Kev Kawm Txog Kev Nyab Xeeb Thiab Kev Siv Thaum Yeej Tsis Muaj Nyob

Xam kom meej tias kev ruaj khov ruaj ntseg, cov saib xyaw, thiab cov system sib koom yog tsim nyog rau kev nyab xeeb ntawm chav siv

Thaum pib txhua lub sijhawm, yuav tsum soj ntsuam kev nyab xeeb ntawm qhov extruder muaj ib lub screw yog qhov kev ua tib neeg tshaj txaing ntau hauv tsev hlis. Cov neeg siv yuav tsum nyem cov emergency stop siv duab fia (duab nyiaj) kom paub tias nws tseem ua haujlwm zoo. Yuav tsum soj ntsuam cov saib xyaw me me kuj li—nws yuav tsum nyob ncig qhov chaw uas muaj qhov rooj cua txias thiab yuav tsum nyob raug rau qhov chaw uas tus neeg tuaj yeem pheej nyer. Ceev kom nyob rau cov interlock system kuj li. Cov cuab yeej no tshem tawm lwm tus neeg ntawm qhov chaw nyab xeeb thaum chav siv tau npaj siv, vim tias qhov no yuav tseem tseem ceeb dua thaum siv rau kev tsim kho thawj zaug uas qhov kuab khaum hla tshaj tawm hauv lub barrel. Ib qhov kev soj ntsuam me me ua ua theem pib feem ntau tuaj yeem pom cov teeb meem ua ntej thaum twg muaj neeg mob.

Tshawb xyuas kev sib npaug ntawm cov neeg siv thiab nyeem cov luv luv ntawm kev saib xyuas

Qhov kev sib txuas tshwm sim kom muaj kev raug rau hauv txhua lub sijhawm. Sau cov ntsiav tsis tau nyob rau hauv cov ntaub ntawv los ntawm kev kho tshuab, kev hloov pauv kub, lossis cov teeb meem tshuab tsis tau daws. Kev sau tseg cov ntsiav tsis tau nyob rau hauv kev nruj thiab kev sau tseg cov ntsiav tsis tau nyob rau hauv kev sau tseg cov ntsiav tsis tau yuav pab kom pom zoo dua thiab kom tsawg qhov kev puas tsuaj.

Tshawb xyuas tus tshuab nruj ib leeg los ntawm kev tshawb xyuas saum npoo

Tshawb xyuas npoo ntawm chaw nruj, tshuab ntxuav kub, thiab tshuab tso tsho los ntawm kev xeev, kev phom sij, lossis kev cuam tshwv ntawm dej nruj. Tshawb xyuas chaw pib nruj los ntawm kev tshuav tsis tau thiab xyuas kom meej tias chaw nruj tsis muaj dej ntag. Kev pom cov dej ntxuav kub lossis cov nruj tsis raug yuav pab kom tsis tas nqis tshwj xeeb hauv kev tsim kho tshuab nruj kub.

Kev tshawb xyuas tshuab ntxuav kub: Cov thermocouples thiab kev coov kub

Xyuas kom meej tias tshuab ntxuav kub thiab cov thermocouples ua haujlwm txaus siab

Yog xav tau cov lus teb tseeb meej, yuav tsum muaj kev lag luag zoo. Cov cuab yeej sib txawv thiab cov K-xov tooj no yuav tsum tau suv lawv txhua pej qaum xyoo kom nyob hauv ±1°C rauj ntej thaum tsim cov thermal break strips. Muaj qhov chaw pib tsim khoom los ntawm 2024 thiab pom tias thaum tag nrho yuav tsum raug lag luag zoo, yuav muaj neeg lossis 18% khoom tsuas yog siv tsis tau vim tias cov teeb liab nyob deb ntswj sib npaug hauv txoj kev tsim kho. Rau tus neeg twj tsim khoom no, yuav raug siab tias yuav tsum tau siv ib qhov infrared thermometer thaum pib thiab suv tsheb rau ib co pib ntau tshaj plaws los ntawm feed throat mus rau die adapter. Qhov suv no tuaj yeem pom cov teeb meem ua ntej thaum tsis muaj teeb meem loj dua.

Suv txhua qhov chaw ntawm cov caij nyoog hluav taws xob thiab pom qhov sib txawv

Siv PLC interfaces nyob rau hauv kev tshawb xyuas txhua teev ntawm qhov chaw ntxuav taws. Yog hnov qab taws tshaj 2.5°C los ntawm qhov caij no nyob rau hauv kev tshawb xyuas tshiab tshiab, qhov no tuaj yeem tshwm sim los ntawm qhov insulation pom kev phom sij, qhov heater band ploj lossis PID loop tsis muaj zog. Qhov chaw tshawb xyuas nyob rau hauv yam ntxwv siv 0.1°C tuaj yeem pab cov neeg tshawb xyuas pom cov teeb meem uas tab tom tshwm ua ntej thaum lawv tshwm sim rau hauv polymer viscosity.

