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LED UV Curing Process Frequently Asked Questions

FAQ customized uv led curing systemsUV curing spot lightUV LED Curing OvenUV LED curing systemsUV LED Spot Curing Light144924

In the application of UV LED curing light sources, we often encounter technical challenges, including curing defects, bubbles, and color distortion. This article will explore how to resolve problems encountered during use by analyzing their causes and proposing solutions.

uv led spot curing

1. Discoloration occurs after UV curing.
Root Cause Analysis:

1. Overcrowded stacking hinders adequate ventilation

2. Localized overheating impairs curing effectiveness

3. Presence of colored contaminants within the oven

Solutions:

1. Optimize stacking methods to ensure proper airflow

2. Implement temperature distribution monitoring to prevent localized overheating

3. Install purification equipment to prevent colored contamination

2. Bubble issues occurring during the curing process

Cause Analysis:

1. Internal bubbles: Uneven adhesive injection.

2. Support bubbles: Excessive curing temperature causing aggressive curing.

3. Adhesive cracking/blistering: Incomplete curing, expired use of AB adhesive.

4. Surface bubbles: Difficulty in degassing epoxy adhesive or improper user operation.

Solutions:

1. Implement automated injection technology to ensure uniform distribution.

2. Employ gradient curing to reduce curing intensity.

3. Ensure complete curing and limit the pot life of the two-component adhesive.

4. Optimize degassing processes to enhance operational efficiency.

3. Yellowing of the adhesive after UV curing

Cause Analysis:

1. High temperatures or prolonged baking

2. Improper adhesive mixing ratios leading to yellowing

Solutions:

1. Implement temperature monitoring to ensure curing within safe parameters

2. Optimize adhesive mixing ratios to prevent excessive components causing issues

3. For large lamp heads, adopt a temperature gradient curing mode

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