Ib lub ntsia hlau tshiab tuaj yeem daws cov kab mob tsis tu ncua. Nws kuj tseem yuav tso qhov chaw tiag tiag tsis tau kov. Nrhiav qhov tsis xws luag ua ntej, tom qab ntawd qhia qhov hloov pauv ntawm cov khoom siv thiab cov pov thawj.
Teb ceev
Tsis txhob yuam kom pob tshab granulation ib leeg ntsia hlau los ntawm daim duab ntawm cov specks dub ib leeg. Sau thaum qhov tsis xws luag tshwm sim, tshuaj xyuas cov khoom noj thiab cov dej ntws qis, sib piv cov kev ua haujlwm, tom qab ntawd ntxuav thiab ntsuas cov ntsia hlau thiab lub thoob raws li cov nroj tsuag tau pom zoo cov txheej txheem tu. Nanhaiya uapob tshab granulation ib leeg ntsia hlauhais txog kev sib hloov du, tswj tau melting thiab nto tiav. Cov yam ntxwv no tseem ceeb thaum tam sim no geometry lossis nto yog qhov tseeb ntawm cov khoom khaws cia lossis degraded.
1. Cov specks dub, yellowing thiab haze yog txawv pov thawj
Ntawm nws nplooj ntawv pob tshab granulation khoom, Nanhaiya teev cov pob dub, xim hloov, whitening, tsis zoo luster, pores thiab lwm yam pom blemishes raws li kev txhawj xeeb rau daim ntawv thov no. Lawv yuav tsum tsis txhob muab dov mus rau hauv ib qho kev tsis txaus siab hu ua "kev pom tsis zoo." Txhua tus qauv taw qhia qhov kev tshawb nrhiav hauv qhov sib txawv.
Pib nrog tus qauv tsis xws luag thiab cov ntaub ntawv teev sijhawm. Puas yog qhov teeb meem tshwm sim tsuas yog tom qab kaw, thaum lub sij hawm hloov xim, nrog ntau regrind tshiab, lossis thoob plaws hauv kev khiav haujlwm ruaj khov? Khaws cov qauv ntawm cov khoom siv tau thiab tsis tsim nyog. Ib daim duab pab, tab sis sau cov resin, batch, lub sij hawm, ntsia hlau ceev, kub nyeem ntawv thiab screen-hloov keeb kwm kom ib tug neeg yuav piv tau lawv.
| Yam tus neeg ua haujlwm pom | Muaj txiaj ntsig thawj qhov sib piv | Dab tsi nws tsis ua pov thawj |
|---|---|---|
| Cais qhov tsaus nti | Cov khoom xa tuaj piv rau lim yaj; zaus tom qab kaw lossis hloov pauv | Tias tus ntsia hlau nws tus kheej tsim txhua yam |
| Zuag qhia tag nrho daj lossis xim av hloov | Resin ntau, lub sijhawm nyob, ntsuas qhov kub thiab txias thiab nres qauv | Tias qhov nyuaj ntsia hlau nto yuav kho cov keeb kwm thermal |
| Huab lossis dawb tsos | Pub mob, melting, kab mob thiab qhov kawg-ib feem xeem cov qauv | Qhov pellet xim ib leeg ntsuas qhov kub hnyiab |
| Qee zaum xim streak | Cov xim dhau los lossis cov khoom siv, kev hloov pauv raws li qhov sib txawv thiab qhov chaw ntim-ntws | Qhov ntau purging yuav ib txwm mus txog lub hnab ris tuag |
Lub Hoobkas nqe lus nug kuv yuav nug yog qhov yooj yim: "Thaum lub sijhawm twg thawj tus qauv tsis zoo tshwm sim?" Yog hais tias tib specks twb muaj nyob rau hauv lub pub, redesigning lub metering seem yuav tsis tshem tawm qhov chaw. Yog tias lawv tshwm sim tsuas yog tom qab lub adapter tau teeb tsa, lub hau ntswj tshiab yuav plam qhov teeb meem tag nrho.
2. Txheeb xyuas cov khoom siv ua ntej qhib lub tshuab
Siv cov ntsiab lus uas twb muaj lawm, pom zoo coj mus kuaj thiab cov ntaub ntawv khaws tseg kom cais cov khoom noj, ntsia hlau / chim, lim, adapter thiab tuag. Tsis txhob tsim cov qauv improvised lossis kev soj ntsuam cov txheej txheem ntawm cov kab kub, kev kub siab. Thaum xav tau kev nkag mus, cov neeg ua haujlwm tau txais kev cob qhia yuav tsum siv lub xaib cov khoom siv cais tawm thiab cov txheej txheem tu.
