Ngaba iZirconia ingasebenzi kakuhle okanye ingasebenzi kakuhle? Ngaba kufuneka uchonge kwaye ulungise ukungaphumeleli kweZirconia Sintering?

Uqhuba inkqubo efanayo yokusila kabini. Ibhetshi efanayo ye-zirconia. Useto olufanayo lwesithando somlilo. Kodwa iziphumo azinakwahluka ngakumbi—enye iphuma inembonakalo engathandekiyo, efana netshokhwe engenazo zonke iimpawu zokukhanya, ngelixa enye iphuma ingwevu emnyama enomgangatho ongaqhelekanga kwaye ayihlali kakuhle. Kwenzeke ntoni nje?

Impendulo ikwingcamango eqondwa ziilabhoratri ezininzi ngokungaphelelanga: ubushushu bokunyibilikisa akupheleli nje ekuqiniseni i-zirconia. Yinguqu ephakathi elawula ukukhanya, amandla, kunye nokuchaneka kobukhulu ngaxeshanye. Kwaye xa kungahambi kakuhle, ukusilela kunokubonakala kwahlukile ngokupheleleyo kuxhomekeke kwicala ephosise kulo.

Ukuthungulwa kweZirconia: Iimpawu kunye nezizathu zokuthungulwa okungaphantsi komlilo vs. ukuthungulwa okugqithisileyo

Cinga ngokutshiza i-zirconia njengokupheka iidumplings. Fumana ubushushu obufanelekileyo, kwaye ufumana imveliso yokugqibela egqibeleleyo. Kodwa ukuba ubushushu bakho buphantsi kakhulu okanye buphezulu kakhulu, ugqibela uneengxaki ezahlukeneyo ngokupheleleyo—kwaye zifuna ukulungiswa okuchaseneyo ngokupheleleyo.

Khawuthelekelele ukubilisa amadombolo kwi-80°C endaweni ye-100°C. Azipheki ngokupheleleyo. Ingaphandle lisenokuqina kancinci, kodwa ingaphakathi lihlala liluhlaza kwaye lithambile. Ukutshisa okungaphantsi kweZirconia kusebenza ngendlela efanayo.

Utyikityo olubonakalayo: Isithsaba seChalky

Isithsaba sibonakala sinothuli, singumgubo, asinawo kwaphela amandla okuhambisa ukukhanya. Sibonakala njengetshokholethi emhlophe okanye iporcelain efakwe iqhwa kakhulu. Umphezulu unokuba ngathi urhabaxa okanye unemingxuma xa uyichukumisa. Akukho "bomi" kwimpahla—sibonakala sithe tyaba kwaye asinabomi, nokuba umbala webala olisebenzisileyo unjani.

Ingxaki yobungakanani: Isithsaba sikhulu kakhulu

Ngenxa yokuba inkqubo yokusila ayizange ifikelele esiphelweni, amasuntswana e-zirconia awazange ahlangane kakuhle. Isithsaba sigcine ubungakanani bayo bokuqala—asizange sinciphe ngokwaneleyo. Xa isigulane siyizama, iyakhululeka, iyajikeleza, okanye ayihlali kakuhle xa ilungiswa. Ujonge ukwenza inguqulelo entsha.

Kwenzeka ntoni ngaphakathi (iSayensi)

Kwinqanaba le-microscopic, i-zirconia igcwele iipokotho zomoya ezincinci—oko izazinzulu zikubiza ngokuba yi-microporosity . Cinga ngayo njengesiponji. Ezi zigidi zee-microscopic voids zisasaza ukukhanya ngamandla, zikuthintela ukuba kungadluli kakuhle. Ukukhanya kuyagqabhuka kwaye kukhanye kuzo zonke ezo ndawo zangaphakathi endaweni yokuhamba ngqo. Yiyo loo nto isithsaba sibonakala ngathi simhlophe—ayisiyongxaki yokungabonakali, kukusasazwa kokukhanya.

  Ngoku khawucinge ngokubilisa ezo dumplings kwi-120°C ixesha elide kakhulu. Ingaphandle liyaqina kwaye lishwabane, ukugcwalisa kuphuma, kwaye yonke into iyawa. Ubume bayo buyatshintsha kakhulu. Ukutshisa kakhulu kweZirconia kudala intlekele eyahlukileyo.

Utyikityo Olubonakalayo: Isithsaba Esimnyama Esingwevu

Isithsaba sivela sinombala ongwevu omdaka okanye omdaka omdaka. Sinombala okhanyayo (ungabona ukukhanya kudlula), kodwa umbala awulunganga—uthule, uhlanjiwe, okanye utshintshelwe kwiimibala engwevu. Umphezulu ungabonakala uthambile kodwa awunayo impilo yesithsaba esitshisiweyo ngokufanelekileyo. Imibala yamabala esetyenziswa ngaphambi kokudubula ibonakala yahlukile ngokupheleleyo kunokuba bekulindelwe.

