Ib tug ntsia hlau yuav tsum tau xaiv nyob ib ncig ntawm lub tiag tiag resin qib, sib tov, zaj duab xis khoom thiab extrusion kab. "65 hli ntsia hlau rau LDPE zaj duab xis" yog qhov pib, tsis yog qhov ua tiav.
Teb ceev
Xaiv ib zaj duab xis- tshuab tshuab hauv qhov kev txiav txim no:resin thiab formulation, tiav zaj duab xis thiab txheej txheej, kab lub luag hauj lwm, ces ntsia hlau geometry thiab nto system. Nug kom paub meej cov qib resin thiab yaj ntws kuaj mob, tsis yog "LDPE," "LLDPE" lossis "HDPE." Sau cov khoom sib xyaw, cov khoom siv ntxiv, cov ntsiab lus rov ua dua tshiab, tso zis, ntsia hlau nrawm, lub cev muaj zog, tuag, zaj duab xis dav thiab thickness ntau yam. Tsuas yog tom qab ntawd txiav txim siab txoj kab uas hla, L / D, pub qhov tob, melting profile, metering seem thiab seb ib qho kev thaiv lossis qhov sib xyaw yog qhov ncaj ncees.
Vim li cas "65 hli ntsia hlau rau LDPE zaj duab xis" tsis txaus
Peb tau txais cov lus nug uas muab ib txoj kab uas hla, ib tug polymer acronym thiab lwm yam me me. Qhov ntawd yog txaus los txheeb xyuas cov khoom tsev neeg, tab sis tsis txaus los txiav cov davhlau. Ob kab ob leeg tuaj yeem ua cov yeeb yaj kiab polyethylene nrog 65 hli ntsia hlau thaum khiav cov qib sib txawv, sib xyaw ua ke, nrawm nrawm, tuag thiab tso tawm lub hom phiaj. Ib lub geometry uas ua haujlwm ntawm ib kab tuaj yeem khiav kub, nce siab lossis tawm mus rau lwm qhov.
Zaj duab xis tshuab ua rau qhov tshwj xeeb rhiab heev vim extrusion tsuas yog thawj feem ntawm cov txheej txheem. Melt sib xws mus txog qhov tuag, npuas, cua nplhaib thiab nqa-up system. Thickness variation los yog qhov muag pom tsis zoo yuav pib ntawm cov ntsia hlau, tab sis nws kuj tuaj yeem yog los ntawm kev pub noj, kev tswj lub rhaub dej, lub vijtsam thaiv, kev tuag, txias lossis tshem tawm tsis ruaj khov. Luam cov ntsia hlau ua ntej sib cais cov laj thawj no tuaj yeem tsim cov teeb meem tib yam hauv cov hlau tshiab.
Peb lub Hoobkas saib:Thaum ib qho kev nug hais tias tsuas yog "65 hli ntsia hlau rau LDPE zaj duab xis," peb nres ntawm qhov kos duab theem thiab nug cov ntaub ntawv cob qhia, sib piv, txheej, tso zis, ntsia hlau ceev, lub cev muaj zog, qhov ntev ntawm zaj duab xis thiab cov tsos mob tam sim no. Qhov no tsis yog cov ntaub ntawv rau nws tus kheej. Cov lus teb no txiav txim siab seb tus qauv geometry yuav tsum tau muab luam tawm, kho lossis hloov nrog lub tswv yim sib txawv.
Dab tsi Nanhaiya luam tawm rau nws ib leeg-ntsia hlau ntau yam
Nanhaiya uazaj duab xis ib-ntsia hlau nploojteev txheem diameters ntawm30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 90, 100, 120 thiab 150 mm. Nws muab25:1, 28:1, 30:1, 33:1 thiab 35:1raws li L / D cov ntaub ntawv thiab cov npe LDPE, LLDPE, HDPE, PP thiab PVC ntawm cov khoom siv. Nws kuj piav txog kev siv ntawm peb txheej coextrusion zaj duab xis kab.
