- 02
- Oct
Yakawanda sei mullite isingaremi kuputira zvidhinha kumira?
Yakawanda sei mullite isingaremi kuputira zvidhinha kumira?
Mullite kuputira chidhinha rudzi rutsva rwezvinhu zvinokanganisa, izvo zvinogona kunangana nemurazvo. Iine hunhu hwekupisa kwakanyanya tembiricha, kureruka kureruka, kwakaderera kudziya kwekupisa, uye kwakakosha simba rekuchengetedza simba. Mullite lightweight kuputira zvidhinha zvine hunhu hwakanaka hwepamusoro-tembiricha kuita uye yakaderera mutengo. Iyo inogona kushandiswa kune linn yezvipenga, izvo zvisingakwanise chete kudzora hunhu hwemuviri wevira, kunze kwekutsvaira, asi zvakare kuwedzera hupenyu hwebasa hweiyo lining lining uye kudzikisa mari yekuchengetedza.
Mullite lightweight kuputira zvidhinha zvinonyanya kugadzirwa nebauxite, ivhu, “matombo matatu”, nezvimwewo, kuburikidza nekuumbwa kwenhamba hombe yezvakabatanidzwa kana yakavharwa pores mune izvo zvigadzirwa zvekuumba kana kwepamusoro-tembiricha sintering maitiro.
Zvinoumba mullite lightweight kuputira zvidhinha:
Yakawanda sei mullite isingaremi kuputira zvidhinha kumira? Iyo yepamusoro tembiricha kuramba kwe mullite mwenje kuputira zvidhinha inogona kusvika pamusoro pe1790 ℃. Iko kutapudza kwekutanga kwekutanga tembiricha ndeye 1600-1700 ℃, iyo yakajairwa tembiricha inomanikidza simba iri 70-260MPa, iyo yekupisa yekuvhunduka kusagadzikana kwakanaka, iyo simba iri yakakwira, iyo yepamusoro tembiricha yekukwira mwero yakaderera, iyo yekuwedzera coefficient yakaderera, iyo thermal coefficient idiki, uye iyo acid slag inopesana. Uye inogona kudzikisira zvakanyanya huremu hwekupisa-tembiricha muviri wemoto, shandura chimiro, chengetedza zvigadzirwa, chengetedza simba, uye nekuvandudza kugona kwekugadzira.
Kushanda kwehuwandu hwemullite lightweight kuputira zvidhinha:
Mullite lightweight kuputira zvidhinha zvinonyanya kushandiswa kumatunhu ane tembiricha yakakwira pamusoro pe1400 ℃, matembiricha epamusoro-tembiricha, forehethths, regenerator arches, masisitimu egirazi rinonyungudika mafesi, zvedongo sintering kilns, zvedongo roller kilns, tunnel kilns, Iyo yemukati yekunamatira yevhu porcelain dhirowa kilni, rakafa kona kona vira lining ye petroleum kutsemuka system, girazi rinorohwa mbichana uye akasiyana mafesi emagetsi anokwanisa kubata zvakananga murazvo.
Iwo epanyama uye emakemikari indexes e mullite mwenje kuputira zvidhinha:
| Index / Chigadzirwa Tsanangudzo | ρ = 0.8 | ρ = 1.0 | ρ = 1.2 |
| Kupatsanura tembiricha （℃） | 1400 | 1550 | 1600 |
| Al2O3 （%） ≥ | 50 ~ 70 | 65 ~ 70 | 79 |
| Fe2O3 （%） ≤ | 0.5 | 0.5 | 0.5 |
| Kuwanda kwehuwandu (g / cm3) | 0.8 | 1.0 | 1.2 |
| Simba rekumanikidza patembiricha yemukati (Mp) | 3 | 5 | 7 |
| Thermal kuitisa (350 ℃) W / (mk) | 0.25 | 0.33 | 0.42 |
| Kutakura kutonhodza kupisa (℃) (0.2 Mp, 0.6%) | 1400 | 1500 | 1600 |
| Kudzokorodza mutsara shanduko chiyero% (1400 ℃ × 3h) | ≤0.9 | ≤0.7 | ≤0.5 |
| Nguva refu-yekushandisa tembiricha (℃) | 1200 ~ 1500 | 1200 ~ 1550 | 1500-1700 |