Pfupiso: Gwaro iri rinobata QT400-18 ferritic ductile iron, yayo GB/T 1348 specs, yakaenzana nedzimwe nyika, mechanical values, zvakanakira, zvisingakwanisi, maapplication uye CNC yekukanda manotsi.
QT400-18 is a ferritic ductile iron giredhi inotsanangurwa pasi peGB/T 1348.
Iyo inoratidzira yakakwira ductility, yakanaka yakaderera-tembiricha kuoma uye machinability, inoshandiswa zvakanyanya kune inokanganisa-inodzivirira kukanda zvikamu.
Chii chinonzi QT400-18?
QT400-18 is spheroidal graphite cast iron giredhi inotsanangurwa neChinese standard GB/T 1348.
Iyo yekupa mazita inoteedzera zvibvumirano zveChinese ductile iron mamakisi: "QT" inoratidzira spheroidal graphite cast iron; 400 inoreva hushoma hwekusimba simba re400 MPa; uye gumi nemasere inomiririra mwero wepakati wekuwedzera we18%.
Iyo microstructure yayo inotongwa neferrite, iyo inopa izvo zvinyorwa siginecha yayo ductile uye yakaoma kuita.
Kuti uwane sumo yakazara kune ductile iron basic, maitiro ekugadzira uye general class, unogona kuongorora yedu yakakwana ductile iron guide.
Ichi chinyorwa chichatarisa zvakanyanya paQT400-18 uye kudzivirira kudzokorora general ductile iron kumashure zvemukati.
QT400-18 Standard & Equivalent International Grades
GB/T 1348 Tsanangudzo yeQT400-18
QT400-18 inodzorwa neGB/T 1348, chiyero chenyika che spheroidal graphite cast iron muChina.
Kubvumwa kwekuongorora kwegiredhi iri kunonyanya kuenderana nekuita kwemakanika pane kuisirwa kemikari yakagadzirwa.
Yakagadziridzwa musiyano, QT400-18L, inotsanangurwa zvakare mukati meiyi chiyero kuti isangane neyakagadziridzwa yakaderera-tembiricha maitiro zvinodiwa.
Global Equivalent Materials (ASTM / EN / ISO)
Mainjiniya anoshanda pamadhirowa emuchinjiko anowanzoda kumepu QT400-18 kumagiredhi anozivikanwa epasi rese.
Izvo zvakanyanya kugamuchirwa zvakaenzana zvakanyorwa pazasi kuti zvingoreve chete.
Kugamuchirwa kwezvinhu zvekupedzisira kunofanirwa kugara kuchitevera zvinongedzo zveprojekiti.
- ASTM A536: 60-40-18
- EN 1563: EN-GJS-400-18, inozivikanwawo seGGG40 mune yekare DIN mazita.
QT400-18L ndiyo yakaderera-tembiricha musiyano inotsanangurwa muGB/T 1348.
Iyo haigone kutsiviwa zvakananga neyakajairwa QT400-18 kana yakajairwa yepasirese yakaenzana pasina dhizaini dhizaini.
QT400-18 Mechanical & Physical Properties
Mechanical Performance Tafura
Mechanical values yeQT400-18 inoedzwa pamabhawa akajairwa ebvunzo.
Chaiyo chikamu chekuita chinogona kusimuka zvichibva pakukanda madziro ukobvu, kutonhora chiyero uye foundry process control.
| Property | Yakatsanangurwa Minimum Value | Typical Range |
| Tensile Simba | 400 MPa | 400–480 MPa |
| 0.2% Chiratidzo Kushungurudzika | 250 MPa | 250–300 MPa |
| Elongation | 18% | 18–24% |
| Brinell Hardness | — | 120–180 HBW |
| Room-Temperature Impact Toughness | 14 J | 14–22 J |
Yakakwana Chemical Composition Range
Kemikari yakagadzirwa inoshanda chete senge in-choto process control reference. Kugamuchirwa kweQT400-18 kunobva pamagetsi emagetsi, kwete miganhu yemakemikari.
Akasiyana mafekitori anogadzirisa kabhoni, silicon uye inoteedzera alloying zvinhu kudzikamisa spheroidization uye ferrite matrix.
Marudzi ekuumbwa anoratidzwa pazasi:
- Kabhoni: 3.5% ~ 3.9%
- Silicon: 2.2% ~ 2.8%
- Manganese: ≤0.30%
- Phosphorus: ≤0.07%
- Sarufa: ≤0.03%
Yakakosha Yakanakira & Mipimo yeQT400-18
Core Benefits
QT400-18 inomira pakati peferritic ductile iron mamakisi nekuda kwekusimba kwayo uye kushanda kwayo.
- Yakakwira elongation uye ductility, simba rakasimba rekutora simba rinoita mitoro
- Kuvimbika kwakadzika-tembiricha kuoma kana ichienzaniswa nepearlitic ductile iron mamakisi
- Yakanakisa machinability yeCNC kutendeuka, kugaya uye kufinha
- Yakanaka vibration damping kugona yekutenderera uye hydraulic michina
- Kukandwa kuri pakati nepakati kwekukandwa kwemadziro kwakaomarara, kutete-kusvika-pakati
Kuganhurirwa & Zvisina Kufanira Mamiriro ezvinhu
QT400-18 haisi yepasi rose ductile iron giredhi, uye vagadziri vanofanirwa kudzivirira kuishandisa kupfuura emvuropu yayo yekuita.