Siv kev kho kom raug dua thaum muaj kev sib txawv hauv teperatures

Thaum qhov sib txawv ntawm qhov chaw tshwm tshaj 3°C:

• Ceev kom roj tawm rau cov cuab yeej sib txawv
• Ntxuav cov thermocouple junctions nrog brass wire brushes
• Tshawb dua nrog NIST-traceable calibration instruments

Yog tseem muaj kev sib txawv, yuav tsum tau tshawb xyuas tag nrho qhov kev tshawb xyuas thermal, suav nrog SSR (Solid-State Relay) kev ua haujlwm thiab kev tshawb xyuas wiring insulation. Sau tag nrho qhov kev hloov pauv rau hauv cov lej ntiag tug nrog sijhawm thiab sauv ntawm tus neeg tshawb xyuas.

Kev tshawb xyuas Motor thiab Mechanical Performance

Kev siv cov kauj ruam tsis tshaib nrog rau kev them nyiaj yuav tsum tau muab kom meej meej txog cov cuab yeej siv hluas thiab kev them nyiaj. Nyob rau hauv no yog qhov tseem ceeb uas yuav tsum tau xyuas kom ua haujlwm zoo tshaj plaws:

Xyuas tus kwj tsoom, tus voltage, thiab tus load nyiaj hauv kev siv

Xyuas cov ntaub ntawv nyiaj hauv tus kwj tsoom txhua 30 feeb los ntawm kev siv cov meter digital lossis cov system tswj siv. Yog tias tus current loj dua 10% ntawm qhov tshaj tawm yuav tsum tau saib seb puas muaj qhov tsis raug hauv kev them vaj huav thiab roj tshuab. Ib qhov kev suav los ntawm North American hauv 2023 pom tias kev xyuas tus load nyiaj nyob zej zog tuaj yeem txo kev tsis tuaj ncig ntau npaum li 18% hauv cov system extrusion.

Xyuas tus bearing temperature, kev sib txawv, thiab kev sov hlau tsis raug kom pom qhov chaw ploj tawm

Cov thermometer infrared thiab vibration pens pab pom qhov bearing siv ntau ua ntej ploj. Tsis pub tso temperature ntawm bearing ntau dua 70°C (158°F) thiab kev sib txawv tsis pub ntau dua 4.5 mm/s RMS. Cov kau kab hlau sov tsis raug feem ntau yuav tshwm sim ua ntej lub lubrication ploj tawm npaum 48–72 teev.

Siv Kev Pab Pom Lossis Cov Sensor Siv Hlau Los Xyan Koj Qhov Kev Sib Thoob ntawm Chav

Cov analyzer sib thoob portable (<2% kev plo tswg hli) muab tsoom tes ntaub ntawv txog qhov tsis muaj zog ntawm lub screw shaft. Soj ntau tshaj li ISO 10816-3 standards rau cov chav siv roj teeb meem. Cov kev sib thoob ntau dua (1,200–2,000 Hz) feem ntau txhais tau tias tsis raug tshaj tawm nyob rau hwm couplings ntawm motor.

Xyan Cov Khoom Siv Gearbox thiab Drive Rau Kev Raug Tshaj Tawm thiab Kev Tshua Siab

Xyaum xyuas lub oil level ntawm gearbox thiab kev ceev ntawm drive belt nyob rau hwm lub sijhawm thau los. Cov khoom siv laser xyan kom motor thiab gearbox shaft parallelism nyob hauv 0.05 mm tolerance. Kev siv thermal imaging nyob thaum startup yuav pom qhov tsis muaj zog hauv chain drives hauv 15 feeb tom qab siv.

Kev Xyan Kev Nyob Txwb ntawm Barrel, Screw, thiab Die

Xyan Kev Nyob Txwb ntawm Barrel thiab Screw Nyob Thaum Startup thiab Tom Qab Siv Tam Sim

Kev mus su xem txhua hnub yuav tsum pib los ntawm kev saib xyuas lub qhov raj thiab lub raj ntxig rau cov ntsiab lus ntawm kev pu tsuaj zoo li kab ncaj, kab ntev, lossis cov duab uas muaj zis nyob hauv, cov no yog qhov tseem ceeb heev uas yuav tsum saib xyuas kom tau hauv qhov chaw peb xav kom tiv thaiv kev siv hluas ntev thiab kom peb cov khoom tsis muaj dej tsim. Kev xaum kho mob nyob hauv cheeb tsheb pom tias nyuaj siab tshaj plaws tias nyob rau hauv 63% ntawm cov teeb meem cuam tshuam rau sab nraud uas tshaib tawm los ntawm lub qhov raj uas tau hloov chaw tab sis tsis muaj leej twg pom txog ua ntej. Tom qab tshav kaw qhov chaw siv, muaj ib qhov kev saib xyuas dua no tseem tsum tau ua. Cov neeg siv yuav tsum saib xyuas cov duab uas tsim tawm los ntawm polymer uas khiav nyob thaum nws nguas, thiab saib xyuas tias puas muaj kev phom sij tau tshwm sim nyob rau hauv cov sijhawm nguas no thaum txhua yam hloov chaw nyob ntev.

