SU1645882A1 - Device for wear-testing of materials under plastic deformation conditions - Google Patents

Abstract

The invention relates to the field of material testing for wear during plastic deformation. The purpose of the invention is to reduce the consumption of materials. From the actuator 13, the rotation is transmitted to the crankshaft 11, and through the connecting rods 9 and 10, reciprocating movement in opposite directions is reported to the rods 2 and 3 with samples 4 and 5. Thus, the latter alternately plastically deform the counterpiece 8, during which the samples wear out conditions characteristic of real processes. 1 hp f-ly. 1 il.

Description

This invention relates to the field of material testing for wear during plastic deformation.

The aim of the invention is to reduce material consumption due to repeated use.

The drawing shows a device for testing materials for wear.

The device contains guides 1, rods 2 and 3 installed in them with samples 4 and 5. Samples 4 and 5 are made in the form of rectangular parallelepipeds, installed side by side with a minimum gap and covered along the side surfaces by a quadrangular screen 6. Between the lower working planes of samples 4 and 5, the screen 6 and the anvil 7 form a closed volume, part of which is occupied by counter piece 8. On the opposite side of the samples, the ends of the rods 2 and 3 are connected to connecting rods 9 and 10 that interact with opposed necks of the knees of the shaft 11, fixed in fixed

bearings 12 and associated with the drive 13 of its rotation, made in the form of an asynchronous motor and gearbox.

The device works as follows.

The rotation drive 13 transmits rotation to a crankshaft 1, which, through the connecting rods 9 and 10, imparts a reciprocating movement in opposite directions to the rods 2 and 3 in the guides 1 and samples 4 and 5. When sample 5 starts moving downwards, sample 4 starts moving upwards and comes out of contact with the part of counterpiece 8 that it has deformed. After passing some way, sample 5 comes into contact with counterpiece 8 and begins to deform it plastically, with the result that counterpiece 8 is squeezed out of the volume under sample 5 into the released slot. sample 4. When this occurs, the friction of the plastically deformable contrasht 8 on the working surface of the sample 5 and the latter wear out, and the speed of the

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It is not the same over the surface of sample 5 (increases towards sample 4), which is typical of real processes. After sample 5 reaches its lowest point, it begins to move up, freeing the volume, and sample 4 - down, before deforming the counterpiece, 8 to its initial position.

Claims (3)

Claim 1. A device for testing materials for wear during plastic deformation, comprising a base, a counter-sample mounted on it, guides perpendicular to the base and mounted in them with a displaceable rod, designed to fix a sample of material on it, which is different that, in order to reduce the consumption of the material of the sample, it provides second guides parallel to the first second rod mounted in them, designed to fix a second sample of material on it, mounted by a closed screen perpendicular to the base, covering the counter piece and both rods with samples, and the mechanism of reciprocating movement of the rods in opposite directions . 2. The device according to claim 1, 1 and 9, so that the mechanism of reciprocating movement is made in the form of suspension and rotation, connected to the crankshaft with opposed necks and kinematically connected to them with corresponding rods. , hinge connected to the corresponding stem mi. 20  ///// ) Editor 3. Hodakova Compiled by V. Danilov Tehred M. Morgental / // /// /// /// /// Proofreader O. Tsiple