RU57909U1 - ADHESIVE TEST DEVICE - Google Patents

Abstract

The device for testing glue is intended for gluing samples of glue with normalized compression of samples between each other, holding the device in an oven. The utility model solves the problem of increasing the reliability of the device by providing the necessary compression force of the adhesive samples at high temperatures and reducing the complexity by eliminating the operation of tightening the screw with a specially designed calibrated wrench. This goal is achieved by the fact that in the device for testing glue, consisting of a body, a pressure with a spherical support and a socket for installing samples, an additional lever system is introduced with a measured weight installed on it, and the lever system is connected to the body, and the measured weight is made with a vertical slot .

Description

The proposed device is intended for gluing samples of glue with normalized compression between them, holding the device with samples in an oven, followed by a tensile test.

The well-known “Adhesion Tester for Testing Polymeric Materials” RF patent No. 2239817 dated 11/10/2004. The adhesion meter consists of a tear-off mechanism made in the form of a cage with a conical inner surface, a grip made in the form of a glass connected to the tear-off mechanism and a measuring device. The angle of inclination of the generatrix of the conical surface of the cage of the tear-off mechanism is 110-120%, the area of the tear-off hole of the test material is 27-30 mm. The grip is connected to the clip of the detachment mechanism by a bayonet connection.

Known "Sample for testing adhesive joints for uniform separation" RF patent No. 1614637 of 03.20.2005, containing contact loading elements and gaskets placed between them with glue applied on their surface, characterized in that in order to determine the elastic modulus of the adhesive joint contact loading elements are made in the form of bushings, and gaskets are in the form of ring washers, and contact loading elements and gaskets are made of 13 identical materials.

The known "Device for determining the stickiness of synthetic adhesives" RF patent No. 2025715 from 12.30.94, the invention relates to a device for determining the stickiness of synthetic resins and glues used in the manufacture of plywood and particle boards. The device contains a base on which the upper disk is mounted, the lower disk is mounted coaxially on the sleeve. At the bottom, the sleeve ends with a cup-shaped protrusion in which lead shot is placed to control the separation. A sample of the test adhesive is applied to the end surface of the disk. A voltage pulse is applied to the coil. Under

the magnetic field moves the sleeve with the disk up to contact with the disk.

The closest in technical essence to the proposed device is a device consisting of a housing, a socket for installing samples, pressure with a spherical support and a screw to provide the necessary bonding forces.

The disadvantages of this device are: the use to ensure the necessary bonding strength of a specially designed calibrated key and the inability to maintain the required compression force when placing the device in the furnace, because of the high temperatures there is a linear expansion of the materials of the device construction. These shortcomings did not actually allow testing.

The proposed utility model solves the problem of improving the reliability of the device for testing glue by providing the necessary bonding efforts at high temperatures and reducing labor intensity by eliminating the use of a specially designed calibrated key.

This goal is achieved by the fact that in the device for testing glue, comprising a housing with a pressure installed therein with a spherical support and a socket for installing samples made in the lower part of the housing, an additional lever system is introduced with a measured weight mounted on it, and the lever system is mounted on the housing devices, and the measured weight is made with a vertical slot.

The figure 1 presents a drawing of a device for testing glue.

The device for testing glue consists of the following main units: body 1, pressure with a spherical support 2, lever system 3, socket for installing samples 4, measured weight 5.

To test the glue on the proposed device, you must remove the measured weight 5, swing the lever 3 to failure, apply test glue to the end surfaces of samples 6 and 6a, install the lower

sample 6a into the housing socket 4, then lift the handle 7 to a horizontal position and hang the measuring weight 5 with the slot outward. Then the device for testing the glue is placed in the oven and kept at a certain temperature. The necessary compression force of the samples is ensured by the selection of the lever and the weight of the weight, which does not depend on the temperature difference and does not shift the samples placed in the furnace, thus increasing the reliability of the device for testing glue.

Claims (2)

1. A device for testing glue, comprising a housing with a pressure installed therein with a spherical support and a socket for installing samples with glue made in the lower part of the housing, characterized in that a lever system with a measured weight mounted on it is inserted into it, and the lever system is connected with the case of the device. 2. The device according to claim 1, characterized in that the measured weight is made with a vertical slot.