Bari mu yanke ta hanyar tallan tallace-tallace. Lokacin da wani ya yi tambaya game da dorewar ƙullun sinadarai masu zafi, yawanci suna fatan samun amsa har abada. Gaskiyar ita ce mafi muni, kuma ainihin tambaya ba kawai game da suturar zinc ba ne, amma abin da ke faruwa a wurin dubawa inda kullun, m, da yanayin duk sun hadu.

Kuskuren Katanga

Yawancin ƙayyadaddun bayanai kawai suna lissafin kaurin galvanizing, a ce, 85 microns a kowane gefe. Wannan farawa mai kyau ne, amma lambar wucewa ce. Inda na ga ayyukan sun tabarbare yana ɗaukan cewa kauri wani nau'i ne, garkuwar da ba ta da ƙarfi. Ba haka ba. Ka yi tunani game da joometry na bolt-tushen zaren, radius na ƙarƙashin kai, filaye masu murɗa. Ruwan zinc yayin tsomawa zai iya zama sirara a cikin waɗannan wuraren shakatawa. Idan rami mai matsewar ku yana da ƙarfi ko kuma kun sami shigarwar gaggawa wanda ke goge rufin daga zaren yayin sakawa, kun ƙirƙiri ƙaramin rukunin yanar gizo don ƙaddamar da lalata, ba tare da la’akari da ƙayyadaddun ƙididdiga ba. Agogon karrewa yana farawa da sauri a can.

Sannan akwai mannen sinadari da kanta. Ba duk resins aka halicce su daidai ba. Wasu vinyl ester ko tsantsa epoxy formulations na iya samun pH ko ƙunsar wasu amines waɗanda, a cikin yanayi mai dausayi koyaushe, na iya shafar tsarin zinc cikin shekaru da yawa. Ban ga gazawar bala'i daga wannan kaɗai ba, amma a cikin yanayi mai wadatar chloride-kamar garejin ajiye motoci inda ake amfani da gishiri mai ƙazanta-haɗin shine mai kisa. Gishirin suna haifar da jika, electrolyte mai ɗaukar nauyi wanda ke gada daga madaidaicin ramin siminti zuwa aron. Zinc yana sadaukar da kansa, wanda shine aikinsa, amma ƙimar yana haɓaka.

Wani ciwon kai na gaske a duniya da na ci karo da shi shi ne a kan titin jirgin ruwa na bakin teku. An ayyana kusoshi a matsayin HDG, kuma mannen samfuri ne na sama. Duk da haka, a cikin shekaru 7, mun sami tsatsa tana kuka a saman simintin kusa da injin wanki. Binciken da aka cire bayan cirewa (aiki mara kyau, mai tsada) ya nuna cewa zinc ya kasance cikakke a kan shank, amma gaba ɗaya ya tafi akan ƴan zaren farko da aka saka a cikin siminti. Hanyar gazawa? Danshi mai ɗimbin gishiri ya ɓata ta hanyar fashe-fashe a cikin siminti, yana mai da hankali kan ƙirar manne-zuwa-zaren. Zinc galvanically yana kare murfin karfe, amma ya lalace inda aka fi buƙata. Darasin ba shine HDG yayi kyau ba, amma cewa dorewansa ya dogara da tsarin.

Adhesive Bond & The Hidden Gap

Wannan shi ne crux cewa kasida ba sa magana a kai. Ƙarfin sinadari yana fitowa ne daga haɗin kai tsakanin guduro da karfe. Santsi, sabo da tutiya saman yana da kyau don kariyar lalata, amma shin shine mafi kyawun saman don haɗin haɗin ginin? Wasu masana'antun manne za su gaya maka ka goge murfin zinc a cikin yankin haɗin gwiwa don iyakar aiki. Wannan yana da alama rashin fahimta, daidai? Kuna cire kariya don samun ƙarfi. Kasuwanci ne wanda ke buƙatar hukuncin injiniya bisa ga ajin fallasa.

Na tuna wani mai kaya, Hannun Zetai Mretering co., Ltd. (zaka iya samun zangon su a https://www.zitaifaseners.com), da zarar an tattauna wannan batu. An kafa shi a Yongnian, babban cibiyar mai ɗaukar hoto a Hebei, suna ganin yawancin albarkatun ƙasa da masu canjin sarrafawa. Sun lura cewa don ƙwanƙwasa sinadarai masu zafi-tsoma waɗanda aka ƙaddara don mahalli masu tayar da hankali, wani lokaci suna ba da shawarar haske, sarrafa fashewar fashewar bayan-galvanizing don haɓaka bayanin martaba don haɗin gwiwa, ba tare da lalata kariyar lalata ba. Mataki ne mai mahimmanci wanda ke ƙara farashi, don haka ba ya sanya shi cikin kowane ma'auni na ƙididdiga, amma yana magana da fahimtar ƙasa na ainihin aikin samfurin.

Boyewar tazarar wani kisa ne mai ɗorewa na mai sakawa. Idan ba a tsaftace ramin da kyau ba-hakika, da kyau, tare da goga da iska-zaka sami ƙurar ƙura tsakanin manne da kankare. Ko kuma, idan ba a yi allurar da manne daidai ba, yana barin fanko a kusa da kullin. Wannan ratar ya zama tafki mai danshi. Ko da kauri zafi-digo galvanized shafi, tarko ruwa tare da oxygen iya haifar da crevice lalata, a gida da kuma m nau'i na hari. Na yanke ƙullun da suka yi kyau a waje amma suna da rami mai tsanani a cikin waɗannan ɓoyayyun aljihunan iska.

