Kumvetsetsa ASTM A139: Msana wa SAWH Pipe ndi Spiral Welded Pipe Applications

M'dziko la mapaipi a mafakitale, ma code ndi miyezo yoyendetsera zinthu zomwe zimagwiritsidwa ntchito ndizofunikira kuti zitsimikizire chitetezo, kulimba ndi ntchito. Imodzi mwa miyezo imeneyi ndiASTM A139, yomwe imagwira ntchito yofunika kwambiri popanga ndi kugwiritsa ntchito mapaipi a SAWH (spiral arc welded hollow) ndi mapaipi ozungulira. Mu blog iyi, tikambirana za kufunika kwa ASTM A139, makhalidwe a SAWH pipe, ndi ubwino wa Helical Welded Pipe m'mafakitale osiyanasiyana.

Kodi ASTM A139 ndi chiyani?

ASTM A139 ndi ndondomeko yopangidwa ndi American Society for Testing and Materials (ASTM) yomwe imafotokoza zofunikira pa electrofusion (arc) welded steel pipe. Mulingo uwu umagwira ntchito makamaka pamapaipi omwe amagwiritsidwa ntchito kunyamula zakumwa ndi mpweya. Mafotokozedwewo amakhudza mitundu yambiri yazitsulo ndikuwonetsetsa kuti mapaipi opangidwa amakumana ndi makina enieni komanso mapangidwe a mankhwala.

Muyezo wa ASTM A139 ndi wofunikira kwa opanga ndi mainjiniya chifukwa umapereka chitsogozo pakupanga, kuphatikiza njira zowotcherera ndi njira zowongolera zomwe ziyenera kuchitidwa. Potsatira miyezo imeneyi, opanga amatha kuonetsetsa kuti katundu wawo ndi wodalirika komanso woyenera pa ntchito zosiyanasiyana, kuchokera ku kayendedwe ka mafuta ndi gasi kupita ku zomangamanga.

Udindo wa mapaipi a SAWH

SAWH chitoliro kapena spiral arc welded hollow chitoliro ndi mtundu wa welded chitoliro wopangidwa ndi spiral kuwotcherera lathyathyathya zitsulo n'kupanga mawonekedwe cylindrical. Njira yopangira iyi imalola kupanga mapaipi akulu akulu omwe ali amphamvu komanso opepuka. Tekinoloje ya spiral welding yomwe imagwiritsidwa ntchito muZithunzi za SAWH imapereka zabwino zingapo, kuphatikiza:

1. Mtengo Wabwino:Njira yopangira mapaipi a SAWH nthawi zambiri imakhala yotsika mtengo kuposa njira zachikhalidwe, zomwe zimapangitsa kuti ikhale yosangalatsa pama projekiti akuluakulu.

2. KUSINTHA:Chitoliro cha SAWH chikhoza kupangidwa mu kukula kwake ndi makulidwe osiyanasiyana, ndikupangitsa kuti ikhale yoyenera ntchito zosiyanasiyana, kuphatikizapo madzi, machitidwe a madzi otayira, ndi zigawo za zomangamanga.

3. Mphamvu Zowonjezera:Kumanga kwa spiral welded kumapereka mphamvu zowonjezera komanso kukana kukakamizidwa kwakunja, kupangitsa chitoliro cha SAWH kukhala choyenera kwa malo opsinjika kwambiri.

Ubwino wozungulira welded chitoliro

Spiral welded chitoliro ndi mtundu wina wa welded chitoliro opangidwa pogwiritsa ntchito luso kuwotcherera kozungulira. Njirayi imaphatikizapo kukulunga chingwe chachitsulo kuzungulira mandrel ndikuwotcherera mozungulira mosalekeza.Chitoliro cha Helical Welded imapereka zabwino zingapo, kuphatikiza:

1. Mayendedwe oyenda bwino:Malo osalala amkati a Helical Welded Pipe amachepetsa chipwirikiti ndikuwonjezera kutuluka kwamadzimadzi, ndikupangitsa kuti ikhale yabwino pantchito zamafuta ndi gasi.

2. KUCHEPETSA KULEMERA:Mapangidwe ozungulira amalola makoma owonda popanda kusokoneza mphamvu, kupangitsa kuti chitolirocho chikhale chopepuka komanso chosavuta kuchigwira ndi kunyamula.

3. Utali Wosintha Mwamakonda:Chitoliro cha Helical Welded chikhoza kupangidwa motalika, kuchepetsa chiwerengero cha ziwalo zofunika mu chitoliro ndikuchepetsa kuthekera kwa kutuluka.

Pomaliza

Mwachidule, ASTM A139 ndi muyezo wofunikira popanga chitoliro cha SAWH ndi chitoliro chowotcherera chozungulira, kuwonetsetsa kuti zigawo zofunika izi zikukwaniritsa zofunikira zachitetezo ndi magwiridwe antchito. Zapadera za SAWH ndi spiral welded pipe zimawapangitsa kukhala ofunikira m'mafakitale kuyambira pakumanga mpaka mphamvu. Pamene ukadaulo ukupitilira kupita patsogolo, kufunikira kotsatira miyezo yokhazikitsidwa ngati ASTM A139 kudzangokulirakulira kuti zitsimikizire kuti zomangamanga zomwe timadalira zimakhala zotetezeka komanso zogwira mtima. Kaya ndinu mainjiniya, kontrakitala, kapena woyang'anira projekiti, kumvetsetsa miyezo iyi komanso ubwino wa mitundu ya mapaipiyi ndikofunikira kuti mupange zisankho mwanzeru pamapulojekiti anu.