1. Hōʻikeʻike
Hōʻike nā paila Centrifugal i ke ʻano nui o nā lako lawe wai i nā ʻōnaehana ʻoihana, ka helu ʻana i ka hapa nui o nā hoʻokomo ʻana i ka paila ma ka honua.
As operating parameters continue to increase toward higher pressure, keka ao, a me ke kū'ēʻana, pump casings are required to meet increasingly stringent mechanical and metallurgical standards.
The pump casing is the core structural component responsible for pressure containment, flow channel formation, and mechanical support.
For large kila kohu ʻole Nā kāpili pump, the combination of massive dimensions, ʻO nā lua kūloko, and localized thick sections makes defect control particularly difficult.
Traditional empirical process design methods often struggle to reliably eliminate shrinkage-related defects and may result in excessive process margins or low yield.
With the advancement of casting simulation technologies, it has become possible to predict and control the evolution of filling and solidification behavior before production.
Hoʻohana kēia haʻawina i ka simulation helu ma ke ʻano he mea hana hoʻolālā koʻikoʻi a hoʻohui pū me nā loina metallurgical a me ka ʻike ʻike ʻike kūpono e hoʻomohala i kahi kaʻina hoʻolei ikaika no ka pahu pahu centrifugal nui..
2. Nā ʻano o ke kūkulu ʻana a me ka nānā ʻana i ke ʻano o ke kino
Ka Paʻakikī o ka Pump Casing
ʻO ka pahu pahū i ʻimi ʻia he nui, hakahaka, ʻāpana hoʻolikelike rotationally me nā ʻili he nui a me nā ala kahe i loko paʻakikī.
Aia i loko o ka pahu nā ʻāpana ʻaoʻao lōʻihi, nā flanges i hoʻoikaika ʻia, a hoʻonohonoho pono ʻia nā lugs hāpai.
Nui nā ʻano ʻokoʻa mānoanoa o ka pā ma waena o nā ʻāpana kahawai a me nā ʻāpana hoʻoikaika kino.
ʻO ka hui ʻana o nā paia ʻaoʻao a me nā maka hope e hana i nā wahi wela wela maʻamau, ʻo ia ka mea e paʻa hope loa a hiki ke maʻalahi i nā hemahema inā ʻaʻole hānai pono ʻia..
Nā hiʻohiʻona paʻa o ke kila kila
Hōʻike ʻia ka māka stainless steel i koho ʻia e ka ʻike o ka alloy kiʻekiʻe a me kahi ākea ākea solidification.
I ka hooluolu ana, noho ka huila ma kahi kūlana semi-solid no ka manawa lōʻihi, ʻo ka hopena i ka palena o ka hānai ʻana a me ka hoʻemi ʻana i ka neʻe ʻana o ka metala wai i nā pae hope o ka solidification.
Nui loa, hōʻike ke kila kuhili ʻole i ka emi ʻana o ka volumetric kiʻekiʻe ke hoʻohālikelike ʻia me nā kila kalapona.
Ke koi nei kēia mau hiʻohiʻona metallurgical i kahi kaʻina hoʻolei e hōʻoia i ka hoʻopiha paʻa, nā gradients mahana i hoʻomalu ʻia, a me ka hānai maikaʻi ʻana i ke kaʻina paʻa holoʻokoʻa.
3. ʻO ke koho ʻana i ka ʻōnaehana mold a me ka hoʻoheheʻe ʻana i ka papahana
Mea Mold a me ke ano hooluolu
Kākoʻo hoʻoheheʻe one ua koho ʻia ka ʻenehana ma muli o kona kūpono no nā hoʻolei nui a paʻakikī.
Hoʻohālikelike ʻia me nā mole metala, Hāʻawi nā mea hoʻoheheʻe resin resin i ka ʻoi aku ka maikaʻi o ka insulation thermal a me ka lohi mālie, e kōkua ana e hōʻemi i ke koʻikoʻi wela a me ka pohā ʻana i nā hoʻolei kila kuhili.
Hāʻawi ka ʻōnaehana mold i ka maʻalahi i ka hui nui a ʻae i ka mana pololei o ka rigidity mold a me ka permeability., he mea nui ia no ka hōʻoia ʻana i ka pololei o ke ana a me ka hoʻokuʻu kinoea.
Ka Loiloi o ka Pouring Orientation
Ua loiloi ʻia nā orientations ninini lehulehu mai nā hiʻohiʻona o ka hoʻopiha piha ʻana, pono hanai, a me ka pale ʻana i nā hemahema.
