Kupararira mhando kufema zvidhinha moyo

Product zita: Kupararira mhando kufema zvidhinha moyo

Chikamu: Kupararira mhando inofema zvidhinha musimboti

Yakapararira mweya-inokwanisika zvidhinha vane yakakwirira porosity uye permeability. Mukugadzirwa chaiko, nekuwedzera makemikari ane kabhoni mumusanganiswa, izvo zvinhu zvinogona kupiswa pane yakadzika tembiricha isina masara, saka yekutanga porosity inogona kuwanikwa nekupisa iyo yepakati zvinhu pane yakaderera tembiricha. Dhizaini-yemhando-inokwanisika zvidhinha inogoverwa neinopindirana pores ehukuru hwakasiyana. Kana mhepo ichivhuvhuta inomiswa panguva yekushandiswa, simbi uye slag iri mudhira inopinda munzvimbo dzakadzika dzezvidhina zvinopinza mweya kuburikidza neaya pores, zvichidaro zvichigadzira panzvimbo inoshanda. Zvikamu zvakasimba. Kana iyo radhi yakamiswa kana kana mhepo yatanga patsva, iyo inoshanda nzvimbo yezvidhinha-inokwenenzverwa inogara ichipinda uye kukanganiswa nesimbi yakanyungudutswa, zvichikonzera kuti pores dzivharwe, dzipeperetswe kana kusvuurwa.

Performance:

1. Slag kuramba

Kuti uvandudze zvinhu zve slag kuramba uye mvura yesimbi yekupinda nemishonga, Cr2O3 kana chikamu chromium corundum inowanzo kuwedzerwa kune corundum spinel mweya-inokwanisika zvidhinha. Cr2O3 uye a-Al2O3 vane imwechete yekristaro chimiro. Cr2O3 haingogadzirise iyo slag kuramba kwechinhu, asi zvakare inowedzera iyo yekunyorovesa kona pakati pezvinhu uye nesimbi yakanyungudutswa, uye zvakanyanya kunatsiridza iko kuvharika kweporera kwechifema chinofema nekuda kwekupinda kwesimbi yakanyungudutswa.

Uchishandisa Cr2O3 upfu hwakatsetseka uye Al2O3 pakakwirira tembiricha kuti igadzire iyo aluminium-chromium yakasimba mhinduro uye iripo chromium-ine girazi chikamu, chikamu chemvura chakaumbwa kana chasvika pakubatana neiyo slag mune yakanyungudutswa simbi yekunyungudika maitiro ine yakagadziriswa viscosity, nekudaro kudzivirira iyo slag musimbi yakanyungudutswa kubva mukukanganisa iyo yekufema chidhinha Corrosion; Panguva imwecheteyo, inogona kutora iron oxide uye magnesium oxide iri mu slag, uye kugadzira dense spinel munzvimbo yekushanda yeiyo ventilating chidhinha, iyo inovandudza kushorwa kwe slag kweiyo ventilating chidhinha.

Nekudaro, mushure mekuwedzera Cr2O3 kune izvo zvinhu, mushure mekupisa-kupisa kupisa kana kushandisa, Cr3 + yakaiswa oxidized kuCr6 +, inova chepfu uye inosvibisa nharaunda. Naizvozvo, kuchengetedza simba uye kuchengetedza kwezvakatipoteredza, kushandiswa kweCr2O3 kunofanira kudzivirirwa zvakanyanya sezvazvinogona, uye nekutsiva zvinhu zvakasvibirira, iko kupisa kwekushisa pasina kuwedzera Cr2O3 kunogona kusvika padanho rekuwedzera Cr2O3.

2. Thermal kuvhunduka kuramba

Nzira huru yekukuvadza yezvidhinha zvinokwanisika nemhepo kukuvara kwekupisa. Nekuenderera mberi kwekuwedzera kwekutepa tembiricha, pane musiyano mukuru wekupisa pakati pekushanda uye wepakati pebasa pane anoshanda pamusoro peiyo ventilating chidhinha, icho chinoda kuti chinhu chive neakanyanya emagetsi ekuvhunduka kuramba. Iyo spinel chikamu chinounzwa mune chinokandirwa, uye kupisa kwemhepo kushamisa kweye mweya-inokwanisika zvidhinha ichavandudzwa.

Iyo oxide kana isiri-oxide yakawedzerwa mumhepo ine zvidhinha inoumba yakasimba mhinduro chikamu pamwe nehuremu pakupisa kwakanyanya, inowedzera simba repamusoro-tembiricha, inovandudza kukwana kwechidhinha, uye inodzivisa kukukurwa kwechitinha chine mweya yakaumbwa slag mune ladle. Mushure mekudziya kwakanyanya kupisa kupisa kwezvidhinha zvinobvumidzwa nemhepo, mashandiro ayo anovandudzwa kusangana nezvinodiwa zvekushandisa.