Ultime Novità

Resta aggiornato con le novità di Linqi Ultrasonic, le tendenze del settore e gli approfondimenti tecnici

100 articles

2026-09-10

PS and HIPS: Where the Window Sits on a Low-Cost Resin

PS welds easily with a wide window but is brittle; HIPS adds a rubber phase, gaining toughness while demanding more amplitude. The traps are not fusion but stress cracking and surface marking.

Long and Short Glass Fibre: Same 30%, Different Result

Technical

2026-09-10

Long and Short Glass Fibre: Same 30%, Different Result

Same loading, different fibre length, and the resin available at the interface, the attenuation and the horn wear all change. A purchasing spec that gives only a percentage is not enough.

Technical

2026-09-10

PA6 and PA66: Where the Welding Differs

Both are nylon, but PA66 melts higher, over a narrower range and crystallises faster, so its process window is tighter than PA6. The two also do not weld to each other, so unify the grade at the design stage.

Welding PPS: Heat Resistant Does Not Mean Easy to Weld

Technical

2026-09-10

Welding PPS: Heat Resistant Does Not Mean Easy to Weld

PPS melts high, over a narrow range, and is brittle; it is almost always glass filled. The question is not whether it welds but how narrow the window gets, and how joint design and process monitoring hold it steady.

TPU and Soft Parts: Why Softness Makes Welding Hard

Technical

2026-09-10

TPU and Soft Parts: Why Softness Makes Welding Hard

Soft materials absorb the vibration. TPU has high internal damping and a low modulus, so the wave attenuates fast and the part deforms under force. The answers are near field, a larger contact area, and a fixture that supports it.

Welding Appliance Housings: Three Requirements at Once

Industry

2026-09-09

Welding Appliance Housings: Three Requirements at Once

Appliance housings are large plastic parts with high appearance standards, accumulated tolerance and output pressure. What each constraint costs, and where the trade-offs are.

Ultrasonic Insertion and Staking: Joining Without Compatibility

Technical

2026-09-09

Ultrasonic Insertion and Staking: Joining Without Compatibility

Beyond welding, the same equipment performs insertion, pressing metal inserts into plastic, and staking, melting a plastic boss to capture another part. Neither needs compatibility.

Lamps and Sealed Parts: Leak-Tight Is Not the Same as Strong

Industry

2026-09-09

Lamps and Sealed Parts: Leak-Tight Is Not the Same as Strong

Sealed parts are judged on leakage, and a joint strong enough to pass a pull test may still leak. How sealing work differs from structural welding.

Ultrasonic Rotary Welding of Nonwovens: Pattern Wheel, Speed and Force

Technical

2026-09-09

Ultrasonic Rotary Welding of Nonwovens: Pattern Wheel, Speed and Force

Masks, wipes, hygiene products and filter bags run continuous rotary ultrasonic welding. Pattern wheel, line speed and force constrain each other.

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