Opus principium de Dactile ferrum casting

Opus principium de Dactile ferrum casting

I. nodularization

• Mechanism: Add Magnesium / rara-Terra agentibus ad conflatilem ferrum in solidificatione, convertens graphite a filata ad sphaeras.
• Effectus: Reduces accentus concentration, enhancing tensile vires (~ 400-1,200 MPa) et Ductility (2-18% elongatio).
• Processus, temperatus 1,380-1,450 ° C, reactionem tempus 3-5 min.

II. Inoculation

• Mechanism: addere ferrosilicon inoculants ad conflare Graphite, crescente nucleation sites ad uniformis, bene sphaeris.
• Effectus: improves lenta, reduces gelidus et optimizes machinability.

III. & Alloying liquescens

• Cruda Materials: Pig ferrum (C 3.5-4.0%), Steel, Redi Scrap.
• Melting: 1,450-1,550 ° C in Electric / Cupho Furnorum; adjust Si (1.8-2.5%), MN (0.3-0.6%).

IV. Crisere & core faciens

• Ratio:

1. Arena mittentes: Patterns (lignum / metallum) + Green / resin harenae.
2. Perdidit spumam: Polystyrene patterns vaporize super infundens.

• Cororum: Hot-Box (Thermoset resinae) aut frigus-buxum (gaseous catalyst) processibus.

V. Fusce

• Temperature: 1,300-1,380 ° C ad florem.
• Imperium: tardus ad vitare turbulentiam; optimized gating ratio.

VI. Soliditas & Refrigerant

• Directional solidification: Riser collocatione + geleo cuneos ad vescendum DECREMENTUM zonis.
• Refrigerant Rate: Imperium ne rimas.

VII. Finition & calor curatio

• Purgato: Offa (Arena AMOTIO) + molere (portas / Flash).

• Calor curatio:

1. Annealing (leves accentus).
2. Normalizing (Refinite Pearlite).
3. Quenching / temperatio (ad gerunt resistentia).

VIII. Microstructure & Properties

• Structura: Sphaericae Graphite + Ferrite / Pearlite Matrix.

• Commoda:

1. Superiore robore / lenta quam griseo ferrum.
2. Lassitudine, repugnans (idealis dynamic onerat).

IX. Applications

• Automotive: engine cuneos, crankshafts.
• Industrial: Ventus Turbine Hubs, Gearbox Casings.
• Railway: Wheelsets, fregit disks.