Imbiza Ye-Slag ye-LF/VD | Isitsha Se-Slag Esikhethekile Sesithando Sensimbi Sesibili – Isithombe Esivelele Sensimbi Ye-Womic

Imbiza Ye-Slag ye-LF/VD | Isitsha Se-Slag Esikhethekile Sesithando Se-Ladle Sensimbi Yesibili – Insimbi Yabesifazane

Incazelo emfushane:

Usayizi Webhodwe Le-Slag:Umthamo wamathani angu-5 - 40 (ufana nomthamo ojwayelekile we-slag we-LF), isisindo samathani angu-8 - 45, umthamo ongu-4 - 25 m³, ubukhulu obulungiselelwe ipulatifomu yokusebenza yesithando somlilo kanye nokufinyelela emnyango we-slag. I-Trunnion: umklamo ophansi one-offset ukuze usule i-ladle turret.

Izinto kanye namazinga:I-ZG270-500+ (S≤0.012%, P≤0.015%), GS-20Mn5V (ene-vanadium), i-ASTM A27 65-35 izinga eliphansi le-hydrogen. Ihambisana ne-ASTM A27, DIN 17182, EN 10293, ISO 3755. Ukwelashwa ngokushisa: Ukubhaka okucishiwe + okuthambile + okuphuma emanzini. Umphezulu: ngaphakathi kunephrofayili yerediyo ebushelelezi ukusiza ukugeleza kwe-slag yokwenziwa, ngaphandle kunengubo ephezulu yokuphuma komoya ukuze kuphole imisebe.

Inqubo Yokukhiqiza:I-integral yokukhipha eyodwa ngokunaka okukhethekile ukuqina kwegesi emisebenzini ye-VD. I-EAF + LF + VD + ukukhishwa kwegesi isikhathi eside (H < 1.5ppm). Ukulingisa uketshezi olushisayo lwe-CAE lokukhipha i-slag. I-100% NDT: Ivolumu ephelele ye-UT (i-trunnion yezinga 1, umzimba wezinga 2), i-MT, i-PT, kanye nokuhlolwa kokuvuza kwe-helium kwensizakalo ye-vacuum.

Ukusetshenziswa kwe-Slag Pot:Ukuphathwa kwe-slag yokwenziwa ye-ladle furnace (LF), ukuqoqwa kwe-slag yokususa igesi ye-VD/VOD, ukuthuthwa kwe-slag ye-ladle kusuka esiteshini sesibili se-metallurgy, ukuhluzwa kwensimbi ye-alloy, izitshalo zensimbi ezikhethekile (insimbi ethwala, insimbi yepayipi, insimbi yasentwasahlobo), ukubamba i-slag yensimbi engagqwali ye-AOD, ukuhlanganiswa kohlelo lokuthola i-slag.

Insimbi YaseWomicIhlinzeka ngezimbiza ze-slag ezilungiselelwe i-LF/VD ezinokuqukethwe kwe-hydrogen okuphansi kakhulu (≤1.5 ppm) ukuvimbela ukuqhekeka okubangelwa yi-hydrogen ngaphansi kwe-vacuum. I-radii yethu eguquguqukayo ebushelelezi isusa izindawo ezifile lapho i-slag yokwenziwa inganqwabelana khona. Imiklamo eyenziwe ngokwezifiso yanoma yiluphi uhlaka lwe-ladle furnace turret. Iqinisekiswe yi-ISO 9001, PED, NORSOK M-650. Cela isitifiketi sokuhambisana ne-vacuum.

Sithumelele i-imeyili Imininingwane Yomkhiqizo

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Ukubuka Konke Komkhiqizo – Izidingo Ezihlukile Zezimbiza Ze-LF/VD Slag

A Imbiza ye-slag ye-LF(isitsha se-slag sesithando sesithando) nomaImbiza ye-slag ye-VD(ibhakede le-vacuum deposting slag) izibamboi-slag yokwenziwa– hhayi i-slag enobudlova, eshisa kakhulu evela ku-EAF noma i-BOF, kodwa ingxube exutshwe ngokucophelela ye-lime, i-fluorspar, kanye ne-alloys eyenzelwe ukucwengisisa insimbi encibilikisiwe.

Yini eyenza izimbiza ze-slag ze-LF/VD zihluke?

