Maitiro Ekugadzira Brown Corundum Micropowder uye Kudzora Hunhu
Pinda mufekitori chero ipi zvayo inogadzira midziyo yemagetsi, uye mhepo inozadzwa nekunhuhwirira kweguruva resimbi, pamwe chete nekurira kwemuchina wekukuya. Maoko evashandi akazorwa mafuta matema, asi upfu hwebrown hunopenya pamberi pavo—hupfu hwebrown corundum micropowder—ndiyo "mazino" akakosha uye "mupendero wakapinza" weindasitiri yemazuva ano. Chinhu ichi chakaoma, chinozivikanwa se "corundum" nevaya vari mukati meindasitiri, chinoshanduka kubva padombo kuita upfu hwakatsetseka, kuyedzwa kwekupisa kwakanyanya uye kunyatsojeka.
1. Moto weChiuru Chemadhigirii: Maitiro Ekugadzira Brown Corundum Micropowder
Hupfu hwebrown corundum micropowderinotanga semapundu ebauxite asinganyanyi kukosha. Musarerutsa mapundu aya evhu; anofanira kunge ari matombo emhando yepamusoro ane Al₂O₃ iri mukati me85% kuti akwanise kunyungudutswa. Panosvika nguva yekuvhurika kwechoto chekunyungudutswa, chinhu chinoshamisa—tembiricha iri mukati mechoto chemagetsi chinokwira, ichisvika pamusoro pe2250°C. Bauxite, pamwe chete nemafirita esimbi necoke, inodonha nekunyunguduka mumoto wakasimba, ichichenesa nekubvisa tsvina, zvichizopedzisira zvaita maburi ebrown corundum. Sarudzo yerudzi rwechoto inewo yayo: choto chinotsvedza chinopa kuyerera kwakanaka uye kuchena kwakanyanya, chakakodzera zvigadzirwa zvakanaka; choto chinogara chakagadzirwa chinopa kubuda kwepamusoro uye mutengo wakaderera. Vagadziri vanowanzo sarudza zvichienderana nekudiwa.
Corundum yebhurauniZvivharo zvitsva kubva muchoto zvichiri "roughs," kure nekuva upfu hwakatsetseka. Tevere, crusher inotora: roller crusher ine meno maviri yekupwanya coarse, ichipwanya bulk, nepo vertical impact crusher ichipwanya zvakanaka, ichipwanya zvidimbu kuita zvidimbu zvemamilimita. Asi handizvo chete—kupatsanurana kwemagineti nekubvisa iron zvakakosha pamhando yepamusoro. Kana yabatidzwa, magnetic separator ine gradient yepamusoro inogona kubvisa zvachose chero simbi yasara kubva muzvinhu. Magnetic separator ine simba guru inoshandiswa nemakambani akaita saHenan Ruishi inogona kuderedza Fe₂O₃ kusvika pasi pe0.15%, ichiisa hwaro hwekutsvaira kunotevera.
Tangi rekutsvaira rinewo zvakavanzika. Mushonga we hydrochloric acid we 15%-25% unoshandiswa kwemaawa 2-4. Pamwe chete ne "push-pull cleaning device" yeZhenyu Grinding ine patent, upfu hunozununguswa hwogezwa, zvichinyungudutsa tsvina yakaita sesilicon ne calcium, zvichiwedzera kuchena kweupfu hwakatsetseka. Danho rekupedzisira rekuongorora rakafanana ne "draft": mascreen anodedera anopa kuvharwa kunoramba kuripo, achiparadzanisa zvidimbu zvidiki kubva kune zvakakora kusvika kune zvakatsetseka. Mudziyo weChongqing Saite Corundum une patent yekuongorora unotobatanidza zvidimbu zvitatu zvemascreen pamwe nehafu yechikamu, zvichiita kuti saizi yezvidimbu ive chaiyo sekunge yakayerwa neruler. Upfu hwakatsetseka hwakaseferwa hunozonyorwa sezvinodiwa—200#-0 uye 325#-0 ndiwo matsananguro akajairika. Particle imwe neimwe yakafanana sejecha, kubudirira kwechokwadi.
2. Kuongorora Kwakanaka: Nzira Yekuvandudza Hunhu hweMicropowder
Upfu hwe brown corundum hunoshandiswa kupi? Kubva pakupukuta magirazi efoni kusvika kumafurni esimbi, kunyangwe kuderera kudiki kwekushanda kunogona kukonzera hasha dzevatengi. Saka, kudzora mhando chinhu chinogara chichikonzera kusagadzikana mufekitori. Kutanga, funga nezvemakemikari—Al₂O₃ inofanira kunge iri ≥95% (zvigadzirwa zvepamusoro zvinoda ≥97%), TiO₂ ≤3.5%, uye SiO₂ naFe₂O₃ zvinofanira kuchengetwa mukati me1% ne0.2% zvichiteerana. Matekiniki erabhoritari anotarisa spectrometer zuva nezuva; kunyangwe kuchinja kudiki mudata kunogona kutungamira pakugadzirisazve batch yese.
