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Industrial Plastic Insulators PAI/PPS CNC Turning And Anti-Static Coating
What is Special Engineering Plastic?
Special engineering plastics are a type of high-performance polymer
with characteristics such as high strength, high temperature
resistance, corrosion resistance, electrical insulation, and
lightweight. Common types include:
PEEK: High temperature resistance (250 ° C), used in aerospace and
medical applications.
PI: High temperature resistance (above 300 ° C), used for
high-temperature insulation.
PPS: Chemical corrosion resistance, used in automobiles and
electronics.
PEI: Flame retardant and low smoke, used for aircraft interior and
electronics.
PTFE: Corrosion resistant, low friction, used for sealing and coating.
Widespread Use of Special Plastics in the Aerospace Industry
1. PEEK (polyetheretherketone)
Performance advantages:
High temperature resistance: Long term use can reach a temperature
of 250 ° C, and short-term tolerance can exceed 300 ° C.
High strength: The tensile strength can reach 90-100 MPa, close to
certain metals.
Chemical corrosion resistance: has excellent resistance to fuel,
hydraulic oil, solvents, etc.
Wear resistance: low friction coefficient, suitable for
manufacturing bearings and seals.
Lightweight: The density is only 1.3 g/cm ³, much lower than that
of metals.
Engine components: seals, bearings, gaskets, etc., need to work
stably under high temperature and high pressure.
Structural components: brackets, connectors, etc., replacing metal
to reduce weight.
Cable insulation: high temperature resistant, flame-retardant, used
in aircraft electrical systems.
2. PI (Polyimide)
Performance advantages:
High temperature resistance: Long term use can reach temperatures
above 300 ° C, and short-term tolerance can reach 500 ° C.
High mechanical strength: tensile strength exceeding 100 MPa, high
rigidity.
Low thermal expansion coefficient: Excellent dimensional stability
at high temperatures.
Electrical Insulation: Excellent insulation performance, suitable
for electronic and electrical applications.
High temperature insulation material: used for insulation layer and
cable insulation around the engine.
Bearings and seals: operate stably under high temperature and high
load conditions.
Structural components, such as brackets, bushings, etc., replace
metal to reduce weight.
3. PPS (Polyphenylene Sulfide)
Performance advantages:
High temperature resistance: The long-term use temperature can
reach 200 ° C, and the short-term can withstand 240 ° C.
Chemical corrosion resistance: has excellent resistance to acids,
alkalis, solvents, etc.
Flame retardancy: UL94 V-0 level flame retardant, suitable for
aviation safety requirements.
Dimensional stability: Low moisture absorption, stable performance
in humid environments.
Sensor housing: high temperature resistant, corrosion-resistant,
used for engine monitoring systems.
Electrical connectors: flame retardant, insulated, used for
aircraft electrical systems.
Pipelines and valves: resistant to chemical corrosion, used in fuel
and hydraulic systems.
4. PEI (polyetherimide)
Performance advantages:
High temperature resistance: Long term use temperature can reach
170 ° C, short-term can withstand 200 ° C.
Flame retardancy: UL94 V-0 level flame retardant, low smoke and
non-toxic, in compliance with aviation safety standards.
High rigidity: After glass fiber reinforcement, the mechanical
properties are significantly improved.
Easy to process: can be formed through injection molding, extrusion
and other processes.
Interior parts: seat brackets, panels, ventilation ducts, etc.,
must meet flame retardant and low smoke requirements.
Electronic equipment casing: high temperature resistant, insulated,
used for protecting aircraft electronic equipment.
Pipelines and connectors: resistant to chemical corrosion, used in
air and liquid transport systems.
5. PTFE (polytetrafluoroethylene)
Performance advantages:
High temperature resistance: Long term use temperature can reach
260 ° C, short-term can withstand 300 ° C.
Low friction coefficient: self-lubricating, suitable for
manufacturing bearings and seals.
Chemical corrosion resistance: almost unaffected by all chemicals.
Electrical Insulation: Excellent insulation performance, suitable
for electrical applications.
Aerospace applications:
Seals: such as O-rings and gaskets, used for fuel and hydraulic
systems.
Bearings and guides: low friction, wear-resistant, used for moving
parts.
Coating: Used on aircraft surfaces to reduce friction and
corrosion.
CNC Machining Tolerance
Precision Machining | Metals, PEEK, And ULTEM with Drawing | Other Plastics with Drawing | No Drawing |
Linear Dimension | +/- 0.0025 mm +/- 0.0001 inch | +/- 0.05 mm
+/- 0.002 inch | ISO 2768 Medium |
Hole Diameters (Not Reamed) | +/- 0.0025 mm
+/- 0.0001 inch | +/- 0.05 mm +/- 0.002 inch | ISO 2768 Medium |
Shaft Diameters | +/- 0.0025 mm
+/- 0.0001 inch | +/- 0.05 mm
+/- 0.002 inch | ISO 2768 Medium |
We Also Provide Manufacturing Services for Any Other Metal and Plastic Materials
Like stainless steel 201 302 303 304 305 309 310 316 317 321 347 430 410 416 420 17-4PH.etc
Aluminum alloy 085 1080 1070 1050 1N30 1085 1080 107 1100 1200AL 2100 2014 2017 2024 2117 2018 2218 2618 2219 2025,Titanium alloy TA1/2/3/4/5 TC4/6/11
Brass H59 H62 H63 H65 H68 H70 H75 H80 H85 H90 H96 or other brass alloys
Copper H96 H85 H62 T1 T2 T3
We will do our best to meet any requirements you make. If you send us drawings, we can provide you with the best solution in a short period of time, just to provide you with the best service and products