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Modèle: Airbag System
marque: HTD
Lieu d'origine: CHINE
Positionnement du produit :
La cartouche de gonflage HTD est le principal composant structurel et de confinement haute pression d'un système d'airbag automobile. Agissant comme une « barrière de sécurité » du module airbag, il doit résister à la chaleur intense et aux impulsions haute pression générées par le gonfleur en quelques millisecondes, tout en garantissant que la force explosive est canalisée de manière précise et contrôlable dans le coussin gonflable. Utilisant des alliages/plastiques techniques à haute résistance et des processus de moulage/formage d'inserts de précision, il atteint l'équilibre parfait entre intégrité structurelle, étanchéité fiable et libération précise de la pression dans des conditions extrêmes, ce qui en fait un élément de sécurité essentiel pour protéger la vie des occupants.
Paramètres de performance clés de l'estampage :
| Category | Specific Parameters | Test Standard |
| Primary Material | High-strength aluminum alloy (e.g., A356), Stainless steel, Reinforced engineering plastic (PPS/PA66-GF50) | Customer-specified / Material certification standard |
| Pressure Resistance | Static burst pressure ≥ 35 MPa; Dynamic impact resistance ≥ 150% of standard requirement | ISO 12097 / Customer DV testing |
| Sealing Grade | Helium leak rate ≤ 1×10⁻⁷ mbar·L/s, meeting lifetime sealing requirements | Enterprise standard / Helium mass spectrometry leak test |
| Operating Temperature | -40℃ ~ +110℃ (long-term), Peak temperature resistance ≥ 170℃ (short-term) | ISO 16750 |
| Structural Design | Integrated mounting flange and locating features, with internal metal reinforcement inserts, fool-proof design | 3D dimensional report / Fixture validation |
| Process Characteristics | Precision die casting/injection molding, internal cavity surface roughness Ra ≤ 1.6μm, Cleanliness level ≤ mg | VDA 19 / ISO 16232 |
| Safety Compliance | Complies with IMDS declaration requirements, meets OEM material and process specifications | Supports PPAP submission |



| Step | Core Process | Key Technical Points | Output Standard |
| 1 | Design & Simulation Validation | Static/Dynamic CAE, Mold flow & Tolerance analysis | Simulation report approved, design frozen |
| 2 | Precision Forming | HPDC/Injection molding, precise mold temp. control, vacuum degassing | Casting/molding free of cold shuts/porosity, dimensions OK |
| 3 | Precision Machining & Cleaning | CNC machining of critical features, multi-stage ultrasonic cleaning + vacuum drying | Dimensional CPK≥1.67, reliable connection points |
| 4 | Welding & Sealing Assembly | Laser welding (seam) or precision press-fitting (seal) | 100% helium leak test pass, weld NDT pass |
| 5 | Full Performance Test & Traceability | Burst pressure test, seal test, 100% dimensional check, cleanliness verification | 100% tested, full process traceability per part |
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