Cov txheej txheem ntws thiab cov teeb meem tshwm sim ntawm cov yas hloov kho

Cov khoom siv tseem ceeb ntawm cov yas hloov kho yog ntxaib-ntsia hlau extruder. Cov yam ntxwv ntawm kev hloov kho plastics yog txawv, txoj kev siv yog txawv, thiab cov additives kuj txawv. Cov txheej txheem tsim khoom thiab cov teeb meem tshwm sim ntawm cov khoom hloov pauv tau raug tshuaj xyuas raws li hauv qab no. Cov txheej txheem ntau lawm ntws yog: batching - mixing - extruding - k stretching - txias - tag nrho cov nplej - ntim. Cov teeb meem zoo ntawm kev hloov kho cov khoom yas tuaj yeem muab faib ua qhov tsis xws luag thiab kev ua haujlwm tsis zoo. Ntawm no peb tham txog cov tsos mob. Cov tsos mob tshwm sim feem ntau cuam tshuam nrog cov txheej txheem tsim khoom, cov khoom siv raw zoo, cov khoom siv ntau lawm, ib puag ncig tsim khoom thiab lwm yam. Feem ntau cov tsis xws luag muaj xws li ntev sawb, nruam grain, dub qhov chaw, discoloration, tsis zoo nqus tsev vacuum, seem hlau, tsis zoo plasticization, carbonization, thiab lwm yam. Pib los ntawm cov txheej txheem tsim khoom, tsab xov xwm tshuaj xyuas cov teeb meem zoo ntawm cov yas hloov kho thiab muab cov kev ntsuas tawm tsam. Kev daws teeb meem 1: Qhov ntev ntawm cov sawb uas yog ntau tshaj 2 npaug ntawm cov khoom ib txwm raug suav hais tias yog ib qho sawb. Qhov laj thawj tseem ceeb yog qhov pib brace lossis tawg bar, kev taw qhia ntawm lub bar tsis ncaj, thiab cov cuab yeej txiav yog hnav los yog chipped. Cov kev daws teeb meem tseem ceeb yog raws li hauv qab no: 1) Thaum lub sij hawm ib txwm tsim, kho cov kev taw qhia ntawm cov sawb nkag mus rau pelletizer thiab kho qhov ntev ntawm cov dej ntws; 2) Thaum lub sij hawm tsim khoom, lub strips tawg yuav tsum nruj nreem npog thiab cov txheej txheem yuav tsum tau kho; 3) Ua tib zoo saib xyuas lub tshuab txiav thiab hloov lub tshuab txiav kom raug lub sijhawm; 4) Siv lub tshuab vibrating tsim nyog los tshuaj xyuas lub strip ntev. 2. Cov khoom sib txuas Ob lossis ntau qhov sib txuas ntawm ib sab yog hu ua cov khoom sib txuas. Lub ntsiab yog vim li cas rau nyuj zus tau tej cov thaum rub, tsis txaus ntev ntawm cov dej nkag, thiab lwm yam. Cov kev daws teeb meem tseem ceeb yog raws li nram no: 1) Thaum extruding lub brace, xaiv cov kev taw qhia pulley nrog qhov dav dav thiab cais cov tuav txuas ua ke; 2) Kho qhov ntev kom zoo ntawm cov dej txias, uas yog, txo cov naj npawb ntawm cov khoom; 3) Cov khoom txuas ntxiv tuaj yeem raug tshuaj xyuas nrog lub vibrating npo nrog cov mesh tsim nyog. 3. Muaj cov dub speckled hais nyob rau hauv los yog nyob rau hauv lub particle nto. Qhov laj thawj tseem ceeb ntawm cov pob dub yog: lub tshuab ntxuav tsis huv; Cov pob dub hauv cov khoom siv raw; Screw carbonization: ib puag ncig muaj kuab paug. Cov kev daws teeb meem tseem ceeb: 1) Nyob rau hauv cov txheej txheem ntawm kev hloov pauv ntau lawm thiab tshuab ntxuav, yog tias lub tshuab tsis raug ntxuav, nws tuaj yeem raug ntxuav dua; 2) Txhim khu kev tshuaj xyuas cov khoom tuaj, tshwj xeeb tshaj yog cov pob dub thiab cov impurities yooj yim tshwm sim nyob rau hauv cov pob zeb hauv av ntim hmoov lossis nplaim hluav taws; 3) Ua tib zoo saib xyuas thiab kho qhov kub thiab txias ntawm lub taub hau ntsia hlau thiab lub sijhawm nyob ntawm cov khoom siv hauv lub hau ntsia hlau kom tiv thaiv qhov kub ntawm qhov kub siab dhau; 4) Nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas ib puag ncig kev nyab xeeb thiab ua haujlwm zoo ntawm kev sib cais thiab kev tiv thaiv ntawm cov tshuab tsim cov khoom ntawm cov xim sib txawv. 4. Discoloration yog manifested los ntawm tam sim ntawd hloov ntawm cov khoom xim thaum lub sij hawm ntau lawm, nrog pom tseeb xim txawv. Lub ntsiab ua rau discoloration yog tsis sib xws; Lub tshuab ntxuav tsis huv; Qhov kub thiab txias heev; Shear muaj zog heev. Cov kev daws teeb meem tseem ceeb: 1) nruj me ntsis ua raws li cov txheej txheem sib tov kom ntseeg tau tias qhov sib tov sib xyaw; 2) Kev tshuaj xyuas txhua xyoo yuav tsum tau ua tom qab ua tiav ntawm kev tu lub tshuab kom paub meej tias lub tshuab huv si; 3) Tswj lub extrusion kub los tiv thaiv cov xim hmoov decomposition tshwm sim los ntawm kub kub; 4) Xaiv cov ntsia hlau tsim nyog ua ke kom tsis txhob muaj zog shearing. Tus yuam sij rau kev tswj kom zoo ntawm cov yas hloov kho yog kev tswj cov khoom siv thiab cov txheej txheem. Tsis tas li ntawd, ib puag ncig ntawm qhov chaw tsim khoom thiab qhov zoo ntawm cov khoom siv raw kuj cuam tshuam rau nws qhov zoo. Txhawm rau kom ntseeg tau qhov zoo ntawm cov khoom siv yas hloov kho, ntau yam cuam tshuam yuav tsum raug coj mus rau hauv tus account hauv cov txheej txheem tsim khoom thiab kev sib xyaw ua ke zoo yuav tsum tau ua.