Qhov davib-ntsia hlau qeb nploojluam tawm tsev neeg cov ntaub ntawv hauv qab no. Lawv pab tus neeg yuav khoom txheeb xyuas tus qauv kwv yees. Lawv tsis yog ib qho kev cog lus tias txhua qhov sib xyaw ua ke ntawm cov zis, nrawm, lub cev muaj zog thiab ntev siv rau kev tsim cov yeeb yaj kiab tshwj xeeb.
| Qauv | L/D | Tshaj tawm muaj peev xwm | Ntsia hlau ceev | Lub cev muaj zog | Center qhov siab |
|---|---|---|---|---|---|
| NWS 20 | 20: 1 | 3-5 kg / h | 10 mus rau 60 rpm | 1.1 / 1.5 / 2.2 kWs | 1000-1400 hli |
| NWS 25 | 25: 1 | 5-8 kg / h | 10 mus rau 60 rpm | 2.2 / 3.0 / 4.0 kW | 1000-1400 hli |
| NWS 30 | 25: 1 | 5-10 kg / h | 10 mus rau 60 rpm | 2.2 / 3.0 / 4.0 kW | 1000-1400 hli |
| NWS 45 | 25: 1-36: 1 | 10-120 kg / h | 10 mus rau 150 rpm | 5.5 rau 22 kW | 1000-1400 hli |
| NWS 65 | 25: 1-36: 1 | 60-300 kg / h | 20 mus rau 150 rpm | 22 rau 75 kW | 1000 hli |
| NWS 75 | 25: 1-36: 1 | 200-450 kg / h | 20 mus rau 150 rpm | 30 rau 132 kW | 1000 hli |
| NWS 90 | 25: 1-36: 1 | 180-600 kg / h | 20 rau 110 rpm | 30 rau 185 kW | 1000-1100 hli |
| NWS 120 | 25: 1-36: 1 | 320-1000 kg / h | 20 rau 90 rpm | 75 rau 280 kW | 1000-1250 hli |
| NWS 150 | 25: 1-36: 1 | 400-1300 kg / h | 20 rau 75 rpm | 90 rau 400 kW | 1000-1300 hli |
Source: Nanhaiya ib leeg-ntsia hlau nplooj nplooj, tshawb xyuas Lub Yim Hli 24, 2026. Lub peev xwm yog nyob ntawm daim ntawv thov. Paub meej tias qhov project specification ntawm daim duab pom zoo thiab hais lus.
Txog cov lus tshaj tawm tungsten:nplooj ntawv zaj duab xis-ntsia hlau hais tias cov ntsia hlau thiab flange tuaj yeem tau txais kev kho peb sab tungsten-alloy thiab muab cov lus hais txog kev hnav-tiv taus peb zaug. Peb kho qhov no raws li cov khoom siv-nplooj siv, tsis yog kev pabcuam-lub neej suav. Daim ntawv xaj yuav tsum txheeb xyuas thaj chaw kho mob, qhov system alloy, yuav tsum tau kuaj xyuas pov thawj thiab cov qauv kev lees paub. Feedstock, paug, clearance thiab kev khiav hauj lwm tej yam kev mob tseem cuam tshuam rau hnav.
Pib nrog cov khoom siv tiag tiag, tsis yog cov ntawv sau polymer
"LDPE" tsis piav txog ib tus cwj pwm ua haujlwm ruaj khov. Qib, molecular architecture, yaj ntws, ceev, additives thiab sib xyaw muaj pes tsawg leeg. Kev tshuaj xyuas ua haujlwm ntawm LLDPE, LDPE thiab lawv cov kev sib xyaw pom tau tias cov niam txiv cov khoom siv polymers thiab cov khoom sib xyaw ua ke cuam tshuam rau kev txiav thiab elongational rheology, uas yog qhov tseem ceeb hauv zaj duab xis tshuab. Tias yog vim li cas peb thiaj li thov rau tus neeg xa khoom, qib thiab kev tsim qauv es tsis yog xaiv los ntawm peb tsab ntawv resin lub npe ib leeg.
