Nylon Injection Molding
Durable, high-performance injection molded Nylon. From automotive to consumer goods, our precision molding ensures reliability and cost-effectiveness.
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Erye Offer Nylon Injection Molding Service Specific to Your Needs!
At Erye, we specialize in providing high-quality nylon injection molding services, offering precise and durable solutions for a wide range of industries. Nylon’s strength, toughness, and versatility make it an ideal material for producing complex parts and components.
- Low-volume and high-volume production
- Small to large part size
- Free & fast DFM report
- No mininum order quantities
- T1 samples as fast as 10 days
What is Nylon?
Nylon is a synthetic thermoplastic polymer, a type of polyamide, widely used in various applications due to its strength, durability, and versatility.It's known for its resistance to abrasion, chemicals, and heat, and its ability to be molded into various shapes.
The numbers in the nylon names (like 6, 6/6, 11, etc.) refer to the number of carbon atoms in the monomers that make up the polymer chain. The common types of Nylon include:
- Nylon 6 (PA6): Exhibits high moisture absorption (around 2.5-3% at saturation), impacting dimensional stability.
- Nylon 6/6 (PA66): Offers superior tensile strength (around 80-90 MPa) compared to PA6.
- Nylon 11 (PA11): Demonstrates exceptionally low moisture absorption (around 0.1-0.4% at saturation).
- Nylon 12 (PA12): Provides excellent dimensional stability with minimal water uptake (around 0.1-0.3% at saturation).
- Nylon 4/6 (PA46): This delivers high heat deflection temperature (around 290°C), suitable for high-temperature applications.
- Glass-filled Nylon: Increased tensile strength and boosted stiffness up to 70% greater than unfilled nylon.
Injection Molded Nylon Part Design Guide
When designing for nylon injection molding, it's important to consider the unique properties of nylon, such as its high strength, low friction, and thermal stability.
Item | Description |
---|---|
Wall Thickness | Maintain uniform wall thickness between 1.5mm to 3.0mm to reduce warping and stress during cooling. |
Draft Angles | Incorporate draft angles of at least 1-2 degrees to facilitate part ejection and prevent damage during mold release, as nylon shrinks onto the mold. |
Ribs and Bosses | Keep rib thickness at no more than half the wall thickness to avoid warping and stress concentration, especially for parts requiring increased rigidity. |
Tolerance | Account for 1.5% to 2.5% shrinkage during molding, to ensure the final part dimensions meet the required tolerances. |
Snap-Fit Design | Utilize snap-fit features with appropriate undercut and deflection allowances, accounting for nylon's flexibility and potential creep. |
Hole Design | Design holes with adequate spacing and diameter to prevent cracking and ensure proper functionality, considering nylon's shrinkage and potential for stress concentration. |
Glass-filled Nylon Injection Molding | Consider thicker wall sections to prevent fiber misalignment, ensuring optimal mechanical strength and preventing weak spots in the final product. |
Start Nylon Plastic Molding Project
Get high-quality Nylon injection molded parts! Contact with Erye to request a quote!
Features of Injection Molded Nylon
High Strength and Durability
Nylon's inherent toughness and abrasion resistance make it ideal for parts requiring long-term durability and resistance to wear, such as gears, bearings, and structural components.
Chemical Resistance
Nylon's resistance to many chemicals, including oils, fuels, and solvents, makes it suitable for automotive and industrial applications where exposure to these substances is common.
Temperature Resistance
Certain nylon grades, like PA46, offer high heat deflection temperatures, enabling use in elevated temperature environments found in automotive engine compartments or electrical connectors.
Flexibility and Impact Resistance:
Nylon's semi-crystalline structure provides a degree of flexibility and excellent impact resistance, especially important for snap-fit features and parts subject to mechanical stress.
Reduced Friction
Nylon's low coefficient of friction makes it suitable for bearing and wear applications, reducing the need for lubrication.
Electrical Insulation
Nylon's excellent electrical insulating properties make it useful in electrical and electronic components.
Moisture Absorption (Hygroscopicity)
Nylon's tendency to absorb moisture can lead to dimensional instability, changes in mechanical properties, and potential for hydrolysis, requiring careful drying and storage.
High Shrinkage
Nylon's relatively high shrinkage rate can make it challenging to achieve tight tolerances and consistent part dimensions, necessitating precise mold design and process control.
Sensitivity to Notches and Sharp Corners
Nylon's impact strength can be reduced by sharp corners and notches, which can act as stress concentrators, necessitating generous radii and fillets.
Application of Injection Molded Nylon
Automotive Industry
- Timing gears
- Radiator end tank caps
- Interior door handle mechanism
- Airbag component housings
Industrial
- Conveyor belt rollers
- Linear motion bushings
- Pump housings
- Valve components
- Pipe fittings
Medical Industry
- Infusion pump housings
- Dialysis machine connectors
- Medical instrument handles
- Diagnostic device housings
Aerospace Industry
- Seat track rollers
- Wire bundle clamps
- Interior panel fasteners
- Instrument panel components
- Access panel latches