ASTM A500 ndi machubu achitsulo owumbidwa ozizira komanso osasunthika a chitsulo cha kaboni kuti azitha milatho yowotcherera, yopindika, kapena yomangika ndi zomangira ndi zolinga zake zonse.
Gulu Bndi chubu chosunthika chozizira chopangidwa ndi chitsulo chosasunthika kapena chosasunthika chokhala ndi mphamvu zokolola zosachepera 315 MPa [46,000 psi] ndi mphamvu yolimba yosachepera 400 MPa [58,000], yomwe imagwiritsidwa ntchito pomanga zosiyanasiyana. ndi ntchito zamakina zamakina chifukwa cha kukhazikika kwake komanso kukhazikika kwake.
ASTM A500 imayika chitoliro chachitsulo m'magulu atatu,giredi B,kalasi C, ndi grade D.
Za machubu ndikunja awiri ≤ 2235mm [88in]ndikhoma makulidwe ≤ 25.4mm [1in].
Komabe, ngati njira yowotcherera ya ERW ikugwiritsidwa ntchito, mapaipi okha okhala ndi mainchesi 660 mm ndi makulidwe a khoma la 20 mm angapangidwe.
Ngati mukufuna kugula chitoliro chokhala ndi makulidwe akulu akulu akulu, mutha kusankha kugwiritsa ntchito njira yowotcherera ya SAW.
CHS: Zigawo zozungulira zozungulira.
RHS: Magawo apakati kapena amakona anayi.
EHS: Magawo ozungulira ozungulira.
Chitsulocho chidzapangidwa ndi chimodzi kapena zingapo mwa njira zotsatirazi:zofunika mpweya kapena ng'anjo magetsi.
Basic Oxygen Process: Iyi ndi njira yamakono yofulumira kupanga zitsulo, zomwe zimachepetsa mpweya wa carbon powombera mpweya muchitsulo chosungunuka cha nkhumba ndikuchotsa zinthu zina zosafunika monga sulfure ndi phosphorous.Ndizoyenera kupanga mofulumira zitsulo zambiri.
Njira ya Ng'anjo Yamagetsi: Njira ya Ng'anjo Yamagetsi imagwiritsa ntchito arc yamagetsi yotentha kwambiri kuti isungunuke zinyalala ndi kuchepetsa mwachindunji chitsulo, ndipo imakhala yothandiza kwambiri popanga magiredi apadera ndikuwongolera nyimbo za alloy, komanso kupanga magulu ang'onoang'ono.
Machubu amapangidwa ndi aelectric-resistance-welded (ERW)ndondomeko.
ERW chitoliro ndi njira yopangira chowotcherera pokulunga zitsulo zachitsulo mu silinda ndikugwiritsa ntchito kukana ndi kukakamiza kutalika kwake.
Machubu a Gulu B amatha kuchepetsedwa kapena kuchepetsedwa.
Kapangidwe kakemidwe kachitsulo ka ASTM A500 Kalasi B kumaphatikizapo kuchuluka kwa kaboni ndi manganese kuti zitsimikizire makina abwino komanso kuwotcherera.Panthawi imodzimodziyo, milingo ya phosphorous ndi sulfure imayendetsedwa mwamphamvu kuti zisawonongeke, ndipo kuwonjezera pang'ono kwa mkuwa kumawonjezera kukana kwa dzimbiri.
Katunduwa ndi oyenera kugwiritsiridwa ntchito kwamapangidwe, makamaka m'malo omwe kutenthetsa bwino ndi kulimba kumafunikira.
Zitsanzo zidzakwaniritsa zofunikira za ASTM A370, Zowonjezera A2.
| Mndandanda | Gulu B | |
| Mphamvu zolimba, min | psi | 58,000 |
| MPa | 400 | |
| Mphamvu zokolola, min | psi | 46,000 |
| MPa | 315 | |
| Elongation mu 2 in. (50 mm), min,C | % | 23A |
| AImakhudza makulidwe a khoma (t ) ofanana kapena okulirapo kuposa 0.180 in. [4.57mm].Pa makulidwe opepuka a makoma, milingo yocheperako yotalikirapo iyenera kuwerengedwa motsatira ndondomekoyi: kutalika kwa maperesenti mu 2 in.Pa A500M gwiritsani ntchito njira iyi: 2.4t+ 12, yozungulira mpaka peresenti yapafupi. CMachulukidwe ochepera omwe atchulidwa amagwira ntchito pamayesero omwe adachitika asanatumize chubu. | ||
WeldductilitytEst: Pogwiritsa ntchito chitsanzo chosachepera mainchesi 4 (100 mm) kutalika, tambasulani chitsanzocho ndi weld pa 90 ° kuti mulowetse mpaka mtunda wapakati pa mbale ukhale wosakwana 2/3 wa kunja kwa chitoliro.chitsanzocho sichidzaphwanyidwa kapena kusweka mkati kapena kunja kwa malo panthawiyi.
