ASTM A500 Grade C LSAW Steel Bututu: Ƙarfin Masana'antu & Bayanin Samfura

Me yasa Womic Steel don ASTM A500 Grade C?

● Babban diamita har zuwa 2,500mm (98″) – ya dace da ginshiƙai masu nauyi da kuma sandunan watsawa

● Katanga mai nauyi har zuwa 80mm - ga ma'aikatan gini masu nauyi

● 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)

● Farashi mai kyau don manyan ayyukan samar da ababen more rayuwa

Tambayoyin da Ake Yawan Yi:

T: Menene bambanci tsakanin ASTM A500 Grade C da ASTM A53 GR.B don bututun tsari?
A: Daraja ta C tana da ƙarfi mafi girma: 345 MPa yawan amfanin ƙasa idan aka kwatanta da 240 MPa don A53. Daraja ta C kuma tana da juriya mai ƙarfi kuma tana buƙatar gwajin lanƙwasa. Ga ginshiƙai masu ɗauke da kaya da trusses, ana fifita Daraja ta C. A53 GR.B ya dace da mambobi na biyu da kuma tsarin da ba shi da mahimmanci.

T: Shin ASTM A500 yana buƙatar gwajin tasiri (Charpy)?
A: A'a. ASTM A500 ba ta buƙatar gwajin tasirin Charpy ba. Duk da haka, don aikace-aikacen ƙananan zafin jiki (misali, Arctic, wasu lambobin gada), injiniyoyi na iya ƙara ƙarin buƙatu. Womic na iya samar da gwajin tasirin Charpy akan ƙarin farashi (yawanci a 0°C ko -20°C) idan an ƙayyade.

T: Za ku iya samar da A500 Grade C tare da galvanizing mai zafi don amfani a waje?
A: Eh. Muna bayar da galvanizing mai zafi kamar yadda ASTM A123 ya nuna. Tsawon lokacin da za a yi amfani da shi wajen wanke baho shine mita 12.5. Ga bututu masu tsayi, za mu iya shirya galvanizing na sashe ko kuma mu shafa wani shafi daban (epoxy mai wadataccen zinc). Da fatan za a ƙayyade buƙatun tsawon lokacin da za a yi amfani da shi.

T: Menene matsakaicin tsawon da za ku iya samarwa don bututun A500 Grade C LSAW?
A: Matsakaicin tsayin da aka saba dashi shine 18m (JCOE) ko 24m (UOE) don diamita ≤ 1,220mm. Ga manyan diamita (faranti mai birgima), matsakaicin tsayi yawanci shine 12-18m saboda ƙarancin girman faranti. Ga tsayin da ya wuce mita 18, zamu iya walda sassa da yawa daga ƙarshe zuwa ƙarshe (walda mai zagaye SAW). Tuntuɓe mu da takamaiman buƙatunku.

T: Shin kuna ba da duba bututun A500 Grade C na ɓangare na uku?
A: Eh. Muna aiki tare da SGS, BV, TÜV, da sauran hukumomi. Dubawa na iya haɗawa da gani da girma, gwajin daidaitawa, UT ko RT na walda, da gwajin sinadarai/tashin hankali. Muna bayar da takaddun shaida na EN 10204 Type 3.1 a matsayin mizani; Nau'in 3.2 yana samuwa idan an buƙata.

T: Menene lokacin jagora na yau da kullun don bututun tsarin A500 Grade C LSAW?
A: Lokacin jagora na yau da kullun: kwanaki 30-45 don girman JCOE/UOE. Don farantin da aka birgima mai kauri bango (> 50mm): kwanaki 45-60. Don galvanizing mai zafi: ƙara makonni 1-2. Don niƙa walda (ƙarshen gini): ƙara makonni 2.

Nassoshi kan Aikin - Tsarin Hasumiyar Watsa Labarai ta Filin Wasannin Los Angeles (Amurka)

Ƙasa:Amurka (Inglewood, California – yankin filin wasa na SoFi)
Daidaitacce & Matsayi:ASTM A500 Grade C (tare da ƙarin tasirin Charpy a 0°C)
Girma da Adadi:

OD 610mm (24″) × WT 16.0mm – mita 2,400 (kimanin tan 560) wanda aka ƙera ta hanyar tsarin UOE

OD 813mm (32″) × WT 20.0mm – mita 1,800 (kimanin tan 700) wanda aka ƙera ta hanyar JCOE

OD 1,016mm (40″) × WT 25.0mm – mita 900 (kimanin tan 550) wanda aka ƙera ta hanyar dinkin farantin da aka naɗe shi ɗaya

OD 1,220mm (48″) × WT 30.0mm – mita 600 (kimanin tan 530) wanda aka ƙera ta hanyar dinkin farantin da aka naɗe shi ɗaya
Jimilla:Mita 5,700 (kilomita 5.7), kimanin tan 2,340

Bayani dalla-dalla:Ƙarshen fili tare da chamfer (don walda butt), murfin walda (buƙatar tsarin da aka fallasa), murfin epoxy mai wadataccen zinc (microns 60). Gwajin lanƙwasa dole (babu tsagewa a faɗin faɗin diamita 1/3). Gwajin lanƙwasa jagora don daidaita walda. 100% UT na dinkin walda. Tasirin zafi a 0°C (minti 27J, an cimma 60-90J). Daidaito ≤ 0.15% (ya fi tsauri fiye da daidaitaccen A500). Dubawa na ɓangare na uku ta SGS USA.

