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1. 发明专利

JP2011226993A Method for detecting solidification structure of steel 有权
标题翻译：检测钢的固结结构的方法
公开(公告)号：JP2011226993A
公开(公告)日：2011-11-10
申请号：JP2010098985
申请日：2010-04-22
申请人： Astec Irie Co Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 株式会社アステック入江
发明人： SEZE AKIFUMI , TANI MASAHIRO , FUKUNAGA SHINICHI , UEMURA KENICHI , NISHIMOTO TAKUMI , SUEYOSHI SHOTA , SAKURA IKUO , TAKAMUNE KENJI
IPC分类号： G01N1/32 , G01N1/28 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting solidification structure of a type of steel which has relatively low differences in concentrations of solute elements due to segregation during solidification, particularly of a low-carbon steel which has a carbon concentration of 0.01 mass% or less.SOLUTION: After a cross section of a sample of steel cast slab is polished, the cross section of the sample is corroded to cause solidification structure of the steel to appear while applying supersonic waves of 30 kHz to 3 MHz to a corrosive liquid 15 in which microbubble-containing water is used as a solvent to subject the corrosive liquid 15 to water resonance. The sample is then washed and dried, and corroded holes formed in the cross section of the sample are filled with polishing powder. After transparent adhesive tape is stuck on the cross section of the sample to adhere the polishing powder in the corroded holes to the transparent adhesive tape, the transparent adhesive tape is removed and then stuck on a white mount.
摘要翻译：要解决的问题：提供一种用于检测固化期间由于偏析导致的固溶元素浓度差异较小的钢的固化结构的方法，特别是碳浓度低的低碳钢 0.01质量％以下。
解决方案：抛光钢板样品的横截面后，样品的横截面被腐蚀，导致钢的凝固结构出现，同时将30 kHz至3 MHz的超声波施加到腐蚀性液体 15，其中使用含微泡的水作为溶剂使腐蚀性液体15进行水共振。然后将样品洗涤并干燥，并在样品的横截面中形成的腐蚀孔填充有抛光粉末。将透明胶粘带粘贴在样品的横截面上，将腐蚀的孔中的抛光粉末粘附到透明胶带上，将透明胶带除去，然后粘贴在白色的底座上。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011226992A Method for detecting solidification structure of steel 有权
标题翻译：检测钢的固结结构的方法
公开(公告)号：JP2011226992A
公开(公告)日：2011-11-10
申请号：JP2010098982
申请日：2010-04-22
申请人： Astec Irie Co Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 株式会社アステック入江
发明人： SEZE AKIFUMI , TANI MASAHIRO , FUKUNAGA SHINICHI , UEMURA KENICHI , NISHIMOTO TAKUMI , SUEYOSHI SHOTA , SAKURA IKUO , TAKAMUNE KENJI
IPC分类号： G01N33/20 , B22D11/00
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting solidification structure of a type of steel which has relatively low differences in concentrations of solute elements due to segregation during solidification, particularly of a low-carbon steel which has a carbon concentration of 0.01 mass% or less.SOLUTION: After a cross section of a sample of steel cast slab is polished, the cross section of the sample is corroded in a corrosive liquid using microbubble-containing water as a solvent to cause solidification structure of the steel to appear. The sample is then washed and dried, and corroded holes formed in the cross section of the sample are filled with polishing powder. After transparent adhesive tape is stuck on the cross section of the sample to adhere the polishing powder in the corroded holes to the transparent adhesive tape, the transparent adhesive tape is removed and then stuck on a white mount.
摘要翻译：要解决的问题：提供一种用于检测固化期间由于偏析导致的固溶元素浓度差异较小的钢的固化结构的方法，特别是碳浓度低的低碳钢 0.01质量％以下。
解决方案：抛光钢板样品的横截面后，将样品的横截面用含微泡水作为溶剂在腐蚀性液体中腐蚀，导致钢的凝固结构出现。然后将样品洗涤并干燥，并在样品的横截面中形成的腐蚀孔填充有抛光粉末。将透明胶粘带粘贴在样品的横截面上，将腐蚀的孔中的抛光粉末粘附到透明胶带上，将透明胶带除去，然后粘贴在白色的底座上。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011225957A Device for detecting solidified structure of steel and method of detecting the same 有权
标题翻译：用于检测钢的固化结构的装置及其检测方法
公开(公告)号：JP2011225957A
公开(公告)日：2011-11-10
申请号：JP2010098988
申请日：2010-04-22
申请人： Astec Irie Co Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 株式会社アステック入江
发明人： SEZE AKIFUMI , TANI MASAHIRO , FUKUNAGA SHINICHI , KAMIMURA KENICHI , NISHIMOTO TAKUMI , SUEYOSHI SHOTA , SAKURA IKUO , TAKAMUNE KENJI
IPC分类号： C23F1/08
摘要： PROBLEM TO BE SOLVED: To provide a device for detecting a solidified structure of steel of the kind relatively small in concentration difference by segregation of solidifying solute elements, particularly of low-carbon steel of not more than 0.01 mass% in carbon concentration, and a method of detecting the same.SOLUTION: The device for detecting the solidified structure of steel in which after polishing a sample section of a steel cast slab, the sample section is corroded includes an outer tank 2 containing water 7 containing micro-bubbles, ultrasonic oscillators 5, 6 resonating the water by application of ultrasonic waves of 30 kHz-3 MHz to the water 7, and an inner tank 3 immersed in the outer tank 2 and containing a corrosive liquid 8 corroding the sample section. The sample section is corroded by using the solidified structure detecting device 1 to make the solidified structure of the steel appear.
