Extrusion & Post
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ABS surface hardness improvement
Problem Phenomenon
[Problem phenomenon] ABS surface easily scratched, higher hardness needed
Cause Analysis
ABS surface hardness is medium; improvement approaches: high-hardness grades, surface coating (UV/PU), compounding with PMMA; select the solution according to wear resistance requirements; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
Solution
Wear-resistant parts select high-hardness grade or coating; PMMA composite high gloss; scratch verification; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
ABS fears scratching, choose among high-hardness grade, coating and composite; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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