SU638637A1

SU638637A1 - Device for treating metal articles in melt

Info

Publication number: SU638637A1
Application number: SU772440235A
Authority: SU
Inventors: Георгий Иосифович Хаустов; Валентина Васильевна Виноградова; Аркадий Семенович Малкин; Борис Антонович Сохач; Алексей Иванович Евдохин; Николай Константинович Ерохов
Original assignee: Никопольский Ордена Ленина Южнотрубный Завод Им.50-Летия Великой Октябрьской Социалистической Революции
Priority date: 1977-01-03
Filing date: 1977-01-03
Publication date: 1978-12-25

Description

1one

Изобретение относитс к очистке поверхности металлических изделий в расплавах .The invention relates to the cleaning of the surface of metal products in melts.

Известна установка дл обработки металлических изделий в расплаве, содержаща ванну и обхватывающий ее футерованный нагреватель ij.A known device for treating metal products in the melt, containing a bath and enclosing it lined heater ij.

Нагрев ванны осуществл етс индукдионным способом неохлаждаемым инд ктором , подключенным к внешнему источнику переменного тока.The bath is heated by the induction method with an uncooled ind ctor connected to an external AC source.

Подключение индуктора к источнику переменного тока требует выполнени трехфазной обмотки нагревател -индуктора , устройство конденсаторной батареи и свповых контакторных панелей управлени режимом нагрева расплава. Кроме того, имеет место неравномерность распределени мощностей по фазам, потери электроэнергии от реактивньпс токов, а ремонт индуктора, расположенного в футеровке , производитс с большими затратами производственного времени, рабочейConnecting the inductor to the AC source requires the implementation of the three-phase winding of the inductor heater, the arrangement of a capacitor bank and the contactors for controlling the melt-heating mode. In addition, there is an uneven distribution of power across the phases, the loss of electricity from reactive currents, and the repair of an inductor located in the lining is expensive.

силы, требует замены материала футеровки .force, requires replacement of the lining material.

Дл повышени качества обработки путем гидролизааии и направленного движени расплава по периметру внутренних стенок ванны, вертикально закреплены U-образные электроды - ребра, не доход щие до ее дна.In order to improve the quality of processing by hydrolysis and directional movement of the melt around the perimeter of the inner walls of the bath, U-shaped electrodes — fins that do not reach its bottom — are vertically fixed.

Кроме того, ребра выполнены из маг нитной стали и установлены на рассто иии 2ОО-ЗОО мм от дна ванны, а зазор между ними равен 5-10 мм.In addition, the ribs are made of magnet steel and are set at a distance of 2OO-ZOO mm from the bottom of the bath, and the gap between them is 5-10 mm.

На фиг. 1 изображена установка, поперечный разрез; на фиг. 2 показан вид сверху.FIG. 1 shows the installation, cross section; in fig. 2 shows a top view.

Установка состоит из ванны 1 дл расплава, установленной с зазором ндукииоиного нагревател 2, зафутерованного в жаропрочный бетон 3. По периметру внутренних стенок ванны 1The installation consists of a bath 1 for the melt, installed with a gap of copper heater 2, lined with heat-resistant concrete 3. Along the perimeter of the inner walls of the bath 1

Claims

The U-shaped electrodes are vertically fixed — the ribs 4, which are not reaching the bottom 5 of the bath 1. The electrodes 4, like the bath 1, are made of magnetic steel and are set relative to each other with a gap of mm and at a distance from the bottom 5 equal to 2OO-300 mm, corresponding to the distance of the first coil of the heater 2 from the bottom 5 of the vaine 1. The work on the installation is performed as follows. When the heater 2 is turned on, a pulsating current is induced to the source of winding in the body of bath 1 and the electrically conducting melt. Electrodes 4 receive a pulsed polarity. With the passage of a constant pulse component through the melt, the latter is subjected to hydrolysis, which contributes to the intensification and improvement of the quality of etching. The pulsed magnetic flux created by the inductor 2 from the unipolar current, closed on the body of the bath 1 and the ribs 4, forms a wave oscillation of the melt, which contributes to the intensity of metal descaling. Electrodes 4, 1 of that, bear different charges, which increases the efficiency of heat transfer. 1. Installation for processing metal products in the melt, containing a bath and lining induction heater wrapping around it, characterized in that, in order to improve the quality of processing by hydrolyzing and directional movement of the melt, V-shaped electrodes are vertically fixed along the perimeter of the inner walls of the bath ribs not reaching its bottom.

2. Installation under item 1, that is, so that the fins are made of magnetic steel and set at a distance of 200-300 mm from the bottom of the bath, and the gap between them is 5-1O mm. Sources of information taken into account in the examination: 1. USSR Copyright Certificate № 444837, cl. C 23 Q 3/00, 1969.

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