Ƙarfe mai launin toka, ko baƙin ƙarfe mai launin toka, nau'in ƙarfe ne na simintin ƙarfe wanda ke da ƙananan ƙirar graphite. Ana kiranta da launin toka mai launin toka na karyewar da ya yi. Ana amfani da ƙarfe mai launin toka don al'adalaunin toka baƙin ƙarfeinda taurin ɓangaren ke da mahimmanci fiye da ƙarfin ƙarfinsa, kamar tubalan ingin konewa na ciki, gidajen famfo, jikin bawul, akwatunan lantarki, ma'aunin ƙira da simintin ado. Babban ƙarfin wutar lantarki na simintin ƙarfe mai launin toka da ƙayyadaddun ƙarfin kai galibi ana amfani da su don yin girkin ƙarfe na simintin ƙarfe da rotors na diski. Grey jefa baƙin ƙarfe (kuma ana kiranta launin toka jefa baƙin ƙarfe) rukuni ne na baƙin ƙarfe na sama har da nau'i-nau'i na aji gwargwadon ƙa'idodi daban-daban. Grey simintin ƙarfe wani nau'i ne na ƙarfe-carbon gami kuma yana samun sunansa "launin toka" saboda gaskiyar cewa sassan sassan su suna launin toka. Tsarin metallographic na baƙin ƙarfe simintin launin toka ya ƙunshi graphite flake, matrix ƙarfe da eutectic iyakar hatsi. A lokacin baƙin ƙarfe launin toka, Carbon yana cikin graphite flake. A matsayin ɗaya daga cikin karafa na simintin gyare-gyaren da aka yi amfani da su sosai, simintin ƙarfe na simintin gyare-gyare yana da fa'idodi da yawa a cikin farashi, haɓakawa da machinablity.
Abubuwan Injini na Cast Grey Iron | ||||||
| Ƙarfin Ƙarfin Ƙarfi na Samfuran Samfuran Ƙarfin Simintin Ruwa na Grey | ||||||
| Zayyana Abu | HT100 | HT150 | HT200 | HT250 | HT300 | HT350 |
| Daidaita Materials | GG-10, EN-GJL-100 | GG-15, EN-GJL-150 | GG-20, EN-GJL-200 | GG-25, EN-GJL-250 | GG-30, EN-GJL-300 | GG-35, EN-GJL-350 |
| Ƙarfin Tensile (MPa) | ≥ 100 | ≥150 | ≥200 | ≥250 | ≥300 | ≥350 |
Ƙarfin Ƙarfin Ƙarfin Cast-kan Samfurori na Ƙarfin Simintin Ruwa | ||||||
| Zayyana Abu | Kaurin bangon simintin gyaran kafa (mm) | Ƙarfin Tensile (MPa) ≥ | ||||
| Samfurin Bar Dia. (mm) | Tsarin Samfurin (mm) | Simintin gyare-gyare (Reference) | ||||
| φ30 | φ50 | R15 | R25 | |||
| HT150, GG-15, EN-GJL-150 | 20-40 | 130 | / | 120 | / | 120 |
| 40-80 | 115 | 115 | 110 | / | 105 | |
| 80-150 | / | 105 | / | 100 | 90 | |
| 150-300 | / | 100 | / | 90 | 80 | |
| HT200, GG-20, EN-GJL-200 | 20-40 | 180 | / | 170 | / | 165 |
| 40-80 | 160 | 155 | 150 | / | 145 | |
| 80-150 | / | 145 | / | 140 | 130 | |
| 150-300 | / | 135 | / | 130 | 120 | |
| HT250, GG-25, EN-GJL-250 | 20-40 | 220 | / | 210 | / | 205 |
| 40-80 | 200 | 190 | 190 | / | 180 | |
| 80-150 | / | 180 | / | 170 | 165 | |
| 150-300 | / | 165 | / | 160 | 150 | |
| HT300, GG-30, EN-GJL-300 | 20-40 | 260 | / | 250 | / | 245 |
| 40-80 | 235 | 230 | 225 | / | 215 | |
| 80-150 | / | 210 | / | 200 | 195 | |
| 150-300 | / | 195 | / | 185 | 180 | |
| HT350, GG-35, EN-GJL-350 | 20-40 | 300 | / | 290 | / | 285 |
| 40-80 | 270 | 265 | 260 | / | 255 | |
| 80-150 | / | 240 | / | 230 | 225 | |
| 150-300 | / | 215 | / | 210 | 205 | |
| Lura: Lokacin da kauri ya wuce 300 mm, masu siyarwa da masu siye sun tabbatar da ainihin kaddarorin inji. | ||||||
Ƙarfin Ƙarfin Ƙarfa na Ƙarfe mai launin toka a cikin kauri daban-daban | ||||||
| Kaurin bangon Cast (mm) | Zayyana Abu | |||||
| HT100, GG-1, EN-GJL-100 | HT150, GG-15, EN-GJL-150 | HT200, GG-20, EN-GJL-200 | HT250, GG-25, EN-GJL-250 | HT300, GG-30, EN-GJL-300 | HT350, GG-35, EN-GJL-350 | |
| Ƙarfin Tensile (MPa) ≥ | ||||||
| 2.5-4.0 | 130 | 175 | 220 | / | / | / |
| 4.0-10 | 270 | |||||
| 10-20 | 100 | 145 | 195 | 240 | 290 | 340 |
| 20-30 | 90 | 130 | 170 | 220 | 250 | 290 |
| 30-50 | 80 | 120 | 160 | 200 | 230 | 260 |
Yankunan Simintin Ƙarfe na Grey Cast
Motar Simintin gyare-gyaren Ƙarfe mai launin toka
Lokacin aikawa: Mayu-22-2021