Processing Machinery
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EVA foaming edge scrap recycling
Problem Phenomenon
Product performance declines after blending edge scrap.
Cause Analysis
Foamed edge scrap is already crosslinked and cannot be remelted for processing; crushing and blending affects the foaming uniformity of new material.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solution
①Control the blending ratio of recycled material; ②homogenize the crushing particle size; ③evaluate physical recycling and chemical recycling; ④do not use recycled material for key products.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The recycling of crosslinked foamed material is an industry challenge; ratio control and application grading are realistic practices.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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