Ke kuhikuhi nei nā mea ʻenekinia i ke kila kila no ka hoʻokele wai koʻikoʻi a i ʻole nā mea hoʻololi i ka lole kiʻekiʻe, ʻaʻole lākou e koho wale i ka pale ʻana i ka corrosion - ke koho nei lākou i ke kūpaʻa dimensional ma lalo o ka paikikala wela, ka microstructural integrity ma hope o ka mīkini, a me ka hoʻihoʻi hou ʻana o ka hui-a-batch i nā waiwai mechanical. ʻO ia ke kumu e koho ai i ka pono hale hana hoʻoheheʻe metala kila ʻaʻole pili i ka hiki a i ʻole ke kumukūʻai wale nō. E pili ana ia i ka hoʻopaʻi metallurgical, ka traceability kaʻina hana, a me ka ʻike i hōʻike ʻia me nā ʻāpana i hāʻule i ka pōʻino inā ʻoi aku ka nui o ka porosity ma mua o 0.8% a i ʻole ka hoʻololi ʻana o ka ua carbide palena o ka palaoa ma ka 5 ° C i ka wā mālama wela.
No ke aha e koi aku ai ʻo MIM i nā mea ʻoi aku ma mua o ka ʻōpala a me ka umu ahi
Ua ʻike mākou i ka nui o nā papahana e kū nei - ʻaʻole ma ka loiloi hoʻolālā, akā i ka nānā ʻana i ka ʻatikala mua - no ka mea, mālama ka mea hoʻolako i ke kila kila MIM e like me ka pahu pahu 316L maʻamau. Hōʻike ka moʻolelo i nā ʻano hana hemahema o ka honua: warpage i loko o nā kino valve lahilahi ma hope o ka sintering; 'o'ole'a like 'ole ma luna o ke ko'oko'o piston 12-mm-diameter ma muli o ka ho'olaha kalapona 'ole; ʻO ka lua ʻili i loko o nā hale pamu ma hope o 48 mau hola o ka hoʻāʻo ʻana i ka paʻakai no ka mea ʻo ka wehe ʻana o ka mea hoʻopaʻa haʻalele i ke koena o ka sulfur.
Hana wale ʻia ka MIM kila kila inā ʻekolu mau kūlana: ʻO ka mea mua, ʻo ka pauka atomized kinoea me ka O₂ ≤ 150 ppm a me ka morphology spherical>95%—ʻaʻole nā hui ʻōpala wai-atomized i kūʻai ʻia ma ke ʻano he "MIM-grade." ʻO ka lua, ʻo ka hoʻopaʻa ʻana e pono e hahai i ka ʻaoʻao wela he nui i hoʻopaʻa ʻia i kēlā me kēia ʻāpana, ʻaʻole i ka papa hana umu paʻa. ʻO ke kolu, ʻo ka sintering e pono ai i ka ʻea a i ʻole ka ʻea hydrogen maʻemaʻe kiʻekiʻe me kahi hau ≤ –60°C. Hoʻokuʻu i hoʻokahi, a loaʻa iā ʻoe nā ʻāpana i hala i nā loiloi CMM akā haʻihaʻi ma 72% o ka paʻi pahū i helu ʻia.
ʻO ia ke kumu e mālama ai mākou i kēlā me kēia kauoha MIM kila kila ma ke ʻano he ʻaelike metallurgical-ʻaʻole he holo hana. Hoʻomaka mākou me ka hiki ʻana o ka pauka i hōʻoia ʻia a hiki i ka helu hui hoʻoheheʻe, hōʻoia i ka hoʻopau ʻana i ka binder me ka hoʻohana ʻana i nā pihi TGA-DSC, a nānā i ka lewa kapuahi sintering i ka manawa maoli me ka quadrupole mass spectrometry. ʻAʻohe ʻokoʻa.
Kahi e hui ai ka ʻenekinia pololei i ka ʻoihana ʻoiaʻiʻo
ʻOi aku ka nui o nā hale hana MIM kila kila ma nā pahu kiaʻi a i ʻole nā mea hana niho - ʻāpana ma lalo o 50g, haʻahaʻa haʻahaʻa, ʻaʻohe hoʻopaʻa hana. Akā, koi hou aku nā noi ʻoihana: nā pahu kaomi e hana ana ma 420 bar, nā hale cylinder me ± 5 µm concentricity ma waena o 200 mm lōʻihi, winch center shaft rollers e lawe ana i nā ukana dynamic 12-ton. ʻAʻole kēia mau pilikia geometry. He mau pilikia koʻikoʻi lākou.
Ua hāʻawi mākou ma luna o 18,000 mau ʻāpana MIM stainless steel no nā ʻōnaehana hydraulic kahi i manaʻo ʻia ai ka leakage i ka pani ʻana o ka ʻōnaehana—a kahi i hāʻule ʻole ai kahi plug AMS 5387 cobalt-alloy i hoʻoiho ʻia he $240k i ka wā hoʻomaha. ʻO kā mākou hoʻonā? ʻO ka hana ʻano huila. Hoʻoheheʻe mākou i ka geometry kumu paʻakikī, a laila CNC-mīkini koʻikoʻi sealing surfaces i Ra 0.2 µm a paʻi-hoʻokomo i nā lima kuhili ʻole i paʻa i loko o nā pahu lawe ukana. ʻAʻole kēia he kuʻikahi - ʻo ia ka hoʻonohonoho pololei.
