ABA tshuab tshuab zaj duab xis, raws li cov cuab yeej tseem ceeb hauv kev tsim cov yeeb yaj kiab yas, yog siv dav hauv kev tsim cov hnab ntim khoom muag, T- lub hnab tsho thiab hnab khib nyiab. Txawm li cas los xij, nyob rau hauv lub sijhawm ua haujlwm ntev - cov txheej txheem ua haujlwm, cov khoom siv ua haujlwm tsis zoo vim kev ua haujlwm tsis raug, cov khoom siv coj los yog ib puag ncig, uas cuam tshuam rau kev tsim khoom thiab cov khoom zoo. Hauv daim ntawv no, cov kev ua txhaum ntau yam ntawm ABA tshuab tshuab zaj duab xis tau sau tseg, thiab raws li qhov xwm txheej tiag tiag thiab kev lag luam kev paub, cov kev daws teeb meem tau muab tso rau pem hauv ntej los muab kev siv rau cov neeg ua haujlwm.
1.Thin film foam Stability Teeb meem: ua rau thiab kev daws teeb meem rau kev hloov pauv, tawg thiab oscillations
Kev ruaj ntseg ntawm daim nyias nyias yog ib qho tseem ceeb Performance index nyob rau hauv cov txheej txheem ntawm tshuab zaj duab xis, thiab nws abnormality yuav ua rau tsis sib xws zaj duab xis thickness, nto defects thiab txawm ntau lawm interruptions. Cov teeb meem tshwm sim muaj xws li zaj duab xis npuas oscillation, rupture thiab lateral oscillation vim kev tswj qhov kub thiab txias, airflow cuam tshuam thiab mechanical kis tau tus mob.
1.1 Zaj duab xis npuas Oscillation thiab rupture
Tej yam tshwm sim: zaj duab xis npuas nto qhia tau hais tias lub sij hawm hloov pauv, tej zaum yuav tshwm sim rau rupture.
Yog vim li cas:
Kev tswj qhov kub thiab txias: Kev kub siab extruder ntau dhau yuav txo cov viscosity yaj, thiab qhov kub tsis sib xws ntawm lub taub hau tuag yuav ua rau qhov sib txawv hauv zos. Piv txwv li, nyob rau hauv ib lub lag luam, kev puas tsuaj rau lub nplhaib cua sov ntawm lub taub hau tuag ua rau kom txias ntawm ib sab, ua rau muaj kev kub ntxhov ntawm lub qhov hluav taws xob thiab 30% nce ntawm qhov zaus ntawm zaj duab xis npuas tawg.
Kev cuam tshuam ntawm Airflow: Inhomogeneous airflow los ntawm lub nplhaib txias los yog kev cuam tshuam ntawm cov huab cua sab nraud tuaj yeem cuam tshuam qhov sib npaug ntawm cov yeeb yaj kiab npuas. Kev sim cov ntaub ntawv qhia tau hais tias txoj kab uas hla ntawm zaj duab xis npuas fluctuates txog li 5 hli thaum lub airflow tshaj tawm txawv nyob rau hauv lub nplhaib cua yog ntau tshaj 10%.
Mismatch of traction: Mismatch of traction speed and the extrusion speed can lead to fluctuations in npuas nro ntawm zaj duab xis. Muaj ib zaug, tus neeg teb xov tooj tsis tuaj yeem kho qhov kev sib hloov ceev ntawm cov traction rollers nyob rau lub sijhawm, ua rau cov yeeb yaj kiab npuas tawg vim tsis muaj qhov nro thaum txias.
Kev daws:
Kub Calibration: Qhov kub ntawm cov cheeb tsam sib txawv ntawm lub taub hau tuag yog ntsuas tsis tu ncua siv lub siab -precision thermocouples. Yog tias qhov sib txawv tshaj ± 2 degree, kho lub zog ntawm cov cua sov rings los yog hloov cov khoom tsis zoo.
