Iwindi leshawa yerabha ye-graphite gasket ukuqina? 

Ubona lo mbuzo uvela ku-specs noma ovela kuklayenti, futhi umcabango osheshayo awuphathelene nempahla eyodwa yezinto ezibonakalayo-umayelana neqiniso elixakile lalokho okwenzekayo lapho ubeka uphawu phakathi kwefasitela elinyakazayo nohlaka lweshawa, ulindele ukuthi luhlale iminyaka ngokumelene nokushisa, amanzi, nokucindezelwa njalo. Igama elithi ‘graphite’ livame ukuphonswa phakathi njengothuli lomlingo, okucatshangwa ukuthi lithuthukisiwe, kodwa akunjalo? Kusukela esikhathini sami sokufaka nokufaka esikhundleni, ingxoxo eqinile ayivamisile ukuthi imayelana ne-gasket ngokwayo. Kumayelana nesistimu, imvelo, futhi ngokungananazi, ukungezwani okuvamile ekuthengeni.

Isithembiso Se-Graphite vs. Iqiniso Elikusayithi

Abahlinzeki bathanda ukwenza irabha efakwe nge-graphite. Izinga lokuthengisa lihlala limayelana nokungqubuzana okuncishisiwe, ukuvalwa okungcono ngaphansi kokucindezelwa, nokuphila isikhathi eside. Futhi ngokwethiyori, kunengqondo. I-graphite iyisithambiso esiqinile. Kuhlelo lokusebenza oluguqukayo olufana nomnyango weshawa lapho iwindi noma iphaneli lislayida noma i-pivots, ukunciphisa ukungqubuzana endaweni ethintana ne-rubber gasket kufanele kuyivimbele ukuthi ingadabuki noma yonakale ngaphambi kwesikhathi. Kodwa nansi i-hiccup yokuqala: ikhwalithi nokuhlakazeka kwe-graphite. Ngibone amaqoqo lapho i-graphite ibonakala sengathi icishe iphume, ishiya insalela engcolile engilazini ngemva kwezinyanga ezimbalwa zokusetshenziswa, kuyilapho irabha engaphansi ibuyela esimweni sayo esiyisisekelo, iba yi-tacky noma i-brittle. Inzuzo yokuqina? Ayinalutho, uma ingeyinhle. Kwakungeyona i-graphite ehlulekile; kwakuyinkomponi okwahlanganiswa kuyo.

Bese kuba khona isethi yokucindezela. Lona omkhulu. I-gasket iyashwibeka phakathi kohlaka lwe-aluminium kanye nephaneli yengilazi. I-EPDM enhle noma inhlanganisela ye-silicone kufanele ibuyele emuva. Ungeza i-graphite kumxube, futhi ingashintsha inkumbulo ye-polymer. Ngikhumbula iphrojekthi cishe eminyakeni emithathu emuva lapho sasebenzisa khona iphrofayili ye-EPDM ye-premium, efakwe nge-graphite ochungechungeni lwezindawo ezivalekile zamashawa ehhotela asezingeni eliphezulu. Ukushibilika kokuqala kwakumnandi—kuthule, kubushelelezi. Kodwa ngemva kwezinyanga ezingu-18 zokusetshenziswa njalo endaweni enomswakama, eshisayo, ama-gaskets athatha isethi unomphela. Abazange babuyele emuva. Isigxivizo saba umugqa omncane, oyisicaba, futhi saqala ukuthola ama-callback ukuze amanzi ageleze. I-graphite yasiza ingaphezulu ukuba lishelele, kodwa ingabe lalimaza ukuqina kwezinto ezibonakalayo ekucindezelekeni okuqhubekayo? Kuleso simo, kwakubonakala kunjalo.

Lokhu kuholela ephuzwini elibanzi: inhlanganisela yerabha eyisisekelo iyinkosi. I-graphite iyisengezo, isilungisi. Uma uqala nge-EPDM yezinga eliphansi noma ingxube yerabha egaywe kabusha, ukwengeza i-graphite kufana nokufaka ibhande losizo endabeni yesakhiwo. Ngivame ukungabaza ama-specs avele abize i-graphite gasket ngaphandle kokuchaza izinto eziyisisekelo, ubulukhuni bayo (Shore A), kanye nebanga lokushisa elilindelekile lesevisi. Umbuzo wokuqina uyasuka kokuthi Ingabe i-graphite inhle? Kuyini le graphite ixutshwe nayo, futhi ngayiphi injongo?

