A surface defect detection device for a forged member

By employing techniques such as material clamping and transfer, pretreatment, active heating, and thermal imaging detection in the forging surface defect detection device, the problems of accurate identification of minute defects and low efficiency of full-surface inspection in high-temperature alloy forgings have been solved, achieving efficient and accurate detection results.

CN121762623BActive Publication Date: 2026-06-23CHINA NAT HEAVY MACHINERY RES INSTCO
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Patent Information

Application Number
CN202610261650.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-05
Publication Date
2026-06-23
Estimated Expiration
2046-03-05

AI Technical Summary

Technical Problem

Existing eddy current testing and magnetic particle testing methods are difficult to effectively identify minute surface defects in high-temperature alloy forgings, and traditional testing methods are inefficient for annular/cylindrical high-temperature alloy forgings and cannot achieve full surface coverage without dead angles.

Method used

A surface defect detection device for forgings is adopted, including a material clamping and conveying mechanism, a pretreatment mechanism, an active heating mechanism, a thermal imaging detection mechanism, a surface cleaning mechanism, and a surface grinding mechanism. Through non-contact thermal imaging detection and adaptive pretreatment, it is adapted to the detection needs of high-temperature alloy forgings.

Benefits of technology

It enables accurate identification and efficient detection of surface defects in high-temperature alloy forgings, reduces the false judgment rate, improves detection efficiency, adapts to the cleaning quality and heating uniformity of workpieces of different sizes, and ensures the accuracy of detection and the adaptability of the entire process.

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Abstract

The application belongs to the technical field of surface defect detection, and particularly relates to a forging part surface defect detection device, which comprises a base and a PLC control host computer, and further comprises: a material clamping and transferring mechanism fixedly arranged on the base and used for fixing an annular forging part to be detected; a pretreatment mechanism fixedly connected to one side of the upper end of the base and used for treating impurities and dirt on the surface of the forging part before detection; a positive heating mechanism fixedly connected to the rear side of the upper end of the base and located directly above the material clamping and transferring mechanism; and a thermal imaging detection mechanism. The application is adapted to high-temperature working conditions by means of non-contact detection, is not affected by material magnetism and conductivity, can penetrate a thin oxide layer, quickly covers a complex curved surface, accurately identifies micro-cracks, pits and other defects, greatly improves detection accuracy and efficiency, and simultaneously reduces manual labor intensity.
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