Chidule: Bukuli likuphatikiza chitsulo cha QT400-18 ferritic ductile, mafotokozedwe ake a GB/T 1348, zofanana zapadziko lonse lapansi, makina amakina, zabwino, zolephera, ntchito ndi zolemba za CNC zoponya.
QT400-18 ndi ferritic ductile iron giredi yofotokozedwa pansi pa GB/T 1348.
Imakhala ndi ductility kwambiri, kulimba kwa kutentha pang'ono komanso machinability, omwe amagwiritsidwa ntchito kwambiri popanga zida zosagwira ntchito.
Kodi QT400-18 ndi chiyani?
QT400-18 ndi spheroidal graphite kuponyedwa chitsulo kalasi yotchulidwa ndi Chinese muyezo GB/T 1348.
Dongosolo la mayina limatsata malamulo okhazikika azitsulo zachitsulo zachi China: "QT" imatchula chitsulo cha spheroidal graphite cast; 400 imatanthawuza mphamvu yocheperako ya 400 MPa; ndipo 18 ikuyimira kuchuluka kwa kutalika kwa 18%.
Kapangidwe kake kakang'ono kamene kamayang'aniridwa ndi ferrite, yomwe imapangitsa kuti zinthuzo zikhale ndi siginecha yake komanso kugwira ntchito mwamphamvu.
Kuti mumve zambiri pazoyambira zachitsulo cha ductile, njira zopangira ndi magulu onse, mutha kuwunikanso zathu wathunthu ductile iron guide.
Nkhaniyi ingoyang'ana kwambiri pa QT400-18 ndikupewa kubwereza zomwe zili kumbuyo kwachitsulo cha ductile.
QT400-18 Standard & Equivalent International Grades
Mbiri ya GB/T 1348 ya QT400-18
QT400-18 imayang'aniridwa ndi GB/T 1348, muyezo wapadziko lonse wachitsulo cha spheroidal graphite ku China.
Kuyang'anira kuvomereza kwa giredi iyi kumatengera magwiridwe antchito amakina m'malo mopanga mankhwala osakhazikika.
Mtundu wosinthidwa, QT400-18L, umatanthauziridwanso mkati mwa muyezo uwu kuti ukwaniritse zofunikira pakutentha kotsika.
Global Equivalent Materials (ASTM / EN / ISO)
Akatswiri opanga zojambula zodutsa malire nthawi zambiri amafunikira kupanga mapu a QT400-18 kuti akhale ndi magiredi odziwika apadziko lonse lapansi.
Zofanana zovomerezedwa kwambiri zalembedwa pansipa kuti zingogwiritsidwa ntchito kokha.
Kuvomerezedwa kwazinthu zomaliza kuyenera kutsatira nthawi zonse zomwe polojekitiyi imayang'anira.
- ASTM A536: 60-40-18
- TS EN 1563: EN-GJS-400-18, yomwe imadziwikanso kuti GGG40 m'matchulidwe akale a DIN
QT400-18L ndiye kutsika kwa kutentha komwe kumatanthauzidwa mu GB/T 1348.
Sizingasinthidwe mwachindunji ndi muyezo wa QT400-18 kapena zofanana zapadziko lonse lapansi popanda kuwunika kovomerezeka.
QT400-18 Mechanical & Physical Properties
Mechanical Performance Table
Miyezo yamakina a QT400-18 imayesedwa pamipiringidzo yoyeserera.
Kugwira ntchito kwenikweni kumatha kusintha kutengera makulidwe a khoma, kuziziritsa komanso kuwongolera njira zoyambira.
| Katundu | Mtengo Wochepera Wotchulidwa | Mtundu Wofananira |
| Kulimbitsa Mphamvu | 400 MPa | 400-480 MPa |
| 0.2% Umboni Wopanikizika | 250 MPa | 250-300 MPa |
| Elongation | 18% | 18-24% |
| Brinell Kuuma | — | 120-180 HBW |
| Chipinda-Kutentha Impact Kulimba | 14 j | 14-22 J |
Pafupifupi Chemical Composition Range
Kupangidwa kwa Chemical kumangogwira ntchito ngati chiwongolero chowongolera m'ng'anjo. Kulandira QT400-18 kumachokera kuzinthu zamakina, osati malire a mankhwala.
Zoyambira zosiyanasiyana zimasintha kaboni, silicon ndi trace alloying elements kuti zikhazikike spheroidization ndi ferrite matrix.
Mitundu yamitundu yofananira ikuwonetsedwa pansipa:
- Mpweya: 3.5% ~ 3.9%
- silicon: 2.2% ~ 2.8%
- Manganese: ≤0.30%
- Phosphorous: ≤0.07%
- Sulfure: ≤0.03%
Ubwino Wofunika & Zochepa za QT400-18
Ubwino Wachikulu
QT400-18 ndiyodziwika bwino pakati pa magiredi achitsulo a ferritic ductile chifukwa cha kulimba kwake komanso kugwira ntchito kwake.
- Kutalikirana kwakukulu ndi ductility, mphamvu yamphamvu yotengera katundu wosinthika
- Kulimba kodalirika kocheperako poyerekeza ndi magiredi achitsulo a pearlitic ductile
- Makina abwino kwambiri a CNC kutembenuka, mphero ndi wotopetsa
- Kuthekera kwabwino kwa kugwedera kwa zida zozungulira komanso zama hydraulic
- Kutsika pang'ono kwa makhoma ovuta, owonda mpaka apakatikati
Zochepa & Zosayenerera
QT400-18 si chitsulo chapadziko lonse lapansi, ndipo opanga sayenera kuyigwiritsa ntchito kupyola mu envulopu yake yogwirira ntchito.
