Electro-galvanized bolts: dorewa don amfanin waje? 

Kuna ganin wannan tambayar ta tashi cikin ƙayyadaddun bayanai da RFQs koyaushe. Amsar gajere, mai jaraba sau da yawa a ce, tana da lullubi da zinc, yana da kyau. Amma idan kun kasance a kan rukunin yanar gizon kallon shekarun tsarin, ko mafi muni, suna ma'amala da sake kira akan haɗin da ya gaza, kun san yana da wuya haka. Amsar ta ainihi tana rayuwa cikin cikakkun bayanai na yanayi, ingancin plating, kuma a zahiri, abin da dorewa a zahiri yake nufi ga tsawon rayuwar aikin tare da kasancewa kawai kalmar buzz ɗin kore. Mu kwance wannan.

Lalacewa da Haƙiƙanin Tushen Zinc

Electro-galvanizing yana da ban sha'awa don dalili. Gabaɗaya ya fi tsada-tasiri fiye da galvanizing-tsoma mai zafi kuma yana ba da tsaftataccen ƙarewa mai santsi wanda yayi kyau daidai daga cikin akwatin. Tsarin ya haɗa da sanya wani Layer na zinc wuta akan maɗaurin karfe. Makullin ma'auni da kowa ke jefawa shine kauri mai rufi, galibi yana nufin kusan 5-8 microns don daidaitattun kusoshi na electro-galvanized. Wannan Layer yana ba da kariya ga shinge. Ta jiki tana kare karfe daga danshi da iska.

Amma ga hiccup na farko mai amfani: wannan Layer ɗin sirara ce. Kuma ba a haɗa shi da ƙarfe ba kamar a cikin zafi-tsoma. Na ga batches inda rufin bai yi daidai ba, musamman a cikin zaren da kuma ƙarƙashin kai - wuraren da damuwa ke maida hankali. Mai sayarwa na iya yin da'awar yarda da ASTM B633, a ce, SC Type 2, amma ba tare da daidaiton tsarin sarrafawa ba, kuna samun rauni. Kamfanin kamar Hannun Zetai Mretering co., Ltd., wanda ke zaune a babban cibiyar samar da fastener na kasar Sin a Yongnian, Hebei, zai sami damar yin manyan gudu, amma mai saye yana kan mai siye don tabbatar da daidaiton ingancin kayan aikin waje, ba wai kawai ɗauka ba.

Don haka, don zubar da lambun a cikin yanayin bushewa? Kila lafiya shekaru. Don layin dogo na baranda na bakin teku, kayan haɗi na gada a yankin damina, ko kowane tsari tare da busassun hawan keke akai-akai? Wannan shingen bakin ciki, mai yuwuwar ajizanci ya zama mahaɗi mafi rauni. Da'awar dorewa tana farawa lokacin da samfurin ke buƙatar maye gurbin cikin shekaru 5.

Hanyoyin Lantarki: Ba Tsatsa Ne Kawai ba

Mutane suna tunanin tsatsa iri ɗaya a waje da hoto. Gaskiyar ta fi gunki da mugu. Manyan kisa guda biyu don na'urorin lantarki-galvanized a waje sune farin tsatsa da lalata galvanic.

Farar tsatsa ita ce ajiyar farin foda da kuke gani akan zinc. Yana faruwa a lokacin da rufin tutiya yake jika akai-akai kuma ba zai iya samar da barga mai kariya ba (zinc carbonate). A cikin wuraren da aka keɓe na waje inda ruwa ke zama-kamar tsakanin filaye masu ɗaure ko a cikin ramukan da ba a zubewa ba — zinc yana lalata hadaya da sauri. Na rabu da haɗin gwiwa bayan yanayi biyu don gano zinc mafi yawa ya canza zuwa farin foda, yana barin karfe ya kusan baci.

Lalacewar Galvanic shine mai kisan kai shiru. Haɗa kullin ƙarfe na electro-galvanized tare da ƙirar aluminum, ko mafi muni, jan ƙarfe ko bakin karfe, a gaban electrolyte (ruwa ya isa), kuma kuna ƙirƙirar baturi. Zinc, kasancewar ya fi anodic, yana lalata da sauri don kare sauran ƙarfe. Na tuna wani aikin da ake amfani da shi Katayen lantarki-Galvanized don amintaccen datsa mai walƙiya tagulla. Takaddun bayanai sun yi gaggawa. A cikin watanni 18, an yi hasarar kawunan ƙullun, wanda ya lalata gyaran. Gyaran ya kasance cikakke, tsada mai tsada tare da bakin karfe mai rufi. An shafe farkon ajiyar kuɗi.

Rufe Mutunci da Matsalar Zare

Wani takamaiman wurin zafi shine zaren. Tsarin electroplating na iya barin gaggautsa, babban rufin gini a kan ƙwanƙolin zaren. A lokacin shigarwa, wannan suturar na iya guntu ko kashewa. Yanzu kuna da tashin hankali tare da kariyar lalata sifili. Mun fara ƙayyadaddun suturar juzu'i na chromate (rawaya iridite ko bayyanannun shuɗi) akan kusoshi na electro-galvanized don ƙarin kariya, amma har ma wannan shine kawai layin wucewa akan zinc, ba gyara don lalacewar injina ba. Juyar da ƙugiya na iya goge shi a jikin goro ko ramin da aka taɓa.

