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    Method for the production of high-permeability magnetic steel
    1.
    发明授权
    Method for the production of high-permeability magnetic steel 失效
    高磁导率磁钢生产方法

    公开(公告)号：US4014717A

    公开(公告)日：1977-03-29

    申请号：US613956

    申请日：1975-09-16

    申请人： Mario Barisoni ,  Massimo Barteri ,  Roberto Ricci Bitti ,  Pietro Brozzo ,  Edmondo Marianeschi

    发明人： Mario Barisoni ,  Massimo Barteri ,  Roberto Ricci Bitti ,  Pietro Brozzo ,  Edmondo Marianeschi

    IPC分类号： H01F1/16 ,  C21D8/12 ,  C22C38/02 ,  H01F1/04

    CPC分类号： C22C38/02 ,  C21D8/1205 ,  C21D8/1261 ,  C21D8/1233

    摘要： A process for the production of oriented-grain high magnetic permeability steel sheet including the steps of continuously casting a steel slab haing a weight % composition within the range of 2.5-3.5 Si, 0.01-0.04 S, less than 0.07 C, less than 0.15 Mn, and an acid-soluble aluminum in an amount between 0.01 and 0.05, at a feed rate ranging from 700 to 1000 kg/minute, into an ingot mold of a length over 1200 mm and cooling it in said ingot mold with a quantity of water ranging from 2.8 to 4 m.sup.3 per ton of steel; heating the slab so obtained to 1300.degree.-1400.degree. C and immediately thereafter hot-rolling it to a thickness in the range between 2 and 3.1 mm, annealing the strip so obtained at a temperature in the range between 1050.degree. and 1150.degree. C, keeping it at this temperature for a duration between 5 and 30 seconds; cooling it at any desired cooling rate to 750.degree.-850.degree. C at a temperature at which austenite is still present in it; keeping the strip at this temperature for a duration ranging from 30 to 200 seconds; and finally quenching it from the initial quenching temperature of 400.degree. C at a cooling rate of between 10.degree. C/second and 100.degree. C/second; cold-rolling the strip so obtained with a reduction rate ranging from 80 to 90% and subjecting it finally to the decarburization and recrystallization annealing operations as well as to other final anneals.

    摘要翻译： 一种生产定向晶粒高磁导率钢板的方法，包括以2.5-3.5Si，0.01-0.04S，小于0.07C，小于0.15的范围内连续铸造重量％组成的钢坯的步骤 Mn和0.01〜0.05的酸溶性铝，以700〜1000kg /分钟的速度进料到长度超过1200mm的锭模中，并在所述铸锭模具中用一定量的 每吨钢水2.8〜4立方米; 将得到的板坯加热到1300〜-1400℃，然后将其热轧至2〜3.1mm的厚度，在1050℃〜1150℃的温度范围内退火， 在此温度下保持5至30秒; 在奥氏体还存在的温度下以任意所需的冷却速度将其冷却至750-850℃; 将条带在该温度下保持30至200秒的持续时间; 最终从初始淬火温度400℃以10℃/秒〜100℃/秒的冷却速度淬火; 将所得到的带材以80-90％的压缩率冷轧，最后进行脱碳和再结晶退火操作以及其他最终退火。

    Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained
    2.
    发明授权
    Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained 失效
    用于制造用于磁性应用的取向晶粒的硅铝钢板的方法以及由此获得的产品

    公开(公告)号：US3959033A

    公开(公告)日：1976-05-25

    申请号：US491152

    申请日：1974-07-23

    申请人： Mario Barisoni ,  Massimo Barteri ,  Pietro Brozzo ,  Edmondo Marianeschi ,  Roberto Ricci Bitti

    发明人： Mario Barisoni ,  Massimo Barteri ,  Pietro Brozzo ,  Edmondo Marianeschi ,  Roberto Ricci Bitti

    IPC分类号： H01F1/16 ,  C21D8/12 ,  H01F1/04

    CPC分类号： C21D8/1261 ,  C21D8/1233 ,  C21D8/1266 ,  C21D8/1272

    摘要： Low carbon silicon-aluminum single-oriented steel sheet having high magnetic induction is produced by hot rolling at 1370.degree.-1430.degree.C., annealing from 10 to 60 seconds at 1050 to 1170.degree.C., slow cooling to 700.degree.-900.degree.C., quenching from 700.degree.-900.degree.C., cold rolling with a reduction in thickness of 80 to 90%, recrystallization and decarburization annealing in wet hydrogen from 780.degree. to 870.degree.C. for 2 minutes, and final annealing at 1200.degree.C. in a mixture of 10-50% hydrogen and 50-90% nitrogen. Cold rolling can be effected in two stages, the first stage to reduce the thickness by 20 to 50% followed by annealing at 700.degree. to 900.degree.C., quenching and final cold rolling with a reduction in thickness of 80 to 90%. The preferred temperature range prior to quenching, for one-step cold rolling, is 750.degree. to 850.degree.C.; and for two-step cold rolling, the first quench is preferably from a temperature of 750.degree. to 850.degree. C. and the second quench preferably from a temperature of 850.degree. to 900.degree.C.

