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.
Imibhobho yentsimbi ye-alloy engenamthungo eyenziwe ngeI-ASTM A335 P11kwayeI-ASTM A335 P22zisetyenziswa kakhulu kumashishini e-petrochemical kunye nokuvelisa umbane kwizixhobo ezishushu kakhulu, ezimelana noxinzelelo. Nangona zombini ziyimibhobho yentsimbi ye-chromium-molybdenum alloy echazwe phantsi komgangatho we-ASTM A335, zibonisa umahluko omkhulu kwiimeko ezithile zokusebenza kunye nezicelo. Ukuqonda la mahluko kubalulekile kuyilo lobunjineli, ukukhethwa kwezinto, kunye nolawulo lomgangatho wokuthengwa.
Ukwakheka kweekhemikhali yeyona nto iphambili eyahlula ezi zinto zimbini.Umbhobho we-A335 P11Ulwakhiwo lweekhemikhali luquka malunga ne-1.00 ukuya kwi-1.50 yeenxalenye ze-chromium kunye ne-0.44 ukuya kwi-0.65 yeenxalenye ze-molybdenum. Kwelinye icala, i-ASTM A335 P22 iqulethe izinto eziphezulu zokudibanisa, kunye nomxholo we-chromium omalunga ne-1.90 ukuya kwi-2.60 yeenxalenye kunye nomxholo we-molybdenum oqala kwi-0.87 ukuya kwi-1.13 yeenxalenye. Lo mahluko wolwakhiwo ukhokelela ngokuthe ngqo kumahluko abalulekileyo ekusebenzeni kwazo kubushushu obuphezulu. Umxholo ophezulu we-chromium kunye ne-molybdenum we-P22 unika amandla aphezulu kubushushu obuphezulu, ukumelana ne-oxidation, kunye nokumelana nokuqhekeka.
Xa kufikwa ekukhetheni izixhobo zokusetyenziswa kobunjineli, iimeko zokusetyenziswa kwezi zinto zimbini zahlukile kakhulu. I-P11 idla ngokusetyenziswa kwiindawo ezinobushushu obuphakathi kunye noxinzelelo kwaye ixhaphake kakhulu kwimibhobho yenkqubo kwizityalo zokucocisa ioyile, imibhobho ye-superheater enobushushu obuphantsi kwi-boilers zezityalo zamandla, kunye nezinye iinkqubo zokutshintsha ubushushu. Ubushushu bayo boyilo ngokubanzi bungaphantsi kwama-550°C. I-P22, kwelinye icala, yenzelwe iindawo ezinobushushu obuphezulu kunye noxinzelelo oluphezulu kwaye sisixhobo esikhethwayo kwi-superheater enobushushu obuphezulu kunye nemibhobho yokuphinda ifudumale kwi-boilers zezityalo zamandla, kunye nemibhobho yempendulo enobushushu obuphezulu kunye noxinzelelo oluphezulu kwishishini le-petrochemical. Igcina iipropati ezintle zoomatshini kunye nokumelana nokugqwala kumaqondo obushushu oyilo angama-580°C nangaphezulu.
Xa kuthengwa ezi zinto zimbini, kufuneka kuqwalaselwe ngokukodwa umahluko kwiimfuno zazo zobugcisa. Ngokuphathelele ukuphambuka kobukhulu bodonga, zombini zinamathela kuluhlu olufanayo lokunyamezela oluchazwe yiUmgangatho we-ASTM A335Xa kuthengwa, ababoneleli kufuneka bacelwe ukuba banike iingxelo zovavanyo ezineenkcukacha zobukhulu ukuqinisekisa ukuba ukufana kobukhulu bodonga kuyahlangabezana neemfuno zoxinzelelo lwemibhobho. Ngokuphathelele ulawulo lokwakheka kweekhemikhali, abasebenzi abathengayo kufuneka bahlolisise ngokungqongqo izatifikethi zezinto ukuqinisekisa ukuba umxholo wezinto eziphambili zokudibanisa ezifana ne-chromium kunye ne-molybdenum uyahlangabezana neemfuno ezisemgangathweni. Okubalulekileyo kukuba, imfuneko yomxholo we-molybdenum kwi-P22 iphezulu kakhulu kuneye-P11, nto leyo ebaluleke kakhulu ekuqinisekiseni ukusebenza kobushushu obuphezulu. Ngaphezu koko, xa kuthengwa, unyango olufanelekileyo lobushushu kufuneka lukhethwe ngokusekelwe kwindawo yokusetyenziswa. Ukulungelelanisa kunye nokunciphisa ubushushu ngokubanzi lolona khetho lufanelekileyo lokuqinisekisa ukusebenza kwezinto.
Nangona i-ASTM A335 P11 kunye ne-P22 ziyinxalenye yosapho olufanayo lwentsimbi ye-chromium-molybdenum alloy, i-P22 inika ukusebenza okuphezulu kakhulu kubushushu obuphezulu ngenxa yomxholo wayo ophezulu we-alloy, nto leyo eza neendleko eziphezulu zokuthenga. Izinto ezifana nobushushu bokusebenza, iiparameter zoxinzelelo, iimpawu zemidiya, kunye nohlahlo lwabiwo-mali lweendleko kufuneka ziqwalaselwe ngokupheleleyo ngexesha loyilo lobunjineli kunye nokukhethwa kwezinto. Ngexesha lenkqubo yokuthenga, iikhrayitheriya eziphambili zomgangatho ezifana nokwakheka kweekhemikhali, iipropati zoomatshini, kunye nokunyamezelana kobukhulu kufuneka zilawulwe ngokungqongqo ukuqinisekisa ukuba izinto ziyahlangabezana neemfuno zoyilo kunye nemigangatho yokhuseleko. Ukukhethwa kwezinto ezifanelekileyo kunye nolawulo oluqinileyo lomgangatho wokuthenga kubalulekile ukuqinisekisa ukusebenza ngokukhuselekileyo kwexesha elide kweenkqubo zepayipi zobushushu obuphezulu.
Ixesha lokuthumela: Agasti-22-2025
