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Research & Development Centre

Research & Development Centre

With a constant endeavor to enhance its Technology and to be best in the industry, Sunflag has successfully embraced “Clean Steel Technology” transferred by Daido Steel Japan and has developed steel with high cleanliness, low gas and low inclusion content that are used in critical applications.

Sunflag R&D Lab Is Equipped With modern machinery

Salient Features

Immersion Ultrasonic Testing Machine

Quality Highlights

Upright Metallurgical Microscope With Clemex Software

  • Automatic Motorised Stage & Auto Focus
  • Clemex Automated Inclusion Rating Analysis As per

– ASTME 45 Method A, C, D, E
– Din 50602 Method K, M,
– JlS G 0555,
– ISO 4967 compliant (DS)
– EN 10247 Complete analysis by all above
methods simultaneously

  • Automated Grain Size measurement
  • Phase analysis

Automatic Magnetic Flux Leakage Testing (Mflt)

  • Highly sensitive test method for detection of longitudinal defects on steel bars
  • No Coupling Liquid
  • Reliable and reproducible test results
  • Automatic marking and sorting of defective bars during testing
  • High production speed
  • Real time display of inspection results

Mflt Salient Features

Diameter Range5 to 140 mm
Probesup to 16
Channel Width5.0 mm
AC Frequency7 KHz
Rotationmax.1.800 rpm
Test Speedup to 2 m/s for 100% Material Scanning

Sunflag R&D Lab Is Equipped With Following State Of The Art Equipment

  • Scanning Electron Microscope with Energy Dispersive X—Ray Spectroscope (SEM—EDS) of Make — JOEL
  • Immersion Ultrasonic Testing Facility of Make — Olympus / Blue Star
  • Optical Microscope with Automatic Multiaxis stage Movement and Image Analysis software
  • Micro—hardness tester
  • Ferritometer
  • NABL Certified Testing Lab
  • R & D Centre Recognised DSIR Government of India

Scanning Electron Microscope With Eds

  • Key Function

– Microstructure analysis
– Quantitative 8L qualitative Analysis of Inclusions

  • Failure Analysis
  • Fractography
  • Inclusion with quantitative elemental analysis

Salient Features

Dimension of samples that can be tested :

– Round Bars :

  • Size 15-120 mm die.
  • Length 800mm
  • Round Corner Square Bars:
  • Size 60420 mm

UST Prob: 10 MHz — 6mm As Per Sep 1927

ECT For Bars

Acceptance Criteria

Minimum defect depth and length (FBH)

  • 0.7 mm FBH from 15—60 mm dia
  • 1.2 mm FBH above 60 dia

Minimum defect depth and length (SDH)

  • 0.5 mm x 10 mm {from 15—120 mm dia)
  • 0.3 mm SDH sensitivity can deduced by
    extrapolation depending on material SNR.

Phased Array Auto Ultrasonic Testing Salient Features

Phased Array Technology

Phased Array testing is a specialized type of ultrasonic testing that uses sophisticated multi- element array transducers and powerful instrumentation/software to steer ultrasonic beams through the test piece and map returning echoes.

No rotating movement, only electronic scanning is done:

  • Depth focalization for bar volume inspection (LW)
  • Electronic steering for bar surface inspection (SW)

Quality Highlights:

Capacity — 15 to 120 mm dia. Full bar volume inspection