Consumer electronics phone mid-frame part dispensing: UV-curing structural adhesive case study

Background

An equipment integrator / manufacturer in Consumer electronics needed to dispensing on a phone mid-frame part using UV-curing structural adhesive.

Process challenge

Very small shot volume with high repeatability demands, plus overflow and stringing risk.

Solution

We recommended Screw Valve + Dispensing Valve, with replacing time-pressure control with a positive-displacement screw valve to meter by volume.

Result

• Volume repeatability improved from ±5% to within ±2%.
• Shot volume 0.008 mL with deviation within ±3%.
• Cycle time 0.3 s per dot with no stringing or dripping during continuous running.

Project facts

• Industry: Consumer electronics
• Workpiece: phone mid-frame part
• Fluid: UV-curing structural adhesive
• Process: dispensing
• Recommended lines: Screw Valve, Dispensing Valve

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