Sib piv tib cov resin ntau ntawm cov theem ua tiav uas cov kab tso cai rau kev khaws cia zoo. Saib ntawm dosing thiab regrind tuav ua ntej, ces qhov screen residue thiab downstream tooling. Sau seb lub siab, lub cev muaj zog load lossis cov zis pib hloov nrog qhov pom kev tsis zoo. Covib leeg ntsia hlau tsim rau granulation qhianpog qhov dav pub, qhov cua thiab lim dej; ntawm no lub hom phiaj yog nqaim: txheeb xyuas theem twg thawj zaug ntxiv qhov pom qhov tsis xws luag.
Peb pom los ntawm cov khoom siv ntsia hlau sab:dub-speck suav tsis muaj sijhawm thiab qhov chaw ua haujlwm yog qhov tsis muaj zog rau kev hloov hlau. Ib qho piv txwv los ntawm cov khoom noj kom huv, ib qho piv txwv los ntawm cov khoom tsis zoo thiab lub cav ua haujlwm luv luv qhia rau peb paub ntau ntxiv txog seb puas yuav hloov cov ntsia hlau tsim.
Yog tias kev kis kab mob rov qab los tom qab tshem tawm, ua raws li Nanhaiya'sib leeg-ntsia hlau tu phau ntawv qhialos txiav txim seb puas yuav tsum tau muaj kev tswj xyuas huv thiab tshuaj xyuas. Kab lus no yog hais txog kev kuaj mob thiab kev yuav khoom, tsis yog txoj kev ntxuav lub cev. Kos ib polished nto mus caum ib tug deposit yuav tsim tau lwm qhov chaw rau residue mus sau.
3. Dab tsi Nanhaiya pob tshab granulation tsim tuaj yeem hais tau
Nanhaiya piav qhia txog kev hloov pauv ntawm lub taub hau ntsia hlau, tsis muaj kev cuam tshuam grooves thiab xov, thiab tsawg dua qhov chaw rau cov khoom siv yav dhau los kom nyob twj ywm thaum hloov pauv. Nws nplooj ntawv cov khoom tseem qhia txog 38CrMoAlA nitrided steel, sib sib zog nqus ion nitriding thiab ib qho nyuaj-chrome nto hauv nws cov pob tshab granulation muab. Muab qhov kev txiav txim kom meej rau ntawm daim duab kos. Ib nplooj ntawv uas tham txog ntau qhov kev kho mob saum npoo tsis qhia tus kws tshuaj xyuas seb qhov kev kho mob twg yog nyob ntawm koj cov ntsia hlau tshwj xeeb.
Tib yam khoom piav qhia muab qhov nruab nrab lossis qis compression piv, feem ntau2.0:1 rau 2.5:1, rau pob tshab granulation thiab sib tham ntev L / D nrog qis ceev thiab me me shear. Qhov ntawd yog thawj tog tsim ntau yam rau cov khoom no, tsis yog kev teeb tsa thoob ntiaj teb rau txhua pob tshab polymer. Nplooj ntawv tseem hais txog PS hauv nws cov lus piav qhia sib xyaw ua ke, yog li tus neeg yuav khoom ua lwm yam khoom siv yuav tsum hais meej meej.
Cov kev xaiv no muaj lub hom phiaj. Kev hloov pauv tau yooj yim thiab yooj yim tuaj yeem txo cov khoom ntim. Cov txheej txheem saum npoo yuav tsum muaj sia nyob ntawm qhov tseeb resin, additives thiab tu niaj hnub. Melting yuav tsum ua kom tiav yam tsis muaj kev ntxiv thermal raug. Tsis muaj qhov no txhais tau hais tias lub hau ntswj ib leeg tuaj yeem tshem tawm cov khoom qias neeg, kho lub thoob puas tsuaj, lossis kho lub hnab ntim tuag uas tuav cov khoom qub qub.
Tsis txhob luam tus lej tsis muaj nws cov ntsiab lus.Nanhaiya's pob tshab-cov khoom seem muab 2.0: 1 rau 2.5: 1 rau daim ntawv thov no. Ib lub rooj sib cais dav dav ntawm tib nplooj ntawv tham txog PVC yeeb nkab piv txwv. Lawv tsis yog pob tshab pellet kab qhov kev pom zoo ceev, kub lossis compression chaw.
