SU1397801A1 - Apparatus for testing materials in hydroabrasive medium - Google Patents

Abstract

The invention relates to tribological tests. The purpose of the invention is to improve the accuracy of testing due to a more uniform distribution of abrasive particles in the working environment. The device contains a cup 1, a drain nozzle 2, a rotor 3 with holders of 4 samples, placed coaxially in glass 1, a transverse flat perforated partition installed between the bottom of the glass 1 and holders of 4 samples, a replaceable sieve 6 fixed on the partition 5, water supply Schne nozzle 7, a conical bell 8 connected to the opposite bottom of the end of the glass 1, a safety cover 9 covering the conical socket 8. Replaceable sieve 6 is placed in the glass 1 and fixed on the perforated partition 5, pour the abrasive on the sieve 6 and This turns the unit. The liquid, the passage through the perforated partition 5 and the replaceable sieve 6, promotes a uniform distribution of the abrasive in glass I. The flow rate of the liquid in the conical socket B is reduced, and the abrasive particles are returned to the glass 1. Excess water flows through the conical socket 8 into the protective cover 9, from where it is removed through the drain nozzle 2. 2 or about (/ С о: Of. С

Description

This invention relates to the field of tribological testing.

The purpose of the invention is to improve the accuracy of testing due to a more uniform distribution of abrasive particles B in the working environment.

Figure 1 shows a device for testing materials in a hydroabrasive environment; fig 2 - section aa on fi g „K

The device comprises a cup 1, a drain nozzle 2, a rotor 3 with holders of 4 samples, placed coaxially in the glass 1, and a rotational drive (not shown rotor 3, transverse flat perforated partition 5 installed between the bottom of the glass 1 and the holders A of samples, replaceable a sieve 6 fixed on the partition 5, a supply pipe 7 with a flow regulator (not shown), connected to the bottom of the cup 1, a conical socket 8, is connected to the opposite bottom of the cup 1, a safety box 9, covering conical bell 8.

The device works as follows.

The replaceable sieve 6, the diameter of the cells, the size of the abrasive particles used, is placed in the cup I and secured to the perforated partition 5, the amount of abrasive required for the experiment is placed on the yoke 6, the rotor 3 with holders of 4 ibrl is placed in the cup 1 and drive it into rotation. Through the water supply - shchig nozzle 7 is fed into a glass of 1 g / g, bone without abrasive particles. With

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As the fluid passes through the perforated partition 5 and the replaceable sieve 6, upward flows are formed, which ensure uniform distribution of particles in the glass 1. The flow rate of the liquid trapped in the conical socket 8 decreases, and the abrasive particles from the socket 8 are returned to the glass 1. Excess water falls through the conical socket 8 into the protective casing 9, from where it is removed through the drain pipe 2. After the tests, the installation is turned off and the wear of the samples is determined.

Claims (1)

Invention Formula A device for testing materials in a hydroabrasive medium containing a cup, a drain pipe, a rotor with sample holders placed coaxially in the cup, and a rotor driving drive, characterized in that, in order to increase the test accuracy, due to a more uniform distribution of abrasive particles in the working medium, it is provided with a transverse flat perforated partition, installed between the bottom of the glass and sample holders, a replaceable sieve fixed on the partition from the holders side, the inlet pipe with flow rate set, is connected to the bottom nozzle, a conical funnel connected with a false bottom end protivop- cup, and a safety shroud covering a conical funnel, and the spout is mounted in the housing. Ф | /г.2