- Kuuma kwapansi kumapangitsa kuti zikhale zosasankha bwino pazigawo zokhala ndi ma abrasive abrasive
- Osavomerezeka pamapulogalamu omwe amafunikira kukana kutopa kwambiri
- Makulidwe a khoma amakhudza kwambiri kusungidwa kwa ferrite; zigawo zokhuthala zitha kutaya kutalika kotsimikizika ndi kulimba
- Kuwotcherera ndi kotheka koma kumafuna njira zowotchera kwambiri komanso pambuyo pa kutentha kuti mupewe kusweka
QT400-18 Ntchito Zofananira Zamakampani
QT400-18 imasankhidwa pamene kukana kwamphamvu ndi ductility kumakhala patsogolo kuposa mphamvu yayikulu kapena kuuma.
Nthawi zambiri amatchulidwa pazigawo zomwe zimakumana ndi kugwedezeka, kugwedezeka kapena kulemetsa kwakanthawi. Phunzirani zambiri za athu ductile chitsulo makina zigawo.
Zomwe zimagwiritsidwa ntchito ndizo:
QT400-18 Casting & CNC Machining Notes
Zofunikira za QT400-18
Consistent ferrite matrix ndiye chandamale chapakatikati pakupanga QT400-18.
Magulu a Foundry amayang'ana kwambiri njira ziwiri zowongolera: chithandizo cha nodularization ndi inoculation.
Katemera woyenera amalepheretsa kuzizira mapangidwe ndi kukhazikika graphite spheroid mawonekedwe.
Shrinkage porosity ndi microshrinkage ndizovuta zomwe zimachitika pachitsulo cha ferritic ductile iron.
Ma gating ndi ma riser ayenera kupangidwa kuti alimbikitse kukhazikika kolunjika, makamaka kumadera olemera.
Kuzizira kosayenera kudzayambitsa pearlite ndikuchepetsa kutalika pansi pa 18%.
CNC Machining Malangizo
The soft ferritic microstructure ya QT400-18 imapereka makina okhazikika.
Zimapanga tchipisi tosatha m'malo mwa fumbi la abrasive, zomwe zimachepetsa kuvala kwa zida poyerekeza ndi chitsulo cholimba cha pearlitic ductile.
- Zoyika za carbide zosavala zimagwira ntchito bwino pakutembenuza ndi mphero
- Liwiro lodula likhoza kukhazikitsidwa mozama kuposa chitsulo chotuwira
- Zochizira pamwamba monga kupenta, zokutira ufa kapena kuthira mafuta zimagwiritsidwa ntchito kwambiri poteteza dzimbiri pambuyo popanga makina.
Ngati mukufufuza zitsulo zamtundu wa QT400-18 ndi CNC zomaliza, mutha yang'anani mitundu yathu yamtundu wa ductile iron casting.
QT400-18 vs QT450-10 Ductile Iron
QT400-18 ndi QT450-10 ndi magiredi awiri omwe amasokonezeka pafupipafupi a GB ductile iron.
Gome ili m'munsili likufotokozera kusiyana kwawo pakusankha zinthu.
| Parameter | QT400-18 | Chithunzi cha QT450-10 |
| Mphamvu Zochepa Zochepa | 400 MPa | 450 MPa |
| Minimum Elongation | 18% | 10% |
| Matrix Structure | Ferritic kwathunthu | Ferritic-pearlitic |
| Kutentha Kwambiri Kwambiri | Zabwino | Pansi |
| Hardness Range | 120-180 HBW | 160-210 HBW |
| Zabwino Kwambiri | Mphamvu, ntchito yotsika kutentha | Mphamvu zolimbitsa thupi, zigawo zamagulu |
Sankhani QT400-18 pamene elongation ndi mphamvu mayamwidwe ndi zofunika.
QT450-10 imayamikiridwa pamapulogalamu omwe amafunikira mphamvu zolimba kwambiri pomwe zofuna za ductility ndizochepa kwambiri.
FAQ
Kodi QT400-18 ndi yofanana ndi 60-40-18 ductile iron?
QT400-18 imatengedwa kwambiri ngati yaku China yofanana ndi ASTM A536 60-40-18, komabe amatanthauzidwa pamiyezo yosiyana.
Mapuwa amagwira ntchito powunika zinthu zoyambira.
Njira zonse zovomerezeka ziyenera kutsata zomwe polojekitiyi ikufuna.
Kodi QT400-18 ikhoza kuwotcherera?
Kuwotcherera ndi kotheka mwaukadaulo, koma pamafunika kuwongolera mosamala.
Kutenthetsa ndi kuziziritsa koyendetsedwa ndikofunikira kuti mupewe kuwonongeka ndi kusweka.
Ma weld joints nthawi zambiri amataya gawo la ductility lazoyambira.
Kodi pali kusiyana kotani pakati pa QT400-18 ndi QT400-18L?
QT400-18L ndi yotsika kutentha.
Imasunga zikhalidwe zotsimikizika za Charpy pamatenthedwe otsika oyesera a zida zozizira zachilengedwe.
Standard QT400-18 imangokhudza zofunikira za kutentha kwa chipinda.
Kodi QT400-18 ndiyoyenera magawo osamva kuvala?
Nthawi zambiri ayi. Matrix ake ofewa a ferritic amapereka kukana kwa abrasion pang'ono.
Pogwiritsa ntchito kuvala, chitsulo cholimba kwambiri cha ductile, chitsulo chosungunuka kapena chitsulo cha alloy cast chiyenera kuganiziridwa m'malo mwake.
