Ni irihe tandukaniro riri hagati ya silicone rubber na EPDM?

Iyo uhisemo rabu yo gukoresha, Injeniyeri nyinshi zikenera guhitamo hagati yo guhitamo silicone cyangwa EPDM. Birumvikana ko dukunda silicone (!) ariko se byombi bihura bite? EPDM ni iki kandi niba ukeneye guhitamo hagati yabyo, ufata ute icyemezo? Dore ubuyobozi bwacu bwihuse bwa EPDM…

 

EPDM ni iki?

EPDM isobanura Ethylene Propylene Diene Monomers kandi ni ubwoko bwa rubber ya sintetike ifite ubucucike bwinshi. Ntabwo ihangana n'ubushyuhe nka silicone ariko ishobora kwihanganira ubushyuhe bwinshi kugeza kuri 130°C. Kubera iyo mpamvu ikoreshwa nk'igice mu nganda zitandukanye zirimo inganda, ubwubatsi n'imodoka. Mu bushyuhe buri hasi, EPDM izagera aho icika intege kuri -40°C.

EPDM ikunzwe cyane nk'umupira wo hanze kuko urwanya ihindagurika ry'ikirere harimo no kurwanya aside na alkali. Bityo, uzasanga ikoreshwa mu bintu nk'ibifunga by'amadirishya n'inzugi cyangwa impapuro zo kwirinda amazi.

EPDM ifite uburyohe bwiza bwo gushwanyagurika, gukura kw'ibice no kudacika kw'amarira.

 

Ni iki kindi silicone ishobora gutanga?
Nubwo silicone na EPDM bisangiye ibintu byinshi nko kurwanya ibidukikije neza, hari n'itandukaniro rikomeye kandi ni ngombwa kubyemera mu gihe ufata ibyemezo byo kugura.

Silicone ni uruvange rwa karuboni, hidrojeni, ogisijeni na silikoni kandi uru ruvange rutanga ibyiza byinshi kurusha EPDM. Silicone irwanya ubushyuhe cyane, ishobora kwihanganira ubushyuhe bugera kuri dogere selisiyusi 230 mu gihe ikomeza imiterere yayo. Byongeye kandi, ni elastome idasembuye kandi ikunzwe cyane mu nganda zikora ibiribwa n'ibinyobwa. Mu bushyuhe buri hasi, silikoni irenga EPDM kandi ntigera ku rugero rwo kwangirika kugeza kuri dogere selisiyusi -60.

Silicone nayo iraramba kandi itanga uburebure bwinshi kurusha EPDM. Irashobora kandi gukorwa kugira ngo idacika nk'uko EPDM ibigenza. Ibi byombi bituma iba nziza cyane mu gukoresha imashini zikoresha imirasire y'izuba n'ibikoresho bya laminated, akenshi byitwa imashini zikoresha imirasire y'izuba.

Silicone ni elastomer ihamye kandi kubera iyo mpamvu abaguzi bumva ko silicone ari nziza nk'igisubizo cyiza kandi kirambye kubera iyi mpamvu. Nubwo silicone ifatwa nk'ihenze cyane muri zo, igihe cyo kubaho cya EPDM akenshi kiba gito ugereranyije n'icya silicone bityo ikaba igomba gusimbuzwa iyo ikoreshejwe kenshi. Ibi bituma ikiguzi cy'igihe kirekire kiruta icya silicone.

Amaherezo, nubwo EPDM na silicone byombi bizabyimba iyo bishyizwe mu mavuta igihe kirekire ku bushyuhe bwinshi, silicone ifite ubushobozi bwo guhangana n'amavuta y'ibiribwa ku bushyuhe bw'icyumba, niyo mpamvu ikoreshwa mu gutunganya amavuta y'ibiribwa nk'udupfundikizo n'udupfundikizo mu mashini zitunganya.

 

Ni gute wahitamo hagati y'ibyo byombi?
Nubwo iyi nyandiko ngufi ivuga muri make itandukaniro riri hagati y’ibyo byombi, uburyo bwiza bwo kumenya irangi ukeneye ni ukumenya icyo ikoreshwa n’uko ikoreshwa neza. Kumenya uburyo uzashaka kuyikoresha, imiterere yayo n’uburyo uzakenera kuyikoresha bizagufasha kubona neza irangi ugomba guhitamo.

Nanone, menya neza ko utekereza ku bintu nk'imbaraga, ubworoherane n'uburemere ibikoresho bizakenera kwihanganira kuko ibi nabyo bishobora kuba ibintu by'ingenzi bigena. Iyo ufite aya makuru, ubuyobozi bwacu burambuye kuri Silicone Rubber vs EPDM bushobora kuguha amakuru arambuye ukeneye kugira ngo ufate icyemezo cya nyuma.

Niba wifuza kuganira n'umwe mu bagize itsinda ryacu ku bijyanye n'umushinga wawe, hari umuntu uhari igihe cyose. Twandikire gusa.