2026-09-10 · 最新消息
丝杆螺母材质怎么选？斯科勒 POM 与 PEEK 螺母对比
斯科勒（SCREWTECH）滑动丝杆系列提供 POM（聚甲醛）与 PEEK（聚醚醚酮）两大类工程塑料螺母，分别适配不同工况。下面从连续工作温度、力学性能、摩擦磨
斯科勒（SCREWTECH）滑动丝杆系列提供 POM（聚甲醛）与 PEEK（聚醚醚酮）两大类工程塑料螺母，分别适配不同工况。下面从连续工作温度、力学性能、摩擦磨损与成本等维度，对两类材质共 7 种主流牌号进行横向对比，帮助工程师快速选型。
性能对比总表
下表覆盖 POM 与 PEEK 两大系列的主流工程塑料牌号，对应滑动丝杆系列可选螺母材质：
| 性能维度Performance Dimension | POM-C聚甲醛均聚 | POM-H聚甲醛共聚 | POM+PTFE含聚四氟乙烯 | 100% PEEK纯料 | PEEK-GF玻纤增强 | PEEK-CF30%碳纤增强 | PEEK-CF+G+PTFE碳纤+石墨+PTFE |
|---|---|---|---|---|---|---|---|
| 连续工作温度Continuous Operating Temperature | 80℃ | 90℃ | 85℃ | 260℃ | 280℃ | 290℃ | 285℃ |
| 短期峰值温度Short-Term Temperature Peak | 100℃ | 110℃ | 95℃ | 310℃ | 330℃ | 340℃ | 335℃ |
| 拉伸强度Tensile Strength | 62MPa | 70MPa | 55MPa | 90MPa | 170MPa | 210MPa | 180MPa |
| 弯曲模量（刚性）Flexural Modulus | 2.8GPa | 3.2GPa | 2.5GPa | 3.8GPa | 10.5GPa | 18GPa | 12GPa |
| 摩擦系数（无润滑）Friction Coefficient | 0.18 | 0.17 | 0.1 | 0.25 | 0.23 | 0.15 | 0.08 |
| 耐磨性Wear Resistance | Good, fatigue-resistant | Excellent, better creep resistance than POM-C | Excellent, outstanding self-lubrication | Good, wear-resistant | Excellent, enhanced wear resistance due to increased strength | Excellent; carbon fiber enhances wear & abrasion resistance | Ultra-excellent; composite filling enables self-lubrication + wear resistance |
| 耐腐蚀性Corrosion Resistance | Resistant to weak acids, weak alkalis and alcohols; not resistant to strong oxidants and aromatic solvents | Same as POM-C, slightly better chemical stability | Same as POM-C | Extremely high; resistant to strong acids, alkalis, high-temperature organic solvents, and salt spray | Same as 100%PEEK; chemical stability remains unchanged after reinforcement | Same as 100%PEEK | Same as 100%PEEK |
| 加工性Processability | Easy to inject mold, high molding precision | Slightly more difficult to inject mold, requires precise temperature control | Moderate injection molding difficulty; PTFE tends to precipitate | Difficult; requires specialized high-temperature and high-pressure equipment | Relatively difficult; glass fiber orientation requires mold optimization | Relatively difficult; carbon fiber tends to agglomerate, requiring high shear | Difficult; multi-components tend to disperse unevenly |
| 成本等级Cost Level | Low | Low - Medium | Medium | High | High - Very High | Very High | Very High |
| 典型工况（丝杠螺母）Typical Working Condition | Normal temperature, low load, general transmission | Normal temperature, medium load, high-precision transmission | Normal temperature, low load, oil-free lubricated transmission | High temperature, medium load, strong corrosion transmission | High temperature, high load, strong corrosion transmission | High temperature, ultra-high load, wear-resistant transmission | High temperature, high load, oil-free lubrication + strong corrosion transmission |
优 / 低 / 易劣 / 高 / 难
选型建议
常规传动、成本敏感 → 选 POM 螺母（如 POM-C / POM-H），性价比高、自润滑良好，适合一般工业场景。
高温、强耐磨、洁净环境（半导体 / 医疗器械）→ 选 PEEK 螺母（如 100% PEEK / PEEK-GF），耐温与耐磨更优。
需进一步降低摩擦 → 选含改性填料的 POM+PTFE 或 PEEK-CF+G+PTFE，摩擦系数更低。
ABOUT SCREWTECH
关于斯科勒 SCREWTECH
苏州斯科勒自动化设备有限公司（SCREWTECH）始创于 2011 年，是专注于精密直线传动领域并拥有 ISO9001 与 IATF 16949 双认证的核心技术企业，累计取得专利 60+ 项。公司聚焦微型精密传动自主创新，面向半导体、医疗器械、新能源等前沿领域，提供从核心部件到集成模组的一站式解决方案。依托微米级精密制造能力，斯科勒立足国产替代主赛道打破海外垄断，秉持“专业、诚信、高效”理念，以“精益传动，驱动未来”为使命，赋能高端制造升级。