Iron imvi, kapena chitsulo chotuwira, ndi mtundu wachitsulo chopangidwa ndi graphite microstructure. Amatchulidwa ndi mtundu wa imvi wa fracture yomwe imapanga. Chitsulo cha imvi chimagwiritsidwa ntchito pamwambozitsulo zotuwakumene kuuma kwa chigawocho kuli kofunika kwambiri kuposa mphamvu yake yowonjezereka, monga zitsulo zamkati za injini zoyaka moto, nyumba zapampu, matupi a valve, mabokosi amagetsi, zolemera zowerengera ndi zokongoletsera zokongoletsera. Matenthedwe apamwamba a chitsulo cha Grey cast ndi mutu wake nthawi zambiri amagwiritsidwa ntchito popanga zophikira zachitsulo ndi ma disc brake rotor. Gray cast iron (yomwe imatchedwanso chitsulo cha grey cast) ndi gulu lachitsulo chophatikizirapo mitundu ingapo ya kalasi molingana ndi katchulidwe kosiyanasiyana kosiyanasiyana. Grey cast iron ndi mtundu wa iron-carbon alloy ndipo amatchedwa "imvi" chifukwa chakuti zigawo zawo zodulira zimawoneka zotuwa. Mapangidwe a metallographic a imvi kuponyedwa chitsulo makamaka amapangidwa ndi flake graphite, zitsulo masanjidwewo ndi tirigu malire eutectic. Panthawi yachitsulo chotuwa, Carbon ili mu flake graphite. Monga imodzi mwazitsulo zoponyera zomwe zimagwiritsidwa ntchito kwambiri, chitsulo chotuwira chimakhala ndi zopindulitsa zambiri pamtengo, kutayika ndi makina.
Katundu Wamakina a Cast Gray Iron | ||||||
| Kulimba Kwamphamvu kwa Zitsanzo Zosiyanitsa za Zitsulo za Gray Cast | ||||||
| Kusankhidwa Kwazinthu | Chithunzi cha HT100 | Chithunzi cha HT150 | HT200 | Mtengo wa HT250 | Mtengo wa HT300 | Mtengo wa HT350 |
| Zinthu Zofanana | 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 |
| Mphamvu ya Tensile (MPa) | ≥100 | ≥150 | ≥200 | ≥250 | ≥300 | ≥350 |
Kulimba Kwamphamvu kwa Zitsanzo za Cast-on za Iron za Gray Cast | ||||||
| Kusankhidwa Kwazinthu | Makulidwe a Khoma la Kuponya (mm) | Kuthamanga Kwambiri (MPa) ≥ | ||||
| Chitsanzo cha Bar Dia. (mm) | Zitsanzo za Block (mm) | Castings (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 | |
| Zindikirani: makulidwe akapitilira 300 mm, mawonekedwe enieni amakina amatsimikiziridwa ndi ogulitsa ndi ogula. | ||||||
Kulimba Kwamphamvu kwa Iron Iron Iron mu Makulidwe Osiyanasiyana a Khoma | ||||||
| Kukhuthala kwa Khoma (mm) | Kusankhidwa Kwazinthu | |||||
| 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 | |
| Kuthamanga Kwambiri (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 |
Zigawo Zoponyera Zitsulo za Gray Cast
Magawo a Gray Iron Casting Truck
Nthawi yotumiza: May-22-2021