Kodi mukufuna kudziwa bwino kupanga ufa wachitsulo wa ultrafine? Yang'anani apa.

Masiku ano mafakitale apamwamba kwambiri, ufa wachitsulo wapamwamba kwambiri wasanduka zida zamafakitale ambiri apamwamba kwambiri. Ntchito zawo ndi zazikulu komanso zovuta, kuyambira kusindikiza kwazitsulo za 3D (zopanga zowonjezera) ndi zokutira zotchingira zotenthetsera zama injini zakuthambo kupita ku phala lasiliva la zida zamagetsi ndi titaniyamu alloy ufa woyika zoyika zachipatala. Komabe, kupanga ufa wapamwamba kwambiri, wochepa wa okosijeni, wozungulira kwambiri wachitsulo ndi vuto lalikulu laukadaulo. Pakati pa matekinoloje osiyanasiyana opangira ufa, kutentha kwamadzi kwazitsulo zotentha kwambiri kukukula kwambiri chifukwa cha zabwino zake zapadera. Koma kodi ndi "zabwino" monga mphekesera? Nkhaniyi ikufotokoza mfundo zake, ubwino wake, mavuto ake, ndiponso mmene angagwiritsire ntchito kuti apeze yankho.

1. Ultra-Fine Metal Powder: "Mwala Wapangodya Wosaoneka" wa Makampani Amakono

Musanaunike zidazo, ndikofunikira kumvetsetsa chifukwa chake ufa wachitsulo wapamwamba kwambiri ndi wofunikira kwambiri.

(1) Tanthauzo ndi Miyezo:

Childs, zitsulo ufa ndi tinthu kukula pakati 1 micron ndi 100 microns amaonedwa ufa wabwino, pamene tinthu kukula m'munsimu 20 microns (ngakhale mpaka sub-micron mlingo) amatchedwa "ultra-fine" kapena "yaying'ono-zabwino" ufa. Ufawu uli ndi gawo lalikulu kwambiri, zomwe zimapangitsa kuti pakhale zowoneka bwino, zowoneka pang'ono, komanso kuchuluka kwazinthu zomwe sizipezeka muzinthu zambiri.

(2) Minda Yogwiritsa Ntchito Kwambiri:

Kupanga Zowonjezera (Kusindikiza kwa 3D): Ili ndiye gawo lalikulu kwambiri lofunidwa kwambiri ndi ufa wachitsulo wapamwamba kwambiri. Ma laser kapena ma elekitironi amasungunuka motsatizana zigawo za ufa kuti apange ndendende magawo okhala ndi ma geometries ovuta amlengalenga, azachipatala (monga mafupa a m'chiuno, korona wamano), ndi mafakitale a nkhungu. The ufa flowability, tinthu kukula kugawa, ndi sphericity mwachindunji kusindikizidwa mbali yolondola ndi ntchito.

Metal Injection Molding (MIM): Ufa wachitsulo wabwino kwambiri umasakanizidwa ndi chomangira ndikubaya mu nkhungu kuti apange mawonekedwe. "Gawo lobiriwira"li limapangidwa ndi debinding ndi sintering kuti lipange tinthu tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono ta SIM tambiri, zoyatsira mfuti, zoyatsira mfuti, ndi mawotchi apamwamba kwambiri, olondola kwambiri.

Thermal Spray Technology: Ufa umadyetsedwa mu lawi lotentha kwambiri kapena mtsinje wa plasma, wosungunuka, kenako nkuwapopera pa liwiro lalikulu pagawo laling'ono kuti apange zokutira zosavala, zosagwirizana ndi dzimbiri, komanso zosagwirizana ndi okosijeni. Amagwiritsidwa ntchito kwambiri mumasamba a injini, mapaipi amafuta, etc.

Magawo Ena: Zimaphatikizansopo ma phala opangira zamagetsi zamagetsi, zothandizira pamakampani opanga mankhwala, ndi zida zamphamvu zachitetezo.

Mapulogalamu apamwamba kwambiriwa amaika zofunikira kwambiri pakukula kwa tinthu tating'ono ta chitsulo, sphericity, oxygen content, flowability, ndi kachulukidwe koonekera.

