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hale hana hoolei koloka silica

Ke hōʻike ʻia e nā ʻenekinia hoʻoheheʻe kālā silica colloidal no nā ʻāpana metala kiʻekiʻe, ʻaʻole lākou e koho wale i kahi kaʻina hana - ke koho nei lākou i kahi hōʻoia hana. ʻO ke kūpaʻa ʻana ma lalo o ke kaʻa kaʻa wela. ʻO ka pau ʻana o ka ʻili e hoʻopau i ka wili ʻana ma hope o ka hoʻolei ʻana. ʻO ka mana microstructure i loko o nā ʻāpana cobalt kahi e pono ai kēlā me kēia palena ʻai. ʻAʻole kēia mau pōmaikaʻi theoretical. ʻO ia nā hopena a mākou e ʻike ai i kēlā me kēia lā ma kā mākou hale hoʻokō ISO ma Qingdao-kahi i hele ai kēlā me kēia pūʻulu o AMS 5387 cobalt alloy pump house a i ʻole T800 nozzle i ʻekolu mau nānā CMM kūʻokoʻa ma mua o ka haʻalele ʻana i ka laina.

No ke aha i hāʻawi ʻia ai ka hoʻolei kālā silica colloidal i kahi e kū ai nā ala ʻē aʻe

ʻOi aku ka ikaika o nā pūpū silica colloidal, ʻoi aku ka paʻa o ka wela ma mua o nā mea hoʻopili ethyl silicate. Ua unuhi pololei ʻia kēlā ikaika i loko o nā māwae pūpū liʻiliʻi i ka wā dewaxing a me ke kī ʻana—a ʻaʻohe ʻae ʻole no ka hoʻokaʻawale ʻana i loko o nā hale cylinder pā lahilahi i helu ʻia no 420 bar hydraulic service. Ua ana mākou i ka hoʻonui ʻia o ka pūpū ma 0.012% no ka °C a hiki i 1100°C; ʻO nā mea hoʻokūkū e hoʻohana ana i ka wai aniani a i ʻole nā ​​ʻōnaehana alumina-paʻa pinepine ma mua o 0.035%. ʻO kēlā ʻokoʻa? ʻO ia ka ʻokoʻa ma waena o ka paʻi ʻana i ka ± 0.05 mm GD&T ma kahi hale paila piston 320 mm-a ʻoki ʻia ma hope o ka nānā ʻana i ka ʻatikala mua.

ʻAʻole mākou e holo i ka hoʻolei silica colloidal ma ke ʻano he laina kūʻokoʻa. Hoʻohui ʻia me ka mīkini CNC pololei i hoʻokahi kaʻina hana: hoʻolei i ka geometry kumu, nā ʻili hoʻopaʻa koʻikoʻi o ka mīkini a me nā ʻano kaula, a laila e hoʻohana i ka mālama wela hoʻomalu ʻia * me ka ʻole o ka haki ʻana i ka traceability. ʻAʻohe lima lima. ʻAʻohe mea i ʻike hou ʻia. Lawe ʻia kēlā me kēia ʻāpana i kahi ID lot i kālai ʻia i ka laser e pili ana i nā palapala hōʻoia waiwai, nā pahu dip shell, nā palapala kapuahi, a me nā hōʻike CMM hope loa.

Hoʻoponopono kēia hoʻohui i kahi wahi ʻeha maoli: warpage i nā hoʻolei kila kiʻekiʻe. Ua lawe mai kekahi mea kūʻai iā mākou i ke kino kiwi kila kuhiliʻole i hoʻopaʻa ʻia i ka 0.18 mm ma hope o ka hoʻomaha ʻana i ke kaumaha—no ka mea, ua hoʻolei, hoʻouna ʻia a hoʻokuʻu ʻia ka mea kūʻai aku i ka mālama wela. Hoʻohana hou mākou me ka hoʻohana ʻana i nā meaʻai like T800-grade, akā paʻa i ka ʻāpana i loko o kā mākou umu ahi ma hope koke o ka lulu ʻana. ʻO ka hoʻoneʻe hope: 0.023 mm. ʻAʻole kilokilo. Hoʻomalu wale ʻia ka mōʻaukala wela—a me ka hoʻokō ʻana i ke kaʻina hana piha.

He aha ka mea e ʻokoʻa ai ka hale hana hoʻoheheʻe colloidal silica maoli

He nui nā hale kūʻai i kapa iā lākou iho "nā hale hana hoʻoili waiwai." He kakaikahi wale no ka mea nona ka colloidal silica slurry formulation, shell drying protocols, a me dewaxing ramp profiles e wehewehe ana i ka holomua me na superalloys. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., hoʻohālikelike mākou i ka viscosity i kēlā me kēia pule me ka hoʻohana ʻana i nā viscometers Brookfield, nānā i ka neʻe ʻana o ka pH i ka manawa maoli, a hōʻole i kekahi pūʻulu slurry ma waho o 9.2–9.6 pH—ʻoiai ke nānā pono ʻia. No ke aha mai? Ma muli o ka hoʻololi ʻana o ka pH e hoʻololi i ka hiki o ka silica particle zeta, ka mea e hoʻololi ai i ka nui o ka pūpū, permeability, a me ka hopena, ka ʻeleʻele o ka ʻili (Ra) ma nā ʻāpana i hoʻopau ʻia. Ua ʻike mākou i ka lele ʻana o Ra mai 1.8 µm a i 4.3 µm i ka neʻe ʻana o ka pH i 9.8.

