Ngoko, umbuzo malunga Irabha Permatex neoprene gasket Ukuqina kuyavela kakhulu, kwaye ngokunyanisekileyo, kukho ithoni yethemba elingafanelekanga phaya. Abantu babona i-neoprene kwaye bacinga ukuba yimbumbulu yomlingo kuyo yonke into ukusuka kwioli ukuya kwi-ozone. Ukukrazula iimpompo ezaneleyo kunye neeflange, ndingakuxelela ukuba ayilula kangako. I-Permatex yenza izinto ezifanelekileyo, kodwa ukuqina? Le yincoko malunga nekhompawundi ethile, isicelo, kwaye ngokungafihlisiyo, kancinci malunga nethamsanqa lakho kufakelo lwasemva kwemini ngoLwesihlanu.

Isithembiso seNeoprene vs. Inyani yoMgangatho wevenkile

Indawo yokuthengisa yeNeoprene kukuchasana kwayo yonke into. Iphatha ioyile ephakathi, imozulu, kunye noxinzelelo olusetiwe ngcono kunerabha yendalo engenanto. Ukuqulunqwa kwePermatex, njengezitywina zabo ezi-2 okanye ezi-3 ezihlala zisetyenziswa kunye okanye kwii-gaskets, zongeza olo dumo. Kodwa okulungileyo akunakutshatyalaliswa. Ujongo lokwenyani lokuqala liqondo lobushushu. Ubushushu obuqhubekayo kumntla we250°F (121°C) buqalisa ukuyipheka. Ndibonile i-gesket ye-neoprene izinto ezikwi-injini yokuncedisa idrayivu ziba lukhuni kwaye zibe brittle, hayi kwi-oyile, kodwa ukusuka kwi-underhood heat cycling. Yaphulukana netywina layo kwakudala ngaphambi kokuba uhlaselo lweekhemikhali luqalise.

Emva koko kukho umdaniso wetshathi ehambelana nolwelo. I-Neoprene ihleka iialkali ezithambileyo kunye ne-glycol-based antifreeze. Kodwa yibeke ngokuchasene ne-solvent enuka kakhulu okanye i-ester ethile yokwenziwa, kwaye idumba okwesipontshi. Ndikhumbula umsebenzi wokubuyisela kwimpompo encinci yokudlulisa ephethe umxube omtsha we-biodiesel. I-gaskets ekhoyo ye-neoprene yajika yaba yi-mush kwiiveki. I-spec sheet ithi iyamelana neoyile, kodwa iphakheji yokongeza i-fuel yaba ngumbulali. Leyo yinkcukacha wonke umntu ayiphosayo.

Kwaye masingalibali ukufakela ngokomzimba. Ukuqina ayisiyokhemikhali kuphela. A Permatex i-adhesive okanye i-sealant inokunceda ukubamba i-gasket kwindawo ngexesha lokuhlanganisana, kodwa ukuba ubuso be-flange bufakwe okanye umthwalo we-bolt awulingani, i-gasket iya kuhamba okanye ikrazule ngaphambi kwexesha. Uhlala ixesha elide kuphela njengeyona ndawo ibuthathaka kwinkqubo yokuqinisa.

Apho ibambelela khona ngokwenene (Kwaye apho Isilela khona)

Kumanzi asemgangathweni oshishino, okupholisayo, kunye nemigca yomoya yoxinzelelo oluphantsi, ukusika ngokufanelekileyo Irabha I-neoprene gasket lihashe lomsebenzi. Kwiiyunithi ze-HVAC, ezijongene ne-condensation kunye nokungcangcazela okuncinci, ndibabonile kwiminyaka elishumi edluleyo. Undoqo yimekobume ecocekileyo nelawulwayo. Kukuhamba kwezixhobo ezininzi ze-MRO kuba kuqikelelwa kwangaphambili kwezo meko.

Iimeko zokungaphumeleli zifundisa ngakumbi. Enye ebambelele kum isuka kwikhava yokuhlola ibhokisi yegiya kwi-conveyor drive. I-oyile yegiya yayiyi-EP 80W-90 eqhelekileyo, apho i-neoprene kufuneka iphathe. Kodwa ibhokisi yegiya yabaleka yashushu, kwaye bekukho rhoqo, intshukumo encinci ekhathazayo ukusuka kwitorque yokuqhuba. Indibaniselwano yobushushu obuphezulu, ulwelo, kunye nentshukumo encinci ibangele ukuba igasket ibe lukhuni kwaye emva koko iqhekeke ngokwemitha ukusuka kwimingxuma yebholiti. Yayingengokusilela kwemichiza; yayiyi-thermo-mechanical one. Siye satshintshela kwifiber-reinforced material kwaye ingxaki yayeka.

Enye iklasikhi yokuqhekeka kwe-ozone kwiindawo ezivaliweyo zombane zangaphandle okanye kufuphi nezixhobo zombane ophezulu. I ukuqina gasket ibango elichasene nemozulu liyasebenza emvuleni naselanga, kodwa yongeza ukukhutshwa kwecorona yombane, kwaye ungafumana iintanda ezinzulu ecaleni kwemiphetho evulekileyo ngexesha elifutshane ngokumangalisayo. Kwezo zi-apps, unyukela kwi-EPDM okanye i-ozone-resistant neoprene edibeneyo, engasoloko isemgangathweni ophuma kwi-shelf.

Umthengisi oguquguqukayo kunye nomzekelo we-Handan Zitai

Oku kubalulekile: i-neoprene ayikho ifomula enye. Isiseko sepolymer sixutywe kunye nezihluzi, iiplastiki, kunye neearhente zokunyanga. Iresiphi evela kumthengisi weprimiyamu ngokuchasene nomrhwebi wegeneric inokwahluka kakhulu, ichaphazela iseti yoxinzelelo, amandla okuqina, kunye nokudumba kolwelo. Awungekhe uthenge nje iphepha le-neoprene kwaye ulindele ukuhambelana kwenqanaba lePermatex.