2. Mitundu Yosiyanasiyana Yopanga Ufa: Chifukwa Chiyani Atomization Yamadzi Imaonekera Kwambiri?

Ukadaulo waukulu wopangira ufa wachitsulo ukhoza kugawidwa m'njira zakuthupi (mwachitsanzo, atomization), njira zamankhwala (mwachitsanzo, kuyika kwa mpweya wamankhwala, kuchepetsa), ndi njira zamakina (mwachitsanzo, mphero). Zina mwa izo, atomization ndiyo njira yodziwika bwino chifukwa chakuchita bwino kwambiri, mtengo wake wokhazikika, komanso kukwanira kwa kupanga mafakitale.

Atomization imagawidwanso kukhala ma atomization a gasi ndi atomization yamadzi kutengera sing'anga yomwe imagwiritsidwa ntchito.

Atomization ya Gasi: Imagwiritsa ntchito mpweya wothamanga kwambiri (mwachitsanzo, argon, nayitrojeni) kukhudza chitsulo chosungunuka, ndikuchiphwanya kukhala madontho abwino omwe amalimba kukhala ufa. Ubwino wake ndi monga kuchuluka kwa ufa komanso kuwongolera kwabwino kwa okosijeni. Zoyipa zake ndi zida zovuta, kukwera mtengo kwa gasi, kugwiritsa ntchito mphamvu zambiri, komanso zokolola zochepa za ufa wapamwamba kwambiri.

Atomization Yamadzi: Imagwiritsa ntchito jets zamadzi zothamanga kwambiri ngati njira yosweka. Kutentha kwamadzi m'madzi, chifukwa cha kuzizira kwake mwachangu, kumapanga ma ufa osakhazikika (osalala kapena ozungulira) okhala ndi okosijeni wambiri, omwe amagwiritsidwa ntchito m'magawo omwe mawonekedwe ake ndi osafunikira, monga zitsulo ndi zowotcherera.

Ukadaulo wotentha kwambiri wazitsulo zamadzi am'madzi ndi njira yatsopano yopangira ma atomization amadzi am'madzi, kuphatikiza mwanzeru kugwiritsa ntchito bwino kwa atomization yamadzi ndi mawonekedwe apamwamba a gasi.

3. Kuchepetsa Kutentha Kwambiri kwa Metal Water Atomization Powder Production Machine: Kodi Imagwira Ntchito Motani?

Lingaliro lalikulu la mapangidwe a atomizer amadzi otentha kwambiri ndi: kutulutsa madontho azitsulo bwino momwe angathere ndikuwalola kukhala ozungulira asanakhudze madzi.

Njira yake yogwirira ntchito imatha kufotokozedwa mwachidule m'magawo akulu awa:

(1) Kusungunuka ndi Kutentha Kwambiri: Zitsulo kapena aloyi zopangira zimasungunuka mu ng'anjo yotenthetsera yapakati-pang'onopang'ono pansi pa vacuum kapena mlengalenga woteteza ndikutenthedwa ndi kutentha kwambiri kuposa momwe zimasungunuka (m'malo "otentha kwambiri", nthawi zambiri 200-400 ° C kumtunda). Kutentha kwapamwamba kumachepetsa kwambiri kukhuthala kwachitsulo chosungunula ndi kugwedezeka kwapamtunda, chomwe ndi chofunikira chofunikira pakupanga mapangidwe abwino ndi ozungulira.

(2) Kutsogola ndi Kuthira Kokhazikika: Chitsulo chosungunuka chimapanga mtsinje wokhazikika kudzera pamphuno yapansi. Kukhazikika kwa mtsinjewu n'kofunika kuti ufa wofanana ugawidwe.

(3) Atomization Yakuthamanga Kwambiri: Ichi ndiye maziko aukadaulo. Mtsinje wachitsulo umakhudzidwa ndendende ndi nozzle ya atomization ndi ma jets angapo amadzi amphamvu kwambiri (mpaka 100 MPa kapena kupitilira apo) kuchokera kosiyanasiyana. Kuthamanga kwambiri kwamadzi kumapangitsa ma jets kukhala ndi mphamvu zazikulu za kinetic, zomwe zimatha 粉碎 (fensui: kuphwanya) kutsika kwamakamakamakamaka, kutsika-kutsika-kutsika-kutsika kwachitsulo chitsulo chotentha kwambiri kukhala madontho abwino kwambiri.

