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Heat Treatment Of Strip Materials And Filament Materials
(AREA)
Abstract
FIELD: metallurgy. SUBSTANCE: method for producing strip for springs consists in that carbon steel strip 1.0-2.0 mm thick is subjected to isothermal hardening in lead bath or some other medium ensuring rapid cooling at 375-475 C to obtain structure of upper bainite. Then, strip is cold-rolled with total deformation above 80%. EFFECT: improved strip quality by increasing the number of bend-unbend up to failure and higher springing angle and increased strip material ultimate strength. 1 tbl
SU4164166/02A1986-12-221986-12-22Method for producing strip for springs
SU1424350A1
(en)