Ukuhlaselwa Kwemvelo: Akukaze kube Amanzi Nje

Uma sikhuluma ngama-gaskets eshawa efasiteleni, 'ishawa' igama elisebenzayo, elinonya. Akuyona inkungu ethambile. Isitimu esishisayo, ukuhamba ngebhayisikili okushisayo ukusuka engilazini ebandayo ukuya emanzini ashisayo, ukuchayeka kwamakhemikhali kusuka ezinsipho, ama-shampoos, futhi ikakhulukazi izikhiqizo ze-limescale ezinokhahlo noma izihlanzi ezine-asidi. I-graphite layer ngokwayo ingaba sengozini. Ezindaweni ezinamanzi aqinile, idiphozi yamaminerali (i-limescale) ingabophezela endaweni ethe ukuthungwa kancane, egcotshiwe ye-graphite gasket ngokuqina kakhulu kune-silicone engenalutho. Uthola lo qweqwe oluqinile, olunoqweqwe olwakhayo. Ngokuhamba kwesikhathi, njalo uma iwindi lishelela, akusesona isenzo esibushelelezi se-graphite-on-glass; idonsa izinhlayiya ezilimazayo kuzo zombili izindawo, igqoke phansi i-gasket futhi ikwazi ukunwaya umzila wengilazi.

Ukuchayeka kwe-UV kungomunye umbulali othule, ovame ukunganakwa ekufakweni kwangaphakathi. Kodwa amafasitela amaningi okugezela athola ukukhanya kwelanga okuqondile. I-EPDM ejwayelekile idume kabi nge-UV; iyaqhekeka futhi yehlise isithunzi. I-Silicone iyiphatha kangcono kakhulu. Uma i-graphite yakho isesisetshenziswa sesisekelo esingenwa yi-UV, inzuzo yokuthambisa ayisebenzi uma into ngokwayo ihlanya futhi ihlukana. Ngifunde lokhu kabuhlungu ekulungiseni indlu yokugezela ebheke eningizimu. Ama-gaskets abukeka emuhle unyaka wonke, abese enza imifantu emincane eduze nodebe oluveziwe. Impushana ye-graphite yayisekhona emifantwini, ingenzi lutho ukuhlanganisa uphawu.

Bese kuba khona ukukhula kwebhayoloji. Isikhunta nesikhutha. Imvelo enezimbotshana yezinye izinhlanganisela zenjoloba ingaba yindawo yokuzalela. Ezinye izithasiselo, okuhlanganisa nokwelashwa okuthile kwe-graphite, kungavimbela lokhu, kodwa angizange ngibone ubufakazi obuphelele besikhathi eside. Kaningi, ukukhethwa kwento engenazimbobo njenge-silicone yekhwalithi ephezulu, ene-graphite noma engenawo, yenza okwengeziwe ukuze uqine endaweni ethandwa yisikhunta ngokumane inqabe indawo engaphezulu ukuze izinhlamvu zibambe. Imethrikhi yokuqina lapha ayikona nje ubuqotho bemishini; kungubuqotho obuhlanzekile.

Ukufakwa: Isikhathi Seqiniso

Yonke isayensi yezinto ezibonakalayo emhlabeni ayiphumelelanga endaweni yokufakwa. Ukuqina kwe-gasket kunqunywa kusengaphambili ukuthi ifakwa kanjani. Kuzinhlelo zokusebenza zeshawa ewindini, i-gasket ivamise ukudinga ukwelulwa noma igoqelwe kushaneli yohlaka lwe-aluminium. Ukucindezeleka okukhulu ngesikhathi sokufakwa kwethula amaphuzu okucindezeleka angunaphakade. Ngike ngabona abafaki besebenzisa i-screwdriver ukuze bafake i-gasket endaweni, befaka udebe oluvalayo. Leyo nick encane, endaweni eguquguquka njalo, iba izinyembezi ezinyangeni eziyisithupha. I-graphite ayisizi lapho.

Ukulinganisa kufanele kube okuqinile. I-gasket encane kakhulu esiteshini izokwelulwa ngokweqile, izacile emaphethelweni okuvala, futhi yehluleke kusenesikhathi. Enye enkulu kakhulu izonqwabelana, idale ingcindezi engalingani kanye nezindlela zokuvuza. Ukuthola okuvela kumkhiqizi onokubekezelelana okungaguquki kwe-extrusion kubalulekile. Lapha yilapho isithunzi senkampani sibalulekile. Isibonelo, sithole izinsimbi ezijwayelekile namaphrofayili wokuvala kumkhiqizi ofana naye I-Handan Zitai Fetesser Comment Co, Ltd. kwezinye izicelo zokwakha. Indawo yabo e-Yongnian, okuyisizinda esiyinhloko esivamile e-China, ngokuvamile isho ukufinyelela kuhlelo olubanzi lwezemvelo lobuchwepheshe bempahla nokukhiqiza. Nakuba angizange ngisebenzise okuqondile kwabo i-raber graphite gasket imikhiqizo, umgomo uphethe: umkhiqizi oshumekwe kuleyo ndawo yemboni uvamise ukuba nokulawula okuqinile phezu kwamaqoqo wempahla eluhlaza kanye nokungaguquguquki kwe-extrusion, okunomthelela ngokuqondile ekufakekeni, futhi, ngenxa yalokho, ukuqina kokugcina kophawu. Indawo yabo, zitasteners.com, ibonisa ukugxila kuzixhumi, kodwa isiyalo sokukhiqiza esiyisisekelo sezingxenye ezinemba sifanelekile.