Kuedzwa kwezvivakwa kwakaoma zvakaenzana:
Kuomarara kweMohs kunofanira kusvika 9.0. Muenzaniso unokwenywa paplate reference; chero chiratidzo chekupfava chinoonekwa sekukundikana.
Kuwanda kwechokwadi kwakaganhurirwa ku3.85-3.9 g/cm³. Kutsauka kunoratidza dambudziko nechimiro chekristaro.
Kuedza kwekusashandisa simba remagetsi kwakaoma zvikuru—kupwanya neupfu mushure mekukandwa muchoto che1900°C kwemaawa maviri? Batch yese yabviswa!
Kufanana kwehukuru hwezvikamu zvakakosha pakukwesha mhedzisiro. Muongorori wemhando yepamusoro anoparadzira chipunu cheupfu pasi pechina chekuongorora saizi yezvikamu chelaser. Chero kutsauka muhuwandu hweD50 hunodarika 1% kunoonekwa sekukundikana. Pamusoro pezvose, saizi yezvikamu isina kuenzana ichaita kuti pave nemavanga kana mavanga pamusoro pesimbi yakakweshwa, zvichikonzera kugunun'una kubva kune vatengi.
Gwaro renyika reGB/T 2478-2022, rakagadziriswazve muna 2022, rave kushandiswa neindasitiri. Gwaro iri gobvu rehunyanzvi rinodzora zvese kubva pakuumbwa kwemakemikari uye chimiro chekristaro kusvika pakurongedza nekuchengeteracorundum yebrownSemuenzaniso, zvinoda kuti α-Al₂O₃ iratidze chimiro chekristaro chetrigonal. Pane musiyano pakati pekristaro uchishandisa maikorosikopu here? Ndine urombo, chigadzirwa ichi chichavharwa! Vagadziri ikozvino vanofanirwa kunyoresa tembiricha yemudura uye mwero wehunyoro—vachitya kuti hupfu hudiki huchanyorova uye huchaungana, zvichikanganisa mukurumbira wavo.
3. Kushandura Marara Kuita Pfuma: Tekinoroji Yekudzokorodza Inoputsa Dambudziko Rezviwanikwa
Indasitiri ye corundum yagara ichitambura nekuunganidzwa kwemarara anobvisa tsvina uye mavhiri ekukuya, izvo zvisingatore nzvimbo chete asiwo zvinosvibisa nharaunda. Zvisinei, mumakore maviri apfuura, tekinoroji ye "corundum yakadzokororwa" yakabuda, ichipa marara matsva mukana mutsva wekushanda. Patent itsva muYingkou, Liaoning Province, yakatora danho rekugadzirisazve: chekutanga, marara e corundum anopiwa "bath" yekubvisa tsvina, ichiteverwa nekupwanywa nekuparadzaniswa kwemagnetic, uye pakupedzisira, kuchekwa kwakadzika ne hydrochloric acid. Maitiro aya anowedzera kubviswa kwetsvina ne40%, zvichiita kuti mashandiro ezvinhu zvakadzokororwa ave pedyo neaya e virgin micropowder.
Kushandiswa kwezvinhu zvakadzokororwa kuri kuwedzerawo. Mafekitori anodzokorodza zvinhu anoda kuishandisa kugadzira ivhu retaphole—rinofanira kusanganiswa muzvinhu zvinogadziriswa, uye zvinhu zvakadzokororwa zvinopa mari shoma. Zviri nani, maitiro ekudzokorora zvinhu anoderedzacorundum yebrownmitengo ne15%-20%, zvichiita kuti vakuru vekambani vafare zvikuru. Zvisinei, varwi vemaindasitiri vanoyambira kuti: "Kupukuta nemazvo kunoda zvinhu zvisina kuchena zvemhando yepamusoro. Kana kusvibiswa kudiki kukasanganiswa nezvinhu zvakadzokororwa, nzvimbo yacho inoonekwa negirazi inobva yangoerekana yaonekwa!"
4. Mhedziso: Upfu hweMicro, Hudiki Zvahwo, Hunotakura Huremu hweMaindasitiri
Kubva pamarimi emoto anopfuta emagetsi kusvika pakunzwika kwemaseparator emagineti, kubva pakuputirwa kwematangi ekugadzira kusvika pamitsetse yekuongorora ye laser particle size analyzers—kuzvarwa kwebrown corundum micropowder chinhu chidiki cheindasitiri yemazuva ano. Mapatenti matsva, zviyero zvitsva zvenyika, uye tekinoroji yakadzokororwa zviri kuramba zvichikwidza denga reindasitiri. Kuda kwemaindasitiri epasi pevhu kwekugadzirisa pamusoro pemvura kwakanyanya kuri kuramba kuchikwidza mhando yemicropowder. Pamutsetse wekubatanidza, mabhegi ebrown powder anovharwa uye anotakurwa mumarori, achienda kumafekitori munyika yese. Angave asina kurumbidzwa, asi anotsigira simba guru reMade in China, pasi pepamusoro pepolish yayo yepamusoro.