Ukubekwa uphawu kuyisici esibalulekile sezimboni ezihlukahlukene, okuqinisekisa ukuthi uketshezi namagesi kuhlala kukhona nokuthi amasistimu asebenza kahle.Izinto ezimbili ezidumile zenjoloba ezisetshenziswa eshidini lensimbi elimbozwe ngeraba yi-NBR (Nitrile Butadiene Rubber) kanye ne-FKM (Irabha ye-Fluorocarbon).Ngenkathi zombili zinikeza izakhiwo ezinhle kakhulu zokuvala, zinezici ezihlukile ezizenza zifanelekele izinhlelo zokusebenza ezahlukene.Kulesi sihloko, sizohlola ukufana nomehluko phakathi kwerabha ye-NBR ne-FKM kumongo wamapuleti anama-sealant.
I-NBR kanye ne-FKM babelana ngezici ezithile ezivamile ezibenza babe wusizo ekutywineni izinhlelo zokusebenza:
Ukumelana Namakhemikhali: Womabili amarabha abonisa ukumelana okuhle kakhulu nezinhlobonhlobo zamakhemikhali, uwoyela, nezincibilikisi.Lesi sici sibalulekile ekuqinisekiseni ukuthi amapuleti anama-sealant angakwazi ukumelana nemithombo yezindaba enolaka angase ahlangane nayo.
Ukumelana Nezinga Lokushisa: Amarabha e-NBR kanye ne-FKM angasebenza phakathi kwebanga lokushisa elibanzi, awenze aguge izimo ezihlukahlukene zemvelo.Bangakwazi ukumelana namazinga okushisa aphansi naphezulu, baqinisekise ukusebenza okuthembekile kokubeka uphawu.
Ngaphandle kokufana kwazo, irabha ye-NBR ne-FKM inezakhiwo ezihlukile ezizenza zifanelekele izimo ezahlukahlukene:
Irabha ye-NBR:
I-Oil Resistance: I-NBR idume ngokumelana nowoyela okuphakeme, ikakhulukazi ngokumelene nowoyela wamaminerali namafutha kaphethiloli.Lokhu kwenza kube ukukhetha okuhle kwezicelo lapho ukuxhumana nalezi zinhlobo zamafutha kulindeleke.
Ukumelana Nokushisa: Nakuba i-NBR inikeza ukumelana nokushisa okuhle, ingase yonakale ngokuhamba kwesikhathi lapho ichayeke emazingeni okushisa aphezulu.Ngakho-ke, ifaneleka kakhulu izinhlelo zokusebenza ezinezidingo zokushisa ezimaphakathi.
Ukusebenza Kwezindleko: I-NBR ngokuvamile ayibizi kakhulu kune-FKM, okuyenza ibe ukukhetha okudumile kumaphrojekthi azwela izindleko kuyilapho iletha ukusebenza okwanelisayo.
Ukumelana Nokuguga: Ukumelana nokuguga kwe-NBR kumpofu kakhulu uma kuqhathaniswa ne-FKM, ikakhulukazi ezindaweni ezishisayo nezixutshwa ne-oxidative, okungase kukhawulele ukuphila kwayo isikhathi eside kwezinye izinhlelo zokusebenza.
Irabha ye-FKM:
Ukumelana Namakhemikhali: Irabha ye-FKM inikeza ukumelana okukhethekile nama-asidi aqinile, izisekelo, nama-oxidizer, okuyenza ibe inketho ekhethwayo yezinhlelo zokusebenza ezibandakanya amakhemikhali anolaka.
Ukumelana Nokushisa: I-FKM ihamba phambili ezindaweni ezinezinga lokushisa eliphezulu, igcina ubuqotho bayo kanye nezakhiwo zokuvala ngisho namazinga okushisa aphakeme, afinyelela ku-150 degrees Celsius.
Ukumelana Nokuguga: I-FKM ikhombisa ukumelana nokuguga okuhle kakhulu, iqinisekisa ukuqina nokuthembeka kwesikhathi eside ezimeni ezimbi kakhulu.
Izindleko: I-FKM ivamise ukubiza kakhulu kune-NBR, kodwa ukusebenza kwayo okuphezulu kuthethelela ukusetshenziswa kwayo ezinhlelweni ezibucayi nezifuna ngamandla.
Ukukhetha Impahla Elungile Yamapuleti Ahlanganiswe Nge-Sealant:
Lapho ukhetha phakathi kwe-NBR ne-FKM yamapuleti afakwe uphawu, kufanele kubhekwe lezi zinto ezilandelayo:
Nquma uhlobo loketshezi noma igesi i-sealant ezohlangana nayo.I-NBR ilungele uwoyela wamaminerali, kuyilapho i-FKM ikhethwa kumakhemikhali anolaka.
Izimfuneko Zezinga Lokushisa: Hlola izimo zokushisa zesicelo.I-FKM ifaneleka kakhulu ezindaweni ezinezinga lokushisa eliphezulu, kuyilapho i-NBR ingcono kumazinga okushisa amaphakathi.
Izindleko: Hlaziya isabelomali sephrojekthi.I-NBR inikeza isixazululo esingabizi kakhulu ngaphandle kokuyekethisa ekusebenzeni, kuyilapho i-FKM inikeza ukusebenza okuphakeme ngezindleko eziphakeme.
Amarabha e-NBR kanye ne-FKM womabili anendawo yawo emhlabeni weshidi lensimbi eliboshwe ngenjoloba.Ukuqonda ukufana nokuhlukana kwazo kuvumela onjiniyela nabaklami ukuthi benze izinqumo ezinolwazi ngokusekelwe ezidingweni ezithile zezicelo zabo.Ngokucabangela izici ezifana nohlobo lwemidiya, izinga lokushisa, kanye nezindleko, impahla yerabha efanele ingakhethwa ukuze kuqinisekiswe ukuvalwa okuthembekile nokusebenza okufanele ezimbonini ezihlukahlukene.
Isikhathi sokuthumela: Apr-02-2024