Harka a cikin Ma'ana: Aikin shinge mai Rahusa

Kyakkyawan misali daga ƴan shekarun baya. Wani wurin shakatawa na birni yana so ya kafa shingen ƙarfe na ɗaruruwan mita na tubular. Kasafin kudi ya yi tsauri. Ƙididdigar ta yi kira ga galvanized bolts. Dan kwangilar, wanda ke neman mafi ƙanƙanci, ya samo ƙwanƙolin lantarki-galvanized arha, mai yuwuwa daga mai samar da yawa. Sun yi haske akan shigarwa.

Saurin ci gaba shekaru uku, a cikin yanki mai matsakaicin yanayin masana'antu da fesa gishirin hanya a cikin hunturu. Firam ɗin shingen suna da kyau (zafi-tsoma galvanized), amma kowane ƙwanƙwasa kai da na goro sun kasance damun jajayen tsatsa da farin ɓawon burodi. Lalacewar ta yi muni sosai har an kama wasu goro, suna buƙatar injin niƙa don cirewa yayin sake fasalin. Bangaren ɗorewa ya kasance sifili - ɗimbin ɓarna na aiki da kayan don gyara da wuri. Idan da ƙayyadadden ƙayyadaddun da aka yi kira ga masu ɗaukar zafi-tsoma galvanized (HDG) don dacewa da masana'anta na shinge, ko ma mafi kyau, galvanizing na inji don daidaitaccen suturar zaren, zagayowar rayuwa ta sauƙaƙa ninki biyu ko ninki uku.

Wannan shine inda tushen bayanai ke da mahimmanci. Wurin masana'anta, kamar Zitai Fastener yana kusa da manyan hanyoyin sufuri (Layin jirgin kasa na Beijing-Guangzhou, babbar hanyar), yana magana da ingancin kayan aiki, ba dacewa da samfur ba. Kuna buƙatar tono cikin ƙayyadaddun tsarin sarrafa su don samar da wutar lantarki na waje, idan har ma suna bayar da shi azaman layin samfuri.

Yaushe Electro-Galvanized Zai Yi Aiki A Waje?

Ba dukan halaka ba ne. Akwai niches. Kiran hukunci ya sauko zuwa ga tsananin muhalli da samun damar kiyayewa.

Don aikace-aikacen ciki ko cikakken tsari na waje (kamar a cikin tsarin rufin rufin da aka kiyaye shi daga yanayin kai tsaye), electro-galvanized ya isa daidai. Juriyar lalatarsa ​​ya wadatar da yanayin zafi kaɗai.

Wani labari kuma shine na tsarin waje na wucin gadi wanda aka yi niyya don tarwatsawa da sake amfani da shi cikin kankanin lokaci, a ce shekaru 1-3. Ƙarshen santsi yana sa kulawa cikin sauƙi. Har ila yau, idan za a yi fenti daga baya ko foda mai rufi a matsayin wani ɓangare na taron, ƙirar electro-galvanized Layer yana samar da maɓalli mai kyau, mai tsabta don tsarin fenti kuma yana ƙara ƙarin kariya. Amma tsarin fenti dole ne ya kasance cikakke kuma a yi amfani da shi yadda ya kamata-scratches yayin shigarwa ko sabis zai haifar da maki mai mahimmanci don lalata.

Hukuncin: Dorewa aiki ne na Zagayowar Rayuwa

Don haka, koma ga ainihin tambayar. Shin kusoshi masu amfani da wutar lantarki suna dawwama don amfanin waje? Abin da na dauka, daga yin kokawa da wannan zabi akai-akai, shine: za su iya zama, amma a ƙarƙashin ƙaƙƙarfan yanayin yanayi waɗanda galibi ba a cika su cikin ƙayyadaddun ƙayyadaddun waje ba.

Dorewa na gaskiya yana nufin zabar kayan da ya dace don rayuwar sabis da muhallin da ake tsammani don gujewa gazawar da wuri da musanyawa. Don mafi yawan aikace-aikacen waje masu buƙatu - bakin teku, babban zafi, masana'antu, ƙayyadaddun ƙarancin gishiri, ko sifofi na dindindin-madaidaitan madaidaitan igiyoyin lantarki-galvanized babban zaɓi ne mai haɗari. Zaɓuɓɓuka masu ɗorewa sune galvanized mai zafi-tsoma, galvanized na inji, ko bakin karfe (kamar 304 ko 316, dangane da bayyanar chloride). Mafi girman farashin su na gaba yana ragewa na tsawon lokaci mai tsawo, rayuwar sabis mara kulawa.

Tunani na ƙarshe: koyaushe ƙayyade tare da daidaito. Kada a rubuta galvanized kawai. Ƙayyade tsarin (misali, ASTM A153 don tsomawa mai zafi), kauri mai rufi, da kowane ƙarin jiyya. Kuma don haɗin gwiwa mai mahimmanci, yi la'akari da duba kan rukunin yanar gizo na rukunin farko na fasteners. Gwajin fesa gishiri mai sauri a kowane ASTM B117, koda kuwa duban sa'o'i 96 ne kawai, na iya bayyana abubuwa da yawa game da ingancin mai siyarwa tare da da'awar kasida. Yana ceton duniyar ciwon kai daga baya, yana mai da da'awar dorewar ka'idar ta zama gaskiya mai amfani, kan-kasa.