Polyester filament ntau lawm txheej txheem nrog rau kev nce qib ntawm machinery manufacturing technology thiab chemical processing technology, kev loj hlob sai, ntau yam. Raws li cov spinning ceev yuav muab faib ua cov pa spinning txheej txheem, nruab nrab-ceev spinning txheej txheem thiab high-speed spinning txheej txheem. Raws li cov ntaub ntawv raw polyester tuaj yeem muab faib ua yaj ncaj qha spinning thiab nti spinning. Direct spinning txoj kev yog yaj nyob rau hauv lub polymerization kettle ncaj qha xa mus rau spinner rau spinning; hlais spinning txoj kev yog cov txheej txheem polycondensation ntawm polyester yaj los ntawm casting, txiav thiab ziab ua ntej spinning, siv cov ntsia hlau extruder yuav yaj rau hauv yaj thiab ces spinning hlais. Raws li tus txheej txheem ntws muaj peb-kauj ruam txoj kev, ob-kauj ruam txoj kev thiab ib-kauj ruam txoj kev.
1. Pa spinning txheej txheem
Pa spinning, tseem hu ua low-speed spinning, yog qhov ntxov tshaj plaws industrialized zus tau tej cov txheej txheem. Spinning winding stretching twisting ib tug cuav twist deformation (UDY-DY-TY) ntawm peb-kauj ruam txoj kev. Spinning ceev ntawm 100O ~ 1500m / min, stretching thiab twisting ceev ntawm 600 ~ 1100m / min, dag-twist deformation ceev ntawm 120 ~ 160m / min, post-processing stretch lub sij hawm ntawm 3.5 ~ 4.2 zaug (tsis tseeb-twist deformation ua ntej ua) . Nws tuaj yeem tig 33-167dtex filament.
Pa spinning tuaj yeem tsim tau ob qho tib si ncab thiab deformed txhob lo lo ntxhuav, uas yog tus cwj pwm los ntawm cov cuab yeej paub tab, cov khoom siv ruaj khov ua haujlwm, yooj yim rau kev siv thev naus laus zis, cov khoom lag luam zoo dua thiab zoo dyeing uniformity. Deformation ntawm txhob lo lo ntxhuav M (M txhob lo lo ntxhuav rau kev ntsuas deformation ntawm txhob lo lo ntxhuav thiab qauv deformation ntawm cov xim haum txawv nyob rau hauv ib nrab ntawm ib tug ib txwm dyeing txhob lo lo ntxhuav) mus txog 96%. Tab sis cov txheej txheem yog ntev, tsis tshua muaj ntau lawm efficiency.
2. Nruab nrab-ceev spinning txheej txheem
Nruab nrab-ceev spinning yog ob-kauj ruam txheej txheem. Spinning ceev ntawm 1800 ~ 2500m / min, zus tau tej cov semi-pre-orientation silk (MOY). Medium-speed spinning muaj ob txoj hauv kev.
1, MOY-DY txheej txheem
Cov txheej txheem no siv nruab nrab ceev spinning thiab qis ceev ncab. Spinning ceev ntawm 1800 ~ 2500m / min, stretching twisting ceev ntawm 800 ~ 1200m / min, yuav spun 33 ~ 167dtex stretching silk, feem ntau 75dtex thiab 50dtex. nws cov khoom tsim tau qis dua qhov kev kub ceev spinning, cov khoom zoo yog phem dua li cov pa spinning.
2, MOY-DTY txheej txheem
Cov txheej txheem no siv nruab nrab-ceev spinning, high-speed stretching deformation, MOY ntxiv stretch multiples ntawm 2.1 ~ 2.4 zaug, stretching deformation ceev ntawm 400 ~ 500m / min, yuav spun 55 ~ 88dtex deformation ntawm cov lo lo ntxhuav, ntau tshaj 110dtex yuav tsum tau muab ob lub strips ntawm lo lo ntxhuav rau hauv ib lub raj. Cov khoom tsim tau thiab cov khoom zoo ntawm cov txheej txheem no tsis zoo li POY-DTY txheej txheem.
3. Kev kub ceev spinning txheej txheem
Kev kub ceev spinning muaj qhov nrawm nrawm ntawm 3000 txog 3600 m / min los tsim cov xov paj ua ntej (POY). Muaj peb txoj hauv kev rau kev kub ceev spinning.
1, POY-DTY txheej txheem
Cov txheej txheem no tau txais kev kub ceev spinning thiab high-speed stretching thiab deformation, uas yog ib tug raug ob-kauj ruam txheej txheem txoj kev, thiab nws yog cov txheej txheem txoj kev uas tsim cov deformed txhob lo lo ntxhuav feem ntau tam sim no.