Ayyukan Dogon Lokaci vs. Gwajin Gaggawa

Sakamakon gwajin fesa gishiri-kamar tsatsa na sa'o'i 1000 - kayan aiki ne mai kyau na kwatanta amma rashin hangen nesa na tsawon shekaru da yawa na duniya. Gwajin yana ci gaba kuma yana da muni. Muhalli na gaske suna da busassun hawan keke. A lokacin busassun sake zagayowar, samfuran lalata na zinc na iya samar da patina mai karewa, rage jinkirin ƙarin harin. Dorewa sau da yawa yana da kyau a zahiri fiye da gwajin feshin gishiri ya nuna, muddin akwai waɗannan lokutan bushewa.

Koyaya, a cikin damshi na dindindin, yanayin hawan keke na thermal, kamar ƙarƙashin bene gada, labarin yana canzawa. Ƙunƙarar ruwa, rashin zubar da ruwa, da yanayin zafi da ke sa kulin numfashi ya jawo danshi a ciki da waje. Wannan shi ne inda na lura da raguwar zinc ya fi layi. Mun lura da wasu wuraren ankawo matakan shiga kan tsarin dam. The zafi-divanized chemets ya nuna tsinkaya, har ma da asarar zinc sama da shekaru 15, yana ba da izinin tsarin kulawa da aka tsara. Makullin shine yanayin ya kasance mai tsauri amma akai-akai, ba tsaka-tsaki ba.

Gaggauta gwaje-gwaje kuma sun rasa lalacewar injina. Jijjiga, jujjuyawar kaya kaɗan, haɓakar zafin jiki na bakin karfe da siminti. Wannan ƙananan motsi na iya karaya gaggauts na zinc-iron intermetallic yadudduka, fallasa sabon karfe. Da zarar wannan ya faru, aikin hadaya na zinc ya zama yanki kuma yana da ƙarfi a wannan fashewa.

Lokacin da Mai Kyau bai isa ba - Farashin Ƙimar Ƙimar

Tuba don karrewa na iya haifar da wuce gona da iri. Na ga ƙayyadaddun bayanai da ke kira ga ƙullun sinadarai na HDG a cikin bushewa, ciki, yanayin yanayin da ake sarrafa su. Kuna biyan tsarin kariyar lalata da ba za a taɓa kunnawa ba. Dorewa ba shi da iyaka, amma haka zai zama a fili karafan karafa a cikin wannan saitin. Zinc ɗin bai ƙara darajar a can ba.

Sabanin haka, a cikin yanayin masana'antu masu lalata (tsaran sinadarai, masana'antar takarda), daidaitaccen HDG na iya zama zaɓi mara kyau daga farko. Rufin sa karko yayi ƙasa sosai. Anan, kuna iya buƙatar tsarin duplex: tsoma galvanized mai zafi tare da gashin foda mai inganci mai inganci. Zinc yana ba da kariya ta cathodic idan rufin ya lalace (babban ƙari), kuma epoxy yana samar da shinge mai kauri da yawa. Ya fi tsada, amma game da ƙira don rayuwar sabis ɗin da ake buƙata. Ƙoƙarin yin daidaitaccen kullin HDG na tsawon shekaru 50 a cikin wannan muhallin girke-girke ne na gazawar da wuri.

Wannan shi ne inda darajar masana'anta mai ilimi ke shigowa. Kamfani kamar Handan Zitai Fastener, wanda ke cikin mafi girman ma'auni na sashin samar da kayayyaki na kasar Sin tare da hanyoyin haɗin gwiwar sa, ba masana'anta ba ne kawai. Suna aiwatar da oda marasa adadi don mahalli daban-daban. Kyakkyawan tattaunawa ta fasaha tare da su na iya nisantar da ku daga yin amfani da samfur na ciki zuwa aikin bakin ruwa, ko kuma daga kashe-kashen kashe-kashe akan tsarin ma'aunin ruwa don rumbun ajiya. Halayensu, wanda aka kafa cikin girma da iri-iri, yana ƙara fa'ida mai amfani ga bayanan dorewa na ka'idar.

Hukuncin: Tsari ne, Ba Kansa ba

Don haka, koma ga ainihin tambayar. Karkarwar a zafi-dima galvanized bolt ba lamba ɗaya ba ce. Yana da sakamakon: inganci da daidaito na galvanizing (kauri mai rufi, ɗaukar hoto), dacewa da shigarwa mai dacewa na m, shirye-shiryen simintin siminti, da ƙayyadaddun yanayin muhalli (chlorides, hawan zafi, zazzabi).

Daga abin da na gani a kan shafukan yanar gizo da kuma a cikin bayanan bayan mutuwa, kullun da aka yi da galvanized mai kyau (tare da kulawa da hankali ga zaren zaren), wanda aka haɗa tare da manne mai dacewa da aka shigar da shi ba tare da izini ba a cikin yanayi mai tsaka-tsaki, zai iya samar da rayuwar sabis na shekaru 30+ cikin sauƙi. Rashin gazawar kusan ko da yaushe yana komawa zuwa ga sasantawa a cikin ɗayan waɗannan hanyoyin haɗin tsarin-sau da yawa shigarwa, wani lokacin rashin daidaituwa ta musamman.

Don haka, kar a duba takardar shedar bolt kawai. Ka yi tunani game da dukan taron. Ƙayyade hanyoyin tsaftace rami. Yi la'akari da yanayin da gaske. Kuma ku fahimci cewa zinc yana sadaukar da kansa don kare karfe; A zahiri ana siffanta ƙarfin sa ta nawa kuke son barin lalata. Zane kuma ƙayyade tare da wannan amfani a zuciyarsa, kuma za ku sami aikin da kuke biya.