Lafun Fasaha na Galvanize mai Tsawon Dukkali

Me ya sa Galvanized Steel Board na farko a cikin karama ta zama mai kyau don amfanin karama mai yawa

Farko na Kyau: Kuma Taimakawa ga Zafin, Karamar Karama, da Tsayin Karama na Dari

Laminar na fasaha mai tsanani da ke cikin kishin da suka daga galvanizing suna ba da kyau a matsayin gudunmawa ga corrosion saboda zinc coating na hot dip wanda ke haɗa da yadda mafi kyau da surface na fasaha. Wannan haɗa yana taimaka wajen karewa ga rust, yanzu a lokacin da aka yi amfani da su a cikin ƙwayoyin da suka daga industriya ko a cikin kofin da suka daga kofin rabi wanda ya zama mai tsoro ga wasu abubuwa saboda salt air. A lokacin da aka yi amfani da su wajen kawo abubuwa mai sarrafa, laminar suna kawo shi da mafi kyau don amfani da su a cikin crane rail wanda ke bukata kawo abubuwa ta 20 tons ko fiye. Fasaha na wannan jinsi na kuma cikin nisa da tensile strength ta hanyar 550 MPa a cikin wasu jinsi kamar S550GD+Z, wanda ke sauya su don amfani a cikin wasu kishin da ke bukata kawo fahimta kuma ba za su gudan ba, kamar kishin da suka daga earthquake resistant building frameworks. Amfani da su a cikin al'ada yana nuna cewa laminar na wannan jinsi suna ci gaba da 50 zuwa 75 shekara a cikin kasa ta kudin kasa, amma yana zama 20 zuwa 50 shekara a cikin kofin da suka daga fabrikai ko kofin da suka daga kimiyya. Amma, a matsayin fasaha mai tsanani ba ta kuma kishin wanda ba ta kuma kishin kuma, fasaha mai tsanani ta kare karamin bayani ta 40% a cikin kowace shekara ta hanyar amfani da su, kamar yadda an sani a cikin wasu kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga kishin da suka daga......

Takardun Farkon Kullumai: ASTM A653 (SS340, G90) vs. EN 10346 (S550GD+Z)

ASTM A653 SS340 karfe tare da G90 zinc shafi yana mai da hankali kan kyakkyawan tsari da matakan ƙarfi mai kyau a kusa da ƙarfin ƙarfin 340 MPa. Wannan ya sa ya dace musamman don aikin ƙera inda ake buƙatar lanƙwasawa da siffar, kamar gina tsarin jigilar kayayyaki. A gefe guda kuma, an tsara S550GD+Z na EN 10346 musamman don aikace-aikacen aiki mai nauyi. Tare da ƙaramar ƙarfin ƙarfin 550 MPa, wannan nau'in yana ɗaukar nauyi mai yawa fiye da yawancin madadin. Mun ga ana amfani da shi sosai a cikin yanayi mai wuya kamar gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine-ginen gine Gwaje-gwaje da aka yi da kansu sun nuna cewa S550GD+Z zai iya jimre wa ƙarin kaya da kashi 30 cikin ɗari kafin ya nuna alamun lalacewa. Duk da yake abun cikin ƙaramin ƙarfe yana nufin masu walda suna buƙatar bin hanyoyin musamman, masana'antun da ke amfani da kowane mizani na iya tabbata cewa murfin zinc ɗin su zai tsaya sama da 5,200 psi bisa ga ƙa'idodin gwajin ASTM D3359. Wannan yana tabbatar da cewa duk wani tsarin da waɗannan kayan ke bayarwa yana daidaitawa da juriya ta lalata mai ƙarfi a tsawon lokaci.