Airflow Optimization: ntxuav cov cua tawm ntawm lub nplhaib cua kom ntseeg tau tias txawm tias huab cua ncig, txhim kho cov ntxaij vab tshaus cua nyob ib ncig ntawm cov khoom siv los txo qhov cuam tshuam ntawm cov cua sab nraud. Ib lub tuam txhab txo qis txoj kab uas hla ntawm cov yeeb yaj kiab npuas rau ± 1 hli los ntawm kev hloov kho cov qauv ntawm lub nplhaib roj.
Kev sib tw nrawm: Qhov sib piv traction (feem ntau ntawm 4: 1- 6: 1) yog teem raws li cov yeeb yaj kiab specification, thiab qhov ceev ntawm extruder thiab traction rollers yog synchronized los ntawm inverter.
1.2 Lateral Oscillation ntawm nyias zaj duab xis ua npuas ncauj
Yam tshwm sim: Zaj duab xis npuas oscillate horizontally irregularly los yog raws sij hawm.
Yog vim li cas:
Mechanical resistance: Hnav traction roller bearings tuaj yeem ua rau qhov tsis sib xws ntawm kev sib hloov, los yog misalignment ntawm npuas stabilizer yuav ua rau muaj kev sib txhuam. Nyob rau hauv ib rooj plaub, qhov deformation ntawm npuas stabilizer bracket ua rau 20% sib txawv ntawm kev sib cuag ntawm cov yeeb yaj kiab npuas, ua rau oscillations.
Melt Viscosity: Qhov ruaj khov ntawm zaj duab xis npuas tuaj yeem cuam tshuam los ntawm qhov siab lossis qis qis ntawm cov khoom siv yaj. Piv txwv li, thaum MFR ntawm LDPE tshaj 3 g / 10 min, zaj duab xis npuas yog nquag oscillation vim muaj kev txav mus los ntau dhau.
Kev daws:
Kev tshuaj xyuas thiab kev saib xyuas txhua yam: Tshawb xyuas cov txheej txheem lubrication ntawm traction roller bearing tsis tu ncua thiab hloov cov khoom hnav. Kho qhov chaw ntawm lub npuas stabilizer kom haum nws nrog qhov nruab nrab ntawm qhov tuag.
Kev xaiv cov khoom siv raw: Raws li qhov yuav tsum tau ua ntawm cov txheej txheem, lub yaj ntws tus nqi tsim nyog cov khoom siv raw, ntxiv talc hmoov (ntim ntawm 1% 1% - 3%) los txhim kho cov dej ntws ntawm cov yaj.
2. Tsis sib xws zaj duab xis Thickness: Kev sib koom ua kom zoo ntawm lub taub hau tuag, txias thiab txheej txheem tsis
Qhov tsis sib xws ntawm zaj duab xis thickness yog qhov tseem ceeb uas cuam tshuam rau cov khoom zoo. Cov teeb meem muaj xws li longitudinal thickness fluctuations thiab transverse thickness sib txawv. Lub hauv paus yog vim li cas nyob rau hauv tuag tsim, txias efficiency thiab txheej txheem parameter teeb.
2.1 Longitudinal Thickness Hloov pauv
Yam tshwm sim: lub thickness ntawm zaj duab xis hloov raws sij hawm raws li extrusion kev taw qhia.
Yog vim li cas:
Die Lip Gap: Pwm daim di ncauj qhov sib txawv hloov los yog hauv zos hnav yuav ua rau cov khoom tsis sib xws. Nyob rau hauv ib rooj plaub, qhov sib txawv ntawm cov pwm yog 15 hli, ua rau lub longitudinal thickness ntawm cov zaj duab xis fluctuate los ntawm ntau tshaj 15 feem pua.
Filter Screen Blockage: Carbon deposits los yog impurities ntawm lub lim tuaj yeem ua rau muaj kev hloov pauv hauv lub siab yaj. Qhov kev sim qhia tau hais tias qhov kev hloov pauv ntawm cov yeeb yaj kiab thickness tau nce peb zaug thaum lub siab sib txawv ntawm cov ntxaij lim dej ntau tshaj 15 MPa.
