ASTM A500 chitsulondi machubu achitsulo owumbidwa ozizira komanso osasunthika a chitsulo cha kaboni kuti azitha milatho yowotcherera, yopindika, kapena yomangika ndi zomangira ndi zolinga zake zonse.
Navigation Mabatani
Hollow Gawo Maonekedwe
Gulu la Maphunziro
Size Range
Zida zogwiritsira ntchito
Njira Zopangira
Tube End Type
Kutentha Chithandizo
Chemical Composition of ASTM A500
Zofunikira za Tensile za ASTM A500
Mayeso a Flattening
Kuyesa kwa Flaring
Dimensional Tolerance ya ASTM A500
Chizindikiro cha Tube
Mapulogalamu a ASTM A500
Zida Zina za ASTM A500
Zathu Zogwirizana
Hollow Gawo Maonekedwe
Zitha kukhalazozungulira, masikweya, amakona anayi, kapena mawonekedwe ena apadera.
Nkhaniyi ikufotokoza zofunikira za ASTM A500 pazitsulo zozungulira.
Gulu la Maphunziro
ASTM A500 imayika chitoliro chachitsulo m'magulu atatu,giredi B, giredi C, ndi giredi D.
Ndizofunikira kudziwa kuti mitundu yakale ya ASTM A500 inalinso ndi Gulu A, yomwe idachotsedwa mu mtundu waposachedwa wa 2023.
Size Range
Kwa machubu okhala ndi m'mimba mwake ≤ 2235mm [88in] ndi makulidwe a khoma ≤ 25.4mm [1in].
Zida zogwiritsira ntchito
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 chosungunula cha nkhumba, ndikuchotsa zinthu zina zosafunikira 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 ndikuchepetsa mwachindunji chitsulo, ndipo imakhala yothandiza kwambiri popanga magiredi apadera ndikuwongolera nyimbo za alloy, komanso kupanga batch yaying'ono.
Njira Zopangira
Njira yopanda msoko kapena kuwotcherera.
Machubu opangidwa ndi welded amapangidwa kuchokera ku chitsulo chopindika chathyathyathya pogwiritsa ntchito njira ya electric-resistance-welding (RW).Msoko wa weld uyenera kuwotcherera kuti chitoliro chikhale cholimba.
Mapaipi opangidwa ndi njira yowotcherera nthawi zambiri samachotsa chowotcherera chamkati.
Tube End Type
Ngati sichofunikira kwenikweni, machubu apangidwe ayenera kukhalazopanda malirendi woyera wa burrs.
Kutentha Chithandizo
Grade B ndi Grade C
Ikhoza kuchepetsedwa kapena kuchepetsa nkhawa.
Annealing imatheka potenthetsa chubu mpaka kutentha kwambiri kenako ndikuziziritsa pang'onopang'ono.Annealing imapanganso microstructure yazinthu kuti zikhale zolimba komanso zofanana.
Kuchepetsa kupsinjika kumachitika potenthetsa zinthuzo kuti pakhale kutentha kocheperako (nthawi zambiri kutsika poyerekeza ndi kutsekereza) kenako kuzigwira kwakanthawi ndikuziziziritsa.Izi zimathandiza kupewa kupotoza kapena kuphulika kwa zinthu panthawi ya ntchito zotsatila monga kuwotcherera kapena kudula.
Gulu D
Chithandizo cha kutentha chimafunika.
Ziyenera kuchitidwa pa kutentha kwa osachepera1100 ° F (590 ° C) kwa ola limodzi pa makulidwe a khoma la 25 mm.
Chemical Composition of ASTM A500
Njira yoyesera: ASTM A751.
Zofunikira za Tensile za ASTM A500
Zitsanzo zidzakwaniritsa zofunikira za ASTM A370, Zowonjezera A2.
Mayeso a Flattening
Welded Round Structural Tubes
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.
Machubu Ozungulira Osasinthika
Utali Wachitsanzo: Kutalika kwa chitsanzo chogwiritsidwa ntchito poyesa sikuyenera kuchepera 2 1/2 mu (65 mm).
Mayeso a Ductility: Popanda kusweka kapena kuthyoka, chitsanzocho chimaphwanyidwa pakati pa mbale zofananira mpaka mtunda wapakati pa mbale ndi wocheperapo kusiyana ndi mtengo wa "H" wowerengedwa ndi ndondomekoyi:
H=(1+e)t/(e+t/D)
H = mtunda pakati pa mbale zopalasa, mkati [mm],
e= deformation pa kutalika kwa unit (nthawi zonse pamlingo woperekedwa wachitsulo, 0.07 wa Gulu B, ndi 0.06 wa Gulu C),
t= makulidwe a khoma la chubu, mkati [mm],
D = kutchulidwa kunja kwake kwa chubu, mkati. [mm].
UmphumphutEst: Pitirizani kuphwanyitsa chitsanzocho mpaka chitsanzocho chisweka kapena makoma otsutsana ndi chitsanzowo akumane.
Kulepheracriteria: Kupukuta kwa laminar kapena zinthu zofooka zomwe zimapezeka panthawi yonse yoyezetsa kupendekera zidzakhala zifukwa zokanira.
