Simintin ƙarfe, galibi gami da baƙin ƙarfe simintin toka da baƙin ƙarfe (nodular) simintin ƙarfe galibi ana amfani da su don yin simintin ta hanyoyinyashi simintin gyare-gyare, Simintin gyare-gyaren harsashi, simintin yashi mai rufi ko asarar kumfa. Koyaya, don wasu yanayi na musamman, ana kuma amfani da tsarin simintin saka hannun jarin da aka rasa saboda kyawun samansu da daidaito mafi girma. A RMC, muna kuma da tha ikon simintin ƙarfe baƙin ƙarfe da ductile damadaidaicin asarar kakin saka hannun jariamfani da silica sol da gilashin ruwa don ginin harsashi.
Lokacin da baƙin ƙarfe ya yi sanyi sannu a hankali, simintin yana raguwa zuwa ƙarfe da carbon a cikin nau'i na graphite wanda ake kira graphitization. Karfe inda yawancin siminti ya lalace ta hanyar graphitization ana kiransa ƙarfen simintin toka. Bakin ƙarfe wanda ba a yi graphitization ba, i. e, duk carbon yana cikin sigar da aka haɗa, ana kiranta farin simintin ƙarfe. Tsarin graphitization yana buƙatar lokaci don haka, lokacin da ƙarfe na simintin ruwa ya yi sanyi da sauri, farin simintin ƙarfe zai haifar. Farin simintin ƙarfe yana da kwatankwacin kaddarorinsa da na manyan karafa na carbon. Koyaya, yana da rauni sosai kuma don haka ba a amfani dashi don sassa na tsari. Yana da amfani ga ɓangarorin da ke tattare da lalacewa. Ƙarfin ɗamara ya bambanta tsakanin 170 zuwa 345 MPa kuma yawanci kusan 240 MPa ne. Taurin yana daga 350 zuwa 500 BHN. Dangane da tsananin taurin, injin ɗin ba shi da kyau kuma ana gama shi da niƙa.
| Grey Iron Comparison | Simintin Kauri/mm | Sinadarin Halitta (（）) | |||||||
| China (GB/T 9439-1988) | ISO 185: 1988 | Amurka ASTM A48/A48M-03 (2008) | Turai (EN 1561: 1997) | C | Si | Mn | P ≦ | S ≦ | |
| HT100 (HT10-26) | 100 | Saukewa: 20F11401 | GJL-100 JL-1010 | - | 3.4-3.9 | 2.1-2.6 | 0.5-0.8 | 0.3 | 0.15 |
| HT150 (HT15-33) | 150 | No.25A F11701 | GJL-150 JL-1020 | 30 30-50 ~ 50 | 3.3-3.5 3.2-3.5 3.2-3.5 | 2.0-2.4 1.9-2.3 1.8-2.2 | 0.5-0.8 0.5-0.8 0.6-0.9 | 0.2 | 0.12 |
| HT200 (HT20-40) | 200 | No.30A F12101 | GJL-200 JL-1030 | 30 30-50 ~ 51 | 3.2-3.5 3.1-3.4 3.0-3.3 | 1.6-2.0 1.5-1.8 1.4-1.6 | 0.7-0.9 0.8-1.0 0.8-1.0 | 0.15 | 0.12 |
| HT250 (HT25-47) | 250 | No.35A F12401 No.40A F12801 | GJL-250 JL-1040 | 30 30-50 ：52 | 3.0-3.3 2.9-3.2 2.8-3.1 | 1.4-1.7 1.3-1.6 1.2-1.5 | 0.8-1.0 0.9-1.1 1.0-1.2 | 0.15 | 0.12 |
| HT300 (HT30-54) | 300 | No.45A F13301 | GJL-300 JL-1050 | 30 30-50 ~ 53 | 2.9-3.2 2.9-3.2 2.8-3.1 | 1.4-1.7 1.2-1.5 1.1-1.4 | 0.8-1.0 0.9-1.1 1.0-1.2 | 0.15 | 0.12 |
| HT350 (HT35-61) | 350 | Saukewa: F13501 | GJL-350 JL-1060 | 30 30-50 ~ 54 | 2.8-3.1 2.8-3.1 2.7-3.0 | 1.3-1.6 1.2-1.5 1.1-1.4 | 1.0-1.3 1.0-1.3 1.1-1.4 | 0.1 | 0.1 |
Yin simintin saka hannun jari (ko simintin kakin zuma da aka rasa) yana nufin samuwar yumbu a kusa da sifofin kakin zuma don ƙirƙirar nau'in sassa da yawa ko guda ɗaya don karɓar narkakken ƙarfe. Wannan tsari yana amfani da tsarin ƙirar ƙirar kakin da za a iya kashewa don cimma hadaddun sifofi tare da ingantaccen yanayi na musamman.s. Madaidaicin simintin saka hannun jarizai iya cimma daidaito na musamman don ƙanana da manyan sassa na simintin gyare-gyare a cikin kewayon kayan.
