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К нам в ремонт привезли клапан наполнения от гидравлического пресса.
Давление гидравлического пресса 200 кгс/см2 .
Материал – чугун.
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Первым этапом восстановления оборудования мы подготавливаем специальную оснастку и проводим дефектовку для выявления скрытых трещин. Данная процедура выполняется при помощи гидравлических испытаний и цветовой дефектоскопии.
Результат: на клапане образовалась сквозная трещина 30 мм через резьбу под штуцер.
Далее выполняем ремонт клапана наполнения гидравлического пресса по технологии:
- Проработка конструкторской документации;
- Разделка повреждений с торца клапана с повторным применением цветовой дефектоскопии для устранения всех микротрещин;
- Сварка согласно технологической карты (первый слой электродами UTP-8, последующие UTP 85 FN с проковкой и соблюдением температурного режима не более 80 градусов)
- Фрезеровка в рабочие габариты, расточка под штуцер, нарезка резьбы;
- Опрессовка и комплекс малярных работ.
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По результатам гидравлических испытаний после ремонта клапан наполнения выдерживает давление 290 bar
Клапан наполнения гидравлического пресса после ремонта:
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Примеры работ других деталей из чугуна
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