Rubber ya fluorine (FKM) ni elastomer ikoresha thermosetting, mu gihe polytetrafluoroethylene (PTFE) ari thermoplastic. Byombi ni ibikoresho bifite fluorine, bikikijwe na atome za fluorine na atome za karuboni, bigatuma birwanya cyane imiti. Muri iyi nkuru, umuti wa polymer wa TRP ugereranya ibikoresho bibiri biri hagati ya FKM naPTFEkugira ngo umenye neza ibikoresho bya nyuma bifite fluorine hanyuma uhitemo ibya nyumaUruganda rukora imiyoboro ya PTFE
Ibyiza bya FKM rubber na PTFE
Inkomoko:
FKM: Indege mu Ntambara ya Kabiri y'Isi Yose zahuye n'ibibazo byo gusohoka kw'ibice bya nitrile, bitari bifite ubushyuhe buke bwasabwaga mu bikorwa bitandukanye. Kuba ibinyabutabire bitameze neza mu mibanire ya fluorocarbon bivuze ko elastomer za fluorine, cyangwa fluoroelastomer, ari umwanzuro usanzwe. Rero, rubber ya FKM yatangiye kugurishwa mu 1948.
PTFE: Mu 1938, umuhanga mu bya siyansi wa DuPont, Roy Plancott, yavumbuye polytetrafluoroethylene ku bw'impanuka. Plunkett yagerageje refrigerants maze azibika muri silindiri. Yatunguwe nuko iyo myuka yishyize hamwe, isigarana ikintu cy'umweru gifite ibara ry'umukara, kidahura n'ibintu bya shimi kandi gishobora kwihanganira ubushyuhe bwinshi cyane. DuPont yanditse ikirango cya mbere cya PTFE materials-ptfe mu 1945.
Umwanzuro: Iterambere rya PTFE ni impanuka y'ibintu bitangaje, byatumye habaho ivuka ry'ibikoresho bidasanzwe. Ariko, ibikoresho bitangaje kimwe, FKM rubber, byari bikenewe cyane mu myaka y'intambara. Kubera iyo mpamvu, uruhare rw'amateka rwa FKM fluoroelastomer bivuze ko ari byiza gato muri iki cyiciro cy'irushanwa.
Imitungo:
Rubber ya FKM: Rubber ya FKM ifite imigozi ikomeye ya karuboni-fluorine, bigatuma irinda ubushyuhe cyane, kandi irinda ogisijeni. FKM ifite umubare utandukanye w'imigozi ya karuboni-hydrogen (ifitanye isano n'ubushyuhe buke n'ubudahangarwa bw'imiti), ariko iracyafite ubudahangarwa bukomeye bwa shimi kurusha izindi elastomer nyinshi.
PTFE: Polytetrafluoroethylene igizwe n'uruhererekane rw'atome za karuboni, rufite atome ebyiri za fluorine kuri buri atome ya karuboni. Izi atome za fluorine zikikije uruhererekane rwa karuboni kugira ngo zikore molekile nini ifite isano ikomeye cyane ya karuboni na fluorine hamwe n'imiterere ya polymer, bigatuma PTFE idakora neza ku bintu byinshi bya shimi.
Umwanzuro: Hashingiwe gusa ku miterere yabyo ya shimi, PTFE nta miyoboro ya karuboni na hydrogen ifite, bituma itagira imiti kurusha FKM (nubwo FKM ikirinda imiti cyane). Kubera iyo mpamvu, PTFE ni igicucu cya FKM muri iki cyiciro.
Ibyiza:
FKM:
Ubushyuhe bwinshi (-45°C-204°C)
Ubudahangarwa bwiza cyane bw'imiti
Ubucucike bwinshi, imiterere myiza
Imiterere myiza ya mekanike
Ese ishobora gutegurwa kugira ngo ikureho guturika, CIP, SIP
PTFE:
Ubudahangarwa bw'ubushyuhe bwinshi (-30°C kugeza +200°C)
Nta kintu na kimwe gikoreshwa mu kuvura ibiyobyabwenge
Ubwugarizi bw'amashanyarazi bwiza cyane
Irinda ubukonje bwinshi n'ubushyuhe
Ntifata neza, ntizishobora gufatisha amazi
Igipimo cy'ubushyuhe ni gito cyane mu bintu byose bikomeye
Umwanzuro: Ntibishoboka kubitandukanya muri iki cyiciro. FKM itanga ubushobozi bwo guhangana n'ubushyuhe bwinshi, ariko ntabwo igera ku musaruro wa PTFE mu bijyanye no guhangana n'imiti. Kandi PTFE ntabwo ihangana n'ubushyuhe cyane, ariko itanga uburyo bwinshi bwo kudafatana
Ibibi:
FKM:
Ese bizabyimba mu cyuma gikozwe muri fluorine?