(4) Kuwuluka ndi Spheroidization: Madontho achitsulo ophwanyidwa amakhala ndi nthawi yokwanira panthawi yowuluka mpaka pansi pa nsanja ya atomization kuti agwirizane m'magawo abwino pansi pa kugwedezeka kwa pamwamba. Zidazi zimapanga malo abwino kwambiri a droplet spheroidization poyendetsa bwino mlengalenga mkati mwa nsanja ya atomization (yomwe nthawi zambiri imakhala ndi mpweya woteteza ngati nayitrogeni) komanso mtunda wothawa.

(5) Kulimbitsa Mwachangu ndi Kutolere: Madontho ozungulira amalimba mwachangu akagwera mu thanki yosonkhanitsira yoziziritsidwa ndi madzi pansipa, kupanga ufa wolimba wozungulira. Njira zotsatila monga kuthira madzi, kuyanika, kuyeza, ndi kusakaniza zimabweretsa zomaliza.

4. "Kuthandiza" kwa Atomization ya Madzi Otentha Kwambiri: Kusanthula Kwakukulu kwa Ubwino

Imawerengedwa kuti ndi "yabwino" chifukwa imayankha zowawa zingapo pakupanga ufa wapamwamba kwambiri:

1. Zokolola Zaufa Wapamwamba Kwambiri: Uwu ndiye mwayi wake wofunikira kwambiri. Kuphatikizika kwa kuthamanga kwamadzi kopitilira muyeso komanso ukadaulo wowotcha kwambiri wazitsulo kumawonjezera zokolola za ufa wapamwamba kwambiri mu 15-25μm mpaka kangapo kuposa za atomization yamwambo, kuchepetsa kwambiri ndalama zopangira ma unit.

2. Powder Sphericity Yabwino Kwambiri: Kutentha kwakukulu kumachepetsa kugwedezeka kwachitsulo chosungunuka pamwamba, ndipo njira zokongoletsedwa za atomization zimapangitsa kuti ufa ukhale pafupi kwambiri ndi ufa wa mpweya wa atomiki, kukwaniritsa mokwanira zofunikira za kusindikiza kwa 3D ndi MIM.

3. Zomwe zili ndi Oxygen Wochepa: Ngakhale kugwiritsa ntchito madzi ngati sing'anga kumayambitsa zoopsa za okosijeni, miyeso ngati mapangidwe a nozzles, kudzaza chipinda cha atomization ndi mpweya woteteza, ndi kuwonjezera ma antioxidants oyenerera amatha kulamulira bwino mpweya wa okosijeni pamagulu otsika (kwa aloyi ambiri, pansi pa 500 ppm), kukwaniritsa zofunikira zambiri zogwiritsira ntchito.

4. Mtengo Wofunika Wopanga Mtengo: Poyerekeza ndi atomization ya gasi pogwiritsa ntchito mpweya wokwera mtengo wa inert, mtengo wamadzi ndi wochepa kwambiri. Kugulitsa kwa zida ndikugwiritsa ntchito mphamvu zamagetsi kumakhalanso kotsika poyerekeza ndi zida zamagetsi zamagetsi zomwe zimafanana, zomwe zimapangitsa kuti pakhale chuma chopanga mafakitale akuluakulu.

5. Kusinthasintha Kwazinthu Zowonjezereka: Zoyenera kupanga ufa kuchokera ku chitsulo, nickel-based, cobalt-based alloys to cobalt alloys to cobalt alloys, aluminium alloys, tin alloys, etc., kusonyeza kusinthasintha kwamphamvu.