Hana pū mākou i ka puhi ʻana i ka pūpū ma ke ʻano he metallurgy - ʻaʻole nā ceramics wale nō. ʻO kā mākou kilns ramp ma ≤60 ° C / hola a hiki i 1050 ° C, paʻa no 90 mau minuke, a laila anuanu ma ≤40 ° C / hola. ʻO kēlā pōʻai lohi e pale i ka microcracking ma nā ʻāpana mānoanoa o nā hoʻolei cobalt-nickel. Ua hoʻololi ʻia kekahi pāpaʻi ʻEulopa iā mākou ma hope o ʻelua mau mea hoʻolako mua i hoʻopuka i nā hub impeller AMS 5387. Ua hōʻike ko lākou kumu kumu i nā haʻihaʻi haʻihaʻi wela e puka mai ana mai nā pilina shell-to-metal. Ua hoʻopau kā mākou kiʻi kiʻi iā lākou. ʻAʻole ma ka hoʻololi ʻana i ka huila—akā ma ka mahalo i ka hanu ʻana o ka pūpū.

  • ʻO nā lako maka i hōʻoia ʻia—ʻo kēlā me kēia wili i hiki ke ʻimi ʻia i nā hōʻike hoʻāʻo wili
  • ʻAʻohe hana i hoʻopaʻa ʻia a i ʻole dewaxing—100% ka mana kaʻina hana hale
  • ʻO ka loiloi hoʻolālā GD&T-mua: hae mākou i nā kihi kikoʻī ma lalo o 0.5° ma mua o ka hoʻomaka ʻana o ka mea hana
  • ʻO ka hōʻoia ʻana o ka hoʻopau ʻana o ka ʻili ma nā profileometers opitika—ʻaʻole ka nānā ʻike maka wale nō

ʻO nā noi honua maoli kahi i hōʻike ʻole ʻia ai ka hoʻolei ʻana i ka silica colloidal

Ke koi aku nei na kiwi puuwai no ka aila a me ke kinoea ma waho o ka moana i ka hana leak-leak ma -46°C a i +121°C. ʻAʻole hiki i ka hoʻolei ʻana i ke one ke paʻa i ka concentricity noho 0.02 mm i koi ʻia. Paʻakikī ka hoʻolei kālā maʻamau me ka nui wela o nā hale ASTM A494 M35-1. Hana ka silica Colloidal i nā mea ʻelua: ka hoʻomanawanui paʻa *a me ka paʻa pono ʻole ma waena o nā gradient wela loa.

Ua hana mai nei makou i na wili wili waena no na oihana winch kaa— na hapa me 220 mm OD, 45 mm ka manoanoa o ka paia, a me ka geometry spline i loko. Pono ka mea kūʻai aku i ka paʻakikī ≥58 HRC *ma ka ʻāpana *, ʻaʻole i hoʻopaʻa ʻia i ka hihia. Hiki i ka silica colloidal ka mānoanoa o ka pūpū like ʻole, ka nui o ka paʻa paʻa, a me ka porosity ʻole i loko o ka ʻāpana haʻahaʻa koʻikoʻi. Ua hāʻule ka manawa mīkini i 37% ma mua o nā blanks one-cast no ka mea ua hāʻawi mākou i ke ʻano o ka ʻupena kokoke me ka hoʻoili waiwai ʻike ʻia.

ʻO nā hihia hoʻohana ʻē aʻe i hōʻoia ʻia he:

  • ʻO nā nozzles hoʻoheheʻe ʻia ʻo Cobalt no nā pahū slurry abrasive kiʻekiʻe (papa T800, 62–65 HRC)
  • Pono nā kumu pāpaʻi ≤0.08 mm ma luna o 850 mm ka lōʻihi
  • ʻO nā mea lawe lāʻau piston maʻamau me nā kahawai hoʻoluʻu i hoʻohui ʻia - hoʻolei ʻia, ʻaʻole welded

ʻO ke koho ʻana i kāu hale hana hoʻoheheʻe silica colloidal ʻaʻole ia e pili ana i ka hiki—e pili ana i ka mākaukau

Inā koi kāu ʻāpana i ka AMS 5387, T800, a i ʻole UNS R30005—a pono e ola i nā pōʻaiapili 10,000+ me ka hoʻomaka ʻole o ka microcrack—pono ʻoe ma mua o ka hale hana. Pono ʻoe i kahi hoa hana e mālama i ka silica colloidal ʻaʻole ma ke ʻano he mea hoʻopaʻa, akā ma ke ʻano he mea hoʻololi metallurgical. ʻO wai ka mea e hōʻoia i ka ikaika o ka pūpū me ka ASTM C133 hōʻike hoʻoemi — ʻaʻole ka nānā maka wale. Na wai e hoʻopili i kēlā me kēia hemahema hoʻolei ʻana i kahi hoʻololi ʻokoʻa: slurry makahiki, dewaxing rate, a i ʻole ambient humidity i ka wā o ka luʻu ʻana.

QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ʻO ia ala-ʻaʻole no ka mea maʻalahi, akā no ka mea ʻaʻole waiho ʻia nā mea koʻikoʻi koʻikoʻi no ka manaʻo. Hoʻopuka mākou i kā mākou puka makani kaʻina hana silica colloidal. Kaʻana like mākou i ka ʻikepili puʻupuʻu shell me nā mea kūʻai aku. Hoʻokuʻu mākou i nā ʻenekini e hoʻopaʻa i kā mākou mau palapala calibration CMM. ʻAʻole kūʻai aku kēlā ʻike. Pehea ʻoe e hōʻoia ai ʻo "colloidal silica investment casting factory" ma ka pepa e pili ana i ka mea e holo ana ma ka papahele hale kūʻai.

No nā ʻāpana metala pololei kahi i koho ʻole ʻia ai ka hemahema, ʻaʻole hoʻolei wale ka hale hana kūpono. Hāʻawi ia i ka hilinaʻi.


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