[Column] "Sampling Inspection of Heat-Treated Products" is fundamentally a matter of "Probability Theory."
"Is it really sufficient to rely solely on inspection and sampling of heat-treated products?" *Explanatory materials are being provided.*
The quality of heat-treated products needs to be examined by investigating the internal structure of the metal, which necessitates the destruction of the product for testing. As a result, the reality is that destructive testing through sampling or visual inspection of the appearance is conducted, but there are issues with these inspections. Sampling inspection, which is widely adopted for the inspection of heat-treated products, involves taking samples at a certain ratio and comparing the inspection results with the criteria to determine the pass or fail of the entire lot. Ideally, thorough quality assurance would require 100% inspection, but due to the nature of fracture and destruction, it is limited to a certain number... (The continuation will be introduced in the materials!) *For the continuation, please download and view the "Heat Treatment Quality Inspection Challenge Resolution Document."
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<Problem Solving Document Content> 1. Issues with the inspection of general heat-treated products 2. Sampling inspection is based on probability theory 3. Visual inspection is not a complete inspection 4. Risk of defective products flowing out 5. Full inspection is mainstream in Europe and the United States 6. Requirements for future heat treatment inspections 7. Solution with overflow inspection devices 8. Company overview / Contact information *For more details, please download the PDF or feel free to contact us.
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Microfix Co., Ltd. is a manufacturer of eddy current testing equipment that conducts non-destructive and non-contact inspections using eddy currents. We offer fully automated inspection devices for tapped holes (screw holes) utilizing eddy currents, as well as non-destructive and non-contact eddy current quality inspection devices for hardened parts.