Sau cov yaj ntws nrog nws qhov kev kuaj mob
Melt flow rate yog qhov tseem ceeb, tab sis tus lej xav tau nws qhov kev sim thiab nws tsis sau tag nrho cov resin. Tam sim noASTM D1238-26Txoj kev npog cov dej ntws sim los ntawm extrusion plastometer. ASTM sau tseg tias cov ntaub ntawv ntws-tus nqi tuaj yeem pab tswj tau zoo thiab sib xws, thaum lwm yam khoom xav tau lawv tus kheej kev sib raug zoo. Hauv cov ntsiab lus siv tau: xa tus nqi, ntsuas kub thiab thauj khoom, tom qab ntawd ntxiv cov ntaub ntawv qib. Tsis txhob xaiv cov ntsia hlau los ntawm MFR ib leeg.
Piav qhia txog kev ua kom tiav
- Virgin-resin tsum thiab qib pes tsawg
- LDPE, LLDPE thiab HDPE sib xyaw feem pua
- Masterbatch, plam, antiblock, kev pab cuam thiab muab tub lim
- Recycled-cov ntsiab lus feem pua, qhov chaw, daim ntawv thiab variability
- Pellet bulk density, contamination thiab ya raws kev txhawj xeeb
Yog hais tias lub Hoobkas yuav tsum tau khiav ob peb formulations, npe rau ib txwm daim ntawv qhia, daim ntawv qhia nyuaj tshaj plaws thiab yuav ua li cas feem ntau changeovers tshwm sim. Ib tug tsim optimized rau ib qib ruaj khov yog ib qhov project sib txawv los ntawm ib tug ntsia hlau yuav tsum zam lub qhov rais ua hauj lwm dav.
Txhais cov khoom siv zaj duab xis thiab txhua txheej
Nanhaiya cov khoom nplooj ntawv teev cov hnab, cling zaj duab xis, ua liaj ua teb mulch zaj duab xis, ntim zaj duab xis, kua ntim zaj duab xis, shrink thiab stretch zaj duab xis, zoo li qub-tiv thaiv zaj duab xis, pas dej liner zaj duab xis thiab ntim hnyav ntawm cov ntawv thov. Cov khoom no tsis txwv qhov tseem ceeb zoo ib yam. Ib tus neeg yuav khoom yuav tsom mus rau qhov sib xws ntawm qhov muag thiab qhov ntsuas qhov ntsuas qhov ruaj khov. Lwm qhov yuav ua tau qhov tseem ceeb ntawm cov khoom tsim tawm, tawv tawv lossis lub peev xwm los ua cov khoom siv rov ua dua tshiab.
Rau cov kab mono-txheej txheem, muab cov qauv ua tiav thiab lub qhov rais ua haujlwm. Rau ABA lossis ABC kab, txhais txhua tus extruder cais. Cov tawv nqaij thiab cov khaubncaws sab nraud povtseg tuaj yeem siv cov ntaub ntawv sib txawv, cov ntsiab lus rov ua dua tshiab thiab cov khoom tso tawm. Peb tsis xav tias ib qho geometry yuav tsum tau theej rau hauv tag nrho peb lub thoob tsuas yog vim tias cov ntsia hlau diameters phim.
Peb lub Hoobkas saib:barrier thiab mixing seem yog cov cuab yeej, tsis yog cov cim xwm txheej. Yog tias cov kab mono-txheej txheej sau ib daim ntawv qhia ua pov thawj ntawm cov khoom tsim tawm me me, cov ntsia hlau zoo sib xws yuav yog qhov kev xaiv zoo dua thiab kev lag luam ntau dua. Peb pom zoo kom ua ntau qhov geometry tsuas yog thaum cov khoom siv ntau lossis cov txheej txheem melting thiab kev sib xyaw ua kom pom tseeb.
Txhais daim ntawv thov mus rau hauv cov duab geometry
Thaum cov resin, zaj duab xis thiab lub luag haujlwm ntawm lub tshuab ua kom pom tseeb, cov ntsia hlau tuaj yeem muab faib ua cov kev txiav txim siab uas tus engineer tuaj yeem tshuaj xyuas ntawm daim duab.
- Paub lub hnab ntawv.Cov ntaub ntawv nominal txoj kab uas hla, zoo ya davhlau ntev, zuag qhia tag nrho ntev, tsav-kawg kev twb kev txuas, ntsis thiab tuag-sab kev twb kev txuas, chim bore thiab muaj nyob nruab nrab qhov siab.
