Ke lohe ʻoe i nā 'mea hana hao pauda', lele pololei ka hapa nui o ka noʻonoʻo i ka hana paʻi-a-sinter maʻamau no ka hana ʻana i nā mea hana maʻalahi. ʻO ia ka wahi e komo ai, ʻoiaʻiʻo, akā, ua like ia me ka ʻōlelo ʻana i ke kumu kuke ʻike wale i ka paila wai. ʻO ka hohonu maoli—a ma kahi o nā poʻo poʻo a me nā haʻihaʻi ʻana— aia i loko o ke kaulahao piha: mai ke koho ʻana i ka pauka alloy a me nā ʻenehana hoʻopaʻa paʻa kiʻekiʻe e like me ka hoʻoheheʻe ʻana i ka metala (MIM) a i ʻole ke kaomi isostatic anuanu (CIP), a hiki i nā hana koʻikoʻi koʻikoʻi. Nui nā nīnau noiʻi e haʻalele i kēia. Makemake lākou i kahi 'āpana metallurgy pauda' akā ʻaʻole i kuhikuhi i ka nui e pono ai, nā ʻae ʻana ma hope o ka hoʻopaʻa ʻana, a i ʻole pono ka mālama wela a i ʻole ka impregnation. ʻO ia kahi e kū ai a hāʻule paha nā papahana. Ua ʻike pinepine au.
ʻO ka Alloy Powder Maze
Hoʻomaka me ka pauda. ʻAʻole like ka pauda hao a pau. Hāʻawi ka wai-atomized me ka gas-atomized iā ʻoe i nā ʻano ʻāpana like ʻole a me nā ʻano kahe, e pili pono ana i ka hoʻopiha ʻana o ka pauka i kahi make a me kona ikaika ʻōmaʻomaʻo hope. No nā ʻāpana hana kiʻekiʻe, e like me nā mea e pono ai ke kūpaʻa i ka luhi, ke nānā nei ʻoe i nā pauka i hoʻohui mua ʻia-nā mea e like me Fe-Ni-Mo i hoʻopaʻa ʻia i ka diffusion a i ʻole nā pae kila kuhili ʻē aʻe. He mea nui ke kumukūʻai, ʻaʻole kēlā me kēia mea hana hao pauda mālama i kahi papa helu ākea. Hiki iā lākou ke kūʻai i ka F-0008 maʻamau akā pono lākou e kauoha kūikawā i kekahi mea ʻē aʻe, me ka hoʻohui ʻana i nā pule no ka manawa alakaʻi.
A laila aia ka mea hoʻopili. No MIM, he mea kupanaha no ka paʻakikī, nā geometries liʻiliʻi, ʻo ka ʻōnaehana binder ka hapalua o ke kaua. ʻO ka hoʻopaʻa ʻana he hana lohi a paʻakikī; e wikiwiki a loaʻa iā ʻoe nā māwae a i ʻole ka hoʻokaʻawale ʻana. Hoʻomanaʻo wau i kahi papahana no kahi mea hana ʻokiʻoki kahi i koi ai ka mea kūʻai aku i kahi pōʻai sintering ikaika loa e mālama i ka manawa. Ka hopena? Ua pau ka maʻi kalapona, e alakaʻi ana i ka brittleness. Pono mākou e hoʻi, e hoʻopololei i ka hoʻopili paʻa, a hoʻolohi i nā mea a pau. ʻO ka meaʻai pauka he kūpaʻa, ʻaʻole kahi mea āu e hoʻololi maʻalahi ai.
ʻO kēia kahi e uku ai ka loaʻa ʻana o kahi hoa pili me ka ʻike waiwai ākea. ʻO kahi hui like Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), no ka laʻana, hele mai ia mai kahi hohonu i ka hoʻolei ʻana i nā alloys kūikawā. ʻAʻole nalo wale kēlā ʻike metallurgical ke nānā ʻoe i ka pauda. ʻO ka hoʻomaopopo ʻana i ke ʻano o ka nickel-based alloys ma lalo o ka wela, no ka laʻana, hiki ke hoʻololi pololei ʻia i ka sintering iā lākou i loko o kahi ʻano pauda. Hoʻomaopopo ia i kā lākou hoʻokokoke ʻana i ka hoʻomalu ʻana i ka lewa ahi a me nā helu hoʻoluʻu, ʻo ia ka make-or-break no nā waiwai hope.
Compaction: ʻAʻole ia he hāmare nui wale
ʻO ka paʻi kuʻuna maʻamau he ʻano hana nona iho. ʻO nā ʻāpana ʻāpana he nui, nā mea me nā paia lahilahi a i ʻole nā loli ʻoi o ka mānoanoa, kaulana no nā ʻano like ʻole. Hiki iā ʻoe ke haʻalele me ia no kahi spacer haʻahaʻa haʻahaʻa, akā no kekahi mea i kūkulu ʻia, he wahi nāwaliwali kēlā ʻano. ʻO ka hoʻolālā mea hana ma ʻaneʻi nā mea āpau - ke kaʻina o nā kuʻi, ka ʻōnaehana hānai pauda. ʻO kahi maikaʻi mea hana hao pauda e holo ana i ka hoohalike ana i ke kahe o ka pauda a me ka hoopili ana ma mua o ka oki ana i ka mea hana mua. Manaʻo nā mea liʻiliʻi, a ke uku nei ʻoe iā ia ma ke ʻano like ʻole.
