Neoprene vs. Grafoil gaskets rau cov cua kub? 

Zoo, cia peb hla lub suab nrov. Yog tias koj tab tom nrhiav qhov no, tej zaum koj tab tom saib ntawm lub flange leaky los yog npaj tsim thiab cov specs tsuas yog hais tias kub-kub gasket. Lub ntxiab loj uas txhua tus neeg poob rau hauv yog xav tias roj hmab thiab kub kub tuaj yeem ua ke ntev. Lawv ua tsis tau. Neoprene tau cuam tshuam rau qee lub sijhawm ua haujlwm, tab sis qhov ntawd feem ntau yog kho sai rau kev ua tsis tiav. Grafoil? Nov yog lwm lub npe uas koj hnov. Tab sis nws tsis yog ib qho yooj yim los yog. Nws yog hais txog qhov twg thiab koj siv lawv li cas, thiab ncaj ncees, qee zaum koj yuav tsum tsis txhob siv ib yam.

Lub Neoprene Illusion hauv Kub Systems

Kuv yuav tsum tau blunt: siv tus qauv neoprene gaskets ntawm qhov tseeb high-temperature tso yog thov kom muaj teeb meem. Peb tab tom tham txog cov khoom uas koj tuaj yeem siv rau kev nqus cua lossis kab cua txias. Nws txoj kev ntxim nyiam yog yooj yim thiab foob, zoo rau qhov chaw tsis xwm yeem ntawm chav tsev kub. Tab sis tso pa tawm? Txawm hais tias lub cev qis qis dua 250 ° C (482 ° F) yooj yim, thiab neoprene pib tawv thiab tawg ib ncig ntawm 120-130 ° C. Kuv tau pom nws. Koj torque nws cia rau ntawm lub turbo downpipe, nws seals zoo rau thawj zaug pib. Ib lub lim tiam tom qab, tom qab ob peb lub voj voog cua sov, nws tau hloov mus rau hauv ib qho nkig, blackened disc. Lub foob tau ploj mus, koj tau txais qhov ticking tso pa tawm, thiab koj rov qab los hauv qab lub tsheb.

Muaj qhov tsis txaus ntseeg: qee qhov tshwj xeeb kub-kub neoprene sib xyaw muaj nyob, feem ntau nrog silicone, ntsuas siab dua. Tab sis hauv kuv qhov kev paub, txawm tias cov no muaj lub qab nthab. Lawv yuav ciaj sia nyob rau hauv ib tug muffler sib koom los yog ib tug tailpipe seem uas temps qis dua, hais sub-200 ° C. Tab sis rau headers, up-pipes, turbo manifolds - tsis nco qab nws. Lub thermal degradation yog thaum twg, tsis yog yog tias. Tus nqi ntawm gasket yog tsawg, tab sis tus nqi zog ntawm kev ua haujlwm ob zaug yog siab.

Qhov twg kuv zaum kawg pom lub neoprene gasket tsis zoo nkauj? Ib tug phooj ywg lub tsheb khiav nrog ib qho kev tso pa tawm. Nws siv lub neoprene donut gasket rau ntawm lub v-band clamp ze ntawm tus miv, xav tias lub clamp load yuav tuav nws. Nws tau ua, rau ob ntu. Lub tshav kub ua rau cov khoom ntws thiab compresses tsis sib xws, ua rau lub tshuab tawm thiab qhov tsis zoo ntawm qhov dej tawm ua ntej kev sib kho. Peb swapped nws rau ib tug zoo hlau gasket ntawm qhov chaw. Zaj Lus Qhia: Cov ntaub ntawv nco tseem ceeb. Neoprene poob nws thaum ci.

Grafoil: Mus-To, Tab sis Nrog Gripes

Grafoil gaskets, los yog ntau dua, saj zawg zog graphite gaskets, yog cov lus teb vim li cas. Lawv tuav qhov kub thiab txias zoo nkauj - peb tab tom tham txog kev pabcuam txuas ntxiv mus txog 450-500 ° C hauv cov huab cua tsis muaj oxidizing, txawm tias siab dua. Lawv ua raws li flange imperfections, uas yog ib tug lifesaver rau cov laus, me ntsis warped cam khwb cia manifolds. Koj bolt nws cia, nws squishes thiab puv lub microscopic hav. Qhov ntawd yog lawv lub zog tiag tiag.

