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Catalogue

Lift Arc zapalování

Lift Arc zapalování, označované také jako „oddalovací zapalování“, je metoda pro start svařovacího oblouku při TIG svařování. Proces začíná tím, že se svářeč dotkne wolframovou elektrodou svařovaného materiálu. V tomto momentě začne svářečkou protékat velmi malý proud, který nepoškodí elektrodu ani materiál. Jakmile svářeč elektrodu mírně oddálí, elektronika svářečky tuto změnu rozpozná a automaticky zapálí plnohodnotný svařovací oblouk o nastavené síle. Tento způsob je pokročilejší než starší metoda škrtnutím, kde hrozilo znečištění svaru i elektrody vnesením wolframu do svarové lázně. Na rozdíl od vysokofrekvenčního „HF“ zapalování, které startuje oblouk bezkontaktně pomocí jiskry, Lift Arc nevytváří elektromagnetické rušení. Díky tomu je bezpečné jej používat v blízkosti citlivé elektroniky, jako jsou počítače nebo řídicí systémy strojů.

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