Hōʻuluʻulu manaʻo: Hoʻopili kēia alakaʻi i ka QT400-18 ferritic ductile iron, kona GB/T 1348 specs, international equivalents, mechanical values, advantages, limitations, applications and CNC casting note.
ʻO QT400-18 kahi papa hao ductile ferritic i wehewehe ʻia ma lalo o GB/T 1348.
Hōʻike ia i ka ductility kiʻekiʻe, ka paʻakikī haʻahaʻa haʻahaʻa maikaʻi a me ka machinability, hoʻohana nui ʻia no nā mea hoʻoheheʻe i ka hopena.
He aha ka QT400-18?
ʻO QT400-18 kahi papa hao graphite spheroidal i kuhikuhi ʻia e ka maʻamau Kina GB/T 1348.
Hoʻopili ka ʻōnaehana inoa i nā kuʻina maʻamau no nā māka hao ductile Kina: "QT" kuhikuhi i ka hao graphite spheroidal; 400 e pili ana i ka ikaika tensile haʻahaʻa o 400 MPa; a ʻo 18 e hōʻike ana i ka liʻiliʻi elongation rate o 18%.
ʻO kona microstructure ka mea i hoʻomalu ʻia e ka ferrite, ka mea e hāʻawi i ka mea i kona inoa ductile a me ka hana paʻakikī.
No ka hoʻolauna piha ʻana i nā kumu hao ductile, nā kaʻina hana a me ka hoʻohālikelike maʻamau, hiki iā ʻoe ke nānā i kā mākou alakaʻi hao ductile piha.
E kālele pono kēia ʻatikala i ka QT400-18 a pale i ka hana hou ʻana i ka maʻiʻo ductile hao.
QT400-18 Nā Papa Kūlana & Kūlike
GB/T 1348 Hōʻike o QT400-18
Hoʻoponopono ʻia ʻo QT400-18 e GB / T 1348, ke kūlana aupuni no ka spheroidal graphite cast iron ma Kina.
Hoʻokumu nui ʻia ka nānā ʻana i ka ʻae ʻana no kēia papa ma ka hana ʻenehana ma mua o ka hoʻohui ʻana i nā kemika paʻa.
Ua wehewehe ʻia kekahi ʻano hoʻololi, QT400-18L, i loko o kēia maʻamau e hoʻokō i nā koi o ka hopena haʻahaʻa haʻahaʻa.
Mea Kūlike honua (ASTM / EN / ISO)
Pono nā ʻenekinia e hana ana i nā kaha kiʻi palena ʻāina e palapala ʻāina i ka QT400-18 i nā māka honua.
ʻO nā mea like i ʻae nui ʻia e helu ʻia ma lalo no ke kuhikuhi wale ʻana.
Pono ka ʻae ʻana i nā mea hope e hahai mau i nā kikoʻī hoʻomalu o ka papahana.
- ASTM A536: 60-40-18
- EN 1563: EN-GJS-400-18, i ʻike ʻia ʻo GGG40 i ka inoa DIN kahiko.
ʻO QT400-18L ka ʻokoʻa haʻahaʻa haʻahaʻa i wehewehe ʻia ma GB/T 1348.
ʻAʻole hiki ke hoʻololi pololei ʻia e ka QT400-18 maʻamau a i ʻole nā mea like honua maʻamau me ka ʻole o ka loiloi hoʻolālā.
QT400-18 Mechanical & Kino Pono
Papa Hana Hana Mechanical
Hoʻāʻo ʻia nā waiwai mīkini no QT400-18 ma nā pahu hoʻokolohua maʻamau.
Hiki ke hoʻololi ʻia ka hana ʻāpana maoli ma muli o ka mānoanoa o ka pā hoʻolei ʻana, ka nui o ka hoʻoilo a me ke kaʻina hana foundry.
| Waiwai | Waiwai liʻiliʻi loa | Laulā maʻamau |
| Ikaika U'i | 400 MPa | 400–480 MPa |
| 0.2% Hōʻike Koʻikoʻi | 250 MPa | 250–300 MPa |
| ʻO ka lōʻihi | 18% | 18–24% |
| ʻO Brinell Hardness | — | 120–180 HBW |
| Paʻa Paʻa Paʻa-Panahana | 14 J | 14–22 J |
Kokoke Kokoke Kimia Hui
Hoʻohana ʻia ka haku melemele ma ke ʻano he kuhikuhi hoʻomalu kaʻina hana i loko o ka umu. Hoʻokumu ʻia ka ʻae ʻana o QT400-18 i nā waiwai mechanical, ʻaʻole nā palena kemika.