ʻO kā mākou mea hoʻokō ISO ke holo nei i nā laina MIM i hoʻolaʻa ʻia no 17-4PH, 420 stainless, a me nā māka duplex maʻamau-ʻo kēlā me kēia me ka lawelawe ʻana i ka pauka, ka waiho ʻana i nā mea hana, a me nā umu sintering. ʻAʻohe hoʻohaumia kea. ʻAʻohe mea paʻa like. Loaʻa i kēlā me kēia hailona ka hōʻoia kemika piha ma o OES, ke ana ʻana i ka nui, a me ka hoʻāʻo ʻana i ka tensile ma nā laʻana hōʻike i huki ʻia mai ka pā sintering like me nā ʻāpana hana.
ʻO ka mea i loaʻa iā ʻoe—ʻaʻole wale ka mea i hoʻohiki ʻia
- Maikaʻi hiki ke loaʻa: Nā palapala hōʻoia pauka, nā faila log sintering, a me nā hōʻike CMM i hoʻopili ʻia i kēlā me kēia ʻāpana ID-ʻaʻole wale nā helu hui.
- ʻAʻohe "maʻamau" hoʻomanawanui: Manaʻo mākou i nā leka GD&T no kēlā me kēia hiʻohiʻona-e laʻa, ke kūpaʻa kūlana o Ø0.05 mm no nā lua kau, palahalaha o 0.015 mm no ka hoʻopaʻa ʻana i nā maka—ma muli o nā haʻawina hiki ke kaʻina hana maoli, ʻaʻole nā papa helu helu.
- Hoʻokomo ʻia ka hōʻoia hana: Hoʻouna ʻia kēlā me kēia kauoha me nā moʻolelo hoʻāʻo hydrostatic (no nā ʻāpana i loko o ke kaomi) a me nā palapala ʻāina ʻeleʻele—ʻaʻohe uku keu.
- Hoʻolālā-no-MIM manaʻo i loko o 48 hola: ʻAʻole wale "ʻoi aku ka lahilahi o kēia pā" - akā ʻo ka mānoanoa liʻiliʻi loa no kāu papa i ʻōlelo ʻia, ka palapala ʻāina vector hōʻemi i wānana ʻia, a me ka wahi i manaʻo ʻia e pale i nā laina weld i nā ala kahe koʻikoʻi.
ʻAʻole mākou hāʻawi i nā lawelawe "MIM-wale" a i ʻole "machining-only". Hāʻawi mākou hana hana mua. Inā makemake kāu ʻāpana kila kila i ka paʻakikī kokoke i ka ʻupena a me ka pololei o ka ʻili o ka mīkini, hoʻohui mākou i nā mea ʻelua-me ka ʻole o ka lima, me ka ʻole o ka ʻikepili, me ka hoʻopiʻi ʻole i ka hana ʻē aʻe ke hele hewa kekahi.
Ke koho ʻana ma waho o ka Brochure
E nīnau i kekahi mea hiki hale hana hoʻoheheʻe metala kila kēia mau nīnau ʻekolu—a e nānā i kā lākou pane ʻana:
- "E hōʻike mai iaʻu i nā lāʻau umu hoʻoheheʻe ʻekolu hope loa no 17-4PH. Ma hea kahi i loaʻa ai ka oxygen spike, a he aha ka hana hoʻoponopono i hana ʻia?"
- "E hele mai iaʻu ma kāu kaʻina hoʻokuʻu hoʻopaʻa ʻana no kahi hale kaʻa 3.2-mm-mānoanoa. He aha ka nui o ka wela wela āu e ʻae ai ma lalo o 350°C—a no ke aha?"
- "Inā makemake kā mākou kiʻi kiʻi iā HRC 42–44 ma kahi noho valve stainless 420 i hoʻopaʻa ʻia, hiki anei iā ʻoe ke hoʻokō ma o ka ʻelemakule post-sinter-a i ʻole ke hoʻoponopono nei ʻoe i ka ʻaoʻao sintering a hilinaʻi wale i ka paʻakikī o ka ua?"
Inā ʻaʻole maopopo ka pane, maʻamau, a i ʻole nā mea kuhikuhi "ʻoihana ʻoihana" me ka ʻole o ka helu ʻana i ka ASTM B964 a i ʻole MPIF Standard 35, e nānā mau. ʻAʻohe lumi no ka manaʻo ʻana i ke kila kuhili ʻole MIM.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. kūkulu i nā ʻāpana i hoʻopaʻa paʻa ʻia ma 200 ° C, hoʻololi me ka ʻole o ka ʻili ma 1500 RPM, a ola i nā pōʻai kaomi 10,000 me ka ʻole o ka microcrack initiation. Hana mākou ma ka hana ʻana i kēlā me kēia gram o ka pauka kila kila ma ke ʻano he mea hoʻololi metallurgical-ʻaʻole he mea kūʻai. E kipa https://www.tsingtaocnc.com e nānā i nā palapala ʻenehana, e hoʻoiho i nā palapala hōʻoia waiwai, a i ʻole e hoʻouna i kāu ʻāpana kila stainless steel aʻe no ka loiloi hana.
