Zaɓin geomembrane bisa tsari yana da alama na fasaha, amma zaɓi mara kyau yana nufin matsalolin shigarwa da rashin aiki mara kyau. Fahimci bambancin don tabbatar da cewa kun saka kayan da ya dace.
The main difference lies in how the sheet is formed. Blown film extrusion inflates molten polymer into a "bubble," ƙirƙirar takarda mai tsauri tare da daidaitaccen ƙarfi. Flat die extrusion yana jefa shi a kan rollers, yana samar da takarda mafi sassauƙa tare da sarrafa kauri mafi girma.
Hanyar masana'anta ba kawai daki-daki ba ne; yana bayyana ainihin kaddarorin jiki na geomembrane da yadda zai kasance yayin shigarwa da kuma tsawon rayuwar sabis. Ga masu shigo da kaya da masu sarrafa ayyuka, sanin bambancin shine mabuɗin don guje wa kurakuran ƙayyadaddun ƙima da kuma tabbatar da nasarar riƙewa na dogon lokaci. Bari mu fashe daidai yadda waɗannan manyan matakai biyu ke kwatanta da abin da ake nufi da aikin ku na gaba.
Menene Babban Bambancin Tsari Tsakanin Tsakanin Fim ɗin Blown da Flat Die Extrusion?
Yana da wuya a hango yadda miliyoyin pellet ɗin filastik suka zama layi. Idan ba tare da wannan mahallin ba, ba za ku iya fahimtar dalilin da yasa samfuran ƙarshe suka yi daban ba a fagen.
Blown fim extrusion narke polymer a cikin madauwari mutu, inflates shi a cikin wani babban kumfa, sa'an nan rushe shi a cikin takardar. Lebur mutu (ko simintin gyaran kafa) extrusion yana tura narke ta cikin fadi mai fadi, lebur kai tsaye kan abin nadi mai sanyi don samar da takardar.
Zurfafa Kallon Kanikanci
Hanyoyi guda biyu suna ƙirƙirar sifofin kwayoyin halitta daban-daban a cikin samfurin ƙarshe. The busa tsarin fim yana shimfiɗa kayan a cikin kwatance biyu (na'ura da juyawa) yayin da kumfa ta faɗaɗa, haifar da daidaitawar biaxial da mafi girman crystallinity saboda sannu a hankali, sanyaya tushen iska. Wannan lissafin sama da 80% na samar da geomembrane na duniya saboda ingancinsa wajen yin naɗaɗɗen nadi.
Sabanin haka, da lebur mutu tsari ya ƙunshi ɗan ƙaran daidaitawa yayin da narkakken takardar ke da sauri sanyaya a kan manyan naɗaɗɗen sanyi. Wannan saurin sanyaya yana haifar da ƙarin amorphous, ƙarancin tsarin crystalline. Tsarin ya fi sauƙi ta inji amma yana ba da iko na musamman akan girman samfurin ƙarshe na zahiri.
| Siffar | Blown Fim Fim | Flat Die (Cast) Extrusion |
|---|---|---|
| Ka'ida | Molten polymer "bubble" yana kumbura | Ana sanyaya takardar polymer narkakkar a kan rollers |
| Sanyi | A hankali (mai sanyaya iska) | Mai sauri (tuntuɓi tare da rolls na sanyi) |
| Gabatarwa | Biaxial (ƙarfin shugabanci biyu) | Mafi ƙanƙanta (mafi yawan shugabanci) |
| Crystallinity | Mafi girma | Kasa |
Ta yaya Tsarukan Kera ke Tasirin Ingantaccen Geomembrane, Kauri, da Ƙarfi?
Ingancin geomembrane mara daidaituwa zai iya lalata dukkan aikin ku. Raunan tabo ko kauri mai canzawa yana haifar da wahala mai wahala, ɗigogi, da gyare-gyare masu tsada waɗanda ke lalata manufar layin.
Flat mutu extrusion yana ba da iko mafi girma, sau da yawa a cikin ± 3% haƙuri, don daidaiton inganci da walda. Fim ɗin busa yana ba da daidaiton ƙarfin biaxial amma yana da juriya mai faɗi (har zuwa ± 10%), wanda zai iya tasiri rarraba damuwa da amincin weld.
Rushe Ayyukan Kasuwancin Ayyuka
Tasirin tsarin masana'antu yana ƙaddamar da kai tsaye zuwa aikin filin. Geomembrane da aka samar ta hanyar hanyar fim ɗin da aka busa yana da ƙarfi kuma ya fi karye saboda girman girmansa da crystallinity. Duk da yake yana ba da kyakkyawan ƙarfi, daidaiton ƙarfi, taga kunkuntar narkewar ta na iya sa ya zama ƙalubale don walda, musamman a lokacin sanyi.