Kuyesa kwa Flaring
Kuyesa koyaka kumapezeka kwa machubu ozungulira ≤ 254 mm (10 mu) m'mimba mwake, koma sikofunikira.
Dimensional Tolerance ya ASTM A500
Chizindikiro cha Tube
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.
Mapulogalamu a ASTM A500
Chifukwa cha makina ake abwino kwambiri komanso kuwotcherera, chitoliro chachitsulo cha ASTM A500 chimagwiritsidwa ntchito m'mapangidwe osiyanasiyana komwe kumafunika kulimba ndi mphamvu.
Zomangamanga: Amagwiritsidwa ntchito pothandizira zomangira monga zomangira, zomangira padenga, zida zopangira ma arch, ndi mizati yozungulira.
Kumanga mlatho: Pazinthu zamapangidwe a milatho, monga mizati yozungulira yonyamula katundu ndi ma trusses a milatho.
Zomangamanga zamakampani: M'nyumba zazikulu zamafakitale monga malo opangira mafuta ndi gasi, malo opangira mankhwala, ndi mphero zazitsulo, machubu achitsulo ozungulira amagwiritsidwa ntchito pomanga nyumba zothandizira ndi mapaipi otumizira.
Kachitidwe kamayendedwe: Kwa zikwangwani zamagalimoto, mizati yamagetsi, ndi ma struts achitetezo.
Kupanga makina: Monga gawo la makina ndi zida zolemera, monga makina aulimi, zida zamigodi, ndi makina omanga.
Zothandizira: Amagwiritsidwa ntchito m'mapaipi amadzi, gasi, mafuta amafuta, etc., komanso ngati mapaipi oteteza waya ndi chingwe.
Zida zamasewera: Pomanga malo ochitira masewera, machubu achitsulo ozungulira amagwiritsidwa ntchito popanga ma bleachers, nsanja zowunikira, ndi zina zothandizira.
Mipando ndi zokongoletsera: Machubu achitsulo ozungulira amagwiritsidwa ntchito popanga mipando yachitsulo, monga miyendo ya matebulo ndi mipando, komanso zinthu zokongoletsera zamakono zamakono.
Mipanda ndi njanji machitidwe: Amagwiritsidwa ntchito ngati mizati ya mipanda ndi njanji, makamaka komwe kumafunikira mphamvu ndi kulimba.
Zida Zina za ASTM A500
Chithunzi cha ASTM A501: Uwu ndi muyeso wamachubu opangidwa ndi chitsulo cha kaboni chotentha, chofanana ndi ASTM A500, koma chimagwira ntchito popanga kupanga zotentha.
ASTM A252: Mulingo wa milu yazitsulo zamapaipi kuti ugwiritse ntchito pamaziko ndi ntchito yochulukira.
Chithunzi cha ASTM A106: Wopanda mpweya zitsulo chitoliro, amangogwiritsa ntchito m'madera apamwamba kutentha.
Chithunzi cha ASTM A53: Mtundu wina wa mpweya zitsulo chitoliro kwa kuthamanga ndi ntchito makina, chimagwiritsidwa ntchito kachitidwe madzi kutengerapo.
EN 10210: Ku Europe, muyezo wa EN 10210 umatchula zaukadaulo woperekera zigawo zapakati zomangika zotentha, zomwe zimakhala ndi malo ofanana ndi ASTM A500.
CSA G40.21: Muyezo waku Canada womwe umapereka mitundu yambiri yazitsulo zamapangidwe mumagulu osiyanasiyana amphamvu omwe angagwiritsidwe ntchito pazofanana.
Chithunzi cha JIS G3466: Japan Industrial Standard for masikweya ndi amakona anayi machubu a carbon steel kuti agwiritsidwe ntchito mwadongosolo.
ndi 4923: Indian Standard ya magawo ozizira opangidwa ndi welded kapena opanda mpweya wa carbon steel structural hollow parts.
AS/NZS 1163: Miyezo yaku Australia ndi New Zealand yamachubu azitsulo zamapangidwe ndi magawo opanda kanthu.
Zathu Zogwirizana
Chiyambireni kukhazikitsidwa mu 2014, Botop Steel yakhala chitoliro chotsogola cha carbon steel ku Northern China, chomwe chimadziwika ndi ntchito zake zabwino kwambiri, zinthu zamtengo wapatali, komanso mayankho athunthu.Zogulitsa zambiri za kampaniyi zikuphatikiza mapaipi opanda zitsulo, ERW, LSAW, ndi SSAW, komanso zopangira mapaipi, ma flanges, ndi zitsulo zapadera.
Ndi kudzipereka kwakukulu ku khalidwe, Botop Steel imagwiritsa ntchito maulamuliro okhwima ndi mayesero kuti atsimikizire kudalirika kwa zinthu zake.Gulu lake lodziwa zambiri limapereka mayankho aumwini ndi chithandizo cha akatswiri, ndikuyang'ana kukhutira kwamakasitomala.
Tags: astm a500, astm a500 giredi b, astm a500 giredi c, astm a500 giredi d.
Nthawi yotumiza: May-04-2024