Ezweni lobunjiniyela besimanje kanye nokukhiqiza, isidingoizinsimbi ezinamandla aphezulu, ezishibilikayo, nezihlala isikhathi esideakukaze kube nkulu kangaka. Phakathi kwalezi zinto ezithuthukisiwe,Insimbi yebanga le-P690ivelele njengenye yezinketho ezithembeke kakhulu zezicelo zesakhiwo ezisindayo. Lesi sihloko sikaI-SAKYSTEELihlola incazelo, ukwakheka, izakhiwo, kanye nokusetshenziswa kwensimbi ye-P690, isiza onjiniyela, abakhiqizi, kanye nabaphathi bephrojekthi ukuthi kungani leli banga seliye laba ukukhetha okuthandwayo emikhunjini yokucindezela, amapulatifomu asogwini, kanye nezakhiwo ezinamandla aphezulu.
1. Ukubuka konke kwe-P690 Grade Steel
I-P690kuyintoinsimbi eqinile futhi eqinisiwe enamandla amakhuluisetshenziswa kakhulu ekwakhiweni kweimikhumbi yokucindezela, ama-boiler, kanye nezingxenye zesakhiwo ezisindayoIgama elithi “P” egameni layo lishoinsimbi yesitsha sokucindezela, kuyilapho inombolo ethi “690” ibhekisela ku-amandla okukhiqiza okungenani angu-690 MPa, okuyinto ephezulu kakhulu uma iqhathaniswa nezinsimbi zesakhiwo ezivamile.
Lokhu okubalulekile kuyingxenyeIzinga elijwayelekile le-EN 10028-6, okuchaza izinsimbi ngezinjongo zokucindezela ezidlulayoukwelashwa kokushisa okucishiwe nokushisiwe (QT)Ngenxa yokusebenza kwayo okuphezulu kwemishini kanye nokushibilika okuqhubekayo,I-P690yamukelwa kabanzi ku-imikhakha yamandla, ye-petrochemical, yasogwini lolwandle, kanye neyezokuvikela.
Izici Eziyinhloko:
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Amandla okukhiqiza amancane: 690 MPa
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Ububanzi bamandla okudonsa: 770–940 MPa
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Ukwelashwa ngokushisa: Kucinyiwe futhi kuqiniswe
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Ukuqina okuhle kakhulu emazingeni okushisa aphansi
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Ukushisela okuhle ngokushisa okulawulwayo kanye nokwelashwa ngemuva kokushisela
At I-SAKYSTEEL, sihlinzekaI-P690Q, i-P690QL, kanye ne-P690QL2izinhlobo ezahlukene, ezinikeza amazinga ahlukene okuqina komthelela afanele izindawo ezahlukahlukene zesevisi.
2. Izinhlobo kanye namazinga
I-P690 ihlukaniswe ngama-sub-grade amathathu ngokusekelwe ku-izidingo zokushisa zokuhlola umthelela:
| Ibanga | Ukuqokwa | Izinga Lokushisa Eliphansi Lokuhlola Umthelela | Isicelo Esijwayelekile |
|---|---|---|---|
| I-P690Q | Kucinyiwe futhi kuthambile | 0°C | Imithambo yokucindezela evamile |
| I-P690QL | Kucinyiwe futhi Kuqinisiwe (Izinga lokushisa eliphansi) | -40°C | I-Offshore kanye ne-cryogenic |
| P690QL2 | Kucinyiwe futhi kuqiniswe (Izinga lokushisa eliphansi kakhulu) | -60°C | Izindawo zase-Arctic kanye nezingaphansi kwezinga-zero |
Zonke lezi zigaba ziyavumelanaI-EN 10028-6futhi ingahlinzekwa nakuOkufanayo kwe-ASME/ASTMuma ucela. Ipuleti ngalinye noma ingxenye evela ku-I-SAKYSTEELilandeleka ngokuphelele, ihlinzekwa ngeIsitifiketi se-EN 10204 esingu-3.1 noma esingu-3.2, futhi ihlolwe ngokwezindinganiso zomhlaba wonke.
