P\u0113c vair\u0101k nek\u0101 divdesmit gadu ilgas darba pieredzes, nosakot smalcin\u0101t\u0101jus visda\u017e\u0101d\u0101kajiem materi\u0101liem, s\u0101kot no tehnisk\u0101s keramikas l\u012bdz farm\u0101cijas starpproduktiem, esmu sapratis, ka cirkonija oks\u012bda lod\u012btes ir izv\u0113le, ko izv\u0113l\u0113ties, ja darb\u0101 nepiecie\u0161ama gan nopietna smalcin\u0101\u0161anas jauda, gan gandr\u012bz nulles pies\u0101r\u0146ojums. cirkonija oks\u012bda lod\u012btes maks\u0101 d\u0101rg\u0101k nek\u0101 alum\u012bnija oks\u012bda vai t\u0113rauda lod\u012btes, t\u0101p\u0113c t\u0101s netiek izmantotas vis\u0101s dzirnav\u0101s. Ta\u010du pareizajos lietojumos t\u0101s atmaks\u0101jas, pateicoties \u0101tr\u0101kai apstr\u0101dei, ilg\u0101kam barotnes kalpo\u0161anas laikam un t\u012br\u0101kam produktam. Esmu nov\u0113rojis, k\u0101 r\u016bpn\u012bcas p\u0101rg\u0101ja uz \u0161\u012bm lod\u0113m un nekad neatgriez\u0101s atpaka\u013c, un esmu redz\u0113jis ar\u012b gad\u012bjumus, kad papildu izmaksas neattaisnoja ieguvumus. At\u0161\u0137ir\u012bba parasti ir atkar\u012bga no izpratnes par to, ko \u0161\u012bs bumbi\u0146as paties\u012bb\u0101 nodro\u0161ina ra\u017eotn\u0113.<\/p>\n
Cirkonija sl\u012bp\u0113\u0161anas lod\u012btes ir izgatavotas no cirkonija dioks\u012bda, kas gandr\u012bz vienm\u0113r stabiliz\u0113ts ar nelielu itrija daudzumu (parasti 3-5 mol % Y\u2082O\u2083), lai istabas temperat\u016br\u0101 saglab\u0101tu materi\u0101lu stingr\u0101 tetragon\u0101laj\u0101 f\u0101z\u0113. Process s\u0101kas ar augstas t\u012br\u012bbas pak\u0101pes cirkonija pulveri, kas tiek samalts, ar velm\u0113\u0161anas vai pres\u0113\u0161anas metodi noform\u0113ts lod\u012bt\u0113s un p\u0113c tam sa\u0137epin\u0101ts temperat\u016br\u0101, kas iev\u0113rojami p\u0101rsniedz 1400 \u00b0C. Rezult\u0101ts ir bl\u012bva, s\u012bkgraudaina lod\u012bte ar \u013coti mazu porain\u012bbu. Vairum\u0101 komerci\u0101lo veidu, ko izmanto sl\u012bp\u0113\u0161anai, cirkonija saturs ir 95 % vai liel\u0101ks, stingri kontrol\u0113jot da\u013ci\u0146u izm\u0113ru sadal\u012bjumu un apa\u013cumu. Izm\u0113ri parasti ir no 0,1 mm l\u012bdz 30 mm vai liel\u0101ki, atkar\u012bb\u0101 no t\u0101, vai izmantojat lod\u012b\u0161u dzirnavas \u012bpa\u0161i smalkiem darbiem, vai parast\u0101s lod\u012b\u0161u dzirnavas.<\/p>\n
Izcila \u012bpa\u0161\u012bba ir bl\u012bvums. Ar aptuveni 6,0 g\/cm\u00b3 cirkonija lod\u012btes ir aptuveni par 50 % bl\u012bv\u0101kas nek\u0101 augstas kvalit\u0101tes alum\u012bnija oks\u012bda nes\u0113ji. \u0160\u012b papildu masa tie\u0161i noz\u012bm\u0113 liel\u0101ku trieciena ener\u0123iju fr\u0113z\u0113\u0161anas laik\u0101, kas noz\u012bm\u0113 \u0101tr\u0101ku da\u013ci\u0146u izm\u0113ru samazin\u0101\u0161anu, jo \u012bpa\u0161i smalk\u0101kajos izm\u0113ru diapazonos. Augstas ener\u0123ijas mais\u012btaj\u0101s dzirnav\u0101s vai lod\u012b\u0161u dzirnav\u0101s tas var sa\u012bsin\u0101t mal\u0161anas laiku par 20-40 % sal\u012bdzin\u0101jum\u0101 ar alum\u012bnija oks\u012bdu t\u0101dos pa\u0161os apst\u0101k\u013cos. Virsma ilgsto\u0161i saglab\u0101jas gluda, kas pal\u012bdz uztur\u0113t nemain\u012bgu sl\u012bp\u0113\u0161anas veiktsp\u0113ju un samazina \u0161\u0137embu veido\u0161an\u0101s iesp\u0113ju, kas var izrais\u012bt rupju da\u013ci\u0146u non\u0101k\u0161anu partij\u0101.<\/p>\n
