Comparez le PETG et l'ABS pour les pièces plastiques HVAC : résistance à la chaleur, résistance chimique, gauchissement, usinabilité et coût. Choisissez la bonne résine...
Peinturabilité / Adhérence.
Read More
Collection de composants HVAC en plastique gris, comprenant des conduits, des coudes et des connecteurs, disposés sur un fond neutre.
Key Takeaways Plastics have a loss coefficient 5–100x higher than steel and aluminum, meaning they dissipate vibration energy as heat instead of amplifying it as sound. Two-Shot (2K) molding bonds rigid structural nylon to soft TPE isolation layers in a single cycle, eliminating the micro-rattle caused by separate rubber grommets. Adding 20–40% talc filler to […]
Read More
Climatiseur portable avec tuyau d'évacuation flexible installé dans une fenêtre, à côté d'une table d'appoint avec une lampe et une plante dans une pièce élégante.
Key Takeaways Smart HVAC sensor housings require tolerances below 0.05 mm to prevent touchscreen cracking and antenna detuning. PC/ABS blends dominate smart thermostat housings because they combine 65 kJ/m2 impact strength with a heat deflection temperature of 110 degrees Celsius. Conformal cooling channels reduce cycle time by 25-35% and cut warpage by up to 60% […]
Read More
1.27 g/cm³
Key Takeaways ABS offers higher heat resistance (HDT 88–103 °C) vs PETG (65–80 °C), making it better for components near heat sources. PETG outperforms ABS in chemical resistance to acids, oils, and cleaning agents used in HVAC maintenance. ABS has lower mold shrinkage variance and better dimensional stability for tight-tolerance HVAC housings. PETG is naturally […]
Read More
Principaux Points Le nylon chargé de verre (PA66-GF) remplace le métal dans les systèmes CVC avec une réduction de poids de 30–40% tout en conservant une résistance équivalente. Une teneur en fibres de verre de 30%...
Key Takeaways Glass-filled nylon (PA66-GF) replaces metal in HVAC at 30–40% weight savings with equivalent strength. 30% glass fiber content hits the sweet spot: tensile strength 180–200 MPa, heat deflection 220°C+. Weld line placement is the #1 failure point — position gates to push weld lines away from stress zones. At HVACore, we run PA66-GF […]
Read More
Le Diagnostic :
Key Takeaways Boss wall thickness must be 2.5x to 3.0x the insert outer diameter to prevent hoop stress cracking under repeated assembly cycles. Pre-heating brass inserts to 80–100°C before molding reduces delayed stress cracking failures by eliminating the 200°C+ thermal delta at the metal-plastic interface. Diamond knurl patterns provide 30–40% higher torque retention than straight […]
Read More