Tšepe ke eng?
Tšepe ke motsoako oa tšepe 'me ntho e ka sehloohong (ea sehlooho) ea motsoako ke Carbon. Leha ho le joalo, ho na le mekhelo e meng ea tlhaloso ena joalo ka litšepe tse se nang li-interstitial-free (IF) le mofuta oa 409 ferritic stainless steels, moo carbon e nkoang e le litšila.
Alloy ke eng?
Ha likarolo tse fapaneng li kopantsoe ka bongata bo fokolang karolong ea motheo, sehlahisoa se hlahisoang se bitsoa alloy ea motheo oa motheo. Kahoo tšepe ke motsoako oa tšepe hobane tšepe ke motheo oa tšepe (main constituent) ka tšepe 'me motsoako oa mantlha ke Carbon. Lintho tse ling tse kang Manganese, Silicon, Nickel, Chromium, Molybdenum, Vanadium, Titanium, Niobium, Aluminium, joalo-joalo le tsona li eketsoa ka bongata bo fapaneng ho hlahisa limaraka (kapa mefuta) e fapaneng ea tšepe.
Jindalai (Shandong) Steel Group Co., Ltd. ke setsebi le morekisi ea ka sehloohong oa litšepe le litšepe tse sa hloekang. Romela potso ea hau mme re tla thabela ho buisana le uena ka botsebi.
Mefuta e fapaneng ea tšepe ke efe?
Ho ipapisitsoe le liqapi tsa lik'hemik'hale, tšepe e ka aroloa ka mefuta e mene (04) ea mantlha:
● Tšepe ea Khabone
● Tšepe e Hloekileng
● Tšepe ea Alloy
● Tool Steel
1. Tšepe ea Khabone:
Tšepe ea carbon ke tšepe e sebelisoang ka ho fetisisa indastering 'me e nka karolo e fetang 90% ea kakaretso ea tlhahiso ea tšepe. Ho ipapisitsoe le litaba tsa khabone, litšepe tsa Carbon li arotsoe ka lihlopha tse tharo.
● Tšepe ea Khabone e Tlaase / Tšepe e Bonolo
● Tšepe ea Carbon e Bohareng
● Tšepe e phahameng ea Carbon
Likahare tsa carbon li fanoe tafoleng e ka tlase:
| Che. | Mofuta oa tšepe ea carbon | Peresente ea Carbon |
| 1 | Tšepe e tlase ea Carbon/Tšepe e bonolo | Ho fihla ho 0.25% |
| 2 | Tšepe ea Carbon e Bohareng | 0.25% ho isa ho 0.60% |
| 3 | Tšepe e phahameng ea Carbon | 0.60% ho isa ho 1.5% |
2. Tšepe e Hloekileng:
Tšepe e sa hloekang ke tšepe ea motsoako e nang le 10.5% Chromium (Bonyane). Tšepe e sa hloekang e bonts'a thepa ea ho hanyetsa kutu, ka lebaka la ho thehoa ha lera le tšesaane haholo la Cr2O3 holim'a eona. Lera lena le boetse le tsejoa e le lera la sesupo. Ho eketsa palo ea Chromium ho tla eketsa khanyetso ea kutu ea thepa. Ntle le Chromium, Nickel le Molybdenum le tsona li eketsoa ho fana ka thepa e lakatsehang (kapa e ntlafalitsoeng). Tšepe e sa hloekang e boetse e na le mefuta e fapaneng ea Carbon, Silicon le Manganese.
Litšepe tse sa hloekang li boetse li hlalosoa e le;
1. Ferritic Stainless Steels
2. Martensitic Stainless Steels
3. Litšepe tsa Austenitic Stainless
4. Duplex Stainless Steels
5. Precipitation-Hardening (PH) Stainless Steels
● Ferritic Stainless Steel: Litšepe tsa Ferritic li na le li-alloys tsa Iron-Chromium tse nang le likarolo tse bohareng tsa 'mele tsa cubic crystal structures (BCC). Tsena ka kakaretso ke tsa makenete 'me li ke ke tsa thatafatsoa ke kalafo ea mocheso empa li ka matlafatsoa ke ho sebetsa ha serame.
