I-ASTM A671 kunye ne-A672 yomibini imigangatho yetyhubhu yentsimbi eyenziwe kwiipleyiti zomgangatho wesitya soxinzelelo ngokudibanisa i-electric fusion welding (EFW) ubuchule kunye nokongezwa kweentsimbi zokugcwalisa.
Nangona ziyafana kwimiba emininzi, njengeemfuno ze-welding, unyango lobushushu, kunye nokunyamezelwa kwe-dimensional, ziyahluka kwi-scope yazo yesicelo, ibakala, iklasi, imilinganiselo, kunye nezicelo ezithile.
Ububanzi beSicelo
I-ASTM A671:Inkcazelo eMiselweyo yoMbhobho weNtsimbi weFusion-Welded woMbane woBubushushu obusemoyeni kunye noBubushushu obusezantsi.
I-ASTM A672: Inkcazo esemgangathweni yoMbhobho weSimbi oFusion-welded woMbane weNkonzo yoxinzelelo oluphezulu kumaqondo obushushu aphakathi
Ubungakanani Uluhlu
I-ASTM A671: DN≥ 400 mm [16 in] kunye ne-WT ≥ 6 mm [1/4].
I-ASTM A672: DN≥400mm[16 in] kunye ne-WT≤75mm[3 kwi].
Uthelekiso lweKlasi
Iityhubhu zihlelwa ngokohlobo lonyango lobushushu abalufumanayo ngexesha lenkqubo yokuvelisa kunye nokuba ngaba bahlolwe nge-radiographical kunye noxinzelelo.
I-ASTM A671 inoluhlu olubanzi lweendidi kune-ASTM A672, ebonisa indlela ye-A671 eyongezelelekileyo yokwahlulahlula izixhobo zobunzima kunye neendlela zokusilela ezinokuthi zenzeke kwiindawo ezinobushushu obuphantsi.
Oku kungenxa yokuba umgangatho we-A671 ubonelela ngokucazululwa okucacileyo kweempawu zobushushu obuphantsi obuyilelwe ukuqinisekisa ukuba umbhobho uya kuqhubeka uqhuba kakuhle kwiimeko ezibandayo.Ngokwahlukileyo, i-ASTM A672 igxile ekuziqhelaniseni neengcinezelo ezahlukeneyo kunye neemeko zokushisa eziphakathi, ezibandakanya ukujongana nokulawula iintlobo ezahlukeneyo zoxinzelelo.
Uthelekiso lweBanga
Ihlelwe ngokohlobo lwepleyiti esetyenziselwa ukuvelisa iityhubhu zentsimbi.
Amabakala ahlukeneyo amele ukubunjwa kweekhemikhali ezahlukeneyo kunye neempawu zomatshini zoxinzelelo oluhlukeneyo kunye neemeko zokushisa.
Amabanga ahlukeneyo anokuchaphazela iindleko kunye nokusebenza kweprojekthi.
Ukusebenzisa ibakala eliphezulu lombhobho wensimbi ngokuqhelekileyo kuthetha iindleko eziphezulu zezinto eziphathekayo, kodwa ukhetho olufanelekileyo lwezinto eziphathekayo lunokunciphisa iindleko zokugcina kunye nokwandisa ubomi benkonzo kwixesha elide.
Izicelo ezithile
Izicelo ze-ASTM A671 ye-Steel Tubing
Iinkonzo zeCryogenic: ezifana ne-liquefied natural gas (LNG) yokuphatha kunye neenkqubo zothutho, zifuna iityhubhu ezikwazi ukugcina iimpawu ezilungileyo zoomatshini kumaqondo obushushu aphantsi kakhulu.
Iinkqubo zokubonelela ngegesi yeSixeko: Kwezi nkqubo, iipayipi zingadinga ukusebenza kumaqondo okushisa aphantsi ebusika, ngoko ke amabakala athile ombhobho yensimbi afunekayo ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle.
Amaziko okulungisa imichiza: Kwiinkqubo zokucutshungulwa kweekhemikhali kunye nokupholisa, ulwelo oluthile luphathwa kumaqondo aphantsi kakhulu, afuna ukusetyenziswa kombhobho we-ASTM A671 ukuthintela ukugqabhuka kombhobho ngenxa yokuphazamiseka kwiqondo lokushisa eliphantsi.
Amaqonga angaphesheya kunye nezixhobo zokomba ioyile: Ezi zixhobo zihlala zihlala emanzini abandayo, kwaye ukusetyenziswa kombhobho we-A671 kuqinisekisa ukuthembeka kunye nokuqina kwiindawo ezibandayo zaselwandle.
Izicelo ze-ASTM A672 Steel Tubing
Izityalo zamandla: Ngokukodwa kwiinkqubo zebhoyili kunye ne-steam, ezi nkqubo zifuna imibhobho echasene namaqondo okushisa aphezulu kunye noxinzelelo lokudluliselwa okukhuselekileyo komphunga kunye namanzi ashushu.
IiRefineries: Kwinkqubo yokucocwa, imibhobho iyadingeka ukuhambisa ngokufanelekileyo i-oyile ekrwada kunye neemveliso phakathi kwezikhululo ezahlukeneyo zokusetyenzwa, kwaye le mibhobho kufuneka ikwazi ukumelana namaqondo obushushu aphezulu kunye nokuhlaselwa kweekhemikhali kwenkqubo.
Iintambo zoThutho loxinzelelo oluphezulu: Imigca yokuhanjiswa koxinzelelo oluphezulu isetyenziselwa ukuthutha i-high-pressure fluids okanye iigesi ezifana negesi yendalo kunye neoli.
IiNkqubo zoxinzelelo lwezoShishino: Kwimveliso kunye nezinye izicelo zoshishino, iinkqubo ezininzi zoxinzelelo zifuna umbhobho othembekileyo ophezulu wokuqinisekisa ukhuseleko lwemveliso kunye nokusebenza kakuhle.
Ngokwahlula phakathi kwezi zakhiwo kunye nezicelo, kuyacaca ukuba ngelixa imigangatho yemibhobho ye-ASTM A671 kunye ne-A672 idibana kwezinye iinkalo zobugcisa, zisebenza ngeenjongo ezahlukeneyo ngokuxhomekeke kwiimfuno ezithile zokusingqongileyo kunye nokusebenza.
tags:astm a671, astm a672, efw, iklasi, ibakala.
Ixesha lokuposa: Apr-23-2024