Ingxaki yobungakanani: Isithsaba sincinci kakhulu

Ukuqhumisa kakhulu kubangela ukuncitshiswa kakhulu. I-zirconia incipha kakhulu ngexesha lokupholisa. Isithsaba siphuma sincinci kakhulu kunokuba kufanele ukuba sibe njalo. Asiyi kungena kwilungiselelo—siqinile kakhulu, okanye sihleli kwindawo ethe nkqo engalunganga. Kwakhona, uphinda ukhweze okanye uphinda wenze.

Kwenzeka ntoni ngaphakathi (iSayensi)

Kumaqondo obushushu aphezulu, iinkozo ze-zirconia azihlanganisi nje kuphela—zihlanganisa kakhulu . Amasuntswana ekristale akhula ngokungaqhelekanga, inkqubo ebizwa ngokuba kukukhula kweenkozo . Xa iinkozo ziba nkulu kakhulu, isalathisi sokujika (indlela ukukhanya okugoba ngayo kwizinto) siyatshintsha ngendlela engalindelekanga. Ukongeza, ukufudumeza kakhulu kunokubangela utshintsho lwesigaba apho ezinye ze-zirconia ziguquka ukusuka kwisigaba se-tetragonal ukuya kwisigaba se-monoclinic—utshintsho olunciphisa ubulukhuni kwaye lunokubangela ukuqhekeka okuncinci. Isithsaba sibonakala singwevu kuba ukukhanya akusaphindi kujika rhoqo—kusasazwa yile mida mitsha yeenkozo kunye notshintsho lwesigaba.

Nantsi itheyibhile ekhawulezayo yokuxilonga ukukunceda uchonge ukuba loluphi ukusilela ojongene nako :

Isithando Somlilo Sithi 1530°C—Ngoko Kutheni Izithsaba Zakho Zingagqibelelanga?

Apha kulapho iilabhoratri ezininzi ziphazamiseka khona. Isibonisi sakho sesithando somlilo sifundeka ngo-1530°C rhoqo. Awutshintshanga naluphi na useto. Kodwa ngequbuliso, amaqela aphuma engatshiswanga ngokwaneleyo okanye etshiswe kakhulu. Kwenzeka ntoni?

Ingxaki Yokwenene: I-Thermocouple Yakho Isenokuba Ixokile

Isibonisi sifunda oko i -thermocouple (isenzi sobushushu) ikuxelela kona. Kodwa ii-thermocouples ziyaguga. Emva kweenyanga okanye iminyaka yokusetyenziswa, kancinci kancinci ziyalahlekelwa kukuchaneka kokulinganisa. Iphaneli inokubonisa i-1530°C ngelixa ubushushu bokwenyani ngaphakathi kwesithando buyi-1480°C kuphela—okanye bunokuba busebenza kwi-1560°C kwaye awusoze wazi. Olu tshintsho lwe-50°C lwanele ukukutshintsha ukusuka ekutshiseni okugqibeleleyo ukuya ekusileleni ngokupheleleyo.

Ityala Elilandelayo: Apho Ubeka khona iZirconia

Amagumbi e-furnace awashushu ngokulinganayo. Isikhungo sidla ngokuba shushu ngakumbi kunemiphetho. Ukuba i-thermocouple ibona ubushushu kwiziko legumbi kodwa ufaka i-zirconia kufutshane nomphetho, iziqwenga zifumana ubushushu obuphantsi obusebenzayo. Ngokufanayo, ukuba i-crucible yakho ibekwe kakubi, ukuhamba komoya okujikeleze yona kuyatshintsha, nto leyo edala iindawo ezifileyo ezinokujikeleza kobushushu okubi.

Ingxaki yesantya sokufudumeza

Nokuba isithando somlilo sifikelela kwi-1530°C, ukuba sifika apho ngokukhawuleza kakhulu (isantya sokunyuka esigqithisileyo), umphezulu wangaphandle we-zirconia yakho unokutsha ngokupheleleyo ngelixa ingaphakathi lihlala lipholile kwaye lingatshisi ngokwaneleyo. Ugqibela uneqhekeza elitshiswe kancinci—ingaphandle libonakala lilungile, kodwa ngaphakathi lisenemingxuma kwaye libuthathaka.

Ukubuyisela Ulawulo: Indlela Yokufikelela Kwiqondo Lobushushu Elichanekileyo

Ukholo olungaboniyo kwisibonisi sakho sesithando somlilo aluyi kuyisombulula le ngxaki. Iindaba ezimnandi? Ungayiqinisekisa kwaye uyilungise ngeendlela ezimbalwa ezisebenzayo.

Indlela 1: Ukubeka esweni ubushushu bomzimba (Olona Luchanekileyo)

Sebenzisa iringi yokulinganisa ye-PTCR (Positive Temperature Coefficient) okanye isampuli efanayo yesalathiso. Le yiringi ye-zirconia eyenziwe ngokukodwa encipha ukuya kububanzi obaziwayo, obuqikelelwayo kumaqondo obushushu athile.

Nantsi indlela esebenza ngayo:

•   Beka iringi ye-PTCR kwisithando sakho (esiphakathi kwigumbi) ecaleni kwebhetshi yakho eqhelekileyo.

