Okuthiwai-alloy steel pipeukwengeza izakhi ezithile ze-alloy ngesisekelo se-carbon steel, njenge-Si, Mn, W, V, Ti, Cr, Ni, Mo, njll., engathuthukisa amandla, ukuqina, ukuqina, ukushisela, njll. 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 ayimakwa. 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 ezigingqayo 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, i-avareji yayo i-Wc=0.9%, kanti i-WCr evamile ingu-<1.5%.Kodwa-ke, insimbi yethuluzi lesivinini esikhulu ihlukile, futhi ingxenye yayo ye-carbon mass ayimakwa kungakhathaliseki ukuthi iyimalini.Ngenxa yokuthi insimbi yamathuluzi engxubevange kanye nensimbi yamathuluzi esivinini esiphezulu kuyinsimbi yezinga eliphezulu, asikho isidingo sokumaka "i-gradeA".
Insimbi engagqwali nensimbi engashi
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 ngo-"00" kanye "0" phambi komkhiqizo,njengensimbi engu-00Cr29Ni,1701Cr, njll
Isikhathi sokuthumela: Mar-13-2023