Research and development of broaching methods on mandrel of large-sized pipe forgings

Кобелев, О. А.; Albul, S. V.; Кириллова, Н. Л.

doi:10.1088/1757-899x/709/4/044104

Cited by 20 publications

(8 citation statements)

References 31 publications

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“…By using these formulas, we determined the shear forces acting upon the pollutants for the continuous and discrete scraper cleaners. In the stationary process of cleaning of the belt, the total force P (H) applied in the plane of the belt to the top edge of the operating device of a cleaner is given by the following formula [2,5]:…”

Section: Results Of Investigationsmentioning

confidence: 99%

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Application of a Discrete Double-Row Scraper Cleaner as an Efficient Procedure of Cleaning of Belt Conveyors Aimed at Transporting Bulk Materials

Valiullin¹,

Кобелев²,

Naumova³

et al. 2021

Metallurgist

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We study an actual problem of cleaning of conveyor belts from adhered finely divided materials in the process of operation of belt conveyors. The material remaining on the belts causes numerous problems for the conveyor transport. In the course of time, adhered particles fall into the subconveyor space, thus violating the normal operation of the conveyor. This also leads to rapid failures of the roller supports, excessive abrasion of the working surface of the belt, and hence, to a more rapid wear of the conveyor belt. The procedure of cleaning of the belts enables one to remove the indicated problems. At present, there are various types of available cleaning units. Each of these units has its own advantages and disadvantages. In most cases, this complicates the choice of the required unit. We estimate the efficiency of application of a discrete double-row scraper cleaner of the conveyor belt. Its application increases the degree of cleaning without damaging the surface of the belt due to the presence of a counterbalance clamping attachment.

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Section: Results Of Investigationsmentioning

confidence: 99%

“…In various branches of industry, conveyor facilities, including belt conveyors, are extensively used for the transportation of large masses of bulk materials and rocks. The urgency of the problem of cleaning of the belts is confirmed by numerous scientific and practical works [1][2][3][4][5][6][7][8][9].…”

mentioning

confidence: 96%

Application of a Discrete Double-Row Scraper Cleaner as an Efficient Procedure of Cleaning of Belt Conveyors Aimed at Transporting Bulk Materials

Valiullin¹,

Кобелев²,

Naumova³

et al. 2021

Metallurgist

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show abstract

“…Recently, the development of different industry sectors [1][2][3][4][5][6][7][8][9][10][11] requires the solution of various technological production problems [12][13][14][15][16][17][18][19][20][21][22] and also increases the requirements for the efficiency and quality of production technologies [23][24][25][26][27][28][29][30]. One of the most promising and profitable methods to produce high-quality seamless pipes and rods is helical rolling.…”

Section: Introductionmentioning

confidence: 99%

Method for Calculating the Shape of Rolls for Helical Rolling

Gorbatyuk

2022

Materials Research Proceedings

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Abstract. The paper is devoted to solving the problem of determining the shape of the rolls of helical rolling mills, depending on the specified profile of the deformation zone. A universal calculation method has been proposed, thanks to which it is possible to determine the shape of the working surface of a roll for all types of helical rolling mills (with mushroom-shaped, cup-shaped, barrel-shaped and disc rolls), any relative arrangement of the rolling axis and rolls axes, and various locations of the deformation zone on the rolling axis. The proposed method is implemented as a standalone exe-application with a simple intuitive interface. The application allows you to output the calculation results into txt-files, which can then be imported into CAD systems to create 3D roll models.

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“…Obviously, the pattern of light intensity or LIC of the integrated lighting device depends on the lighting characteristics of individual LEDs and the geometry of their placement. In principle, the LIC of any LED, even with secondary optics, can be calculated by considering the course of the beams in a semiconductor crystal [4,5,6]. However, in practice a less costly approach is used.…”

Section: Introductionmentioning

confidence: 99%

Research of the synthesis of radiant intensity indicatrix of multicomponent beam diode module

et al. 2021

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Widespread use of semiconductor radiation sources in optoelectronic devices for various purposes requires further study of the mechanisms of formation of photometric characteristics of the integrated device in the near illumination zone, where the law of inverted squares is violated. A mathematical model of the multicomponent beam-diode module is proposed. On its basis the analysis of influence of the parameters of separate beam sources on the deformation of the indicatrix of radiant intensity at transition from the far zone to the near one is carried out. It is shown that the determining parameter of the indicatrix change in longitude and polar distance is the distribution in the plane of the modulus of the product of the radiant intensity of a single diode on its polar radius vector. The displacement of the polar angle of the maximum of the vector of the diode radiant intensity is more significant for wide radiation patterns than for concentrated ones. For specific parameters of diodes and geometry of their location the suitability of the proposed model for a priori modeling of beam-diode modules is illustrated.

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Research and development of broaching methods on mandrel of large-sized pipe forgings

Cited by 20 publications

References 31 publications

Application of a Discrete Double-Row Scraper Cleaner as an Efficient Procedure of Cleaning of Belt Conveyors Aimed at Transporting Bulk Materials

Application of a Discrete Double-Row Scraper Cleaner as an Efficient Procedure of Cleaning of Belt Conveyors Aimed at Transporting Bulk Materials

Method for Calculating the Shape of Rolls for Helical Rolling

Research of the synthesis of radiant intensity indicatrix of multicomponent beam diode module

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