\u0136\u012bmisk\u0101 inertums ir v\u0113l viens svar\u012bgs iemesls, k\u0101p\u0113c augi izv\u0113las cirkonija oks\u012bdu. \u0160\u012bs lod\u012btes ir notur\u012bgas pret vairuma sk\u0101bju, s\u0101rmu un organisko \u0161\u0137\u012bdin\u0101t\u0101ju iedarb\u012bbu, un taj\u0101s praktiski nav met\u0101la pies\u0101r\u0146ojuma. Tas ir \u0101rk\u0101rt\u012bgi svar\u012bgi elektroniskaj\u0101 keramik\u0101, kur dzelzs vai citi met\u0101li var saboj\u0101t dielektrisk\u0101s \u012bpa\u0161\u012bbas, vai farm\u0101cij\u0101 un p\u0101rtikas r\u016bpniec\u012bb\u0101, kur t\u012br\u012bbas pras\u012bbas ir stingras. Esmu redz\u0113jis, k\u0101 cirkonija oks\u012bda lod\u012btes tiek izmantotas augstas t\u012br\u012bbas pak\u0101pes alum\u012bnija oks\u012bda pulveru mal\u0161anai progres\u012bvai keramikai bez izm\u0113r\u0101ma uztver\u0161anas, kas b\u016btu pras\u012bjis papildu att\u012br\u012b\u0161anas posmus, izmantojot t\u0113rauda vai pat zem\u0101kas kvalit\u0101tes keramikas barotnes.<\/p>\n
Praks\u0113 visliel\u0101kie ieguvumi par\u0101d\u0101s lietojumos, kur nepiecie\u0161ams gan smalks da\u013ci\u0146u izm\u0113rs, gan t\u012brs produkts. Pigmentu un kr\u0101svielu ra\u017eot\u0101ji tos izmanto, lai pan\u0101ktu prec\u012bzu da\u013ci\u0146u izm\u0113ru sadal\u012bjumu bez kr\u0101sas mai\u0146as pies\u0101r\u0146ojuma d\u0113\u013c. Farmaceitiskie uz\u0146\u0113mumi izmanto tos akt\u012bvo sast\u0101vda\u013cu mitrajai mal\u0161anai, kur nav pie\u013caujamas pat met\u0101lu p\u0113das. Tehnisk\u0101s keramikas ra\u017eot\u0101ji, kas sama\u013c cirkonu, sil\u012bcija karb\u012bdu vai citus cietus materi\u0101lus, ieg\u016bst lab\u0101ku caurlaides sp\u0113ju un maz\u0101ku materi\u0101la nodilumu. Vien\u0101 r\u016bpn\u012bc\u0101, ar kuru es str\u0101d\u0101ju, p\u0101rejot no 95 % alum\u012bnija oks\u012bda lod\u012bt\u0113m uz itrija stabiliz\u0113ta cirkonija lod\u012b\u0161u dzirnav\u0101m elektronisk\u0101s kvalit\u0101tes pulverim, mal\u0161anas cikls samazin\u0101j\u0101s gandr\u012bz par tre\u0161da\u013cu un pietiekami paildzin\u0101j\u0101s materi\u0101la kalpo\u0161anas laiks, lai se\u0161u m\u0113ne\u0161u laik\u0101 atg\u016btu augst\u0101ko ieg\u0101des cenu.<\/p>\n
Protams, cirkonija oks\u012bds nav autom\u0101tiska izv\u0113le katram darbam. Liel\u0101ks bl\u012bvums, kas pie\u0161\u0137ir tam mal\u0161anas jaudu, noz\u012bm\u0113 ar\u012b liel\u0101ku dzirnavu oder\u0113juma un mais\u012bt\u0101ju nodilumu, ja iek\u0101rtas nav tam paredz\u0113tas. Da\u017eas vec\u0101kas lod\u012b\u0161u dzirnavas vienk\u0101r\u0161i nesp\u0113j iztur\u0113t papildu slodzi bez modifik\u0101cij\u0101m. Otrs ac\u012bmredzams faktors ir izmaksas - cirkonija oks\u012bds parasti ir tr\u012bs l\u012bdz piecas reizes d\u0101rg\u0101ks par labu alum\u012bnija oks\u012bda nes\u0113ju cenu p\u0113c svara. Tas ir lietder\u012bgi tikai tad, ja \u0101tr\u0101ka ra\u017eo\u0161ana, maz\u0101ks pies\u0101r\u0146ojums vai ilg\u0101ks nes\u0113ja kalpo\u0161anas laiks atsver s\u0101kotn\u0113jos izdevumus. L\u0113tu miner\u0101lu rupj\u0101 mal\u0161an\u0101 vai sausaj\u0101 mal\u0161an\u0101, kur triecieniztur\u012bba ir svar\u012bg\u0101ka par nodilumiztur\u012bbu, t\u0113rauds vai alum\u012bnija oks\u012bds bie\u017ei vien ir ekonomiski izdev\u012bg\u0101kais risin\u0101jums.<\/p>\n
