Lankhulani za zisa za ceramic

Chiyambi cha malonda:

Zisa zisa za ceramic ndi mtundu watsopano wa zinthu za ceramic zomwe zimakhala ngati zisa. Amapangidwa ndi zinthu monga kaolin, talc, aluminiyamu ufa, ndi dongo. Ili ndi mawonekedwe osiyanasiyana opangidwa ndi mabowo osawerengeka ofanana. Kuchuluka kwa mabowo afika 120-140 pa lalikulu centimita, kachulukidwe ndi 0.3-0.6 magalamu pa kiyubiki centimita, ndi mlingo mayamwidwe madzi ndi okwera 20%. Kapangidwe kameneka kakang'ono kakang'ono ka mipanda kumawonjezera kwambiri mawonekedwe a geometric pamtunda wa chonyamulira komanso kumathandizira kukana kwamphamvu kwamafuta. Mabowo a mauna a zisa za zisa amakhala ndi makona atatu komanso masikweya, pomwe mabowo amakona atatu amakhala ndi mphamvu yobereka bwino kuposa maenje akulu akulu ndi mabowo ambiri, zomwe ndizofunikira kwambiri ngati chonyamulira chothandizira. Ndi kuwonjezeka kwa chiwerengero cha mabowo pagawo la unit ndi kuchepa kwa makulidwe a khoma la pore chonyamulira, kukana kwa kutentha kwa chonyamulira cha ceramic kumawonjezeka, ndipo kutentha kwa kuwonongeka kwa kutentha kumawonjezeka. Choncho, zisa zadothi zimayenera kuchepetsa kufalikira kwa coefficient ndikuwonjezera chiwerengero cha mabowo pagawo lililonse.

Zida zazikulu:

Cordierite, mullite, aluminiyamu zadothi, mkulu aluminiyamu, corundum, etc.

Ntchito yamalonda:

1) Monga thupi losungirako kutentha: Kutentha kwa zisa za ceramic zosungirako kutentha kwa thupi kumaposa 1000kJ/kg, ndipo kutentha kwakukulu kwa zinthuzo ndi ≥1700℃. Itha kupulumutsa mafuta opitilira 40% m'ng'anjo zowotha, zowotcha, ng'anjo zonyowa, ng'anjo zosweka ndi ng'anjo zina, kuwonjezera kupanga ndi 15%, ndipo kutentha kwa mpweya wotulutsa kumakhala kotsika kuposa 150 ℃.

2) Monga chodzaza: Zodzaza zisa za uchi zimakhala ndi zabwino monga malo okulirapo komanso kulimba mtima kuposa mawonekedwe ena azodzaza. Atha kupangitsa kuti kugawira kwamadzi a gasi kukhale kofanana, kuchepetsa kukana kwa bedi, kukhala ndi zotsatira zabwino, ndikuwonjezera moyo wautumiki. Ndiwothandiza kwambiri ngati zodzaza m'mafakitale a petrochemical, pharmaceutical and fine chemical.

3) Monga chonyamulira chothandizira: Zoumba za zisa zili ndi zabwino zambiri pazothandizira. Kugwiritsa ntchito zisa za ceramic monga zonyamulira, pogwiritsa ntchito zida zokutira zapadera, komanso zokonzedwa ndi zitsulo zamtengo wapatali, zitsulo zosawerengeka zapadziko lapansi ndi zitsulo zosinthika, zimakhala ndi ubwino wa ntchito yothandiza kwambiri, kukhazikika kwa kutentha, moyo wautali, mphamvu zambiri, ndi zina zotero.

4) Monga zinthu zosefera: kukhazikika kwamankhwala abwino, kugonjetsedwa ndi asidi, alkali ndi zosungunulira za organic; kukana kwambiri kutentha mofulumira ndi kuzirala, kutentha ntchito kungakhale mkulu monga 1000 ℃; katundu wabwino wa antibacterial, osawonongeka mosavuta ndi mabakiteriya, osavuta kutsekedwa komanso osavuta kukonzanso; kukhazikika kwamphamvu kwamapangidwe, kugawanika kwa pore yopapatiza, kupezeka kwakukulu; zopanda poizoni, makamaka zoyenera chakudya ndi mankhwala.