Umbhobho wentsimbi ongenamthungo wolwakhiwo (I-GB/T8162-2008) isetyenziselwa isakhiwo esiqhelekileyo kunye nesakhiwo somatshini wepayipi yensimbi engenamthungo.

Isetyenziselwa ukwenza iityhubhu zentsimbi ezingenamthungo kwimibhobho, iinqanawa, izixhobo, izixhobo kunye nezakhiwo zoomatshini

Ukwakhiwa: isakhiwo seholo, i-sea trestle, isakhiwo sesikhululo seenqwelomoya, idokhi, isakhelo socango lokhuseleko, ucango lwegaraji, iingcango zentsimbi eziqinisiweyo kunye neWindows, udonga lwangaphakathi lolwahlulo, ulwakhiwo lwebhulorho yentambo kunye noonogada bendlela, iintsimbi, umhombiso, indawo yokuhlala, imibhobho yokuhombisa.

Amalungu e-Auto: ukuveliswa kweemoto kunye neebhasi, izixhobo zokuthutha

Ezolimo: Izixhobo zezolimo

Umzi-mveliso: oomatshini, inkxaso yeSolar, indawo yeoli ekude nonxweme, izixhobo zemigodi, oomatshini kunye nezixhobo zombane, ubunjineli, imigodi, ubunzima kunye nezibonelelo, ubunjineli benkqubo, ukusetyenzwa kwezinto, iindawo zoomatshini.

Ezothutho: iintsimbi zabahamba ngeenyawo, iintsimbi zokugada, izakhiwo zesikwere, iimpawu, izixhobo zendlela, iingcingo

Ukugcinwa kwamalungiselelo: iishelufu zevenkile enkulu, ifenitshala, izixhobo zesikolo

Ibakala eliphambili lombhobho wensimbi

Q345, 15CrMo, 12Cr1MoV, A53A, A53B, SA53A, SA53B

Ubungakanani betyhubhu yentsimbi engenamthungo kunye nokutenxa okuvumelekileyo

Ityhubhu yentsimbi yeCarbon (GB/8162-2008)

Olu hlobo lombhobho wentsimbi yesakhiwo lunyibilika ngokubanzi ngokuguquguquka okanye kwiziko elivulekileyo, eyona nto inkulu ekrwada yintsimbi etyhidiweyo kunye nesinyithi esilahlwayo, umxholo wesulfure kunye ne-phosphorus kwintsimbi uphezulu kunomgangatho ophezulu wekhabhoni yentsimbi yombhobho, sulphur ngokubanzi ≤0.050 %, phosphorus ≤0.045%. Umxholo wezinye izinto ezixutywayo, ezifana ne-chromium, i-nickel kunye nobhedu, eziziswa kwintsimbi ngezinto eziluhlaza ngokuqhelekileyo azikho ngaphezu kwe-0.30%. Ngokweemfuno zokubunjwa kunye nokusebenza, ibakala lolu hlobo lombhobho wensimbi yesakhiwo luboniswa yintsimbi ye-Q195, Q215A, B, Q235A, B, C, D, Q255A, B, Q275 njalo njalo.

Qaphela: “Q” yi-alfabhethi yesiTshayina yefonetiki yesivuno “qu”, ilandelwa bubuncinane benqaku lesivuno (σ S) ixabiso lebakala, lilandelwa ngumqondiso ngokwezinto zokungacoceki (isulphur, phosphorus) umxholo ukusuka phezulu ukuya phantsi. kunye notshintsho kwi-carbon kunye ne-manganese element, ezihlelwa ngokwamabakala amane A, B, C, D.

Olu hlobo lwemveliso yombhobho wentsimbi yesakhiwo yeyona inkulu, ukusetyenziswa kubanzi kakhulu, kuqengqeleke ngakumbi kwipleyiti, iprofayili (ejikelezileyo, isikwere, isicaba, umsebenzi, umsele, iAngle, njl. njl.) kunye neprofayili kunye nombhobho wentsimbi wokuvelisa. Isetyenziswa kakhulu kwiworkshop, ibhulorho, iinqanawa kunye nezinye izakhiwo zokwakha kunye nemibhobho yothutho lwamanzi ngokubanzi. Olu hlobo lwentsimbi lusetyenziswa ngokubanzi ngokuthe ngqo ngaphandle konyango lobushushu.

Umbhobho wentsimbi wolwakhiwo olusezantsi amandla aphezulu (I-GB/T8162-2008)

Ukongeza kwisixa esithile se-silicon okanye i-manganese, iipayipi zensimbi ziqulethe ezinye izinto ezifanelekileyo kwizibonelelo zaseChina. Njenge-vanadium (V), i-niobium (Nb), i-titanium (Ti), i-aluminium (Al), i-molybdenum (Mo), i-nitrogen (N), kunye nomhlaba onqabileyo (RE) ulandelelanisa izinto. Ngokokwakheka kweekhemikhali kunye neemfuno zokusebenza, ibakala layo limelwe yiQ295A, B, Q345A, B, C, D, E, Q390A, B, C, D, E, Q420A, B, C, D, E, Q460C, D , E kunye namanye amabakala ensimbi, kunye nentsingiselo yawo iyafana nombhobho we-carbon structural steel.

Ukongeza kwinqanaba le-A kunye ne-B yensimbi, i-Grade C, i-GRADE D kunye ne-Grade E yensimbi kufuneka iqulethe ubuncinane enye yezinto ezicocekileyo zokulandelela okusanhlamvu ezifana ne-V, Nb, Ti kunye ne-Al. Ukuze kuphuculwe ukusebenza kwentsimbi, i-A, i-B yensimbi yezinga nayo inokongezwa kwenye yazo. Ukongezelela, umxholo wezinto eziseleyo ze-Cr, i-Ni kunye ne-Cu zingaphantsi kwe-0.30%. I-Q345A, B, C, D, E ngamabakala amele olu hlobo lwensimbi, phakathi kwayo i-A, i-B yensimbi ye-grade idla ngokuba yi-16Mn; Ngaphezulu kwento enye yomkhondo kufuneka yongezwe kwibakala C nangaphezulu kombhobho wentsimbi, kunye nepropathi enye yefuthe lobushushu obuphantsi kufuneka yongezwe kwiimpawu zayo zomatshini.

Umlinganiselo wolu hlobo lombhobho wensimbi yesakhiwo kwintsimbi ye-carbon structural. Ineenzuzo zamandla aphezulu, ukusebenza kakuhle okubanzi, ubomi benkonzo ende, uluhlu olubanzi lwezicelo kunye noqoqosho oluthelekisayo. Isetyenziswa ngokubanzi kwiiBridges, iinqanawa, iibhoyili, izithuthi kunye nezakhiwo ezibalulekileyo zokwakha.