Kukhazikika kwa gasket yamagetsi m'malo ovuta? 

Tiyeni tidutse: ngati mukuganiza kuti magalasi opangidwa ndi electrogalvanized ndi odalirika kwanthawi yayitali opopera mchere, kukhudzana ndi mankhwala, kapena chinyezi chambiri, ndiye kuti mukudzipangira nokha kulephera kwamunda. Funso lenileni siliri la zokutira lokha, koma za mitundu yolephera yomwe imanyalanyazidwa mpaka itachedwa.

Chidaliro Chosokonekera Mugawo la Micron-Thin

Ndaziwona izi nthawi zambiri. Zolembazo zimafuna malata, ndipo electrogalvanizing imamveka chifukwa ndiyotsika mtengo komanso ikuwoneka bwino pashelufu-yabwino komanso yonyezimira. Lingaliro ndikuti zonse ndi zinc, choncho ziyenera kupereka chitetezo chofanana. Ndilo msampha woyamba. Electrogalvanizing kwenikweni ndi njira ya electrolytic yomwe imayika chowonda, ngakhale wosanjikiza, nthawi zambiri mozungulira ma microns 5-10. Ndizowoneka bwino ndipo zimapereka chitetezo chokwanira ku dzimbiri lowuma la mumlengalenga. Koma kwenikweni malo ovuta- Ganizirani za nsanja za m'mphepete mwa nyanja, mizere yopangira mankhwala, kapena kutsika kwa makina m'malo ochotsa icing - kuti chidalirocho chimasanduka nthunzi mwachangu. Chosanjikizacho ndi choonda kwambiri kuti chitha kupereka nsembe yochuluka ya anode itasokonezedwa.

Kulephera sikumayamba ngati dzimbiri wamba. Nthawi zambiri ndi kuukira kwapang'onopang'ono. Kukandira pakuyika, kang'ono kakang'ono kopangidwa, kapenanso m'mphepete pomwe zokutira zimakhala zowonda mwachilengedwe zimakhala poyambira. Mu galvanizing yotentha, zokutira zokhuthala ndi zigawo za iron-zinc alloy zimatha kuteteza chitsulo pongoyambira. M'magawo opangidwa ndi electrogalvanized, kuphwanya kumafika pazitsulo zoyambira nthawi yomweyo. Kuchokera pamenepo, dzimbiri zapansi panthaka zimayenda, ndipo zinki sizingatetezere dera lalikulu chifukwa mulibe zinki zokwanira. Mumatuluka dzimbiri ndikutuluka pansi pa nthaka yosanjikiza ya zinki, yomwe ndi yovuta kuiwona.

Tinayesa mbali ndi mbali zaka zapitazo, osati ngakhale zasayansi, tikungopachika zitsanzo pampanda pafupi ndi malo opangira madzi onyansa. Zitsanzo zoviyitsa zotentha zinawonetsa dzimbiri loyera (zinc oxide) pambuyo pa miyezi 6 koma palibe dzimbiri lofiira. The electrogalvanized gasket zitsanzo? Anayamba kuwonetsa madontho ofiira a dzimbiri pamabowo a bolt ndikudula m'mphepete mkati mwa masiku 90. Pofika mwezi wa 8, dzimbiri linali litafala. Chophimba chopyapyalacho, chofananacho ndi mdani wake yemwe—palibe kukhuthala kowonjezera m’mbali mwake.

Kumene Electrogalvanized Ikhoza Kuyimilira (ndipo Pomwe Sipadzakhala)

Si zonse zoipa ndi zachisoni. Pali malo olamulidwa omwe electrogalvanizing ndi yokwanira komanso yotsika mtengo. Zopangira m'nyumba zokhazikika, zonyowa pang'ono, kapena zomangira zomata kuchokera mumlengalenga (monga mkati mwa mpanda wina wamagetsi wokhala ndi zisindikizo za gasket). Chinsinsi chake ndi kusowa kwa chinyezi chosalekeza kapena mankhwala owopsa. Ndazifotokozera za kulumikizana kwamkati m'mashelufu osungira, mwachitsanzo. nzabwino.

