Limitations: Slight creep may occur under long-term high loads.
Severe creep: Irreversible deformation occurs under sustained force at room temperature, unsuitable for high-precision positioning scenarios.
Retains POM's high strength: Can be used as a load-bearing structural component (e.g., gear shaft, slider body);
Suppresses PTFE creep: POM's rigid skeleton restricts PTFE molecular chain slippage, resulting in significantly better creep resistance than pure PTFE after composite;
Optimized comprehensive mechanical properties: Possesses POM's impact resistance (not easily broken), while PTFE improves POM's surface wear under dry friction.
3. Processing Performance: Easier to mold than PTFE, more suitable for complex scenarios than POM
Processing Characteristics of Pure POM:
Easy to process: Low melting point (165-175℃), can be molded using conventional processes such as turning, milling, drilling, and injection molding, suitable for complex-shaped parts;
Limitations: Easily melts at the edges due to frictional heat during cutting, and insufficient wear resistance limits its application in high-friction scenarios.
Processing Challenges of Pure PTFE:
Extremely high melt viscosity (more than 100 times that of POM), cannot be injection molded for complex parts, can only be molded or sintered;
Poor machinability: Low hardness, prone to material sticking to the cutting tool, producing burrs, low processing efficiency, and difficulty in ensuring accuracy.
Improvements from POM+PTFE composites: Machinability approaching that of POM: Retaining POM's low melting point and easy-to-cut properties, it can be machined using conventional machine tools (turning, milling, drilling), and even supports simple injection molding (process parameters need adjustment); Improved cutting experience: PTFE's lubricity reduces friction between the tool and the material, lowering the risk of tool sticking; Adaptability to more scenarios: It can process simple bars/plates, and can also be machined into complex wear-resistant parts such as gears and bushings.
4. Application Scenarios Adaptability: Breaking Through the "Working Condition Forbidden Zones" of Single Materials
Pure POM's Applicable Boundaries: Suitable for low to medium load scenarios with lubrication (e.g., ordinary gears, bearing housings), but prone to failure under unlubricated, high-friction, and high-load conditions (e.g., high-speed sliders, heavy-duty guideways).
Pure PTFE's Applicable Boundaries: Suitable for extreme scenarios with ultra-low temperatures, strong corrosion, and ultra-low friction (e.g., chemical sealing gaskets, aerospace insulation components), but due to its low strength, it cannot be used in load-bearing or transmission structures.
Improvements of POM+PTFE Composite: Expanding unlubricated, high-load scenarios: such as food packaging machine guideways (dry friction + load-bearing); Balancing corrosion resistance and strength: In chemical equipment, it is both acid and alkali resistant (PTFE characteristics) and can serve as a support component to bear the weight of pipelines (POM characteristics); Reducing maintenance costs: In electronic and electrical appliances, it can operate for a long time without regular lubrication, reducing downtime for maintenance compared to pure POM.
5. Cost-Effectiveness: Significantly Higher Cost-Effectiveness Than Pure PTFE
Pure PTFE is expensive due to the high cost of raw materials and the complexity of its manufacturing process, which requires molding and sintering.
POM+PTFE Composite Reduces Cost: Using POM as the matrix and adding only a small amount of PTFE, the total cost is lower than that of pure PTFE, while its performance far surpasses that of pure POM (no lubrication required, more wear-resistant), resulting in a significant cost-effectiveness advantage.
The "1+1>2" effect of composite materials
| Item |
Pure POM |
Pure PTFE |
POM+PTFE Composite Rod |
Core Improvement Points |
| Coefficient of friction |
High, requires lubrication |
Extremely low, self-lubricating |
Low friction + self-lubricating |
Balancing low friction and load-bearing capacity, reducing reliance on lubrication. |
| Wear Resistance |
General (easily wears with dry friction) |
Self-lubricating but with low strength and prone to wear |
3-10 times higher than pure POM |
Significantly extended lifespan under high loads without lubrication |
| Tensile strength |
high |
very low |
retains POM strength |
Compensates for PTFE strength deficiencies; can be used for structural components. |
| Creep Resistance |
Good |
Very Poor (Easily deformable) |
Close to POM (Inhibits PTFE creep) |
Suitable for high-precision positioning scenarios |
| Machining Difficulty |
Easy (Can be machined, milled, drilled, or injection molded) |
Difficult (Mainly molding and sintering, prone to tool sticking during cutting) |
Easy (Similar to POM, smoother cutting) |
Easier to mold than PTFE, more suitable for wear-resistant applications than POM |
| Cost |
Medium |
High (expensive raw materials + processing) |
Moderately low (lower than pure PTFE) |
Significantly higher cost-performance ratio than pure PTFE |
In short, PTFE POM Rod solve the contradiction of single materials being either "strong enough but with high friction, or with low friction but poor strength" by combining the "strength skeleton of POM with the lubrication coating of PTFE", making them an "all-rounder" for unlubricated wear-resistant scenarios.
AHD PTFE Mix Polyacetal Rod
Main Application Areas
Machinery Industry: Bearings, gears, sliders, bushings, guide rails, piston rings, seals (replacing some metals or pure plastics).
Automotive Industry: Door hinges, wiper brackets, seat adjustment mechanisms, fuel pump parts (requiring oil resistance and low friction).
Electronics and Electrical Appliances: Precision gears (e.g., printers/copiers), switch components, insulating gaskets (utilizing electrical insulation).
Food/Medical Machinery: Food conveyor rails, packaging machine components.
Chemical Equipment: Corrosion-resistant valve linings, pipe supports (resistant to acids, alkalis, and solvents).
Application Methods: Usually purchased directly in bar form, or cut and machined into the required parts (e.g., round shafts, plates, irregular shapes). Further injection molding into complex structures is also possible (requiring specialized equipment).
AHD POM Blended PTFE Round Bar