Tom qab ua tiav qhov nrawm ntawm POY feem ntau yog 400-800m / min, thiab nws tuaj yeem tig 50-167dtex deformed yarn (DTY). Nws yog tus cwj pwm los ntawm cov txheej txheem luv luv, kev ua haujlwm siab ntau lawm thiab kev nqis peev tsawg hauv kev tsim kho vaj tse. POY tuaj yeem khaws cia rau lub sijhawm ntev thiab thauj mus los ntev; DTY yog qhov zoo heev.
2, POY-TY txheej txheem
Cov txheej txheem no siv cov kev kub ceev spinning, qis-ceev tsis tseeb-twisting deformation (rotor-type false-twisting method), tuaj yeem spun 111 mus rau 167dtex deformed txhob lo lo ntxhuav. Cov txheej txheem no nyob rau hauv technical thiab economic tsis tsim nyog.
3, POY-DY txheej txheem
Cov txheej txheem no tau txais kev kub ceev spinning thiab qis-ceev ncab twisting, thiab tuaj yeem spin stretch yarns ntawm 55 mus rau 110 dtex. Lub stretch ratio yog 1.3 mus rau 1.7 lub sij hawm, siv lub dav stretch twisting tshuab. Kev ua tau zoo ntawm DY tsim los ntawm cov txheej txheem no tsis zoo li ntawm UDY.
4. Spinning thiab stretching ib-kauj ruam txheej txheem
Cov txheej txheem no siv ob txheej txheem ntawm spinning thiab stretching nyob rau hauv ib tug spinning thiab stretching ua ke tshuab, uas yog ib tug txheej txheem ib kauj ruam. Muaj ob hom txheej txheem ntau lawm, ib qho yog spinning ceev ntawm 900 ~ 1500m / min, stretching ceev ntawm 3200 ~ 4000m / min, stretch ratio ntawm 3.5 zaug, yuav spun 55 ~ 165dtex stretching filament; lwm yam spinning ceev ntawm 2600 ~ 3500m / min, stretching ceev ntawm 5100 ~ 5500m / min. Cov filament tsim los ntawm cov txheej txheem no hu ua FDY.
5.Lwm cov txheej txheem spinning
Polyester filament ntau lawm txheej txheem ntxiv rau saum toj no, muaj cov txheej txheem ntau lawm cov xov paj (HOY) thiab siab crystalline xov paj (HCY) txheej txheem ntau lawm.
High Orientation Yarn (HOY) kuj tseem hu ua yarn tag nrho taw qhia. Cov txheej txheem no siv ib kauj ruam ultra-high-speed spinning, spinning winding ceev ntawm 5500 ~ 6000 m / min. Vim muaj qhov nce ntau hauv lub nozzle stretching, fiber ntau orientation zoo heev, tab sis cov crystalline hais, amorphous cheeb tsam ntawm low orientation, fiber dyeing kev ua tau zoo dua, tab sis lub elongation loj heev (kwv yees li 40%), txawm tias lub winding ceev mus. 7000 ~ 8000 m / min, qhov elongation tseem yog txawm tias qhov winding ceev tau nce mus rau 7000-8000m / min, qhov elongation tseem tsis tuaj yeem ua tau raws li cov kev cai dav dav, thiab tseem nyob rau theem kev sim ntau lawm.
Highly crystallized yarn (HCY) yog tsim los ntawm ib-kauj ruam txoj kev ntawm kev kub ceev spinning thiab kub yeeb nkab stretching. Nyob rau hauv cov txheej txheem high-speed spinning zoo tib yam, nyob rau hauv fiber ntau solidification pawg ntawm cov roj ua ntej ntxiv ib feem ntawm cov yeeb nkab cua sov, los ntawm cov cua kub yuav rhuab mus rau lub filament saum lub iav hloov kub (hauv qab lub softening point), yog li ntawd. lub solidification ntawm filament nyob rau hauv lub coiling traction nyob rau hauv qhov kev txiav txim ntawm ntxiv stretching.
Ntau cov yam ntxwv ntawm polyester filament yarn
Spinning, stretching thiab deformation ua ntawm polyester filament yarns yog nqa tawm ntawm tus kheej spindles. Thaum cov txheej txheem tom qab ua tiav cov txheej txheem yav dhau los, txawm hais tias qee qhov kev tsis txaus tuaj yeem txhim kho lossis them nyiaj los ntawm kev kho cov txheej txheem tom qab, qee qhov kev tsis txaus tsis tsuas yog tsis tuaj yeem them rov qab, tab sis kuj tseem tuaj yeem nthuav dav, xws li qhov sib txawv. nruab nrab ntawm cov ingots. Yog li ntawd, txo qhov sib txawv ntawm txoj haujlwm spindle yog tus yuam sij kom ntseeg tau qhov zoo ntawm filament. Nrog rau txoj kev loj hlob ntawm spinning technology, polyester filament ntau lawm muaj cov nram qab no cov yam ntxwv ntau lawm.
