Quantitative Quality Indicators (QQIs)

QQIs are artificial flaw (notched) shims that are attached to example parts, commonly used to demonstrate both field strength and direction within a part.

Available in several different configurations, QQIs are thin steel shims with etched patterns in circular and cross shapes to provide indications in all directions.

 

Available in:

  • CX-230 (set of 6)
  • CX-430 (set of 6)
  • CX-430 (set of 6)
  • CX4-230 (set of 6)

 

Description

Quantitative Quality Indicators (QQIs) are artificially-flawed, low-carbon steel specimens that you can use in magnetic particle inspection to verify your MPI procedures. They provide a quantitative method of establishing the correct field direction and strength that are needed to produce clear indications of flaws.

 

SPECIFICATION COMPLIANCE

  • AS 5371
  • ASTM E709
  • ASTM E1444
  • ASTM BPVC Section V Article 7
  • ASTM E3024

 

MAIN FEATURES

 

  • Improved inspection reliability.
  • Increased productivity through reducing the number of magnetising ‘shots’ that are needed.
  • A simple procedure set-up, particularly for multi-directional applications
  • Quantitative assessment: results can be compared with other parameters, such as Hall Effect Gaussmeter readings, to facilitate better process control.
  • Assured field balance for multi-directional MPI.
  • Effective assessment on any part, regardless of its shape.
  • Reusable if carefully applied and removed. Alternatively, they can be permanently mounted.
  • Helps prevent over-magnetisation.

 

MODEL DESCRIPTIONS

 

  • QQI Model# CX-230, Set of 6 – 0.75 inch (19 mm) square shim with circle-cross notch pattern, 0.002 inch (0.05 mm) thickness with a notch depth of 30% of shim thickness.
  • QQI Model# CX-430, Set of 6 – 0.75 inch (19 mm) square shim with circle-cross notch pattern, 0.004 inch (0.10 mm) thickness with a notch depth of 30% of shim thickness.
  • QQI Model# CX-430, Set of 6 – 0.75 inch (19 mm) square shim with circle-cross notch pattern, 0.004 inch (0.10 mm) thickness with a notch depth of 30% of shim thickness.
  • QQI Model# CX4-230, Set of 6 – 0.79 inch (20 mm) square shim with four circle-cross notch patterns, to be cut by user into four separate shims. 0.002 inch (0.05 mm) thickness with a notch depth of 30% of shim thickness.

Request a callback

Would you like one of our team to reach out to you?
Enquiry Cart ×
Loading....