1. Izinga lokushisa le-slag liphansi (~1,500°C vs 1,650°C ye-EAF), kodwa isikhathi sokubamba isikhathi eside kakhulu– ngezinye izikhathi imizuzu engama-60–90 ngokushisa ngakunye. Ibhodwe kumele limelane nokushisaukuguqulwa kokuhambaekushiseni okuphezulu okuqhubekayo.

2. I-slag yokwenziwa iyamanzi kakhulu uma incibilika kodwa iba namathela kakhulu njengoba iphola.Izindawo ezifile noma amakhona angaphakathi abukhali abangela ukwakheka kwama-slag okunciphisa amandla ngokuhamba kwesikhathi.

3. Ukususa igesi nge-vacuum (VD) kubeka isidingo esiyingqayizivele: imbiza ye-slag ingafakwa ngaphansi kwe-vacuum (0.5–1 torr) isikhathi esifushane. Noma yikuphi ukubhoboza okuncane endaweni yokukhipha kungaphuma igesi, okuholelaukwakheka kwama-bubble ensimbininoma – okubi nakakhulu –ukuqhunyiswa kwebhodweuma kukhona umgodi omkhulu.

4. Amabhodwe e-LF/VD avame ukuphathwa yi-turret efanayo yeladle ephakamisa iladle yensimbi.Lokhu kusho ukuthi imbiza kumele ibe lula futhi ibe ncane kunezimbiza ze-EAF/BOF ukuze ilingane nesikhala sengalo ye-turret kanye ne-geometry ye-crane hook.

5. I-chemistry ye-slag iyisisekelo (i-CaO/Al₂O₃ ephezulu), ehlasela imingcele yokusanhlamvu kwe-silicon ne-aluminium.Kudingeka ukunaka okukhethekile ezintweni ezingezona ezensimbi.

Izimbiza ze-slag ze-Womic Steel ze-LF/VD zenziwe nge-okuqukethwe kwe-hydrogen okuphansi kakhulu, imidwebo yangaphakathi ebushelelezi, futhiubukhulu obuncane bokunemba- yilokho kanye okudingwa yi-metallurgy yesibili.

Isitsha Se-Slag Esikhethekile Se-LFVD Slag Pot Ladle Furnace Sensimbi Yesibili – Insimbi Yabesifazane

Kungani Kufanele Ukhethe Insimbi Yomhlobiso Wezimbiza Ze-LF/VD Slag?

Isidingo	Isixazululo se-Womic
Okuqukethwe kwe-hydrogen ≤1.5 ppm	Ukususa igesi kathathu: i-VD ngemva kokuncibilika, i-VD ngemva kokucwengisisa, kanye nokususwa kwe-hydrogenation ngesikhathi sokwelashwa ngokushisa (amahora angu-48 ku-650°C).
Ukumelana nokucwila ku-1,500°C (2,730°F)	Okuqukethwe okuphezulu kwe-Mo (0.4–0.6%) kuma-grade ahlanganisiwe, kanye nokuqinisa isixazululo nge-vanadium.
Azikho izindawo ezifile ngama-slag	Iphrofayili yangaphakathi iqukethe kuphela ama-radii >50mm; sihlanganisa izindawo zokushintshana zomshini we-CNC ukuze kuqedwe ama-cusps.
Ukuhambisana kwe-vacuum	Ukuhlolwa kokuvuza kwe-UT + helium okungu-100% kuqinisekisa ukuthi akukho ukubhoboka okuxhumene. Isitifiketi ku-<1e-6 mbar·l/s.
Ilula kodwa inamandla	Ubukhulu bodonga obulungiselelwe yi-FEA (isilinganiso esingu-40–50mm vs 60–70mm samabhodwe e-EAF); isisindo sincishisiwe ngo-25% ngaphandle kokulahlekelwa amandla.
Ukukhishwa kwe-slag ebushelelezi	Ukugqoka okugcotshwe nge-ceramic (hhayi ukugqoka okujiyile okugcwele) + ukuqeda ubuso obucwebezelisiwe (Ra ≤ 3.2 μm).
Ukulingana kwe-Turret	Siskena izingalo zakho ze-ladle furnace turret nge-laser bese sihlinzeka ngemodeli ye-3D ukuqinisekisa ukuthi zivulekile ngaphambi kokukhipha.