Ntibishobora gukoreshwa hamwe n'ibyuma byashongeshejwe cyangwa bya gaze
Igiciro kiri hejuru ugereranyije n'ibindi bitari fluorocarbon
Guhitamo FKM itari yo kuri porogaramu bishobora gutuma inanirwa vuba
Ingano z'ubushyuhe buri hasi zishobora guhenda
PTFE:
Ingufu nke n'ubudahangarwa
Ntibishobora gutunganywa mu gushonga
Ubudahangarwa bubi bw'imirasire
Ubukomere bwa High Shore butuma PTFE bigorana kuyifunga
Impeta za Ptfe o-rings zifite igipimo cyo kuva amazi kiri hejuru kurusha izindi elastomer
Kudakomera bituma gushyiraho ibifunga byinshi bidashoboka
Umwanzuro: Muri rusange, FKM rubber yatsinze iri rushanwa kubera imbaraga zayo zidasanzwe, ubushobozi bwo koroha no gufunga. Birumvikana ko niba nta kindi kintu uretse gufunga mu buryo budafite imiti bihagije, PTFE ni amahitamo meza. Ariko, FKM itanga ubworoherane bwinshi muri byose!
Porogaramu:
FKM:
Imodoka
Gutunganya imiti
Peteroli na gaze
Imashini zikomeye
Ibyerekeye ikirere
Abandi benshi
PTFE:
Ibikoresho byo gutunganya imiti
Valves
Gutwara imiti
Pompe diyafromu
Umwanzuro: Ni indi ntambara yica! FKM ifite uburyo bwinshi bwo kuyikoresha, kandi ishobora gukoreshwa ku buryo bukomeye cyane. Ariko, nubwo ifite imbogamizi, ibikoresho bya PTFE bitanga igisubizo cy'ibanze ku buryo bigoye cyane bwo kuyikoresha burimo umuvuduko ukabije w'ubushyuhe n'imiti ihumanya.
Ikiguzi:
Rubber ya FKM ni ikintu cy’agaciro gakomeye bitewe n’imiterere yayo ya shimi ndetse n’uburyo ikomeza kurwanya shimi. Niba udatekereje ku miterere ya shimi n’uburyo ikomeza kurwanya ubushyuhe, ushobora guhitamo elastomer ihendutse.
PTFE: Ibikoresho bya PTFE nabyo ni ibicuruzwa byiza cyane. Mu buryo nk'ubwo, niba ubushyuhe, umuvuduko, n'imiti ihumanya ikoreshwa mu gukoresha bitarenze ibihe bikomeye cyane, hari ubundi buryo buhendutse bushobora kuba bwiza. Kugira ngo ubone ubushobozi bwiza bwo gufunga, PTFE ifatanye n'inkingi ya elastomer kugira ngo itange ubudahangarwa bwo gukanda.
Umwanzuro: FKM na PTFE byombi ni ibicuruzwa byiza cyane kubera impamvu zumvikana. Ibi bikoresho byombi bifite imiterere yihariye, ibi bikaba bisobanura ikiguzi cyo kubikora. Ariko, ugomba kwibuka ko ku bikorwa bikomeye, byombi bitanga imiterere yihariye. Muri iki gihe, ubona icyo wishyuye, kandi ubundi buryo buhendutse akenshi burananirwa vuba. Ibi amaherezo ni ubukungu bubi.
Ibisubizo: Muri rusange, ubushobozi bwa FKM bworoshye buyiha inyungu muri ubu buryo bwo kwibwira. Amaherezo, ibi bikoresho byombi bifite fluorine bitanga ubushobozi bwihariye bwo kudakoresha imiti no kudakoresha ubushyuhe. Ariko, nk'iplastike, PTFE irakomeye kurusha FKM; bigatuma ikoreshwa gusa mu gufunga cyane aho ingufu nyinshi n'imiti yangiza ari byo byihutirwa. Uburyo bwagutse bwo gukoresha FKM nk'ibikoresho byo gufunga, byemejwe ko yatsinze!
Twizere ko uku kugereranya FKM rubber na PTFE bizaguha gusobanukirwa neza imiterere itandukanye ya buri gikoresho. Ni ngombwa gushimangira ko uburyo bwiza bwo guhitamo ibikoresho bikubereye ni ukuganira n'inzobere ishobora kukubwira imiterere itandukanye y'ibikoresho no guhuza igisubizo cyiza cyo gukoresha.
Ibivuzwe haruguru bivuga ku itangira ry'ibikubiye muri FKM na PTFE, ndizera ko iyi nkuru ishobora kugufasha, dukomoka mu Bushinwa mu by'umwuga.Abatanga imiyoboro ya PTFE, welcome to consult our products and please freely contact us at sales 07@zx-ptfe.com
Ubushakashatsi bujyanye n'umuyoboro wa ptfe:
Igihe cyo kohereza ubutumwa: 16 Mata 2021