Device for testing bonding strength of organic glass in casting molding and use method

Abstract

The invention relates to a device for testing the bonding strength of cast-molded organic glass, which comprises a bearing table, the bearing table comprises an upper fixed rack, a middle movable rack and a lower fixed rack, and the opposite surfaces of the middle movable rack and the lower fixed rack are provided with clamps for fixing a mold; the electrical assembly comprises a stepping motor arranged at the top of the bearing table and a motor controller arranged in the electric box base; the force application assembly comprises a ball screw which is connected with the stepper motor and penetrates through the upper fixed rack, and a tension sensor which is fixed at the lower end of the ball screw and is arranged on the middle movable rack; and the electric box base is fixedly supported below the bearing table. According to the scheme, the measuring device matched with the mold in size and shape is designed, and the most direct bonding strength of a product can be quantitatively measured after organic glass polymerization is completed; the discontinuous pulling process caused by manual control of the motor can be avoided through programming control of the motor, the demolding process can be more stable, and obtained data are more reliable.

Description

technical field [0001] The invention relates to the technical field of casting molding product testing, in particular to a device and a method for testing the bonding strength of plexiglass casting molding. Background technique [0002] The demoulding link of the cast molded product is an important part of the whole process that cannot be ignored, and the demoulding force is one of the more important process parameters. Traditional mechanical measurement devices have relatively fixed sample size and shape requirements. The measurement sample can generally be cut or trimmed by itself as required. The gadolinium-containing plexiglass can be regarded as a whole after it is completely cured in the mold, and its size and shape cannot be changed; while the silica glass mold is difficult to be clamped due to its rigidity, and is easily broken. Therefore, it is difficult to complete the determination of relevant mechanical parameters. Therefore, in order to quantitatively measure...

AI Technical Summary

Problems solved by technology

After the gadolinium-containing plexiglass is completely cured in the mold, it can be regarded as a whole, and its size and shape cannot be changed; and the silicon glass mold is difficult to be clamped due to its rigidity, and it is easily broken.

Therefore, it is difficult to complete the determination of relevant mechanical parameters

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