Hoʻoponopono nā mea hoʻokumu ʻokoʻa i ke kalapona, silika a me ka trace alloying element e hoʻopaʻa i ka spheroidization a me ka ferrite matrix.
Hōʻike ʻia nā pae haku mele maʻamau ma lalo nei.
- Kalapona: 3.5% ~ 3.9%
- Silikino: 2.2% ~ 2.8%
- Manganese: ≤0.30%
- ʻO ka Phosphorus: ≤0.07%
- Sulfur: ≤0.03%
Nā Pōmaikaʻi Nui a me nā palena o QT400-18
Pōmaikaʻi kumu
Kūlana ʻo QT400-18 ma waena o nā māka hao ductile ferritic no kona paʻakikī kaulike a me ka hana.
- ʻO ka elongation kiʻekiʻe a me ka ductility, ka mana ikaika e hoʻopaʻa i nā ukana hopena ikaika
- ʻO ka ikaika haʻahaʻa haʻahaʻa hilinaʻi e hoʻohālikelike ʻia me nā māka hao ductile pearlitic
- ʻO ka machinability maikaʻi loa no ka huli ʻana o CNC, ka wili a me ka ʻoluʻolu
- ʻO ka hiki ke hoʻoheheʻe haʻalulu maikaʻi no ka ʻōwili a me nā mea hydraulic
- Hiki ke hoʻolei haʻahaʻa no ka hoʻolei ʻia ʻana o ka pā paʻakikī, lahilahi-a-medium
Nā palena a me nā hiʻohiʻona kūpono ʻole
ʻAʻole ʻo QT400-18 kahi papa hao ductile honua, a pono e pale nā mea hoʻolālā i ka hoʻohana ʻana ma waho o kāna envelop hana.
- ʻO ka paʻakikī o ka ʻili haʻahaʻa he koho maikaʻi ʻole ia no nā ʻāpana ma lalo o ka lole abrasive kaumaha
- ʻAʻole ʻōlelo ʻia no nā noi e koi ana i ke kūpaʻa luhi hoʻopili kiʻekiʻe
- Pili ka mānoanoa o ka pā i ka paʻa ferrite; hiki i nā ʻāpana mānoanoa ke nalowale i ka elongation a me ka paʻakikī
- Hiki ke wiliwili akā pono nā kaʻina hana preheat koʻikoʻi a ma hope o ka wela e pale aku ai i ka pohā
QT400-18 Nā Hana Hana Maʻamau
Koho ʻia ʻo QT400-18 inā ʻoi aku ka nui o ke kūpaʻa a me ka ductility ma mua o ka ikaika kiʻekiʻe a i ʻole ka paʻakikī.
Hōʻike maʻamau ia no nā ʻāpana i ʻike i ka haʻalulu haʻalulu, haʻalulu a i ʻole ka hoʻonui ʻana i kekahi manawa. E aʻo hou e pili ana i kā mākou ductile hao ʻāpana mechanical.
Loaʻa nā hihia hoʻohana maʻamau:
QT400-18 Casting & CNC Machining Notes
Nā Manaʻo Foundry no QT400-18
ʻO ka matrix ferrite maʻamau ka pahuhopu koʻikoʻi no ka hana QT400-18.
Ke nānā aku nei nā hui Foundry i ʻelua mau ʻanuʻu koʻikoʻi: ka mālama nodularization a me ka inoculation.
ʻO ka inoculation kūpono e pale i ka hoʻokumu ʻana o ke anuanu a hoʻopaʻa i ke ʻano graphite spheroid.
ʻO ka porosity Shrinkage a me ka microshrinkage nā hemahema maʻamau no ka hao ductile ferritic.
Pono e hoʻolālā ʻia nā ʻōnaehana Gating a me riser e hoʻoikaika i ka paʻa ʻana o ke kuhikuhi, ʻoi aku hoʻi no nā wahi ʻāpana kaumaha.
