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How to Detect Hot Spot in Powder Coating Curing Oven
Hot spots inside curing oven create over-baked powder coating, leading to yellowing and brittleness on finished parts.
Where Hot Spots Come From
• Blocked hot air circulation outlets
• Local overheating from damaged heating elements
• Poor internal air mixing in drying tunnel
• Troubleshooting Steps
1. Use multi-point temperature recorder to scan oven temperature field
2. Clean blocked air outlets and replace broken heating parts
3. Adjust circulating fan speed to balance internal heat
Field Case
A wheel parts factory solved coating yellowing after hot spot elimination.
FAQ
Q: What temperature damage will hot spot bring?A: Overheating makes powder coating turn yellow, lose impact resistance.We design uniform-temperature curing tunnel for powder coating turnkey projects.
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