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Mokhoa oa ho etsa liphaephe tsa polyethylene ke mokhoa oa extrusion oa lisebelisoa tsa granular tse kenngoang kantle ho extruder le mocheso.

Ho hlahisa liphaephe tsa polyethylene

Thepa e ntan'o sebetsoa ka screw (spiral rod) hore e sutumetsoe ebe e ntšoa ho tsoa ho extruder ho ea hlobo.Lijo tse phehiloeng ka mor'a ho tloha hlobo, cross calibrator le vacuum tank pressure li bōpehile ka mokhoa o nepahetseng.Ha o tsoa ka holim'a calibrator tube ka mekhahlelo ea phallo ea metsi e pholile.
Mocheso o phahameng o qhibilihisitsoeng oa polyethylene tanka ka mor'a ho tlosoa hlobo ka vacuum 'me butle-butle litanka tse pholileng li fokotsehile ka metsi a batang.
litekanyo tse itseng le ho seha.
Ts'ebetso eohle ea tlhahiso e etsoa ka botlalo ka lisebelisoa tse laolang le ho hlokomela boleng ba sehlahisoa sa ho qetela se amoheleha mme lebitso la khampani le litekanyetso.
Liteko tsa tloaelo tlhahiso ea phala ea polyethylene
Mekhahlelo ea tlhahlobo ea tlhahiso ea lipeipi tsa PE ke tse latelang:
Melt flow index (INSO 6980-1)
Determining density (INSO 7090-1)
Boikemisetso ba mosili (ISO 6964)
Kabo ea mosili (ISO 18553)
Teko ea matla (ISO 6259-1,3)
Teko ea khatello ea Hydrostatic (ISIRI 12181-1,2)
Teko ea khatello ea ho phatloha (ASTM D 1599)
Khutlela tekong ea mocheso (INSO 17614)
Tekanyo le tšupu ea tlhahlobo ea pono (INSO 2412)
Teko ea botsitso ba mocheso ka pel'a OIT ea oksijene (ISIRI 7186-6)

Melt flow index (INSO 6980-1):
Tekong ena, tekanyo ea phallo ea thepa e qhibilihang e lekantsoe ka nako e tsitsitseng le mocheso, ho fihlela liphello, mokhoa oa ho sebetsana le thepa ka hare ho extruder e lokela ho nkoa.
Teko ea thepa e tala (ho netefatsa boleng ba thepa) hammoho le sehlahisoa.MFI boleng ba sehlahisoa ha ea lokela ho ba ho feta 20% ± thepa e tala e fapane le MFI.
• Ho tsebahatsa boima ba 'mele (INSO 7090-1)
The segokanyipalo ea lihlahisoa tse tala le sehlahiswa segokanyipalo flotation mekhoa sebelisa e nepahetseng mokelikeli ho leka-lekana le segokanyipalo itseng e ikemiselitse."Palo ea boima ba sehlahisoa, boleng ba ts'ebetso ea tlhahiso.
• qeto ea mosili (ISO 6964) le kabo ea soot (ISO18553)
Soot ka thepa e tala 'me sehlahisoa sa ho qetela se khethoa.
Peresente e dumelletsweng ya carbon black phaepheng ya polyethylene boima ba 2 ho isa ho 5.2% e lokelang ho ajwa ka ho lekana ho phatlalla le yona.

• Teko (ISO 6259-1,3)
U sebelisa laboratori e ikhethileng, thepa ea mochini oa liphaephe tsa polyethylene, ho kenyelletsa matla a phahameng khahlano le mojaro o kantle, bolelele nakong ea khefu, coefficient of elasticity le deflection tlasa meroalo ea lintlha tse tharo e ka lekanyetsoa mme ho latela liphetho tsa tlhahlobo, re ka lekola tshebetso ya sehlahiswa nakong ya tshebetso.
• Teko ea khatello ea Hydrostatic (ISIRI 12181-1,2)
E le ho hlahloba matla a sehlahisoa khahlanong le teko ea khatello ea hydrostatic e etsoa., e behiloeng tlas'a khatello e sa khaotseng ea ka hare.
Phoso efe kapa efe disampole (ho petsoha, ho kokomoha, ho ruruha ha sebaka, ho dutla le mapetso a matle) ho bolela hore sehlahisoa se hlolehile.
• Teko ea khatello ea ho phatloha (ASTM D 1599)
Tlhahlobong ena, mohlala, tube e phaphametseng ka letamong le mocheso o sa khaotseng oa 23 ° C ebe o kenngoa tlas'a khatello e ntseng e eketseha ea ka hare, e le hore ha nako e ntse e feta metsotsoana e 60 ho isa ho e 70, e ruruhe ebe e baka ho phatloha.

Tube e se nang mapheo kapa ho bulging ka sekotjana sa longitudinal ha e bolokehe ho sebelisoa.
• Teko ea ho futhumatsa ka morao (ISO 2505)
Bolelele ba lisampole tsa 20 cm ho e le 'ngoe, ka potoloho ea moea o chesang (2 ± 110) ° C bakeng sa hora e le' ngoe ho isa ho tse tharo (ho ea ka botenya ba lerako la phala), 'me ka mor'a ho pholile ke bolelele bo joalo ba tube, e tla ba tlase ho feta. boemo ba pele ka mocheso o tloaelehileng, e leng se ka lebisang ho liphetoho boitšoarong liphaephe hlomamisa phala pota, kahoo ka holimo teko moedi longitudinal liphetoho (ho fihlela ho 3%) ka laboratoring.

• tšupu ea tlhahlobo ea tekanyo le pono (INSO 2412)
Liphaephe tsa polyethylene li tlameha ho se be le mahlahahlaha (ka hare le ka holimo) le li-pores tse tebileng.Hanyenyane dents haeba ba u se ke ua fokotsa botenya ho ka tlaase ho moo moeli, ke e nyatsehang.
Tlhaloso e nepahetseng ea botenya ba lebota la liphaephe ho sebelisa ultrasonic thickness gauge calibrated caliper karolong ea ho itšeha nakong ea terompeta.
Bophara ba ka ntle ba tube bo sebelisa lihlopha tsa tšepe tse hlophisitsoeng (Sykrvmtr) le haufi le lekala le ile la lekanngoa 'me boleng ba karolelano bo tlalehoa.