● Austenitic Stainless Steel: Litšepe tsa Austenitic ha li na kutu haholo. Ha e na makenete ebile ha e phekolehe ka mocheso. Ka kakaretso, litšepe tsa austenitic li cheseha haholo.
● Martensitic Stainless Steel: Litšepe tse sa hloekang tsa Martensitic li matla haholo ebile li thata empa ha li khone ho bola joaloka lihlopha tse ling tse peli. Litšepe tsena li khona ho sebetsa haholo, li khoheli ebile li khona ho phekoleha mocheso.
● Duplex Stainless Steels: Duplex stainless steel e na le microstructure ea mekhahlelo e 'meli e nang le lithollo tsa tšepe e sa hloekang ea ferritic le ea austenitic (ke hore Ferrite + Austenite). Litšepe tsa Duplex li matla ka makhetlo a mabeli ho feta litšepe tsa austenitic kapa ferritic.
● Litšepe Tsa Precipitation-Hardening (PH) Stainless Steels: Precipitation-Hardening (PH) Stainless Steels li na le matla a phahameng haholo ka lebaka la ho thatafala ha pula.
3. Alloy Steel
Ka tšepe ea alloy, ho sebelisoa likarolo tse fapaneng tsa likarolo tsa motsoako, ho finyella lintho tse lakatsehang (tse ntlafetseng) tse kang weldability, ductility, machinability, matla, hardenability le corrosion resistance, joalo-joalo Tse ling tsa lisebelisoa tse sebelisoang ka ho fetisisa tsa alloy le liphello tsa tsona ke tse latelang;
● Manganese - E eketsa matla le ho thatafala, e fokotsa ho ductility le ho chesehela.
● Silicon - E sebelisoa e le li-deoxidizers tse sebelisoang ha ho etsoa tšepe.
● Phosphorus - E eketsa matla le ho thatafala, 'me e fokotsa ho tiea ha tšepe.
● Sebabole -E fokotsa matla a ho tsitsa, ho ba matla le ho chesehela. E fumanoa ka mokhoa oa sulfide inclusions.
● Koporo - e ntlafetseng ea ho thibela kutu.
● Nickel - E eketsa ho thatafala le Matla a Amang a litšepe.
● Molybdenum - E eketsa ho thatafala le ho matlafatsa khanyetso ea creep ea litšepe tse tlaase tsa alloy.
4. Tool Steel
Lisebelisoa tsa lisebelisoa li na le lik'habone tse phahameng (0.5% ho 1.5%). Likahare tsa carbon tse phahameng li fana ka boima bo phahameng le matla. Litšepe tsena hangata li sebelisoa ho etsa lisebelisoa le ho shoa. Lisebelisoa tsa tšepe li na le mefuta e fapaneng ea tungsten, cobalt, molybdenum le vanadium ho eketsa mocheso le ho se sebetse, le ho tšoarella ha tšepe. Sena se etsa hore litšepe tsa lisebelisoa li be tse loketseng ho sebelisoa e le lisebelisoa tsa ho seha le ho cheka.
Sehlopha sa Jindalai Steel se lula se na le thepa e ntle ka ho fetisisa ea lihlahisoa tsa tšepe indastering. Jindalai e ka u thusa ho khetha lisebelisoa tse loketseng tsa tšepe ho netefatsa hore u fumana seo u se hlokang kapele kamoo ho ka khonehang ha nako ea ho reka e fihla. Haeba theko ea thepa ea tšepe e le nakong e tlang e haufi, kopa quote. Re tla fana ka e tla u fa lihlahisoa tseo u li hlokang ka potlako.
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Nako ea poso: Dec-19-2022