Nalika kita matak wesi werna abu-abu, kita strictly tindakake komposisi kimia lan mechanical situs miturut stardard utawa syarat saka pelanggan. Kajaba iku, kita duwe kemampuan lan peralatan kanggo nyoba yen ana cacat casting ing njeropengecoran wedhi wesi abu-abu.
Wesi ferrous sing isi karbon luwih saka 2% diarani wesi tuang. Sanajan wesi tuang bisa duwe persentase karbon antara 2 nganti 6,67, watesan praktis biasane antara 2 lan 4%. Iki penting utamane amarga kualitas casting sing apik banget.
Casting wesi abu-abu luwih murah tinimbangcasting wesi ulet, nanging nduweni kekuatan tarik lan daktilitas sing luwih murah tinimbang wesi ulet. Wesi abu-abu ora bisa ngganti baja karbon, nalika wesi ductile bisa ngganti baja karbon ing sawetara kahanan amarga kekuatan tensile dhuwur, kekuatan ngasilaken lan elongation saka wesi ductile.
Saka diagram keseimbangan wesi-karbon, bisa diweruhi yen wesi cor nduweni sementit lan ferit. Amarga persentase karbon sing luwih gedhe, jumlah cementite dhuwur sing nyebabake kekerasan lan kualitas brittleness sing dhuwur banget kanggo wesi tuang.
▶ Kelas lan Standar sing Kita Tindakake kanggo Wesi Cor Gray:
- ISO 185: 100, 150, 200, 250, 300
- ASTM A48: NO.20, NO.25, NO.30, NO.35, NO.40, NO.45
- DIN 1691: GG10, GG15, GG20, GG25, GG30
- EN 1561: EN-GJL-100, EN-GJL-150, EN-GJL-200, EN-GJL-250, EN-GJL-300
- BS 1452: 100, 150, 200, 250, 300
- AS 1830: T150, T220, T260, T300
▶ Kapabilitas Pengecoran Pasir kanthi tangan:
- • Ukuran Maks: 1.500 mm × 1000 mm × 500 mm
- • Bobot Range: 0,5 kg - 500 kg
- • Kapasitas Tahunan: 5.000 ton - 6.000 ton
- • Toleransi: On Request.
▶ Kapabilitas Pengecoran Pasir dening Mesin Molding Otomatis:
- • Ukuran Maks: 1.000 mm × 800 mm × 500 mm
- • Bobot Range: 0,5 kg - 500 kg
- • Kapasitas taunan: 8.000 ton - 10.000 ton
- • Toleransi: On Request.
▶ Prosedur Produksi Utama
• Desain Pola & Perkakas → Nggawe Pola → Proses Molding → Analisis Komposisi Kimia → Leleh & Tuang → Reresik, Grinding & Shot Blasting → Post Processing utawa Packing kanggo Pengiriman
▶ Kapabilitas Inspeksi Pengecoran Pasir
- • Analisis kuantitatif spektrografi lan manual
- • Analisis metalografi
- • Brinell, Rockwell lan Vickers inspeksi atose
- • Analisis properti mekanik
- • Tes impact suhu sing kurang lan normal
- • Pemriksaan kebersihan
- • UT, MT lan RT pengawasan
▶ Proses Post-Casting
- • Deburring & Cleaning
- • Dijupuk Blasting / Sand Peening
- • Perawatan Panas: Normalisasi, Quench, Tempering, Carburization, Nitriding
- • Perawatan Permukaan: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec
- •Mesin CNC: Nguripake, Milling, Lathing, Drilling, Honing, Grinding,
Jeneng Cast Iron | Kelas wesi Cast | Standar |
Wesi Cast Gray | EN-GJL-150 | EN 1561 |
EN-GJL-200 | ||
EN-GJL-250 | ||
EN-GJL-300 | ||
EN-GJL-350 | ||
Besi tuang ulet | EN-GJS-350-22/LT | EN 1563 |
EN-GJS-400-18/LT | ||
EN-GJS-400-15 | ||
EN-GJS-450-10 | ||
EN-GJS-500-7 | ||
EN-GJS-550-5 | ||
EN-GJS-600-3 | ||
N-GJS-700-2 | ||
EN-GJS-800-2 | ||
Austempered ulet wesi | EN-GJS-800-8 | EN 1564 |
EN-GJS-1000-5 | ||
EN-GJS-1200-2 | ||
SiMo Cast Iron | EN-GJS-SiMo 40-6 | |
EN-GJS-SiMo 50-6 |