3. Ukwakheka Kwamakhemikhali
Iukwakheka kwamakhemikhaliInsimbi ye-P690 ilinganiswe ngokucophelela ukuze ifinyelele amandla aphezulu ngaphandle kokulahlekelwa ukushibilika noma ukuqina. Uhla olujwayelekile luboniswe ngezansi:
| Isici | Okuqukethwe (%) |
|---|---|
| Ikhabhoni (C) | Umkhawulo ongu-0.18 |
| I-Silicon (Si) | Umkhawulo ongu-0.50 |
| I-Manganese (Mn) | 0.60–1.70 |
| I-Phosphorus (P) | Ubuningi obungu-0.025 |
| I-Sulfur (S) | Ubuningi obungu-0.015 |
| I-Chromium (Cr) | 1.00–2.00 |
| I-Nickel (Ni) | 1.00–2.00 |
| I-Molybdenum (Mo) | 0.30–0.70 |
| I-Vanadium (V) | 0.08–0.20 |
Iinhlanganisela yokuhlanganisa i-Ni, i-Cr, ne-Moinikeza okuhle kakhuluukuqina nokumelana nokugqwala, ngenkathiokuqukethwe okuphansi kwekhabhonikuqinisekisaukushibilika okuhle.
4. Izakhiwo Zemishini
Isici esiyinhloko sensimbi yezinga le-P690 ukuthiukusebenza okuhle kakhulu kwemishiniNgemva kokucima nokulungisa, izinto ziletha ibhalansi yamandla aphezulu okukhiqiza, amandla okudonsa, kanye nokuqina okwenza kube kuhle kakhulu ezimweni zesevisi ezimbi kakhulu.
| Impahla | Inani Elijwayelekile |
|---|---|
| Amandla Okukhiqiza (i-MPa) | ≥690 |
| Amandla Okudonsa (i-MPa) | 770–940 |
| Ukwelulwa (%) | 14–16 |
| Amandla Omthelela (i-Charpy V-notch) | ≥60 J ekushiseni okucacisiwe |
| Ubulukhuni (HBW) | ≤ 300 |
Ngisho nangaphansi kwezimo zokushisa eziphansi, i-P690 iyayigcinaukuqina komthelela kanye nokuqina, ukuvimbela ukwehluleka kokuqhekeka kanye nokuqinisekisa ukuthembeka kwesikhathi eside.
5. Inqubo Yokukhiqiza
Ukukhiqiza insimbi yezinga le-P690 kudingai-metallurgy ethuthukisiwe kanye nokwelashwa kokushisa okulawulwayoukufeza isakhiwo sayo esincane esinohlaka oluhle. Inqubo ejwayelekile ihlanganisa:
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Ukuncibilika Okuyinhloko– Ukusebenzisa i-Electric Arc Furnace (EAF) noma i-Basic Oxygen Furnace (BOF).
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Ukucwenga– Isithando Somlilo Seladle (LF) kanye ne-Vacuum Degassing (VD) ukususa ukungcola.
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Ukuphonsa Okuqhubekayo– Ukwakha ama-billet noma ama-slab anokwakheka okufanayo.
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Ukujikijela Okushisayo– Amapuleti asongwa afinyelele ebangeni lokujiya okufiswayo (ngokuvamile 6–120 mm).
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Ukucima– Ukupholisa okusheshayo ukuze kufezwe isakhiwo se-martensitic.
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Ukulinganisela– Ukushisa kabusha okulawulwayo ukuze kubuyiselwe ukuqina nokuqina.
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Ukuhlolwa kwe-Ultrasonic kanye Nomphezulu- Ukuqinisekisa amapuleti angenaphutha ngaphambi kokuthunyelwa.
I-SAKYSTEELisebenzisa imigqa yokukhiqiza yesimanje ukuqinisekisaukunemba kobukhulu, ukuqeda ubuso, kanye nokuvumelana komshinikuyo yonke inqwaba ye-P690.
