Consumer electronics TWS earbud housing sealing and bonding: thermal grease case study

Background

An equipment integrator / manufacturer in Consumer electronics needed to sealing and bonding on a TWS earbud housing using thermal grease.

Process challenge

Tight cycle time with frequent changeovers that squeeze setup time.

Solution

We recommended Screw Valve + Dispensing Valve, with adding regulated supply with a drum pump for continuous feed to suppress pressure ripple.

Result

• Potting void defects reduced from 4% to below 1%.
• Shot volume 4 mL with deviation within ±3%.
• Cycle time 0.9 s per dot with no stringing or dripping during continuous running.

Project facts

• Industry: Consumer electronics
• Workpiece: TWS earbud housing
• Fluid: thermal grease
• Process: sealing and bonding
• Recommended lines: Screw Valve, Dispensing Valve