4. Thaum twg cov ntaub ntawv pov thawj pom zoo rau lub hau ntswj hloov?
Tom qab kev tswj xyuas kom huv, tshuaj xyuas lub hauv paus ntsia hlau, kev ya davhlau, lub taub hau thiab kev sib txuas, ntxiv rau qhov siv tau lub thoob bore thiab downstream adapter. Sau qhov chaw ntawm tawv tawv residue, pits, khawb, kev tiv thaiv puas thiab ntsuas hnav. Yog tias qhov qub tau hnav, tsis txhob ua ib lub hau ntswj tshiab los ntawm kev luam txhua qhov tam sim no. Nanhaiya uahloov ib-screw phau ntawv qhiapiav qhia yuav ua li cas cais cov geometry npaj los ntawm hnav ntawm tus qauv.
| Cov ntaub ntawv pov thawj tom qab kev tshawb nrhiav | Kev txiav txim siab tom ntej no tsim nyog |
|---|---|
| Qhov tsis xws luag ploj nrog kev noj lossis tshuaj kho | Tswj cov tswv yim; ib lub ntsia hlau tshiab tsis raug cai los ntawm qhov tsis xws luag. |
| Deposit clears tom qab pom zoo huv si thiab tsis rov qab | Sau cov ntaub ntawv huv thiab saib xyuas kev hloov pauv ua ntej rov tsim kho kho vajtse. |
| Residue rov qab mus rau daim ntawv qhia lub taub hau los yog lub hnab tshos channel | Tshawb xyuas qhov hloov pauv thiab tshem tawm geometry ntawm daim duab hloov pauv tau pom zoo. |
| Kev tiv thaiv nto yog puas los yog ua hauj lwm txoj kab uas hla yog hnav | Ntsuas lub mating chim thiab xaiv kev kho, ntsia hlau hloov los yog khub hloov los ntawm qhov tseeb. |
| Teeb meem pib ntawm lub adapter, lim lossis tuag | Kho qhov khoom tivthaiv ua ntej yuav cov ntsia hlau los daws nws. |
Qhov twg puv los yog paug pub tau hnav ib feem, nug seb Nanhaiya tussuper hnav-resistant ib leeg ntsia hlaukev tsim kho yog tsim nyog. Rau qib ntshiab pob tshab, ntau alloy tsis tau zoo dua. Qhov hnav mechanism, tiv thaiv cheeb tsam, cleanability thiab tiav nto tag nrho nyob rau hauv tib qhov kev txiav txim.
5. Kev txiav txim tawm tsam qhov tsis xws luag, tsis yog lo lus "paub meej"
Rau kev tshuaj xyuas pellet, pom zoo rau qhov piv txwv, qauv loj, teeb pom kev zoo, keeb kwm yav dhau, pom-tsis zoo pawg thiab tso cai suav lossis siv cov qauv. Yog hais tias tus neeg muas zaub cov khoom yog ib daim ntawv ntshiab los yog molded ib feem, sim uas txhais daim ntawv kawg thiab. Pellet zoo li tsis tuaj yeem sawv ntsug rau kev ua haujlwm kho qhov muag hauv qhov ua tiav.
ASTM D 1003-21 1npog haze thiab luminous transmittance ntawm haum planar pob tshab yas. Siv nws rau daim ntawv tsim nyog lossis kuaj cov quav hniav, tsis yog tus lej ncaj qha "dhau ntawm xoob pellets" tus lej.ISO 1133-1: 2022qhia txog MFR thiab MVR kev ntsuas raws li qhov ntsuas kub thiab cov khoom thauj khoom. Yog tias cov dej ntws hauv qhov kev npaj txais, txheeb xyuas cov xwm txheej ntawd; tus lej los ntawm nws tus kheej tsis yog qhov kev sim dub-speck.
Nug rau kev tswj cov ntsia hlau kos duab, xaiv qhov chaw tsim kho, qhov loj me thiab cov ntaub ntawv tshuaj xyuas khi rau qhov ntawd. Ib qho kev sim yuav tsum siv qhov pom zoo resin thiab txheej txheem qhov rais, nrog rau cov hauv paus huv si thiab rov ua piv txwv tom qab stabilization. Yog tias tus neeg yuav khoom hloov pauv cov khoom noj ntawm lub hauv paus thiab qhov kev sim tshiab-ntsia hlau, qhov tshwm sim yuav nyuaj rau kev txhais.