Siphinde sinikezeukulinganiswa kokunamathela kwe-slag endaweni– sisebenzisa isisindo esilinganisiwe ebhodweni, sishise ku-1,200°C, bese silinganisa i-torque edingekayo ukuze siqede i-slag.

Imininingwane Yobuchwepheshe - Imbiza Ye-Slag Elungiselelwe i-LF/VD

Umthamo vs. Ireferensi Yosayizi Wesilayidi

Umthamo Wendebe Yensimbi (amathani)	Umthamo ojwayelekile we-LF Slag (amathani)	Umthamo Wembiza Onconywayo (amathani)	Isisindo sembiza (amathani)	I-Dia yangaphandle (mm)	Ukuphakama (mm)
60	4-6	6-8	9-12	1,200	900
80	6-9	10-12	14-18	1,350	1,050
100	8-12	12-15	18-22	1,500	1,150
120	10-15	15-20	22-28	1,600	1,250
150	12-18	20-25	28-34	1,700	1,350
180	15-22	25-30	34-40	1,800	1,450

Ubukhulu bembiza kumele buhambisane ne-ladle furnace turret - silungiselela ngokwemishini yakho.

Amabanga Ezinto Ezibalulekile Zesevisi ye-LF/VD

Ibanga	Izici Ezikhethekile	Inhloso yokuqukethwe kwe-H	Amandla Okuhamba (1,500°C, 100h)	Kuhle kakhulu
I-ZG270-500 Ultra-Low H	S≤0.012%, P≤0.015%, kukhishwe ugesi nge-vacuum	≤1.8 ppm	25 MPa	Insimbi yekhabhoni ejwayelekile LF
I-GS-20Mn5V (+V)	I-Vanadium 0.10-0.20% yokumelana nokukhasa	≤1.5 ppm	35 MPa	Insimbi ye-alloy, insimbi ethwalayo
I-ASTM A27 65-35 Low H	Nge-Cu+Ni+Mo, ukwelashwa kwe-dehydro	≤1.2 ppm	40 MPa	Insimbi ekhethekile, i-alloy ephezulu
1.5415 (16Mo3) ishintshiwe	Unyaka 0.25-0.35%, Cr 0.30% ubuningi	≤1.2 ppm	55 MPa	Ukumelana nokuqhekeka okukhulu (umsebenzi onzima we-VD)

Inhloso evamile:Eziningi zezinhlelo zokusebenza ze-LF, i-GS-20Mn5V inikeza ibhalansi engcono kakhulu. Ku-VD (vacuum), sincoma njalo i-ASTM A27 65-35 Low H noma i-16Mo3 eguquliwe.

Idatha Yokuhlolwa Kwe-Creep (Yangaphakathi Kwabesifazane)

Izinto	Izinga lokushisa	Ukucindezeleka	Isikhathi sokuqhekeka (okuphakathi)	Ukwelula lapho kuqhekeka
I-GS-20Mn5V	1,500°C	30 MPa	Amahora angu-210	12%
Imodi ye-ASTM A27	1,500°C	40 MPa	Amahora angu-165	8%
Imodi ye-16Mo3	1,500°C	50 MPa	Amahora angu-98	6%

*Lawa manani adlula kakhulu izidingo ezijwayelekile zebhodwe le-slag le-LF (ngokuvamile amahora angu-2-3 ekushiseni okuphezulu ngokushisa ngakunye).*

Iphrothokholi Yokubhaka I-Hydrogen (Yesevisi Yokuhlanza I-Vacuum)

Isiteji	Izinga lokushisa	Isikhathi	Isimo sezulu	Inhloso
1	350°C	Amahora angu-12	Umoya	Ukususwa komswakama kokuqala
2	550°C	Amahora angu-24	I-N₂ eyomile	Ukusabalala kwe-hydrogen ye-athomu
3	650°C	Amahora angu-48	I-N₂ eyomile + 5% i-H₂ getter	Ukuphelelwa amanzi okujulile
4	300°C (kupholile isithando somlilo)	Amahora ayi-10	I-N₂ eyomile	Vimbela ukumuncwa kabusha

Okuqukethwe kwe-hydrogen kokugcina kuqinisekiswe yi-LECO analyzer (isampula evela ku-trunnion core).