Xaiv kom meej kev pu tsuaj ntawm lub raj ntxig thiab lub qhov raj siv kev saib xyuas nrog borescope thiab kev ntsuas ntau npaum li

Siv cov borescopes los saib xyuas cov barrel liners rau qhov tsis muaj kev siv zoo thiab kuaj qhov ntev ntawm screw flight nrog calipers. Cov kev tso cai nyob hauv cheebtsheem xav kom thay tshuj tib neeg thaum qhov siv dua 0.25% ntawm qhov barrel diameter puv (Ponemon 2023). Piv txwv li, ib qhov barrel 100mm uas muaj qhov nce diameter 0.3mm yuav tsum tau txhim kho tshaj plaws los tiv thaiv qhov tsis zoo ntawm kev flow ntawm khoom siv.

Txhawj xeeb kom meej die thiab adaptor zoo ib yam los txeem xyuas kev flow zoo ib yam ntawm khoom siv

Cov die tsis txoj kev cuam tshuam tuaj noj 22% ntawm qhov ntau thiab meem ntawm thermal strip thickness raws li lub tsev kho mob extrusion stability. Kawm kom meej qhov parallelism ntawm adaptor flange nrog feeler gauges thiab saib xyuas qhov nce ntawm melt pressure hauv qab kaum thaum pib—cov qhov tshwm sim tseem ceeb ntawm teeb meem cuam tshuam.

So sánh phương pháp làm sạch khô và hợp chất purging trong quá trình xử lý thanh cách nhiệt

Kev saib xyuas nyob rau sab nraud cuam tshuam 18% txog kev tsis muaj sijhawm rau cov khaubncaws roj teeb uas tsis ua rau hlawv los ntawm kev saib xyuas, tab sis muaj feem nplooj tias tsis tuaj yeem tshem tiv raws li xws li yav tas los. Cov khoom tshem tiv cuam tshuam rau hauv kev tsim kho tshiab thiab tshiab dua, tab sis lawv ntxiv $12–$18 saum teev rau ib hr lub sijhawm. Xyooj xyooj kev tswj hwm nyob rau hauv qhov ceev npaum li cas thiab qhov nyuaj nyuaj ntawm kev hloov khoom.

Qhov Yav Thaum Tas Sijhawm Thiab Kev Daws Txhij Txhib

Kev kho kom raug rau qhov thaum tas sijhawm txhob tsim kho khaubncaws roj teeb kom ntev thiab zoo ib yam rau cov duab ntim khaub. Kev daws kom raug rau cov lus tig tam sim no cuam tshuam 37% txog kev tsis muaj sijhawm kom compared to kev tig tsoom (2022 Plastics Processing Report).

Txhua Qhov Tswj Hwm Tas Sijhawm Rau Khaubncaws Roj Teb Ib Lub

Pib txoj caij noo tshav kub los ntawm kev rov qab suab tshav kub ntawm lub qhov cub los ntawm 15–20°C txhua zaus mus rau thaum pib npaj 100°C. Sauv tus lag ua ke ntxig 5–10 RPM hauv qab noo tshav kub kom tiv thaiv dej nkhaus tsis pub harden hauv lub cev. Cov feem tswj tsis pub muaj kev siv hluav taws kuj tseem yuav tsum muaj ob tus neeg tswj kom pom zoo.

Saib xyuas cov khoom siv dhau los thiab cov thermal break strips kom meej meej

Xyuas cov polymer pellets uas tsis muaj dej nyiam los ntawm kev siv infrared moisture analyzers. Rau cov strips uas finished lawm, saib xyuas cov:

• Cov kab ntsug uas ntau dua 0.5mm (standard industry tolerance)
• Cov kev sib txawv ntawm density uas ntau dua ±3% ntawm cov specifications
• Cov kev sib txawv hauv thermal conductivity uas ntau dua 0.05 W/mK

Thaub cov ntaub ntawv ntawm cov saib xyuas thiab xam ntev cov kev tswj xyuas kom tiv thaiv

Cov CMM data automated yuav tsum muaj sijhawm thiab yuav tsum tau sib piv nrog cov extruder sensor logs. Txwv kev tswj xyuas ntau tshot tshaj plaws los ntawm kev siv risk matrix:

Piv txwv : Kev kuaj xyuas kev txiav tawm ntawm 0.4mm thiab kev siv cov kab ntsug no yuav tsum tau kuaj xyuas kev txiav tawm hauv 48 teev mus rau hauv ASQ kev tsim kho (hloov tshiab 2023).