Bayanin Amfani :

• Takardun zamanin gudun da kuma bayanan kusurwar hankali (2023)
• Kuskuren maimakon daga bayanan tashin mill mai amfani da shari'a

Aiki na kusurwar hankali ya zama tsakanin kuskuren da kuskuren farko: Kuskuren da kuskuren farko suna aiki da yawa

Kuskuren mai sautin gaba (ASTM A653 G90): Kamarin, kuskuren da kuskuren farko, da zamanin aiki na yanzu a cikin kofin da kofin

A cikin ASTM A653 G90 standard, yana daidai 0.90 oz kuma wani yarda na 275 grams kuma per square meter na zinc coating da aka fiye. Wannan zai haɗa da wata tsari mai kyau wanda ta yi amfani don kula da moisture da chemicals su ka shiga. Bayani na field tests a highway bridges sun nuna cewa wannan coating zai iya ci gaba da kara 75 years a yanki da conditions na sarrafa. Kuma tare da karamin shekara da temperature changes da physical stresses, ba su da yawa in kawo kura. Kuma wadanda adhesive properties suna da kyau kuma, suka ci gaba da kara 3,600 pounds per square inch wanda ke nuna cewa coating ya zama mai tsari kafin yadda aka yi impacts a wani lokaci da yawa a cikin yanki kamar platforms da railway systems. Bayani na NACE International sun sanya wannan daidai cewa structures da aka galvanize suna bukatar karamin maintenance na kadan kamar waɗanda aka paint su, kuma a lokacin shekara 30, wannan zai iya bauta karamin bayani a kowane lifetime na structure.

Tasirin Zabi na Uwar Jiki: Fulani na Karbon-Manganisi da Fulani na Microalloyed (Nb/V/Ti) don Samun Galvanizing da Karamin Yadda Ya Yi Amfani da Shari da Karamin Yadda Ya Yi Amfani da Shari

Kimiya na uwar jiki ta bayyana tsakanin kwalitas na galvanizing da karamin yadda ya yi amfani da shari:

Yan kuma a cikin yadda ma'alin suka taimaka wani karami na niobium ko vanadium ga shau, suka samu abu mai kyau a lokacin da aka gudanen shau. Neman ya zama mai ƙarfi ta hanyar karamin gaba daya kuma wadannan shau na microalloyed zasu iya samun ƙarfin gaba daya ta hanyar 550 MPa ko karin. Kuma kuma ayyukan da zinc da iron suka kawo a matsayin alloy suna dacewa. Abin da suka sa wadannan materials suka faru ne ayyukan da suka taimaka wajen tsarin kimiya su. Wannan yana nufin cire waɗannan alamun da suka fuskanta (brittle phases) daga bayan su a matsayin metals da suka iya rufe coating akan yadda suka dacewa da karamin yawa a lokacin da suka taimaka da karamin yawa. A cikin wani hali, shau na carbon-manganese da suka taimaka da karamin silicon suna taimaka sosai. Wannan yana nufin samun karamin alloy da suka taimaka da karamin yawa da suka iya fuskanta a lokacin da suka taimaka da karamin yawa. Wannan shine saboda ingini da suka taimaka a bugguwa da suka taimaka da karamin yawa ko a gudanen jirgin da suka bukatar ƙarfi da kuma karewa daga rust suna taimaka da karamin yawa a cikin shau na microalloyed da suka taimaka a matsayin galvanized boards. Wadannan materials suna aiki sosai a wani irin wani lokaci da suka bukatar.

Kwamfutin Na'urorin Ayyukan Kamar Yadda Ya Zama Mafi Kyau Don Gaba Da Kudin Kamar Yadda Ya Zama Mafi Kyau Don Gaba Da Kudin

Kwamfutin Kwamfutin Da Kwamfutin Na'urorin: SS340 vs. S550GD+Z a Tsarin Kura da Tsarin Kura

Yaduwa a matsayin tsari na kima, mu yace mu duba waɗannan adadin da suka zama mabudin da za a iya dubawa. ASTM SS340 ya ba da 340 MPa na tsari na kima wanda ya yi amfani da ita don gabaɗaya na kima, amma EN S550GD+Z ya fi yadda ta fuskata da 550 MPa. Wannan ya sa farin ciki daga cikin abubuwan da suka yawa kamar tashin kuran, inda karamar yana samu 50 kN ga santimita kwadrat kuma kadara yana samu kafin wannan. Farko na tsari ya nufi cewa masu ingantaccen za su iya rarraba kwayoyin kima ta hanyar 25% kuma suna kare abubuwan da suka yawa a cikin karamar. Mu sani wannan a matsayin hali. A cikin wasu alamar da suka haifar da karamar, alamar sun nuna cewa S550GD+Z ya kusanta 18% ƙasa da SS340 idan suka dawo suka dawo da karamar da suka yawa. Wannan farko na amfani ne wanda ke sa masa masu ingantaccen su yi amfani da ita a cikin abubuwan da ba za a iya karya su.