6. Ukushisela Nokwenza
Nakuba insimbi ye-P690 inamandla aphezulu, ihlala ikhonaokushibilikayo kusetshenziswa izinqubo ezivamilenjenge-SMAW, i-SAW, i-GTAW, noma i-GMAW — uma nje kufaneleukwelashwa kokushisa ngaphambi kokushisa kanye nokushisa ngemva kokushiswa (PWHT)izinqubo ziyalandelwa.
Izincomo Eziyinhloko Zokushisela:
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Shisisa ku-150–200°C ukuze unciphise ingozi yokuqhekeka kwe-hydrogen
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Gcina izinga lokushisa eliphakathi kwe-interpass lingaphansi kuka-250°C
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Sebenzisa ama-electrode angena-hydrogen ephansi (isb., E11018-G)
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Yenza i-PWHT ku-580–620°C ukuze unciphise ukucindezeleka
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Qinisekisa ukuthi ukupholisa kancane ngemva kokushisela ukuze uvimbele ukwanda kobulukhuni
Ukulawula okufanele ngesikhathi sokushisela kuqinisekisaamalunga aphilile anengozi encane yokuba buthakathaka noma ukulahleka kokuqina.
7. Izicelo Ezijwayelekile
Inhlanganisela yeamandla aphezulu, ukushibilika okuhle kakhulu, kanye nokuqina komthelelakwenza i-P690 ifaneleke kakhulu ezindaweni zobunjiniyela ezidinga amandla. Izinhlelo zokusebenza ezivamile zifaka:
1. Imikhumbi Yokucindezela
Kusetshenziswe ku-izimboni zikawoyela, igesi, namakhemikhaliyemikhumbi ephatha ukucindezeleka okuphezulu kwangaphakathi kanye nemidiya egqwalisayo. Amandla ayo aphezulu okukhiqiza avumelaizindonga ezincane, ukunciphisa isisindo kanye nezindleko.
2. Amapulatifomu Angaphandle Kwaselwandle
Amabanga e-P690QL kanye ne-P690QL2 avame ukusetshenziswa ku-izingxenye zesakhiwo zasogwini lolwandle, njengeimilenze, ama-braces, namajakethi, lapho ukuqina okuphezulu kanye nokusebenza kwezinga lokushisa eliphansi kubaluleke kakhulu.
3. Ama-boiler kanye nama-heat exchanger
Amandla nokuqina kwezinga lokushisa eliphezulu kwenza i-P690 ifanelekeizigubhu zebhoyila kanye namagobolondo okushintshanisa ukushisaukusebenza ngaphansi kokucindezeleka okujikelezayo.
4. Imishini Enzima Nama-Crane
Kusetshenziswe ku-ozimele abathwala umthwalo, ama-boom okuphakamisa, futhiizingalo zomshini, i-P690 inikeza kokubili amandla aphezulu okulayisha kanye nokumelana nokwehluleka kokukhathala.
5. Izicelo Zokuvikela Nezolwandle
Ezindaweni zasemanzini noma ezinqoleni zokuzivikela,inzuzo yamandla kuya kwesisindoye-P690 ithuthukisa ukuvikelwa ngenkathi inciphisa isisindo esiphelele.
8. Izinzuzo Zokusebenzisa Insimbi ye-P690
Ukukhetha i-P690 kunikeza izinzuzo eziningi zokusebenza kanye nezomnotho uma kuqhathaniswa nezinsimbi ezivamile ezifana ne-P355 noma i-P460.
Izinzuzo Eziyinhloko:
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Amandla Aphezulu:Ivumela imiklamo emincane yomthwalo ofanayo, inciphisa isisindo sonke.
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Ukushibilika Okuhle Kakhulu:Igcina ubuqotho bamalunga uma iphathwa kahle.
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Ukuqina Okuphakeme:Imelana nemithelela enamandla kanye nezinga lokushisa eliphansi.
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Ukuqina Okuthuthukisiwe:Iyamelana nokukhathala kanye nokuqhekeka kokugqwala kokucindezeleka.
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Ukusebenza Kahle Kwezindleko:Ukwehla kobukhulu bezinto zokwakha kuholela ekwehleni kwezindleko zokukhiqiza nezokuthutha.
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Impilo Yesevisi Eyengeziwe:Ukusebenza okuthembekile ngaphansi kwezimo zokusebenza ezinzima.