1, Siab ntau lawm ceev
Nrog rau kev tsim cov tshuab filament ntau lawm, spinning ceev tau nce siab dua, thiab tam sim no feem ntau ntawm lawv tau mus txog 3500m / min. Spinning ceev nce, cov txheej txheem, khoom siv, kev ua haujlwm thiab lwm yam muab tso rau pem hauv ntej kom siab dua.
2, Lub peev xwm loj ntawm yob loading
Lub net hnyav ntawm coiled txhob lo lo ntxhuav lub tog raj kheej yog nce los ntawm 3 ~ 4kg mus rau 15kg, thiab cov deformed txhob lo lo ntxhuav lub tog raj kheej yog nce los ntawm 1 ~ 2kg mus rau 5kg. qhov nce ntawm coiling muaj peev xwm muab tso rau pem hauv ntej cov kev cai tshiab ntawm lub coiling mechanism, uniformity ntawm lub tog raj kheej txhob lo lo ntxhuav zoo, thiab cov packing thiab kev thauj mus los ntawm lub tog raj kheej.
3, Cov khoom siv raw khoom zoo yuav tsum
Qhov zoo ntawm polyester raw khoom yog ze ze rau qhov spinnability ntawm filament thiab cov khoom zoo. Ntxiv rau qhov yuav tsum tau ua ntawm cov ntsuas zoo ntawm daim hlais - cov yam ntxwv viscosity, softening point, diethylene glycol cov ntsiab lus, carboxyl cov ntsiab lus, tshauv thiab cohesive hais tsim nyog, tib lub sij hawm, qhov tsos ntawm daim duab daim, muaj los yog tsis muaj. ntawm cov pa roj carbon dub, kev faib tawm ntawm cov txheeb ze molecular loj, cov ntsiab lus noo noo ntawm spinning kuj yog ib qho kev cuam tshuam zoo rau lub zog spinning, tshwj xeeb tshaj yog cov ntsiab lus noo noo ntawm high-speed spinning ntawm txhob lo lo ntxhuav muaj kev cuam tshuam ntau dua rau cov kev xav tau ntawm cov khoom siv. hlais cov dej thaum ub tsis ntau tshaj 30 ~ 50 ppm. Cov dej ntsiab lus ntawm cov hlais yuav tsum tsis txhob ntau tshaj 30 ~ 50ppm, thiab cov khoom siv raw yuav tsum ncav cuag qhov ntsuas qhov zoo, ua kom zoo ib yam thiab zoo ib yam, thiab qhov zoo ntawm cov hlais yuav tsum ruaj khov thiab zoo ib yam los ntawm batch mus rau batch.
4, nruj txheej txheem tswj
Filament ntau lawm yuav tsum muaj cov txheej txheem nruj heev. Piv txwv li, lub melting kub nce thiab down fluctuations ntawm tsis ntau tshaj ± 1 degree, sab ntawm cov cua tshuab cua ceev sib txawv ntawm tsis ntau tshaj 0.1m / s, lub spinneret yuav tsum tau txhua txhua hnub shovel phaj nto. Kev ua haujlwm rau pej xeem (xws li dej, roj, ncu, hluav taws xob) kuj muaj qhov xav tau siab.
5. Yuav tsum muaj tag nrho cov kev tswj kom zoo
Filament ntau lawm yog ib tug ntau spindle, ntau lub tshuab sib dhos kab ua haujlwm, kev ua haujlwm tsis tu ncua, kev siv zog ntau, kev tswj xyuas kev ua haujlwm zoo lossis tsis zoo thiab kev sib raug zoo ntawm cov filament zoo heev. Txhawm rau kom ntseeg tau cov khoom zoo, nws yog ib qho tsim nyog yuav tsum ua raws li kev tswj hwm zoo thiab tsim kom muaj kev ruaj ntseg zoo.
6, qhov yuav tsum tau muaj kev soj ntsuam zoo, ntim, cia thiab kev thauj mus los ua haujlwm
Txhawm rau kom ntseeg tau qhov zoo ntawm cov filament, txhua batch ntawm raw cov ntaub ntawv yuav tsum tau kuaj nws lub cev ntsuas, lub winding raj yuav tsum tau kuaj ib tug los ntawm ib tug tsos ntawm tsis xws luag, cov tiav txhob lo lo ntxhuav dyeing zog yuav sampling los yog tag nrho cov kev xeem, ntim txheej txheem, txawv specifications tsis tuaj yeem sib xyaw hnab. Tsis tas li ntawd, peb yuav tsum tau xyuam xim rau kev khaws cia thiab kev thauj mus los ua haujlwm, khaws cia tsis tuaj yeem raug tshav ntuj thiab hmo ntuj, cov thawv ntim khoom tsis tuaj yeem siab dhau, kev thauj khoom thiab kev thauj mus los yuav tsum muaj lub teeb pom kev zoo, thauj mus los kom tsis txhob muaj pob ntau li ntau tau.