Iphrofayili Yangaphakathi Yokugeleza Kwe-Slag Yokwenziwa

Indawo	I-Slope	Irediyasi	Ukuqeda kobuso	Umsebenzi
Umngcele ophezulu	5° ngaphakathi	75mm	Kufakwe imishini, Ra 6.3	Umhlahlandlela wokungena nge-slag
Umzimba ongaphezulu	8° i-taper	Okuqhubekayo okungu-50mm	Kufakwe imishini, eRa 3.2	Ukwehla okukhulu kwe-slag
Umzimba ongezansi	6° i-taper	Okuqhubekayo okungu-60mm	Kupholishiwe, i-Ra 1.6	Ukusheshisa kokukhishwa
Ngaphansi	I-Hemispherical	R = 150mm	Kupholishiwe, i-Ra 1.6	Ayikho indawo yokuma eyisicaba

Ubuso obubushelelezi, obucwebezelayo obuhlanganiswe nokuwasha kwe-ceramic kunciphisa ukunamathela kwe-slag cishe ngo-70% uma kuqhathaniswa nezindawo ezibunjiwe.

Imbiza Yezinhlayiya Ezingamathani angu-20-50 Iladle Yezinhlayiya Ezinomthamo Ophakathi Yokwenza Insimbi ye-EAF ne-LF – Insimbi Yomzimba

Ukulawulwa Kwekhwalithi Yamabhodwe E-LF/VD Slag – Ukugxila Kwe-Vacuum & Creep

Ukuhlolwa	Indlela	Ukwamukelwa
Okuqukethwe kwe-hydrogen	Isihlaziyi sokushiswa kwe-LECO	≤1.5 ppm (noma njengoba kuchaziwe)
Ukuhlolwa kokuvuza kwe-Helium	I-vacuum chamber + mass spectrometer	Izinga lokuvuza < 1×10⁻⁶ mbar·l/s
I-Ultrasonic (ivolumu ephelele)	I-Phased Array + TOFD	Azikho iziphambeko ezihleliwe >3mm; isigaba se-porosity 2 esiphezulu
Ukuhlolwa kokwehla (ongakukhetha)	Umthwalo oqhubekayo ku-1,500°C	Ukuqhuma >100h ku-40 MPa
Ubukhulu (ukulingana kwe-turret)	Ukuskena nge-laser + ukuqhathanisa kwe-CAD	Akukho ukuphazamiseka; imvume iqinisekisiwe
I-Trunnion UT	Njengoba kuboniswe ku-ASME V, kanye ne-angle beam	Azikho izinkomba eziqondile >1.5mm
Ukuhlolwa kokukhishwa kwe-slag	Imodeli yesikali ene-slag yensimbi	I-slag esele <5%

01 Imbiza Yezinhlayiya Ezingamathani angu-20-50 Iladle Yezinhlayiya Ezinomthamo Ophakathi Yokwenza Insimbi ye-EAF ne-LF – Insimbi Yabesifazane

Inqubo Yokukhiqiza - Iyahambisana ne-Vacuum & Creep

1. Ukukhetha izinto– i-P ephansi, insimbi ephansi engu-S + insimbi yengulube, akukho insimbi egoqekayo.

2. Ukuncibilikisa i-EAF + ukucwenga i-LF– i-target S<0.010%, i-P<0.012%, ukwelashwa kwe-Ca.

3. Ukususa igesi nge-vacuum (VD) ku-0.5 torr– bamba imizuzu engama-25, susa i-H ibe ngaphansi kwe-1.5 ppm.

4. Ukuthulula phansi– ingilazi eyodwa ibe yisikhunta, izinga lokushisa elilawulwa ngokuqinile (1,550–1,570°C).

5. Ukupholisa okulawulwayo kusikhunta– Amahora angu-48 ngaphambi kokushukuma ukuze kugwenywe ukuncishiswa okuncane.

6. Ukuhlanza nokugaya kokuqala– susa izikhuphuli, igethi.

7. Ukwelashwa kokushisa kwesixazululo– 950°C, bamba amahora ama-2 ku-25mm, ukucima umoya okuphoqelelwe.

8. Ukubhaka kwe-dehydrogenation– njengoba kuboniswe etafuleni lephrothokholi elingenhla.

9. Ukulinganisela– 600°C, bamba amahora ama-4, uphole emoyeni.

10.Umshini wokulungisa onzima– i-contour engezansi, ama-trunnion bores.