Karamar Kusanta da Karamar Daga Cikin Karamar: Alamar daga Karamar na Gida da Karamar na Mezzanine

Yihaƙiƙin abu na kwayoyin kwayo da za a iya shiga cikin kwayoyin kwayo kafin ya kashe, wanda ake kira ta "ductility" kuma a matsayin yadda ya ƙare kwayoyin kwayo (elongation rates), tana taimaka wajen fahimtar yadda kwayoyin kwayo zai iya gaskiya ga alama na kuzari (fatigue) idan ya daga cikin alama na kuzari (repeated stress cycles). Kwayoyin kwayo na gida (structural steel) SS340 na amfani da yawa yana nuna kamar 20 zuwa 23% na kuzari, wanda ke cikin kyau don gida da sauran abubuwan da suka daga cikin kwayoyin kwayo na gida. Amma idan mu fara duba abubuwan da suka daga cikin kwayoyin kwayo don kwayoyin kwayo da suka daga cikin kuzari (vibrating areas), S550GD+Z yana ba da abu baya. Wannan kwayon kwayo yana nuna kamar 12 zuwa 15% na kuzari amma yana ba da abubuwan da suka daga cikin kuzari (toughness characteristics) da suka daga cikin kyau. Duba a duniya mai haɗa (Real world testing) yana nuna abubuwan da suka daga cikin kyau kuma. A cikin kwayoyin kwayo na sayar da otun (automotive manufacturing plants) inda kwayoyin kwayo na mezzanine suna kuzari kamar ƙalma (thousands) na kuzari na forklift kafin rana, kwayoyin kwayo da suka daga cikin S550GD+Z suna daga cikin kuzari (crack free) don biyu uku (five) sallan. Wannan yadda ke cikin kyau yana kuzari (triples) abubuwan da muna ganin da suka daga cikin kwayoyin kwayo na gida (traditional steel options). Yadda wannan yake yanzu? Sirin yana cikin kwayoyin kwayo na gida (microalloy additions) da suka daga cikin kuzari (special) wanda suka taimaka wajen kuzari (spreading out) alama na kuzari (stress) a cikin kwayoyin kwayo daga cikin kuzari (entire material surface) ba tare da ina kuzari (letting it concentrate) a cikin kwayoyin kwayo da suka daga cikin kuzari (weak spots), wanda ne kuma yana kuzari (causes failures) a cikin kwayoyin kwayo na gida (regular carbon manganese steels) a lokacin da suka daga cikin kuzari (over time).

Tambayoyi Masu Yawan Faruwa

Wani abu ne ya sa galvanized steel boards su zama masu kula da corrosion?

Zinc coating na hot dip a cikin galvanized steel boards ta saba da bond mai kyau da surface na metal, ta ba da protection don rust, yanzu a wani environment mai corrosion kamar industrial sites ko coastal areas.

Kamar yaya galvanized steel boards zasu iya ci gaba a wani environment na farko?

Galvanized steel boards suna iya ci gaba daga 50 zuwa 75 years a rural areas, kuma 20 zuwa 50 years a wani area na industrial sites. Lifespan na su yana tattara wajen regular steel boards ba su da protective coatings.

Wani farko ne a tsarin ASTM A653 SS340 da EN 10346 S550GD+Z?

ASTM A653 SS340 ta yi amfani da good formability da yield strength na 340 MPa, wanda ke maimakon fabrication. EN 10346 S550GD+Z ta yi amfani da heavy-duty applications da yankin yield strength na 550 MPa, wanda ke maimakon handling na intense loads.

Yanzu kamar yaya microalloying ta taimaka ga performance na galvanized steel?

Kullum mai yin karama ta hanyar ƙarfi na niobium da vanadium ya zama mai saukarwa, ya ci gaba daya daga cikin karama ta hanyar ƙarfi na zinc-iron, ya tsara karama ta hanyar ƙarfi, kuma ya bincika samun karama ta hanyar ƙarfi.