A method for testing the bonding performance of insulating glass outer channel sealant

Abstract

The invention discloses a method for detecting the adhesive property of a hollow glass external sealant. The thickness, the width and the length of the external sealant are respectively W0, average value B and L. The method comprises the following steps: (1) respectively bonding secondary frames on two symmetrical sides of the upper surface and the lower surface of the hollow glass by using a binder; (2) distributing four hydraulic jack devices at four corners of the hollow glass, wherein the hydraulic jack devices comprise hydraulic synchronous jacks, an upper beam and a lower beam; the upper beam is connected with the secondary frame on the upper surface of the hollow glass; and the lower beam is connected with the secondary frame on the lower surface of the hollow glass; (3) simultaneously pressurizing the four hydraulic synchronous jacks by using booster pumps with digital display oil pressure gauges, and when the numerical values of the digital display oil pressure gauges are not increased again, recording the load values F; and (4) pressurizing again, and measuring the tensile elongation W1 of the external sealant when the numerical values of the digital display oil pressure gauges begin to descend, calculating the tensile strength according to the formula as shown in the specification, and calculating the strain according to the formula as shown in the specification. According to the detection method, the adhesive property of the hollow glass external sealant of the finished product can be accurately detected, and the operation is simple.

Description

technical field [0001] The invention relates to a method for detecting the bonding performance of a sealant, in particular to a method for detecting the bonding performance of a hollow glass outer channel sealant. Background technique [0002] The insulating glass used in the curtain wall door and window project, the outer sealant of the insulating glass is aging due to the sun and the increase in the service life, thus affecting the safe use performance of the insulating glass. Insulating glass outer sheet falling accident; however, the existing insulating glass outer channel sealant bonding performance testing method is limited to the laboratory sample testing of non-finished sealant, and is not applicable to the finished insulating glass outer channel sealant. The key to the safe use performance appraisal technology of insulating glass for curtain wall doors and windows is to test the bonding performance of the finished sealant, which not only depends on the tensile stren...

AI Technical Summary

Problems solved by technology

[0002] The insulating glass used in the curtain wall door and window project, the outer sealant of the insulating glass is aging due to the sun and the increase in the service life, thus affecting the safe use performance of the insulating glass. Insulating glass outer sheet falling accident; however, the existing insulating glass outer channel sealant bonding performance testing method is only limited to the laboratory sample testing of non-finished sealant, and is not applicable to the finished insulating glass outer channel sealant

The key to the safe use performance appraisal technology of insulating glass for curtain wall doors and windows is to test the bonding performance of the finished sealant, which not only depends on the tensile strength of the structural adhesive itself, but also depends on the bonding surface treatment, primer material, glue quality, etc. Other process factors; this makes the laboratory test deviate greatly from the actual situation on site, and cannot truly reflect the quality of the insulating glass sealant used in the on-site curtain wall, door and window engineering

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