Improving a resourcesaving surfacing technology using two ribbon electrodes with a controlled transfer of electrode's metal
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 1, Issue 12
Abstract
<p>This paper reports results of research into a resource-saving technology of surfacing with two ribbon electrodes with a controlled transfer of the electrode's metal from the end sides of ribbon electrodes and with an adjustable ratio between the ribbon electrodes' feed speed. To implement the proposed technology of surfacing, we designed a device that makes it possible to change the ratio between feed speeds of the first and second electrodes in a wide range. That provides for a controlled heat-mass transfer to the welding bath. As well as, accordingly, a controlled fusion of ribbon electrodes and the distribution of thermal energy throughout a welding bath. This makes it possible to improve quality of the surfaced products using a simple and reliable resource-saving device.</p><p>A given design makes it possible to optimize parameters for a pulsed mechanical transfer and prevent the deformation of ribbon electrodes, to ensure an alternating reciprocation motion of the ribbon electrodes' end sides at optimal frequency and amplitude. That provides for the optimal size of the surfaced bead while making it possible to reduce the consumption of an electrode's metal for loss and overheating, and, accordingly, the consumption of energy for melting, as well as ensure a resource saving technology of surfacing.</p><p>The process of surfacing with two electrodes, even when using fluxes recommended for arc welding, occurs partially similar to the electroslag process, because a certain percentage of current is shunted by the molten slag. This helps reduce the depth of welding and lowers the share of the base metal in the surfaced metal. The main advantage of surfacing with two ribbon electrodes is obtaining the surfaced metal with the required chemical composition as early as in the first or second layer, in contrast to the single-electrode surfacing where it is necessary to apply from 3 to 5 layers.</p>Results of research into the influence of oscillation frequency of ribbon electrodes have revealed that the maximum increase in a melting coefficient occurs at oscillation frequency in the range of 45‒55 Hz regardless of other mode parameters
Authors and Affiliations
Elena Lavrova, Vitaliy Ivanov, Vyacheslav Royanov, Irina Zakharova, Vladyslav Kibish
Keywords
Related Articles
- EP ID EP666252
- DOI 10.15587/1729-4061.2019.154681
- Views 64
- Downloads 0
Influence of the thermal factor on the composition of electronbeam highentropy ALTiVCrNbMo coatings
<p>This paper reports results of studying the element and phase compositions of electron-beam coatings based on the high-entropy alloy AlTiVCrNbMo, depending on the deposition temperature (in the range of 300...700 °С).<...
Development of procedure for assessing the degree of enviromental hazard from the sources of aquatic environment pollution
<p>The new procedure for evaluation of the degree of environmental safety of water sites based on the comparison of the influence of separate point sources of sewage discharge was developed. The use of this procedure wil...
Twostage treatment of solid waste leachates in aerated lagoons and at municipal wastewater treatment plants
<p>The two-stage technology of treatment of the leachates of the municipal solid waste (MSW) dumps in aerated lagoons and at municipal wastewater treatment plants (WWTP) has been studied. The study objective was to devel...
Analysis of influence of technical features of a pidcontroller implementation on the dynamics of automated control system
<p>Under conditions of intensification and maximization of production profitability, a problem of regulation, optimization and improvement of the structure of automatic control systems arises. To date, there are many top...
Development of a method for optimization calculation of a group of sound-insulating panels for airborn noise protection
<p>Various designs and procedures for calculating soundproof panels for protecting premises against airborne noise were considered. These procedures make it possible to calculate single-layer, two-layer and three-layer p...