Kakaretso: Tataiso ena e akaretsa QT400-18 ferritic ductile iron, GB/T 1348 specs, e lekanang le machaba, boleng ba mochini, melemo, mefokolo, lits'ebetso le lintlha tsa CNC.
QT400-18 ke ferritic ductile iron grade e hlalositsoeng tlas'a GB/T 1348.
E na le li-ductility tse phahameng, boima bo botle ba mocheso o tlase le machinability, e sebelisoang haholo bakeng sa likarolo tsa cast tse hanyetsanang le tšusumetso.
QT400-18 ke Eng?
QT400-18 ke spheroidal graphite cast iron grade e boletsoeng ke Chinese standard GB/T 1348.
Mokhoa oa ho reha mabitso o latela litloaelo tse tloaelehileng bakeng sa limaraka tsa tšepe tsa China tsa ductile: "QT" e khetha tšepe e entsoeng ka graphite e spheroidal; 400 e bolela matla a fokolang a 400 MPa; mme 18 e emetse bonyane ba sekgahla sa 18%.
Microstructure ea eona e laoloa ke ferrite, e fanang ka thepa ea eona ea ho saena ductile le ts'ebetso e thata.
Bakeng sa kenyelletso e felletseng ea metheo ea tšepe ea ductile, lits'ebetso tsa tlhahiso le likarolo tse akaretsang, o ka hlahloba rona tataiso e feletseng ea tšepe ea ductile.
Sengoliloeng sena se tla shebana haholo le QT400-18 le ho qoba ho pheta-pheta litaba tse ka morao tsa tšepe ea ductile.
QT400-18 Standard & Equivalent International Grades
GB/T 1348 Tlhaloso ea QT400-18
QT400-18 e laoloa ke GB/T 1348, tekanyetso ea naha ea spheroidal graphite cast iron in China.
Tlhahlobo ea kamohelo bakeng sa kereiti ena e thehiloe haholo ts'ebetsong ea mochini ho fapana le sebopeho sa lik'hemik'hale tse tsitsitseng.
Phapang e fetotsoeng, QT400-18L, e boetse e hlalosoa ka har'a maemo ana ho fihlela litlhoko tse matlafalitsoeng tsa mocheso o tlase.
Global Equivalent Materials (ASTM / EN / ISO)
Hangata lienjineri tse sebetsang litšoantšong tse tšelang moeli li hloka ho etsa 'mapa oa QT400-18 ho ea ho limaraka tse tloaelehileng tsa machabeng.
Lipalo-palo tse amoheloang haholo li thathamisitsoe ka tlase bakeng sa litšupiso feela.
Kamohelo ea thepa ea ho qetela e lokela ho latela melao ea projeke kamehla.
- ASTM A536: 60-40-18
- EN 1563: EN-GJS-400-18, eo hape e tsejoang e le GGG40 ka mabitso a khale a DIN
QT400-18L ke mofuta oa mocheso o tlase o hlalosoang ho GB/T 1348.
E ke ke ea nkeloa sebaka ka ho toba ke maemo a tloaelehileng a QT400-18 kapa a tloaelehileng a machaba ntle le tlhahlobo e hlophisitsoeng ea moralo.
QT400-18 Mechanical & Thepa ea 'Mele
Tafole ea Ts'ebetso ea Mechini
Maemo a mochini a QT400-18 a lekoa ho li-bars tsa tlhahlobo tse tloaelehileng.
Ts'ebetso ea 'nete ea karolo e ka fetoha ho ipapisitsoe le botenya ba lebota, sekhahla sa ho pholisa le taolo ea ts'ebetso ea mochini.
| Thepa | Boleng bo Bonyane bo boletsoeng | Tloaelehileng Range |
| Tensile Matla | 400 MPa | 400–480 MPa |
| 0.2% Khatello ea Bopaki | 250 MPa | 250-300 MPa |
| Elongation | 18% | 18–24% |
| Brinell Hardness | — | 120-180 HBW |
| Kamore-Mocheso oa Tšusumetso e Thata | 14 J | 14–22 J |
Tekanyo e ka bang ea Mofuta oa Lik'hemik'hale
Motsoako oa lik'hemik'hale o sebetsa feela e le mokhoa oa ho laola mokhoa oa sebōpi. Kamohelo ea QT400-18 e itšetlehile ka thepa ea mochine, eseng meeli ea lik'hemik'hale.