摘要翻译：要解决的问题：提供一种用于通过凝固溶质元素特别是碳浓度不大于0.01质量％的低碳钢的偏析来检测浓度差相对较小的钢的凝固组织的装置，及其检测方法。解决方案：用于检测钢的凝固组织的装置，其中在对钢铸坯的样品进行抛光后，样品部分被腐蚀包括含有微气泡的水7的外槽2，超声波振荡器5,6 通过施加30kHz-3MHz的超声波将水谐振到水7，以及浸没在外罐2中并含有腐蚀了样品部分的腐蚀性液体8的内罐3。通过使用凝固结构检测装置1使样品部分腐蚀，使钢的凝固结构出现。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012247382A Detection method of solidification structure for steel 有权
标题翻译：钢的固结结构检测方法
公开(公告)号：JP2012247382A
公开(公告)日：2012-12-13
申请号：JP2011121307
申请日：2011-05-31
申请人： Nippon Steel & Sumitomo Metal , 新日鐵住金株式会社 , Astec Irie Co Ltd , 株式会社アステック入江
发明人： SEZE AKIFUMI , TANI MASAHIRO , FUKUNAGA SHINICHI , KAMIMURA KENICHI , NISHIMOTO TAKUMI , SUEYOSHI SHOTA , SAKURA IKUO , TAKAMUNE KENJI
IPC分类号： G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a detection method of solidification structure for a steel type of which the concentration difference caused by segregation of a solute element being solidified is comparatively small, in particular, for low-carbon steel of which the carbon concentration is lower than or equal to 0.01 mass%.SOLUTION: A sample cross section of a steel cast piece is polished. Thereafter ultrasonic waves of two or more kinds of frequencies different from each other are alternately and intermittently applied, within a range of 30 kHz to 3 MHz, to a corrosion liquid 15 using water containing micro bubbles as a solvent. While water-resonating the corrosion liquid 15, the sample cross section is corroded and a solidification structure of steel appears. Thereafter, the steel cast piece is washed and dried, a corrosion pit formed on the sample cross section is filled with polishing powder, and a transparent adhesive tape is stuck to the sample cross section. After the polishing powder in the corrosion pit is adhered to the transparent adhesive tape, the transparent adhesive tape is released and next, the transparent adhesive tape is stuck on a white pasteboard.
摘要翻译：要解决的问题：提供一种由固化的固体元素的偏析引起的浓度差较小的钢型凝固组织的检测方法，特别是对于碳浓度低于或等于0.01质量％。
解决方案：抛光钢铸件的样品横截面。此后，使用含有微气泡作为溶剂的水，在30kHz〜3MHz的范围内交替地和间歇地施加两种以上彼此不同的频率的超声波。当腐蚀液体15产生水谐振时，样品横截面被腐蚀并出现钢的凝固结构。然后，对钢铸件进行清洗干燥，在样品横截面上形成的腐蚀坑填充有研磨粉末，将透明胶带粘贴在试样截面上。在腐蚀坑中的抛光粉末粘附到透明胶带上之后，透明胶带被释放，接下来将透明胶带粘贴在白色粘贴板上。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2011001631A Method for producing hot dip galvannealed steel sheet excellent in surface property 有权
标题翻译：生产表面性能优良的热镀锌钢板的方法
公开(公告)号：JP2011001631A
公开(公告)日：2011-01-06
申请号：JP2010112392
申请日：2010-05-14
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SATO HIROTETSU , KAMIMURA KENICHI , NISHIMOTO TAKUMI , MAKI JUN
IPC分类号： C23C2/02 , C21D9/46 , C22C38/00 , C22C38/16 , C23C2/06 , C23C2/28 , C23G1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a hot dip galvannealed steel sheet for press working which is excellent in surface appearance less in the variation of plating thickness and exhibiting a fine surface appearance even after press working.SOLUTION: The method includes: a stage of obtaining a slab having a componential composition containing 0.0005 to 0.01% C, ≤1.0% Si, 0.01 to 1.5% Mn, 0.005 to 0.08% P, ≤0.02% S, 0.01 to 0.10% Al, ≤0.1% Ni and ≤0.1% Cu, and the balance Fe with inevitable impurities; a stage of performing hot rolling so as to obtain a hot rolled coil; a stage of feeding microbubbles having the average bubble diameter of 0.01 to 100 μm and further pickling the surface of the steel sheet in a state where ultrasonic waves of 10 kHz to 3 MHz are applied thereto; a stage of subjecting the steel sheet to cold rolling at a cold rolling ratio of 50 to 95% so as to be a cold rolled coil with a prescribed thickness; and a stage of annealing the coil at a temperature above a recrystallization temperature and thereafter applying hot dip plating to the surface of the coil.
摘要翻译：要解决的问题：提供一种制造用于冲压加工的热浸镀锌合金化热镀锌钢板的方法，即使在冲压加工之后，镀层厚度变化较小，表面外观也很好，因此该方法包括：得到具有0.0005〜0.01％C，≤1.0％Si，0.01〜1.5％Mn，0.005〜0.08％P，≤0.02％S，0.01〜0.10％Al，≤0.1％Ni的组成成分的板坯的阶段， ≤0.1％Cu，余量为Fe与不可避免的杂质; 进行热轧以获得热轧卷材的阶段; 在10〜3MHz的超声波被施加的状态下，平均气泡直径为0.01〜100μm的微泡进料阶段进一步酸洗，将钢板以50〜95％的冷轧比进行冷轧，以成为规定厚度的冷轧钢卷的阶段; 以及在高于再结晶温度的温度下退火线圈的阶段，然后对线圈的表面进行热浸镀。

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