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Application filed by Інститут Металофізики Нан України, Институт металлофизики НАН УкраиныfiledCriticalІнститут Металофізики Нан України
Priority to UA95031357ApriorityCriticalpatent/UA23382A/en
Publication of UA23382ApublicationCriticalpatent/UA23382A/en
Heat Treatment Of Strip Materials And Filament Materials
(AREA)
Abstract
The invention relates to the metallurgy. A method comprises drawing to prescribed diameter in several passages with preparation of surface before every passage and intermediary thermal treatment by contact electrical heating. The drawing is carried out between intermediary thermal treatments - 35-45 % with application of wire on the surface before every passage of lubrication. The intermediary thermal treatment is carried out by contact electric heating during 20-25 sec to the temperature of 780 °C with soaking at the same temperature 5-10 sec with subsequent cooling in air, and finish thermal treatment - tempering and drawback are carried out by contact electrical heating during 20-25 sec to the temperature of 770-780°C with tempering into the water, drawback is carried out heating during 10-12 sec to the temperature of 300-310 °C with cooling in the air, thereafter finish machining is carried out.
UA95031357A1995-03-271995-03-27A process for preparation of half-finished product FROM THE steel wire
UA23382A
(en)