Lisebelisoa tse fapaneng li fetola khabone, silicon le trace alloying elements ho tsitsisa spheroidization le ferrite matrix.
Mefuta e tloaelehileng ea mefuta e bontšitsoeng ka tlase:
- Khabone: 3.5% ~ 3.9%
- silicon: 2.2% ~ 2.8%
- Manganese: ≤0.30%
- Phosphorus: ≤0.07%
- Sebabole: ≤0.03%
Melemo ea Bohlokoa le Meeli ea QT400-18
Melemo ea Konokono
QT400-18 e hlahella har'a limaraka tsa tšepe tsa ferritic ductile bakeng sa ho tiea ha eona ho leka-lekaneng le ho sebetsa ha eona.
- Elongation e phahameng le ductility, bokhoni bo matla ba ho monya meroalo e matla
- Bongata bo tšepahalang ba mocheso o tlase ha bo bapisoa le limaraka tsa tšepe ea pearlitic ductile
- Mokhoa o motle oa ho fetola CNC, ho sila le ho tena
- Bokhoni bo botle ba ho fokotsa matla a vibration bakeng sa lisebelisoa tse potolohang le tsa hydraulic
- Boima bo itekanetseng bakeng sa marako a rarahaneng, a tšesaane ho isa ho a mahareng
Meeli & Maemo a sa Lokelang
QT400-18 ha se tekanyo ea tšepe ea ductile ea bokahohleng, 'me baqapi ba lokela ho qoba ho e sebelisa ho feta enfelopo ea eona ea ts'ebetso.
- Boima bo tlaase bo etsa hore e be khetho e fosahetseng bakeng sa likarolo tse tlas'a liaparo tse boima tsa abrasive
- Ha e khothalletsoe bakeng sa lits'ebetso tse hlokang khanyetso e phahameng ea mokhathala
- Botenya ba marako bo ama ka matla ho boloka ferrite; likarolo tse teteaneng li ka lahleheloa ke bolelele bo tiisitsoeng le ho tiea
- Welding e ka khoneha empa e hloka mekhoa e tiileng ea preheat le post-heat ho qoba ho phunyeha
QT400-18 Likopo tse Tloaelehileng tsa Indasteri
QT400-18 e khethoa ha ho hanyetsa tšusumetso le ductility li nka pele ho matla a phahameng kapa boima.
Hangata e totobatsoa bakeng sa likarolo tse nang le ts'okelo, ho sisinyeha kapa ho thothomela ka linako tse ling.Ithute haholoanyane ka rona. likarolo tsa mechine ea tšepe ea ductile.
Likarolo tse tloaelehileng tsa tšebeliso li kenyelletsa:
QT400-18 Casting & CNC Machining Notes
Lintlha tsa motheo tsa QT400-18
Consistant ferrite matrix ke sepheo sa mantlha sa boleng ba tlhahiso ea QT400-18.
Lihlopha tsa Foundry li shebana le mehato e 'meli ea bohlokoa ea ho laola: phekolo ea nodularization le inoculation.
Ente e nepahetseng e thibela ho thehoa ha serame le ho tsitsisa sebopeho sa graphite spheroid.
Shrinkage porosity le microshrinkage ke liphoso tse tloaelehileng bakeng sa tšepe ea ferritic ductile.
Lits'ebetso tsa li-gate le tsa riser li tlameha ho raloa ho khothaletsa ho tiea ha tataiso, haholo-holo libakeng tse nang le likarolo tse boima.
Pholiso e fosahetseng e tla hlahisa pearlite le ho fokotsa bolelele bo ka tlase ho 18% e hlokahalang.
