FIELD: metallurgy.
SUBSTANCE: invention relates to receiving of cold-rolled strips from low-carbon steel "08Ю" for following cold-pressing. Strip is implemented with thickness h = 0.6…2.5, mm, width B = 1000…1200, mm, surface roughness Ra=0.6…1.4, mcm, thickness difference of medium by width part of strip and its edges in one section in limits (0.018…0.022)•10-3•B, mm, strip wedging in one section h1-h2<0.015•10-3•B, mm, where h1 and h2 - thickness of opposite side edges of strip, mm.
EFFECT: it is improved following strips formability and increased yield at forming of rolled sheet of categories complex and extra complex total extension.
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Authors
Dates
2009-07-10—Published
2007-07-23—Filed