POM-DuPont Delrin 500P
정밀 기어 및 슬라이딩 부품에서 최대의 기계적 피로 저항과 금속과 유사한 강성을 달성하려면 Delrin USA(구 DuPont)의 Delrin 500P가 글로벌 호모폴리머 POM의 기준입니다. 밀도 1.42g/cm³, 중간 용융 유속 15g/10min을 특징으로 하는 이 고결정성 아세탈 폴리머는 일반적인 아세탈 코폴리머보다 훨씬 높은 인장 강도와 강성을 제공합니다. ISO 9001 및 IATF 16949 인증 프레임워크에서 운영되는 주청 프리시전은 Delrin 500P의 고정밀 성형을 전문으로 합니다. 35대 이상의 고급 사출 프레스와 5축 금형을 통해 높은 수축률(1.8%-2.2%)을 마스터하여 Zeiss CMM으로 검증된 무결점, 무플래시 기어를 제공합니다.
Delrin 500P Homopolymer Mechanical & Creep Resilience
Delrin® 500P NC010 is a medium-viscosity acetal homopolymer. Due to its superior high-crystallinity matrix, it provides enhanced mechanical strength, fatigue resistance, and creep modulus over standard copolymer acetals:
| 기계적 특성 | Delrin 500P Typical Value | Homopolymer (POM-H) Engineering Edge |
|---|---|---|
| 인장 강성 | Tensile Modulus 3100 MPa / Yield 71 MPa | Exhibits roughly 15% to 20% higher tensile yield strength and flex modulus than acetal copolymers, allowing for thinner, lighter, and more rigid wall designs. |
| Long-Term Creep | Tensile Creep Modulus (1000h) 1600 MPa | Demonstrates exceptional resistibility to structural deformation and thread loosening under continuous mechanical loads. |
| Dynamic Fatigue | Unmatched Fatigue Cycle Resistance | Highly resistant to cyclic loading, preventing structural fatigue cracks in continuous-running gearboxes and belt tensioners. |
Frictional and Structural Molding Adaptability for Delrin 500P
With intermediate melt viscosity and inherent slip additives, Delrin 500P flows uniformly to secure high-tolerance functional parts:
| 성형 기술 | 공정 호환성 및 운영 세부 사항 |
|---|---|
| Precision Dynamic Gears | Excellent. The primary process for Delrin 500P. Ideal for precision spur gears, planetary gears, worm drives, and dynamic cam structures requiring high fatigue life. |
| Low-Friction Slide Bearings | Excellent. Highly suitable for sliding bushings, structural pulleys, dynamic conveyer rollers, and linear slide guides running without lubrication. |
| Fast-Cycling Snap-Fit Clips | Excellent. High elastic recovery and yield strain allow molding of heavy-duty safety seatbelt restraint clips, industrial fasteners, and automotive cabin clips. |
POM-DuPont Delrin 500P Mold Engineering Matrix
Molding an acetal homopolymer like Delrin 500P requires strict thermal stability parameters and advanced mold outgassing solutions to protect tooling and avoid visual splay:
S136 Hardened Steel & Formaldehyde Venting
Acetal homopolymers release corrosive formaldehyde gas when overheated (>230°C) or held too long in the melt barrel. To protect tool face integrity, Jucheng’s tooling division uses hardened, corrosion-resistant S136 stainless steel molds and machines deep venting slots (0.020mm) on parting lines to prevent diesel burn marks.
Managing High Crystalline Shrinkage
Delrin 500P exhibits high volumetric shrinkage (1.80% to 2.20%) due to its high crystalline nucleation rate. Our engineers conduct Moldflow analysis during DFM to balance gate designs and pack cycles, preventing voids and sink marks on thick structural ribs.
Oil-Heated Mold Temperature Controls
To optimize crystallinity and surface gloss, we keep mold temperatures at 80°C to 120°C (176°F to 248°F) using pressurized temperature controllers. Low mold temperatures prevent the crystalline phase from forming correctly, resulting in part warpage and dimensional instability over time.
Key Application Fields for POM-DuPont Delrin 500P
- Automotive Mechanisms (IATF 16949 Certified): Door latch gears, window regulator sliders, seatbelt restraint mechanisms, windshield wiper pivots, and fuel level sender modules.
- Precision Consumer & Industrial Machinery: Office printer gear trains, heavy-duty logistics conveyor rollers, sliding zipper pullers, water mixer valves, and heavy-duty snap fasteners.
- Medical Drug Delivery Systems (ISO 13485 Compliant): Dry-powder inhaler internal gears, insulin pen sliding racks, surgical instrument sliding blocks, and dosing mechanisms (non-implantable).
속성
| 밀도 | 1.42 g/cm³ |
| 용융 질량 유량(MFR)(190°C/2.16kg) | 15 g/10 min |
| 인장 탄성률 | 3,100 MPa |
| 항복 인장 응력 | 71 MPa |
| 항복 시 인장 변형률 | 17 % |
| 공칭 파단 시 변형률 | 30 % |
| 굴곡 탄성률 | 2,900 MPa |
| Flexural Stress (@ 3.5% strain) | 80 MPa |
| 노치 샤르피 충격 강도 (23°C) | 9 kJ/m² |
| 용융 온도 | 178 °C |
| 비캣 연화점 (B/50) | 150 °C |
| 열변형 온도 (HDT @ 1.80 MPa) | 112 °C |
| 선형 수축률 | 1.80 - 2.20 % |
| 최대 부품 크기 | 1000 x 800 mm |
| 최소 부품 크기 (마이크로 기어 한계) | 0.5 x 0.5 mm |