Testing the efficiency of abrasive treatment of reconditioned parts using coolant cleaning in a magnetic sump

Avdeyev, Boris; Vyngra, A. V.; Bordiug, Aleksander

doi:10.1051/matecconf/201929800115

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…При резании, выдавливании, прокатке, штамповке, сверлении деталей и др. часто используют смазочно-охлаждающие жидкости (СОЖ), которые отводят теплоту от рабочего инструмента и заготовки, а также смазывают трущиеся детали [2, 3,4]. В процессе эксплуатации СОЖ загрязняется стружкой, твердой пылью, посторонними маслами и др.…”

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Experimental Study of Coagulation of Particles in a Magnetic Sedimentation

Masyutkin¹,

Avdeev²

2020

Vestnik of Kazan State Agrarian University

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In agriculture, a large number of different lubricating and cooling liquids are used in the operation, maintenance and repair of agricultural machinery. In the process of use, technical fluids become contaminated with foreign impurities and require periodic cleaning. Magnetic sedimentation tanks are well suited for this. The studies were carried out in order to determine the parameters (the magnitude and gradient of the magnetic field strength, the height of the apparatus, the concentration of particles), at which coagulation of particles is observed in a non-uniform magnetic settler. The experiments were carried out on a laboratory setup for studying coagulation in the working area of a magnetic sump. For a given magnetic system, the geometric dimensions of the apparatus were determined in such a way that the magnetic field acts in the entire working volume of the sump and effectively traps foreign metal impurities. The value of the magnetic induction of the field B is proportional to the square of the distance from the investigated point to the pole of the electromagnet Н0. At a distance of 300 mm and further, the magnetic force has almost no effect on the particle, so the height of the sump should be less. The lowest magnetic induction is observed in the middle of the coil. A decrease in the current in the winding entails a reduction in the length of the floccule; magnetic coagulation takes place when the concentration of particles in the coolant is more than 0.3 g/l, with a lower content, it is not observed due to significant distances between the particles; the effect of coagulation is noted in the entire area of action of the magnetic field, while the length of the floccules decreases with a decrease in concentration. The distance at which the effect of coagulation between particles is observed is determined by a complex function that depends on the current in the winding, the field strength, their distance from the pole of the electromagnet, and also on the size of the particles.

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Experimental Study of Coagulation of Particles in a Magnetic Sedimentation

Masyutkin¹,

Avdeev²

2020

Vestnik of Kazan State Agrarian University

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Examining efficient treatment of parts during ship repair with cutting fluids cleaning in magnetic sump

Avdeyev

Vyngra²

2020

Vestnik of Astrakhan State Technical University. Series: Marine Engineering and Technologies

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The article considers the problem of cleaning efficiency of cutting fluids used in the technological processes of parts treatment during ship repair. One of the cleaning instruments is a magnetic sump which has a high efficiency at a relatively low cost of operation and maintenance. The laboratory tests of the magnetic sump were carried out using a full-factor experiment, with changing certain parameters in order to identify the coolant purity index when cleaning from mechanical impurities. The dependencies are obtained that connect the value of the coolant purity index with the technological and construction parameters of the magnetic sump. The influence of the coolant purity index in the magnetic sump on the roughness of the polished surface of the samples was revealed. With a decreasing concentration of solids after cleaning in a magnetic sump, the surface roughness parameter of the samples decreases from 0.8 to 0.2 μm. The most rational parameters of the magnetic sump have been determined, at which the optimal surface roughness is observed when processing the engine crankshaft using coolant cleaned in a magnetic sump. The scheme of the experimental facility has been presented to determine the efficiency of cleaning the cutting fluid from the mechanical impurities in a magnetic sump, which includes a LATR adjustment transformer, a 220 / 12V step-down transformer, a voltmeter, an ammeter, a rectifier diode unit, and a magnetic sump. It has been stated that the errors of the presented experimental and calculated dependences did not exceed 10%. It has been inferred that cleaning the cutting fluid in the magnetic sump to maximum values allows increasing the intervals of machine time between cleaning the circle up to 70%.

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Testing the efficiency of abrasive treatment of reconditioned parts using coolant cleaning in a magnetic sump

Cited by 2 publications

References 10 publications

Experimental Study of Coagulation of Particles in a Magnetic Sedimentation

Experimental Study of Coagulation of Particles in a Magnetic Sedimentation

Examining efficient treatment of parts during ship repair with cutting fluids cleaning in magnetic sump

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