Don ƙirƙirar ƙirar ƙira, ƙirar kakin zuma, ko tari na alamu, ana tsoma su cikin kayan yumbu sau da yawa don gina harsashi mai kauri. Ana aiwatar da aikin de-wax sannan kuma tsarin bushewar harsashi ya biyo baya. Sannan ana samar da harsashin yumbu maras kakin zuma. Daga nan sai a zuba narkakken ƙarfe a cikin kogon harsashi na yumbu ko tari, kuma da zarar ya tabbata kuma ya sanyaya, an karye harsashin yumbun don bayyana abin da aka simintin ƙarfe na ƙarshe.
| Bayanan Fasaha na Simintin Zuba Jari a RMC | |
| R&D | Software: Solidworks, CAD, Procast, Pro-e |
| Lokacin Jagora don Ci gaba da Samfura: kwanaki 25 zuwa 35 | |
| Narke Karfe | Bakin Karfe na Ferritic, Bakin Karfe Martensitic, Bakin Karfe Austenitic, Hazo Hardening Bakin Karfe, Duplex Bakin Karfe |
| Karfe Karfe, Bakin Karfe, Karfe na Kayan aiki, Karfe Resistant Heat, | |
| Alloy na Nickle-base, Aluminum Alloy, Copper-base Alloy, Cobalt-base Alloy | |
| Ƙarfe Standard | ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS |
| Kayayyakin Ginin Shell | Silica Sol (Silica Precipitated Silica) |
| Gilashin Ruwa (Sodium Silicate) | |
| Cakuduwar Silica Sol da Gilashin Ruwa | |
| Sigar Fasaha | Nauyin yanki: 2 gram zuwa gram 200 |
| Matsakaicin Girma: 1,000 mm don Diamita ko Tsayi | |
| Min bangon kauri: 1.5mm | |
| Ƙunƙarar Simintin Ɗaukaka: Ra 3.2-6.4, Ƙunƙarar Mashina: Ra 1.6 | |
| Haƙuri na yin Simintin gyaran kafa: VDG P690, D1/CT5-7 | |
| Haƙuri na Machining: ISO 2768-mk/IT6 | |
| Core Inner: Ceramic Core, Urea Core, Water Soluble Wax Core | |
| Maganin Zafi | Daidaita, zafin jiki, ƙushewa, ɓarnawa, Magani, Ƙarfafawa. |
| Maganin Sama | Watsawa, Yashi / Harbin fashewa, Tushen tutiya, Nickel Plating, Jiyya na Oxidation, Foda, Zanen foda, Geormet, Anodizing |
| Gwajin Girma | CMM, Vernier Caliper, Ciki Caliper. Zurfin Gage, Tsawon Tsayi, Go/Ba Go Gage, Gyaran Gyaran Jiki na Musamman |
| Binciken Kimiyya | Binciken Tarin Sinadarai (Abubuwan sinadarai 20), Binciken Tsafta, Binciken Radiyo na X-ray, Analyzer Carbon-sulfur |
| Duban Jiki | Ma'auni mai ƙarfi, Tsayayyen Blancing, Kayayyakin Injini (Tauri, Ƙarfin Haɓaka, Ƙarfin Tensile), Tsawaitawa |
| Ƙarfin samarwa | Fiye da ton 250 a kowane wata, fiye da ton 3,000 a shekara. |
