High-frequency melting machines, relying on high-frequency electromagnetic field technology, achieve rapid material welding and synchronous cutting through molecular frictional heat generation, demonstrating significant advantages in the manufacturing of automotive interiors. Its core compatible materials and typical application scenarios are as follows:
1. Core Adaptive Materials
PVC (polyvinyl chloride)
Features: strong molecular polarity response under high-frequency heating, high welding strength, and smooth cutting edges without burrs.
Applications:
Door panel sealing strips: welding PVC sealing strips and door interior panels to ensure dustproof and waterproof performance.
Sun visor covering: welding PVC fabric and sun visor frame to improve surface flatness and durability.
Carpet fixed edge: cutting and welding PVC edge strips to prevent carpet warping.
TPU (thermoplastic polyurethane)
Features: excellent elasticity, strong wear resistance, excellent sealing after welding, suitable for dynamic load scenarios.
Applications:
Seat ventilation bag: welding TPU film and mesh ventilation layer to form an air circulation channel to improve riding comfort.
Airbag door cover: welding TPU coated fabric to ensure no risk of tearing when the airbag is deployed.
Steering wheel cover: embossing and cutting are integrated to improve grip and aesthetics.
EVA (ethylene-vinyl acetate copolymer)
Features: soft and shockproof, no pinholes after welding, suitable for sealing and buffering needs.
Application:
In-car sound insulation cotton: welding EVA foam and aluminum foil layer to improve sound insulation effect and prevent material shedding.
Ceiling lining: welding EVA buffer layer and fabric fabric to reduce the risk of head collision.
Trunk mat: cutting and sealing the edge of EVA mat to prevent liquid penetration.
PU (polyurethane)
Features: high surface flatness, clear embossing effect, suitable for high-end interior decoration.
Application:
Dashboard surface: welding PU imitation leather and ABS substrate to enhance touch and visual texture.
Seat side wings: embossed PU fabric and sponge composite layer to enhance support and aesthetics.
Door panel trim: cutting PU covering parts to match complex curved surface design.
PVC mixed materials
Features: polarity is adjusted by additives, compatible with high-frequency heating process.
Application:
Artificial leather seats: welding PVC/PU composite artificial leather to reduce production costs.
Carpet backing layer: welding PVC coating and non-woven fabric to improve the anti-peeling strength of carpet.
2. Typical application scenarios
Seat system
Ventilation function realization: welding TPU ventilation bag and seat frame to ensure uniform air circulation and prevent stuffiness.
Safety performance improvement: welding airbag door cover and seat fabric to ensure the reliability of instant deployment of airbag.
Comfort optimization: embossed PU seat surface to improve touch and anti-slip performance.
Door panel and ceiling
Sealing and sound insulation: welding PVC sealing strip and door panel lining to reduce wind noise and road noise.
Decorative parts fixing: welding PU decorative strip and door panel substrate to achieve seamless splicing.
Ceiling buffer layer: composite EVA foam and fabric to improve head protection performance.
Carpet and trunk
Edge sealing: cutting and welding PVC edge strips to prevent carpet edge wear.
Anti-slip design: welding EVA anti-slip particle layer to improve the stability of trunk mat.
Liquid protection: welding TPU coated carpet to prevent beverages or rain and snow from penetrating.
Instrument panel and center console
Surface covering: PU imitation leather and plastic substrate are welded to hide the seams and enhance the texture.
Storage compartment sealing: EVA foam pads are welded to the box body to prevent items from sliding and making noises.
Key decorative ring: PU rings are cut to match the precise key layout.