Svar\u012bgi ir atlases un ekspluat\u0101cijas dati. Itrija stabiliz\u0113ts cirkonija oks\u012bds ir visizplat\u012bt\u0101kais un parasti visiztur\u012bg\u0101kais sl\u012bp\u0113\u0161anai, bet past\u0101v ar\u012b keramz\u012bta stabiliz\u0113tas \u0161\u0137iras, kas paredz\u0113tas noteikt\u0101m augsttemperat\u016bras vai specifisk\u0101m \u0137\u012bmisk\u0101m vid\u0113m. Lod\u012b\u0161u izm\u0113rs un pild\u012bjuma attiec\u012bba joproj\u0101m atbilst ierastajiem noteikumiem - izm\u0113ru kombin\u0101cija bie\u017ei vien darbojas vislab\u0101k -, bet, t\u0101 k\u0101 barotne ir bl\u012bv\u0101ka, jums var b\u016bt nepiecie\u0161ams piel\u0101got pild\u012bjuma svaru vai dzirnavu \u0101trumu, lai izvair\u012btos no p\u0101rslodzes. Ir lietder\u012bgi regul\u0101ri p\u0101rbaud\u012bt, vai nav radu\u0161\u0101s \u0161\u0137embas vai plaisas; pat iztur\u012bgs cirkonija oks\u012bds var saplais\u0101t, ja dzirnav\u0101s non\u0101k sve\u0161\u0137erme\u0146i. Laba saimnieko\u0161ana un pareizas iekrau\u0161anas proced\u016bras atmaks\u0101jas.<\/p>\n
Cik esmu nov\u0113rojis da\u017e\u0101d\u0101s nozar\u0113s, cirkonija lod\u012btes vislab\u0101kos rezult\u0101tus sasniedz, ja proces\u0101 jau tiek v\u0113rt\u0113ta konsekvence un t\u012br\u012bba. T\u0101s ma\u0123iski neatrisina sliktu dzirnavu konstrukciju vai sliktu vircas \u0137\u012bmiju, bet, ja viss p\u0101r\u0113jais ir sapr\u0101t\u012bgi optimiz\u0113ts, t\u0101s nesteidz\u012bgi uzlabo gan produkcijas izlaidi, gan produkta kvalit\u0101ti. R\u016bpn\u012bcas, kas seko l\u012bdzi mal\u0161anas laikam, nes\u0113ja pat\u0113ri\u0146am un pies\u0101r\u0146ojuma l\u012bmenim pirms un p\u0113c mai\u0146as, parasti pie\u0146em lab\u0101kos l\u0113mumus par to, vai ir v\u0113rts veikt ieguld\u012bjumus konkr\u0113tajos apst\u0101k\u013cos.<\/p>\n
Galu gal\u0101 cirkonija sl\u012bp\u0113\u0161anas lod\u012btes joproj\u0101m ir augst\u0101k\u0101s kvalit\u0101tes, bet praktisks instruments. T\u0101s izce\u013cas ar augstu bl\u012bvumu, zemu nodilumu un minim\u0101lu pies\u0101r\u0146ojumu, lai atrisin\u0101tu re\u0101las ra\u017eo\u0161anas probl\u0113mas. Ja \u0161ie faktori atbilst j\u016bsu ekonomikai un apr\u012bkojumam, t\u0101s izpeln\u0101s savu vietu. Ja tas t\u0101 nav, nav kauns palikt pie alum\u012bnija oks\u012bda vai t\u0113rauda. Prasme ir zin\u0101t, kur\u0101 situ\u0101cij\u0101 atrodaties.<\/p>","protected":false},"excerpt":{"rendered":"
After more than twenty years specifying grinding media for everything from technical ceramics to pharmaceutical intermediates, I\u2019ve learned that zirconia ball are the choice you reach for when the job demands both serious grinding power and almost zero contamination. zirconium oxide ball cost more than alumina or steel, so they don\u2019t go into every mill. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-309","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-zirconia-grinding-media","7":"czr-hentry"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/309"}],"collection":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/comments?post=309"}],"version-history":[{"count":1,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/309\/revisions"}],"predecessor-version":[{"id":310,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/309\/revisions\/310"}],"wp:attachment":[{"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/media?parent=309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/categories?post=309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zirconia-ceramics.com\/lv\/wp-json\/wp\/v2\/tags?post=309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}