Kev daws:
Tuag Lub Taub Hau Calibration: Qhov sib txawv tuag yog ntsuas nrog lub tentacle meter. Yog hais tias qhov sib txawv tshaj 0.02 hli, kho lub ntsia liaj qhov rooj los yog hloov pwm daim di ncauj. Tsis tu ncua ntxuav cov pa roj carbon deposits nyob rau hauv lub puab phab ntsa ntawm lub taub hau tuag kom du nto.
1. Kev hloov lim: raws li cov yam ntxwv ntawm cov khoom siv raw, teeb tsa lub voj voog hloov lim (feem ntau 200-500 teev), txais yuav cov ntxaij lim dej siab (80–120 mesh), txhim kho pom kev ua haujlwm zoo.
2.2 Lateral Thickness Qhov txawv
Yam tshwm sim: Lub thickness faib ntawm zaj duab xis yog tsis sib xws thoob plaws qhov dav.
Yog vim li cas:
Cua Txias Ring: Tsim qhov tsis zoo lossis qhov tsis sib xws ntawm cov cua ntws tawm ntawm lub nplhaib cua tuaj yeem ua rau qhov sib txawv ntawm qhov txias txias. Nyob rau hauv ib rooj plaub, lub vane lub kaum sab xis ntawm lub nplhaib cua deviated los ntawm 5 degree, uas ua rau ib tug thickness sib txawv ntawm 0.02 hli ntawm ntug thiab qhov chaw ntawm cov zaj duab xis.
Tshuab-Up Ratio: Tshaj siab heev tshuab- nce qhov sib piv (feem ntau ntau dua 3: 1) tuaj yeem ua rau qhov tsis sib xws ntawm cov yeeb yaj kiab npuas.
Kev daws:
Cua Ring Hloov Kho: xaiv ob lub qhov hluav taws xob cua lub nplhaib los yog nruab cov ntawv qhia khiav kom zoo tshaj qhov kev faib tawm. Ntxuav cov plua plav hauv lub nplhaib cua tsis tu ncua kom ntseeg tau tias huab cua zoo.
Kev hloov pauv Parameter: Nyob ntawm cov yam ntxwv ntawm cov khoom siv, teeb tsa lub tshuab tsim nyog- nce piv (LDPE feem ntau yog 2.5: 1-3: 1) txhawm rau them nyiaj rau qhov sib txawv ntawm qhov sib txawv los ntawm kev kho qhov sib txawv ntawm qhov tuag.
3. Nto Defects: zuag qhia tag nrho ntawm raw cov ntaub ntawv, txheej txheem thiab huv si
Deg tsis xws luag (xws li gel hais, kab txaij thiab ntses qhov muag) ncaj qha cuam tshuam rau cov tsos thiab cov khoom ntawm cov yeeb yaj kiab. Cov laj thawj cuam tshuam nrog cov khoom siv raw zoo, kev tswj cov txheej txheem thiab kev huv ntawm cov khoom siv.
3.1 Gel Particles thiab Streakss
Tej yam tshwm sim: pob tshab los yog ib nrab -pob tshab granular protrusions tshwm nyob rau saum npoo ntawm zaj duab xis.
Yog vim li cas:
Raw Material Impurities: Undissolved particles los yog unevenly dispersed additives nyob rau hauv raw cov ntaub ntawv. Nyob rau hauv ib lub lag luam, qhov ntom ntawm gel hais ntawm cov yeeb yaj kiab nyias tau nce tsib npaug vim yog siv cov khoom siv rov ua dua (ntau dua 30%).
Plasticization tsis txaus: Tsis tshua muaj extruder kub los yog siab ntswj kev sib hloov ceev yuav tiv thaiv cov khoom los ntawm melting kiag li. Kev sim cov ntaub ntawv qhia tau hais tias lub melting kub yog txo los ntawm 5℃thiab qhov tshwm sim ntawm gel hais nce los ntawm 20 20% cov ntsia hlau tig ceev tshaj 80 rpm.
