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Kaljenje

Kaljenje je postupak toplinske obrade koji se uglavnom primjenjuje na čelike radi povećanja tvrdoće, čvrstoće i otpornosti na trošenje. Metal se zagrijava iznad kritične temperature (u pravilu 750–900 °C, ovisno o sadržaju ugljika) dok se struktura ne pretvori u austenit, nakon čega se brzo hladi (kali) u vodi, ulju, polimernoj otopini ili zraku.
Brzo hlađenje pretvara austenit u martenzit, koji je vrlo tvrd, ali krt. Kaljenje se obično nastavlja popuštanjem.

Vrste peći:
• Električna muflna peć
• Komorna peć (box peć)
• Indukcijska peć
• Peć sa solnom kupelji

Primjena:
Rezni alati, kalupi, zupčanici, osovine, ležajevi

Molimo kontaktirajte nas.
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