Method for detecting deformation resistance of functional section of heated cigarette

By measuring the inner and outer diameters of the heating cigarette functional section and calculating the compressive area, combining the pressure-reducing head with a uniformly reduced speed to apply pressure and detect the load-stroke curve, the deformation resistance strength of the functional section is calculated, and the problem that the prior art cannot detect the deformation resistance of the heating cigarette functional section is solved, and an effective evaluation of the resistance of the radial pressure deformation ability of the heating cigarette functional section is achieved.

CN119688467APending Publication Date: 2025-03-25HUBEI CHINA TOBACCO INDUSTRY CO LTD
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Patent Information

Application Number
CN202411971949.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The prior art cannot effectively detect the anti-deformation performance of the functional section of the heating cigarette, especially after suction, and traditional hardness measurement methods are difficult to meet the detection needs of the heating cigarette.

Method used

By measuring the inner diameter and outer diameter of the heating cigarette functional section, calculating the pressure area, using the constant-speed dropping pressure to apply pressure to the functional section, detecting the load and stroke in real time, drawing the load-stroke curve, taking the pressure value corresponding to the point with the first second-order derivative of 0 in the curve, and calculating the deformation resistance strength of the functional section.

Benefits of technology

This method can effectively reflect the resistance of the functional section of the heating cigarette to radial pressure deformation after suction, solve the technical problem that the traditional method cannot be applied to heating cigarettes, and provides targeted detection methods, which are suitable for the diversity and complex structure of heating cigarettes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method for detecting the deformation resistance of a functional section of a heated cigarette, which comprises the following steps of: smoking the heated cigarette to be detected, measuring the inner diameter d and the outer diameter D of the functional section after smoking, and calculating the compression area A of the functional section; transversely fixing the smoked heated cigarette to be tested on the test platform, and enabling the functional section to be positioned below the pressure head; the pressure head is controlled to descend at a set constant speed in the radial direction of the to-be-detected heated cigarette, the pressure head continues to press down until the pressure head cannot move after making contact with the to-be-detected heated cigarette, the load of the pressure head and the moving distance of the pressure head are detected in real time, and a load-stroke curve is drawn; and taking a load corresponding to a point with a first second derivative of 0 in the load-stroke curve, converting the load into a pressure value F applied to the to-be-tested heated cigarette by the pressure head, and calculating the anti-deformation strength sigma of the functional section. The deformation resistance strength sigma obtained by the detection method can reflect the radial pressure deformation resistance condition of the functional section after suction, that is, the hardness of the functional section can be reflected.
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