Processing Machinery
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PSU Food Processing Parts
Problem Phenomenon
【Problem Phenomenon】Transparent parts of food processing equipment need heat resistance and wash resistance, material selection is limited
Cause Analysis
PSU/PESU resist detergents, hot water and steam and are transparent, meeting food contact requirements; microwave containers and cooking equipment parts are mature applications; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
Choose PSU/PESU food-grade grades for transparent heat-resistant parts of food machinery; verify cleaning agent resistance and thermal cycling; select materials according to FDA food contact standards; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
PSU food grade is transparent, heat-resistant and wash-resistant, a mature solution for processing equipment parts; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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