Tab sis lawv muaj lawv tus kheej dab. Ua ntej yog creep so, los yog txias ntws. Thaum lub sij hawm, tshwj xeeb tshaj yog nyob rau hauv siab clamp load thiab kub, lub graphite yuav maj mam compress thiab nyias tawm. Yog tias koj lub bolts tsis muaj zog-rau-yield los yog koj tsis muaj lub caij nplooj ntoos hlav ntxhua khaub ncaws, lub clamping quab yuam poob, thiab koj tau xau. Kuv ib txwm pom zoo kom retorque tom qab thawj ob peb lub voj voog yog tias ua tau. Qhov thib ob, thiab qhov no yog qhov tseem ceeb: lawv tsis nyiam ncaj qha, siab tshaj tawm cov pa tso pa tawm. Lub graphite tuaj yeem raug tshuab tawm yog tias muaj qhov sib txawv loj lossis tsis zoo. Kuv ib txwm xyuas flange ntsej muag rau parallelism ua ntej txhim kho.

Lwm qhov teeb meem yog tuav. Ntshiab graphite yog mos. Yog tias koj tab tom txhim kho lub grafoil gasket rau ntawm txoj kab ntsug lossis lub taub hau flange, nws tuaj yeem ua rau mob rau hauv qhov chaw thaum koj pib lub bolts. Ib txhia tuaj nrog ib tug perforated steel core los yog tacky adhesive backings, uas pab. Cov uas muaj stainless hlau ntxig yog muaj zog dua tab sis tsawg conformable. Nws yog kev sib pauv.

Oxidation thiab tsis nco qab Factor

Ntawm no yog qhov nthuav dav ntau yam nco: oxidation. Hauv cov kwj deg uas muaj oxygen ntau, graphite tuaj yeem oxidize maj mam siab tshaj 400 ° C, tshwj xeeb tshaj yog nyob rau ntawm ntug. Nws hloov mus rau hmoov tshauv, thinning lub gasket. Qhov no feem ntau tsis yog kev puas tsuaj loj ntawm lub tsheb hauv txoj kev, tab sis ntawm daim ntawv thov kev thauj khoom siab-xav tias lub tshuab hluav taws xob khiav ntawm lub peev xwm rau hnub-nws tuaj yeem yog cov khoom hnav. Kuv tau rub cov grafoil gaskets los ntawm cov turbo vaj tse uas yog thinner nyob rau hauv kub sab hauv ntug. Rau cov chaw huab cua no, txheej txheej hlau gasket yuav zoo dua.

Thaum Tsis Yog Cov Lus Teb Zoo

Qhov no yog qhov chaw tiag tiag hauv kev ncaws pob. Muaj cov xwm txheej uas ob qho tib si neoprene thiab grafoil yog cov kev xaiv tsis zoo. Ib qho yog rau qhov kub thiab txias heev, cov pob qij txha muaj zog, xws li nruab nrab ntawm lub turbocharger vaj tse thiab cov manifold. Ntawm no, ntau txheej hlau (MLS) gaskets yog huab tais. Lawv tsis nkag mus, ua haujlwm thermal cycling ci ntsa iab, thiab tiv thaiv lub tshuab tawm.

Lwm qhov yog rau flanges nrog qhov khoob loj lossis tsis zoo. Cov khoom siv tsis yog qhov sib txawv-filler. Neoprene yuav extrude thiab poob; grafoil yuav tshuab tawm los yog crush unevenly. Kev kho yog siv lub flange los yog siv cov khoom tuab, zoo dua li cov khoom siv ceramic-reinforced composite. Kuv kawm qhov no txoj kev nyuaj ntawm kev lag luam boiler tso damper. Peb sim ib daim ntawv tuab grafoil, tab sis lub flange warpage yog tshaj 1 hli. Nws leaked tam sim ntawd. Qhov kev daws teeb meem yog rov ua dua lub flange thiab siv lub corrugated hlau gasket nrog graphite muab tub lim - ib qho kev daws teeb meem ntau dua.

