I-Martensitic insimbi engagqwali ye-piston cylinder processing

2025-11-16

Okubalulekile

1.4112 (S46990, S44003, sus440b, X90CrMoV18)

ukwakheka kwamakhemikhali

C: 0.85～0.95%; Si: ≤1.0%; UMn: ≤1.0%; P: ≤0.04%; S: ≤0.015%; I-Cr: 17-19%; Mo: 0.9–1.3%; I-V: 0.07～0.12 %; Fe: ibhalansi

Izinto ezibonakalayo

Ukuminyana: 7.7g/cm³; amandla okubamba: 590MPa; amandla okukhiqiza: 245MPa; ubude: 15%; ubulukhuni HBW: 269; ukucisha kanye nobulukhuni bokuthambisa: 55HRC.

Ukuziphatha kwemishini

I-1.4112 iyinsimbi engagqwali ye-carbon martensitic ephezulu. Izici zayo zemishini ngokuyinhloko zihlanganisa amandla, ubulukhuni, ukuqina, njll. Ngenxa yokuqukethwe kwayo okuphezulu kwekhabhoni ne-chromium, lolu hlobo lwensimbi lunamandla aphezulu nobulukhuni futhi lungakwazi ukumelana nokucindezela okukhulu nokuguga. Ngesikhathi esifanayo, ngenxa yokuqina kwayo okuhle, lolu hlobo lwensimbi akulula ukulufaka futhi lungasetshenziswa ezindaweni eziyinkimbinkimbi. Imelana nokugqwala okuvela emkhathini opholile, umhwamuko wamanzi ahlanzekile, i-ammonia, imikhiqizo eminingi ye-petroleum nezinto eziphilayo, kanye nezindawo ezihlukahlukene ezine-asidi ebuthakathaka. Izinga lokushisa le-anneal liphansi kakhulu, futhi ubulukhuni ngemva kokucisha buphezulu. Ukuqina ngokuvamile kufinyelela ku-HRC56-58. Inokumelana nokugqwala okuhle (magnetic) kanye nokuqina okuqinile.

Izindawo zokufaka izicelo

Ngenxa yokuthi insimbi engagqwali engu-1.4112 inokumelana nokugqwala okuhle kakhulu kanye nezakhiwo zemishini, isetshenziswa kabanzi ku-petroleum, imboni yamakhemikhali, ubunjiniyela basolwandle, izimoto, ukudla neminye imikhakha. Ezimbonini ze-petroleum namakhemikhali, ngenxa yokumelana nokugqwala okuhle kakhulu, isetshenziselwa ukwenza ama-reactors, amapayipi nezinye izinto zokusebenza. Emkhakheni wobunjiniyela basolwandle, isetshenziselwa ukwenza izingxenye ezibalulekile zemikhumbi namapulatifomu asogwini. Emkhakheni wezimoto, isetshenziselwa ukwenza izingxenye ezifana nesistimu yokukhipha umoya kanye nezinsimbi. Emkhakheni wokudla, isetshenziselwa ukukhiqiza imishini yasekhishini kanye nemishini yokucubungula ukudla ngenxa yezindawo zayo ezinhle zokuhlanzeka.

Ukusebenza kwenqubo

Izakhiwo zenqubo ye-1.4112 insimbi engagqwali ikakhulukazi ihlanganisa ukushisela, ukwelashwa kokushisa nokucubungula izakhiwo. Lolu hlobo lwensimbi lunomsebenzi omuhle we-welding futhi lungafakwa nge-weld ngokusebenzisa izindlela ezihlukahlukene zokushisela. Ukwelashwa kokushisa kungathuthukisa izici zayo zemishini kanye nokumelana nokugqwala, kodwa ukunakekelwa kufanele kuthathwe ukuze kuvinjelwe ukuqhekeka noma ukuguqulwa okubangelwa ukushisa ngokweqile noma ukupholisa ngokweqile. Inokusebenza okuhle kokucubungula futhi ingasetshenziselwa ukujika, ukugaya, ukubhola, ukucofa kanye neminye imisebenzi yokucubungula. Ububi bayo ukuthi iyanamathela futhi ishisa ngokushesha, kodwa kulula ukuyisanta kunanoma iyiphi insimbi ye-carbon futhi kulula kakhulu ukuyisika ngesaha lesandla.