Enye i-nuance yokufaka: i-lubrication. Kuzwakala kuyindida—ukugcoba i-gasket efakwe i-lubricant. Kodwa ngokulingana okuqinile, ukusebenzisa isisombululo samanzi anensipho noma i-lubricant yerabha efanele ngesikhathi sokufakwa akuxoxiswana. Ivimbela i-gasket ekubopheni noma ukudabuka njengoba islayida esiteshini. Ukomisa i-graphite gasket, ikakhulukazi ngosuku olufudumele, kungabangela ukuba ibambe futhi ibophe. Lowo monakalo osheshayo ungase ungabangeli ukuvuza ngosuku lokuqala, kodwa iphuzu lokwehluleka okuqinisekisiwe.

Iphuzu Lecala: Ukwehluleka Ukusebenza Okuphezulu

Ake ngichaze icala elithile, elikhungathekisayo. Iklayenti ligcizelele ku-gasket engcono kakhulu yama-cubicle eshawa ejimini yezohwebo. Sahlinzekwa ngemali ebizayo, evela kwamanye amazwe i-raber graphite gasket, kunconywa ukuqina okwedlulele. Yayizwakala imnandi—ibushelelezi, iminyene, ishiya umkhondo we-graphite ophelele eminweni. Ukufakwa kuhambe kahle. Shesha uye phambili izinyanga eziyisishiyagalombili. Indawo yokuzivocavoca yayisebenzisa izihlanzi ezinolaka ezenziwe nge-chlorine nsuku zonke. Ama-gaskets ayesephelelwe ukushelela kwawo, aba mpunga ophaphathekile, futhi aba namandla ngokuphawulekayo. Izicabha ezishelelayo zaqala ukunamathela, zase ziyaqhaqhazela. Lapho esuswa, ama-gaskets ayephuka; baqhamuke esikhundleni sokuguquguquka. I-chlorine yayihlasele amaketanga e-polymer, futhi i-graphite yayihlezi nje ku-matrix eyonakele. Ilebula esebenza kahle kakhulu yehlulekile ukulandisa ngendawo ethile yamakhemikhali. Sawashintsha safaka i-Viton-based gasket elula, engazweli amakhemikhali (ayikho i-graphite), futhi leyo isithathe iminyaka. Isifundo besinonya: ukuqina kuncike komongo. I-graphite ibhekane nokungqubuzana, hhayi ukumelana namakhemikhali.

Lokhu okuhlangenwe nakho kwangiphusha ukuthi ngihlale ngicela, noma ngisho nokwenza, izivivinyo zokusebenzisana ezilula. Uma uzazi izihlanzi ezijwayelekile ezosetshenziswa umsebenzisi wokugcina, hlola isampula lento ye-gasket ecwiliswe kuleyo ndawo isonto lonke. Hlola ukuvuvukala, ukuqina, noma ukuwohloka kwendawo. Kuyisinyathelo esiyisisekelo esidlula yonke i-jargon yokuthengisa ukuqina kwe-gasket.

Ngakho-ke, Yini Esebenza Ngempela Ekuphileni Okude?

Ngokusekelwe ekuhlulekeni nasekuphumeleleni, nansi ukuthatha kwami ​​okubalulekile. Eziningi zezinhlelo zokusebenza zeshawa yefasitela lendawo yokuhlala, igasket ye-silicone yezinga eliphezulu ivamise ukudlula irabha efakwe i-graphite iyonke. ukuqina. Ukumelana okungokwemvelo kwe-silicone ekushiseni okweqile, i-UV, nomswakama kuphakeme. Ukubuyisela isethi yokucindezela kuhle kakhulu. Ukuhwebelana kuwukungqubuzana kokuqala; kungaba kancane grippier. Kodwa ngefasitela elinamahinga noma elinganyakaziswanga njalo, lokhu akubalulekile.

Uma unomnyango osindayo, oshelelayo njalo, khona-ke ukuncipha kokungqubuzana kubalulekile. Uma kunjalo, beka kuqala izinto eziyisisekelo kuqala. Bheka i-graphite-enhanced, i-EPDM ye-premium noma i-thermoplastic elastomer (TPE) eyenziwe ngobunjiniyela. Qinisekisa ukuthi i-graphite iyingxenye ebalulekile ye-compound, hhayi nje i-surface coating. Cela idatha ngesethi yokuminyanisa (ASTM D395) kanye nokwanda kwevolumu emanzini namakhemikhali avamile. Imininingwane kufanele ikhulume indaba.

Ekugcineni, phatha okulindelwe. Ayikho i-gasket ehlala unomphela. Endaweni esetshenziswa kakhulu, enolaka, ukuhlela ukuhlolwa nokushintshwa kuyingxenye yomklamo oqinile. Kwesinye isikhathi, isixazululo esiqinile siklama isistimu ukuze i-gasket ivikeleke—ivikelwe ku-UV eqondile nesifutho esisindayo, noma ithathelwe indawo kalula ngaphandle kokuhlakaza yonke iyunithi yewindi. Ukugxila akumele kube nje okuyisimangaliso I-Graphite Gasket, kodwa ekudaleni indawo yokuvala ethethelelayo, elondolozekayo ezungezile. Yilapho kwakhiwe khona ukuqina kwangempela, isikhathi eside.