30CrMo umuyoboro wibyuma ufite karubone irimo 0.26 ~ 0.34, silikoni ya 0.17 ~ 0.37, manganese ya 0.40 ~ 0.70, molybdenum ya 0.15 ~ 0.25, chromium ifite 0.80 ~ 1.10.
Igipimo ngenderwaho kubituba byiciriritse kandi bito: GB3087-1999 ibyuma bitagira ibyuma kubitereko bito kandi bito.
Ubushyuhe bwo hejuru buteganijwe gushyingurwa mu buryo butaziguye ni ubwoko bwumuyoboro ushyinguwe wateguwe neza hamwe nibikorwa byiza byokwirinda, umutekano no kwizerwa hamwe nigiciro gito cyumushinga.
Umuyoboro wibyuma ufite igice cyubusa kandi uburebure bwacyo ni bunini cyane kuruta diameter cyangwa umuzenguruko wibyuma. Ukurikije imiterere yicyiciro, igabanijwemo uruziga, kare, urukiramende kandi rufite imiyoboro idasanzwe; Ukurikije ibikoresho, igabanyijemo umuyoboro wububiko bwa karubone, umuyoboro muto wubatswe wibyuma, umuyoboro wibyuma hamwe numuyoboro wibyuma.
Icyuma kitagira umuyonga ni ubwoko bwicyuma kirekire. Kuberako igice ari kare, cyitwa kare tube. Umubare munini w'imiyoboro ikoreshwa mu gutwara amazi, nka peteroli, gaze karemano, amazi, gaze, amavuta, n'ibindi.
Mu ruhererekane rw'icyuma rudafite icyerekezo, hari ibikoresho byitwa Q345B umuyoboro w'icyuma utagira ikizinga, ukaba uri mu ruhererekane rwo hasi. Mubikoresho bito bivanze, ibi bikoresho nibisanzwe. Q345B umuyoboro wicyuma udafite icyuma wasangaga witwa 16Mn umuyoboro wicyuma udafite kashe.
Ibihugu nyamukuru bitumiza mu mahanga ibyombo ni Ubuyapani n'Ubudage. Ibisobanuro byibicuruzwa bitumizwa mu mahanga ni 15914.2mm; 2734.0mm; 219.110.0mm; 41975mm; 406.460mm, nibindi nibisobanuro byibuze ni 31.84.5mm, kandi uburebure muri rusange ni 5 ~ 8m.
Intangiriro yubushyuhe bwo hejuru ubushyuhe bukabije bwumucyo wuzuye usanzwe ufatwa nkigisubizo cyo gutandukanya ibintu byanduye nka fosifore, amabati, antimoni na arsenic kumupaka wambere wa austenite, bikavamo imbibi zimbuto.
16Mn ni icyuma gike cyane-gifite imbaraga zubaka zubaka: ibirimo karubone ni 0.1% - 0,25%, hamwe nibintu nyamukuru bivanga manganese, silikoni, vanadium, niobium na titanium; Ibirimo byose bivanze ni munsi ya 3%.
(1) Ibyiciro byiza bya karubone byubatswe mubyiciro birimo 20g, 20mng na 25mng.
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Imbere ya epoxy yo hanze polyethylene anticorrosive umuyoboro wicyuma ni ubwoko bushya bwibyuma bya pulasitiki. Igizwe nicyuma cya pipe substrate, epoxy resin imbere yimbere hamwe na polyethylene yo hanze.
Umuyoboro udafite icyuma ni umurongo muremure wibyuma bifite igice cyuzuye kandi ntaho bihuriye. Umuyoboro w'icyuma udafite icyuma ufite igice cyuzuye kandi urashobora gukoreshwa nk'umuyoboro mugutanga amazi, nk'umuyoboro wo kugeza peteroli, gaze gasanzwe, gaze, amazi hamwe nibikoresho bikomeye. Ugereranije nicyuma gikomeye nkicyuma kizengurutse, umuyoboro wicyuma udafite icyerekezo gifite imbaraga zingana na torsional hamwe nuburemere bworoshye. Nicyuma cyubukungu.