2 results about "Bulge test" patented technology

The application discloses a kind of hydraulic bulging test piece forming quality control method, comprising the following steps: setting the bulging information and initial bulging information of standard test piece;Utilize the bulging information of standard test piece and the initial bulging information, based on mold, obtain the bulging test piece of standard morphology, the mold is the composite mold of toughened glass and diamond;Based on the mold, the bulging test piece of standard morphology is detected, and based on the bulging information of standard test piece, the control of hydraulic bulging test piece forming quality is realized.The application determines the bulging distance by calculating the light propagation time in air, the toughened glass propagation time and the diamond propagation time, and obtains the bulging height and axial feed amount in this way, which can observe the bulging height of the test piece in real time, master the bulging condition, so as to realize quality control.

The invention provides a method and device for determining the crack propagation capacity of a plate and electronic equipment, and relates to the field of plate performance detection, in particular to the method and device for determining the crack propagation capacity of the plate, in the process of performing a bulging experiment on the target plate, a load displacement curve of the target plate is obtained; intercepting a line segment between the highest point of the load displacement curve and the end point of the load displacement curve as a target line segment; according to the slope value of the target line segment, the crack propagation resistance index of the target board is determined, and the crack propagation resistance index represents the edge cracking resistance of a board product from the target board.