Сварочные электроды ЭА 400_10У — характеристики и использование

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электроды ЭА 400 10У

Сварочные электроды “ЭА 400/10У” очень популярны. С их помощью ведутся работы со сталями, имеющими повышенную стойкость к коррозии, и материалами, содержащими хром, никель, молибден, использующимися при работе в высокотемпературной среде с пиками до 350°С. Эта модель электродов выпускается несколькими заводами, в числе которых такие как Эсаб, Линкольн Электрик, ЛЭЗ и другие.

Наибольшее применение электродам найдено в химической и пищевой промышленности и производстве узкоспециализированного оборудование, которое постоянно работает в агрессивной и”разношерстной” среде.

Характеристики и применение электродов

Главной особенностью данных электродов являются параметры соединения. Оно может выдерживать агрессивные среды и хорошо справляется с коррозионной нагрузкой.

После сварки шов не требует дополнительной термообработки, что позволяет ускорять процесс его формирования. Изделие может применяться в штатном режиме гораздо быстрее.

С помощью электродов удается добиться высокой производительности труда и обеспечить комфортную работу. Наплавленный металл обладает большой прочностью. Соединение получается равномерным. В нем нет слабых мест, которые могли бы привести к его разрушению. Помимо прочего оно хорошо справляется с любыми внешними воздействиями. Вот какие параметры имеют электроды “ЭА 400/10У”:

  • покрытие: основное;
  • наплавка: 12 г/Ач;
  • производительность: 1,6 кг;
  • расход: 1,8 кг на 1 кг металла;
  • врем. сопротивление: 540 МПа;
  • предел текучести: 340 МПа;
  • отн. удлинение: 25%;
  • ударная вязкость: 90 Дж/кв. см.

Проводить сварку данными электродами можно во всех положениях, кроме вертикального “сверху-вниз”.

Перед началом работ необходимо провести прокалку стержней, чтобы привести их в рабочее состояние. Это делается при помощи специальной печи, разогретой до 130°С. Электроды помещаются в нее на час.

Данная модель электродов выпускается в нескольких диаметрах, каждый из которых предназначен для разной толщины металла. В зависимости от сечения стержней, вам потребуется применять разные токи для работы. Вот средние значения токов:

  • 2 мм: 30 — 60 А;
  • 2,5 мм: 40 — 80 А;
  • 3 мм: 60 — 110 А;
  • 4 мм: 100 — 160 А;
  • 5 мм: 120 — 180 А.

Точные значения можно подобрать во время работы или посмотреть упаковке в рекомендациях производителя.

Электроды работают от постоянного тока обратной полярности. В их составе имеется целый ряд хим. элементов: фосфор, молибден, хром, никель, сера. Вкупе с основным покрытием, такая “смесь” дает отличные сварные качества и хорошие показатели наплавленного металла.

Электроды “ЭА 400/10У” изготавливаются в полном соответствии с ГОСТом 9466-75 и сертификатами качества, действующими в нашей стране.

Как хранить электроды?

Расходники поставляются в упаковках по 5 кг, обернутых в термоусадочную пленку. Вместе с этим они должны правильно храниться, иначе быстро потеряют свои качества.

Первое о чем нужно позаботиться — температура помещения. Она должна составлять не более 15°С. Влажность в помещении должна быть на минимальном уровне, иначе покрытие впитает лишнюю влагу.

Кроме этого нужно проследить, чтобы на электроды ничего не упало или чтобы они сами не свалились с большой высоты. В противном случае на них может повредиться покрытие и работать будет очень сложно.

Заключение

Электроды получают от профессиональных сварщиков только положительные отзывы. Опытные мастера говорят, что они позволяют работать комфортно и быстро. Каждый изготовитель устанавливает свои цены, но в общем их можно назвать доступными. Приобрести стержни довольно просто, поскольку они выпускаются большим количеством предприятий.

 

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