Aikace-aikace:Gine-ginen hasumiyoyin watsawa na ado da aiki da ke kewaye da filin wasa na SoFi da kuma ginin Hollywood Park a Los Angeles. Bututun LSAW suna aiki a matsayin manyan ginshiƙai a tsaye da kuma ƙarfafa kusurwa don manyan hasumiyoyin watsawa na gine-gine masu "manyan" (kimanin tsayin mita 60) waɗanda ke tallafawa alamun, haske, da kuma zama alamun gine-gine. Aikin ya buƙaci ƙarfe da aka fallasa tare da ƙarewar walda mai santsi da kuma kamanni iri ɗaya.

Kalubalen Fasaha da Magani:

● ƙarfe mai fallasa na gine-gine - niƙa da gama walda– Ana iya ganin hasumiyoyin daga filin wasa da kewaye. Womic ta yi niƙa ta atomatik ta hanyar walda sannan ta kammala da hannu don samun santsi (Ra ≤ 6.3μm). Mun kuma shafa wani shafi mai kama da na primer (mai ɗauke da sinadarin zinc mai yawa, launin toka mai haske wanda mai zane ya ƙayyade). An duba kowace bututu don ganin santsi na walda ta hanyar ƙungiyar QA ta abokin ciniki.

● Bukatun yankin girgizar ƙasa - sassauci da tauri– Los Angeles tana cikin Tsarin Girgizar Ƙasa na Rukuni na D (babban haɗarin girgizar ƙasa). ASTM A500 Grade C yawanci ba ya buƙatar gwajin tasiri. Injiniyan gine-gine ya ƙara buƙatar tasirin Charpy na 27J a 0°C. Faranti da aka zaɓa na womic tare da carbon mai sarrafawa (0.20-0.22%) da manganese (1.15-1.25%) kuma sun cimma 60-90J a 0°C, fiye da buƙata.

●Manyan sassan diamita masu taurare– Wasu ƙafafun hasumiya an yi musu kaifi (kamar siffar mazugi). Womic ta samar da bututun da suka miƙe waɗanda ɗan kwangilar ya ƙera su zuwa sassan da suka yi kaifi. Mun samar da tsarin sarrafa ovality mai ƙarfi (≤ 0.5%) don sauƙaƙe tsarin lanƙwasa. An yi wa bututun alama da layukan daidaitawa don tabbatar da daidaiton walda.

●Rufin allo don yanayin bakin teku– Filin wasa na SoFi yana da nisan kilomita 5 daga Tekun Pacific, tare da feshin gishiri. An shafa sinadarin epoxy mai arzikin zinc (microns 60) a dukkan bututu. An shafe tsawon sa'o'i 1,000 ana gwajin feshin gishiri (ASTM B117) tare da kasa da 2mm na rarrafe daga scribe. Gano lokacin hutu a 2kV ba tare da wata matsala ba.

●Jerin kayan aiki zuwa wurin gini mai aiki– Gina wurin shakatawa na Hollywood Park yana ɗaya daga cikin manyan ayyukan gine-gine na birane a Amurka. Ana buƙatar a jera jigilar bututun tan 2,340 na manyan diamita. Womic ta isar da bututun a cikin jigilar kaya 6 cikin watanni 8, kowannensu an tsara zai isa jim kaɗan kafin a saka shi. An jigilar bututun daga Shanghai zuwa tashar jiragen ruwa ta Los Angeles, sannan aka kai manyan motoci kilomita 8 zuwa wurin. Mun yi amfani da kwantena masu faɗi don bututun 1,016mm da 1,220mm don guje wa lalacewa.

●Bukatun Amurka na Sayi Amurka– Aikin ya buƙaci a yi watsi da ƙarfe na ƙasashen waje saboda injinan niƙa na cikin gida na Amurka ba za su iya samar da manyan diamita (1,220mm) a cikin kauri na bango da ake buƙata a cikin jadawalin ba. Womic ta bayar da cikakkun takardu waɗanda suka haɗa da takaddun shaidar injin, ƙasar asali, da kuma iya gano kayan. Mai shi ya amince da wannan rangwamen.

●Sakamako:An kammala gine-ginen hasumiyar watsawa a shekarar 2022. Sun zama abin lura a cikin ginin filin wasa na SoFi. Mai kwangilar ya ba da rahoton cewa duk bututun LSAW sun dace daidai ba tare da sake yin wani aiki ba. Kammalawar ƙarfe da aka fallasa ta sami yabo daga mai ginin. Tun daga lokacin an gayyaci Womic Steel don yin tayin ƙarin ayyukan ƙarfe na gine-gine a Amurka.

Tuntuɓi:
Yanar Gizo: www.womicsteel.com
Imel: sales@womicsteel.com

Waya / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel – Abokin hulɗarka mai aminci ga bututun ƙarfe na ASTM A500 Grade C LSAW don gina ginshiƙai, trusses na gadoji, hasumiyoyin watsawa, da aikace-aikacen gine-gine masu nauyi a duk duniya.