公开(公告)号：US4026729A

公开(公告)日：1977-05-31

申请号：US632570

申请日：1975-11-17

申请人： Kazuhide Nakaoka ,  Kenji Araki ,  Takayoshi Shimomura ,  Haruo Kubotera ,  Shinobu Osaka ,  Nobuo Tanaka ,  Hiroshi Kuroda ,  Takao Kurihara

发明人： Kazuhide Nakaoka ,  Kenji Araki ,  Takayoshi Shimomura ,  Haruo Kubotera ,  Shinobu Osaka ,  Nobuo Tanaka ,  Hiroshi Kuroda ,  Takao Kurihara

IPC分类号： B21B45/02 ,  C21D1/00 ,  C21D1/02 ,  C21D8/04 ,  C21D9/46 ,  C21D9/48 ,  C21D9/52 ,  C21D9/573 ,  C21D9/68 ,  C21D7/14

CPC分类号： C21D8/0426 ,  C21D9/52 ,  C21D9/68

摘要： In a process of making a cold-reduced steel strip for press-forming by a continuous annealing process comprising a rapid cooling step after recrystallization heating and an over-aging treatment step, when no spray of cooling water at the runout table before coiling in the hot-rolling stage is carried out on the top side and the bottom side of a travelling hot-rolled steel strip by about 20 to 200m respectively, a cold reduced soft steel sheet for press-forming is easily obtained by the above continuous annealing process.

摘要翻译： 在通过包括重结晶加热后的快速冷却步骤和过时效处理步骤的连续退火工艺制造冷轧钢带的方法中，当在卷取之前没有在回转台处喷射冷却水 在行进的热轧钢带的上侧和下侧分别进行约20〜200μm的热轧阶段，通过上述的连续退火处理容易得到用于压制成形的冷轧软钢板。

公开(公告)号：US4323403A

公开(公告)日：1982-04-06

申请号：US60028

申请日：1979-07-23

申请人： Kazuhide Nakaoka ,  Kenzi Araki ,  Kozi Iwase ,  Haruo Kubotera ,  Takao Kurihara ,  Nobuo Tanaka

发明人： Kazuhide Nakaoka ,  Kenzi Araki ,  Kozi Iwase ,  Haruo Kubotera ,  Takao Kurihara ,  Nobuo Tanaka

IPC分类号： C21D9/46 ,  C21D8/04 ,  C21D9/52 ,  C21D6/00

CPC分类号： C21D8/0473 ,  C21D9/52

摘要： In a continuous annealing process for a cold reduced steel strip substantially including a rapid cooling stage and a carbon precipitation treating stage into said process, the rapid cooling rate which is obtained by initial heating to above the recrystallization temperature and then slowly cooled for about 100 seconds to be above 200.degree. C./sec; and the starting temperature is controlled to be between 500.degree. C. and lower than 600.degree. C., thereby to obtain good press-formability of the continuously annealed steel strip.

摘要翻译： 在基本上包括快速冷却阶段和碳沉淀处理阶段的冷轧钢带的连续退火工艺中，通过初始加热到再结晶温度以上然后缓慢冷却约100秒获得的快速冷却速度 高于200℃/秒; 并将起始温度控制在500℃至低于600℃，从而获得连续退火的钢带的良好的冲压成形性。

公开(公告)号：US4113517A

公开(公告)日：1978-09-12

申请号：US713793

申请日：1976-08-12

申请人： Kazuhide Nakaoka ,  Kenzi Araki ,  Akihiko Nishimoto ,  Kozi Iwase ,  Haruo Kubotera

发明人： Kazuhide Nakaoka ,  Kenzi Araki ,  Akihiko Nishimoto ,  Kozi Iwase ,  Haruo Kubotera

IPC分类号： C21D1/26 ,  C21D8/02 ,  C21D8/04 ,  C22C38/00 ,  C22C38/06 ,  C21D9/48

CPC分类号： C22C38/06 ,  C21D1/26 ,  C21D8/0273 ,  C21D8/041 ,  C22C38/001 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0426

摘要： When an Al-killed steel consisting of, specially, 0.005% .ltoreq. [N] .ltoreq. 0.007%; 10 .times. [N] .ltoreq. Sol.Al. .ltoreq. 0.12%; and the ratio Sol.Al.%/[N]% controlled within the range of 10 to 20, is continuously cast, hot rolled, coiled at a high temperature, cold reduced and finally continuously annealed under special requirements, the steel strip is not at all inferior to the commercial base strip in mechanical properties and is made under high productivity and exhibits excellent uniformity in qualities.