PA66 can maintain strong strength and rigidity at higher temperatures. PA66 is still hygroscopic after molding, the extent of which depends primarily on the composition of the material, the wall thickness and the environmental conditions.
3. When designing the product, the influence of hygroscopicity on geometric stability must be considered. In order to improve the mechanical properties of PA66, various modifiers are often added. Glass is the most common additive, and sometimes synthetic rubbers such as EPDM and SBR are added to improve impact resistance. PA66 is less viscous and therefore has good fluidity (but not as good as PA6). This property can be used to machine very thin components. Its viscosity is sensitive to temperature changes.
4. The shrinkage rate of PA66 is between 1% and 2%. The addition of glass fiber additives can reduce the shrinkage rate to 0.2%~1%. The shrinkage ratio is large in the flow direction and in the direction perpendicular to the flow direction. PA66 is resistant to many solvents, but is less resistant to acids and other chlorinating agents.
Plastic PA66 application:
Widely used in machinery, instrumentation, automotive parts, electrical and electronic, railways, home appliances, communications, sports and leisure products, oil pipes, fuel tanks and some precision engineering products.
Electronics: connectors, spools, timers, switch housings
Car: Cooling fan, door handle, fuel tank cap, air intake grille, water tank cover
Industrial parts: seat, bicycle frame, skate base, textile shuttle, pedal
Sapphire Window
Sapphire windows are ideal for harsh conditions, including environments subject to high temperatures, high pressures, strong vacuum, or corrosive atmospheres.
Sapphire windows are extremely stable and resistant to attack by strong acid due to sapphire`s high dielectric constant.
Sapphire windows offer wideband transmission from UV to Mid-IR (0.15-5.5µm).
Sapphire windows can withstand considerably higher temperatures than most optical windows with zero degradation.
High
thermal stability and excellent thermal conductivity make the sapphire
window suitable for the applications in high power. The loss in a
sapphire window is less than in another common Optical Window
CCRQ supply a wide range of sapphire windows including
Round Sapphire Windows, Rectangle Sapphire Windows, Step Sapphire
Windows,Sapphire Tube, Sapphire Pin, Sapphire Rod Lens, Sapphire Light
Guide Block,Sapphire Prisms, Sapphire Ball Lens, Sapphire Half Ball
Lens, Sapphire Dome, Sapphire Wedged Window and Custom Sapphire Windows with various shapes and sizes.
Optical Sapphire Window,Sapphire pin,Sapphire tube, Sapphire Ball/half ball lens, Sapphire Prism, Sapphire Bearing, Sapphire Light Guide Block, Sapphire Step window
Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com