1. Product Principles uye Microstructural Characteristics
1.1 Chimiro uye Crystallographic Hunhu hweAl ₂ O FIVE
(Alumina Ceramic Mabhora， Alumina Ceramic Mabhora)
Alumina ceramic balls zvinhu zvakatenderedzwa zvakagadzirwa kubva kuchiedza uremu aluminium oxide (Al ₂ O MATANHU), a oxidized zvachose, polycrystalline ceramic iyo inoratidza kusimba kunoshamisa, makemikari inertness, uye kugadzikana kwekupisa.
Iyo huru yekristaro nhanho mune yakakwirira-kuita alumina mabhora ndeye α-alumina, iyo inombundira corundum-mhando yehexagonal yakavharwa-yakavharwa chimiro uko huremu huremu hwealuminium ion hunogara zvikamu zviviri kubva muzvitatu zve octahedral interstices mukati meokisijeni anion lattice., ichipa yakakwira latticework simba uye kuramba kune chikuva makeover.
Industrial-giredhi alumina mabhora anowanzo sanganisira 85% ku 99.9% Al Vaviri O Vshanu, nekuchena kunobata zvakananga mechanical stamina, pfekai kuramba, uye kuita ngura.
High-kuchena unhu (≥ 95% Al ₂ O ZVISHANU) dzakasiirwa kusvika padhuze-inoretical gobvu (> 99%) kushandisa nzira dzepamberi senge kudzvanyirirwa sintering kana inodziya isostatic pushing, kuderedza porosity uye intergranular zvinetso izvo zvinogona kuita sezvinokonzera kufunganya.
Iyo inoguma microstructure ine yakanaka, equiaxed zviyo zvakapararira zvakafanana muhuwandu, nezviyo zviyero zvinowanzosiyana kubva 1 ku 5 micrometers, kuwedzeredzwa kudzikamisa kusimba uye kusimba.
1.2 Mechanical uye Yenyama Property Profile
Alumina ceramic rounds dzinozivikanwa nekusimba kwavo kwakasimba– yakatemwa kusvika kuma1800– 2000 HV pachiyero cheVickers– kupfuura simbi zhinji uye kukwikwidza tungsten carbide, zvichiita kuti dzive dzakanakira nzvimbo dzinonyanya kupfeka.
Kusimba kwavo kwakanyanya (kusvika pa 2500 MPa) inochengetedza dimensional kuchengetedzwa pasi pemutoro, nepo yakaderedzwa flexible contortion inowedzera iko kurongeka nekukuya maapplication.
Pasinei ne brittleness yavo maererano nesimbi, alumina marounds anoratidza kusasimba kwekutyoka kweceramics, kunyanya kana kukura kwezviyo kunodzorwa mukati mekuita sintering.
Ivo vanochengetedza kutendeseka kwechimiro mukati mehombe tembiricha yemazinga array, kubva kumatambudziko e-cryogenic zvakanyanya 1600 ° C mune oxidizing ambiences, inodarika miganhu yekupisa yepolymer kana simbi yakaenzana.
Uyezve, yavo yakaderera thermal yekuwedzera coefficient (~ 8 × 10 ⁻⁶/ K) inoderedza kupisa kwekuvhunduka, kugonesa kushandiswa mukukurumidza kushandura nharaunda dzekupisa senge kilns uye kupisa exchanger.
2. Manufacturing Matanho uye Kudzora Kwemhando
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2.1 Kugadzira uye Sintering Techniques
Kugadzirwa kwealumina ceramic spheres kunotanga nepamusoro-kuchena alumina poda, inowanzobva kune calcined bauxite kana kemikari inonaya hydrates, iyo inogezwa kuita submicron bit dimension uye slim dimension kugovera.
Powders mushure meiyo yakagadzirwa kuita yakatenderedza-inoshamwaridzika miviri inoshandisa nzira dzakadai seextrusion-spheronization, pfapfaidza kuomesa, kana kuti bhora riri kukura mumapani, kuvimba nehukuru hunodiwa uye seti siyana.
