China yowala yopanda zirconium crucible yosungunuka zitsulo Wopanga ndi Wopereka

wonyezimira wopanda msoko wa zirconium wosungunula zitsulo

wonyezimira wopanda msoko wa zirconium wosungunula chitsulo Chithunzi Chowonetsedwa

Kufotokozera Kwachidule:

Ma crucibles owoneka bwino a zirconium osungunula zitsulo angakhale chisankho chabwino kwambiri pakugwiritsa ntchito kutentha kwakukulu. Zirconium imadziwika chifukwa chosungunuka kwambiri komanso kukana dzimbiri, ndikupangitsa kuti ikhale yoyenera kugwiritsidwa ntchito posungunula zitsulo.

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Kodi kutentha kwa zirconium crucibles ndi kotani?

Zirconium crucibles zimakhala ndi kutentha kwakukulu, zomwe zimawapangitsa kukhala oyenera ntchito zosiyanasiyana zamafakitale zomwe zimaphatikizapo kusungunuka kwachitsulo ndi njira zina zotentha kwambiri. Kutentha kwa zirconium crucibles nthawi zambiri kumayambira kutentha kwa chipinda kufika pafupifupi 2400 ° C (4352 ° F). Kutentha kwapamwamba kumeneku kumapangitsa kuti zirconium crucibles zikhale zoyenera kusungunula zitsulo zosungunuka kwambiri monga titaniyamu, faifi tambala ndi zitsulo zina zokana.

Kuphatikiza apo, kukana kwa dzirconium ndikutha kupirira kutentha kwambiri kumapangitsa kuti ikhale chinthu chofunikira kwambiri pakagwiritsidwe ntchito muzovuta kwambiri.

Kodi pali kusiyana kotani pakati pa alumina ndi zirconia crucible?

Alumina ndi zirconia crucibles onse amagwiritsidwa ntchito kwambiri pa kutentha kwakukulu, koma ali ndi kusiyana kwakukulu:

1. Kapangidwe kazinthu:
- Ma crucibles a aluminiyamu amapangidwa ndi aluminium oxide (Al2O3), zinthu za ceramic zomwe zimadziwika chifukwa chamafuta ake apamwamba komanso kukana kwamankhwala.
- Zirconia crucibles, kumbali ina, amapangidwa ndi zirconium dioxide (ZrO2), yomwe imadziwikanso kuti zirconia. Zirconia ili ndi mphamvu zambiri, kulimba komanso kukana kugwedezeka kwa kutentha.

2. Malo osungunuka:
- Aluminium oxide imakhala ndi malo osungunuka kwambiri, omwe nthawi zambiri amakhala pafupifupi 2050 ° C (3722 ° F), kupangitsa kuti ikhale yoyenera pamitundu yosiyanasiyana ya kutentha kwambiri.
- Zirconia ili ndi malo osungunuka kwambiri, omwe nthawi zambiri amakhala pafupifupi 2700 ° C (4892 ° F), kupangitsa kuti ikhale yoyenera kugwiritsa ntchito zomwe zimafuna kutentha kwambiri.

3. Thermal conductivity:
- Aluminium oxide imakhala ndi matenthedwe apamwamba kwambiri, omwe amapindulitsa pazinthu zina pomwe kutentha koyenera ndikofunikira.
- Zirconia ili ndi matenthedwe otsika poyerekeza ndi aluminiyamu, omwe ndi opindulitsa pamagwiritsidwe omwe amafunikira kutchinjiriza kwamafuta.

4. Chemical resistance:
- Aluminium oxide imakhala ndi mphamvu yokana mankhwala, yomwe imapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito ndi zitsulo zambiri zosungunuka komanso malo owopsa a mankhwala.
- Zirconia imawonetsanso kukana kwa mankhwala, makamaka kumadera a acidic ndi amchere, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito mankhwala osokoneza bongo.

Mwachidule, pamene aluminiyamu ndi zirconia crucibles ndi oyenera ntchito kutentha kwapamwamba, kusankha pakati pa ziwirizi zimadalira zofunika zenizeni monga kutentha osiyanasiyana, madutsidwe matenthedwe, ndi kukana mankhwala.