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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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11636 soru
Q
Poor EEA weather resistance
A
Poor weather resistance is caused by photo-oxidation; UV+HALS+antioxidant triple protection is key
Material Analysis EEAweather resistanceUV absorberHALSphoto-oxidation
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Q
EEA extruded pipe ovality out of tolerance
A
Ovality is caused by uneven cooling and clamping; annular cooling and uniform haul-off are the key
Extrusion & Post EEA pipeovalityannular coolingvacuum sizinguniform haul-off
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Q
Large current fluctuation of EEA extruder
A
Current fluctuation is caused by unstable feeding, poor temperature control and unsuitable screw; system optimization is the key
Extrusion & Post EEA extrusioncurrent fluctuationtemperature control accuracyscrew designfeeding stability
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Q
EEA extruded film has gel particles
A
Gel particles are caused by insufficient melting; increasing temperature and mixing is the key
Extrusion & Post EEA filmgel particlesmelting temperaturemixing sectionhigh molecular weight components
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Q
EEA extruded film has transverse ripples
A
Transverse ripples are caused by haul-off vibration and roller eccentricity; equipment overhaul and stable control are the key
Extrusion & Post EEA filmtransverse rippleshaul-off vibrationcooling roller eccentricitypressure stabilizing device
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Q
Frequent screen clogging in EEA extrusion
A
Screen clogging is caused by impurities and improper configuration; raw material control and stepped screens are the key
Extrusion & Post EEA extrusionscreen clogginggel particlesstepped screensautomatic screen change
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Q
Silver streaks caused by moisture in EEA processing
A
Silver streaks are caused by moisture vaporization and stretching; drying and venting are the main countermeasures
Material Drying EEA injectionsilver streaksmoisture dryingventingback pressure
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Q
EEA injection cold slug marks
A
Cold slug marks are caused by solidified residual material in the nozzle; increasing nozzle temperature and cold slug well design are the key
Injection Molding EEA injectioncold slug marksnozzle temperaturecold slug wellinjection pressure
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Q
EEA extruded film winding wrinkles
A
Film wrinkling is caused by tension fluctuation and thickness unevenness; automatic tension control and homogenization are the key
Extrusion & Post EEA filmwinding wrinklestension controlthickness uniformityguide roller parallelism
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Q
EEA injection flow marks
A
Flow marks are caused by unstable injection front and rapid cooling; multi-stage injection and high mold temperature are the key
Injection Molding EEA injectionflow marksinjection speedmold temperaturegate area
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Kategoriler

Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382
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