Litšepe tse sa hloekang li tla ka limaraka tse ngata, e 'ngoe le e 'ngoe e entsoe ho fana ka likarolo tse ikhethang tsa ts'ebetso. Har'a bona,440C tšepe e sa hloekange hlahella e le acarbon e phahameng, tšepe e sa hloekang ea chromium e phahameng ea chromiumtsejoa ka eonaho thatafala ho fetisisa, ho itoanela, le ho hanyetsa kutu. E sebelisoa haholo lits'ebetsong tse sebetsang hantle moo ho bolokang bohale, matla le ho tšoarella ho leng bohlokoa.
Re hlahlobalitšobotsi, thepa ea mochine, le litšebeliso tse tloaelehilengea 440C tšepe e sa hloekang. Hore na o kenya letsoho moralong oa indasteri, tlhahiso, lisebelisoa, kapa tlhahiso ea lisebelisoa tsa bongaka, sengoloa sena se tla fana ka leseli la bohlokoa mabapi le hore na hobaneng 440C tšepe e sa hloekang e le khetho e tsebahalang bakeng sa lits'ebetso tse boima.
At sakysteel, re sebetsa ka ho khetheha ho faneng ka tšepe ea boleng bo holimo ea 440C ka mefuta le boholo bo fapaneng, ho fihlela litlhoko tsa liindasteri lefatšeng ka bophara. Ikopanyesakysteelbakeng sa tšehetso ea litsebi, mehloli e tšepahalang, le litharollo tsa thepa tse lokiselitsoeng.
1. 440C Stainless Steel ke eng?
440C tšepe e sa hloekangke amotsoako oa tšepe ea martensiticka maemo a phahameng acarbon le chromium. Ke karolo ea letoto la 400 mme ke mophato o hananang le ho bola har'a litšepe tse 440 tse sa jeleng (440A, 440B, le 440C).
Sebopeho se Tloaelehileng sa 440C:
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Khabone (C)0.95% - 1.20%
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Chromium (Cr): 16.0% - 18.0%
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Manganese (Mn)≤ 1.0%
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Silicon (Si)≤ 1.0%
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Molybdenum (Mo): Taba ea boikhethelo liphetolelong tse ling bakeng sa boima bo ekelitsoeng
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Nickel (Ni): Hlakola lipalo
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Tshipi (Fe): Ho leka-lekanya
Sebopeho sena se lumella 440C ho fihlaboima bo phahameng (ho fihlela ho 60 HRC)ha e phekoloa mocheso, ha e ntse e fana ka khanyetso e ntle ea kutu.
2. Litšobotsi tsa Bohlokoa tsa 440C Stainless Steel
a) Ho Thata le Matla a Phahameng
Ha mocheso o phekoloa hantle, 440C e ka finyellaMaemo a thata a Rockwell pakeng tsa 58 ho isa ho 60 HRC, ho etsa hore e be e 'ngoe ea litšepe tse thata ka ho fetisisa tse fumanehang. Sena se etsa hore e loketse bakeng sa:
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Lisebelisoa tsa ho itšeha
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Ho jara likarolo
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Likarolo tse nepahetseng
b) Mokhoa o motle oa ho Wear le Abrasion Resistance
Ka lebaka la khabone e ngata,440Cbontšaho hanyetsa ka tsela e hlahelletseng ho apara bokahodimo, deformation ea moeli, le mokhathala oa mochini - e loketseng bakeng sa lits'ebetso tsa ho thella kapa ho potoloha.
c) Ho hanyetsana ha Corrosion ho Molemo
Le hoja e sa khone ho bola joalo ka litšepe tse 300 tse sa jeleng paate, 440C e sebetsa hantle libakeng tse senyang tse bobebe ho isa ho tse itekanetseng. E ka hanela:
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Mongobo
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Li-acid tsa lijo
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Lik'hemik'hale tse bonolo
Leha ho le joalo, ho joaloha e khothalletsoebakeng sa lisebelisoa tsa metsing kapa tse nang le chloride e phahameng ntle le phekolo e nepahetseng ea holim'a metsi.
d) Magnetic le mocheso-Pheko
440C kemakenetemaemong ohle mme e ka bathatafatsoa ka ho phekola mocheso o tloaelehileng, ho etsa hore ho be bonolo ho ikamahanya le mekhoa e fapaneng ea mechine le ea meralo.
3. Thepa ea Mechini ea 440C
| Thepa | Boleng (Tlhaloso, Boemo bo thatafalitsoeng) |
|---|---|
| Matla a tšepe | 760 - 1970 MPa |
| Kotulo Matla | 450 - 1860 MPa |
| Elongation at Break | 10 - 15% |
| Hardness (Rockwell HRC) | 58-60 |
| Modulus ea Elasticity | ~ 200 GPA |
| Botenya | 7.8g/cm³ |
Litekanyetso tsena li ka fapana ho latela kalafo ea mocheso le ts'ebetso ea tlhahiso.
4. Mokhoa oa Phekolo ea Mocheso
Tshebetso ea 440C tšepe e sa hloekang kee matlafalitsoe haholo ka kalafo ea mocheso. Ts'ebetso ka kakaretso e kenyelletsa:
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Ho thatafatsa: Ho futhumatsa ho 1010–1065°C (1850–1950°F)
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Ho tima: Ho tima oli kapa moea ho thatafatsa thepa
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Ho halefisa: Ka tloaelo e halefile ho 150–370°C (300–700°F) ho fokotsa brittleness le ho eketsa boima
Lipontšo tsa 440C tse nang le mochesoboholo bo thata le matla a babatsehang a mochine, e leng ea bohlokoa bakeng sa lisebelisoa tse nepahetseng le mekhoa e metle.