Ua ʻike ʻia nā hoʻonohonoho hoʻoheheʻe ʻana e hana i nā wahi wela kaʻawale, ʻo ia hoʻi ma nā ʻāpana o luna e paʻakikī ke hānai pono.
Ua koho hope ʻia kahi ʻano hoʻoheheʻe wai kū i luna, e like me ka aligns me ke kumu o ka hoʻoikaika kuhikuhi.
I kēia hoʻonohonoho, paʻa mua nā ʻāpana haʻahaʻa o ka hoʻolei ʻana, ʻoiai e pili mau ana nā wahi wela o luna i nā kumu hānai, ka hoʻomaikaʻi nui ʻana i ka hilinaʻi hānai a me ka mālama kīnā.
4. Hoʻolālā ʻōnaehana Gating a me ka hoʻopiha piha ʻana
Nā Kumu Hoʻolālā
Ua hoʻolālā ʻia ka ʻōnaehana gating me nā pahuhopu o ka hoʻopiha wikiwiki a paʻa, haʻalulu liʻiliʻi, a me ka mana hoʻokomo pono.
Ua pale ʻia ka wikiwiki o ka metala a me ka hoʻololi ʻana i ke ala kahe e pale ai i ke komo ʻana o ka slag a me ka hoʻoheheʻe ʻia o ka ʻili..
Hoʻonohonoho hoʻoheheʻe ʻia ma lalo
ʻO kahi hānai i lalo, ua hoʻohana ʻia ka ʻōnaehana puka puka hāmama. Komo ka metala hehee i loko o ka lua poni mai ka ʻāpana haʻahaʻa a piʻi mālie, e ʻae i ka ea a me nā kinoea e hoʻoneʻe ʻia i luna a hoʻopau maikaʻi.
Hoʻemi nui kēia ʻano hoʻopihapiha hoʻopihapiha i ka turbulence kahe a hoʻolaha i ka hāʻawi like ʻana o ka mahana i ka wā hoʻopiha, he mea maikaʻi loa ia no nā hoʻoheheʻe kila kuhiliʻole nui me nā manawa ninini lōʻihi.
5. Hoʻolālā Pūnaehana Hanai a me ka Papahana Hoʻomalu Thermal
ʻIke ʻia o nā wahi wela koʻikoʻi
Numerical simulation results clearly identified the final solidification regions at the intersections of side walls and end faces.
These areas were confirmed as the primary targets for feeding and thermal control.
Hoʻonohonoho Riser a me ka hana
A combination of top risers and side blind risers was designed to address both global and local feeding requirements.
The top riser served as the main feeding source and also facilitated gas escape, while side risers improved feeding accessibility to lateral hot spots.
Riser geometry and placement were optimized to maintain sufficient feeding time and ensure that final solidification occurred within the risers rather than in the casting body.
Hoʻohana ʻia ʻo Chills
External chills were strategically placed near thick sections to locally accelerate solidification and establish favorable temperature gradients.
ʻO ka hoʻohana ʻia ʻana o ke anuanu a me nā ala ala i hoʻoikaika maikaʻi ʻia i ka paʻa ʻana o ke kuhikuhi a pale i nā wahi wela kaʻawale..
6. ʻO ka hoʻohālikelike helu a me ka nānā ʻana i nā ʻāpana he nui
Ua hoʻohana ʻia ka polokalamu hoʻoheheʻe kiʻekiʻe e loiloi i ka hana hoʻopiha piha ʻana, ka hoʻololi mahana, hooulu hakina paa, a me ka maʻalahi o nā hemahema.
Ua hōʻike ʻia nā hopena simulation i kahi kaʻina hana hoʻopiha paʻa me ka mua metala maʻemaʻe a ʻaʻohe hōʻike o ka hoʻokaʻawale ʻana a i ʻole ka stagnation..
I ka wā paʻa, ua hōʻike ʻia ka hoʻolei ʻana i kahi ʻano paʻa paʻa lalo lalo.
Ua hōʻike ʻia nā wānana porosity Shrinkage ua paʻa nā hemahema a pau i ka risers a me ka ʻōnaehana gating., e waiho ana i ke kino hoolei me na hemahema o loko.
Ua hōʻike ʻia nā hōʻike ʻana i ke koʻikoʻi wela a me ka ʻāʻī ʻana i nā pae koʻikoʻi i loko o nā palena kūpono, hōʻoia hou i ka paʻa o ka hoʻolālā kaʻina hana.
