Xa abantu abaninzi besiva i-'gasket', baba nomfanekiso weringi yerabha emnyama kwitephu. Kwihlabathi lethu, lihashe elithe cwaka libambe uxinzelelo, liqulathe ulwelo, kunye nokuthintela ukusilela okuyintlekele. Eyona ngcamango iphosakeleyo? Ukuba nasiphi na isiqwenga sezinto ezithobelayo sinokuwenza umsebenzi. Ndibone iiprojekthi ezininzi kakhulu apho i-gasket yaba yingcinga esemva, ekhokelela ekuvuzeni, ixesha lokuphumla, kunye neendleko zokufowuna. Ayikhe ibe 'litywina' nje; yinxalenye ebalwayo.

I-Material ayiloPhepha nje eliKhethekileyo

Awunakuvele ukhethe imathiriyeli kwitshathi kwaye uyibize ngosuku. Inkcazo inokuthi NBR 70 Shore A, kodwa sisiqalo nje eso. Ndikhumbula umsebenzi wendibano encinci yecompressor usebenzisa i-nitrile eqhelekileyo i-gasket. Iphumelele uvavanyo loxinzelelo, akukho ngxaki. Kodwa entsimini, kwiinyanga nje ezimbalwa, baqalisa ukulila ioli. Ingxaki yayingeyongcinezelo; yayiyipakethe yokongeza kwisithambiso esitsha sokwenziwa. Ibangele ukuba i-NBR idumbe ngokwaneleyo ukuba iphulukane namandla ayo okubamba. Itshathi ayikhange ichaze malunga nonxibelelwano oluthile lolwelo. Kwafuneka sitshintshele kwi-fluorocarbon-based material, eyayigqithise kakhulu ngenxa yoxinzelelo kodwa iyimfuneko ukuhambelana kweekhemikhali. Sifunda ntoni? Uvavanyo lwaseLab kunye nenkonzo yehlabathi lokwenyani inokuba zizilo ezibini ezahlukeneyo.

Emva koko kukho ubushushu. Wonke umntu ucinga ngesantya sokusebenza esizinzile. Oyena mbulali kukuhamba ngebhayisekile eshushu. I-flange iyatshisa, iyanda, i i-gasket icinezela ngakumbi. Iyaphola, izivumelwano, kwaye ukuba i i-gasket ayichacha, ufumana isithuba. Ndibe nempumelelo ngegraphite eyandisiweyo kwiimeko zomjikelo ophezulu, kodwa kuphela ukuba umphezulu weflange ulungile. Igudile kakhulu, kwaye ayikwazi ukubamba; rhabaxa kakhulu, kwaye iyazinzisa kwaye ilahlekelwe kukomelela. Sisenzo sokulinganisa osifundayo ngokudiliza iindibano ezingaphumelelanga kwaye ujonge amanqaku amangqina.

Apha kulapho ukukhangela kumenzi okhethekileyo kwenza umahluko obonakalayo. Ngokomzekelo, ukusebenza nenkampani efana I-Sunnian Zitai Festener Fishaner Comment Com., ebekwe kwisiseko semveliso yenxalenye enkulu yaseTshayina, ufumana ukufikelela kubunzulu benkqubo yolwazi. Ukusondela kwabo kunxibelelwano lwezothutho oluphambili olunje ngeBeijing-Guangzhou Railway kuthetha ukuba babone iintlobo ngeentlobo zeemfuno zezicelo. Ayikokwenza nje inxalenye; imalunga nokuqonda i-ecosystem ehlala kuyo-iiflange, iibholiti, ulandelelwano lwetorque ezidibana nazo zonke. i-gasket intsebenzo.

IFlange sisiqingatha sedabi

A ogqibeleleyo i-gasket kwi-flange embi kukuvuza okuqinisekisiweyo. Ukugqitywa komphezulu kubaluleke kakhulu, kodwa indlela ebaluleke ngayo ngaphezu kwenani leRa. Spiral finish, concentric, phonographic-nganye ibamba ikhompawundi yokutywina okanye ibambe i i-gasket ngokwahlukileyo. Kwimathiriyeli ethambileyo njengamashiti angeyo-asbestos, udinga izinyo elingakumbi ukunqanda ukuvuthela. Kwiintlobo zeebhatyi zetsimbi, ukugqiba ngokugqithiseleyo kuyafuneka ukuphepha ukusika i-filler ethambileyo.