No nā kiʻi paʻakikī, neʻe ʻoe ma mua o ke kaomi ʻana. Hoʻohana ʻo CIP (Cold Isostatic Pressing) i ke kaomi wai e hoʻopaʻa i ka pauka i loko o kahi ʻano maʻalahi, e hāʻawi ana i ka paʻa like ʻole no nā ʻāpana e like me ka pretzel. ʻO ke kālepa-off? ʻAʻole pololei ke ʻano mua, no laila ke hana nei ʻoe i ka mīkini ʻoi aku ka nui ma hope o ka sintering. MIM, e like me ka mea i ʻōlelo ʻia, he holoholona ʻē aʻe. Ua like ia me ka hoʻoheheʻe ʻia ʻana o ka plastik akā me ka pauka metala i hoʻopaʻa ʻia i loko o kahi mea paʻa. He mea kupanaha ka hoʻonā kikoʻī, akā nui ka emi ʻana o ka dimensional i ka wā sintering a pono e wānana me ka pololei loa. He manawa paʻakikī kāu nānā 'atikala mua.
Ua hana au me kahi mea kūʻai aku ma kahi hale sensor i loaʻa nā ala helical kūloko. ʻO ka hana ʻana he mea pōʻino a ʻaʻole hiki i ka hoʻolei ʻana ke hoʻokō i ka hopena o ka honua. ʻO MIM ka hopena maikaʻi loa. Ua hoʻohālikelike mākou me ʻekolu mau mea hoʻoheheʻe ʻokoʻa no ka hakakā ʻana i ka warpage, a ʻo ka hopena hope loa i loaʻa ma kahi o 85% wale nō ma ka holo hana mua. ʻAʻole ia he lāʻau kupua hana nui; he kaʻina hana no nā ʻāpana waiwai nui a paʻakikī kahi e hōʻoia ai ka hoʻohālikelike kumu kūʻai no kēlā me kēia ʻāpana i ka hoʻoikaika ʻana.
Ka Make-or-Break: Sintering and Beyond
ʻO ka Sintering kahi i hana ʻia ai ka hana kilokilo—a ma kahi o ka hapa nui o nā pōʻino. ʻAʻole ia e kālua wale. He pōʻai wela i hoʻopaʻa ʻia i loko o kahi lewa kūikawā (hydrogen, nitrogen, vacuum, a i ʻole ka hui ʻana). ʻO ka hōʻike wela, ka nui o ka ramp, ka manawa wai, a me ka wikiwiki hoʻomaha e kuhikuhi i ka microstructure hope loa, density, a me nā waiwai mechanical. Hiki i ke kuhi hewa ke alakaʻi i ka blistering, sagging, a i ʻole lawa ka paʻa ʻana ma waena o nā ʻāpana.
Ma hope o ka sintering, ʻaʻole i pau pinepine ka ʻāpana. He nui ka poʻe i manaʻo ua mākaukau kahi ʻāpana sintered e hoʻouna. No nā ʻāpana kikoʻī, aneane ʻaʻole loa. Pono ʻoe i nā hana lua. He wahi koʻikoʻi overlap kēia. A mea hana hao pauda ʻO ia wale nō ka paʻi ʻana a me ka sintering e hoʻouna iā ʻoe i kahi ʻāpana i hoʻopaʻa ʻia akā hiki ʻole ke hoʻohana ʻia no ka mea ʻaʻole hiki ke paʻa no ka mīkini. ʻO kēia ke kumu he mea hoihoi ke kumu hoʻohālike ma QSY. Aia ko lākou kumu i loko ʻO ka mīkini CNC a me ka hoolei waiwai. No lākou, ʻo ka hoʻohui ʻana i ka metallurgy pauka ʻaʻole ia e pili ana i ka hana ʻana i kahi ʻāpana ʻōmaʻomaʻo; e pili ana i ka hāʻawi ʻana i kahi mea i hoʻopau ʻia, mākaukau e hoʻokomo. Hiki iā lākou ke hoʻopaʻa i kahi ʻano ʻupena kokoke a laila hoʻohana i kā lākou mana CNC i loko o ka hale e hoʻopaʻa i ka hoʻomanawanui ʻana i nā anawaena a i ʻole nā hiʻohiʻona hiʻohiʻona, kahi mea e pono ai i kahi hale kūʻai PM pāʻani maʻemaʻe.
ʻO ka mālama ʻana i ka wela, ka uhi ʻana i ka ʻili (e like me ka mālama ʻana i ka mahu no ka pale ʻana i ka corrosion), a i ʻole ka ʻaila impregnation no ka lubrication ponoʻī kekahi mau ʻanuʻu lua maʻamau. Hoʻohui kēlā me kēia i ke kumukūʻai a me ka manawa, akā ʻo ka lele ʻana iā lākou e pili ana i ke kumu kūʻai mua he ʻoihana hoʻopunipuni maʻamau. Ua ʻike au i ka hāʻule ʻole o nā puʻupuʻu gear i ka hoʻāʻo ʻana no ka mea ua ʻōlelo ʻia lākou he-sintered i ka wā e pono ai lākou i kahi lapaʻau paʻakikī.