11.I-NDT (UT, MT, PT, ukuhlolwa kokuvuza)– noma yikuphi ukwenqatshwa okubangela ukushintshwa.

12.Umshini wokugcina wokusebenza– iphrofayili yangaphakathi ene-CNC, efinyelela ku-Ra 3.2.

13.Ukugeza nge-ceramic– ifuthwe, yomiswe ngomoya, bese ishiswa ku-400°C.

14.Umbiko wokugcina kanye nokumaka.

02 Imbiza Yezinhlayiya Ezingamathani angu-20-50 Iladle Yezinhlayiya Ezinomthamo Ophakathi Yokwenza Insimbi ye-EAF ne-LF – Insimbi Yabesifazane

Ukupakishwa Kwezimbiza Ze-LF/VD Slag (Ukuhlanzeka Okuzwela)

Ngenxa yokuthi izimbiza ze-slag ze-LF/VD zingasetshenziswa ekusetshenzisweni kwe-vacuum, sigwema ukugcoba okusekelwe kuma-hydrocarbon. Esikhundleni salokho:

● Izindawo ezifakwe ngomshini zivikelwe ngeifilimu yepulasitiki ye-vapor corrosion inhibitor (VCI), hhayi uwoyela.

● Kuvaliwe ngaphakathiisikhwama se-vacuum(ongakukhetha) uma kudingeka ukuze kusetshenziswe isevisi ebalulekile yokuhlanza i-vacuum.

● Ibhokisi lokhuni eliqiniswe ngensimbi, i-desiccant yangaphakathi.

● Ukuthunyelwa ngendiza ukuze kufakwe ezinye izinto ngokushesha (isisindo sembiza < 1,500 kg ngosayizi omncane).

Izifundo Zezimo - Izimbiza Ze-Slag ze-LF/VD Ziyasebenza

Icala 1: Isitshalo Sensimbi Ethwalayo, eJapane - Ukuvimbela Uqhekeko Lwe-Hydrogen

Inselele:Izimbiza ezisetshenziswa enqubweni ye-VD zakha imifantu ngemva kwezinyanga ezingu-18 ngenxa yokushaja kwe-hydrogen.
Isixazululo:I-Womic inikeze izimbiza ze-ASTM A27 ezine-hydrogen ephansi (H≤1.2ppm) nge-dehydrogenation bake.
Umphumela:Izinyanga ezingu-36 futhi azinazo iziqhekeko. Phinda u-ode amabhodwe angu-20.

Icala 2: Umshini Wensimbi Yamapayipi, eJalimane – Ukuguqulwa Kwe-Creep

Inselele:Imbiza ye-slag ye-LF yawa eceleni komphetho ngemva kweminyaka emibili, okwabangela ukungalungi kahle komhume.
Isixazululo:I-alloy eguquliwe engu-16Mo3 ene-Mo ephezulu, kanye nobukhulu bodonga bukhuphuke ngo-8mm.
Umphumela:Akukho ukuguquguquka okulinganiselwe ngemva kweminyaka emi-3. Ikhasimende lamukele i-Womic njengomhlinzeki walo yedwa.

Icala 3: Insimbi Ekhethekile LF, e-USA - I-Slag Freeze-on

Inselele:Izinsalela ze-slag ezenziwe zanciphisa amandla asebenzayo ngo-30% zingakapheli izinyanga eziyi-6.
Isixazululo:Iphrofayili yangaphakathi epholishiwe (Ra 1.6) + ukugeza nge-ceramic.
Umphumela:Ukulahlekelwa amandla <5% ngemva kwezinyanga eziyi-12. Isikhathi sokulahla inkunkuma sincishiswe ngo-40%.