Kev daws:
Raw Material Pretreatment: Kev tshuaj xyuas nruj ntawm cov ntaub ntawv raw los tswj qhov feem ntawm cov khoom siv rov ua dua tshiab (feem ntau tsis tshaj 20%). Siv lub tshuab ziab khaub ncaws (80 - 100 degree) kom tshem tawm cov dej noo ntawm cov khoom xyaw thiab tiv thaiv hydrolysis los ntawm kev tsim cov khoom hnyav molecular.
Txheej txheem Optimization: qhov tsim nyog extruder kub profile (piv txwv li, segmented kub 160 - 180 degree) yog teem raws li cov yam ntxwv ntawm raw khoom thiab ntsia hlau tig ceev yog tswj nyob rau hauv ntau yam 60 - 70 rpm.
3.2 Ntses Qhov Muag
Tej yam tshwm sim: me me, pob tshab, undissolved dots tshwm nyob rau saum npoo ntawm zaj duab xis.
Yog vim li cas:
Tuag Lub Taub Hau Kev huv: qhov seem coke lossis impurities nyob rau sab hauv ntawm lub taub hau tuag tuaj yeem ua rau cov khoom tsis sib xws. Nyob rau hauv ib rooj plaub, tus ntses qhov muag qhov tsis xws luag tau nce mus rau 5% vim kev tu ncua ntev (ntau tshaj 24 teev) ntawm cov pwm.
Txias tus nqi: Cov cua ntws ntau dhau los ntawm lub nplhaib txias tuaj yeem ua rau cov yaj mus sai sai, ua rau cov khoom tsis muaj kuab lom rau ntawm qhov chaw.
Kev daws:
Kev tu lub taub hau tuag: Ntxuav lub taub hau tuag txhua txhua 8 teev nrog tooj liab scrapers kom tshem tawm cov khoom tawg. Tshem tawm cov taub hau tuag ib ntus kom ntxuav tob tob (xws li raus hauv trichloroethylene).
Kev Kho Txias Txias: Teem lub airlock txaus tus nqi (feem ntau 0.5-1.0 m3 / min) raws li lub thickness ntawm zaj duab xis kom tsis txhob overcooling hauv zos.
4. Mechanical Failures: Kev Tiv Thaiv Kev Tiv Thaiv thiab Cov Txheej Txheem Hloov Cov Txheej Txheem
Mechanical tsis ua hauj lwm yog qhov ncaj qha ua rau cov khoom siv downtime. Cov teeb meem muaj xws li cov ntsia hlau hnav, lub suab nrov tsis zoo ntawm kev txo qis gearbox, cua sov lub nplhaib puas tsuaj, thiab lwm yam.
4.1 Screw Wear
Yam tshwm sim: Tsawg extrusion ntim, yaj siab hloov pauv.
Yog vim li cas: ntev - siv sij hawm tuaj yeem ua rau cov ntsia hlau nto hnav, lossis hlau impurities hauv cov khoom siv raw tuaj yeem ua rau hnav. Hauv ib lub lag luam, qhov hnav tus nqi ntawm cov ntsia hlau tau nce peb zaug vim tias tsis muaj cov hlau nplaum sib nqus.
Kev daws:
Kev Tiv Thaiv Kev Hloov: Teem lub voj voog hloov (feem ntau yog 5,000-8,000 teev) raws li cov khoom siv ntsia hlau (piv txwv li, 38 CrMoA) thiab ntsuas qhov sib txawv ntawm cov ntsia hlau thiab lub thoob (hloov cov ntsia hlau yog tias qhov sib txawv ntau tshaj 0.3 hli).
Impurity Control: Txhim kho cov hlau nplaum sib nqus (magnetic teb lub zog tsawg kawg yog 8000 Gs) ntawm qhov nkag mus lim hlau impurities los ntawm cov khoom siv raw.
4.2 Tsis zoo li qhov txo qis Gearbox suab nrov
Kev ua tau zoo: Lub suab nrov txawv txav tshwm sim thaum lub sijhawm ua haujlwm.
