SU1234105A1 - Method of argon-arc welding of aluminium alloys with nonconsumable electrode and asymmetrical different-pole current - Google Patents

Method of argon-arc welding of aluminium alloys with nonconsumable electrode and asymmetrical different-pole current Download PDF

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Publication number
SU1234105A1
SU1234105A1 SU843711709A SU3711709A SU1234105A1 SU 1234105 A1 SU1234105 A1 SU 1234105A1 SU 843711709 A SU843711709 A SU 843711709A SU 3711709 A SU3711709 A SU 3711709A SU 1234105 A1 SU1234105 A1 SU 1234105A1
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USSR - Soviet Union
Prior art keywords
current
welding
polarity
argon
direct
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SU843711709A
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Russian (ru)
Inventor
Лев Николаевич Быков
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Институт Электродинамики Ан Усср
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Priority to SU843711709A priority Critical patent/SU1234105A1/en
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Publication of SU1234105A1 publication Critical patent/SU1234105A1/en

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Изобретение относитс  к электросварке , преимущественно к аргонодуго вой сварке неплав щимс  электродом алюминиевых сплавов на асимметричном разнопол рном токе, и может быть использовано во всех отрасл х народного хоз йства дл  сварки конструкций из алюминиевых сплавов.The invention relates to electric welding, mainly to argon-arc welding by non-consumable electrode of aluminum alloys on an asymmetric current of different currents, and can be used in all sectors of the national economy for welding structures made of aluminum alloys.

Целью изобретени   вл етс  получение качественных сварных соединений путем создани  оптимальных режимов сварки, а также повьш1ение стойкости вольфрама.The aim of the invention is to obtain high-quality welded joints by creating optimal welding conditions, as well as increasing the resistance of tungsten.

На чертеже представлено изменение токов пр мой и обратной пол }знос тей в течение всего цикла сварки.The drawing shows the change in forward and reverse field currents during the entire welding cycle.

После зажигани  дуги (см.черт.) ток пр мой I|j пол рности достигает св.оего рабочего значени  за врем  t , а ток обратной пол рности 1, - за врем  t,, при этом благодар  тому, что врем  нарастани  тока пр мой пол рности больше, чем на обратной , рабочий ток пр мой пол рносAfter ignition of the arc (see sketch.), The direct current I | j of polarity reaches its operating value during time t, and the current of reverse polarity 1, during time t, due to the fact that the current rise time is my polarity is greater than the reverse, the operating current is right

ВНИИПИ Заказ 2935/15VNIIPI Order 2935/15

Произв.-полигр. пр-тие, г. Ужгород, ул. Проектна , 4Random polygons pr-tie, Uzhgorod, st. Project, 4

234105234105

ти, как обеспечивающий расплавление кромок воздействует -на уже очищенную их поверхность рабочим током обратной пол рности. От момента t 5 до t производ т сварку на установленном режиме. С момента t, после окончани  швй производ т заварку кратера, при этом благодар  тому, что рабочий ток пр мой пол рности 10 снижают за врем  t4 меньшее, чем t, - врем  снижени  тока обратной пол рности, происходит качественна  заварка кратера без образовани  черного налета и рыхлот, 15 Примеры осуществлени  способа приведены в таблице.As it provides melting of the edges, it acts on the already cleaned surface of the working current of reverse polarity. From the moment t 5 to t, the welding is performed in the set mode. From the moment t, after the end of the seam, the crater is welded, while due to the fact that the operating current of direct polarity 10 is reduced during time t4 less than t, the time of reverse polarity current reduction, high-quality crater welding takes place without black bloom and loosening, 15 Examples of the method implementation are given in the table.

Использование способа позвол ет повысить качество сварных соединений из алюминиевых сплавов особенно в начале их выполнени  и при заварке кратера, а также повысить стойкость электрода и производительность процесса .The use of the method allows to improve the quality of welded joints from aluminum alloys, especially at the beginning of their implementation and when brewing the crater, as well as to increase the durability of the electrode and the efficiency of the process.

Продолжение таблицыTable continuation

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Claims (1)

СПОСОБ АРГОНОДУГОВОЙ СВАРКИ НЕПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ АЛЮМИНИЕВЫХ СПЛАВОВ АСИММЕТРИЧНЫМ РАЗНОПОЛЯРНЫМ ТОКОМ, при котором в начале процесса ток прямой и обратной полярности плавно увеличивают до его рабочего значения, производят на этом значении тока сварку, а по ее окончании ток прямой л обратной полярности плавно уменьшают, отличающийся тем, что, с целью повышения качества сварных соединений и стойкости вольфрама при сварке протяженных швов, увеличение тока прямой и обратной полярности в начале процесса сварки и уменьшение его при окончании процесса сварки производят раедельно, при этом в начале процесса время нарастания тока прямой полярности устанавливают большим, чем время нарастания тока обратной полярности, а при окончании процесса время снижения тока прямой полярности устанавливают меньше, чем время снижения тока на обратной полярности.METHOD OF ARGON-ARC WELDING NON-MALABLE ELECTRODE OF ALUMINUM ALLOYS WITH AN ASYMMETRIC DIFFERENT CURRENT CURRENT, in which at the beginning of the process the current of direct and reverse polarity smoothly increases to its working value, welding is performed at this value of the current, and the current is lashed by its opposite polarity that, in order to improve the quality of welded joints and the resistance of tungsten when welding extended welds, increase the current of direct and reverse polarity at the beginning of the welding process and reduce it at windows The welding process is performed carefully, while at the beginning of the process, the rise time of the current of direct polarity is set longer than the rise time of the current of reverse polarity, and at the end of the process, the decrease time of the current of direct polarity is set less than the time of decrease of the current at the reverse polarity. SU. 1234105 А1SU. 1234105 A1
SU843711709A 1984-03-20 1984-03-20 Method of argon-arc welding of aluminium alloys with nonconsumable electrode and asymmetrical different-pole current SU1234105A1 (en)

Priority Applications (1)

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SU843711709A SU1234105A1 (en) 1984-03-20 1984-03-20 Method of argon-arc welding of aluminium alloys with nonconsumable electrode and asymmetrical different-pole current

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SU843711709A SU1234105A1 (en) 1984-03-20 1984-03-20 Method of argon-arc welding of aluminium alloys with nonconsumable electrode and asymmetrical different-pole current

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106695071A (en) * 2016-12-30 2017-05-24 唐山松下产业机器有限公司 Arc striking control method and device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 958053, кл. В 23 К 9/16, 1980. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106695071A (en) * 2016-12-30 2017-05-24 唐山松下产业机器有限公司 Arc striking control method and device

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