MAW Productivity Development and Reduction of its Harmful Effect on Human Organisms

Il’yaschenko, Dmitriy P.; Chinakhov, Dmitry А.; Gotovshchik, Yu.M.

doi:10.4028/www.scientific.net/amm.682.122

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…The authors have developed innovative design procedures and mathematical models of reliability parameters [3][4][5][6][7][8][9][10][11][12][13][14] compatible with:…”

Section: Methods Results and Discussionmentioning

confidence: 99%

System of Controlling the Reliability of Hydraulic Machinery in Oil and Gas Facilities

Zemenkov

Pimnev

Kurushina

2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Under current conditions of operating hazardous production facilities and the level of environmental regulations, a crucial issue is evaluation and control of technological machinery reliability in hydrocarbon transportation. The authors have developed methodologies and a complex of models and algorithms aimed at creating a support system for control decision-making. It is based on the concepts of the reliability theory and regulatory requirements on technological machinery operation. A mathematical complex has been developed for predicting technical state changes and reliability in order to improve the decision-making efficiency concerning the necessity of preventive maintenance. The example is fundamental statements on reliability evaluation using fluctuation analysis. IntroductionToday, the Russian Federation is implementing a complex of government programs intended to provide a reliable and safe operation of pipeline systems. Modernisation of the technical regulation system in 2009-2014, stiffening of requirements on production facility safety and corporate responsibility raised the significance of advancements in the field of equipment reliability monitoring and planning of measures for accident and incident prevention. The trunk line system is an elaborate complex of engineering structures with a system of providing safety and environmental compatibility. Analysis of operation practices on trunk line transportation facilities has demonstrated that around 95 % of incidents occur due to equipment failures and damage.

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“…The authors have developed innovative design procedures and mathematical models of reliability parameters [3][4][5][6][7][8][9][10][11][12][13][14] compatible with:…”

Section: Methods Results and Discussionmentioning

confidence: 99%

System of Controlling the Reliability of Hydraulic Machinery in Oil and Gas Facilities

Zemenkov

Pimnev

Kurushina

2016

IOP Conf. Ser.: Mater. Sci. Eng.

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“…2. Periodic movement of the end of the tape electrode along the direction of its supply changes the energy characteristics of the arc and, depending on the parameters of this oscillatory motion, leads to a change in the efficiency of melting of the tape electrode and the base metal [9]. Since the distribution of thermal power can be taken uniform across the width of the tape electrode, the heat input into the seam and its distribution along the depth of the heat-affected zone can be considered as an example of a local section of the tape electrode.…”

Section: Research Of Properties Of the Metal Of The Heat-affected Zonmentioning

confidence: 99%

Research of Properties of the Metal of the Heat-Affected Zone for Surfacing by Stape Electrode With the Controlled Transfer of the Electrode Metal

Lavrova¹

2019

Technology transfer: fundamental principles and innovative tech

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The quality of the deposited layer is determined by the conditions of its formation, as well as the properties of local zones, due to the parameters of the thermal cycle of surfacing (mechanical, microstructural, chemical, etc.). When surfacing the austenitic layer on pearlitic steels, the properties of the heat-affected zone, along with the resistance of the surface layer to corrosion, largely determine the performance and durability of the deposited product. To reduce the amount of heat input and effectively control the structure and properties of the heat-affected zone when restoring working surfaces by submerged arc surfacing, a method for surfacing with a tape electrode with controlled mechanical transfer of electrode metal is proposed. Studies have shown that the imposition of longitudinal sinusoidal vibrations on the end of the tape electrode can reduce the level of heat input in the heat-affected zone by increasing the efficiency of fusion of the base metal. At the investigated frequency of 50 Hz, the duration of the dots on the boundary of the fusion line and below it in the range 900 ... .1100 °С is less than when surfacing without controlled mechanical transfer. Reducing heat input into the heat-affected zone in the temperature range 900 ... 1100 °С provides a finer-grained structure. The use of forced vibrations of the end of the tape when surfacing a high-alloy austenitic layer on low-carbon steel makes it possible to obtain a finer-grained structure at the fusion boundary in the heat-affected zone. This will increase the resistance of the heat-affected zone to the formation of defects associated with a decrease in its mechanical properties.

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“…The stability of penetration can be ensured by additional technological measures to increase the efficiency of the surfacing process, such as improving the protection of the weld pool [2,3] and controlling the formation of the penetration zone in welding [4] and surfacing [5,6]. Are known works devoted to control the transfer of electrode metal into the weld pool when surfacing with a wire under influence of shielding gas [7,8], by impact of longitudinal magnetic field [9]; in [10] an example of the use of controlled mechanical transfer during surfacing with stripe electrode is given.…”

Section: Introductionmentioning

confidence: 99%

Controlling the Depth of Penetration in the Case of Surfacing with a Strip Electrode at an Angle to the Generatrix

Lavrova

Ivanov

2018

MSF

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It is proposed to use controlled mechanical transfer when the strip electrode of cylindrical products is deposited at an angle to the generatrix. The influence of the regime parameters on the stability of penetration of the base metal is determined. A mathematical model for calculating the configuration of the deposited layer is given. The analysis of advantages is carried out and conclusions are drawn about the prospects of the proposed technology for surfacing.

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MAW Productivity Development and Reduction of its Harmful Effect on Human Organisms

Cited by 8 publications

References 3 publications

System of Controlling the Reliability of Hydraulic Machinery in Oil and Gas Facilities

System of Controlling the Reliability of Hydraulic Machinery in Oil and Gas Facilities

Research of Properties of the Metal of the Heat-Affected Zone for Surfacing by Stape Electrode With the Controlled Transfer of the Electrode Metal

Controlling the Depth of Penetration in the Case of Surfacing with a Strip Electrode at an Angle to the Generatrix

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