•   Sebenzisa umjikelo opheleleyo wokusila usebenzisa inkqubo yakho eqhelekileyo.

•   Emva kokupholisa, linganisa ububanzi beringi yePTCR etshisiweyo ngee-calipers.

•   Thelekisa ububanzi obulinganisiweyo netshati yesalathiso yomenzi. Oku kukuxelela ubushushu bokwenyani obufikelele kwi-furnace yakho.

Le ndlela ayigqibi ngokupheleleyo i-thermocouple. Ulinganisa inyani ebonakalayo, hayi ukufundwa kwe-elektroniki.

Indlela yesi-2: Indlela yokuthelekisa ngokubonakalayo

Gcina isampulu yesalathiso—isithsaba okanye ibhloko etshiswe phantsi kweemeko ezaziwayo ezigqibeleleyo. Xa uqhumisa ibhetshi entsha, thelekisa imbonakalo ebonakalayo (ukukhanya, umbala ogcweleyo, ukugqitywa komphezulu) ngokuthe ngqo kule migangatho yesalathiso. Ukuba iziqwenga zakho ezintsha zibonakala zahlukile ngokuphawulekayo, ubushushu bunokuba buphantsi.

Le ndlela ayichanekanga kangako kuneyokulinganisa i-PTCR, kodwa ikhawuleza kwaye ibamba ukuphambuka okukhulu.

Indlela yesi-3: Iprotokholi yoLondolozo lwesiqhelo

Ukutshintsha kobushushu akwenzeki ngequbuliso. Kunyuka kancinci kancinci kwiiveki neenyanga. Kuthintele ngoku:

•   Sebenzisa iringi yokulinganisa ye-PTCR nyanga zonke. Rekhoda ububanzi obulinganisiweyo ngalo lonke ixesha. Uza kubona ukushukuma kokulinganisa ngaphambi kokuba konakalise amaqela.

•   Ukuhlola ukutywinwa kwegumbi lesithando. Iintanda okanye izitywino ezikhululekileyo zivumela ubushushu ukuba buphume ngokungalinganiyo.

•   Ukujonga ijika lakho lokufudumeza (isantya sokuhamba). Qinisekisa ukuba awunyuki ngamandla kakhulu, nto leyo enokubangela ukuhla kobushushu ngaphakathi/ngaphandle kwe-zirconia.

Ulawulo Lobushushu Luqhuba Ukuthembeka Kwemveliso

Ngalo lonke ixesha isithsaba siphuma singaphumelelanga okanye siphelelwe ngamandla, sibonisa ingeniso elahlekileyo—ukulungiswa ngokutsha, imisebenzi engxamisekileyo, ukungoneliseki kwezigulane. Kodwa ezi ntsilelo zinokuthintelwa ngokupheleleyo ngeendlela ezifanelekileyo zokubeka esweni.

Iilabhoratri ezibalaseleyo kwi-zirconia sintering azikwenzi oko ngethamsanqa. Zona:

•   Yazi indlela yokwahlula ngokubonakalayo ukudubula okungaphantsi kokudubula okugqithisileyo ngokujonga nje

•   Qinisekisa ubushushu besithando sabo rhoqo ngenyanga ngeesampuli ezibonakalayo, kungekhona nje ukufundwa kwesiboniso

•   Ndineenkqubo zokusombulula iingxaki ezibhaliweyo ukuze iingcali zazi kakuhle into ekufuneka ziyenze xa iqela lingaphumeleli

Ukuchaneka akuyonto inzima. Kukungaguquguquki nje—nokuzimisela ukuqinisekisa endaweni yokucinga.

Ukulungele Ukuphelisa Ukusilela Kwezinto Ezibangela Ukungavisisani?

Ukuba ilabhoratri yakho ifumana iibhetshi eziphindaphindayo ezingasebenzisi mandla okanye ezisebenzisa kakhulu, singathanda ukukunceda ufumanise unobangela. Iqela lethu lisebenze namakhulu eelabhoratri ezijongene nale mingeni, kwaye siyazi ukuba zeziphi imibuzo ekufuneka sizibuze ukuze sichonge ukuba ngaba kukushukuma kwe-thermocouple, imida yoyilo lwe-furnace, okanye imiba enxulumene nobuchwepheshe.

Sinikezela:

•   Ingcebiso yobuchwephesha malunga nokulinganiswa kobushushu besithando kunye nokwenza ngcono ukucocwa kwe-sintering

•   Izisombululo zesithando somlilo ezenzelwe ngokukodwa ukusetyenziswa kwe-zirconia, kunye nobushushu obufanayo obuphambili kunye neempawu zozinzo

•   Ukufikelela kwisiseko sethu solwazi esibanzi malunga nokusebenza kwesithando samazinyo kunye nokusombulula iingxaki

Eli nqaku liyinxalenye yoluhlu lwethu malunga nokusombulula iingxaki ze-dental furnace. Ukuze ufumane eminye imiba eqhelekileyo kunye nezisombululo ezisebenzayo, bona: Iingxaki Eziqhelekileyo Nezisombululo Kwi-Dental Furnace Sintering