- Teeb lub luag haujlwm pub.Pellet form, bulk density, recycled flake and hopper or force- feeding arrangement cuam tshuam li cas cov khoom nkag mus rau hauv lub davhlau.
- Teem lub melting profile.Pub qhov tob, kev hloov pauv hloov pauv thiab kev txhim kho channel yuav tsum haum rau cov qauv thiab qhov muaj qhov ntev ntawm cov cua sov.
- Teem metering thiab homogenization.Tus qauv tsim yuav tsum xa cov yaj ruaj khov rau qhov screen thiab tuag yam tsis tau ntxiv ib qho kev sib xyaw uas siv lub siab tsis tsim nyog lossis cua sov.
- Xaiv cov khoom siv thiab qhov system.Match puag steel, nitriding los yog bimetallic tiv thaiv, thiab tej hardfacing rau hnav thiab corrosion mechanism.
- Pom zoo kam rau ua ib khub.Screw qhov ntev thiab chim bore yuav tsum tau soj ntsuam ua ke. Ib lub hau ntswj tshiab ua haujlwm nyob rau hauv ib lub thoob hnav tuaj yeem tso tawm ntau dhau.
Rau kev sib piv sib sib zog nqus ntawm cov ntsiab lus melting, saibbarrier vs pav vs mixing ntsia hlau geometry. Rau qhov kev hloov pauv, siv cov ntsuas ntsuas hauv pebhloov ib leeg-ntsia hlau specification qhia.
Sib piv cov xwm txheej ua yeeb yaj kiab- tshuab rau qhov kev txiav txim siab
| Kev tsim khoom | Qhov peb yuav txheeb xyuas ua ntej | Tsim kev taw qhia los ntsuas | Dab tsi los xav |
|---|---|---|---|
| Stable mono-txheej zaj duab xis nrog ib qib pov thawj | Cov zis uas twb muaj lawm, yaj kub, lub cev muaj zog load thiab geometry tam sim no | Khaws ib qho yooj yim, pov thawj qhov rais qhov twg ua tau | Ib ntu barrier yuav zoo dua |
| LLDPE-nplua nuj sib tov los yog nyuaj melting tsis txaus siab | Cov qib tseeb, sib xyaw piv, rpm, rhaub profile, siab thiab tsis muaj pov thawj | Txheeb xyuas qhov ntev ntawm melting, barrier tswvyim los yog tswj kev sib xyaw | Ntau compression ib leeg yuav daws tau nws |
| Cov ntsiab lus siab siv dua | Flake los yog pellet daim ntawv, bulk ntom, paug, noo noo thiab daim ntawv qhia variability | Saib xyuas kev noj zaub mov ruaj khov, hnav thaj chaw, pom thiab ua haujlwm qhov rai | Harder steel kho cov khoom tsis sib xws |
| Nyias zaj duab xis ntawm cov zis ntau dua | Cov zis tshwj xeeb, yaj qhov kub thiab txias, siab stability, tsav npoo thiab txias txwv | Sib npaug sib npaug nrog yaj uniformity thiab lub sijhawm nyob | Tus nqi tshaj tawm kg/h yog siv rau qib no |
| Peb txheej coextrusion | Daim ntawv qhia thiab tso zis sib faib ntawm txhua txheej | Qhia txhua tus extruder thiab txheej ntawm nws tus kheej | Kev sib tw diameters yuav tsum tau sib piv geometry |
| Thickness variation los yog npuas instability | Pub, cua sov thiab sensors, tshuaj ntsuam, tuag, cua nplhaib thiab nqa-up | Hloov cov ntsia hlau tsuas yog tom qab qhov chaw raug rho tawm | Txhua qhov kev ua yeeb yaj kiab tsis zoo pib hauv cov ntsia hlau |
Peb lub Hoobkas saib:thaum tus neeg yuav khoom qhia txog qhov txawv txav, peb tsis tam sim muab "zoo dua" ntsia hlau. Peb xub nug seb cov zis thiab lub cev muaj zog load hloov pauv, seb lub siab yaj puas ruaj khov, thiab yuav ua li cas tshwm sim ntawm lub nplhaib tuag thiab cua. Yog tias cov ntaub ntawv pov thawj taw qhia sab nraud ntawm lub hau thiab lub thoob, hloov geometry tuaj yeem siv nyiaj txiag tsis tau tshem tawm qhov laj thawj.
