QQI Shim
QQI SHIM StripS
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. The steel alloy and notch dimensions, as specified in AS 5371, are designed to provide indications when the base part is magnetized to at least 30 Gauss. The thin shims can conform to curved part surfaces, and they are typically affixed to a part using permanent adhesives.
QQIs are useful for setting up the magnetization parameters for part-specific techniques, and can be used to create an example part for the daily system performance check of the magnetizing equipment.
They are very important for the setup and balance of multi-directional fields, since they have circular flaws that show indications in all directions simultaneously.
Product Data
| CX-230 | 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. |
| CX-430 | 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 - Please not these may have a longer lead time. |
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CX4-230 |
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 - Please not these may have a longer lead time. |
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