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
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