Amaphuzu Obuhlungu Bokupholisha Isikhunta
Noma ubani osebenze embonini yesikhunta iminyaka engaphezu kweshumi uyazi ukuthi nakuba ukupholisha kubonakala kulula, empeleni kuyinkimbinkimbi impela. Abakhiqizi abaningi besikhunta bathola inqubo yokupholisha iyinkinga kakhulu - idla isikhathi, imiphumela ayiguquguquki, futhi incike kakhulu kokuhlangenwe nakho kochwepheshe. Lokhu kuyiqiniso ikakhulukazi manje, ngokuhlukahluka okwandayo kwezinto zesikhunta, kusukela ensimbini yendabuko ye-P20 kuya kokuqina okuphezulu kwe-S136, ngisho ne-carbide eqinisiwe kanye nezinto ze-ceramic. Izinto nezinqubo zokupholisha zendabuko zivame ukwehluleka. Umphathi we-workshop yokupholisha efektri yesikhunta esinembile eShenzhen ungitshele ukuthi, “Ngaphambilini, sasisebenzisa i-boron carbide kanye ne-diamond powder, okwasebenza kahle, kodwa izindleko zaziphezulu kakhulu; amafektri amaningi amancane ayengenakukwazi ukuyikhokhela. I-corundum powder evamile ivame ukuklwebheka, futhi ngezinye izikhathi, ngemva kokupholisha, ngaphansi kwezimo ezithile zokukhanya, kusenamabala afiphele.”
"Izimfanelo Ezingavamile" ze-White Fused Alumina Micro-powder
Isizathui-alumina encane emhlophe ehlanganisiweIsebenza kahle kakhulu ekupholiseni isikhunta kunqunywa “ukwakheka kwayo kwezakhi zofuzo.” Ingxenye yayo eyinhloko yi-α-aluminium oxide, enokuhlanzeka okungaphezu kuka-99%. Kusho ukuthini lokhu kuhlanzeka? Kusho ukungcola okuncane, okwenza kube lula ukubangela imihuzuko ngengozi ngesikhathi senqubo yokupholisha. Kufana nokusila ukhuni ngephepha elincane; uma iphepha liqukethe okusanhlamvu okumbalwa okuqinile, ubuso buzokonakala. Enye inzuzo yokuhlanzeka okuphezulu ubulukhuni obufanayo. I-alumina emhlophe ehlanganisiwe inobulukhuni bukaMohs obungu-9.0, obulandela idayimane ne-silicon carbide kuphela, kodwa inzuzo yayo itholakala ekuqineni kwayo okuqinile. Labo abapholisha bayaqonda ukuthi uma izinhlayiya eziklwebhayo zinobulukhuni obungaguquguquki, izinhlayiya ezithambile zidliwa kuqala, kanti izinhlayiya eziqinile ziphuma, zibangele imihuzuko kalula. I-alumina emhlophe ehlanganisiwe i-micro-powder isebenza “ngokufanayo” kulokhu.
Ubuhlakani Bokwakheka Kwezinhlayiyana
Ngonyaka odlule, ngavakashela isitshalo sokukhiqiza i-alumina micro-powder emhlophe ehlanganisiwe eJiangsu, futhi umphathi wezobuchwepheshe wangibonisa isithombe sokuqhathanisa ngaphansi kwe-microscope ye-electron: “Bheka, lena yi-i-alumina encane emhlophe ehlanganisiwe sikhiqiza; izinhlayiya ikakhulukazi zinonxande noma zicishe zibe yindilinga, futhi imiphetho iphathwe ngokukhethekile ukuze ibe yindilinga. Ngakolunye uhlangothi, i-alumina micro-powder evamile ensundu ehlanganisiwe, inezimo ezingajwayelekile kanye nemiphetho ebukhali.” Lo mehluko ubalulekile ekupholisheni isikhunta. Nakuba imiphetho ebukhali inikeza amandla okusika aqinile, ivame ukubangela imihuzuko; izinhlayiya ezizungezile, ngakolunye uhlangothi, zisebenza kakhulu “njengokugoqa nokugaya” kunokuthi “zisike,” okwenza zifaneleke kakhulu ekupholisheni isikhunta esidinga ukuqeda okuphezulu kakhulu kwendawo. Izinzuzo zezinhlayiya ezizungezile zibonakala kakhulu lapho kupholishwa izindawo okunzima ukuzifinyelela njengezindawo ezigobile namakhona angaphakathi.
Ubuciko Bokulawula Usayizi Wezinhlayiya
I-white corundum micro-powder ifinyelela izinga elihle kakhulu lokulawula usayizi wezinhlayiya. Ama-abrasives okupholisha endabuko avame ukuchazwa ngokuthi “i-2000 mesh” noma “i-3000 mesh,” kodwa empeleni, ukusatshalaliswa kosayizi wezinhlayiya kungasukela ku-1500 mesh kuya ku-3500 mesh. Nokho, i-white corundum micro-powder esezingeni eliphezulu ingafinyelela ukusatshalaliswa kosayizi wezinhlayiya ezincane. Isibonelo, umkhiqizo obhalwe ukuthi i-W7 (olingana ne-2500 mesh) uzoba nezinhlayiya ezingaphezu kuka-95% ngaphakathi kobubanzi be-W6.5-W7.5.