Sabanin haka, geomembrane mai lebur ya fi sassauƙa, ductile, kuma yana da mafi kyawun kayan haɓakawa. Wannan taushin yana sa sauƙin ɗauka da waldawa a cikin yanayi daban-daban na filin kuma yana ba shi damar daidaitawa ga rashin daidaituwa ko daidaita daidaituwa ba tare da sanya damuwa mai yawa akan riguna ba.
| Dukiya | Fim ɗin Geomembrane | Flat Die Geomembrane |
|---|---|---|
| Kauri Uniformity | Ƙananan madaidaici (± 10% haƙuri ya zama gama gari) | Madaidaici sosai (± 3% ana iya yin haƙuri) |
| Sassauci / Ɗabi'a | Tauri, mai kara fashewa | Mai laushi, mafi ductile |
| Weldability | Ƙarin ƙalubale (tagar narkewa mai kunkuntar) | Mafi sauƙi (tagar narkewa mai faɗi, ƙarin gafara) |
| Juriya Crack Danniya | Gabaɗaya ƙasa saboda girman crystallinity | Gabaɗaya mafi girma saboda tsarin amorphous |
Fim ɗin Blown vs. Flat Die: Wanne Hanya Ya Fi Kyau don HDPE da LLDPE Geomembranes?
HDPE da LLDPE resins suna da kaddarorin da suka bambanta. Zaɓin tsarin masana'anta da bai dace ba zai iya ƙin fa'idar polymer, yana haifar da rashin ƙarfi da gazawar da ba zato ba tsammani.
Duk hanyoyin biyu suna aiki don HDPE da LLDPE. Fim ɗin busa ya zama ruwan dare don ƙirƙirar ƙaƙƙarfan ƙarfi, HDPE mai ƙarfi. Flat mutu extrusion yana haifar da mafi sassauƙa HDPE, wanda galibi shine mafi kyawun shigarwa da sarrafa damuwa na thermal, yayin haɓaka sassaucin yanayi na LLDPE.
Daidaita Polymer zuwa Tsari
Domin Polyethylene Mai Girma (HDPE), zabin ya dogara da abin da ake so na ƙarshe.
- Fim ɗin HDPE: The a hankali sanyaya kudi yana ƙara crystallinity, haifar da wani layi tare da babban yawa (>0.950 g/cm³), tauri, da ƙarfi. Wannan yana da kyau ga aikace-aikacen da ke buƙatar babban juriya na sinadarai da ɗorewa a kan barga mai ƙarfi, kamar ma'aunin ƙasa ko tafki.
- Farashin HDPE: Saurin sanyaya yana haifar da ƙarancin crystalline, takarda mai sassauƙa. Wannan ya sa ya zama babban zaɓi don aikace-aikace inda layin layi dole ne ya dace da saman da bai dace ba ko jure faɗaɗa zafin zafi da hawan keke ba tare da matsananciyar damuwa ba.
Domin Polyethylene Low-Density Linear (LLDPE), wanda a zahiri ya fi sauƙi fiye da HDPE, lebur mutu extrusion na iya ƙara haɓaka laushinsa da haɓakawa, yana mai da shi manufa don aikace-aikacen da ke buƙatar matsananciyar sassauci kamar tankin tanki ko tudun leach. Koyaya, zaɓi na ƙarshe koyaushe yana zuwa ga takamaiman buƙatun injiniyan aikin, ba kawai nau'in polymer ba.
Ta yaya zan Zaba Geomembrane Dama bisa Tsarin Samfuransa?
Kuna fahimtar cikakkun bayanai na fasaha, amma ta yaya kuke yanke shawarar siyayya daidai? Zaɓin da ba daidai ba yana nufin wuce gona da iri kan daidaiton da ba ku buƙata ko yin haɗarin gazawar aikin ta hanyar yanke sasanninta.
Zaɓi lebur ɗin geomembranes don ayyukan da ke buƙatar sassauƙa mai ƙarfi, daidaitaccen kauri, da walƙiya mai sauƙi (misali, tudu masu tudu, ƙasƙanci marasa tsari). Blown fim ne mai tsada-tasiri zabi ga manyan, lebur yankunan inda daidaito ƙarfi da kuma kudin ne na farko direbobi.
Jerin Shawarwarinku
Lokacin ƙididdigewa ko shigo da geomembranes, tambayi mai siyarwar wacce hanyar masana'anta aka yi amfani da ita kuma ta dace da aikin ku. Ingancin guduro (Stress Crack Resistance, Oxidative Induction Time) yana da mahimmanci daidai, amma tsarin yana ba da ingantaccen tushen aiki.
Yi amfani da wannan jagorar mai sauƙi don yanke shawara:
Ƙayyade Flat Die (Cast) Geomembrane Lokacin:
- Ƙarƙashin darajar ba daidai ba ne ko ana tsammanin sasantawa.
- Sassauci da haɓakawa mafi girma suna da mahimmanci don aiki.
- Aikin ya ƙunshi hadaddun sifofi, cikakkun bayanai, ko gangaren gangare.
- Ingancin walda da sauƙin shigarwa sune manyan abubuwan fifiko.
Yi la'akari da Fim ɗin Geomembrane Lokacin da:
- Aikace-aikacen ya ƙunshi babban yanki, lebur, kuma barga.
- Kasafin kudin aikin shine abin la'akari na farko don oda mai girma.
- Daidaitaccen ƙarfi a cikin kwatance biyu ya isa don ƙirar ƙira.
- Kuna da ingantaccen tsarin kula da ingancin walda a kan shafin.
Ƙarshe
Zaɓin tsakanin fim ɗin da aka busa da mutuƙar faɗuwa ya dogara da buƙatun aikin ku don sassauci, sarrafa kauri, da farashi. Kuma ba shi da fifiko a duniya; zabin da ya dace ya dace da bukatun injiniya.
