Igiti cy'icyuma kidafunze ni agace gato k'icyuma kidafunze. Gishobora gukoreshwa mu gusimbuza ubwoko butandukanye bw'amabuye y'agaciro n'atari icyuma, nka alumina, silicon carbide, umucanga wa quartz, ikirahure, n'ibindi.
Igishishwa cy'icyuma kidafunze gikoreshwa cyane cyane mu gusukura ubuso, gukuraho irangi no gukuraho ibyuma bidafite feri n'ibikoresho by'icyuma kidafunze, bigatuma ubuso bukomera kimwe, bityo bikaba byiza cyane mu gutunganya ubuso mbere yo gusiga irangi. Ugereranyije n'ibikoresho bidafunze bitari ibyuma, igishishwa cy'icyuma kidafunze gifasha kugabanya ikiguzi cy'imikorere n'ibyuka bihumanya ivumbi no kunoza aho bakorera.
Uduce tw’icyuma kidasesagura kimara igihe kirekire kandi gikora neza cyane, byoroshya inzira yo guturika, bikagabanya ikiguzi, bigatanga ireme rihamye ryo guturika, bifite ubukana bumwe kandi bisa neza.
| Umushinga | Ireme | |
| Ibinyabutabire% | Cr | 25-32% |
| Si | 0.6-1.8% | |
| Mn | 0.6-1.2% | |
| S | ≤0.05% | |
| P | ≤0.05% | |
| Ubukomere | HRC54-62 | |
| Ubucucike | >7.00 g/cm3 | |
| Gupakira | Buri toni mu ipantalo yihariye na buri toni igabanyemo udupaki twa 25KG. | |
| INGANO Y'ICYUMA CY'IMYANDA GISHYA | ||||||||
| Nomero ya ecran | In | Ingano ya ecran | G18 | G25 | G40 | G50 | G80 | G120 |
| 14# | 0.0555 | 1.4 | Impamyabumenyi yose |
|
|
|
|
|
| 16# | 0.0469 | 1.18 |
| Impamyabumenyi yose |
|
|
|
|
| 18# | 0.0394 | 1 | 75%iminota |
| Impamyabumenyi yose |
|
|
|
| 20# | 0.0331 | 0.85 |
|
|
|
|
|
|
| 25# | 0.028 | 0.71 | 85% by'iminota | 70% iminota |
| Impamyabumenyi yose |
|
|
| 30# | 0.023 | 0.6 |
|
|
|
|
|
|
| 35# | 0.0197 | 0.5 |
|
|
|
|
|
|
| 40# | 0.0165 | 0.425 |
| Iminota 80% | 70% iminota |
| Impamyabumenyi yose |
|
| 45# | 0.0138 | 0.355 |
|
|
|
|
|
|
| 50# | 0.0117 | 0.3 |
|
| Iminota 80% | Iminota 65% |
| Impamyabumenyi yose |
| 80# | 0.007 | 0.18 |
|
|
| 75%iminota | Iminota 65% |
|
| 120# | 0.0049 | 0.125 |
|
|
|
| 75%iminota | Iminota 65% |
| 200# | 0.0029 | 0.075 |
|
|
|
|
| 70% iminota |
