| 摘要 |
production of bars from pseudo--beta- titanium alloys for manufacture of bolts. SUBSTANCE: rolling of bars is performed in beta- area at two stages; final rolling performed in (alpha+beta)--area is accompanied by air cooling after each deformation. Rolling parameters are as follows: first stage - heating to Trp + (40-150)C, deformation degree, 97 to 97.6 %; second stage - heating to Trp +20C, deformation degree, 37 to 38 %; final rolling - heating to Trp - (20-50)C, deformation degree, 54 to 55 %. EFFECT: possibility of obtaining microstructures of 1-2 type acc. to scale; possibility of obtaining strength of no less than 85 kgf/sq. mm and conducting cold upsetting at degree of 75 %. 6 dwg, 2 ex
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