Yog vim li cas: Hnav bearings lossis iav meshing tsis zoo yuav ua rau muaj kev vibration. Nyob rau hauv ib rooj plaub, lub lubricant nyob rau hauv lub gearbox ntawm lub gearbox ntawm lub gearbox deterioration, ua rau lub kub ntawm cov bearings nce mus txog 80 degree, ua rau lub suab nrov txawv txav.
Kev daws:
Lubrication Maintenance: roj yog hloov txhua 500 teev (siv L-CKC220 industrial gear oil) thiab cov roj qib thiab cov khoom zoo raug kuaj xyuas tsis tu ncua.
Kev Hloov Cov Khoom Siv: Yog tias muaj suab nrov txawv txav, tshem tawm qhov txo qis gearbox, tshawb xyuas qhov hnav thiab tsim kua muag ntawm cov bearings thiab lub zog, thiab hloov cov khoom puas yog tias tsim nyog.
V. Cov Kev Qhia Txog Kev Ua Haujlwm thiab cov lus teb thaum muaj xwm txheej ceev: qhov tseem ceeb los txo qhov kev pheej hmoo ntawm kev ua tsis tiav
Ntxiv nrog rau kev ua kom zoo tshaj plaws, kev ua haujlwm tau zoo thiab muaj peev xwm teb thaum muaj xwm txheej ceev yog qhov tseem ceeb los txo qis kev poob haujlwm. Cov kev ntsuas hauv qab no yuav tsum tau ua:
Cov Txheej Txheem Txheej Txheem: Tsim cov txheej txheem kev khiav hauj lwm rau cov khoom pib, kaw thiab kev hloov pauv kom tsis txhob yaj degradation vim kev nres thiab pib sai. Piv txwv li, lub extruder kub yuav tsum tau txo kom qis dua 120℃thiab residual yaj nyob rau hauv lub taub hau tuag ntxuav ua ntej kaw.
Kev npaj muaj xwm txheej ceev: txhawm rau tsim kom muaj kev teb sai sai rau kev ua txhaum tam sim xws li zaj duab xis npuas rupture thiab thickness deviations. Piv txwv li, thaum zaj duab xis npuas ruptures, tam sim ntawd txo traction ceev (tsawg kawg 30%) thiab xyuas kub thiab airflow.
Cov ntaub ntawv kaw lus: Sau cov txheej txheem tseem ceeb (xws li qhov kub thiab txias, siab thiab ceev) thiab qhov tshwm sim tsis ua haujlwm, thiab siv Cov Txheej Txheem Txheej Txheem Txheej Txheem (SPC) txhawm rau txheeb xyuas cov kev pheej hmoo. Ib lub tuam txhab zam kev tsis txaus siab los ntawm kev siv cov ntaub ntawv txheeb xyuas los kwv yees cov ntsia hlau hnav ob lub lis piam ua ntej.
Xaus:
Kev ua haujlwm ruaj khov ntawm ABA blower yuav tsum muaj kev ntsuas dav hauv kev tswj qhov kub thiab txias, airflow optimization, tswj cov khoom siv raw, kev tu txhua yam thiab kev ua haujlwm tshwj xeeb. Los ntawm kev siv kev tiv thaiv kev saib xyuas, tsim kom muaj kev ua txhaum database thiab txhim kho kev ua haujlwm ntawm cov neeg ua haujlwm, tus nqi tsis ua haujlwm tuaj yeem txo qis heev thiab kev tsim khoom thiab cov khoom zoo tuaj yeem txhim kho. Nyob rau hauv lub neej yav tom ntej, nrog rau daim ntawv thov ntawm Internet ntawm yam (IoT) thiab (AI, cov cuab yeej tsis ua hauj lwm kwv yees thiab kev hloov tsis siv neeg yuav dhau los ua kev lag luam qauv, ntxiv kev txhawb nqa kev txawj ntse ntawm cov txheej txheem cua tshuab.
