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    • 2. 发明授权
    • Process for the production of grain oriented magnetic steel sheets
having improved remagnetization losses
    • 制造具有改善的再磁化损失的晶粒取向磁性钢板的方法
    • US5711825A
    • 1998-01-27
    • US222627
    • 1994-04-04
    • Fritz BollingAndres BottcherManfred EspenhahnChristof Holzapfel
    • Fritz BollingAndres BottcherManfred EspenhahnChristof Holzapfel
    • B21B1/26C21D1/78C21D3/04C21D8/12C21D9/46C22C38/00C22C38/02C22C38/16H01F1/16
    • C22C38/02C21D8/1205C21D8/1222C21D8/1261C21D3/04C21D8/1233
    • A process for the production of grain oriented magnetic steel sheets comprises through-heating slabs containing more than 0.005% C, 2.5 to 6.5% Si, 0.03 to 0.15% Mn, 0.010 to 0.050% S, 0.010 to 0.035% Al, 0.0045 to 0.0120% N, and 0.020 to 0.300% Cu, the balance being iron and residual impurities, to a temperature which is lower than the solubility temperature T.sub.1 of magnesium sulfide and higher than the solubility temperature T.sub.2 of copper sulfide, T.sub.1 and T.sub.2 being dependent on the silicon content. The through-heated slabs are then hot roughed, followed by hot finish rolling at an initial temperature of at least 960.degree. C. and a final rolling temperature of 880.degree. C. to 1,000.degree. C., to produce a hot rolled strip having a thickness in the range of 1.5 to 7 mm. During this last step, at least 60% of the total nitrogen content precipitates in the form of coarse AlN particles. Thereafter, the hot rolled strips are annealed at temperature of 880.degree. C. to 1,150.degree. C., followed by cooling at a cooling rate higher than 15 .degree. K./sec to induce further precipitation of AlN and copper sulfide particles. Thereafter the strip is cold rolled in one or more cold rolling stages to a final strip thickness of 0.1 mm to 0.5 mm, subjected to recrystallization and decarburization annealing in a wet atmosphere containing H.sub.2 and N.sub.2. A separating agent containing mainly MgO is then applied to both surfaces of the strip. The strip is then high temperature annealed, an insulating coating is applied and the strip is subjected to a final annealing.
    • 晶粒取向电磁钢板的制造方法包括通过加热板坯,其含有超过0.005%的C,2.5〜6.5%的Si,0.03〜0.15%的Mn,0.010〜0.050%的S,0.010〜0.035%的Al,0.0045〜0.0120 %N,0.020〜0.300%的Cu,余量为铁和残留杂质,至低于硫化镁的溶解温度T1的温度,高于硫化铜的溶解度温度T2,T1和T2取决于 硅含量。 然后将通过热轧的板坯进行热轧,然后在初始温度为至少960℃,最终轧制温度为880℃至1000℃下进行热精轧,以生产具有 厚度在1.5至7毫米的范围内。 在最后一步中,总氮含量的至少60%以粗AlN颗粒的形式沉淀。 此后,将热轧带材在880℃至1150℃的温度下退火,然后以高于15℃/秒的冷却速率冷却,以引起AlN和硫化铜颗粒的进一步沉淀。 此后,将带材在一个或多个冷轧阶段中冷轧至最终带材厚度为0.1mm至0.5mm,在含有H 2和N 2的湿气氛中进行重结晶和脱碳退火。 然后将主要含有MgO的分离剂施加到条的两个表面。 然后将带材进行高温退火,施加绝缘涂层,并对带材进行最终退火。
    • 3. 发明授权
    • Process for producing a grain-orientated electrical steel sheet
    • 晶粒取向电工钢板的制造方法
    • US6153019A
    • 2000-11-28
    • US171709
    • 1998-10-26
    • Manfred EspenhahnAndreas BottcherKlaus Gunther
    • Manfred EspenhahnAndreas BottcherKlaus Gunther
    • C21D9/46B21B1/46C21D1/76C21D8/12C21D9/56C21D9/573C22C38/00C22C38/02C22C38/16H01F1/18
    • C21D8/1272C21D1/76C21D8/1222C21D8/1233C21D8/1261
    • A process for producing a grain-oriented magnetic steel sheet in which a slab, made from a steel containing (in mass %) more than 0.005 to 0.10% C, 2.5 to 4.5% Si, 0.03 to 0.15% Mn, more than 0.01 to 0.05% S, 0.01 to 0.035% Al, 0.0045 to 0.012% N, 0.02 to 0.3% Cu, the remainder being Fe, including unavoidable impurities, is heated through and hot rolled to a final thickness between 1.5 and 7.0 mm. The hot strip is annealed and immediately cooled and cold rolled in one or several cold-rolling steps to the final thickness of the cold strip. The cold strip is subjected to a recrystallizing annealing process in a humid atmosphere containing hydrogen and nitrogen, with synchronous decarburization. A non-stick layer, essentially containing MgO, is applied to the surface of the decarburized cold strip which is then subjected to final annealing. The cold strip is then rolled into coils.