    摘要翻译： 具有高磁感应性的低碳硅铝单向钢板通过在1370〜-1430℃下热轧制造，在1050〜1170℃退火10〜60秒，缓慢冷却至700〜-900℃ C.从700℃-900℃淬火，冷轧厚度减少80-90％，在湿氢中从780℃至870℃进行再结晶和脱碳退火2分钟，最终退火1200℃ 在10-50％氢气和50-90％氮气的混合物中。 冷轧可以分两个阶段进行，第一阶段将厚度减少20-50％，然后在700-900℃退火，淬火和最终冷轧，厚度减少80-90％。 淬火前优选的温度范围为一步冷轧，为750〜850℃。 对于两步冷轧，首先骤冷优选为750〜850℃，第二骤冷优选为850〜900℃。

    Process for thermal treatment of steel strip
    5.
    发明授权
    Process for thermal treatment of steel strip 有权
    钢带热处理工艺

    公开(公告)号：US06679957B1

    公开(公告)日：2004-01-20

    申请号：US09787313

    申请日：2001-05-17

    申请人： Massimo Barteri ,  Sandro Fortunati ,  Gianni Songini

    发明人： Massimo Barteri ,  Sandro Fortunati ,  Gianni Songini

    IPC分类号： C21D800

    CPC分类号： C21D8/0263 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/1261 ,  C21D9/52

    摘要： In the thermal treatment of continuous-cast or hot-rolled steel strip, by using particular solutions regarding the choice of the strip rolling temperatures, the transfer times from the coiler to the furnace, as well as specific process steps in annealing, it is possible to treat any type of steel by sending the coils of strip, still at a high temperature, directly to the annealing furnace, at the same time maintaining the mechanical and microstructural characteristics obtainable in traditional cold-strip annealing.

    摘要翻译： 在连续铸造或热轧钢带的热处理中，通过使用关于选择轧制温度的特定方案，从卷取机到炉的转移时间以及退火中的具体工艺步骤，可能是可能的 通过将高温条带的线圈直接送到退火炉，同时保持传统的冷带退火中可获得的机械和微结构特性，来处理任何类型的钢。

    Austenitic stainless steel strips having good weldability as cast
    6.
    发明授权
    Austenitic stainless steel strips having good weldability as cast 失效
    奥氏体不锈钢带铸造具有良好的焊接性

    公开(公告)号：US06568462B1

    公开(公告)日：2003-05-27

    申请号：US09463764

    申请日：2000-04-20

    申请人： Massimo Barteri ,  Giorgio Porcu ,  Antonio Mascanzoni

    发明人： Massimo Barteri ,  Giorgio Porcu ,  Antonio Mascanzoni

    IPC分类号： B22D1106

    CPC分类号： C21D8/0205 ,  C21D6/004

    摘要： A process for the production of austenitic stainless steel strips having as case a good weldability, comprising the operations of: solidification in a mold of a continuous casting apparatus with twin counterrotatng rolls, a strip having a thickness comprised between 1 to 5 mm and having the following composition in percent by weight: Cr 17-20; Ni 6-11; c 6C-3S with proviso that Ti>6S, or NB+Ta>1C with the proviso that TI

    摘要翻译： 一种用于生产具有良好可焊性的奥氏体不锈钢带的方法，包括以下操作：在具有双反转辊的连续铸造设备的模具中固化，厚度为1-5mm的带材， 以下组成重量百分比：Cr 17-20; 倪6-11; c <0.04; n <0.04; s <0.01; Mn <1.5; Si <1.0; Mo 0-3; Al <0.03; 并且可能的是Ti，Nb，Ta，使得：Ti + 0.5（Nb + Ta）> 6C-3S，条件是Ti> 6S，或NB + Ta> 1C，条件是TI <6S; 在任何情况下Nb + Ti + Ta <1.0; 剩余部分基本上为Fe，其中δ-铁素体体积百分比为4-10％，用下式计算：δ-铁素体=（Creq / Nieq-0.728）×500/3其中：Creq / Nieq = [Cr + Mo + 1.5 Si +）0.5Nb + 0.25Ta + 2.5（Al + Ti）+18] / [Ni + 30（C + N）+ 0.5Mn + 36]; 并且可能在900至1200℃之间的温度下加热条带少于5分钟的时间。 本发明的主题还是用于制造焊接产品即焊接管的方法和使用获得的不锈钢带。