I-SAKYSTEELinikeza imikhiqizo ye-P690 eyenziwe ngokwezifiso ehlangabezana nezidingoizidingo ezithile zephrojekthi— kusukela ekujiyeni kwepuleti kanye nokuqedwa kobuso kuya ekuqineni okunomthelela kanye nezinga lesitifiketi.
9. Ukuqhathaniswa nezinye izinsimbi zesakhiwo
| Impahla | P355 | P460 | I-P690 |
|---|---|---|---|
| Amandla Okukhiqiza (i-MPa) | 355 | 460 | 690 |
| Ukwelashwa Kokushisa | Okujwayelekile | Okujwayelekile | Kucinyiwe futhi kuthambile |
| Ukushibilika | Kuhle kakhulu | Kuhle | Kudingeka Ukushisa Okulawulwayo |
| Isicelo | Imikhumbi evamile | Ingcindezi ephakathi nendawo | Umfutho ophezulu, ogwini lolwandle |
| Ukusebenza Kahle Kwesisindo | Okumaphakathi | Kuhle | Kuhle kakhulu |
Njengoba kubonisiwe,I-P690 inikeza cishe amandla okukhiqiza aphindwe kabiliye-P355, okuvumela abaklami ukuthi bakhe imikhumbi yokucindezela elula kodwa enamandla kanye nezingxenye zasogwini.
10. Ukuqinisekiswa Kwekhwalithi kanye Nesitifiketi
Ipuleti ngalinye nomkhiqizo kuhlinzekwe yiI-SAKYSTEELidlula kanzimaukuhlolwa nokuhlolwangaphambi kokulethwa:
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Ukuhlolwa kwe-Ultrasonic (UT) kanye nokuhlolwa kokukhubazeka kobuso
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Ukuhlolwa kokuthamba, umthelela, kanye nokuqinangokwe-EN 10028-6
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Ukuqinisekiswa kokwelashwa kokushisa(Amarekhodi omjikelezo we-Q&T)
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Ukuhlolwa kobukhulu kanye nokuhlolwa kobucaba
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I-EN 10204 3.1 / 3.2 Isitifiketi
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Ukuhlolwa komuntu wesithathu (Lloyd's, DNV, SGS, TUV) uma kuceliwe
I-SAKYSTEEL igcina igcweleukulandeleka kusukela ezintweni ezingavuthiwe kuya kumkhiqizo oqediwe, ukuqinisekisa ukuzethemba okuphelele kuwo wonke amaklayenti.
11. Amafomu Omkhiqizo Atholakalayo
Insimbi yezinga le-P690 inganikezwa ngezindlela ezahlukene zomkhiqizo kuye ngezidingo zephrojekthi:
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Amapuleti: Ubukhulu obungu-6–120 mm
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Amabhulokhi ahlanganisiwe
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Ama-Flanges kanye nokufakwa kwawo
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Amabha asongiwe
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Sika amaphrofayili kanye nezimo ezenziwe ngaphambilini
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Izingxenye ezenziwe ngokwezifiso
Ngayinye iyatholakala ngeizitifiketi zomshini wokugaya, ukupakisha kwamanye amazwe, kanye nemibiko yokuhlolailungele ukuthunyelwa kwamanye amazwe.
12. Iziqondiso Zokugcina Nokuphatha
Ukuze kulondolozwe ubuqotho bensimbi ye-P690 ngaphambi kokwenziwa, kufanele kuqashelweukuphathwa kahle kanye nokugcinwa:
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Gcina amapuleti ezindaweni ezomile, ezimboziwe ukuze ugweme ukugqwala.
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Gwema ukuhlanganisa izinsimbi ezahlukene ukuze uvimbele ukusabela kwe-galvanic.
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Sebenzisa amathuluzi okuphakamisa athambile ukuvimbela amamaki noma ukuqhekeka kobuso.
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Faka ifilimu yamafutha evikelayo yesikhashana ukuze ugcine isikhathi eside.
Le mikhuba isiza ukugcina ikhwalithi yendawo kanye nokuthembeka kwemishini kuze kube yilapho kuqala ukucubungula.
