EN 10219 S355JRH LSAW Bututun Karfe: Ƙarfin Kerawa & Bayanin Samfura

Me yasa ake amfani da bututun gini na EN 10219 don ƙarfe?

● CE mai alamar (EN 10219) tare da Bayyana Aiki

● Girman diamita har zuwa 2,500mm (98″) – ya dace da gine-gine masu ban mamaki

● Katanga mai nauyi har zuwa 80mm - don ginshiƙai masu nauyi da baka na gadoji

● Zaɓin niƙa walda don ƙarfe mai faɗi na gine-gine

● Ana samun rufin firji da galvanizing mai zafi

● An karɓi dubawa na ɓangare na uku (SGS, BV, TÜV) don tabbatar da CE

l Sama da tan 300,000 da aka bayar ga ayyukan Turai da na ƙasashen duniya

Tambayoyin da Ake Yawan Yi:

T: Menene bambanci tsakanin EN 10219 S355JRH da EN 10210 S355JRH?
A: EN 10219 yana nufin sassan da aka yi da welded masu sanyi (walda da samar da su ana yin su ne a zafin ɗaki). EN 10210 yana nufin sassan da aka gama da hot hot (ba su da sumul ko walda sannan a yi musu magani da zafi). Ga bututun LSAW, EN 10219 shine ma'aunin da ya dace. Sassan EN 10210 masu zafi galibi ba su da sumul ko ERW. Dukansu suna da irin wannan halayen injiniya.

T: Za ku iya samar da S355J2H (tasirin -20°C) maimakon S355JRH?
A: Eh. Ana samun S355J2H idan an buƙata don aikace-aikacen ƙananan zafin jiki kamar tsarin teku ko na arctic. Haɗin sinadarai iri ɗaya ne amma tare da iyaka mai tsauri da garantin tasirin Charpy a -20°C (minti 27J). Ƙarin farashi yana aiki.

T: Shin kuna ba da alamar CE ga bututun EN 10219?
A: Eh. Womic Steel tana da takardar shaidar Kula da Samar da Masana'antu (FPC) bisa ga EN 10219. Muna ba da alamar CE tare da Sanarwar Aiki (DoP) ga bututun da aka sayar a Yankin Tattalin Arzikin Turai (EEA). Wannan yana tabbatar da sassaucin izinin kwastam da kuma karɓar aikin.

T: Menene matsakaicin tsawon galvanizing mai zafi?
A: Abokin aikinmu na galvanizing yana da tsawon wanka na mita 13.5. Saboda haka, ana iya nutsar da bututun har zuwa mita 12.5 gaba ɗaya kuma a haɗa su da galvanized. Don bututun da suka fi tsayi, za mu iya shirya galvanizing na sashe ko kuma mu shafa wani shafi daban (poxy mai arzikin zinc). Da fatan za a tuntuɓe mu don takamaiman buƙatun tsayi.

T: Za ku iya niƙa walda don ƙarfe mai faɗi?
A: Eh. Ga bututun gini da ake iya gani (misali, ginshiƙai a tashoshin filin jirgin sama, baka na gadoji), za mu iya niƙa murfin walda na SAW don ya kasance a cikin jikin bututun. Wannan ƙarin aiki ne kuma yana ƙara farashi da lokacin jagora (kimanin +15%). Muna ba da shawarar a ƙayyade wannan buƙata a lokacin yin oda.

T: Wane shafi ne aka ba da shawarar amfani da shi don ƙarfe na waje?
A: Don fallasa waje, rufin primer (poxy mai arzikin zinc, microns 60-80) shine mizani na kariya ta wucin gadi yayin gini. Don kariya ta dindindin ba tare da fenti ba, yin amfani da galvanizing mai zafi (microns 85-100) ya fi kyau ga muhalli masu tsauri. Don aikace-aikacen ciki, saman mai ko ƙaramin primer ya isa.

T: Menene lokacin jagora na yau da kullun don bututun tsarin S355JRH LSAW?
A: Lokacin da aka saba amfani da shi: kwanaki 30-45 ga girman JCOE/UOE. Ga farantin da aka naɗe mai kauri (> 50mm): kwanaki 45-60. Don gamawa da walda da ƙasa: ƙara makonni 2. Don yin galvanization mai zafi: ƙara makonni 1-2 ya danganta da jadawalin wanka.

Nassoshi kan Aikin - Tsarin Rufin Filin Wasan Al Wakrah (Qatar)

Ƙasa:Qatar (Al Wakrah, kudancin Doha)
Daidaitacce & Matsayi:TS EN 10219 S355JRH (tare da ƙarin tasirin Charpy a 0°C da niƙa walda don ƙarfe da aka fallasa)
Girma da Adadi:

● OD 508mm (20″) × WT 16.0mm – mita 4,500 (kimanin tan 830) wanda aka ƙera ta hanyar tsarin UOE

● OD 610mm (24″) × WT 20.0mm – mita 3,200 (kimanin tan 930) wanda aka ƙera ta hanyar tsarin UOE

● OD 813mm (32″) × WT 25.0mm – mita 1,800 (kimanin tan 880) wanda aka ƙera ta hanyar JCOE

● OD 1,016mm (40″) × WT 30.0mm – mita 1,200 (kimanin tan 840) wanda aka ƙera ta hanyar dinkin farantin da aka naɗe shi ɗaya
Jimilla:Mita 10,700 (kilomita 10.7) na bututun gini, kimanin tan 3,480

