Ukuba ufuna ukwazi ulwazi oluthe kratya, olufana neekowuteshini, iimveliso, izisombululo, njl.njl., pqeshisanxibelelana nathi kwi-intanethi.
I-Tianjin Sanon Steel Pipe Co., Ltd. ngumthengisi wempahla. Ifektri yethu yempahla ikwiSixeko saseCangzhou, kwiPhondo laseHebei. Imithombo yethu ephambili yeempahla yileimibhobho yebhoyila, kwaye izixhobo ezimeleyoI-ASTM A335 P5/P11/P91/P92,I-ASME SA-106/SA-106MGR.B,GB/T 3087-200810#/20#. Izinto ezimele imibhobho yepayipi zeziI-API 5L,I-API 5CT, izinto ezimele imibhobho yokuqhekeka kwepetroliyamI-GB/T 9948ziyi-15MoG/12CrMoVG. I-GB/T 6479-2013 imele izinto ezi-10#/20#, iityhubhu zokutshintsha ubushushu i-SA179/SA210/SA192, njl.njl., iityhubhu zoomatshini i-GB/T 8162 zimele izinto ezi-10#/20#/Q345/42CrMo, i-EN10210 imele izinto ezi-S355JOH/S355J2H, iityhubhu zesilinda yegesi i-GB1 8248, zimele izinto ezi-34CrMo4/30CrMo.
Kwimimandla yokuveliswa kwamandla obushushu kunye nokucubungula i-petrochemical, apho amaqondo obushushu aphezulu kunye noxinzelelo oluphezulu zizinto eziqhelekileyo, intsimbi ye-alloy ye-A335 P91 yinto ebalulekileyo. Isetyenziswa kakhulu kwimigca ephambili yomphunga kwaye iphinda ifudumale iindawo ezishushu ngenxa yamandla ayo aphezulu obushushu, ukumelana nokuqhekeka, kunye nokumelana ne-oxidation. Nangona kunjalo, umbuzo oqhelekileyo uphakama ngexesha lokuthengwa okanye ukusetyenziswa: Yintoni umahluko phakathi koHlobo 1 kunye noHlobo 2? Eli nqaku linika inkcazo eneenkcukacha.
Umahluko oPhambili: Inkqubo yoMveliso kunye neMicrstructure
Iimfuneko zokwakheka kweekhemikhaliA335 P91zichazwa ngumgangatho we-ASTM A335 ngokwawo. Uhlu lwe-Type 1 kunye ne-Type 2 aluveli kwi-ASTM A335, kodwa luvela komnye umgangatho obalulekileyo oxhasayo: i-ASTM A213 (Iinkcukacha eziQhelekileyo ze-Ferritic engenamthungo kunye ne-Austenitic Alloy-Steel yeBoiler, i-Superheater, kunye nee-Heat-Exchanger Tubes).
Umahluko oyintloko phakathi kwezi ntlobo zimbini ukwinkqubo yokugqibela yokwenziwa konyango lobushushu, nto leyo ekhokelela ngokuthe ngqo kumahluko kwisakhiwo sazo.
Idlula kwiNormalizing + Tempering. Umbhobho wenziwa ube ngokwesiqhelo ngaphezulu kobushushu obuvumelayo uze emva koko ube ngokwesimo sobushushu esiphezulu.
Isakhiwo seMicro: Sifikelela kwisakhiwo semartensite esithambileyo ngokupheleleyo. Le yeyona meko iqhelekileyo neqhelekileyo yentsimbi yeP91, enika indibaniselwano engcono kakhulu yeempawu zoomatshini.
Ingena kwi-Subcritical Annealing. Umbhobho uvalwa kubushushu obungaphantsi kwe-Ac1 (ubushushu obuphantsi obubalulekileyo).
Ulwakhiwo lweMicro: Ulwakhiwo lwayo luqulathe i-ferrite + ii-carbides ezifakwe kwi-annealed. Ayidluli kwinkqubo epheleleyo yokulungisa ukuze yenze i-martensite.
Kutheni Uhlobo lwesibini lukho?
Inkqubo yoHlobo lwesibini ikho ngokuyintloko ukuhlangabezana nokunyamezelana okuqinileyo kakhulu.
Inkqubo ye-Normalizing + Tempering inokubangela ukugqwetheka okuncinci okanye utshintsho kwi-oval yombhobho, nto leyo enokuba yingxaki kwizicelo ezineemfuno ezichanekileyo kakhulu.
•I-Annealing engaphantsi kwe-subcritical yenziwa kubushushu obuphantsi kwaye yinkqubo ethambileyo, igcina ngcono i-geometry echanekileyo kunye nobukhulu bombhobho emva kokusebenza okubandayo.
Umahluko ekusebenzeni kunye nesilumkiso esibalulekileyo
Umahluko obaluleke kakhulu ukwiimpawu zoomatshini, ingakumbi amandla obushushu obuphezulu.
•Uhlobo 1 (N&T): Inamandla apheleleyo aphezulu kunye namandla aphezulu okuhamba afunekayo ngokwemigangatho emiselweyo. Yimeko ekhethwayo nesemgangathweni yoyilo kunye nokusetyenziswa.
•Uhlobo 2 (olufakwe kwi-Anneal): Amandla ayo aphantsi kakhulu kunohlobo 1. Amandla ayo obushushu obuphezulu kunye neempawu zayo zokurhubuluza azikwazi ukuhlangabezana iimfuno zezinto ze-P91 ngokomgangatho we-ASTM A335.
Ngoko ke, izinto zohlobo lwesibini AKUFANELE zisetyenziswe ngokuthe ngqo kwinkonzo yobushushu obuphezulu/yoxinzelelo! Ukuba imibhobho ekwimeko engaphantsi kwe-annealed (Uhlobo lwe-2) ifunyenwe, umenzi okanye umsebenzisi wokugqibela KUFANELE enze unyango olupheleleyo lokulungisa nokupholisa ubushushu kuzo ngaphambi kokufakwa kokugqibela. Oku kuguqula isakhiwo sazo sibe yi-martensite epholileyo ngokupheleleyo (oko kukuthi, ukuyiguqula ibe yimeko yohlobo lwe-1), ngaloo ndlela kufezekiswa iimpawu zoomatshini ezifunekayo.
Itheyibhile yokuthelekisa yesishwankathelo
Ngamafutshane, i-A335 P91 Uhlobo 2 yimeko "engagqitywanga ngokupheleleyo", encama zonke iimpawu zamandla ukuze kube lula ukuyila kunye nobukhulu obuqinisekisiweyo. Kwelinye icala, i-Type 1 yimeko "yemveliso egqityiweyo", enazo zonke iimpawu ezifunekayo zokusingatha iimeko zobushushu obuphezulu kunye noxinzelelo oluphezulu.
Ngexesha lokuthenga nokuhlola, kubalulekile ukucacisa imeko oyifunayo kunye nokuqinisekisa ulwazi lonyango lobushushu kwizatifikethi zezinto. Ukuqinisekisa ukuba imibhobho efakiweyo inesakhiwo esifanelekileyo kunye neempawu kubalulekile ekuqinisekiseni ukusebenza okukhuselekileyo nokuthembekileyo kwezityalo zamandla kunye nezakhiwo zoshishino.
Ixesha leposi: Sep-18-2025
