Контактная точечная сварка. Сущность. Основные данные. Учебное пособие - Евгений Кочунов

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мал сварочный ток, слишком велико усилие сжатия, изношена рабочая поверхность электродов. Недостаточность сварочного тока может вызываться не только его малым значением во вторичном контуре машины, но и касанием электрода вертикальных стенок профиля или слишком близким расстоянием между сварными точками, приводящим к большому шунтирующему току.

      Дефект обнаруживается внешним осмотром, приподниманием кромки деталей пробойником, ультразвуковыми и радиационными приборами для контроля качества сварки.

      Конец ознакомительного фрагмента.

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