Rau cov haujlwm hloov pauv, tshuaj xyuas lub thoob ua ntej luam cov ntsia hlau
Ib qho qauv hnav tuaj yeem khaws cia qhov kev sib txuas ntawm kev tsav tsheb thiab kev npaj tag nrho, tab sis nws tsis cia siab rau khaws cia lub dav hlau qub lossis tshem tawm. Ntsuas lub chim bore raws nws ua hauj lwm ntev thiab sau cov ntsia hlau davhlau diameters ntawm ib cheeb tsam. Tsis tas li ntawd sau ntawv qhov twg hnav, qhab nia, corrosion los yog cov khoom tsim muaj concentrated.
Yog hais tias lub thoob yog hnav dhau qhov kev npaj tshem tawm, lub hau ntswj tshiab ib leeg tseem tuaj yeem ua haujlwm nrog ntau dhau. Tshawb xyuas peb cov lus qhia ntawmntsuas cov ntsia hlau thiab lub thoob hnavthiabkev txiav txim siab seb puas yuav hloov cov ntsia hlau nkaus xwb lossis cov khub sib tw.
Nanhaiya cov khoom siv nplooj ntawv tseem tshaj tawm 0.02 hli drilling thiab milling qhov chaw raug thiab piav qhia txog kev drilling, reaming thiab chamfering kom txo tau qhov yuam kev reclamping. Nws hais tias tsib-axis machining yog siv rau kev ya davhlau tsis xwm yeem thiab flanges tshwj xeeb. Cov no yog lub Hoobkas muaj peev xwm siv tau. Qhov ntev thiab cov ntsiab lus tshuaj xyuas uas tswj ib tus neeg txiav txim yuav tsum tseem tshwm sim ntawm daim duab pom zoo.
Zaj duab xis- tshuab ib leeg-ntsia hlau RFQ daim ntawv tshuaj xyuas
Cov lus hais muaj txiaj ntsig pib nrog cov pov thawj. Xa ntau qhov chaw hauv qab no kom ntau li ntau tau:
- Resin chaw tsim tshuaj paus thiab qib pes tsawg
- MFR lossis MVR tus nqi nrog qhov kub thiab txias
- Muab cov feem pua thiab cov qib masterbatch
- Recycled cov ntsiab lus, daim ntawv thiab qhov chaw variability
- Mono-layer, ABA lossis ABC qauv
- Cov khoom thiab cov khoom tso tawm sib faib rau txhua txheej
- Zaj duab xis hom, layflat dav thiab thickness ntau
- Ib txwm thiab siab tshaj tawm cov hom phiaj
- Screw txoj kab uas hla, L / D thiab tag nrho ntev
- Lub cev muaj zog, gearbox piv thiab rpm ntau
- Kev ntsuas lub thoob-bore thiab cua sov layout
- Screen changer, tuag thiab txias cov ntaub ntawv
- Dimensioned duab ntawm ob qhov kawg kev sib txuas
- Cov duab thiab kev ntsuas ntawm cov khoom hnav
- Tam sim no melt siab, kub thiab load
- Cov lus piav qhia meej ntawm qhov teeb meem ntau lawm
Yog tias qee qhov chaw tsis muaj, qhia meej meej. Kev paub qhov sib txawv tuaj yeem tswj tau. Tus nqi kwv yees tuaj yeem nkag mus rau hauv daim duab thiab dhau los ua qhov yuam kev machining kim.
Cov lus nug uas nquag nug
Puas yog LDPE, LLDPE thiab HDPE xav tau cov yeeb yaj kiab sib txawv?
Lawv ua tau. Polymer tsev neeg ib leeg tsis txaus los qhia qhov txawv. Cov qib resin pes tsawg, yaj ntws tus nqi thiab ntsuas qhov ntsuas, qhov ntom ntom, qhov sib xyaw sib xyaw, cov khoom siv ntxiv, cov ntsiab lus rov ua dua tshiab, cov phiaj xwm tso tawm thiab cov qauv zaj duab xis tag nrho cuam tshuam rau kev txiav txim siab tsim.
