| 摘要 |
The invention concerns an agent for producing protective atmospheres in heat treatment processing of metals, steel in particular, containing ethylene glycol, diacetone alcohol and basic agent, characterised in that it contains ethylene glycol from 69.5 to 80 weight %, diacetone alcohol from 19 to 30 weight % and as basic agent sodium tetraborate Na2B4O7 in amount from 0.5 to 3 weight %.
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