公开(公告)号：US20170029918A1

公开(公告)日：2017-02-02

申请号：US15112417

申请日：2014-01-17

Applicant: APERAM

Inventor： Roland Panier ,  Pierre-Louis Reydet ,  Nicolas Laurain

IPC: C21D9/52 ,  C22C38/50 ,  C22C38/40 ,  C22C38/04 ,  C22C38/02 ,  B21B17/02 ,  C21D1/42 ,  C21D1/38 ,  B23K31/02 ,  C22C30/00 ,  C22C19/05 ,  C22C38/52 ,  C21D8/02

CPC classification number: C21D9/52 ,  B21B17/02 ,  B21B2261/043 ,  B21C37/065 ,  B23K31/02 ,  B23K31/027 ,  B23K2101/06 ,  B23K2101/185 ,  B23K2103/04 ,  C21D1/38 ,  C21D1/42 ,  C21D6/001 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C21D8/0273 ,  C22C19/005 ,  C22C19/03 ,  C22C19/058 ,  C22C30/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/105 ,  C22C38/14 ,  C22C38/40 ,  C22C38/50 ,  C22C38/52 ,  C22F1/10 ,  F16L9/17 ,  Y02P10/253

Abstract: A method for manufacturing a strip having a variable thickness along its length, comprising the steps: an initial strip of constant thickness is provided; homogeneous cold rolling of the initial strip along its length in order to obtain an intermediate strip of constant thickness along the rolling direction; flexible cold rolling of the intermediate strip along its length in order to obtain a variable thickness strip, having, along its length, first areas with a first thickness (e+s) and second areas with a second thickness (e), less than the first thickness (e+s), continuous annealing of the strip. The plastic deformation ratio generated, after an optional intermediate recrystallization annealing, by the homogeneous cold rolling and the flexible cold rolling steps in the first areas is greater than or equal to 30%.

Abstract translation: 在可选的中间再结晶退火之后，通过均匀冷轧和第一区域中的柔性冷轧步骤产生的塑性变形率大于或等于30％。

公开(公告)号：US20170096727A1

公开(公告)日：2017-04-06

申请号：US15125935

申请日：2014-03-14

Applicant: APERAM

Inventor： Pierre-Louis Reydet ,  Fanny Jouvenceau ,  Roland Panier

IPC: C22C38/08 ,  C22C38/04 ,  C22C38/02 ,  B21B1/22 ,  B23K35/02 ,  B23K35/30 ,  B21B3/00 ,  C22C38/06 ,  C22C38/00

CPC classification number: C22C38/08 ,  B21B1/22 ,  B21B3/00 ,  B21B2001/221 ,  B21B2001/225 ,  B21B2003/001 ,  B23K35/0261 ,  B23K35/3066 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

Abstract: The invention relates to an alloy based on iron comprising, by weight: 35%≦Ni≦37% trace amounts≦Mn≦0.6% trace amounts≦C≦0.07% trace amounts≦Si≦0.35% trace amounts≦Cr≦0.5% trace amounts≦Co≦0.5% trace amounts≦Mo≦0.5% trace amounts≦S≦0.0035% trace amounts≦O≦0.0025% 0.011%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038% 0.0003%≦Ca≦0.0015% 0.0005%≦Mg≦0.0035% 0.0020%≦Al≦0.0085% the remainder being iron and residual elements resulting from the elaboration.

公开(公告)号：US10526680B2

公开(公告)日：2020-01-07

申请号：US15112417

申请日：2014-01-17

Applicant: APERAM

Inventor： Roland Panier ,  Pierre-Louis Reydet ,  Nicolas Laurain

IPC: F16L9/17 ,  C22C38/08 ,  C22C38/04 ,  C22C38/02 ,  C22C19/03 ,  C21D8/02 ,  C21D6/00 ,  B21C37/06 ,  C21D9/52 ,  C22C19/00 ,  C22F1/10 ,  B23K31/02 ,  C22C30/00 ,  C22C38/10 ,  C22C38/14 ,  C22C38/40 ,  C22C38/50 ,  C22C38/52 ,  B21B17/02 ,  C21D1/38 ,  C21D1/42 ,  C22C19/05 ,  B23K101/06 ,  B23K101/18 ,  B23K103/04

Abstract: A method for manufacturing a strip having a variable thickness along its length, comprising the steps: an initial strip of constant thickness is provided; homogeneous cold rolling of the initial strip along its length in order to obtain an intermediate strip of constant thickness along the rolling direction; flexible cold rolling of the intermediate strip along its length in order to obtain a variable thickness strip, having, along its length, first areas with a first thickness (e+s) and second areas with a second thickness (e), less than the first thickness (e+s), continuous annealing of the strip. The plastic deformation ratio generated, after an optional intermediate recrystallization annealing, by the homogeneous cold rolling and the flexible cold rolling steps in the first areas is greater than or equal to 30%.