Lub taub hau extrusion ntawm PE yeeb nkab khoom yog ib feem tseem ceeb ntawm cov extrusion molding ntau lawm kab. Nws txoj haujlwm yog txhawm rau txuas ntxiv thiab ua kom cov plasticized yaj, hloov nws mus rau hauv lub voj voog ntu ntu ntws, thiab txias rau hauv lub raj khoob. Muaj peb hom yeeb nkab extrusion tuag: ncaj-dhau tuag, txoj cai-lub kaum tuag (tseem hu ua dabtsi yog khoov tuag) thiab sab tuag (sab tuag). Ntawm cov kav dej yas, cov kav dej PE muaj qhov tso zis ntau tshaj plaws thiab yog cov khoom siv dav tshaj plaws, ntawm cov kav dej PE nyuaj suav txog 75 feem pua thiab cov kav dej PE muag rau 25 feem pua. Hauv qab no yog ib qho kev qhia ntxiv rau PE yeeb nkab taub hau.
1. Ncaj nraim ntawm lub tshuab taub hau
Lub axis ntawm pwm coincides nrog lub axis ntawm extruder, thiab muaj qhov zoo ntawm cov qauv yooj yim, yooj yim siv, tsis tshua muaj nqi, thiab cov khoom me me ntws tsis kam. Hom lub taub hau no muaj qee qhov tsis zoo, xws li qhov nyuaj rau cua sov lub mandrel, thiab lub zog qis ntawm cov yeeb nkab ntawm lub seam tshwm sim los ntawm shunt bracket. Thaum tsim cov kav dej nrog loj sab nraud diameters thiab qhov ntau thiab tsawg. Nws tuaj yeem pom los ntawm cov qauv ntawm cov dej ntws uas cov kua dej yuav tsum tau mus dhau ntau theem xws li kev khiav tawm, compression, ntws stabilization, thiab shaping. Thaum nws dhau los ntawm pwm, ntawm no, L yog qhov ntev ntawm qhov ncaj ntawm pwm, L2 yog qhov ntev ntawm qhov compression, thiab L yog qhov sib txawv ntawm lub khob hliav qab.
2. Txoj cai lub qhov ntswg
Lub mandrel kawg ntawm cov qauv no yog kev txhawb nqa kawg. Txij li thaum tsis muaj qhov sib cais bracket, cov yaj ntawm lub taub hau kawg nkag mus rau sab nraud ntawm lub mandrel thiab pas dej, uas tsuas yog tsim cov kab seam. Ntxiv nrog rau cov kav dej, lub kaum sab xis pwm tuaj yeem tsim cov khoom siv hlau thiab cable, uas muaj qhov zoo ntawm cov cua sov yooj yim ntawm mandrel thiab tsim nyog rau extruding kav los ntawm cov khoom siv PE yeeb nkab nrog txoj kab uas hla txoj kab uas hla. Txawm li cas los xij, kuj tseem muaj qhov tsis zoo xws li cov qauv tsim, nyuaj mandrel tsim, tus nqi tsim khoom siab, thiab cov khoom siv loj txaus.
3.s nos
Cov khoom ntws los ntawm extruder thawj zaug ntws los ntawm qhov nkhaus ntws channel, tom qab ntawd nkag mus rau sab ntawm qhov tuag, qhwv ib ncig ntawm lub mandrel thiab tawm mus raws qhov axis ntawm qhov tuag. Qhov kev tsim no tuaj yeem tsis tsuas yog ua kom cov kev taw qhia extrusion ntawm cov yeeb nkab nyob rau ntawm txhua lub kaum sab xis nrog lub extruder, tab sis kuj yuav tsum tau mus rau qhov sib npaug ntawm cov ntsia hlau axis ntawm extruder, uas yog tsim rau high-speed extrusion ntawm cov kav dej loj. Txawm li cas los xij, cov qauv pwm yog qhov nyuaj thiab tus nqi siab.
4. Lwm hom taub hau
Lwm hom pe cov khoom siv lub taub hau muaj xws li sieve phaj extrusion hau, txheej hau, txheej hau, mandrel rotating hau, thiab lwm yam. Lub taub hau mandrel teb siv zoo tib yam polymer hais, tom qab plasticization thiab melting, ib tug tej yam ntev ntawm iav fiber yog tov online, yog li ntawd. tias cov molten molecules thiab iav fiber ntau yog spirally oriented raws phab ntsa ntawm lub raj extruded, yog li ua kom muaj zog dua. Cov kav dej ua tau raws li qhov xav tau ntawm kev ua haujlwm engineering.
