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Polyethylene bututu masana'antu tsari ne extrusion hanya don granular kayan da aka shigo da a cikin extruder da zafi.

Samar da bututun polyethylene

Ana sarrafa kayan ta hanyar dunƙule (spiral sanda) don turawa sannan a fitar da shi daga extruder zuwa cikin mold.Abincin da aka dafa bayan barin gyaggyarawa, giciye calibrator da matsa lamba na tanki suna da siffa yadda ya kamata.Bayan fitowar bututun calibrator ta hanyar yadudduka na kwararar ruwa yana sanyaya.
Babban zafin jiki narkakkar polyethylene tank bayan cire daga mold a sarari sa'an nan a hankali sanyaya tankuna an rage ta amfani da ruwan sanyi.
takamaiman ma'auni da yanke.
Duk tsarin samarwa yana da cikakken sarrafa kansa ta na'urori waɗanda ke sarrafawa da saka idanu ingancin samfurin ƙarshe abin karɓa ne kuma sunan kamfani da ƙa'idodi.
Na yau da kullun yana gwada samar da bututun polyethylene
Rukunin gwajin samar da bututun PE sune kamar haka:
Indexididdigar kwararar narkewa (INSO 6980-1)
Ƙayyade yawa (INSO 7090-1)
Ƙaddamar da soot (ISO 6964)
Rarraba soot (ISO 18553)
Gwajin Tensile (ISO 6259-1,3)
Gwajin matsin lamba na Hydrostatic (ISIRI 12181-1,2)
Gwajin matsin lamba (ASTM D 1599)
Komawa gwajin thermal (INSO 17614)
Bututun gwajin gani da awo (INSO 2412)
Gwajin kwanciyar hankali na thermal a gaban oxygen OIT (ISIRI 7186-6)

Fihirisar kwararar narkewa (INSO 6980-1):
A cikin wannan gwajin, ana auna ƙimar narkewar kayan abu a ƙayyadadden lokaci da zafin jiki, zuwa sakamakon, yadda za a sarrafa kayan da ke cikin extruder ya kamata a yi la’akari da shi.
Gwajin albarkatun kasa (don tabbatar da ingancin kayan) da kuma akan samfurin.Ƙimar MFI na samfurin ba zai wuce 20% ± albarkatun kasa ba daban-daban MFI.
Ƙaddamar da yawa (INSO 7090-1)
An ƙididdige yawan kayan albarkatun ƙasa da hanyoyin ɗigon ruwa na samfur ta amfani da daidaitattun ma'aunin ruwa tare da wani ƙima."Yawan yawa na samfurin, ingancin tsarin samarwa.
Ƙaddamar da zoma (ISO 6964) da kuma rarraba soot (ISO18553)
Sot a cikin albarkatun kasa kuma an ƙaddara samfurin ƙarshe.
Adadin adadin baƙar fata na carbon a cikin bututun polyethylene 2 zuwa 5.2% nauyi wanda yakamata a rarraba shi daidai.

• Gwaji (ISO 6259-1,3)
Yin amfani da na musamman dakin gwaje-gwaje, da inji Properties na polyethylene bututu, ciki har da matsakaicin ƙarfi a kan waje load, da elongation a hutu, coefficient na elasticity da deflection karkashin lodi uku-aya za a iya auna kuma bisa ga sakamakon gwajin, za mu iya kimanta aikin samfurin yayin aiki.
• Gwajin matsin lamba na Hydrostatic (ISIRI 12181-1,2)
Don tantance ƙarfin samfurin akan gwajin matsi na hydrostatic ana gudanar da shi., sanya ƙarƙashin matsa lamba na ciki akai-akai.
Duk wani lahani a cikin samfuran (fatsawa, kumbura, kumburin gida, yayyafawa da fage mai kyau) don nufin samfurin ya gaza.
Gwajin fashewar fashewa (ASTM D 1599)
A cikin wannan gwajin, bututun samfurin da ke iyo a cikin wani tafki mai yawan zafin jiki na 23 ° C sannan a sanya shi a ƙarƙashin ƙarar matsa lamba na ciki, ta yadda bayan lokaci 60 zuwa 70, ya kumbura sannan ya haifar da fashewa.

Bututu ba tare da tsagewa ko kumbura tare da ramin tsayi ba mara lafiya ne don amfani.
Gwajin dumama baya (ISO 2505)
A m tsawon 20 cm samfurori a cikin daya, tare da zafi iska wurare dabam dabam (2 ± 110) ° C na daya zuwa uku hours (bisa ga bututu bango kauri), kuma bayan sanyaya shi ne irin tsawon na tube, zai zama kasa da Yanayin farko a yanayin zafi na al'ada, wanda zai iya haifar da canje-canje a cikin bututun hali da aka shigar a cikin zagaye na bututu, don haka gwajin da ke sama yana iyakance canje-canje na tsayi (har zuwa 3%) a cikin dakin gwaje-gwaje.

• bututun gwajin gani da awo (INSO 2412)
Dole ne bututun polyethylene su kasance marasa ƙarfi (ciki da na waje) da zurfafa pores.Ƙananan haƙarƙari idan ba su rage kauri zuwa ƙasa da iyaka ba, ba shi da komai.
Daidai nadi na bututu bango kauri ta amfani da ultrasonic kauri ma'auni calibrated calipers a yankan sashe a lokacin ƙaho.
An auna diamita na waje ta bututu ta amfani da maƙallan ƙarfe masu daraja (Sykrvmtr) kuma tare da reshe an auna kuma an ba da rahoton matsakaicin ƙimar.