CNC Machining Tips
Sebopeho se bonolo sa ferritic sa QT400-18 se fana ka ts'ebetso e tsitsitseng ea machining.
E etsa li-chips tse sa khaotseng ho e-na le lerōle le hlabang, le theolang seaparo sa lisebelisoa ha se bapisoa le tšepe e thata ea pearlitic ductile.
- Lisebelisoa tsa carbide tse sa koahetsoeng li sebetsa hantle bakeng sa ho fetola ka kakaretso le ho sila
- Lebelo la ho itšeha le ka beoa ka mokhoa o itekanetseng ho feta tšepe e bohlooho
- Liphekolo tsa bokaholimo tse kang ho penta, ho roala phofo kapa ho kenya oli li sebelisoa haholo bakeng sa ts'ireletso ea kutu kamora ho sebetsa.
Haeba u batla lisebelisoa tsa tšepe tsa ductile tsa QT400-18 tse nang le machining a CNC, u ka hlahloba mefuta ea lihlahisoa tsa rona tsa ductile iron casting.
QT400-18 vs QT450-10 Ductile Iron
QT400-18 le QT450-10 ke limaraka tse peli tse ferekaneng khafetsa tsa tšepe ea GB ductile.
Tafole e ka tlase e hlakisa liphapang tsa bona bakeng sa khetho ea thepa.
| Paramethara | QT400-18 | QT450-10 |
| Matla a Tlase a Tensile | 400 MPa | 450 MPa |
| Elongation e fokolang | 18% | 10% |
| Sebopeho sa Matrix | Ferritic e felletseng | Ferritic-pearlitic |
| Boima ba Mocheso o Tlase | Betere | Tlase |
| Hardness Range | 120-180 HBW | 160-210 HBW |
| Molemo ka ho fetisisa Bakeng sa | Tšusumetso, mocheso o tlase oa tšebeletso | Matla a itekanetseng, likarolo tse akaretsang tsa sebopeho |
Khetha QT400-18 ha ho lelefatsa le ho monya ho bohlokoa.
QT450-10 e ratoa bakeng sa lits'ebetso tse hlokang matla a holimo moo litlhoko tsa ductility li seng thata haholo.
FAQ
Na QT400-18 e tšoana le tšepe ea 60-40-18 ea ductile?
QT400-18 e ts'oaroa ka bophara joalo ka Sechaena se lekanang le ASTM A536 60-40-18, leha ho le joalo li hlalosoa tlasa maemo a arohaneng.
'Mapa ona o sebetsa feela bakeng sa tlhahlobo ea pele ea lisebelisoa.
Litekanyetso tsohle tsa kamohelo li tlameha ho latela maemo a projeke a boletsoeng.
Na QT400-18 e ka chesetsoa?
Ho tjheseletsa ho a kgoneha ka botekgeniki, empa ho hloka taolo e hlokolosi ya tshebetso.
Ho futhumatsa le ho pholisa ho laoloang hoa tlama ho qoba libaka tse brittle le ho phatloha.
Manonyeletso a weld hangata a tla lahleheloa ke karolo ea ductility ea thepa ea motheo.
Phapano ke efe lipakeng tsa QT400-18 le QT400-18L?
QT400-18L ke mofuta oa mocheso o tlase.
E boloka boleng bo netefalitsoeng ba Charpy maemong a mocheso a tlase a liteko bakeng sa lisebelisoa tse batang tsa tikoloho.
QT400-18 e tloaelehileng e akaretsa feela litlhoko tse amang mocheso oa kamore.
Na QT400-18 e loketse likarolo tse manganga?
Ka kakaretso ha ho joalo. Matrix ea eona e bonolo ea ferritic e fana ka khanyetso e fokolang ea abrasion.
Bakeng sa lisebelisoa tsa ho roala, tšepe ea ductile e thata haholo, tšepe ea ductile kapa alloy cast iron e lokela ho nkoa sebakeng sa eona.
