Amakuru

Ibyiza by'amatafari ya magnesia karuboni ni ibi bikurikira:kurwanya isuri y’amazi n’ubushyuhe bwinshi. Mu bihe byashize, ikibazo cy’amatafari ya MgO-Cr2O3 n’amatafari ya dolomite ni uko yafataga ibice by’amazi, bigatuma imiterere y’amatafari icika, bigatuma habaho kwangirika vuba. Mu kongeramo graphite, amatafari ya magnesia karuboni yakuyeho iki kibazo. Ikiranga ni uko amazi yinjira gusa mu buso bw’aho akorera, bityo urwego rw’ibizamini ruherereye ku buso bw’aho akorera rudakora neza kandi rumara igihe kirekire.

Ubu, uretse amatafari ya magnesia karuboni asanzwe ya asphalt na resin-bonded (harimo n'amatafari ya magnesia atwitswe amavuta),Amatafari ya magnesia karuboni agurishwa ku isoko arimo:

(1) Amatafari ya Magnesia karuboni akozwe muri Magnesia arimo 96% ~ 97% MgO na grafiti 94% ~ 95%C;

(2) Amatafari ya Magnesia karuboni akozwe muri Magnesia arimo 97.5% ~ 98.5% MgO na grafiti 96% ~ 97% C;

(3) Amatafari ya Magnesia karuboni akozwe muri Magnesia arimo 98.5% ~ 99% MgO na 98% ~ C grafiti.

Dukurikije ingano ya karuboni, amatafari ya magnesia karuboni agabanyijemo ibice bikurikira:

(I) Amatafari ya magnesia atwitswe n'amavuta (ibipimo bya karuboni biri munsi ya 2%);

(2) Amatafari ya magnesia afatanye na karuboni (ibipimo bya karuboni biri munsi ya 7%);

(3) Amatafari ya magnesia karuboni akozwe muri resin ivanze na resin (ingano ya karuboni ni 8% ~ 20%, kugeza kuri 25% mu bihe bike). Antioxydants zikunze kongerwa ku matafari ya magnesia karuboni avanze na asphalt / resin (ingano ya karuboni ni 8% kugeza kuri 20%).

Amatafari ya Magnesia karuboni akorwa binyuze mu guhuza umucanga wa MgO utunganye cyane hamwe na grafiti y’ibishishwa, umukara wa karuboni, nibindi. Uburyo bwo gukora bukubiyemo inzira zikurikira: gusya ibikoresho fatizo, gusuzuma, gupima, kuvanga hakurikijwe imiterere y’ibikoresho n’imikorere y’ibicuruzwa, hakurikijwe uburyo bihuzwa. Ubushyuhe bw’ubwoko bw’ibikoresho buzamurwa kugera kuri dogere 100 ~ 200°C, kandi bigatogoteshwa hamwe n’icyuma gifata kugira ngo haboneke icyo bita MgO-C mud (uruvange rw’umubiri w’icyatsi). Ibikoresho bya MgO-C by’ibumba hakoreshejwe resin y’ubukonje (cyane cyane resin ya phenolic) bibumba mu gihe cy’ubukonje; ibikoresho bya MgO-C by’ibumba bihujwe na asphalt (bishyushye kugeza ku rugero rw’amazi) bibumba mu gihe cy’ubushyuhe (hafi ya dogere 100°C). Dukurikije ingano y’ibicuruzwa bya MgO-C n’imikorere yabyo, ibikoresho byo guhindagura, ibikoresho byo gusohora, ibikoresho byo gusohora, ibikoresho byo gusohora, ibikoresho byo gushyushya, ibikoresho byo gushyushya, n’ibikoresho byo gukurura bishobora gukoreshwa mu gutunganya ibikoresho bya MgO-C mu buryo bwiza. Umubiri wa MgO-C wakozwe ushyirwa mu itanura kuri 700 ~ 1200°C kugira ngo ushyuhe buhindure igikoresho cyo gufatanya mo karuboni (iyi nzira yitwa karuboni). Kugira ngo wongere ubucucike bw'amatafari ya magnesia karuboni no gukomeza ubufatanye, ibikoresho bisa n'ibyo gufatanya nabyo bishobora gukoreshwa mu gutera amatafari.

Muri iki gihe, resin y’ubukorikori (cyane cyane resin ya phenolic) ikoreshwa cyane nk'ikintu gihuza amatafari ya magnesia karuboni.Gukoresha amatafari ya magnesia karuboni akozwe mu buryo bwa synthetic resin bonded resin bifite inyungu z'ibanze zikurikira:

(1) Ibidukikije byemerera gutunganya no gukora ibi bicuruzwa;

(2) Uburyo bwo gukora ibicuruzwa mu gihe cy'ubukonje bwo kuvanga buzigama ingufu;

(3) Umusaruro ushobora gutunganywa mu gihe udatunganywa;

(4) Ugereranyije n'icyuma gifunga icyuma cya kaburimbo, nta gice cya pulasitiki gihari;

(5) Ubwinshi bw'ibinyabutabire bya karuboni (grafiti nyinshi cyangwa amakara ya bituminous) bishobora kongera ubushobozi bwo kudashira no kudashira kw'ibinyabutabire.