Pipe ductility test: pitirizani kuphwanyitsa chitsanzocho mpaka mtunda pakati pa mbale ukhale wosakwana 1/2 wa m'mimba mwake akunja a chitoliro.panthawiyi, chitolirocho sichiyenera kukhala ndi ming'alu kapena fractures pamtunda wamkati ndi kunja.
UmphumphutEst: Pitirizani kuphwanyitsa chitsanzocho mpaka kuthyoka kuchitike kapena mpaka zofunikira za makulidwe a khoma zitakwaniritsidwa.Ngati umboni wa ply peeling, zinthu zosakhazikika, kapena welds wosakwanira utapezeka panthawi yoyeserera, chitsanzocho chidzaweruzidwa kukhala chosakwanira.
Kuyesa koyaka kumapezeka kwa machubu ozungulira ≤ 254 mm (10 mu) m'mimba mwake, koma sikofunikira.
Machubu onse azikhala opanda chilema ndipo azikhala ndi malekezero ngati amisiri.
Kupanda ungwiro kwapamwamba kudzawerengedwa ngati zolakwika pamene kuya kwake kumachepetsa makulidwe a khoma lotsalalo kukhala osachepera 90 % ya makulidwe omwe atchulidwa.
Zowonongeka mpaka 33% za makulidwe a khoma lakuya zitha kuthetsedwa mwa kudula kapena kupera kuti amalize zitsulo.
Ngati kuwotcherera kwa filler kumagwiritsidwa ntchito, njira yowotchera yonyowa idzagwiritsidwa ntchito ndipo chitsulo chotuluka chimachotsedwa kuti chikhale chosalala.
Zowonongeka zapamtunda, monga zogwirira ntchito, nkhungu zing'onozing'ono kapena zolembera, kapena maenje osaya, sizimaganiziridwa ngati zolakwika malinga ngati zitha kuchotsedwa mkati mwa makulidwe a khoma lotchulidwa.
Izi ziyenera kuphatikizidwa:
Dzina la wopanga: Ili litha kukhala dzina lathunthu la wopanga kapena chidule.
Chizindikiro kapena Chizindikiro: Dzina lachidziwitso kapena chizindikiro chomwe wopanga amagwiritsa ntchito kusiyanitsa zinthu zake.
Specification DesignatorASTM A500, yomwe siyenera kuphatikiza chaka chosindikizidwa.
Kalata ya Gulu: B, C kapena D giredi.
Pamachubu omangika ≤ 100mm (4in) m'mimba mwake, zilembo zitha kugwiritsidwa ntchito kuyika chizindikiro bwino lomwe.
Amagwiritsidwa ntchito makamaka pazolinga zamapangidwe, amapereka mphamvu zamakina ndi kuwotcherera kuti zithandizire kupanga ndi kumanga zomangamanga ndi zomangamanga.
Chitoliro chachitsulo ichi chimagwiritsidwa ntchito kwambiri pomanga mafelemu, milatho, zipangizo zamafakitale, ndi zigawo zina zamagulu zomwe zimafuna mphamvu ndi kulimba.
ASTM A370: Njira Zoyesera ndi Tanthauzo la Kuyesa Kwamakina Pazinthu Zazitsulo.
ASTM A700: Chitsogozo cha Kuyika, Kuyika Chizindikiro, ndi Kuyika Njira Zopangira Zida Zachitsulo Zotumiza.
ASTM A751: Njira Zoyesera ndi Zochita Zowunikira Ma Chemical Pazinthu Zazitsulo.
Terminology ya ASTM A941 Yokhudza Chitsulo, Chitsulo Chosapanga dzimbiri, Ma Aloyi Ogwirizana, ndi Ferroalloys.
Malinga ndi zofuna za makasitomala, mankhwala odana ndi dzimbiri a zitsulo zazitsulo amatha kuchitidwa m'njira zosiyanasiyana kuti apititse patsogolo kukana kwa dzimbiri ndikutalikitsa moyo wake wautumiki.
Kuphatikizapo varnish, utoto, galvanization, 3PE, FBE, ndi njira zina.
Ndife apamwamba welded mpweya zitsulo chitoliro wopanga ndi katundu kuchokera China, komanso msokonezo zitsulo chitoliro stockist, kukupatsani osiyanasiyana zitsulo chitoliro njira!
Ngati mukufuna kudziwa zambiri za mankhwala zitsulo chitoliro, mukhoza kulankhula nafe!
