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https://doi.org/10.15587/2312-...
Article . 2017 . Peer-reviewed
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Investigation of electrocontact annealing in the production process of steel welding wire

Authors: Khrebtov, Evgeniy;

Investigation of electrocontact annealing in the production process of steel welding wire

Abstract

The possibility of replacing the technological operation of direct heating in the furnace used in the process of production of steel welding wire for performing electrocontact heating to improve the quality of performed operations and improve the characteristics of the wire is considered. An experimental unit with a special arrangement of the electrocontact rollers with respect to the wire with the possibility of cooling is developed. Using the experimental unit of electrocontact heating, the mechanical parameters of the copper-plate welding wire are obtained for the technological route for production of wire with a diameter of 1.6 mm:– ultimate strength – 770÷850 N/mm2;– elongation – 5÷10 %.For the production of wire diameters of 1.2 mm:– ultimate strength – 700÷770 N/mm2;– elongation – 5÷10 %.These values satisfy the conditions for further wire processing and correspond to the requirements for the finished product.The effect of direct current heating on the formation of the structure and the change in the mechanical properties of the welding wire СВ08Г2С is shown, namely, it provides the necessary strength of the wire and prevents the formation of «work hardening». Work hardening causes the wire to break when the drawing mill is working. The use of automatic temperature control by adjusting the supply of current for heating the wire has made it possible to ensure homogeneity of the internal structure of the wire and to reduce the number of breaks by 80 %.

Рассмотрены результаты экспериментальных и теоретических исследований по определению условий реализации электроконтактного отжига в процессе производства стальной сварочной проволоки. Показано влияние прямого нагрева током на формирование структуры и изменение механических свойств сварочной проволоки СВ08Г2С. С помощью экспериментальной установки электроконтактного нагрева получены промежуточные значения параметров проволоки, удовлетворяющие условиям дальнейшей обработки проволоки одновременно с соответствием готовой продукции к выдвигаемым требованиям.

Розглянуто результати експериментальних і теоретичних досліджень щодо визначення умов реалізації електроконтактного відпалу в процесі виробництва сталевого зварювального дроту. Показано вплив прямого нагріву струмом на формування структури і зміни механічних властивостей зварювального дроту СВ08Г2С. За допомогою експериментальної установки електроконтактного нагріву отримані проміжні значення параметрів дроту, що задовольняють умовам подальшої обробки дроту одночасно з відповідністю до вимог якості, що висуваються до готової продукції.

Keywords

сталевий зварювальний дріт; електроконтактний відпал; механічні властивості зварювального дроту, стальная сварочная проволока; электроконтактный отжиг; механические свойства сварочной проволоки, steel welding wire; electrocontact annealing; mechanical properties of welding wire, UDC 669.1

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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