Mabhenefiti Ekushanda Kwezvidhinha zveMagnesia Carbon

Zvakanakira zvidhinha zvemagnesia carbon ndeizvi:Kudzivirira kukurwa kwetsvina uye kudzivirira kupisa kwakanyanya. Kare, dambudziko rezvidhinha zveMgO-Cr2O3 nezvidhinha zvedolomite raive rekuti zvainyudza zvikamu zvetsvina, zvichikonzera kupararira kwechimiro, zvichikonzera kukuvara kusati kwasvika nguva. Nekuwedzera graphite, magnesia carbon bricks yakabvisa kukanganisa uku. Hunhu hwayo ndehwekuti slag inongopinda chete munzvimbo yekushanda, saka reaction layer Yakavharirwa panzvimbo yekushanda, chimiro chacho hachina kukwesha uye chinogara kwenguva refu.

Iye zvino, kuwedzera kune zvidhinha zvekabhoni zveasphalt ne resin-bonded magnesia (kusanganisira zvidhinha zve magnesia zvakanyudzwa nemafuta),Zvidhinha zvemagnesia carbon zvinotengeswa pamusika zvinosanganisira:

(1) Zvidhinha zveMagnesia carbon zvakagadzirwa neMagnesia ine 96%~97% MgO uye graphite 94%~95%C;

(2) Zvidhinha zveMagnesia carbon zvakagadzirwa neMagnesia ine 97.5% ~ 98.5% MgO uye graphite 96% ~ 97% C;

(3) Zvidhinha zveMagnesia carbon zvakagadzirwa neMagnesia ine 98.5%~99% MgO uye 98%~C graphite.

Zvichienderana nehuwandu hwekabhoni, magnesia carbon bricks yakakamurwa kuita:

(I) Zvidhinha zvemagnesia zvakanyudzwa nemafuta (carbon content iri pasi pe2%);

(2) Zvidhinha zvemagnesia zvakasungirirwa nekabhoni (kabhoni iri pasi pe7%);

(3) Zvidhinha zvemagnesia zvakasungirirwa neresin (huwandu hwekabhoni huri 8% ~ 20%, kusvika 25% mune dzimwe nguva). Maantioxidant anowanzo wedzerwa kuzvidhinha zvemagnesia zvakasungirirwa neasphalt/resin (huwandu hwekabhoni huri 8% kusvika 20%).

Zvidhinha zveMagnesia carbon zvinogadzirwa nekubatanidza jecha reMgO rakachena zvakanyanya ne scaly graphite, carbon black, nezvimwewo. Maitiro ekugadzira anosanganisira maitiro anotevera: kupwanya zvinhu zvisina kucheneswa, kuongorora, kuyera, kusanganisa zvichienderana nekugadzirwa kwefomura yezvinhu uye mashandiro ekugadzira chigadzirwa, zvichienderana nemusanganiswa. Tembiricha yemhando yemumiriri inokwidzwa kusvika pa100~200℃, uye inokandwa pamwe chete ne binder kuti pave ne inonzi MgO-C mud (musanganiswa wemuviri wegirini). Zvinhu zveMgO-C mud zvinoshandisa synthetic resin (kunyanya phenolic resin) zvinoumbwa mumamiriro ekutonhora; zvinhu zveMgO-C mud zvinosanganiswa neasphalt (zvinopiswa kusvika pamvura) zvinoumbwa mumamiriro ekudziya (paanenge 100°C). Zvichienderana nehukuru hwebatch uye zvinodiwa zvekushanda kwezvigadzirwa zveMgO-C, michina yekuzunguza vacuum, michina yekumanikidza molding, extruders, isostatic presses, hot presses, heat equipment, uye ramming zvinogona kushandiswa kugadzirisa zvinhu zveMgO-C mud. kuchimiro chakakodzera. Muviri weMgO-C wakagadzirwa unoiswa muchoto pa700~1200°C kuti upiswe kupisa kuti chinhu chinosunga chiite kabhoni (maitiro aya anonzi carbonization). Kuti zvidhinha zvemagnesia carbon zviwedzere kuwanda uye kusimbisa kubatana, zvinozadza zvakafanana nezvinobatanidza zvinogona kushandiswawo kunyudza zvidhinha.

Mazuva ano, resin yakagadzirwa (kunyanya phenolic resin) inonyanya kushandiswa semushonga wekubatanidza magnesia carbon bricks.Kushandiswa kwezvidhinha zvemagnesia carbon resin zvakasungwa nesimbi yakagadzirwa nesimbi ine mabhenefiti anotevera:

(1) Zvinhu zvakatipoteredza zvinobvumira kugadziriswa nekugadzirwa kwezvigadzirwa izvi;

(2) Maitiro ekugadzira zvigadzirwa mumamiriro ekutonhora ekusanganisa zvinhu anochengetedza simba;

(3) Chigadzirwa chinogona kugadziriswa mumamiriro ezvinhu asingacheneswi;

(4) Kana tichienzanisa ne tar asphalt binder, hapana plastic phase;

(5) Kuwedzera kwehuwandu hwekabhoni (grafiti yakawanda kana marasha ebituminous) kunogona kuwedzera kuramba kwekupfekwa uye kuramba kusviba.