Metal extrusion defect automatic identification method and system

CN117443989BActive Publication Date: 2026-07-07GUANGXI ACAD OF SCI +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI ACAD OF SCI
Filing Date
2023-11-07
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the metal extrusion process, existing technologies rely on manual identification of defective products, which poses safety hazards and is prone to errors, leading to defective products being mixed into the finished product. This poses a significant risk of product failure, especially in the aerospace and automotive industries.

Method used

Automatic marking devices are installed at the extrusion front beam outlet and the quenching and cooling system outlet. These devices are connected to a temperature measuring instrument and a PLC signal to achieve automatic marking. The devices include a cylinder imprinting device and a spray gun. They automatically mark product defects according to process parameters, avoiding manual operation.

Benefits of technology

It has achieved automated and intelligent product defect identification, reduced manual labeling errors, improved production safety and product quality reliability, and met the production requirements of high-end products.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automatic marking method for metal extrusion defects includes automatic marking devices installed at the extrusion front beam exit and the quenching channel exit. These devices are electrically connected to a PLC signal, which in turn is electrically connected to the extruder and the quenching channel signal. A thermometer A is installed above the extrusion front beam exit, and a thermometer B is installed at the quenching channel exit. Both thermometers A and B are electrically connected to the PLC signal. The temperature at the extrusion front beam exit and the quenching channel exit is used as the trigger condition for automatic marking, controlling the automatic marking devices to mark products produced online. This method allows for signal connection with the extruder and quenching system PLCs, enabling automatic marking at the extrusion front beam exit and the quenching cooling system exit, leaving a mark on the product. This facilitates subsequent processes in identifying and verifying scrap sections or removing them for scrap.
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