Qee zaum, cov lus teb tsis muaj gasket txhua. Kev ua kom zoo, tiaj tus, thiab du hlau-rau-hlau pob qij txha nrog lub siab kub los tiv thaiv los yog sealant (xws li cov khoom siv tooj liab tshwj xeeb) tuaj yeem txhim khu kev ntseeg tau ntau dua rau qee qhov kev sib txuas V-band lossis lub ntsej muag tiaj tus, tshem tawm qhov tsis muaj zog txuas ntawm cov khoom siv sib xyaw ua ke.

Kev tsim khoom thiab kev ua tau zoo

Koj tuaj yeem yuav cov gaskets no nyob qhov twg, tab sis qhov zoo sib txawv wildly. Pheej yig grafoil tuaj yeem muaj impurities lossis tsis sib xws, ua rau kub kub thiab tsis ua haujlwm. Rau cov ntawv thov tseem ceeb, kuv lo nrog cov npe paub lossis cov chaw muag khoom uas muab cov khoom specs. Nws tseem tsim nyog xav txog lub kaw lus fastener ua ib feem ntawm kev sib khi. Ib tug tsis muaj zog ntsia liaj qhov rooj uas stretches nrog tshav kub lov lub clamp load. Tias yog vim li cas rau kev tso pa tawm ua haujlwm, Kuv feem ntau muab khoom siv los ntawm cov kws tshaj lij uas nkag siab txog qhov xav tau thermal, xws li HANDAN ZITAI FREWER RAUG UA MOV., Ltd.. Lawv nyob hauv Yongnian, lub hub ntawm Tuam Tshoj, thiab muab kev lag luam ntau. Paub txog koj cov bolts thiab studs los ntawm lub hauv paus loj ntau lawm nrog kev tswj nruj, siv tau los ntawm lawv qhov chaw ntawm https://www.zitaifasteners.com, txhais tau hais tias ib qho tsis tshua muaj kev txhawj xeeb txog thaum lub rooj sib txoos tag nrho yog cua sov thiab txias dua.

Nyob rau hauv pem teb khw, kuv txoj cai ntawm tus ntiv tes xoo yog qhov no: rau feem ntau txoj kev tso pa ua hauj lwm tom qab catalyst qhov twg temps yog nruab nrab (hauv qab 350 ° C), ib tug zoo grafoil gasket zoo kawg nkaus. Tsuas yog nruab nws ntawm qhov chaw huv, tiaj tus thiab retorque. Rau pre-catalyst, turbo, los yog header daim ntaub ntawv, kuv lean ntawm txheej hlau los yog cov khoom hlau gaskets. Neoprene? Kuv khaws cia rau cov kav dej, npog, thiab txhua yam uas nyob twj ywm txias. Nws yog hais txog kev sib piv cov ntaub ntawv qhov tseeb rau qhov system txoj kev phem. Cov cua sov tsis sib haum xeeb.

Thaum kawg: Nws yog qhov system, tsis yog ib feem

Yog li, neoprene vs. grafoil? Nws tsis yog qhov sib piv tiag tiag. Lawv yog cov cuab yeej rau kev ua haujlwm sib txawv. Neoprene yog rau qis-kub, zoo li qub sealing. Grafoil yog rau conformable, high-temper sealing qhov twg tej yam kev mob tsis heev. Qhov kev ua haujlwm tiag tiag yog kuaj xyuas tag nrho cov kev sib koom ua ke: qhov kub thiab txias profile, flange mob, bolt zoo, thiab thermal cycling. Kuv tau nkim sijhawm thiab nyiaj los liam cov ntaub ntawv gasket thaum qhov teeb meem yog warped flange lossis tsis txaus clamping quab yuam.

Kuv lub tswv yim? Tsis txhob cia li xaiv raws li kev pom zoo dav dav. Xav txog qhov chaw tshwj xeeb hauv cov kwj deg, qhov kub siab tshaj plaws nws yuav pom, thiab qhov tshwm sim ntawm qhov xau. Qee lub sij hawm, siv peb zaug ntau dua ntawm cov nqi ntau txheej hlau gasket rau qhov tseem ceeb turbo flange yog qhov kev xaiv pheej yig tshaj plaws hauv lub sijhawm ntev vim tias koj tsuas ua haujlwm ib zaug xwb. Thiab ib txwm, ib txwm pib nrog qhov zoo, tiaj tus nto thiab txoj cai fasteners rau lub tshav kub. Txhua yam ua rau lub hauv paus ntawd.