Mushure mekugadzira, eco-friendly spheres inotora binder kuneta nhanho inoteedzerwa nepamusoro-tembiricha sintering, kazhinji pakati 1500 °C uye 1700 °C, uko diffusion masisitimu anofambisa densification uye zviyo coarsening.
Kudzora kwakananga kwe sintering nharaunda (mhepo kana kuti inodzorwa okisijeni chikamu chekushushikana), mutengo wekupisa imba, uye nguva yekugara yakakosha pakuwana yunifomu kuderera, round geometry, uye kukanganisa mukati memukati.
Zvekushandisa zvakanyanya-yepamusoro-soro, post-sintering therapies senge inopisa isostatic pushing (HIP) inogona kuiswa kubvisa yakasara microporosity uye kuwedzera kunatsiridza kutendeseka kwemichina.
2.2 Hurukuro Kupedzisa uye Metrological Simbiso
Kunamatira ku sintering, maalumina anotenderedzwa pasi uye anovhenekerwa achishandisa dhaimondi-yakamisikidzwa midhiya kuti iwane yakasimba dimensional kupikisa uye machira epamhepo anofananidzwa nemabhora esimbi anotakura..
Kukasharara kwenzvimbo kunowanzo kuderedzwa kusvika kushoma pane 0.05 μm Ra, kuderedza kupokana uye kupfeka mumamiriro ekufona.
Yakakosha yemhando yepamusoro maitiro ane sphericity (kusapindirana kubva kune yakanakisa satiation), kusiyana kwedhayamita, kugadzikana kwepamusoro, uye ukobvu kufanana, imwe neimwe yakatsunga kushandisa optical interferometry, kurongeka kuona equipments (CMM), uye laser profilometry.
International mwero senge ISO 3290 uye ANSI/ABMA inotsanangura magiredhi ekupikisa eceramic spheres anoshandiswa mumabearings, kuvimbisa kuchinjika uye kuita zvakafanana kune vese vatengesi.
Nzira dzisiri dzekuparadza dzekuyedza senge ultrasonic assessment kana X-ray microtomography dzinoshandiswa kutsvaga mukati memukati makatsemuka., mapana, kana kuwedzera kunogona kukanganisa kuvimbika kunogara.
3. Zvinobatsira Zvinobatsira Pamusoro peMetallic uye Polymer Counterparts
3.1 Kemikari uye Rust Resistance muHash Environments
Imwe yeakanakisa mabhenefiti ealumina ceramic mabhora ndiko kuramba kwavo kwepamusoro kurwisa kemikari.
Vanoramba vachiva inert mukuvapo kwemaasidhi akasimba (kunze kwehydrofluoric acid), antacid, organic solvents, uye saline sarudzo, kuita kuti dzive dzakakodzera kushandiswa mukubata makemikari, kugadzirwa kwemishonga, uye mashandisirwo emugungwa uko simbi inoumba marara nokukurumidza.
Inertness iyi inodzivirira kusvibiswa kwesevhisi media, chinhu chinokosha pakugadzirisa zvokudya, semiconductor kugadzira, uye biomedical zvishandiso.
Kusiyana nesimbi inotenderera, alumina haigadziri ngura kana simbi ions, kuita shuwa process kuchena uye kudzikisa kuchengetedza nguva dzose.
Yavo isiri-magineti chimiro zviri nani inowedzera kushanda kune MRI-inoenderana zvishandiso uye dhijitari mitsara yekusangana uko kupindira kwemagineti kunoda kuvharirwa..
3.2 Shandisa Resistance uye Hupenyu Hwakareba Hwebasa
Mune abrasive kana high-cycle settings, alumina ceramic spheres anoratidza kupfeka mareti maodha ehukuru hwakaderera pane simbi kana polymer sarudzo.
Uku kusimba kunoshamisa kunoshandura kuita nguva dzemhinduro dzakawedzerwa, yakaderera nguva, uye yakaderera mutengo wezvinhu zvese zvisinei nemitengo yekutenga yekutanga.
Iwo anoshandiswa zvakanyanya seanokuya midhiya mumatenderedzwa mill yekuparadzira pigment, mineral processing, uye nanomaterial synthesis, uko inertness yavo inodzivirira kusvibiswa uye kusimba kwavo kunogonesa kuderera kwechikamu chekukura.
