I-ASTM A671 kunye ne-A672 zombini ziyimigangatho yemibhobho yentsimbi eyenziwe ngeepleyiti zomgangatho wesitya soxinzelelo ngeendlela zokudibanisa ngombane (EFW) ngokongeza iintsimbi zokuzalisa.
Nangona zifana kwiinkalo ezininzi, ezifana neemfuno zokuwelda, unyango lobushushu, kunye nokunyamezelana kobukhulu, zahlukile kububanzi bokusetyenziswa kwazo, ibanga, udidi, ubukhulu, kunye nokusetyenziswa okuthile.
Ububanzi besicelo
I-ASTM A671:Iinkcazo eziQhelekileyo zePipe yeNsimbi eDityanisiweyo yoMbane kwi-Atmospheric and Low
I-ASTM A672: Inkcazo esemgangathweni yePipe yeNsimbi eDityanisiweyo yoMbane kwiNkonzo yoXinzelelo oluPhezulu kumaqondo obushushu aPhakathi
Uluhlu lobungakanani
I-ASTM A671: DN≥ 400 mm [16 in] kunye neWT ≥ 6 mm [1/4].
I-ASTM A672: DN≥400mm[16 in] kunye ne-WT≤75mm[3 in].
Uthelekiso lweeKlasi
Iityhubhu zahlulwe ngokohlobo lonyango lobushushu ezilufumanayo ngexesha lenkqubo yokwenziwa kwazo kunye nokuba zihlolwe nge-radiographic okanye hayi kwaye uvavanyo loxinzelelo luyaqhubeka.
I-ASTM A671 inoluhlu olubanzi lweendidi kune-ASTM A672, ebonisa indlela ye-A671 enobuchule ngakumbi yokwahlulahlula izixhobo ngokweendlela zokubuthathaka kunye nokungaphumeleli ezinokwenzeka kwiindawo ezinobushushu obuphantsi.
Oku kungenxa yokuba umgangatho we-A671 ubonelela ngohlalutyo oluneenkcukacha lweempawu zobushushu obuphantsi ezenzelwe ukuqinisekisa ukuba umbhobho uya kuqhubeka usebenza kakuhle kwiimeko ezibandayo. Ngokwahlukileyo koko, i-ASTM A672 igxile ekuziqhelaniseni noxinzelelo olwahlukeneyo kunye neemeko zobushushu eziphakathi, nto leyo ebandakanya ukujongana nokulawula iintlobo ezahlukeneyo zoxinzelelo.
Uthelekiso lweBanga
Zihlulwe ngokwehlobo lwepleyiti esetyenziselwa ukwenza iityhubhu zentsimbi.
Iindidi ezahlukeneyo zimele ukwakheka kweekhemikhali ezahlukeneyo kunye neempawu zoomatshini kwiimeko ezahlukeneyo zoxinzelelo kunye nobushushu.
Amanqanaba ahlukeneyo anokuchaphazela iindleko kunye nokusebenza kweprojekthi.
Ukusebenzisa umbhobho wentsimbi okumgangatho ophezulu kudla ngokuthetha iindleko eziphezulu zezinto zokwakha, kodwa ukukhetha izinto ngokufanelekileyo kunokunciphisa iindleko zokugcina izinto nokwandisa ubomi benkonzo ekuhambeni kwexesha.
Izicelo ezithile
Izicelo ze-ASTM A671 Steel Tubing
Iinkonzo zeCryogenic: njengeenkqubo zokuphatha kunye nezokuthutha igesi yendalo enyibilikisiweyo (LNG), zifuna iityhubhu ezikwaziyo ukugcina iipropati ezilungileyo zoomatshini kumaqondo obushushu aphantsi kakhulu.
Iinkqubo zokubonelela ngegesi yesixeko: Kwezi nkqubo, imibhobho ingadinga ukusebenza kumaqondo obushushu aphantsi asebusika, ngoko ke kufuneka amanqanaba athile emibhobho yentsimbi ukuqinisekisa ukhuseleko nokusebenza kakuhle.
Iindawo zokucubungula iikhemikhali: Kwiinkqubo zokucubungula iikhemikhali kunye nokupholisa, ulwelo oluthile luphathwa kumaqondo obushushu aphantsi kakhulu, nto leyo edinga ukusetyenziswa kombhobho we-ASTM A671 ukuthintela ukuqhekeka kombhobho ngenxa yokuqhekeka kumaqondo obushushu aphantsi.
Amaqonga aselunxwemeni kunye neendawo zokumba ioyileEzi zixhobo zihlala zifumaneka emanzini abandayo, kwaye ukusetyenziswa kombhobho we-A671 kuqinisekisa ukuthembeka nokuqina kwiindawo ezibandayo zaselwandle.
Izicelo ze-ASTM A672 Steel Tubing
Izityalo zombane: Ingakumbi kwiinkqubo zebhoyila kunye nomphunga, ezi nkqubo zifuna imibhobho engamelaniyo namaqondo obushushu aphezulu kunye noxinzelelo ukuze kudluliselwe umphunga kunye namanzi ashushu ngokukhuselekileyo.
Iindawo zokuhluza: Kwinkqubo yokucoca, kufuneka imibhobho ukuze kuhanjiswe ioyile ekrwada kunye neemveliso ngokufanelekileyo phakathi kwezikhululo ezahlukeneyo zokucubungula, kwaye le mibhobho kufuneka ikwazi ukumelana namaqondo obushushu aphezulu kunye nohlaselo lweekhemikhali lwenkqubo.
Imigca yoThumelo oluPhezulu: Imigca yokudlulisa uxinzelelo oluphezulu isetyenziselwa ukuthutha ulwelo oluphezulu okanye iigesi ezifana negesi yendalo kunye neoyile.
Iinkqubo zoxinzelelo lwezoshishino: Kwimisebenzi yokuvelisa nakwezinye iindawo zoshishino, iinkqubo ezininzi zoxinzelelo zifuna imibhobho enoxinzelelo oluphezulu oluthembekileyo ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle kwemveliso.
Ngokwahlula phakathi kwezi mpawu kunye nokusetyenziswa kwazo, kuyacaca ukuba nangona imigangatho yepayipi ye-ASTM A671 kunye ne-A672 idibana kwezinye iinkalo zobugcisa, isebenza ngeenjongo ezahlukeneyo ngokuxhomekeke kwiimfuno ezithile zokusingqongileyo kunye nokusebenza.
tags:astm a671, astm a672, efw, iklasi, ibakala.
Ixesha leposi: Epreli-23-2024