5. Mithunzi Pansi pa Kuwonekera: Kuyang'ana Mwachidwi Mavuto Ake ndi Zolepheretsa

Palibe ukadaulo wangwiro; Kutentha kwambiri kwa madzi a atomization kuli ndi malire ake ogwira ntchito ndi zovuta kuthana nazo:

1. Kwa Zitsulo Zomwe Zimagwira Ntchito Kwambiri: Pazitsulo zogwira ntchito monga titaniyamu, tantalum, ndi niobium, zomwe zimakhala zovuta kwambiri ku okosijeni, chiopsezo cha okosijeni kuchokera m'madzi amadzi chimakhalabe chokwera, zomwe zimapangitsa kuti zikhale zovuta kupanga ufa wokhala ndi mpweya wochepa kwambiri (mwachitsanzo, <200 ppm). Zidazi pakadali pano ndizomwe zimayendera matekinoloje monga inert gas atomization kapena plasma rotating electrode process (PREP).

2. "Satelliting" Chodabwitsa: Panthawi ya atomization, ena olimba kale kapena theka-okhazikika ang'onoang'ono a ufa amatha kukhudza madontho akuluakulu ndikuwatsatira, kupanga "mipira ya satellite," yomwe ingakhudze kufalikira kwa ufa ndi kufalikira. Iyenera kuchepetsedwa ndikuwongolera magawo azinthu.

3. Kuvuta kwa Kuwongolera Njira: Kupanga ufa wapamwamba kwambiri kumafuna kulondola kwa 协同 (xietong: 协同 kugwirizana) kuwongolera magawo ambiri monga kutentha kwachitsulo, kuthamanga kwa madzi, kuthamanga kwa madzi, kapangidwe ka nozzle, ndi kuwongolera mlengalenga, kuyimira chotchinga chapamwamba chaukadaulo.

4. Kubwezeretsanso Madzi ndi Kuchiza: Kupanga kwakukulu kumafunikira njira zoziziritsira zoziziritsa bwino zamadzi ndi njira zoyeretsera madzi oyipa, ndikuwonjezera zovuta pazothandizira.

6. Kutsiliza: Kodi Ndi Bwinodi Chomwecho?

Yankho ndilakuti: Mu gawo la ukatswiri, inde, ndi "zabwino" kwambiri.

Makina opangira madzi a zitsulo zotentha kwambiri sakufuna kusintha maukadaulo ena onse opanga ufa. M'malo mwake, imagwira ntchito ngati yankho laukadaulo lomwe limakwaniritsa bwino pakati pakuchita bwino kwambiri, kutsika mtengo, komanso mtundu wapamwamba kwambiri, zomwe zimakwaniritsa kufunikira kwa msika wa ufa wachitsulo wozungulira kwambiri.

Ngati cholinga chanu chachikulu ndi kupanga ufa wochuluka kwambiri kuchokera ku zinthu monga zitsulo zosapanga dzimbiri, zitsulo zachitsulo, zosakaniza zotentha kwambiri, ma aloyi a cobalt-chromium, ma aloyi amkuwa, kuti mugwiritse ntchito kusindikiza kwa 3D, MIM, kupopera mbewu mankhwalawa, ndi zina zotere, ndipo muli ndi zofunika kwambiri pakuwongolera mtengo, ndiye kuti njira yowoneka bwino yamadzi otenthetsera ndi njira yolumikizirana ndi madzi. Zimapangitsa "mastering" kupanga ufa wachitsulo wapamwamba kwambiri kukhala wotheka.

Komabe, ngati mankhwala anu ndi aloyi wa titaniyamu kapena zitsulo zina zogwira ntchito zomwe zimafuna kuwongolera kokwanira kwa okosijeni pamapulogalamu apamwamba amlengalenga, mungafunike kuganizira zina monga ma atomu okwera mtengo a gasi kapena matekinoloje a plasma atomization.

Mwachidule, makina opangira zitsulo zam'madzi otentha kwambiri a atomization ndiwopambana kwambiri pakupanga ukadaulo wamakono wazitsulo. Imagwiritsa ntchito kuganiza kwatsopano kuthetsa chikhalidwe cha 矛盾 (maodun: kutsutsana) pakati pa mtundu ndi mtengo, kukhala injini ina yamphamvu yomwe ikuyendetsa chitukuko cha zopanga zapamwamba. Posankha, kumvetsetsa bwino zinthu zanu, zomwe mukufuna, komanso zabwino ndi zoyipa zaukadaulo ndikofunikira kuti mupange chisankho chanzeru komanso "kuzindikira" kupanga ufa wachitsulo wapamwamba kwambiri.