Kubaluleke kangakanani ukusatshalaliswa kosayizi wezinhlayiya ezincane ekupholisheni isikhunta? Cabanga ngokuhluza irayisi ngesihlungo; uma izinhlamvu zerayisi zilingana ngobukhulu, inqubo yokuhluza ibushelelezi; uma zingamasayizi ahlukahlukene, izinhlamvu ezincane zizovala imigodi yesihlungo. Isimiso esifanayo siyasebenza ekupholisheni. Impuphu encane enosayizi wezinhlayiya ofanayo iqinisekisa ukusika okuqhubekayo ngesikhathi senqubo yokupholisha, ivimbela izimo lapho ezinye izindawo zipholishwe ngokweqile kanti ezinye zipholishwe kahle.
Ukusebenza Ezicelweni Ezisebenzayo
Inkampani eGuangzhou ekhiqiza izikhunta zokupakisha izimonyo ngaphambilini yayidinga amahora angu-35 ukupholisha isethi yezikhunta ze-lipstick tube ezisezingeni eliphezulu. Ngemva kokushintshela ku-white corundum micro-powder, isikhathi sancishiswa saba amahora angu-22. Uchwepheshe wabo wokupholisha wangitshela ukuthi, “Ngaphambilini, kwakudingeka siqaphele kakhulu phakathi nezigaba zokugcina zokupholisha; ngisho nephutha elincane lingabangela ukupholisha ngokweqile noma ukuklwebheka. Manje, nge-white corundum micro-powder, inqubo yokupholisha kulula ukuyilawula, ikakhulukazi ezigabeni zokugcina, lapho ukukhanya okumbalwa kwanele ukufeza ukuqeda kwesibuko.”
Emkhakheni wokupholisha isikhunta sefoni ephathekayo, izinzuzo zalokhui-white corundum micro-powderzibonakala kakhulu. Ama-casing omakhalekhukhwini adinga ukuqeda okuphezulu kakhulu, ngezinye izikhathi ngisho nangaphansi kwama-micrometer angu-Ra 0.01. Ifektri eDongguan egxile kuma-molds e-casing ensimbi omakhalekhukhwini yenze ukuhlolwa kokuqhathanisa: lapho ipholisha ama-molds e-aluminium alloy, isebenzisa i-white corundum micro-powder yaholela ekunciphiseni okungu-20% kokungaguquguquki kobuso uma kuqhathaniswa nezinto zokupholisha zendabuko, kuyilapho futhi kunciphisa isikhathi sokupholisha ngo-15%. Ukusetshenziswa Kokupholisha Kwezinto Ezikhethekile Zokupholisha
Ngokuthuthuka kwezinto zokubumba, ukuqina okuphezulu kanye nezinto ezimelana nokuguguleka okuphezulu kuya ngokuya kuvama, okuletha izinselele ezintsha zokubumba. Isibonelo, izinto zokubumba zendabuko zivame ukungasebenzi kahle uma zisetshenziswa ezintweni ezifana ne-powder high-speed steel kanye ne-cemented carbide. Ifektri yokubumba eShanghai ihlangabezane nobunzima lapho icubungula i-cemented carbide stamping molds; ukuqina kwe-mold kwafinyelela ku-HRC70, futhi izinto zokubumba ezivamile zacishe zangasebenzi kahle. Kamuva bazama ukusebenzisa i-white corundum micro-powder ene-polishing paste ekhethekile, futhi imiphumela yaba mihle ngokumangazayo. Umqondisi wabo wezobuchwepheshe uthe, "I-white corundum micro-powder inobunzima obanele kanye nezakhiwo ezifanele zokuzilola. Ngesikhathi senqubo yokubumba, imiphetho emisha yokusika ihlale ivezwa, igcina ukusebenza kahle kokubumba."
Izinzuzo Zezomnotho
Abanikazi bezimboni eziningi zesikhunta ekuqaleni babekhathazekile ngezindleko eziphezulu ze-i-corundum emhlophei-micro-powder, kodwa ukubhekisisa kuveza ukuthi izinzuzo zizonke zingcono kakhulu. Umnikazi wefektri yesikhunta eTaizhou, eZhejiang, wangibalisela izindleko: ekuqaleni, ukupholisha isethi yesikhunta sepulasitiki esiphakathi nendawo kwakubiza cishe ama-yuan angu-800 emsebenzini nasezintweni zokwakha, kwathatha amahora angu-8; ngemuva kokusebenzisa i-white corundum micro-powder, yize izindleko zezinto zanda ngama-yuan ayi-100, isikhathi sancishiswa saba amahora ama-5, kanti izindleko zomsebenzi zehla ngama-yuan angaphezu kwama-200, okwaholela ekunciphiseni izindleko zizonke ngama-yuan angaphezu kwe-100. Ngaphezu kwalokho, ikhwalithi yobuso yayizinzile, futhi izikhalazo zamakhasimende zehla.
