Ultem 1000 (PEI estándar/sin relleno)

Ultem 1000 (Polyetherimide) is a high-performance amorphous thermoplastic that blends exceptional thermal, mechanical, and electrical properties. Renowned for its natural amber transparency and inherent flame resistance (UL94 V-0), it is the material of choice for demanding aerospace, medical, and electronic applications. Jucheng Precision specializes in the precision CNC machining of Ultem 1000, utilizing advanced 5-axis milling and stress-relieving annealing processes. Our expertise ensures that complex PEI components, such as medical manifolds and electrical insulators, are produced with tight tolerances and superior surface finishes while remaining free from the stress cracking common in this high-performance polymer.

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Variantes de material Ultem (PEI)

Grado	Nombre común	Características clave	Aplicaciones típicas
Ultem 1000	Estándar sin carga	Amber translucent. Excellent dielectric strength and flame resistance (UL94 V-0). FDA compliant.	Electrical insulators, medical manifolds, microwave parts.
Ultem 2300	30% con relleno de vidrio	Highest rigidity and dimensional stability. Opaque tan color. Lower thermal expansion.	Structural aerospace parts, high-load connectors.
Ultem 2100	Con 10% de fibra de vidrio	Balanced strength and finish. Better impact resistance than 2300.	Carcasas electrónicas, soportes industriales.
Ultem 9085	Grado aeroespacial	High performance with strict Flame, Smoke, and Toxicity (FST) compliance.	Aircraft interior components, ducting.

Ultem 1000 Machining Capabilities

Capacidad	Descripción técnica	Ventaja de Jucheng
Optical Clarity Polishing	Post-machining Vapor Polishing or mechanical buffing to restore transparency to machined features.	We achieve high optical clarity for sight glasses and fluid manifolds, allowing for visual inspection of internal flows.
Stress-Free Precision Milling	Using specific tool paths and annealing cycles to prevent “crazing” or stress cracking in Ultem.	Ensures long-term dimensional stability and prevents material failure when exposed to cleaning agents or solvents.
High-Aspect Ratio Drilling	Drilling high-precision internal channels for medical fluidics without melting or cracking the brittle amber plastic.	Our Peck-drilling cycles and temperature control ensure straight, clean bores with Ra 0.8μm internal finishes.
Micro-Threading	Machining fine external and internal threads (down to M1.6) for electronic connectors.	Jucheng achieves sharp, burr-free thread profiles that maintain high dielectric integrity and secure fitment.

Fabrication Guidelines for Ultem 1000

Sensibilidad al refrigerante:
Ultem is highly sensitive to certain oils and solvents, which can cause immediate stress cracking (crazing). Consejo: We use strictly compatible water-soluble coolants or air-blast cooling to ensure material integrity.

Annealing Requirements:
Machining induces internal stress in PEI. Consejo: For parts with tight tolerances or complex geometry, we perform in-process annealing to relieve stress and prevent warping after the final cut.

Selección de herramientas:
Ultem is relatively brittle and abrasive. Consejo: We use sharp, positive-rake carbide tools with polished flutes to shear the material cleanly, preventing heat buildup and surface smearing.

Clamping Care:
Ultem can crack under localized high pressure. Consejo: We utilize vacuum tables or soft-jaws with distributed pressure to hold parts securely without inducing stress risers.

Aplicaciones principales

Aeroespacial y aviación
Electrical connectors, lighting housings, and thermal insulators requiring high flame resistance and low weight.

Dispositivos médicos (ISO 13485)
Surgical instrument handles, sterilization trays, and manifolds requiring repeated autoclaving resistance.

Electronics & Semiconductor
Burn-in sockets, high-voltage switches, and wafer handling components requiring excellent dielectric properties.

Food Processing
Fluid manifolds and scraper blades requiring FDA compliance and resistance to hot water/steam cleaning.

Propiedades

Densidad	1.27 g/cm³
Resistencia a la tracción	105 - 110 MPa
Módulo elástico	3.2 GPa
Dureza	109 Rockwell R
Temperatura de deflexión por calor	200 - 210 °C
Temperatura de servicio continuo	170 °C
Absorción de agua	0.25%
Resistencia dieléctrica	33 kV/mm
Transmisión de luz	Translucent Amber
Clasificación de inflamabilidad	UL94 V-0
Tamaño máximo de pieza	2000 x 800 x 600 mm