Top-Quality Forged Rotor Spindle Normalized, Rough-Turned & Finished to Boost Railway Performance

Forging transforms solid metal from one shape to another through plastic forming (hot or cold), while casting transforms liquid metal into a solid shape by pouring it into a mold. Forging improves mechanical properties, whereas casting focuses on melting and solidification.

Quality is determined by external observation (checking dimensions, surface defects like cracks or wrinkles) and internal inspection (analyzing chemical composition, macroscopic/microscopic structures, and mechanical properties like tensile strength and hardness using specialized instruments).

The process for circular forgings includes pier roughening, elongation, punching, and expanding. Free forging uses a horse screw for expanding holes, while ring rolling uses rolling for this step.

45# steel is a carbon structural steel with 0.42~0.50% Carbon, <=0.25% Chromium, 0.50~0.80% Manganese, <=0.25% Nickel, <=0.035% Phosphorus, <=0.035% Sulfur, and 0.17~0.37% Silicon.

The product complies with GB Standard and holds GB/T19001-2016 and ISO9001:2015 certifications.