- Kuomarara kwepasi pasi kunoita kuti ive sarudzo isina kunaka kune zvikamu pasi pekupfeka zvinorema
- Hazvikurudzirwe kune maapplication anoda yakanyanya kubata kuneta kuramba
- Ukobvu hwemadziro hunokanganisa zvakanyanya kuchengetedza ferrite; zvikamu zvakakora zvinogona kurasikirwa nehurefu hwakavimbiswa uye kusimba
- Welding inogoneka asi inoda yakasimba preheat uye post-heat maitiro kuti usatsemuka
QT400-18 Yakajairika Industrial Applications
QT400-18 inosarudzwa kana kukanganisa kuramba uye ductility inotora pekutanga pamusoro pesimba rakakura kana kuoma.
Inowanzo kutsanangurwa kune zvikamu zvinosangana nekuvhunduka, kuzunguzika kana kuremerwa pano neapo. Dzidza zvakawanda nezvedu ductile iron mechanical parts.
Mamiriro ekushandisa anosanganisira:
QT400-18 Kukandira & CNC Machining Notes
Foundry Kufunga kweQT400-18
Consistent ferrite matrix ndiyo yakakosha yemhando chinangwa cheQT400-18 kugadzirwa.
Zvikwata zveFoundry zvinotarisa pamatanho maviri akakosha ekudzora: nodularization kurapwa uye inoculation.
Inoculation yakakodzera inodzivirira kutonhora kuumbwa uye inodzikamisa graphite spheroid chimiro.
Shrinkage porosity uye microshrinkage zvinowanzoitika kukanganisa kune ferritic ductile iron.
Magedhi uye masisitimu ekusimudza anofanirwa kugadzirwa kuti akurudzire kusimba kwegwaro, kunyanya kunzvimbo dzinorema-chikamu.
Kutonhodza kwakashata kuchaunza pearlite uye kuderedza kureba pasi pe18% inodiwa.
CNC Machining Mazano
Iyo yakapfava ferritic microstructure yeQT400-18 inopa yakagadzikana machining kuita.
Inogadzira machipisi anoenderera panzvimbo peguruva rinoputika, iro rinodzikisira kupfeka kwezvishandiso zvichienzaniswa nekuoma pearlitic ductile iron.
- Uncoated carbide inserts inoshanda zvakanaka pakutendeuka nekugaya
- Kucheka kumhanya kunogona kuiswa zvine mwero kupfuura grey cast iron
- Kurapa kwepamusoro senge pendi, kupeta poda kana kuiswa kwemafuta kunoshandiswa zvakanyanya kudzivirira ngura mushure mekugadzira.
Kana iwe uri kutsvaga tsika QT400-18 ductile iron castings neCNC yapera machining, unogona ongorora yedu ductile iron casting product range.
QT400-18 vs QT450-10 Ductile Iron
QT400-18 uye QT450-10 maviri anowanzo kuvhiringika GB ductile iron mamakisi.
Tafura iri pasi apa inojekesa kusiyana kwavo pakusarudza zvinhu.
| Parameter | QT400-18 | QT450-10 |
| Minimum Tensile Simba | 400 MPa | 450 MPa |
| Minimum Elongation | 18% | 10% |
| Matrix Structure | Zvizere ferritic | Ferritic-pearlitic |
| Yakaderera-Tembiricha Kuoma | Zvirinani | Lower |
| Hardness Range | 120–180 HBW | 160–210 HBW |
| Best For | Impact, kuderera-kupisa sevhisi | Simba riri pakati nepakati, general structural parts |
Sarudza QT400-18 apo kurebesa uye kukanganisa kunyura kwakakosha.
QT450-10 inosarudzwa kune maapplication anoda yakakwirira tensile simba uko ductility zvinodiwa zvine kushoma.
FAQ
Ko QT400-18 yakafanana ne60-40-18 ductile iron?
QT400-18 inobatwa zvakanyanya seyakaenzana neChinese yeASTM A536 60-40-18, asi ivo vanotsanangurwa pasi pezviyero zvakasiyana.
Iyi mepu inoshanda chete yekutanga yekuongorora zvinhu.
Yese maitiro ekugamuchirwa anofanirwa kutevedzera chiyero cheprojekiti chakatsanangurwa.
QT400-18 inogona kugadzirwa here?
Welding inogoneka nehunyanzvi, asi inoda kungwarira maitiro ekutonga.
Preheating uye kudzorwa kutonhora kunosungirwa kudzivirira brittle zones uye kuputika.
Weld majoini anowanzo rasikirwa nechikamu cheiyo base material's ductility.
Ndeupi musiyano uripo pakati peQT400-18 neQT400-18L?
QT400-18L ndiyo yakaderera-tembiricha musiyano.
Iyo inochengetedza yakavimbiswa Charpy maitiro ehutsika pane yakadzika bvunzo tembiricha yeinotonhora-yemamiriro emidziyo.
Yakajairwa QT400-18 inongovhara kamuri-tembiricha inokanganisa zvinodiwa.
Ko QT400-18 yakakodzera kupfekwa-inodzivirira zvikamu?
Kazhinji kwete. Yayo yakapfava ferritic matrix inopa mashoma abrasion kuramba.
Zvekupfeka maapplication, yakakwirira-kuomarara ductile iron, austempered ductile iron kana alloy cast iron inofanirwa kutariswa panzvimbo.
