What is the production process for DC06 coils?
A: Using hot-rolled steel coils as raw material, the process involves pickling (removing iron oxide scale) → cold continuous rolling (rolling to the target thickness) → continuous annealing (restoring plasticity and refining grains) → leveling (eliminating yield plateaus and controlling surface roughness) → coiling and finishing (slitting, edge trimming, etc.).
Q: How does the continuous annealing process affect the performance of DC06 coils?
A: Continuous annealing eliminates cold rolling work hardening, reduces yield strength, increases elongation, and stabilizes r and n values, making it a key process for ensuring the ultra-deep drawing performance of DC06.
Q: What is the typical leveling elongation rate for DC06 coils?
A: The leveling elongation rate is typically ≥0.8%, which effectively eliminates yield plateaus and avoids tensile strain marks in subsequent stamping.
Q: What are some typical applications of DC06 coils in the automotive industry?
A: Used for complex parts requiring ultra-deep drawing, such as automotive fuel tanks, oil pans, door inner panels, engine hood inner panels, and tailgate inner panels.
Q: What are the application scenarios for DC06 rolls in the home appliance industry?
A: Suitable for components with high requirements for formability and surface quality, such as refrigerator liners, washing machine drums, air conditioner housings, and rice cooker inner pots.