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холодные трещины

1 plural

Terminological databases

Materjalitehnika terminibaas

ID 674202 Last modified 17.08.2025
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Domain welding - design - equipment - testingarc weldinggas welding
külmpraod preferred
cold cracks preferred
холодные трещины preferred
  • pärast keevitamist enamasti terase termomõju tsoonis karastumise ja vesiniku difusiooni toimel tekkinud praod (vrd kuumpragu, korduvkuumutuspraod)
    Good to know
    • Tänapäevane termin külmpragude kohta on vesinikpraod.
  • a type of weld cracking that usually occurs below 205 oC which may occur during or after cooling to room temperature, sometimes with considerable time delay (compare: hot crack, reheat cracking)
    Good to know
    • Three factors combine to produce cold cracks: stress, hydrogen and susceptible microstructure.
külmpraod preferred
vesinikpraod
cold cracks preferred
hydrogen cracks
холодные трещины preferred

Materjalitehnika terminibaas

ID 1142565 Last modified 17.08.2025
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Domain castingarc weldingmaterials sciencegas welding
külmpragunemine preferred
  • 1. külmas või peaaegu külmas valandis tardkahanemisest tingitud sisepingete toimel tekkinud pragunemine (praod); 2. keeviste pragunemine (praod) madalatel temperatuuridel (alla 200 °C) (vrd kuumpragunemine)
  • 1. cracks in cold or nearly cold cast metal due to excessive internal stresses caused by contraction; 2. a type of weld cracking that usually occurs in cold or nearly cold metal below 200 °C (compare: hot cracking)
  • 1. трещины в холодном или почти холодном литом металле из-за слишком сильных вызванных сжатием внутренних напряжений; 2. вид сварочных трещин, обычно появляющихся в холодном или почти холодном металле ниже 200 °C (ср. горячие трещины)
külmpragunemine preferred
cold cracking
холодные трещины

Metalliaabits

ID 436983 Last modified 08.11.2022
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холодные трещины
  • pärast keevitamist karastumise ja vesiniku difusiooni toimel tekkinud praod
Good to know
  • ekivad enamasti terase termomõju tsoonis. Nimetatakse ka vesinikpraod.
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холодные трещины

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