Mumagetsi zvisimbiso uye zvikamu zvevharuvhu, alumina matenderedzwa anochengeta mashoma kushivirira pamusoro peasingaverengeki kutenderera, kumira kusvika pakuparara kubva kumvura inotakura zvinhu.
4. Industrial uye Arising Applications
4.1 Bearings, Shutoffs, uye Liquid Handling Systems
Alumina ceramic spheres yakakosha kune yakasanganiswa sphere mabhengi, kwavanosanganiswa nesimbi kana silicon nitride mijaho kuti ibatanidze yakaderera density uye ngura kuramba kweceramics nekuoma kwesimbi..
Ukobvu hwavo hushoma (~ 3.9 g/cm MBIRI, maererano 40% yakareruka kupfuura simbi) inodzikisa centrifugal kurodha pakumhanya kwakanyanya kutenderera, kugonesa kukurumidza kushanda nekudzikisira kudziya chizvarwa uye yakawedzera simba kushanda.
Mabhengi akadaro anoshandiswa mumaspindles anomhanya-mhanya, mazino handpieces, uye aerospace masisitimu uko kuvimbika pasi pemamiriro akaomarara kwakakosha.
Mune fluid control applications, alumina mabhora anoshanda secheki shutoff zvinhu mumapombi uye metering zvishandiso, kunyanya kumakemikari ane hasha, high-purity mvura, kana ultra-high vacuum systems.
Yavo yakatsetseka yepasi uye dimensional chengetedzo inovimbisa inodzokororwa kuchengetedza kunyatsoita uye kuramba galling kana kutora.
4.2 Biomedical, Energy, uye Advanced Modern Technology Uses
Zvakapfuura mwero maindasitiri mabasa, alumina ceramic rounds vari kutsvaga kushandiswa mune biomedical implants uye yekuongorora michina nekuda kweiyo biocompatibility uye radiolucency..
Iwo anoshandiswa mumajoini akagadzirwa nevanhu uye mazino prosthetics uko kupfeka zvimedu zvinofanirwa kudzikiswa kumisa kuzvimba mhinduro..
Mumagetsi emagetsi, vanoshanda seinert tracers mukuchengetedza matangi maitiro kana sezvinhu zvinopisa-zvakagadzikana mune zvakatariswa simba rezuva uye gasi cell magungano..
Chidzidzo chetsvagurudzo chiri kutarisawo mabhora ealumina anoshanda ekutsigira catalytic, sensing unit components, uye nemazvo maitiro ekugadzirisa muhupamhi.
Muchidimbu, alumina ceramic mabhora anoratidza maitiro matsva e ceramics anobatanidza mukaha pakati pekuoma kwechimiro uye kurongeka chaiko..
Yavo-ye-ye-yemhando musanganiswa wekusimba, makemikari inertness, thermal security, uye kurongeka kwedimensional kunoita kuti zvive zvakakosha zveinjiniya masisitimu munzvimbo dzakasiyana siyana.
Sezvo maitiro ekugadzira anoramba achivandudza, kugona kwavo uye chiyero chekushandisa zvinotarisirwa kuwedzera zvirinani muchizvarwa chinotevera matekinoroji.
5. Provider
Yepamberi Ceramics yakavambwa muna Gumiguru 17, 2012, ibhizimusi repamusoro-soro rakazvipira mukutsvagisa nekusimudzira, production, processing, kutengesa uye hunyanzvi masevhisi eceramic hama zvinhu zvakaita seAlumina Ceramic Mabhora. Zvigadzirwa zvedu zvinosanganisira asi zvisingagumire kuBoron Carbide Ceramic Zvigadzirwa, Boron Nitride Ceramic Zvigadzirwa, Silicon Carbide Ceramic Zvigadzirwa, Silicon Nitride Ceramic Zvigadzirwa, Zirconium Dioxide Ceramic Zvigadzirwa, etc. Kana uchifarira, ndapota inzwa wakasununguka kutibata nesu.([email protected])
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