Mhando 7 dzezvinhu zvinogadziriswa zveCorundum zvinoshandiswa muzvinhu zvinogadziriswa zveRefractory

01 SCorundum yakabatana
Sintered corundum, inozivikanwawo sesintered alumina kana semi-molten alumina, isimbi inonyunguduka inogadzirwa kubva ku calcined alumina kana industrial alumina sezvinhu zvisina kugadzirwa, inogayiwa kuita mabhora kana miviri yakasvibira, uye inopiswa pakupisa kwakanyanya kwe1750 ~ 1900°C.

Alumina yakasanganiswa ine anopfuura 99% yealuminium oxide inogadzirwa zvakanyanya ne corundum yakatsetseka yakabatana zvakananga. Mwero wekubuda kwegasi uri pasi pe3.0%, huwandu hwevhoriyamu hunosvika 3.60%/cubic meter, refractoriness iri pedyo nepo kunyunguduka kwe corundum, ine kugadzikana kwakanaka kwevhoriyamu uye kugadzikana kwemakemikari pakupisa kwakanyanya, uye haiparadzwi nekuderedza mhepo, girazi rakanyungudutswa nesimbi yakanyungudutswa. , simba rakanaka remakanika uye kuramba kupfeka pakupisa kwakajairika uye kupisa kwakanyanya.

02Corundum Yakasanganiswa
Corundum yakasanganiswa i corundum yekugadzira inogadzirwa nekunyungudutsa upfu hwealumina yakachena muchoto chemagetsi chinodziya zvakanyanya. Ine hunhu hwekunyunguduka kwakanyanya, simba remagetsi rakawanda, kuramba kupisa kwakanaka, kuramba ngura kwakasimba uye kuwedzera kudiki. Corundum yakasanganiswa imhando yepamusoro yekugadzira zvinhu zvakakosha zvinoramba kusimba. Inonyanya kusanganisira corundum chena yakasanganiswa, corundum yebrown yakasanganiswa, corundum yesub-white, nezvimwewo.

03Corundum Chena Yakasanganiswa
Corundum chena yakasanganiswa inogadzirwa nehupfu hwealumina chaiyo uye inonyungudutswa pakupisa kwakanyanya. Ine ruvara ruchena. Maitiro ekunyungudusa ecorundum chena inyaya yekunyungudusa uye kudzokorodza hupfu hwealumina hweindasitiri, uye hapana maitiro ekuderedza. Hunhu hweAl2O3 hausi pasi pe9%, uye huwandu hwekusachena hudiki kwazvo. Kuoma kwayo kudiki zvishoma pane brown corundum uye kuoma kwayo kwakaderera zvishoma. Inowanzo shandiswa kugadzira maturusi ekukwesha, ceramics dzakakosha uye zvinhu zvepamusoro zvinoramba kushanda.

04Corundum yeBrown Yakasanganiswa
Corundum yebrown yakagadzirwa nealumina bauxite yakawanda sechigadzirwa chikuru uye inosanganiswa necoke (anthracite), uye inonyungudutswa muchoto chemagetsi chinodziya zvakanyanya pakupisa kuri pamusoro pe2000°C. Corundum yebrown yakasanganiswa ine magadzirirwo akakora uye kuomarara kwakanyanya uye inowanzoshandiswa muzvigadzirwa zveceramics, ma castings akanyatsogadzirwa uye zvinhu zvepamusoro zvinoramba kushanda.

05Sub-chena Corundum
Subwhite corundum inogadzirwa ne electromelting special grade kana first grade bauxite pasi pe reduction atmosphere uye mamiriro akadzorwa. Kana yanyunguduka, wedzera reduction agent (carbon), setting agent (iron filings) uye decarburizing agent (iron scale). Nekuti makemikari ayo uye hunhu hwayo zviri pedyo ne white corundum, inonzi sub-white corundum. Huremu hwayo hwakawanda huri pamusoro pe 3.80g/cm3 uye porosity yayo iri pachena iri pasi pe 4%. Chinhu chakanakira kugadzira zvinhu zvemhando yepamusoro zvinoramba kusimba uye zvinhu zvisingapfeki.

06Chrome corundum
Pahwaro hwe corundum chena, 22% chromium inowedzerwa, uye inogadzirwa nekunyungudutswa muchoto chemagetsi. Ruvara rwacho rwakaita sepepuru-tsvuku. Kuoma kwacho kwakakwira zvishoma pane corundum yebrown, kwakafanana ne corundum chena, uye kuoma kwacho kunogona kuva 2200-2300Kg/mm2. Kuoma kwacho kwakakwira kupfuura kwe corundum chena uye kwakaderera zvishoma pane kwe brown corundum.

07Zirconium Corundum
Zirconium corundum imhando ye corundum yakagadzirwa nekunyungudutsa alumina ne zirconium oxide pakupisa kwakanyanya muchoto chemagetsi, ichiita crystallizing, inotonhodza, ichipwanya uye ichiongorora. Chikamu chikuru chekristaro che zirconium corundum i α-Al2O3, chikamu chechipiri chekristaro i baddeleyite, uye kunewo chikamu chidiki chegirazi. Maumbirwo ekristaro uye chimiro che zirconium corundum zvinhu zvakakosha zvinokanganisa kunaka kwayo. Zirconium corundum ine hunhu hwekuomarara kwakanyanya, kusimba kwakanaka, simba rakawanda, magadzirirwo akaomarara, simba rekukuya rakasimba, hunhu hwakagadzikana hwemakemikari, uye kuramba kupisa kwakanaka. Inoshandiswa zvakanyanya mumaindasitiri e abrasives uye refractory materials. Zvichienderana nehuwandu hwayo hwe zirconium oxide, inogona kukamurwa kuita mazinga maviri ezvigadzirwa: ZA25 ne ZA40.