30CrMo aloyi zitsulo chitoliro ali mpweya zili 0.26 ~ 0.34, pakachitsulo zili 0.17 ~ 0.37, manganese zili 0.40 ~ 0.70, molybdenum zili 0.15 ~ 0.25, chromium zili 0.80 ~ 1.10.
Muyezo waukulu wa machubu opopera apakati ndi otsika: machubu achitsulo a GB3087-1999 opanda machubu a ma boilers otsika komanso apakatikati.
Kutentha kwakukulu komwe kumayikidwa mwachindunji kukwiriridwa kutchinjiriza chitoliro ndi mtundu wa chitoliro chokhazikika chokhazikika chokhazikika ndi ntchito yabwino yotchinjiriza, chitetezo ndi kudalirika komanso mtengo wotsika wa polojekiti.
Chitoliro chachitsulo chili ndi dzenje ndipo kutalika kwake ndi kokulirapo kuposa m'mimba mwake kapena kuzungulira kwachitsulo. Malingana ndi mawonekedwe a gawoli, amagawidwa kukhala mipope yachitsulo yozungulira, yozungulira, yamakona anayi ndi yapadera; Malinga ndi nkhaniyo, lagawidwa mu carbon structural zitsulo chitoliro, otsika aloyi structural zitsulo chitoliro, aloyi zitsulo chitoliro ndi gulu zitsulo chitoliro.
Chitsulo chosapanga dzimbiri lalikulu chubu ndi mtundu wa dzenje lalitali chitsulo. Chifukwa gawoli ndi lalikulu, limatchedwa square chubu. Mapaipi ambiri amagwiritsidwa ntchito kunyamula madzi, monga mafuta, gasi, madzi, gasi, nthunzi, etc.
Mu mndandanda wopanda chitoliro wachitsulo, pali chinthu chotchedwa Q345B chopanda chitsulo chachitsulo, chomwe ndi cha mndandanda wa alloy otsika. Pakati pa zipangizo zochepa za alloy, nkhaniyi ndi yofala kwambiri. Q345B chitoliro chopanda chitsulo chomwe chimatchedwa 16Mn chitoliro chopanda chitsulo.
Maiko akuluakulu omwe amatumiza kunja kwa machubu a boiler ndi Japan ndi Germany. Zomwe zimatumizidwa kawirikawiri ndi 15914.2mm; 2734.0mm; 219.110.0mm; 41975 mm; 406.460mm, etc. Zochepa zochepa ndi 31.84.5mm, ndipo kutalika kwake ndi 5 ~ 8m.
Zomwe zimatentha kwambiri pakutentha kwamphamvu kwa chubu chowala bwino nthawi zambiri zimatengedwa kuti ndi chifukwa cha tsankho la zinthu zonyansa monga phosphorous, malata, antimoni ndi arsenic pamalire ambewu ya austenite, zomwe zimapangitsa kuti malire a tirigu awonongeke.
16Mn ndi chitsulo chochepa cha alloy champhamvu kwambiri: mpweya wa carbon ndi 0.1% - 0.25%, ndipo zinthu zazikulu za alloy manganese, silicon, vanadium, niobium ndi titaniyamu zimawonjezeredwa; Zonse za alloy zake ndizochepera 3%.
(1) High khalidwe mpweya structural zitsulo makalasi monga 20g, 20mng ndi 25mng.
(2) Aloyi structural zitsulo makalasi: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, etc.
Inner epoxy kunja polyethylene anticorrosive zitsulo chitoliro ndi mtundu watsopano wa zitsulo pulasitiki gulu chitoliro. Amapangidwa ndi chitsulo chapaipi gawo lapansi, zokutira zamkati za epoxy resin ndi zokutira zakunja za polyethylene.
Seamless steel chubu ndi chingwe chachitali chachitsulo chokhala ndi gawo lobowo ndipo palibe cholumikizira mozungulira. Chitoliro chachitsulo chosakanizika chili ndi gawo lopanda kanthu ndipo chitha kugwiritsidwa ntchito ngati mapaipi otumizira madzimadzi, monga mapaipi otumizira mafuta, gasi, gasi, madzi ndi zinthu zina zolimba. Poyerekeza ndi zitsulo zolimba monga zitsulo zozungulira, chitoliro chachitsulo chosasunthika chimakhala ndi mphamvu yofanana ndi yokhazikika komanso yopepuka komanso yopepuka. Ndi chuma gawo zitsulo.