Eminyakeni yamuva, izimboni eziningi, kuhlanganise nezethu, zenze ukusuka ku-raber yemvelo ukuyazokwenziwa.Kodwa uyini ngempela umehluko phakathi kwalokhu okubili?Yiziphi izinhlobo ezahlukene ze-synthetics futhi ziyakwazi ukumelana namapayipi enjoloba emvelo?Isihloko esilandelayo sihlanganiswe ukuze kuphendule le mibuzo neminye.
Irabha Yemvelo vs Irabha Yokwenziwa: Uyini Umehluko?
Irabha yemvelo ivela ku-Hevea brasiliensis (noma isihlahla senjoloba i-Pará) okuwuhlobo lwezitshalo ezidabuka e-Brazil.Irabha yemvelo iyimpahla ye-elastomer ethandwa kakhulu, esetshenziswa ezinhlobonhlobo zezicelo nezimboni.
Irabha yokwenziwa ikhiqizwa ngokwenziwa futhi idalwa ngama-polymer ahlukahlukene.Ngenxa yokwenziwa kwayo, ingashintshwa futhi ibe nenani lezinto ezahlukene ezingezwe kuyo.
Ngokuvamile, irabha yemvelo ibhekwa njengenamandla futhi iguquguqukayo, kodwairabha yokwenziwainenzuzo yokuba amakhemikhali kanye nokushisa ukumelana.Irabha yokwenziwa nayo inenzuzo yokuthi iyonga kakhulu.
Yiziphi Izakhiwo Zamapayipi Erabha Yokwenziwa?
Izici ezivame kakhulu zeishubhu yerabha yokwenziwazihlanganisa:
Ukuvumelana nezimo - Amapayipi erabha alungele noma yisiphi isicelo esidinga ipayipi eguquguqukayo noma ishubhu.Irabha yaziwa ngokukwazi ukugcina ukuguquguquka kwayo, kuyilapho futhi imelana nama-kinks kanye nemihuzuko.
Ukumelana nezinga lokushisa - Amapayipi enjoloba emvelo (empeleni izinto eziningi ezivamile ze-hose) azikwazi ukuphatha amazinga okushisa aphezulu kanye nerabha yokwenziwa.
Ukumelana namakhemikhali - Ipayipi lepayipi lerabha yokwenziwa lingcono ukumelana namakhemikhali uma liqhathaniswa nenjoloba yemvelo, nezinye izinto ezivamile ezisetshenziselwa ukwakhiwa kwepayipi, ezingaba buthaka ngokuhamba kwesikhathi.
Yiziphi Izinhlobo Ezihlukene Zerabha Yokwenziwa?
Njengoba irabha yokwenziwa ingaqukatha izakhiwo ezihlukene, kunezinhlobo eziningi ezahlukene.
I-EPDM – I-Ethylene Propylene Diene Monomer (EPDM) imelana kakhulu namakhemikhali amaningi, ngaphandle kwamafutha kanye namafutha amaminerali.I-UV futhi imelana nesimo sezulu, amapayipi erabha e-EPDM nawo anokumelana nezinga lokushisa eliphezulu.
I-NBR – Irabha ye-Nitrile butadiene (NBR), nakuba ingamelani nesimo sezulu njenge-EPDM, inokumelana okuphezulu nowoyela wamaminerali, okuyenza ifanelekele ukusetshenziswa kwepayipi ithintana namafutha namafutha.
I-SBR – Irabha ye-Styrene butadiene (SBR) inenhloso evamile futhi ayibizi uma iqhathaniswa ne-EPDM ne-NBR.Nakuba ingenakho ukumelana nesimo sezulu, ifana ne-EPDM ekwazi ukumelana namakhemikhali.
I-TPE - Lapha e-Lanboom, ucwaningo lwethu nobuchwepheshe busebenzise izinzuzo zenjoloba ne-PVC ukukhiqiza i-thermoplastic polyester elastomer (TPE).Lolu hlobo lwerabha luhlanganiswe ne-PVC ukuze lunikeze ukuguquguquka okuthuthukisiwe emazingeni okushisa aphansi, njengoba i-PVC evamile ingalahlekelwa ukuguquguquka kwayo kanye nokuqhekeka kulezi zimo.I-TPE nayo ayinalo ukungcola futhi ivunyiwe yi-WRAS, okwenza ifaneleke ezinhlelweni zamanzi okuphuza.
I-TPV – Sihamba phambili ekwakheni i-thermoplastic vulcanizates (TPV).Ama-TPV angama-elastomer asebenza kakhulu anephuzu lentengo elifanayo nerabha.Abonisa izici eziningi nokusebenza kwerabha, kodwa anamandla, angasindi kakhulu, futhi angaphinda asetshenziswe ngo-100%.
Yiziphi Izicelo Ezifaneleka Kakhulu Amapayipi Erabha Yerabha?
Ngenxa yezakhiwo zawo, amapayipi enjoloba okwenziwa ahlukahlukene futhi angasetshenziswa ezinhlelweni eziningi.Lezi ezimbalwa nje:
I-Industrial - Amapayipi erabha yokwenziwa asetshenziswa kakhulu ezindaweni zezimboni.Ukumelana kwawo namakhemikhali kuwenza alungele ukusetshenziswa okubandakanya ukudluliswa komoya, uphethiloli, noma okokugcoba.
Ukwakhiwa - Ukuguquguquka kwabo kanye nokumelana nokuhuzuka kubenza bafaneleke kahle izinhlelo zokusebenza ezibandakanya ukwakhiwa.I-EPDM ne-NBR zinokumelana nesimo sezulu okuphezulu, okuzenza zifanelekele ukusetshenziswa ngaphandle, kanye nasendlini.
Amanzi - i-TPE, ngenxa yokungabi namabala futhi avunyelwe i-WRAS, angasetshenziselwa izicelo ezibandakanya ukudluliswa nokukhipha amanzi okuphuza.
Kunezinhlobo eziningi ezahlukene zenjoloba yokwenziwa, ngayinye enezici zayo, eziyenza ifanele izinhlelo zokusebenza ezahlukene.Sinikeza izinhlobonhlobo zamapayipi enjoloba ahlukene, okwenza kube lula kunangaphambili ukukutholela umkhiqizo okulungele.Sicela uzizwe ukhululekile ukuphequlula uhla lwethu lwemikhiqizo, noma uma usuvele ukutholile okufunayo, ungathintana nelungu lethimba lethu labadayisi elinobungane ukuze uthole isaphulelo samahhala.
Isikhathi sokuthumela: Oct-18-2022