05 Imbiza Yezinhlayiya Ezingamathani angu-20-50 Iladle Yezinhlayiya Ezinomthamo Ophakathi Yokwenza Insimbi ye-EAF ne-LF – Insimbi Yabesifazane

Izicelo – Lapho Izimbiza Ze-LF/VD Zibaluleke Kakhulu

●Iziteshi zesithando somlilo se-ladle (LF)– yensimbi ye-alloy, insimbi yamathuluzi, insimbi ethwala

●Izihlanzi zokuhlanza ugesi (VD / VOD)– kufaka phakathi amazinga ensimbi engagqwali

●Ukuthuthwa kwe-slag yendebekusukela ekucwengisisweni kuya egcekeni le-slag

●Izitshalo zensimbi ezikhethekileukukhiqiza izinsimbi ezihlanzekile kakhulu (izindiza, amapayipi)

●Ucwaningo kanye nezitshalo zokuhlola– izimbiza ezincane (1-5 ton) ze-slag

Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa) – LF/VD Specific

Q: Kungani okuqukethwe yi-hydrogen kubaluleke kangaka ezitsheni ze-slag?
A: Ngesikhathi sokukhipha igesi nge-vacuum, i-hydrogen encibilikisiwe ekubunjweni kwensimbi ingasakazeka futhi ihlangane kabusha ibe yi-hydrogen yama-molecule ezindaweni ezingezona ezensimbi. Lokhu kudala ingcindezi yangaphakathi, okuholela ekuqhekekeni noma ekuqhekekeni - ngezinye izikhathi okubizwa ngokuthi “ukuqhekeka kwe-hydrogen.” Izimbiza ze-LF/VD ziyathinteka ngoba zigcinwa ngaphansi kwe-vacuum isikhathi eside.

Q: Ungaqinisekisa yini ukuthi okuqukethwe kwe-hydrogen ku-<1.0 ppm?
A: Yebo, kodwa kudinga umkhuba okhethekile wokuncibilikisa (ukuncibilikisa i-vacuum induction noma ukuncibilikisa i-electroslag) futhi kubiza kakhulu. Eziningi zezicelo, i-1.5 ppm yanele.

Q: Ingabe niyanikeza ukuhlolwa kokuvuza kwe-vacuum?
A: Yebo, senza ukuhlolwa kokuvuza kwe-helium uma kuceliwe futhi sikhipha isitifiketi ngokwe-ISO 20485. Siqinisekisa izinga lokuvuza <1×10⁻⁶ mbar·l/s.

Q: Kufanele kushintshwe kangaki izimbiza ze-slag ze-LF?
A: Ngokuvamile njalo eminyakeni emi-3-5, kuye ngemijikelezo. Ukuguquguquka kokuhambahamba kuyisici esiyinhloko esivimbela impilo. Ukuhlolwa kwe-UT kwaminyaka yonke kungabona izikhala zokuhambahamba kusenesikhathi.

U: Ungakwazi yini ukunikeza amabhodwe e-slag ijakethi yomoya opholile?
A: Ngezinhlelo zokusebenza ze-LF ezidinga ukupholisa ngokushesha ngaphambi kokusetshenziswa okulandelayo, singaklama ijakethi yomoya ehlanganisiwe (igobolondo langaphandle lensimbi elineziteshi zomoya). Lokhu kunciphisa isikhathi sokupholisa kusukela kumaminithi angu-90 kuya kumaminithi angu-20.

U: Ingabe izimbiza zakho ze-slag ze-LF ziyahambisana nezinhlelo zokuthola amazinga e-slag ngokuzenzakalelayo?
A: Yebo. Sihlinzeka ngephedi yokumisa eyisicaba erimu ukuze kutholakale inzwa ye-radar noma ye-laser. Ngaphandle kwalokho, singafaka ama-thermocouple ukuze kutholakale ungqimba lwe-slag.

U: Ingabe ninikeza ukuqeqeshwa kokuhlolwa kwe-LF pot?
A: Yebo, sinikeza ukuqeqeshwa kosuku olulodwa endaweni yethimba lakho lokulungisa: i-UT yama-trunnion, izindlela zokuhlola ngokubona, kanye nezinqubo zokulungisa imifantu.

Q: Iyini iwaranti ejwayelekile yebhodwe le-slag le-LF/VD?
A: Izinyanga ezingama-24 noma imijikelezo eyi-10,000 – noma yikuphi okuza kuqala. Ngesevisi ye-vacuum (ngokuhlolwa kokuvuza), iwaranti inwetshwa ibe yizinyanga ezingama-36 ngokumelene nokuqhekeka kwe-hydrogen.