I-30CrMo ingxubevange yombhobho yentsimbi inomxholo wekhabhoni we-0.26 ~ 0.34, umxholo wesilicon ye-0.17 ~ 0.37, umxholo we-manganese we-0.40 ~ 0.70, umxholo we-molybdenum we-0.15 ~ 0.25, umxholo we-chromium we-0.80 ~ 1.10.
Umgangatho olawulayo kwiityhubhu zebhoyila eziphantsi kunye noxinzelelo oluphakathi: I-GB3087-1999 iityhubhu zentsimbi ezingenamthungo kwiibhoyili eziphantsi kunye neziphakathi.
Ubushushu obuphezulu obunyulwe ngokuthe ngqo umbhobho wokugquma luhlobo lombhobho wokugquma owangcwatywa ngokuthe ngqo osebenza kakuhle, ukhuseleko nokuthembeka kunye neendleko zeprojekthi eziphantsi.
Umbhobho wensimbi unecandelo elingenanto kwaye ubude bawo bukhulu kakhulu kunobubanzi okanye umjikelezo wentsimbi. Ngokwemilo yecandelo, ihlukaniswe kwiibhobho zetsimbi ezijikelezayo, zesikwere, ezixande kunye nezikhethekileyo; Ngokwemathiriyeli, yahlulwe kumbhobho wensimbi ye-carbon structural, umbhobho wensimbi ophantsi we-alloy, umbhobho wensimbi ye-alloy kunye nombhobho wensimbi odibeneyo.
Insimbi engenasici ityhubhu yesikwere luhlobo lwentsimbi ende enomngxuma. Ngenxa yokuba icandelo lisisikwere, libizwa ngokuba ityhubhu yesikwere. Inani elikhulu lemibhobho lisetyenziselwa ukuthutha ulwelo, njengeoli, igesi yendalo, amanzi, igesi, umphunga, njl.
Kuluhlu lwemibhobho yensimbi engenamthungo, kukho into ebizwa ngokuba yi-Q345B ipayipi yensimbi engenamthungo, eyeyechungechunge lwe-alloy ephantsi. Phakathi kwezinto eziphantsi kwe-alloy, le nto ixhaphake kakhulu. Q345B umbhobho wentsimbi ongenamthungo wawubizwa ngokuba yi-16Mn umbhobho wentsimbi ongenamthungo.
Amazwe aphambili angenisa iityhubhu zebhoyila yiJapan kunye neJamani. Inkcazo yeemveliso ezithunyelwa rhoqo yi-15914.2mm; 2734.0mm; 219.110.0mm; 41975mm; 406.460mm, njl. Ubuncinci bokucaciswa yi-31.84.5mm, kwaye ubude ngokuqhelekileyo yi-5 ~ 8m.
Undoqo wobushushu obuphezulu bobushushu bobushushu obuchanekileyo betyhubhu eqaqambileyo ngokuqhelekileyo ithathwa njengesiphumo sokwahlulwa kwezinto ezingacocekanga ezifana ne-phosphorus, i-tin, i-antimony kunye ne-arsenic kumda wokuqala we-austenite grain , okukhokelela kwi-embrittlement yomda weenkozo.
I-16Mn i-alloy low-alloy high-high-force structure steel: umxholo wekhabhoni ngu-0.1% - 0.25%, kunye nezinto eziphambili ze-alloy manganese, i-silicon, i-vanadium, i-niobium kunye ne-titanium yongezwa; Umxholo wayo opheleleyo we-alloy ungaphantsi kwe-3%.
(1) Umgangatho ophezulu we-carbon structural steel grade ziquka i-20g, i-20mng kunye ne-25mng.
(2) I-alloy structural steel grade grade: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, njl.
I-epoxy yangaphakathi yangaphandle ye-polyethylene umbhobho wensimbi wokuchasana luhlobo olutsha lwentsimbi yentsimbi yombhobho oyintlanganisela. Iqulethwe nge-substrate yombhobho wensimbi, i-epoxy resin yangaphakathi yokwaleka kunye ne-polyethylene yangaphandle yokugqoka.
Ityhubhu yentsimbi engenamthungo ngumcu omde wentsimbi kunye necandelo elingenanto kwaye akukho hlanganiso ejikelezileyo. Umbhobho wentsimbi ongenamthungo unecandelo elimgongxo kwaye unokusetyenziswa njengombhobho wokuhambisa ulwelo, njengombhobho wokuhambisa ioyile, igesi yendalo, irhasi, amanzi kunye nezinye izinto eziqinileyo. Xa kuthelekiswa nentsimbi eqinileyo efana nentsimbi engqukuva, umbhobho wentsimbi ongenamthungo unamandla afanayo aguquguqukayo kunye ne-torsional kunye nobunzima obulula. Yintsimbi yecandelo loqoqosho.