Customer need
Suitable for automotive interior and exterior clips, wire harness fixing clips and brackets, hose clamps, sensor mounting bases, and small brackets and covers around the engine bay. These parts are high in volume and small in size, requiring sufficient elasticity to 'clip in without breaking' during assembly, while withstanding vibration, temperature fluctuations, and oily environments in service.
Production problem
Common pain points for automotive clips and brackets: clips are prone to brittle fracture in dry and low-temperature conditions, causing assembly line inefficiency; long-term vibration leads to loosening or fatigue cracking; high temperatures around the engine bay can deform standard nylon; resistance to oil and common automotive fluids is required; OEMs demand strict material batch consistency and supply continuity.
Modification solution
Recommended: 【Toughened PA6 Black Resin】 as the primary choice for elastic assembly parts like clips and wire harness fixing clips—toughening modification helps improve impact resistance and assembly toughness in dry and low-temperature states; for wire harness brackets and mounting bases requiring some rigidity while retaining toughness, consider 【PA6 Black 10%】 (low glass fiber content reinforcement); for bracket-type parts near the engine bay with higher heat and rigidity requirements, consider 【PA66 Black 30%】. Specific selection must be validated based on part location, temperature range, and customer standards.
Result
The tiered approach—'toughened for elastic parts, reinforced for load-bearing parts'—reduces the risk of assembly clip breakage and in-service loosening; replacing some metal brackets with nylon contributes to lightweighting; the clear material system facilitates reuse across multiple vehicle projects for customers.
How we worked
- Part Classification: Divide parts by interior, body, and engine bay periphery, clarifying temperature and stress requirements.
- Tiered Material Selection: Use toughened PA6 for clips, PA6 Black 10% for brackets, and PA66 Black 30% for high-temperature areas.
- Assembly Validation: Support trial molding and assembly testing, focusing on clip insertion/withdrawal, low-temperature toughness, and dimensional stability.
- Volume Supply: After solution confirmation, ensure stable supply with batch traceability and delivery management.
| Item | Before | After |
|---|---|---|
| Modification Direction | Toughened + Glass Fiber Reinforced Tiered | |
| Recommended Materials | Toughened PA6 Black Resin / PA6 Black 10% / PA66 Black 30% | |
| Key Focus | Assembly Toughness, Vibration Resistance, Heat Resistance | |
| Appearance | Black, suitable for automotive functional parts |
Service
Tiered material recommendations based on part location (interior, body, engine bay periphery); provide sample materials to support customer trial molding and assembly validation; assist in troubleshooting molding issues such as clip breakage, sink marks, and warpage; after validation, ensure stable bulk supply and coordinate with customer material numbering and batch management requirements.