i-zirconium crucible ekhanyayo engenamthungo yokuncibilikisa insimbi
I-Zirconium crucibles inobubanzi obuphezulu bokushisa, okubenza bafaneleke ezinhlobonhlobo zezicelo zezimboni ezibandakanya ukuncibilika kwensimbi nezinye izinqubo zokushisa okuphezulu. Izinga lokushisa le-zirconium crucibles ngokuvamile lisuka ekamelweni lokushisa liye cishe ku-2400 ° C (4352 ° F). Leli khono lokushisa eliphezulu lenza i-zirconium crucibles ilungele ukuncibilikisa izinsimbi ezincibilika kakhulu njenge-titanium, nickel nezinye izinsimbi eziphikisayo.
Ukwengeza, ukumelana nokugqwala kwe-zirconium nekhono lokumelana namazinga okushisa aphezulu kuyenza ibe yinto ebalulekile yokusetshenziswa ezimweni ezimbi kakhulu.
![i-zirconium crucible (4)](https://www.forgedmoly.com/uploads/aed20435.jpg)
I-Alumina ne-zirconia crucibles zombili zivame ukusetshenziswa ekusetshenzisweni kwezinga lokushisa eliphezulu, kodwa zinomehluko obalulekile:
1. Ukwakheka kwezinto:
- I-alumina crucibles yenziwe nge-aluminium oxide (Al2O3), impahla ye-ceramic eyaziwa ngokuhambisa kwayo okushisayo okuphezulu kanye nokumelana okuhle kakhulu kwamakhemikhali.
- I-Zirconia crucibles, ngakolunye uhlangothi, yenziwe nge-zirconium dioxide (ZrO2), eyaziwa nangokuthi i-zirconia. I-Zirconia inamandla aphezulu, ukuqina nokumelana nokushaqeka okushisayo.
2. Iphuzu lokuncibilika:
- I-Aluminium oxide inezinga eliphezulu lokuncibilika, ngokuvamile elicishe libe ngu-2050°C (3722°F), okuyenza ifaneleke ezihlukahlukene zezinga lokushisa eliphezulu.
- I-Zirconia inezinga eliphezulu lokuncibilika, ngokuvamile eliba ngu-2700°C (4892°F), okuyenza ifanelekele izinhlelo zokusebenza ezidinga amazinga okushisa adlulele.
3. I-Thermal conductivity:
- I-Aluminium oxide inokushintshwa kokushisa okuphakeme uma kuqhathaniswa, okuzuzisa kwezinye izinhlelo zokusebenza lapho ukudlulisa ukushisa okusebenzayo kubalulekile.
- I-Zirconia ine-conductivity ephansi yokushisa uma kuqhathaniswa ne-alumina, enenzuzo ezinhlelweni ezidinga ukufakwa kwe-thermal.
4. Ukumelana namakhemikhali:
- I-Aluminium oxide inokumelana okuhle namakhemikhali, okuyenza ifanelekele ukusetshenziswa nezinsimbi eziningi ezincibilikisiwe kanye nezindawo zamakhemikhali ezinokhahlo.
- I-Zirconia iphinda ikhombise ukumelana namakhemikhali okuhle kakhulu, ikakhulukazi ezindaweni ezine-asidi ne-alkali, okuyenza ifanelekele ukusetshenziswa kwamakhemikhali okufunwa kakhulu.
Kafushane, kuyilapho kokubili iziphambano ze-alumina ne-zirconia zifaneleka ekusetshenzisweni kwezinga lokushisa eliphezulu, ukukhetha phakathi kwalokhu kokubili kuncike ezidingweni ezithile ezifana nobubanzi bokushisa, ukuqhutshwa kokushisa okushisayo, nokumelana namakhemikhali.
![i-zirconium crucible (5)](https://www.forgedmoly.com/uploads/4d104938.jpg)
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