13. Ukunikezwa Komhlaba Wonke kanye Nokuthuthwa Kwempahla
Njengoba nginolwazi lwamashumi eminyaka lokuthumela kwamanye amazwe,I-SAKYSTEELikhonza amakhasimende ku-IYurophu, iMpumalanga Ephakathi, iNingizimu-mpumalanga ye-Asia, kanye neNingizimu MelikaIthimba lethu lezokuthutha lihlinzekaukulethwa komnyango nomnyango, esekela ama-Incoterms afana ne-I-FOB, i-CFR, i-CIF, kanye ne-DAP.
Singahlela futhi:
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Izinsizakalo ezilinganiselwe ngobukhulu
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Ukupakisha kokuthumela ngaphandle ngokwezifiso
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Ukudluliselwa kwesitifiketi sokuhlolwa kwe-Express mill
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Amashejuli okukhiqiza aguquguqukayo amaphrojekthi aphuthumayo
I-SAKYSTEEL izibophezele ekuhlinzekeniizinto ezithembekile kanye nokulethwa ngesikhathi, ukusiza ozakwethu ukuqedela amaphrojekthi ngempumelelo nangokuzethemba.
14. Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa)
Umbuzo 1: Isetshenziselwani i-P690?
A1: I-P690 isetshenziswa kakhulu ku-imikhumbi yokucindezela, izakhiwo zase-offshore, kanye nezingxenye ezithwala umthwalo ezinamandla aphezuluokudinga amandla aphezulu okukhiqiza nokuqina.
Umbuzo 2: Ingabe i-P690 iyashibilika?
A2: Yebo, ingashintshwa kusetshenziswa izindlela ezivamile, kodwaukushisa kwangaphambili kanye ne-PWHTziyadingeka ukuvimbela ukuqhekeka.
UMBUZO 3: Uyini umehluko phakathi kwe-P690Q ne-P690QL2?
A3: Umehluko usekuizinga lokushisa lokuhlola umthelela— I-Q ihlolwa ku-0°C, i-QL ku--40°C, kanye ne-QL2 ku--60°C.
UMBUZO 4: Ingabe i-SAKYSTEEL inikeza isitifiketi?
A4: Impela. Zonke izinto zilethwa ngeIzitifiketi ze-EN 10204 3.1 noma 3.2, futhiukuhlolwa komuntu wesithathuingahlelwa uma iceliwe.
Umbuzo 5: Ingabe i-P690 ingathatha indawo yezinsimbi ze-Inconel noma ze-Duplex?
A5: Hhayi ngokuqondile — I-P690 inikeza amandla afana namanye ama-duplex grade kodwa ayinawo ukumelana nokugqwala. Ingcono kakhulu emandleni esakhiwo, hhayi ezindaweni ezinolaka zamakhemikhali.
15. Isiphetho
Insimbi yebanga le-P690imelela isizukulwane esisha seizinto ezicinyiwe nezithambile ezinamandla aphezuluyakhelwe izinhlelo zokusebenza zobunjiniyela obubucayi. Inhlanganisela yayo yeAmandla okukhiqiza angu-690 MPa, ukuqina okuhle kakhulu, futhiukushibilika okulawulwayokwenze kube yinto ebalulekileimikhumbi yokucindezela, amapulatifomu asogwini lolwandle, kanye nezingxenye zesakhiwo ezisindayoemhlabeni wonke.
NgokukhethaI-SAKYSTEEL, uthola ukufinyelela ku:
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Ikhwalithi ehambisanayo eqinisekisiwe ngokwezindinganiso zomhlaba wonke
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Izinketho zokukhiqiza nokuhlola ezenziwe ngokwezifiso
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Ukuthunyelwa komhlaba wonke kanye nokusekelwa kobuchwepheshe
Ngokusungula izinto ezintsha okuqhubekayo kanye nokuzibophezela ekwenzeni kahle,I-SAKYSTEELihlala yakhoumlingani othembekile ezixazululweni zensimbi ezinamandla aphezulu.
Isikhathi sokuthunyelwe: Okthoba-24-2025