Txoj Cai Ua Haujlwm ntawm Ob -Txheej Co-extrusion Blown Film Extruder
Lub hauv paus ntsiab lus tseem ceeb: Ob lub extruders ywj siab pub molten yas rau hauv ob- txheej co-extrusion tuag lub taub hau rau lamination. Qhov sib xyaw tubular yaj yog tshuab rau hauv cov yeeb yaj kiab npuas, txias, rub, flattened thiab thaum kawg raug mob. Tag nrho cov txheej txheem ua tiav melting, lamination thiab zaj duab xis tsim ntawm ob hom zoo tib yam lossis txawv plastics ib txhij.
1. Cov qauv tseem ceeb
Ob txheej txheej ntawm extrusion tshuab: Ib qho extruder rau txheej sab hauv thiab ib qho rau txheej txheej, muaj hopper, ntsia hlau, chim thiab cua sov rings.
Ob- txheej co-extrusion tuag lub taub hau: Cov ntsiab lus tseem ceeb. Nws yog nruab nrog ob chav sab hauv ntws raws los laminate ob txheej ntawm yaj thiab extrude lawv los ntawm lub annular tuag orifice.
Txias thiab npuas stabilizing chav tsev: Nruab nrog sab hauv thiab sab nraud cua txias cua rings thiab npuas stabilizers tswj lub npuas taub thiab txias ceev.
Rub thiab winding unit: muaj lub rooj tsavxwm herringbone, rub cov menyuam, kev tswj nruj thiab ob npaug - chaw nres tsheb winder.
2. Cov txheej txheem ua haujlwm
1. Raw khoom melting thiab plasticizing
PE, HDPE thiab lwm yam yas pellets rau sab hauv thiab sab nrauv yog cais pub rau hauv ob lub extruders. Nyob rau hauv cov ntsia hlau conveying thiab zoned cua sov (150-230 degree), cov ntaub ntawv yog tag nrho melted mus rau hauv uniform yaj, nrog impurities lim tawm.
2. Ob -txheej txheej txheej lamination (Cov kauj ruam tseem ceeb)
Ob kwj ntawm yaj ntws mus rau hauv ob- txheej co-extrusion tuag taub hau. Sab hauv- txheej yaj khiav los ntawm qhov nruab nrab ntws channel thaum sab nrauv- txheej yaj ntws raws cov channel sab nraud. Lawv yog concentrically laminated ntawm lub qhov hluav taws xob tuag los tsim ib ob - txheej tubular yaj yam tsis muaj kev sib xyaw, nthuav qhia qhov tseeb interface.
3. Zaj duab xis npuas tshuab
Compressed cua yog xa los ntawm qhov chaw ntawm lub taub hau tuag kom tshuab cov tubular yaj mus rau hauv ib zaj duab xis npuas. Kev sib xyaw ua ke sab hauv thiab sab nraud cua txias sai ua rau cov yeeb yaj kiab thiab tswj nws cov tuab.
4. Stabilization thiab rub
Cov npuas zaj duab xis yog stabilized los ntawm cov npuas stabilizer, ces folded rau hauv cov yeeb yaj kiab tiaj tus ntawm lub rooj tsavxwm herringbone. Cov zaj duab xis tiaj tus yog rub ntawm qhov nrawm nrawm los ntawm rub cov chais kom ncav cuag qhov xav tau tuab thiab dav.
5. Thickness nrhiav tau thiab winding
Ib qho ntawm -kab tuab ntsuas ntsuas cov yeeb yaj kiab tuab thiab ua rau kev hloov kho tsis siv neeg. Cov yeeb yaj kiab tiaj tiaj tiav yog ua tiav nrog kev tswj nruj thiab raug mob los ntawm ob - chaw nres tsheb winder rau hauv cov khoom yob.
3. Cov yam ntxwv tseem ceeb
Co-extrusion lamination: Ob txheej txheej ntawm cov yaj tseem nyob sib cais hauv lub taub hau tuag yam tsis muaj kev sib xyaw, ua kom muaj kev sib raug zoo ntawm lub ntsej muag.
Kev ua haujlwm synchronized: Cov zis thiab qhov kub ntawm ob lub extruders, nrog rau kev rub nrawm, yog qhov sib tw ua kom cov yeeb yaj kiab thickness sib txawv li ntawm 8%.
Material compatibility: Nws txhawb kev sib xyaw ntawm cov ntaub ntawv sib txawv (xws li HDPE & LLDPE, cov khoom siv nkauj xwb & cov khoom siv rov ua dua tshiab) kom ua tiav cov khoom siv zoo heev, kev sib khi thaum tshav kub kub thiab kev ua haujlwm tsis zoo.
4. Cov ntawv thov ib txwm
Zaub mov ntim zaj duab xis, kua ntim zaj duab xis, khw hnab zaj duab xis, ua liaj ua teb mulch zaj duab xis, composite puag zaj duab xis thiab lwm yam khoom yas zaj duab xis.
