Okuthiwai-alloy steel pipeukwengeza izakhi ze-alloy ngesisekelo sensimbi ye-carbon, njenge-Si, Mn, W, V, Ti, Cr, Ni, Mo, njll., engathuthukisa amandla, ukuqina, ukuqina, ukushisela, njll. insimbi.ukusebenza.Insimbi ye-alloy ingahlukaniswa ngokusho kokuqukethwe kwezakhi ze-alloy, futhi ekukhiqizeni izimboni nokuphila, insimbi ye-alloy izosetshenziswa ezimbonini ezithile, futhi kuvamile ukuhlukanisa ngokuvumelana nenhloso.
Ukuhlukaniswa ngokuya ngokuqukethwe kwezakhi ze-alloying
Insimbi ephansi ye-alloy: inani eliphelele le-alloy lingaphansi kuka-5%;
Insimbi ye-alloy ephakathi: inani eliphelele le-alloy yi-5 ~ 10%;
Insimbi ephezulu ye-alloy: inani eliphelele le-alloy lingaphezulu kuka-10%.
Ukuhlukaniswa ngenhloso
I-alloy structural steel: insimbi ephansi ye-alloy structural (eyaziwa nangokuthi insimbi evamile ephansi ye-alloy);ingxubevange carburizing steel, ingxubevange quenched futhi tempered steel, ingxubevange spring steel;ibhola eliveza insimbi
Insimbi yensimbi ye-alloy: insimbi yensimbi yokusika ingxubevange (kuhlanganise nensimbi ephansi yensimbi yokusika ingxubevange, insimbi enesivinini esikhulu);ingxubevange die steel (kuhlanganise abandayo die steel, hot die steel);insimbi yamathuluzi okulinganisa
Insimbi yokusebenza okukhethekile: insimbi engagqwali, insimbi engangeni ekushiseni, insimbi engagqoki, njll.
Inombolo yensimbi ye-alloy
Ingxubevange ephansi amandla aphezulu ensimbi yesakhiwo
Igama layo lomkhiqizo lihlelwa ngokulandelana ngezingxenye ezintathu: uhlamvu lwe-pinyin lwesiShayina (Q) olumelela iphuzu lokuvunwa, inani lomkhawulo wesivuno, kanye nophawu lwebanga lekhwalithi (A, B, C, D, E).Isibonelo, i-Q390A isho insimbi yesakhiwo esinengxubevange ephezulu enamandla amakhulu angu-σs=390N/mm2 kanye nebanga lekhwalithi A.
Ingxubevange yensimbi yesakhiwo
Igama layo lomkhiqizo liqukethe izingxenye ezintathu: "amadijithi amabili, izimpawu zesici eziyishumi + izinombolo".Amadijithi amabili okuqala amelela izikhathi ezingu-10,000 isilinganiso sengxenye ye-carbon mass ensimbi, uphawu lwe-elementi lubonisa izakhi ze-alloying eziqukethwe ensimbi, futhi izinombolo ezingemuva kophawu lwesici zibonisa izikhathi eziyi-100 zesilinganiso sengxenye ye-elementi.Lapho isilinganiso sengxenye yesisindo sezingxenye zengxubevange singaphansi kuka-1.5%, ngokuvamile kuboniswa izakhi kuphela kodwa hhayi inani lezinombolo;lapho isilinganiso sengxenye yesisindo singu-≥1.5%, ≥2.5%, ≥3.5%, ..., 2 no-3 amakwe ngokuhambisanayo ngemuva kwezakhi ze-alloying , 4, ...Isibonelo, i-40Cr ine-avareji ye-carbon mass fraction Wc=0.4%, kanye ne-avareji yengxenyana ye-chromium mass WCr<1.5%.Uma kuyinsimbi yezinga eliphezulu, engeza u-"A" ekupheleni kwebanga.Isibonelo, insimbi engu-38CrMoAlA ingeyensimbi yesakhiwo se-alloy yezinga eliphezulu.
Insimbi eginqikayo
Faka u-"G" (uhlamvu lokuqala lwe-pinyin yesiShayina yegama elithi "roll") phambi kwegama lomkhiqizo, futhi inombolo engemuva kwayo ikhombisa izikhathi eziyinkulungwane ingxenye enkulu ye-chromium, futhi ingxenye enkulu yekhabhoni ayimakwanga. .Isibonelo, insimbi ye-GCr15 iyinsimbi eginqikayo enengxenye enkulu ye-chromium WCr=1.5%.Uma insimbi ene-chromium iqukethe izakhi ze-alloying ngaphandle kwe-chromium, indlela yokusho yalezi zakhi iyafana naleyo yensimbi evamile yesakhiwo se-alloy.Izinsimbi eziginqikayo ziyizinsimbi zekhwalithi ephezulu, kodwa "A" ayengezwa ngemva kwebanga.
Insimbi yensimbi ye-alloy
Umehluko phakathi kwendlela yokufaka izinombolo yalolu hlobo lwensimbi kanye nensimbi yesakhiwo se-alloy ukuthi uma i-Wc<1%, idijithi eyodwa isetshenziselwa ukukhombisa izikhathi eziyinkulungwane zengxenye enkulu yekhabhoni;lapho ingxenye enkulu yekhabhoni ingu-≥1%, ayimakwanga .Isibonelo, insimbi ye-Cr12MoV inesilinganiso sengxenye ye-carbon mass ye-Wc=1.45% ~ 1.70%, ngakho-ke ayimakwa; isilinganiso sengxenye yesisindo se-Cr singu-12%, futhi izingxenyana ezinkulu ze-Mo no-V zombili zingaphansi kuka-1.5% .Esinye isibonelo insimbi ye-9SiCr, isilinganiso sayo se-Wc=0.9%, kanti i-WCr emaphakathi ingu-<1.5%.Nokho, insimbi yethuluzi lesivinini esikhulu ihlukile, futhi ingxenye yayo ye-carbon mass ayimakwa kungakhathaliseki ukuthi ingakanani.Ngoba insimbi yensimbi yensimbi nensimbi yamathuluzi esivinini esikhulu kuyinsimbi yekhwalithi ephezulu, asikho isidingo sokumaka "A" ngemuva kwebanga layo.
Insimbi engagqwali nensimbi ekwazi ukumelana nokushisa
Inombolo ephambi kwalolu hlobo lwezinga lensimbi ikhombisa izikhathi eziyinkulungwane kunengxenye ye-carbon mass.Isibonelo, insimbi engu-3Crl3 isho ukuthi ingxenye enkulu ye-mass fraction Wc=0.3%, kanye ne-average mass fraction WCr =13%.Lapho ingxenye enkulu ye-carbon Wc ≤ 0.03% kanye ne-Wc ≤ 0.08%, iboniswa ngokuthi "00" futhi "0" phambi komkhiqizo, njengensimbi engu-00Cr17Ni14Mo2,0Cr19Ni9, njll.
Isikhathi sokuthumela: Mar-13-2023