Izidingo zokucubungula izingxenye

I-Martensitic insimbi engagqwali ye-piston cylinder processing1

Ukunemba okuphezulu kokucubungula kungu-0.03mm, ukushelela okuphezulu kakhulu yi-Rz1um, futhi ukugxila kwazo zonke izindawo eziyindilinga zangaphandle kungaphakathi kuka-0.03mm.

Iyacubungula

Iyasakaza: usebenzisa i-wax yokushisa ephakathi nokulahlekelwa ukunemba kwe-wax.

I-Martensitic insimbi engagqwali ye-piston cylinder processing2

I-Martensitic insimbi engagqwali ye-piston cylinder processing3

I-Martensitic insimbi engagqwali ye-piston cylinder processing4

Ukwenza imishini: I-lathe ibamba umkhawulo owodwa we-claw clamp, isebenzisana nohlaka olumaphakathi, icubungula indilinga yangaphandle njengereferensi enembayo, bese icubungula imbobo engaphakathi, yenza ukuphenduka okungalungile nokujika kahle ukuze kucutshungulwe indawo yangaphakathi nangaphandle, futhi iqedele ukuphendula imibuthano yangaphandle nokuphela kobuso bazo zombili iziphetho.

I-Martensitic insimbi engagqwali ye-piston cylinder processing5

I-Martensitic insimbi engagqwali ye-piston cylinder processing6

Inqubo enemininingwane yomshini

I-Martensitic steel stainless cylinder cylinder processing111 (7)

1.Bamba imbobo engaphakathi emaceleni amabili. I-Rough Machining izinhlangothi ezimbili (Usayizi10, 15,16,20,27,28,30,35,36,37,38) kanye nendawo yonke engaphandle;

I-Martensitic steel stainless cylinder cylinder processing111 (1)

2.Bamba ohlangothini lwesobunxele, bese ubamba indawo ye-OD. Ukucupha ohlangothini lwesokudla kanye nezimbobo zangaphakathi. Usayizi womshini onamandla NO.27---45. Qedela usayizi womshini NO.72;

I-Martensitic steel stainless cylinder cylinder processing111 (2)

3.Bamba ohlangothini lwesokudla, bese ubamba indawo ye-OD, Ukwenza imishini elukhuni ohlangothini lwesobunxele, Usayizi womshini omangelengele NO.9,10,11,12,13,14,15,16,20,21kanye no-57—64;

I-Martensitic steel stainless cylinder cylinder processing111 (3)

4.Bamba ngaphakathi kwembobo ukusuka ohlangothini lwesokudla,Kuyisisekelo A. Bamba ingxenye ukusuka emgodini oseceleni kwesobunxele. Yenza imishini yokugcina nhlangothi zombili. Usayizi womshini NO.9, 10-16,20,21. Futhi 23-45;

I-Martensitic steel stainless cylinder cylinder processing111 (4)

5.CNC machining izimbobo, intambo nhlangothi zombili;

6.Machining Size NO. 2,4,6,8. 46—56.

Ukugaya nokupholisha: gcina u-0.05mm ukuze uthole imvume yokucubungula igrinder, ukugaya kwangaphakathi + ukucija.

Ukwelashwa kokushisa:

I-Annealing, ukupholisa kancane ku-800~920℃; ukucisha, ukupholisa uwoyela ku-1000 ~ 1050 ℃; ukushisa, 200 ~ 300 ℃; 96h ukucisha nokwelapha ukushisa ukushisa.

Mumbiko we-aterial