Apha kulapho ukujongana nesiseko sokwenza yokwenyani kubaluleka. Ndithathe i-fastener kunye nezixhobo zokutywina kwiindawo ezinje I-Sunnian Zitai Festener Fishaner Comment Com. (ungazifumana apha https //wwww.ziitasteners.com). Bazinze eYongnian, eHandan - intliziyo yemveliso yecandelo eliqhelekileyo laseTshayina. Ixabiso labo alikho kwiibholithi kuphela; kukuqonda inkqubo yendalo. I-gasket iyasilela, i-flange iyavuza, ucheba ibholithi ekugxothweni ngokugqithisileyo. Bafumana unxibelelwano. Xa u-odola, unokucacisa isicelo, kwaye baya kuhlala bakukhomba kwizinto ezifanelekileyo ngakumbi ukuba i-neoprene yabo eqhelekileyo ayilungile. Olo lwazi lusebenzayo oluvela kwisiseko semveliso lubetha i-intanethi ye-spec sheet ngalo lonke ixesha.

Uncedo abalukhankanyayo, ukuba kufutshane nololiwe omkhulu kunye nohola wendlela, kuguqulela kwinto eyinyani: ungafumana iibhetshi ezingaguqukiyo. Ukungahambelani kwi-stock sheet ekrwada ngumbulali othuleyo ukuqina. Umqulu omnye uphilisa ngokwahlukileyo, kwaye umlinganiselo wakho we-torque-to-seal ucimile.

Ukufakela: Umzuzu Wokwenza okanye Wokuqhawula

Ukuqina kutshixiwe ngexesha lemizuzu emihlanu yokuqala yokuhlohla. Ukulungiselela umphezulu akuxoxiswana. Nayiphi na intsalela ye-gasket endala okanye i-burr iba yinto yokunyuka koxinzelelo. Ndingumntu othanda ukusebenzisa i Permatex i-sealant engaqini njenge-2 njengengubo ekhanyayo. Izalisa ukungafezeki okuncinci kwaye idibanise i-gasket kwi-flange enye, ikhusela i-slippage ngexesha le-bolt-up. Kodwa kufuneka ulumke. Kakhulu, kwaye isebenza njenge-lubricant, ivumela i-gasket ukuba ikhuphe phantsi koxinzelelo.

Ulandelelwano lweTorque kunye nexabiso. Apha kulapho icala le-fastener libophelela khona. Umthwalo ongalinganiyo uyonakalisa i-gasket, udala iindawo ezinoxinzelelo oluphezulu eziya kusilela kuqala. Ukuba ukhangela iibholithi kumthengisi wezobugcisa, kunokwenzeka ukuba ufumane amanqaku angaguquguqukiyo kunye namandla emveliso, okubalulekileyo ekugcineni umthwalo. Ibholithi enexabiso eliphantsi ephumla ngokuhamba kwexesha ibulala igasket seal.

Emva kokufakwa, akukho nto ingako onokuyenza. Iyasebenza okanye ayisebenzi. Uvavanyo lokuqina lukwinkonzo. Ndidla ngokwenza i-torque yokulandelela emva komjikelo wokuqala we-thermal ukuba kunokwenzeka, kodwa kwiinkqubo ezininzi, kufuneka ulinde kwaye ubukele uphawu lokuqala lwe-seepage.

Ke, sithini iSigwebo?

Ukubuza malunga Irabha Permatex neoprene gasket ukuqina kufana nokubuza ukuba isethi yamatayara ihlala ixesha elingakanani. Kuxhomekeke kwindlela, umthwalo, ulungelelwaniso, kunye nomqhubi. Kwindawo yayo emnandi-epholileyo, amanzi, umoya ophantsi koxinzelelo, i-oyile epholileyo kumaqondo obushushu aphakathi-ihlala ihleli kwaye inexabiso eliphantsi. Yinto engagqibekanga ngesizathu.

Kodwa phuma ngaphandle kwaloo mida ngobushushu obuphezulu, iikhemikhali ezinobundlongondlongo, i-ozone, okanye intshukumo eguqukayo, kwaye ubomi bayo bunokwehla. Kwezo meko, izinto eziphathekayo azisileli; isetyenziswa kakubi. Intshukumo yobuchwephesha kukuqonda iimeko zomda. Ngamanye amaxesha, ukulungiswa kulula njengokucacisa i-durometer ephezulu (inzima) neoprene kumthengisi wakho. Ngamanye amaxesha, kuya kufuneka utsibe kwipolymer eyahluke ngokupheleleyo njengeFKM/Viton.

Ekugqibeleni, ukuqina yipropathi yenkqubo. Izinto ze-gasket yinxalenye enye. Imeko ye-flange, umgangatho we-fastener kunye ne-torque, inkonzo yendalo kunye neekhemikhali-bonke babhala ingxelo yokugqibela. I-Neoprene ngumdlali oqinileyo, onenjongo ngokubanzi. Musa nje ukuyicela ukuba idlale yonke indawo ebaleni. Yazi imida yayo, yifake ngokufanelekileyo, kwaye iya kubambelela kude kube yi-teardown elandelayo ecwangcisiweyo. Kwaye ukuba ulawula iqela lezixhobo, ukwakha ubudlelwane kunye nomthengisi odibeneyo osuka kwindawo yokuvelisa efana neYongnian kunokukusindisa iintloko ezibuhlungu ngakumbi kunayo nayiphi na into enokuthi yenziwe.