Malo osapitako ndi aliwonse okhudzana ndi ma kloridi, kuuma kwamadzi pafupipafupi, kapena utsi wa acidic/alkaline. Ndikukumbukira pulojekiti yomwe inali ndi ma ductwork m'fakitale yopangira chakudya yokhala ndi acidic condensate yocheperako. Katswiriyu adatchula ma gaskets opangidwa ndi ma electrogalvanized pama flanges onse. Iwo ankawoneka angwiro pa unsembe. Pasanathe chaka chimodzi, tinakhala ndi kutayikira m'malo ambiri. Ma gaskets anali atachita dzimbiri mpaka kutaya mphamvu yotseka ndikusindikiza kukhulupirika. Zopangira dzimbiri (dzimbiri) zidakhalanso ndi voliyumu yochulukirapo, zomwe zimatha kuwonjezera kuchuluka kwa bawuti, koma zowona, zidangophwanya zinthu zomwe zidawonongeka. Kukonzekeraku kunali kutsekedwa kwathunthu ndikusinthidwa ndi gaskets 316 zosapanga dzimbiri - phunziro lopweteka pamtengo wokhazikika.

Chinthu china chomwe chimanyalanyazidwa nthawi zambiri ndi kuyanjana kwa galvanic. Pambani ndi electrogalvanized gasket ndi flange yachitsulo chosapanga dzimbiri ndi bawuti pamalo onyowa, ndipo mwapanga batire. Zinc (anodic) idzawononga makamaka kuteteza zosapanga dzimbiri (cathodic). Izi zitha kufulumizitsa kumwa kwa nthaka yopyapyalayo pamlingo wowopsa. Pokonzekera kotereku, mungakhale bwino kukhala ndi gasket yachitsulo ya carbon plain ndi kudalira kukhudzidwa kwa zosapanga dzimbiri, kapena kupitilira apo, kufanana ndi zipangizo zonse. Mfundo ndi yakuti, gasket singakhoze kusankhidwa payekha.

Mawonedwe a Wopereka ndi Zinthu Zowona

Kulankhula ndi opanga kumawunikira zopinga zothandiza. Kwa ma voliyumu apamwamba, magawo okhazikika, electrogalvanizing ndi mfumu chifukwa cha liwiro, mtengo, ndi kumalizidwa kodzikongoletsera. Kampani ngati Malingaliro a kampani Handan Zitai Fastener Manufacturing Co., Ltd., yochokera kumalo opangira ma fasteners ku China ku Yongnian, Hebei, imatha kuyendetsa magulu akuluakulu amagetsi okhazikika kudzera mumizere yopangira ma electroplating bwino. Malo omwe ali pafupi ndi misewu yayikulu yamayendedwe monga Beijing-Guangzhou Railway ndi National Highway 107 ndi mwayi wopereka zida zotsika mtengo komanso zokwera kwambiri padziko lonse lapansi. Mutha kuyang'ana zopereka zawo zokhazikika patsamba lawo https://www.zitaifasteners.com. Kwa iwo, ndi njira yokhazikika yomwe imakwaniritsa gawo lalikulu la zosowa za msika.

Komabe, mukangoyang'ana zofunikira zaukadaulo pantchito yankhanza, zokambirana zimasintha. Othandizira omwewo nthawi zambiri amalangiza kuti achoke pamagetsi oyera amagetsi kuti agwiritse ntchito zovuta. Atha kuwonetsa chithandizo cham'mbuyo monga zokutira zosintha za chromate (zachikasu, buluu, kapena zowoneka bwino) zomwe zimawonjezera kusanja kwa dzimbiri podutsa pamwamba pa nthaka. Izi zimathandiza kuchedwetsa kuyambika kwa dzimbiri loyera komanso, pang'ono, dzimbiri lofiira. Koma ndikuchedwa, osati kusintha kwakukulu kwa makulidwe a zokutira kapena mphamvu ya nsembe. Pamtengo wochulukirapo, zokutira za zinc-flake (monga Geomet kapena Delta Protekt) zimapereka magwiridwe antchito apamwamba kwambiri, popeza zimamanga wosanjikiza wokulirapo, wosamva zotchinga womwe ulinso ndi ma aluminium flakes. Koma tsopano mukuchoka ku malo otsika mtengo kwambiri.

Zotengera? Supply chain imakonzedwa kuti ikhale yokhazikika. Kutchula malo ovuta kumatanthauza kuti muyenera kusiya kusankha mulingo ndikuchita nawo dongosolo lapadera, zomwe zimakhudza nthawi yotsogolera ndi mtengo wake. Ndiko kusinthanitsa ma projekiti ambiri amalakwika mu gawo la uinjiniya wamtengo wapatali.