5. Likopo tse Tloaelehileng tsa 440C Stainless Steel
Ka lebaka la ho leka-lekana ha eona ho thata, ho hanyetsa ho roala, le ho hanyetsa kutu ka mokhoa o itekanetseng, 440C e fumanoa mefuteng e mengata ea likopo tse hlokahalang:
a) Lisebelisoa tsa ho Seha
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Mahare a ho buoa
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Mahare a lehare
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Lithipa tsa indasteri
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Sekere
b) Li-Bearings le Likarolo tsa Valve
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Li-ball bearings
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Litulo tsa li-valve le stems
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Nale rolara dibering
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Pivot pins
c) Sepakapaka le Tšireletso
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Likarolo tsa actuator ea lifofane
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Lithako tsa sebopeho
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Lisebelisoa tsa lithunya le lithunya
d) Lisebelisoa tsa Bongaka
440C's biocompatibility le bokhoni ba ho boloka likarolo tse bohale li etsa hore e tšoanelehe bakeng sa:
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Lisebelisoa tsa meno
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Lisebelisoa tsa ho buoa
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Li-implants tsa masapo (tse sa feleng)
e) Indasteri ea hlobo le lefu
Ho hanyetsa ha eona ho apara ho etsa hore e tšoanelehe bakeng sa:
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Mefuta ea ente ea polasetiki
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Ho theha ho shoa
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Lisebelisoa tsa lisebelisoa
sakysteele fana ka 440C tšepe e sa hloekang ka maqephe, lipoleiti, lithupa le mekoallo bakeng sa lisebelisoa tsena le tse ling. Ka traceability e felletseng le netefatso ea boleng,sakysteele netefatsa ts'ebetso e phahameng bakeng sa merero ea bohlokoa.
6. Meeli ea 440C Stainless Steel
Le ha 440C e le sesebelisoa se sebetsang hantle haholo, ha e loketse boemo bo bong le bo bong:
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Khanyetso ea kutu e lekanyelitsoelibakeng tsa leoatle kapa tse nang le chloride e ngata
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Matla a tlasebapisoa le limaraka tsa austenitic
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E ka ba brittleka boima bo phahameng haholo ntle le ha bo halefile ka hloko
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Ho sebetsa ho ka ba thataboemong bo thata
Bakeng sa lits'ebetso tse hlokang ductility e phahameng kapa corrosion resistance, 316 kapa duplex stainless steels e ka ba mekhoa e meng e betere.
7. Likhetho tsa ho Qetella Bokaholimo
440C tšepe e sa hloekang e ka fanoa ka mefuta e fapaneng ea ho qetela, ho latela litlhoko tsa tšebeliso ea ho qetela:
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Annealed: Bakeng sa machining bonolo le ho theha pele ho thatafala
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Fatše kapa e bentšitsoeng: Bakeng sa ho nepahala kapa ho sebetsa hantle
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E thatafetse ebile e halefile: Bakeng sa lisebelisoa le lisebelisoa tsa ho roala
At sakysteel, rea fanaCustomized surface finishes le litekanyobakeng sa 440C tšepe e sa hloekang ho lumellana le litlhoko tsa bareki.
8. 440C vs Litšepe Tse Ling
| Kereiti | Ho thatafala | Khanyetso ea Corrosion | Lisebelisoa |
|---|---|---|---|
| 304 | Tlase | E kgabane | Tšebeliso e akaretsang ea sebopeho |
| 316 | Tlase | E phahameng | Marine, lijo, pharma |
| 410 | E itekanetseng | E itekanetseng | Lisebelisoa tsa mantlha, li-fasteners |
| 440C | Phahameng | E itekanetseng | Lisebelisoa tse nepahetseng, li-bearings |
440C ke eonathata ka ho fetisisale boholoe mangangahar'a tsena, leha ho na le khanyetso e tlase ea kutu.
Qetello
440C tšepe e sa hloekangke khetho ea maemo a holimo haho thatafala ho ikhethang, ho hanyetsa ho senyehe, le ho hanyetsa kutu ho itekanetsenglia hlokahala. E sebelisoa haholo liindastering ho tloha ho aerospace le likoloi ho ea bongaka le lisebelisoa. Bokhoni ba eona ba ho thatafalloa ho isa maemong a feteletseng ha e ntse e boloka ts'ireletso e loketseng ea kutu e etsa hore e be e 'ngoe ea tse matla ka ho fetisisalitšepe tse sa jeleng paate tsa martensiticfumaneha.
Ho utloisisa litšobotsi tsa eona ho lumella baenjiniere le bareki ho etsa khetho e ntle ka ho fetisisa ea lisebelisoa bakeng sa likopo tse tšoarellang nako e telele, tse sebetsang hantle haholo.
Bakeng sa tšepe ea boleng bo holimo ea 440C e nang le litifikeiti tse felletseng le lits'ebeletso tse kenyellelitsoeng boleng joalo ka ho itšeha, ho bentša le kalafo ea mocheso,sakysteelke morekisi oa hau ea tšepahalang. Ikopanyesakysteelkajeno ho fumana quote kapa ho buisana ka litlhoko tsa morero oa hau.
Nako ea poso: Jul-28-2025