Nā Kūleʻa Pono a me nā Synergies Practical
Loaʻa kēia i kahi kikoʻī e pili ana i ka hana kūikawā versus hoʻohui. He loea ka hale PM kuʻuna. Akā, no ka mea kūʻai aku, ʻoi aku ka mea e pili ana i nā alloys kūikawā, nui ka waiwai o ka mea hana e hoʻomaopopo i ka metallurgy ma nā kaʻina hana. E lawe i nā papa inoa QSY i hoʻokumu ʻia i ka cobalt-based a i ʻole nickel-based alloys. He mea paʻakikī kēia, he mau mea pipiʻi pinepine i hoʻohana ʻia i nā wahi wela a i ʻole nā corrosive. ʻO ka hoʻokumu ʻana iā lākou ma o ka pauka metallurgy hiki ke mālama i ka nui o nā mea i hoʻohālikelike ʻia i ka mīkini ʻana mai ka waihona bar. Akā paʻakikī ka hana ʻana iā lākou. ʻO kā lākou ʻike i ka hoʻolei kālā ʻana i kēia mau mea hoʻoheheʻe like ʻo ia hoʻi ua ʻike mua lākou i ke ʻano o ka hoʻohana ʻana iā lākou ma kahi ʻano hoʻoheheʻe ʻia a i ʻole semi-molten; ʻo ia ka manaʻo e pili ana i ka mālama ʻana i nā mahana sintering a me ka pale ʻana i ka ʻino i loko o ka umu.
Pili pū ia i ka mana maikaʻi. Ke nānā nei paha lākou i nā ʻano like ʻole o nā hemahema: porosity, inclusions, ʻano ʻino ka nui o ka palaoa. Hiki ke hoʻomohala ʻia kā lākou hana NDT (non-destructive testing) no ka mea e koi maʻamau ka hoʻolei ʻana. He waiwai ʻike kēia ʻike kaʻina hana ʻaʻole e loaʻa i kahi hale kūʻai PM hou.
Mai ka manaʻo hoʻokele papahana, maʻalahi ia i nā mea. Ma kahi o ka hoʻonohonoho ʻana ma waena o kahi mea kūʻai aku PM, kahi mīkini, a me kahi mea mālama wela, loaʻa iā ʻoe hoʻokahi wahi o ka hoʻopili ʻana i ke kahe holoʻokoʻa. ʻO ka pilikia o ke kuhikuhi ʻana i nā manamana lima ke hala ka hoʻomanawanui ma hope o ka hana ʻana e nalowale. ʻO ka puka manaʻo ma waena o ka hui sintering a me ka hui mīkini hikiwawe no ka mea aia lākou i ka hale hoʻokahi.
ʻO ka ʻimi maoli a me nā manaʻo hope
No laila, ke loiloi ʻoe nā mea hana hao pauda, mai noi wale i ka palapala hiki. E nīnau e pili ana i kā lākou helu pauda maʻamau a me ko lākou manawa alakaʻi ma nā mea kūikawā. E noi e ʻike i nā laʻana o nā ʻāpana a lākou i hana ai i koi ʻia i ka mīkini lua a pehea lākou e hoʻopili ai. E nīnau e pili ana i kā lākou mau lewa hoʻoheheʻe maʻamau a me ka pololei o ka mālama ʻana i ka mahana. E nīnau e pili ana i kahi papahana hāʻule a me nā mea a lākou i aʻo mai ai. E haʻi aku nā pane iā ʻoe ma mua o ka papa inoa o nā tonages paʻi.
ʻAʻole paʻa ke kahua. Ke ulu nei ka hoʻohana ʻana i ka hana hoʻohui me nā pauka metala, ʻo ia wale nō ka pauka metala me ka laser. Ke pōʻalo nei nā laina. ʻO kahi mea hana i hoʻopaʻa ʻia i ka 1990s press-and-sinter mindset e hakakā me ka hoʻohui hou ʻana a me ka waiwai nui e hiki mai ana.
I ka hopena, hiki i kēia: ʻo ka pauka metallurgy kahi ala e hoʻopau ai. ʻO ka hopena he mea hana metala hilinaʻi. Hoʻomaopopo nā mea hana maikaʻi i ka huakaʻi holoʻokoʻa mai ka pauka a i ka ʻāpana pau, a loaʻa iā lākou nā mākau ancillary-e like me ka ʻO ka mīkini CNC a me ka ʻike loea i ʻike ʻia ma kahi paʻa e like me QSY—e hōʻoia i ka pau ʻana o ka huakaʻi. ʻO ia ka hiʻohiʻona holoʻokoʻa, ʻoi aku ma mua o nā mea hana hoʻokahi, e hoʻokaʻawale i nā mea hakakā maoli mai nā hale kūʻai hana kumu.