Ukucaba ngomnye umbulali othuleyo. Siye saba neprojekthi yokubuyisela kwakhona kwezinye izitshintshi zobushushu ezindala. Entsha, imvulophu yePTFE esebenza kakhulu i-gaskets iqhubekile isilela. Emva kweeveki zokukrazula intloko, sibeka umgca ochanekileyo kwi-flange. Yayinesaphetha esincinci, mhlawumbi i-0.2mm ngaphezulu kwe-300mm, ukusuka kumashumi eminyaka yoxinzelelo lobushushu. Iigaskets zefayibha ezicinezelweyo ezindala ziye zahambelana nayo. Uyilo olutsha, olungqongqo ngakumbi alukwazanga. Ulungiso aluzange lube ngcono i-gasket; yayiphinda ilungisa ubuso beflange. Ngamanye amaxesha isisombululo siphezulu kwento yokutywina ngokwayo.

Ukuhanjiswa komthwalo webholt yeyona theory ilungileyo enqabileyo ekhoyo ekusebenzeni. Injongo kuxinzelelo olufanayo, kodwa ukujikeleza kwe-flange, isithuba sebholithi, kunye nolandelelwano lokuphosa izitshixo kwimisebenzi. Ndihlala ndinyanzelisa ipateni yokuqinisa ibholithi elawulwayo, ngokuqhelekileyo ipateni enqamlezayo kwiipasile ezininzi ukuya kwi-spec torque. Nangona kunjalo, ukusebenzisa i-hydraulic tensioner ngokuchasene ne-calibrated torque wrench kunokuvelisa iiprofayili zoxinzelelo ezahlukeneyo i-gasket. Bubugcisa obufana nenzululwazi.

Xa uMgangatho ungangeni

Ikhathalogu sisikhokelo, hayi ivangeli. Imilinganiselo ye-ASME B16.21 iyindawo yokuqala. Kodwa ndiye ndaphulukana nokubalwa kwamaxesha ekuye kwafuneka sihambe ngokungekho mgangathweni. Into eqhelekileyo bubunzima. Okutyebileyo akulunganga ukuchacha; kunokukhokelela ekuphumleni kwezilwanyana. Kodwa kunxibelelwano olune-flanged kunye nokungalungelelanisi okubalulekileyo okanye i-warpage, engqindilili kancinci, ecinezeleka ngakumbi i-gasket inokuba yipragmatic field fix de kube kucwangciswe ukulungiswa okufanelekileyo koomatshini.

Sake saba nomxhasi onokuvuza okuzingileyo kumgca omkhulu we-diameter, uxinzelelo oluphantsi. Babesebenzisa i-elastomeric sheet eyomeleziweyo eqhelekileyo esikwa endlwini. Ukuvuza bekukwindawo edibeneyo. Ukuhlolwa kwabonisa ukusika kwakucocekile, izinto eziphathekayo zichanekile. Ingxaki yayiluyilo oludibeneyo ngokwayo-i-flange elula yobuso. Kweso dayatha kunye nentshukumo ye-thermal yombhobho, idinga itywina elivaliweyo, elifana nomsele we-O-ring okanye ubuso obuphakanyisiweyo / inxeba elijikelezayo. Siye sabasa kwi kammprofile i-gasket, eyabonelela ngoqhagamshelwano lwetsimbi-yesinyithi kwingqibelelo yesakhiwo kunye nomgca wokutywina othambileyo we-micro-imperfections. Isisombululo esisemgangathweni sasingalunganga kwi-mechanics yendibano.

Apha kulapho isakhono somenzi sokusingatha izicelo zesiko sibaluleke kakhulu. Umthombo onje I-Sunnian Zitai Festener Fishaner Comment Com. ayingomthengisi nje wezinto ezingekho kwishelufu. Isikhundla sabo kwisiseko esikhulu semizi-mveliso sithetha ukuba bamiselwe ukusingatha ezi zicelo zincinci, zingekho mgangathweni ngokufanelekileyo. Ungaxoxa ngemowudi ethile yokusilela-ukukhwela, uhlaselo lwekhemikhali, ukuvuthuza-kwaye bahlala becebisa ukudityaniswa kwezinto okanye ulwakhiwo olusekwe kwimeko efanayo abaye badibana nayo. Ukujonga izixhobo zabo kwi https //wwww.ziitasteners.com zingakunika isiseko soluhlu lwazo olusemgangathweni, olukwazisa okwenzekayo kulungiselelwa.

Ukusilela ngoyena Mfundisi ubalaseleyo

Ufunda ngakumbi ekuvuzeni kunokusuka kwitywina eligqibeleleyo. Ipateni ibalisa ibali. Uphawu locinezelo olufanayo olulula kakhulu? Ngaphantsi kwetorque. Uphawu olunzima, olutyumkileyo kwelinye icala kunye nokukhanya kwelinye? Ukungahambi kakuhle kweFlange okanye umthwalo ongalinganiyo webholithi. Ukuhlaselwa kweekhemikhali ngokuqhelekileyo kubonisa njengokuqhekeka, ukudumba, okanye ukuguquka kobume. Ukwandiswa okanye ukuvuthela kwidayamitha yangaphakathi ikhomba kuxinzelelo olugqithisileyo okanye umsantsa omkhulu kakhulu i-gasket ubulukhuni.

