SU1359726A1 - Appliance to breaking machine for determining adhesion of fibrous compounds in separation - Google Patents

Abstract

The invention relates to a test technique, is designed to determine the adhesion of fibrous compounds during delamination, and allows to increase the accuracy of adhesion determination by eliminating the deformation of the test material. The attachment to the tensile machine contains two rectangular pads 1.2c with pads for fastening the test soy //: el and od

Description

Dinene 3, at one end of which are hingedly mounted earrings 4, 5, designed to pivotally fasten to grippers 6, 7 of the breaking machine. At the other end of each block 1, 2, lugs 8 are made with holes, one (9) of which is round, centered on the plane of the pad of block 1, and the other (10) is bounded by two semi-circles, whose diameter is equal to the diameter of the round hole 9, interconnected by straight line segments, perpendicular to the platforms for fastening

one

The invention relates to a testing technique, namely to devices for determining the adhesion of fibrous compounds during delamination.

SRI.

The aim of the invention is to improve the accuracy of determining the adhesion of fibrous compounds during delamination by eliminating the deformation of the test material.

The drawing shows the scheme of the proposed fixture.

The attachment to a tensile machine contains two rectangular pads 1 and 2 with pads for fastening test compound 3, earrings 4 and 5, pivotally mounted at one end of pads 1 and 2 and intended for pivoting to grippers b and 7 of the breaking machine. The lugs 8 are made at the other end of each block (1 and 2), the hole 9 in one of which is round with the center in the plane of the site for fastening test compound 3, and in the other eye the hole 10 is bounded by two tie-rounds whose diameter is equal to the diameter of the round the holes 9, mated with straight-line segments, perpendicular, to the platforms for fastening the joint 3.

The fixture also contains a retainer 1 1 installed in the holes 9 and 10 of the lugs 8 to prevent

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3. In the holes 9, 10, a holder 11 is installed, which prevents translational movement of the pads 1, 2 relative to each other. The hole 10 in the lug 8 of the pad 2 allows you to set the required gap equal to the thickness of the test compound 3. When exfoliating the joint 3, the pads 1, 2 rotate around the holder 11, and the presence of the lugs 8 on the pads 1, 2 eliminates the occurrence of a compressive load from the translational movement of the pads 1 , 2 and prevents smth of 1 material of compound 3. 1 sludge.

progressive movement of pads

I and 2 are relative to each other.

The device works as follows.

The prepared for testing fiber joint 3 is secured with double-sided adhesive tape on pad 1 and 2, whereby the pad 1 and 2 are pushed apart, a clearance between the pad is equal to the thickness of joint 3, and the lugs 8 are secured from translational movement. After preparing the fixture for testing, the staples 4 and 5 are secured in the grippers 6 and 7 of the bursting machine and a splitting load is applied to the connection 3. The presence of a double-sided swivel of the earrings 4 and 5 increases the degree of freedom of the grip-pad connection and ensures an even separation of the test compound 3. As the connection 3 is stratified, the pads 1 and 2 rotate around the fixture

II in lugs 8, This prevents the test compound 3 from being worn by eliminating the translational movement of the pads 1 and 2 at the opposite ends of the applied load. Placing the center of the round hole 9 in the plane of the pad area 1 provides rotation of the blocks 1

and 2 outside the test compound 3 and excludes the effect of the compressive load on its edges. Making the hole 10, bounded by two semicircles, whose diameter is equal to the diameter of the round hole 9, provides only pivotal pads 1 and 2 when the joint 3 is tested. The conjugation of the semicircles of the hole 10 is in straight line segments perpendicular to the pads for fastening the joint 3, allowed It does not fix test compounds of various thickness on pads 1 and 2. As the test compound 3 is stratified, the amount of the splitting load is measured and the adhesion of the fibrous compounds is determined by its size and width of the test compound 3.

Claims (1)

Invention Formula Adaptation to a tensile testing machine for determining the adhesion of fibrous compounds during delamination, containing two rectangular pads with Editor T. Parfenova Order 6150/47 Compiled by V.Syiridov Tehred.M.Morgental Proofreader L. Patay Circulation 776 Subscription VNIIPI USSR State Committee on affairs of inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 JProduction and printing company, Uzhgorod, st. Project, 4 pads for fastening the test compound, on one ends of which are hinged earrings intended to pivotally fasten to the grippers of the bursting machine, are characterized in that, in order to improve the determination accuracy, at the other end of the pads lugs, the hole in one of which is round with the center in the plane of the site for fastening the joint, and in the other - is limited to two semicircles, whose diameter is equal to the diameter of the round hole, interconnected with each other in straight line segments, perpendicular to the platforms for fastening the joint, and the fixture is provided with in the holes of the lugs with a lock to prevent the pads from moving one another relative to the other.