ʻO ka hoʻoluʻu kūpono ʻole e hoʻolauna i ka pearlite a hōʻemi i ka elongation ma lalo o ka 18% koi.
Nā Manaʻo Manaʻo CNC
Hāʻawi ka microstructure ferritic palupalu o QT400-18 i ka hana machining paʻa.
Hoʻokumu ia i nā ʻōpala mau ma kahi o ka lepo abrasive, kahi e hoʻohaʻahaʻa ai i ka ʻaʻahu mea hana i hoʻohālikelike ʻia me ka hao ductile pearlitic paʻakikī.
- Hana maikaʻi nā mea hoʻokomo carbide uncoated no ka huli ʻana a me ka wili maʻamau
- Hiki ke hoʻonohonoho ʻia ka māmā oki ma mua o ka hao hina hina
- Hoʻohana nui ʻia nā ʻano lapaʻau e like me ka pena pena, ka pauka a i ʻole ka hinu impregnation no ka pale ʻana i ka corrosion ma hope o ka mīkini.
Inā ʻoe e ʻimi nei i ka QT400-18 ductile iron castings me ka CNC hoʻopau mīkini, hiki iā ʻoe ke e ʻimi i kā mākou huahana hoʻoheheʻe hao ductile.
QT400-18 vs QT450-10 hao hao
ʻO QT400-18 a me QT450-10 ʻelua mau māka hao ductile i huikau pinepine ʻia.
Hōʻike ka papa ma lalo i kā lākou ʻokoʻa no ke koho ʻana i nā mea.
| ʻĀpana | QT400-18 | QT450-10 |
| ʻO ka ikaika ʻoi loa | 400 MPa | 450 MPa |
| ʻO ka lōʻihi liʻiliʻi | 18% | 10% |
| Hoʻokumu ʻia matrix | Ferritic piha | Ferritic-pearlitic |
| Haʻahaʻa-Mahana ʻOʻoleʻa | ʻoi aku ka maikaʻi | lalo |
| Paʻa paʻakikī | 120–180 HBW | 160–210 HBW |
| Pono No | Ka hopena, lawelawe wela haʻahaʻa | Ka ikaika haʻahaʻa, nā ʻāpana hana maʻamau |
E koho i ka QT400-18 ke koʻikoʻi ka elongation a me ka absorption hopena.
Manaʻo ʻia ʻo QT450-10 no nā noi e koi ana i ka ikaika tensile kiʻekiʻe kahi i ʻoi aku ka paʻakikī o nā koi ductility.
FAQ
Ua like anei ka QT400-18 me ka hao ductile 60-40-18?
Manaʻo nui ʻia ʻo QT400-18 e like me ka China e like me ASTM A536 60-40-18, akā ua wehewehe ʻia lākou ma lalo o nā kūlana ʻokoʻa.
Hoʻohana ʻia kēia palapala palapala no ka nānā mua ʻana i nā mea.
Pono nā koina ʻae ʻae āpau e hahai i ka maʻamau maʻamau o ka papahana.
Hiki iā QT400-18 ke wili?
Hiki i ka welding ke hiki ke hana, akā pono ke kaʻina hana.
ʻO ka hoʻomaʻamaʻa mua ʻana a me ka hoʻomaloʻo ʻana he mea pono e pale aku i nā ʻāpana brittle a me ka pohā.
E nalowale nā hui Weld i kahi hapa o ka ductility o ka mea kumu.
He aha ka ʻokoʻa ma waena o QT400-18 a me QT400-18L?
ʻO QT400-18L ka ʻokoʻa haʻahaʻa haʻahaʻa.
Mālama ʻo ia i nā waiwai o ka hopena Charpy i nā haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa no nā mea hoʻokele anu.
Hoʻopili wale ʻia ka QT400-18 maʻamau i nā koi o ka hopena wela o ka lumi.
Ua kūpono anei ʻo QT400-18 no nā ʻāpana pale ʻaʻahu?
ʻAʻole maʻamau. Hāʻawi kona palupalu ferritic matrix i ka pale ʻana i ka abrasion.
No ka hoʻohana ʻana, pono e noʻonoʻo ʻia ka hao ductile ʻoi aku ka paʻakikī, austempered ductile a i ʻole ka hao hoʻoheheʻe.