7. Hiki i ka mīkini a me ka hana ma hope o ka hoʻolei ʻana
Hoʻopili pololei ka maikaʻi o ka hoʻolei ʻana i ka hana machining a me ka hana ʻāpana.
ʻO ka loaʻa ʻole o nā hemahema o loko a me ka hoʻopau ʻana o ka ʻili e hōʻemi i ka ʻaʻahu o ka mea hana, Ma ke aniani, a me ka pilikia o ka ʻōpala i ka wā e hoʻopau ai i nā hana.
Eia hou, ʻO ka paʻa paʻa like ʻana a me ka hoʻoluʻu hoʻomalu ʻia e hāʻawi i nā microstructure homogeneous a me ke koena o ke kaumaha, ka mea e hoʻomaikaʻi i ke kūpaʻa dimensional i ka wā mīkini a me ka lawelawe.
He mea kūpono kēia no nā pahu pahu e koi ana i ka alignment pololei o nā flanges a me nā ala kahe e mālama pono ai i ka hydraulic..
8. ʻO ke koena o ke kaumaha a me ka hilinaʻi o ka lawelawe
ʻO ke koʻikoʻi koʻikoʻi he mea koʻikoʻi e pili ana i ka hilinaʻi lōʻihi o nā pahu pahū kila kila nui.
Hiki ke alakaʻi i nā koʻikoʻi kūloko kiʻekiʻe i ka wā o ka paʻa ʻana, e hoʻonui ana i ka hikiwawe o ka distortion a i ʻole ka haki ʻana i ka wā mālama wela a lawelawe.
ʻO ka hoʻohana pū ʻana i nā mold one resin, ka ninini ʻana o lalo, a ʻo ka hoʻoheheʻe ʻana i hoʻopaʻa ʻia e hoʻolalelale i ka ulu ʻana o ka mahana i loko o ka hoʻolei ʻana.
Hoʻopau maikaʻi kēia ala i ke koena o ka hōʻiliʻili kaumaha a hōʻemi i ka pono no ka hoʻomaʻamaʻa hoʻoluhi koʻikoʻi post-casting., ma laila e hoʻomaikaʻi ai i ka hilinaʻi o ka hale ma luna o ke ola lawelawe o ka mea.
9. Hana ʻia a me ka hoʻāʻo ʻana
Ma muli o nā kaʻina hana i hoʻopaʻa ʻia, ua hoʻokō ʻia ka hoʻokolokolo hoʻokolokolo piha.
Ua hōʻike ʻia ka pahu pahū i hana ʻia i nā contours i wehewehe maikaʻi ʻia, Nā papa'āina, ʻaʻole ʻike ʻia nā hemahema o ka ʻili.
Ma hope o ka hoʻāʻo ʻana a me ka nānā ʻana i ka mīkini i hōʻoia i ke kani maikaʻi o loko a me ke kūpaʻa dimensional.
Ua like ka hopena o ka ho'āʻo ʻana i nā wānana simulation, e hōʻike ana i ka hilinaʻi kiʻekiʻe a me ka hoʻohana pono ʻana o ke kaʻina hoʻolei i manaʻo ʻia.
10. Nā hopena
Hōʻike kēia haʻawina i kahi hoʻolālā hana hoʻoheheʻe holoʻokoʻa a me ka manaʻo maikaʻi no kahi pahu pahu centrifugal nui.
Hoʻohui ka hana i ka nānā ʻana i ka hana, ʻano hoʻopaʻa waiwai, poni a me ka ninini ana koho papa, hoʻonohonoho ʻōnaehana gating, a me ka hoonui ana i ka hanai ana.
Ua hoʻohana ʻia ka ʻenehana simulation helu kiʻekiʻe e kālailai i ka hoʻopiha piha ʻana, ka hoʻololi mahana, a me nā hiʻohiʻona kūpono, hiki i ka hoʻomaʻemaʻe kaʻina hana.
ʻO ka hana hoʻāʻo e pili ana i ke kaʻina hana i hoʻopaʻa ʻia i hōʻike i ka kūpaʻa o ka ʻili a me ka maikaʻi o loko, e hōʻoia ana i ka pono a me ka hilinaʻi o ke ala i manaʻo ʻia.
Hāʻawi ka haʻawina i kahi ʻōnaehana a me ka hana no ka hana ʻana i nā mea nui, kiʻekiʻe kiʻekiʻe kuhiliʻole kila pahu pahu.