Okubaluleke kakhulu, kwandisa isikhathi sokuphila kwesikhunta. Inqubo efanele yokupholisha ingasusa imifantu emincane ebusweni besikhunta futhi inciphise ukugxilisa ingqondo. Idatha ikhombisa ukuthi isikhunta esipholishwe ngokucophelela nge-white corundum micro-powder sinobude besikhathi sokuphila obungu-15%-20%. Lokhu kunenani elikhulu lesikhunta esibiza amashumi noma amakhulu ezinkulungwane zama-yuan.
Amathiphu Okusebenzisa kanye Nezinyathelo Zokuqapha
Nakuba i-white corundum micro-powder isebenza kahle kakhulu, ukusetshenziswa kwayo kudinga amasu athile. Ingcweti eyinhloko evela enkampanini yobuchwepheshe bokupholisha eQingdao yabelane ngolwazi oluthile:
Ukusetshenziswa okulinganiselwe kubalulekile. Akufanele usebenzise usayizi ofanayo wegrit kokubili ukupholisha okuqinile nokuncane; kufanele uqhubeke kancane kancane ngokulandelana "okukhulu-okuphakathi-okuncane". Isibonelo, ungaqala nge-W40, ushintshele kancane kancane ku-W10, bese ekugcineni usebenzisa i-W3.5 noma i-micro-powder encane ukuze upholise kahle. Ukukhetha i-carrier kubalulekile. I-white corundum micro-powder idinga ukusetshenziswa ne-polish yokupholisha efanele noma i-liquid carrier. I-carriers esekelwe ku-oyela ifanele ukupholisha ngensimbi, kuyilapho i-carriers esekelwe emanzini ifaneleka kakhulu ezinsimbini ezingenayo i-ferrous. I-carrier ayinikezi nje kuphela ukumiswa kanye nokuthambisa kodwa futhi isusa udoti osusiwe.
Ingcindezi kanye nesivinini kumele kuhambisane. Ingcindezi ephezulu yokupholisha ayihlali ingcono; ingcindezi enkulu ingabangela ukuthi izinhlayiya ezincane zingene ebusweni bezinto zokusebenza. Ngokuvamile, uma usayizi wezinhlayiya unciphile, ingcindezi iyancipha, futhi isivinini singakhushulwa ngokufanele. Inqubo yokuhlanza ayinakunakwa. Njalo lapho usayizi wezinhlayiya ushintshwa, ubuso besikhunta kanye namathuluzi okupholisha kumele kuhlanzwe kahle ukuze kuvinjelwe izinhlayiya eziqinile ukuthi zingahlangani enkambisweni elandelayo. Ochwepheshe abanolwazi bazosebenzisa ingilazi yokukhulisa ukuze bahlole ukuhlanzeka ngemva kwenqubo ngayinye.
Izitayela Zokuthuthukiswa Kwemboni
Ngokusekelwe ekubonweni okuvela emibukisweni kanye nokushintshaniswa kobuchwepheshe eminyakeni yamuva nje, kuvela izitayela eziningana ekusetshenzisweni kwe-white alumina micro-powder ekupholisheni isikhunta: Ukwenza ngokwezifiso kuya ngokuya kuvama. Abakhiqizi abaningi be-micro-powder baqala ukunikeza izinsizakalo "ezenzelwe wena", banikeza izilinganiso ezithile zosayizi wezinhlayiya ze-white alumina micro-powder ngokusekelwe ezintweni ezifana nezinto zokupholisha, imishini yokupholisha, kanye nezidingo zokuqeda ubuso. Abanye baze bathuthukise amafomula akhethekile ezinhlobo ezahlukene zensimbi.
Imikhiqizo ehlanganisiwe iyathandwa kakhulu. Imikhiqizo yokupholisha ehlanganisa i-alumina emhlophe nezinye izinto isiqala ukuvela, njengei-alumina emhlophekuhlanganiswe ne-cerium oxide, ukulinganisela amandla okusika kanye nokuphela kwendawo; futhi kuhlanganiswe ne-diamond micro-powder yokupholisha okuqinile kwezinto eziqinile kakhulu. Imikhiqizo enobungani nemvelo iba yindawo entsha ethandwayo. Njengoba izidingo zemvelo ziyanda, imikhiqizo ye-white alumina micro-powder engenazo izinsimbi ezisindayo, enothuli oluncane, futhi engasetshenziswa kabusha kalula ithola ukunakwa okwengeziwe. Abanye abakhiqizi bathuthukise izinhlelo zokupholisha ezincibilika emanzini ukuze banciphise ukusetshenziswa kwezinyibilikisi eziphilayo.