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    • 4. 发明授权
    • Process for manufacturing strip made of an iron-carbon-manganese alloy, and strip thus produced
    • 由铁 - 碳 - 锰合金制成的带材的制造方法以及由此制成的带材
    • US06358338B1
    • 2002-03-19
    • US09612415
    • 2000-07-07
    • Nicolas GueltonMichel FaralOdile Faral
    • Nicolas GueltonMichel FaralOdile Faral
    • C21D602
    • C21D8/0205C21D8/0215C21D8/0236C21D8/0273C22C38/04
    • The invention relates to a process for producing strip made of an iron-carbon-manganese alloy, in which: a thin strip, having a thickness of 1.5 to 10 mm, is cast directly on a casting machine from a liquid metal of composition, in percentages by weight: C ranging between 0.001 and 1.6%; Mn ranging between 6 and 30%; Ni≦10% with (Mn+Ni) ranging between 16 and 30%; Si≦2.5%; Al≦6%; Cr≦10%; (P+Sn+Sb+As)≦0.2%; (S+Se+Te)≦0.5%; (V+Ti+Nb+B+Zr+rare earths)≦3%; (Mo+W)≦0.5%; N≦0.3%; Cu≦5%, the balance being iron and impurities resulting from the smelting; the said strip is cold rolled with a reduction ratio ranging between 10 and 90% in one or more steps; and the said strip undergoes recrystallization annealing. The invention also relates to a strip that can be produced by this process.
    • 本发明涉及一种生产由铁 - 碳 - 锰合金制成的带材的方法,其中:将厚度为1.5至10mm的薄带直接浇铸在铸造机上,由组合物的液态金属, 百分比重量:C在0.001至1.6%之间; Mn在6〜30%之间; (Mn + Ni)范围在16〜30%之间的Ni <= 10% Si <= 2.5%; Al <= 6%; Cr <= 10%; (P + Sn + Sb + As)<= 0.2%; (S + Se + Te)<= 0.5%; (V + Ti + Nb + B + Zr +稀土)<= 3% (Mo + W)≤0.5%; N <= 0.3%; Cu <= 5%,余量为铁和由冶炼产生的杂质;所述条以一个或多个步骤的10%至90%的压缩比进行冷轧; 并且所述条经历重结晶退火。本发明还涉及可以通过该方法生产的条。
    • 7. 发明授权
    • Method of fabricating “TRIP” steel in the form of thin strip, and thin strip obtained in this way
    • 以薄带形式制造“TRIP”钢的方法,以这种方式获得的薄带
    • US06328826B1
    • 2001-12-11
    • US09621089
    • 2000-07-21
    • Thierry IungOdile FaralMichel FaralMichel BabbitChristophe Issartel
    • Thierry IungOdile FaralMichel FaralMichel BabbitChristophe Issartel
    • C21D800
    • C21D8/0215C21D1/20C21D8/0226C21D2211/001C21D2211/002
    • The invention provides a method of fabricating “TRIP” steel in the form of thin strip, wherein: a strip from 1.5 to 10 mm thick, preferably from 1 to 5 mm thick, is cast directly from liquid steel having the composition (in weight percent) C % from 0.05 to 0.25, (Mn+Cu+Ni) % from 0.5 to 3, (Si+Al) % from 0.1 to 4, (P+Sn+As+Sb) % not greater than 0.1, (Ti+Nb+V+Zr+rare earths) % less than 0.3, Cr % less than 1, Mo % less than 1, V % less than 1, the remainder being iron and manufacturing impurities; said strip is hot rolled on-line in one or more passes at a temperature higher than the Ar3 temperature of said steel and with a reduction ratio from 25 to 70%; first forced cooling of said strip is carried out at a cooling rate from 5 to 100° C./s; the strip remains at temperatures from 550 to 400° C. for the time needed for bainitic transformation to occur therein with a residual austenite content greater than 5%, while preventing the formation of perlite, after which the transformation is interrupted by second forced cooling of said strip to a temperature below 400° C.; and said strip is coiled at a temperature below 350° C.
    • 本发明提供一种以薄带形式制造“TRIP”钢的方法,其中:从1.5至10mm厚,优选1至5mm厚的条直接从具有组成(以重量百分比计) )C%为0.05〜0.25,(Mn + Cu + Ni)%为0.5〜3,(Si + Al)%为0.1〜4,(P + Sn + As + Sb)%为0.1以下,(Ti + Nb + V + Zr +稀土)%小于0.3,Cr%小于1,Mo%小于1,V%小于1,余量为铁和制造杂质;所述条在一起热轧在一起 或更高的温度在高于所述钢的Ar 3温度的温度下进行,并且压缩比为25至70%;所述条的首先强制冷却以5至100℃/ s的冷却速率进行 在550至400℃的温度下保持贝氏体转变所需的时间,残余奥氏体含量大于5%,同时防止珍珠岩的形成,之后转变为 通过将所述条的第二次强制冷却至低于400℃的温度来破坏; 在350度以下的温度下盘卷