    • PCT No.PCT / EP97 / 03510 Sec。 371日期:1998年10月26日 102(e)1998年10月26日PCT PCT 1997年7月3日PCT公布。 第WO98 / 02591号公报 日本1998年1月22日一种用于制造由含有(质量%)大于0.005至0.10%C,2.5至4.5%Si,0.03至0.15%Mn的钢制成的钢板的方法 ,大于0.01至0.05%的S,0.01至0.035%的Al,0.0045至0.012%的N,0.02至0.3%的Cu,余量为Fe,包括不可避免的杂质,被加热并热轧至1.5至7.0的最终厚度 mm。 将热带退火并立即冷却并在一个或多个冷轧步骤中冷轧至冷轧带的最终厚度。 在含有氢和氮的潮湿气氛中进行再结晶退火处理,同时进行脱碳。 将基本上含有MgO的不粘层施加到脱碳冷带的表面上,然后进行最终退火。 然后将冷条卷成线圈。
    • 4. 发明授权
    • Hot-rolling steel strip
    • 热轧钢带
    • US06284069B1
    • 2001-09-04
    • US09381892
    • 1999-12-28
    • Hans PircherManfred EspenhahnRudolf KawallaWaldemar Wolpert
    • Hans PircherManfred EspenhahnRudolf KawallaWaldemar Wolpert
    • C21D802
    • B21B1/26B21B1/46B21B2201/02B21B2201/04B21B2201/16C21D8/0226C21D8/0231
    • The invention relates to a process for producing strips of homogenous structures and characteristics made of non-alloyed and low-alloyed steel by continuous hot rolling in several roll passes in the austenitic region and subsequently in the ferritic region, as well as coiling. The invention is characterised in that continuous-cast strip and/or strip rough rolled in the austenitic region, starting with a temperature T≧Ar3+30° C., with a total degree of deformation of eh≧30% is rolled in two or several roll passes in the austenitic region and in that the rolling stock is intensively cooled after every roll pass until the ferritic transformation has been completed, after which the rolling stock is end rolled to final thickness in the ferritic range in several passes with a total degree of deformation eh≧60%.
    • 本发明涉及一种通过在奥氏体区域中随后在铁素体区域中的多次辊道中的连续热轧以及卷绕来制造由非合金和低合金钢制成的均匀结构和特性的条带的方法。 本发明的特征在于,在温度T> = Ar 3 + 30℃,总变形度为> 30%的奥氏体区域粗轧的连续铸造带材和/或带材被轧制 在奥氏体区域中的两个或几个辊道,并且在每次轧制之后,将车辆集中冷却直到铁素体相变已经完成,然后在多次通过中将车辆端部轧制成铁素体范围的最终厚度, 总变形度eh> = 60%。
    • 6. 发明授权
    • Electroplating apparatus
    • 电镀设备
    • US4347115A
    • 1982-08-31
    • US259721
    • 1981-05-01
    • Manfred EspenhahnManfred Folwaczny
    • Manfred EspenhahnManfred Folwaczny
    • C25D7/06C25D21/12C25D17/00C25D17/10
    • C25D7/0614C25D7/0642
    • An apparatus is disclosed for the electroplating of metal strips, and more particularly for the zinc-coating of steel strip, which comprises a tank filled with electrolyte liquid and immersed therein, at least one anode which is disposed above a strip to be electrolytically coated and at least one anode disposed below said strip, both of said anodes being parallel to said strip. The anode disposed above the strip is electrolytically consumable and made of an electrolytically depositable metal for deposition on said strip and the anode disposed below the strip consists essentially of a material that is insoluble in the electrolyte and not electrolytically consumable. Each anode is connected to a source of current, the anode disposed below said strip being provided with means for disconnecting it from said source of current.
    • 公开了一种用于金属条的电镀的装置,更具体地说,涉及一种钢带的锌镀层,其包括填充有电解质液体并浸没在其中的容器,至少一个阳极设置在待电解涂层的条上, 设置在所述条带下方的至少一个阳极,两个所述阳极平行于所述条带。 设置在条带上方的阳极是电解消耗的,并且由用于沉积在所述条上的电解沉积金属制成,并且位于条带下方的阳极基本上由不溶于电解质的材料组成并且不是电解消耗的材料。 每个阳极连接到电流源,设置在所述带下方的阳极设置有用于将其与所述电流源断开的装置。