Ndikhumbula ukusilela okuyintlekele kwindawo yovavanyo yecandelo lehydraulic. Inxeba elijikelezayo i-gasket (SS304/Graphite) yavuthela ngexesha lovavanyo lwe-spike yoxinzelelo. Ingcinga yokuqala: i-gasket yayinempazamo. Ukuhlolwa kwesidumbu kwabonisa ukuba umsesane wangaphakathi wawungaguquki, kodwa ujiko lwaluphelile. Oyena nobangela? Inkqubo yovavanyo yayibandakanya imijikelo yoxinzelelo olukhawulezayo oludale utshintsho oluncinci lweradial kwiiflange. Uyilo lwenxeba elijikelezayo alikwazanga ukumelana naloo ntshukumo yokucheba. Satshintshela kwisiseko sesinyithi esiqinileyo i-gasket Kwelo rig yovavanyo oluthile. Igasket yokuqala yayilungile kwinkonzo yesimo esizinzileyo, kodwa hayi imeko yovavanyo oluguqukayo.

Ukugcina ilayibrari yokusilela ngokomzimba kubaluleke kakhulu. Ibhokisi endala, i-gaskets evuzayo kunye namanqaku kwiimeko zenkonzo iluncedo ngakumbi kunayo nayiphi na incwadi. Inika ireferensi ebambekayo, ebonakalayo eqhuba indlela yokukhetha ekhaya. Ikukhumbuza ukuba i-gasket licandelo lenkqubo, hayi iplagi yomlingo.

Indlela yePragmatic yokuKhetha

Ke, ukhetha njani enye? Qala ngokucacileyo: imidiya, ubushushu, uxinzelelo. Kodwa ke drill phantsi. Ngaba sisifunxa esipheleleyo? Igraphite inokuba yingxaki ngenxa ye-sublimation enokwenzeka; unokufuna intsimbi-O-ring. Ngaba kukho ukuqhawulwa rhoqo? I-non-stick yokugquma njenge-PTFE kwinxeba elijikelezayo linokuthintela ukunamathela kunye nomonakalo. Iindleko ngumba, kodwa ixabiso lilonke lobunini yeyona metric yokwenyani. Igasket yefiber exineneyo enexabiso eliphantsi efuna ukutshintshwa ngakunye ukuvalwa ibiza kakhulu kuneemvulophu yeprimiyamu yePTFE ehlala iminyaka.

Musa ukuyihoya imeko yokufaka. Ngaba ligumbi elicocekileyo okanye iqonga elimdaka, elingaphesheya kolwandle? Inqanaba lesakhono somfaki libalulekile. I-kammprofile entsonkothileyo, ineleya ezininzi inokuba yeyona ilungileyo, kodwa ukuba abasebenzi abaqeqeshekanga ukuyiphatha, uyilo olulula lwerabha-ebotshelelwe-kwintsimbi lunokuthembeka ngakumbi kulo mxholo. Ukulula ukufakela yinto yokusebenza esemthethweni.

Ekugqibeleni, yakha ubudlelwane kunye nomthengisi wezobugcisa. Akunjalo nje ngokuthumela i-PO. Imalunga nokuba nencoko yababini apho unokuthi, Nasi isicelo sam, nantsi into eyasilelayo kwixesha elidlulileyo, kwaye banokubuya kunye neenketho. Nokuba ngaba ngumsasazi wasekhaya okanye uzibandakanya ngokuthe ngqo nemveliso egxile kwimveliso efana I-Sunnian Zitai Festener Fishaner Comment Com., ukuba ukusonjululwa kweengxaki ngentsebenziswano kulapho usuka ekuthengeni nje inxalenye ukuya kubunjineli isisombululo. Indawo abakuyo kwiSithili saseYongnian kuthetha ukuba babethelelwe kushishino, bajongana nemiceli mngeni yokutywinwa yokwenyani mihla le, ingeyiyo nje ithiyori. Olo lwazi lusebenzayo luhluza kuphuhliso lwabo lwemveliso kunye nenkxaso.

Ekugqibeleni, a i-gasket licandelo elithobekileyo elicelwe ukuba lenze umsebenzi ongenakwenzeka: gcwalisa umsantsa we-microscopic phakathi kwemigangatho emibini yentsimbi engafezekanga phantsi kweemeko eziguquguqukayo. Akukho mpendulo ichanekileyo, kuphela eyona nto ifanelekileyo kwimeko ekhoyo. Ubuchwephesha buxhomekeke ekwazini ukwenza olo lungelelwano ngempumelelo.