Bayani dalla-dalla:Ƙarshen fili tare da chamfer (don walda gindin), murfin walda da aka yi da ƙasa zuwa ga jikin bututu (buƙatar gine-gine da aka fallasa), murfin primer (ƙarfe mai arzikin zinc, microns 60). Gwajin lanƙwasa mai mahimmanci, gwajin lanƙwasa jagora, 100% UT na dinkin walda da 10% RT. Tasirin wuta a 0°C (minti 27J, an cimma 80-120J). Alamar CE tare da Bayyana Aiki. Dubawa ta ɓangare na uku ta TÜV Rheinland. Duk bututun suna buƙatar madaidaiciya ≤ 0.15% (mafi tsauri fiye da daidaitaccen 0.2%).

Aikace-aikace:Filin wasa na Al Wakrah (wanda kuma aka sani da filin wasa na Al Janoub), ɗaya daga cikin wuraren gasar cin kofin duniya ta FIFA ta 2022. Tsarin rufin ya ƙunshi ragar kebul mai ƙarfi tare da zoben matse ƙarfe da kuma trusses na radial. An yi amfani da bututun LSAW don babban zoben matsewa (1,016mm OD) da kuma radial truss chords (813mm, 610mm, 508mm). Rufin ya kai diamita kusan mita 200 kuma ya mamaye kujeru 42,000.

Kalubalen Fasaha da Magani:

● Bukatar niƙa ƙarfe mai fallasa - walda– Tsarin rufin filin wasa yana bayyane daga ciki da waje. Abokin ciniki yana buƙatar murfi na walda don a niƙa shi a ƙasa zuwa ga bututun don ya yi laushi. Womic ta yi niƙa walda ta amfani da injin niƙa mai sarrafa kansa sannan a gama da hannu. An duba kowace walda don ganin santsi (rashin kyawun saman Ra ≤ 6.3μm). Wannan ya ƙara makonni 2 ga samarwa amma ya cimma kammalawar da ake buƙata.

● Bukatar daidaito mai girma– Zoben matsewa yana buƙatar bututu masu madaidaiciya ≤ 0.15% (misali EN 10219 yana ba da damar 0.2%). Womic ta yi amfani da hanyoyin UOE da JCOE tare da faɗaɗa injina don cimma madaidaiciyar 0.08-0.12%. An auna kowane bututu a kan teburin madaidaiciya (daidaitawa ta laser). An miƙe bututun da ba su da haƙuri ta amfani da injin matse ruwa.

● Rufin allo don yanayin hamada– Qatar tana da zafin jiki mai yawa (har zuwa 50°C), zafi mai yawa (har zuwa 85% a lokacin hunturu), da kuma yashi mai iska. An shafa sinadarin epoxy mai arzikin zinc (microns 60) a kan dukkan bututu. An yi amfani da fenti mai kauri wanda ya wuce gwajin feshin gishiri (awanni 1,000, ASTM B117) tare da ƙasa da 2mm creep. Gano lokacin hutu a 2kV. An auna mannewa a 8 MPa (min 5 MPa).

● Tsarin aiki mai sarkakiya a lokacin aikin gina FIFA– Gina filin wasa yana da tsari mai tsauri (2020-2021). Womic ta isar da bututun jigilar kaya guda 4 (kowanne tan 800-1,000) tsawon watanni 8. An jigilar bututun daga Shanghai zuwa tashar jiragen ruwa ta Hamad (Doha), sannan aka kai manyan motoci kilomita 45 zuwa wurin filin wasan. Saboda takunkumin COVID-19, masu duba Womic ba su iya tafiya ba. Mun shirya duba shaidu daga nesa ta hanyar bidiyo kai tsaye (TÜV akan layi). An karɓi dukkan tan 3,480 daga nesa.

● Taurin tasirin zai iya haifar da ƙarancin zafin jiki– Duk da cewa Qatar tana da zafi, dare a lokacin hunturu na iya sauka zuwa 10°C, kuma rufin yana fallasa. EN 10219 S355JRH yana buƙatar tasirin Charpy a 0°C (minti 27J). Womic ta cimma 80-120J, fiye da yadda ake buƙata. An haɗa rahotannin gwaji a cikin kunshin CE DoP.

●Sakamako:An buɗe filin wasa na Al Wakrah a shekarar 2022 kuma ya ɗauki nauyin wasannin gasar cin kofin duniya guda shida. An yaba wa tsarin rufin ƙarfe saboda kyawun ƙirarsa. Ɗan kwangilar (wanda ya fi kowa a Turai) ya ba da rahoton babu wata matsala a walda yayin da ake ɗaga shi. Duk bututun LSAW sun dace da wurin ba tare da wani gyara ba. Womic Steel ta sami wasiƙar godiya daga babban mai kwangilar saboda "ingantaccen daidaito da kammala walda." Filin wasan yana ci gaba da aiki a matsayin wurin wasanni da tarurruka da yawa.

Tuntuɓi:
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Womic Steel – Abokin hulɗarka mai aminci ga bututun ƙarfe na EN 10219 S355JRH LSAW don gina firam, baka na gadoji, rufin filin wasa, da aikace-aikacen gini masu nauyi a duk duniya.