I. Kev tswj qhov kub thiab txias
PVC yog qhov kub thiab txias heev -rhiab heev thiab yooj yim decomposes thaum raug kub siab ntev hauv lub xeev zoo li qub.
1. Kev ntsuas kub qis: Yog tias lub sijhawm tsis ua haujlwm yuav tsum siab tshaj 15-20 feeb, txo lub chim thiab lub taub hau kub kom txog li 140℃-150℃(hauv qab PVC lub iav hloov qhov kub, tsis tau tswj kom muaj cua sov txaus kom luv lub sij hawm pib ua ntej). Tsis txhob kaw cov cua sov kom tiav, vim tias cov khoom cua txias, kev cog lus, thiab rov ua dua tom qab yuav ua rau bubbling lossis degradation.
2. Tiv thaiv Localized Overheating: Xyuas kom cov khoom cua sov ua haujlwm kom zoo thiab cov tswj qhov kub thiab txias tso saib cov ntawv nyeem kom tsis txhob muaj qhov kub thiab txias vim qhov kev tswj tsis tau.
3. Tuag Rwb thaiv tsev: Cov tuag yog qhov chaw uas muaj cov khoom siv siab tshaj plaws. Saib xyuas qhov kub thiab txias kom tsis txhob scorching ntawm yaj.
II. Tsawg-Kev khiav ceev
1. Teem sijhawm sib hloov / qis-Kev khiav ceev: Rau lub sijhawm tos ntev, nws raug nquahu kom pib lub tshuab tseem ceeb ntawm qhov nrawm (5-10 rpm) txhua 10-15 feeb thiab tsis ua haujlwm rau ob peb feeb. Qhov no tso cai rau PVC nyob rau hauv cov ntsia hlau ntws, tiv thaiv cov khoom los ntawm adhering rau cov ntsia hlau vim ntev stagnation. Ib txhij, shear action pab dissipate accumulated cua sov.
2. Tiv thaiv kom tsis txhob degradation: ua kom tiav qhov tsis ua haujlwm tso cai rau cov khoom siv hluav taws xob hauv cheeb tsam kom nthuav tawm cov khoom mus rau qhov kub thiab txias, sai sai ua rau daj streaks lossis cov pob dub.
III. Txias System Management
1. Kaw Cov Dej Txias Dej: Thaum lub sij hawm standby, cov khoom siv tsis tas yuav tsum tau plasticization thiab shear heat yog tsawg. Tshem tawm cov dej txias rau lub thoob thiab cov ntsia hlau (los yog txo lub valve ntws) kom tsis txhob muaj qhov kub thiab txias ntau dhau los ntawm cov dej- vim tias kub poob, uas tuaj yeem cuam tshuam rau kev pib tom qab.
2. Kev Tiv Thaiv Die Gap: Tshawb xyuas qhov qhib tuag ntawm lub taub hau tuag kom tsis muaj khoom txawv teb chaws. Yog tias tsim nyog, siv ib qho me me ntawm qhov kub siab - roj roj los tiv thaiv oxidation lossis khawb ntawm qhov qhib tuag.
IV. Hopper thiab pub
1. Kaw lub rooj noj mov: kaw lub rooj vag swb hauv qab lub hopper thiab nres lub feeder.
2. Khaws cov khoom seem: Khaws cov khoom siv PVC hauv lub thoob kom cais tawm ntawm huab cua thaum sawv ntsug, tiv thaiv oxidation ntawm cov ntsia hlau thiab cov phab ntsa.
3. Kev tiv thaiv noo noo: Yog tias qhov chaw nyob ib puag ncig muaj av noo, xyuas kom cov khoom siv PVC hauv lub hopper npog los tiv thaiv kev nqus dej.
V. Kev siv hluav taws xob thiab kev nyab xeeb
1. Zog-Txuag hom: Yog tias ncua sij hawm poob qis (piv txwv li, tshaj li 2 teev) thiab lub sijhawm rov pib ua haujlwm tseem tsis paub meej, nws raug nquahu kom tso cov ntaub ntawv pov tseg tag nrho, ntxuav lub tshuab, thiab kaw nws es tsis txhob khaws cia ntev ntev - qhov kub thiab txias. Kev rwb thaiv tsev ntev siv hluav taws xob thiab ua rau muaj kev pheej hmoo ntawm cov khoom degradation.
2. Kev tshuaj xyuas: Thaum lub sij hawm standby, muab cov neeg ua hauj lwm los xyuas lub sij hawm ntsuas kub ntawm lub tswb thiab tshuaj xyuas lub taub hau extruder rau cov cim ntawm cov khoom poob los yog pa luam yeeb.