Case in Point: Retrofit Imene Inatiphunzitsa Kwambiri Kuposa Kulephera Koyamba

Tinali ndi ntchito yobwezeretsanso mapaipi akunja mu malo opangira mafuta. Ma gaskets oyambirira anali chitsulo cha carbon plain, ndipo anali olimba mpaka ku flanges, zomwe zimafuna ntchito yowunikira kuchotsa. Kugwedezeka kwa mawondo kunali kukweza ku electrogalvanized kuti asamamatire. Tinatero. Zaka ziwiri pambuyo pake, posintha, tidapeza kuti ma gaskets atsopano sanatsekeredwe, koma anali ochita dzimbiri kwambiri, ndikutayika kwakukulu. Malo osindikizira anali opindika komanso osafanana.

Chilengedwecho chinali chophatikizira chakupha: mayendedwe a nthunzi pang'onopang'ono (kutentha ndi chinyezi), mankhwala ozungulira sulfure mumlengalenga, ndi mchere wam'mphepete mwa nyanja. Chophimba cha electrogalvanized chinali chapita kale. Kuwunika kwa post-mortem kunatsimikizira kuti zinc wosanjikiza woondayo adadyedwa mwachangu m'chaka choyamba. Chitsulo chotsalira chotsaliracho chinachita dzimbiri mothamanga kwambiri, mwina chifukwa cha ntchito ya galvanic yoyambirira komanso chilengedwe chankhanza. Kukwezaku kunatipatsa lingaliro labodza lachitetezo ndikupangitsa kuti pakhale malo omata kwambiri kuposa ngati tidagwiritsa ntchito zokutira zokulirapo, zolimba kuyambira pachiyambi, kapena zinthu zina zonse.

Kulephera kumeneko kunatikankhira kufotokoza za malata otentha (mosamala mololera pang'onopang'ono ndi kudontha) kapena zinc-flake pazintchito zankhanza za m'malire. Pazifukwa zoopsa kwambiri, tinalumpha zitsulo za kaboni zokutidwa ndi kusamukira ku aluminiyamu kapena zitsulo zosapanga dzimbiri, ngakhale kuti mtengo wake unakwera. Mtengo wonse wa kutayikira kapena kutseka kosakonzekera kumatsitsa mtengo wazinthu za gasket.

Zotengera Zothandiza ndi Kufotokozera ndi Eyes Open

Kotero, chigamulocho chinali chiyani electrogalvanized gasket durability? Inde, ndi zovomerezeka, ndi chenjezo lalikulu. Muyenera kufotokozera mwaukali kwambiri. Kodi ndi condensation wa apo ndi apo, kapena ndi utsi wolunjika? Kodi ndi pH yopanda ndale, kapena yotsika pang'ono? Kutentha kozungulira ndi kotani? Izi ndizofunika kwambiri kuposa zilembo zazikulu.

Lamulo langa loyipa la chala changa: Ngati chilengedwe chikuwononga mokwanira kuti chingafunike zambiri kuposa ntchito yopaka utoto pazitsulo zozungulira, ndiye kuti ma electrogalvanized okha pa gawo losindikiza lofunika kwambiri ndi juga. Lingalirani kuti ndi chitetezo chodzikongoletsera kapena chochepetsera pang'ono, osati njira yolimba yopewera dzimbiri. Nthawi zonse ganizirani zotsatira za kulephera. Kulephera kwa gasket pagawo lofikira ndikokhumudwitsa. Gasket yemweyo akulephera pamzere wothamanga kwambiri wamafuta ndi tsoka.

Pomaliza, lembani chilengedwe muzolemba zanu. Osangolemba malata. Tchulani ndondomekoyi (yopangidwa ndi electrogalvanized pa ASTM B633, Type I, Fe/Zn 5), ndipo ngati n'kotheka, mufunika zokutira zosintha za chromate (Mtundu Wachiwiri) kuti muthe kukana kwambiri. Kapena, bwinobe, tanthauzirani maola oyesera amchere kuti alephereke (mwachitsanzo, ASTM B117). Maola 96 opanda dzimbiri ofiira ndi osiyana kwambiri ndi maola 500. Izi zimakakamiza kukambirana mozama kwambiri ndi omwe akukupangirani, kaya ndi wopanga wamkulu ngati Handan Zitai yemwe watchulidwa pamwambapa kapena wogawa wakomweko. Imasuntha zokambirana kuchokera kuzinthu zopangira zinthu, zomwe ndizomwe zimafunikira kukhala gasket pamalo ovuta.