ASTM A500 ndi ASTM A513ndi miyezo yonse yopanga chitoliro chachitsulo ndi njira ya ERW.
Ngakhale kuti amagawana njira zopangira zinthu, zimasiyana kwambiri m'njira zingapo.
Mtundu wa Chitsulo
ASTM A500: Matchulidwe Okhazikika a Cold-Formed Welded and Seamless Carbon Steel Structural Tubing mu Rounds and Shapes
ASTM A500 ikhoza kukhala chitsulo cha carbon.
Chithunzi cha ASTM A513: Matchulidwe Okhazikika a Magetsi-Resistance-Welded Carbon ndi Alloy Steel Mechanical Tubing
ASTM A513 ikhoza kukhala chitsulo cha carbon kapena alloy steel.
Size Range
Njira Yopangira
ASTM A500 Kupanga Njira
Chophimbacho chidzapangidwa ndi anjira yopanda msoko kapena kuwotcherera.
Machubu opangidwa ndi welded amapangidwa kuchokera ku chitsulo chopindika chathyathyathya pogwiritsa ntchito njira ya electric-resistance-welding (RW).
A500 nthawi zambiri amapangidwa kuchokera ku chitsulo m'malo otenthedwa, kenako amakhala ozizira komanso amawotcherera.
Zindikirani: Kupukutira pansi kumatanthawuza ntchito yopangira zitsulo zomwe zimagwiritsidwa ntchito makamaka pazitsulo ndi zitsulo zina.Pochita izi, chitsulocho chimayamba ngati chochulukirapo (mwachitsanzo, ingot) ndipo chimaphwanyidwa kukhala mapepala kapena zokokera kudzera munjira yotentha kapena yozizira.
Njira Yopangira ASTM A513
Machubu adzapangidwa ndi njira yamagetsi-yokaniza-weld ndipo amapangidwa kuchokera kuzitsulo zotentha kapena zozizira monga momwe zafotokozedwera.
Kutentha Chithandizo
Chithandizo cha Kutentha kwa ASTM A500
Machubu omwe ali mu ASTM A500 nthawi zambiri safuna chithandizo cha kutentha.Izi ndichifukwa choti ASTM A500 idapangidwa kuti igwiritsidwe ntchito pamapangidwe, pomwe kugogomezera kumakhala mphamvu zokwanira komanso kulimba mtima.Machubuwa nthawi zambiri amapangidwa ndi kuzizira kupanga ndi kuwotcherera motsatira, pogwiritsa ntchito zida zachitsulo za kaboni zomwe zimakhala ndi mphamvu komanso zolimba.
Komabe, nthawi zina, kuti athe kukwaniritsa zinthu zamakina kapena kukwaniritsa zofunikira zaukadaulo, machubu ndi mapaipi a ASTM A500 amatha kuthandizidwa ndi kutentha kapena kuchepetsa nkhawa, makamaka komwe kupsinjika kotsalira kumachotsedwa pambuyo kuwotcherera.
Chithandizo cha Kutentha kwa ASTM A513
Muyezo wa ASTM A513 umapereka mitundu ingapo ya machubu, ena omwe amatha kutenthedwa kuti akwaniritse zomwe mukufuna.
NA(Osati Annealed) - Osati annealed;amatanthauza machubu achitsulo omwe sanatenthedwe ndi kutentha kapena kukokedwa, mwachitsanzo, amasiyidwa m'malo ake oyambirira pambuyo pa kuwotcherera kapena kujambula.Mankhwalawa amagwiritsidwa ntchito pazinthu zomwe palibe kusintha kwa makina kumafunika ndi chithandizo cha kutentha.
SRA(Stress Relieved Annealed) - Kupsyinjika Kumachepetsa Annealing;chithandizo cha kutenthachi chikuchitika pa kutentha pansi pa kutentha kwapansi kwa zinthuzo, ndi cholinga chachikulu chochotseratu zovuta zamkati zomwe zimapangidwira panthawi yokonza chubu, motero kuwongolera kukhazikika kwa zinthuzo ndikupewa kupunduka pambuyo pokonza.Ma annealing ochepetsa kupsinjika nthawi zambiri amagwiritsidwa ntchito popanga magawo olondola kuti awonetsetse kuti mawonekedwe ake ndi olondola.
N(Zosakhazikika kapena Zosasinthika) - Zokhazikika kapena zokhazikika;kutentha mankhwala pa kutentha pamwamba chapamwamba kwambiri kutentha kwa zinthu zimene njere kukula zitsulo akhoza woyengedwa ndi mawotchi katundu wake ndi kulimba bwino.Normalizing ndi njira yochizira yotenthetsera yomwe imagwiritsidwa ntchito kupititsa patsogolo makina azinthu kuti ikhale yoyenera kunyamula katundu wambiri.
Mapangidwe a Chemical ndi Mechanical Properties
Machubu a ASTM A500 adapangidwa kuti azingomanga ndipo ali ndi makina apadera (mphamvu zamakokedwe, mphamvu zokolola, kutalika) ndi mankhwala.
Amadziwika chifukwa cha weldability wake wabwino komanso ductility ndipo angagwiritsidwe ntchito m'mapangidwe omwe amafunikira kuchuluka kwa mphamvu ndi kulemera.
Pali mitundu ingapo ya machubu a ASTM A513, iliyonse ili ndi makina ake komanso mankhwala omwe amagwiritsidwa ntchito mwapadera.
Mwachitsanzo, machubu a Type 5 ndi chida chokokedwa ndi manja (DOM) chokhala ndi zolimba zolimba, kumaliza bwino kwapamwamba, komanso makina osasinthasintha.
Main Ntchito Magawo
ASTM A500 imagwiritsidwa ntchito kwambiri pazomangamanga monga nyumba, milatho, ndi zida zothandizira.Amagwiritsidwa ntchito pamene mphamvu zapamwamba ndi zomangamanga zimafunikira.
Komano, ASTM A513 imagwiritsidwa ntchito pamapulogalamu omwe amafunikira kulolerana kolondola kwambiri komanso kumaliza kwapamwamba.Zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo zida zamagalimoto ndi zida zamakina zomwe zingafunike kulumikizidwa bwino kwambiri.
Mtengo
Zogulitsa za ASTM A500 nthawi zambiri zimakhala zotsika mtengo chifukwa cha kulondola kwapang'onopang'ono pakupanga.
ASTM A513, makamaka Type 5 (DOM), imatha kukhala yokwera mtengo kwambiri chifukwa cha makina owonjezera omwe amafunikira kuti akhale olondola komanso omaliza.
Choncho, kusankha pakati pa mitundu iwiri ya chitoliro chachitsulo chiyenera kukhazikitsidwa pa zosowa zenizeni za polojekitiyi.
Ngati polojekitiyo ikufuna mphamvu zamapangidwe komanso kulimba, ASTM A500 ndi chisankho choyenera kwambiri.Pomwe, pamapulogalamu omwe amafunikira kulondola kwambiri komanso mawonekedwe abwino kwambiri, ASTM A513 ingakhale yabwino.
Tags: ASTM a500 vs a513, astm a500, astm a513, carbon steel chubu.
Nthawi yotumiza: May-08-2024