Yuav ua li cas xa Nanhaiya
- Tshuab qauv thiab thawj cov ntsia hlau / chim kos duab
- Qhov tseeb resin qib, additives thiab regrind ntau yam
- Zoo thiab phem pellets nrog batch/time labels
- Cov duab uas qhia txog qhov tsis xws luag tiv thaiv keeb kwm yav dhau
- Hloov pauv, kaw thiab ntxuav keeb kwm
- Ib txwm ceev, tso zis, kub, siab thiab lub cev muaj zog load
- Screen, adapter thiab tuag cov ntsiab lus
- Screw thiab chim ntsuas nrog rau hnav daim ntawv qhia
- Lub hom phiaj tshuaj xyuas pellet thiab qhov kawg ntawm kev xeem
- Yuav tsum tau cov ntaub ntawv, nto thiab seem
Peb tuaj yeem sib tham txog kev hloov pauv yooj yim, sib xyaw ua haujlwm thiab kev tiv thaiv saum npoo ib zaug peb paub txog txoj kev tsis raug. Thawj qhov kev txiav txim siab yuav khoom yuav yog khaws cov ntsia hlau uas twb muaj lawm thiab kho cov khoom noj lossis cov cuab yeej qis qis. Qhov ntawd tseem yog cov lus teb muaj txiaj ntsig.
Cov lus nug uas nquag nug
Puas yog cov specks dub hauv pob tshab pellets ib txwm txhais tau tias cov ntsia hlau puas lawm?
Tsis yog. Txheeb xyuas cov khoom siv, tshuaj, ntim tshuaj ntsuam, adapter, tuag, kaw keeb kwm thiab cov txheej txheem hloov xim ua ntej muab qhov tsis xws luag rau cov ntsia hlau. Lub ntsia hlau yuav ua rau muaj kev xav tias muaj zog dua thaum qhov tsis xws luag nyob rau hauv kev tswj cov khoom siv thiab cov khoom ntxuav tau pom cov khoom seem los yog ntsuas kev puas tsuaj.
Thaum twg yuav tsum tau hloov lub pob tshab granulation ntsia hlau es tsis txhob ntxuav?
Kev hloov pauv tsim nyog rov xyuas dua thaum tswj kev huv tsis tshem tawm cov kab mob sib kis thiab kev tshuaj xyuas pom qhov hnav, qhov chaw, kev tiv thaiv qhov chaw puas lossis cov duab geometry uas rov qab ntxiab khoom. Ntsuas lub thoob thiab. Ib tug tshiab ntsia hlau nyob rau hauv ib tug puas bore tsis yog ib tug tag nrho kho.
Dab tsi compression piv Nanhaiya piav qhia txog pob tshab granulation?
Cov Lus Qhia Ntau Lawm ntawm Nanhaiya lub pob tshab granulation ib nplooj ntawv ntsia hlau piav qhia txog qhov nruab nrab lossis qis compression piv, feem ntau 2.0: 1 txog 2.5: 1. Nws yog cov lus piav qhia tsim qauv, tsis yog qhov chaw thoob ntiaj teb rau txhua lub pob tshab polymer lossis tshuab.
Cov pellet zoo li puas tuaj yeem ua pov thawj tias ib feem ua tiav yuav muaj cua daj cua dub?
Tsis yog. Tshawb xyuas cov pellets kom pom qhov tsis xws luag, tab sis ntsuas qhov ua tau zoo ntawm qhov ntsuas qhov kawg lossis kuaj cov quav hniav thaum nws tseem ceeb. ASTM D1003-21 npog haze thiab luminous transmittance ntawm haum planar pob tshab yas qauv. Sau cov qauv thiab cov qauv ntsuas hauv qhov kev npaj txais.
Peb yuav tsum xa dab tsi los hais txog kev hloov pob tshab granulation ntsia hlau?
Xa lub tshuab thiab cov ntsia hlau / lub thoob kos duab, qib resin, pub thiab rov ua cov ntsiab lus, cov ntaub ntawv kev khiav hauj lwm tam sim no, cov qauv tsis xws luag nrog lub sij hawm, kev ntxuav keeb kwm, cov ntsia hlau thiab lub thoob ntsuas, lub hom phiaj pellet thiab cov txheej txheem zaum kawg, thiab cov ntaub ntawv tshuaj xyuas yuav tsum muaj rau cov ntsia hlau tshiab.
