Chitsulo choponyera, makamaka kuphatikiza chitsulo cha imvi ndi chitsulo cha ductile (nodular) chimagwiritsidwa ntchito makamaka poponya ndi njira zakuponya mchenga, kuponyera zipolopolo, kuponyera mchenga wokutira kapena kutaya thovu. Komabe, pazinthu zina zapadera, njira yotaya ndalama yotayika imagwiritsidwanso ntchito chifukwa chapamwamba komanso kulondola kwambiri. Ku RMC, tilinso ndi kuthekera koponya chitsulo chotuwira ndi ductile ndimwatsatanetsatane anataya sera ndalama kuponyerakugwiritsa ntchito silika sol ndi galasi lamadzi pomanga zipolopolo.
Chitsulo chachitsulo chikazizira pang'onopang'ono, simentiyo imawola kukhala chitsulo ndi carbon mu mawonekedwe a graphite omwe amatchedwa graphitization. Zitsulo zoponyera pomwe gawo lalikulu la simenti limawola ndi graphitization amatchedwa zitsulo zotuwa. Chitsulo choponyera chomwe graphitization sichinachitike, i. e, mpweya wonse uli mu mawonekedwe ophatikizidwa, umatchedwa chitsulo choyera. Njira yopangira graphitization imafuna nthawi ndipo chifukwa chake, chitsulo chamadzimadzi chikakhazikika mwachangu, chitsulo choyera chimatha. Chitsulo choyera chimafanana ndi zitsulo za carbon dioxide. Komabe, ndizovuta kwambiri ndipo motero sizigwiritsidwa ntchito pazigawo zamapangidwe. Ndizothandiza pazigawo zomwe kuvala kwa abrasive kulipo. Kulimba kwamphamvu kumasiyanasiyana pakati pa 170 mpaka 345 MPa ndipo nthawi zambiri kumakhala pafupifupi 240 MPa. Kuuma kumayambira 350 mpaka 500 BHN. Chifukwa cha kuuma kwakukulu, makinawo sakhala bwino ndipo nthawi zambiri amamaliza ndi kugaya.
| Kuyerekeza kwa Iron Gray | Kutaya makulidwe/mm | Chemical Composition ((()) | |||||||
| China (GB/T 9439-1988) | ISO 185:1988 | USA ASTM A48/A48M-03(2008) | Europe (EN 1561:1997) | C | Si | Mn | P ≦ | S ≦ | |
| HT100 (HT10-26) | 100 | Chithunzi cha 20 F11401 | GJL-100 JL-1010 | - | 3.4-3.9 | 2.1-2.6 | 0.5-0.8 | 0.3 | 0.15 |
| HT150 (HT15-33) | 150 | Chithunzi cha 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 | Chithunzi cha 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 | Chithunzi cha 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 | Chithunzi cha 50A 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 |
Investment kuponyera (kapena kutaya sera kuponyera) amatanthauza mapangidwe ceramic mozungulira mapatani sera kupanga Mipikisano kapena gawo limodzi nkhungu kulandira chitsulo chosungunuka. Njirayi imagwiritsa ntchito jekeseni wonyezimira wopangidwa ndi phula kuti akwaniritse mawonekedwe ovuta komanso apamwamba kwambiri.s. Precision Investment castingsakhoza kukwaniritsa kulondola kwapadera kwa zigawo zing'onozing'ono ndi zazikulu zoponyera muzinthu zosiyanasiyana.
Kuti apange nkhungu, ndondomeko ya sera, kapena masango amitundu, amalowetsedwa muzinthu za ceramic kangapo kuti apange chipolopolo chochindikala. Njira yochotsera sera imatsatiridwa ndi kuuma kwa chipolopolo. Kenako chigoba cha ceramic chopanda sera chimapangidwa. Chitsulo chosungunula chimatsanuliridwa m'zigoba za ceramic kapena masango, ndipo kamodzi kolimba ndi kuzizira, chipolopolo cha ceramic chimathyoledwa kuti chiwonetse chinthu chomaliza chachitsulo.
| Investment Casting Technical Data ku RMC | |
| R&D | Mapulogalamu: Solidworks, CAD, Procast, Pro-e |
| Nthawi Yotsogola Yachitukuko ndi Zitsanzo: masiku 25 mpaka 35 | |
| Chitsulo Chosungunuka | Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic stainless steel, Precipitation Hardinless Steel, Duplex Stainless Steel |
| Chitsulo cha Carbon, Chitsulo cha Aloyi, Chitsulo cha Chida, Chitsulo Chosagwira Kutentha, | |
| Aloyi ya Nickle-base, Aluminium Aloyi, Copper-base Alloy, Cobalt-base Alloy | |
| Metal Standard | ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS |
| Zofunika Zomanga Zipolopolo | Silika Sol (Precipitated Silika) |
| Galasi lamadzi (Sodium silicate) | |
| Zosakaniza za Silica Sol ndi Madzi Galasi | |
| Technical Parameter | Kulemera kwake: 2 mpaka 200 g |
| Kukula Kwambiri: 1,000 mm kwa Diameter kapena Utali | |
| Makulidwe a Min Wall: 1.5mm | |
| Kuponyera Mwankhalwe: Ra 3.2-6.4, Kukanika kwa Machining: Ra 1.6 | |
| Kulekerera Kutaya: VDG P690, D1/CT5-7 | |
| Kulekerera kwa Machining: ISO 2768-mk/IT6 | |
| Mkati Pakati: Ceramic Core, Urea Core, Madzi Osungunuka Sera | |
| Kutentha Chithandizo | Normalizing, Kutentha, Kuzimitsa, Annealing, Solution, Carburization. |
| Chithandizo cha Pamwamba | Kupukuta, Kuphulika kwa Mchenga / Kuwombera, Kuyika kwa Zinc, Kupaka kwa Nickel, Chithandizo cha Oxidation, Phosphating, Painting Powder, Geormet, Anodizing |
| Dimension Testing | CMM, Vernier Caliper, Mkati mwa Caliper. Depth Gage, Height Gage, Go/No go Gage, Special Fixtures |
| Kuyendera kwa Chemical | Chemical Compostion Analysis (20 chemical elements), Kuyanika Ukhondo, X-ray Radiographic Inspection, Carbon-Sulfur Analyzer |
| Kuyendera Mwakuthupi | Kulinganiza Kwamphamvu, Kuyimitsa Kokhazikika, Katundu Wamakina (Kulimba, Mphamvu Zokolola, Kulimba Kwambiri), Kutalikira |
| Mphamvu Zopanga | Kupitilira matani 250 pamwezi, matani oposa 3,000 pachaka. |
