Электроды Э42

30 июля 2015г. - 16:54 3578 просмотров

Электроды Э42Электроды в любом виде – это самый доступный материал для сварки. Как правило, каждая модель и марка электрода отличается от других своими определенными свойствами. При их выборе нужно в первую очередь учесть характер выполняемой работы, марку самой стали, ее толщину. Все эти показатели будут определяющими в выборе материала для сварки.

Кроме того, сварочные электроды, относящиеся к одной группе, могут иметь разные марки. Сварочные электроды Э42 отличаются не только разными покрытиями, они различны и с технологической стороны. Распространенными электродами считаются электроды Э42 AHO 6. Они используются непосредственно в работе с углеродистой сталью, содержание углерода в которой измеряется 0, 25%. Они работают за счет источника как переменного, та и непеременного тока.

Сварочные электроды Э42 AHO-6
Электроды марки Э42 обладают диаметром 4-6 мм, в массе по электродам -1,6 кг в соотношении на 1 кг металла. Шов включает в себя фосфор, серу, марганец, а также содержит кремний.

Значение тока

Диаметр и положение шва электродов Э42
Электроды данного типа представлены рутиловым покрытием, который состоит из диоксида титана.  Шов металла отличается высокой степенью устойчивости.

В сравнении с другими типами, Э42 имеют следующие отличительные признаки:

  • Усиленное, стабильное горение дуги
  • Сравнительно небольшие потери в материале
  • Корка шлака легко и свободно отделяется
  • Качественное образование шва

Все электроды данного типа обладают низкой чувствительностью как в процессе сварки влажного металла, так  в момент изменения длины самой дуги. Если используется высокая степень режимов работы с тавровым, к примеру, швом, то образуются поры в швах. Есть вероятность выполнения сварочных работ по грунтовому покрытию, толщина которого может быть от 20 до 25 мм, без какого – либо снижения механических свойств и возникновения пор.

Пример электродов сварочных Э42
Данный тип электродов также отличается тем, что зажигать дугу стало сравнительно легко.

Если говорить о сварочных электродах Э42 в общем понимании, то, к примеру, сварочные электроды по ГОСТ 9466-75 обладают коэффициентом наплавки в размере 10 г/Ач. Помимо этого, диаметр этих электродов составляет 4-6 мм. Средняя стоимость за 1 кг электрода равна 100 российским рублям.

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