Cov ntaub ntawv dab tsi kuv yuav tsum xa tuaj rau cov lus hais txog zaj duab xis tshuab tshuab?
Xa cov khoom siv cob thiab qib, kev tsim thiab sib xyaw feem pua, hom yeeb yaj kiab, qhov dav thiab tuab, lub hom phiaj tso tawm, mono-txheej lossis coextrusion qauv, ntsia hlau txoj kab uas hla thiab L / D, lub cev muaj zog, ntsia hlau-ceev ntau yam, kos duab, thiab piav qhia meej txog cov teeb meem kev tsim khoom tam sim no.
Puas yog ib qho thaiv los yog sib xyaw cov ntsia hlau ib txwm zoo dua rau cov tshuab cua tshuab?
Tsis yog. Ib txoj kab ruaj khov mono-txheej txheej uas khiav ib qho nqaim ntawm cov ntaub ntawv paub yuav tsis xav tau ntau qhov geometry. Barrier lossis mixing seem yuav tsum daws qhov teeb meem melting los yog homogenization, tsis yog ntxiv rau kev muag khoom.
Dab tsi L / D piv yuav tsum siv cov yeeb yaj kiab tshuab tshuab?
Nanhaiya's zaj duab xis-ntsia hlau nplooj sau 25: 1, 28: 1, 30: 1, 33: 1 thiab 35: 1 raws li kev xaiv siv. Qhov kev xaiv raug tseem nyob ntawm cov resin, tso zis, muaj tsav, chim cua sov, tshuab layout thiab yuav tsum tau yaj zoo.
Puas yog ib tus ntsia hlau kov cov nkauj xwb thiab cov khoom siv polyethylene siv dua tshiab?
Tej zaum, tab sis cov kwj siv rov ua dua yuav tsum tau piav qhia. Variability, paug, muab tub lim, noo noo thiab bulk ntom tuaj yeem hloov kev noj, hnav thiab yaj stability. Ib qho tawv tawv ib leeg tsis kho cov khoom noj tsis sib xws.
Puas yog tib cov lus qhia tshwj xeeb tuaj yeem muab luam tawm thoob plaws txhua txheej ntawm peb txheej tshuab cua tshuab?
Tsis tau. Txhua tus extruder yuav khiav ib qho kev sib txawv, tso zis sib faib thiab ua haujlwm. Qhia meej rau A, B thiab C txheej nyias ua ntej txiav txim siab seb puas muaj geometry tuaj yeem sib koom.
Xa Nanhaiya koj daim ntawv thov ua yeeb yaj kiab
Nanhaiyayog tsim nyob rau hauv 2014 thiab muab kev cai ntsia hlau tsim, alloy tshuaj tsuag vuam thiab ntsia hlau manufacturing nyob rau hauv Zhoushan, Zhejiang, Suav teb.
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Qhov chaw kuaj xyuas
- Nanhaiya, LDPE thiab HDPE zaj duab xis ib leeg ntsia hlau. Cov khoom lag luam, daim ntawv thov thiab cov duab tuav.
- Nanhaiya, ib leeg ntsia hlau qeb. Tshaj tawm tsev neeg theem qauv rooj, cov ntaub ntawv thiab kev siv.
- Nanhaiya, cov khoom siv ntau lawm. Tshaj tawm machining peev xwm thiab lub Hoobkas duab.
- Nanhaiya, hais txog peb. Tuam txhab keeb kwm thiab kev tsim khoom lag luam.
- ASTM D1238-26. Standard test method thiab teev qhov tseem ceeb ntawm cov ntaub ntawv melt-flow-rate.
- Yamaguchi, M. et al.,"Rheology ntawm LLDPE, LDPE thiab LLDPE / LDPE sib xyaw thiab nws qhov cuam tshuam rau cov txheej txheem tshuab tshuab", Polymer International, 2000.
Kev Ceeb Toom: Cov ntawv tshaj tawm lub vev xaib yog cov lus xaiv xaiv. Qhov kawg geometry, cov khoom siv, kev kho mob, kam rau ua, kev tshuaj xyuas thiab cov nqe lus lag luam yog tswj los ntawm kev pom zoo kos duab, hais lus thiab daim ntawv cog lus yuav khoom.
