Cast iron metallography - nodularity rate

The detection method of ductile iron nodularity rate is in accordance with American standards ASTM A247, E2567-13

Calculate using true roundness method ,Draw a circle with the widest point of the graphite particles as the diameter, and the ratio of the area of the graphite particles to the area of the circle

Spheroidization rate analysis method: Within unit sampling area, it belongs totrue roundness0.6aboveThe area of spherical graphite particles accounts for the proportion of the particle area in all metallographic images.

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Ductile iron nodularity detection software (FOD)Use artificial intelligence to improve the accuracy of determining the nodularity rate of ductile iron; and based on the principles of simple use and simple output, reduce the burden on inspection personnel, so that your company can ensure high product yield, improve company quality and industrial competitiveness, and ensure quality and product delivery.

  • Instantly identify the spheroidization rate of ductile iron;
  • Record the digital spheroidization rate identification results with one click;
  • One-click output of digital spheroidization rate report;
  • All identification results can be recorded digitally.

 

*Nodular cast iron: Gray cast iron is a high-performance cast iron that precipitates into spherical graphite after spheroidizing treatment.

  • The benefits of spheroidization rate software for subsequent processing
  1. Reduce wire hardness and deformation resistance.
  2. Increase wire ductility and cold forging material formability.
  3. Stable spheroidization rate,Product yield is improved.
  4. Avoid brittle fracture of screws.
  5. Reduced failure rate,Production costs are reduced.
  6. Reduced wear on the drawing die,Production efficiency is improved.
  7. It can effectively enable buyers and sellers to decide on acceptance criteria.

The influence of ductile iron spheroidization rate on products and processing

a. After cast iron is spheroidized, its structural strength can be increased to reduce the occurrence of brittle cracks.

b. Spheroidizing treatment can form a composite structure between the graphite in the cast iron and the fat iron base.

c. The higher the spheroidization rate of cast iron, the higher the shock absorption (damping coefficient) and impact resistance strength.

Cast iron metallography - nodularity rate inquiry