-
Patent Agency Ranking
公开(公告)号：JP2009263711A
公开(公告)日：2009-11-12
申请号：JP2008113783
申请日：2008-04-24
Applicant: Jfe Steel Corp , Jfeスチール株式会社
Inventor： KENMOCHI KAZUHITO , OKABE YOSHITOMO , YOKOYAMA HIROYASU , SUZUKI MASAHITO , SAKASHITA SHIGETO
CPC classification number: Y02P10/253
Abstract: PROBLEM TO BE SOLVED: To solve the problems of the conventional technique that the equipment length of a heat treatment apparatus increases, and an enormous running cost is necessitated, resulting in nonefficient electro-resistance welded tube manufacture. SOLUTION: The heat treatment apparatus for subjecting a welding area of the electro-resistance welded tube constituted by welding unwelded seam part 21 of an open tube 20 by an electro-resistance welding equipment 1 to heat treatment on an outlet side of an electro-resistance welding equipment, is provided with an external surface side induction heating means 2 having a plurality of induction heating stands 13 arranged on an external surface side of the tube in a material passage direction, and an internal surface side induction heating means 3 having a plurality of magnetic flux generation units 4 held with bars 6 on an internal surface side of the tube and arranged in a material passage direction. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题为了解决热处理设备的设备长度增加的传统技术的问题，并且需要巨大的运行成本，导致电阻焊管制造无效。 解决方案：一种热处理设备，用于通过电阻焊接设备1对开管20的焊接未焊接接缝部分21构成的电阻焊管的焊接区域进行热处理， 电阻焊接设备设置有外表面侧感应加热装置2，该外表面侧感应加热装置2具有沿材料通过方向布置在管的外表面侧上的多个感应加热台13和内表面侧感应加热装置3， 多个磁通产生单元4，其在管的内表面侧上保持有杆6，并沿材料通过方向布置。 版权所有（C）2010，JPO＆INPIT
-
公开(公告)号：JP2019090471A
公开(公告)日：2019-06-13
申请号：JP2017219316
申请日：2017-11-14
Applicant: JFE STEEL CORP
Inventor： MIYATA SHIRO , SAKASHITA SHIGETO , NISHINO KATSUHIKO , OTSUKI HIROSHI
Abstract: 【課題】作業性と強度を兼ね備えた、建築設備用配管として用いられる炭素鋼鋼管を提供する。【解決手段】外径D(mm)および肉厚t(mm)から下記(1)式により求められるαの値が0.53以上0.75以下である、建築設備用配管として用いられる炭素鋼鋼管。α=t/D0.3535…(1)【選択図】なし
-
公开(公告)号：JP2014065053A
公开(公告)日：2014-04-17
申请号：JP2012211602
申请日：2012-09-26
Applicant: Jfe Steel Corp , Jfeスチール株式会社
Inventor： SATO SHUICHI , SAKASHITA SHIGETO , TSUBOUCHI SUSUMU
IPC: B21C37/08
Abstract: PROBLEM TO BE SOLVED: To provide a heat treatment method of an electric resistance welded pipe for performing heat treatment after a welded part determined by using a temperature distribution in the vicinity of the welded part, when performing the heat treatment of the welded part of the electric resistance welded pipe.SOLUTION: In an electric resistance welded tube production line disposed of a heat treatment apparatus with a plurality of inductors in a downstream side of a bead trimmer, the heat treatment of a welded part after bead cutting is performed by the heat treatment apparatus. In that case, the position of the welded part in a steel pipe exterior surface is determined, based on temperature distribution of the steel pipe exterior surface in the vicinity of the welded part after the bead cutting and after the heat treatment. Then the inductors of the heat treatment apparatus are controlled so as to follow after the welded part.
Abstract translation: 要解决的问题：为了提供一种用于在通过使用焊接部附近的温度分布确定的焊接部分之后进行热处理的电阻焊管的热处理方法，当对焊接部分的焊接部分进行热处理时， 电阻焊管。解决方案：在一个电焊焊管生产线上，在一个珠修边机的下游侧设置一个具有多个电感器的热处理设备，焊接后的焊接部分的热处理是通过热 治疗仪器。 在这种情况下，焊接部位在钢管外表面中的位置是基于钢珠外表面在焊道切割后和热处理后附近的温度分布来确定的。 然后，控制热处理装置的电感器，使其跟随在焊接部件之后。
-
34.发明专利
公开(公告)号：JP2013139051A
公开(公告)日：2013-07-18
申请号：JP2012262491
申请日：2012-11-30
Applicant: Jfe Steel Corp , Jfeスチール株式会社
Inventor： URAHATA EIICHI , SUZUKI MASAHITO , SAKASHITA SHIGETO
Abstract: PROBLEM TO BE SOLVED: To provide a method for stably mass-producing electric resistance welded steel tubes superior in low temperature toughness.SOLUTION: The method for manufacturing the electric resistance welded tube includes forming a steel band, which contains 0.03-0.15% of C, 0.5% or less of Si, and 0.5-2.0% of Mn, in mass%, and further contains one or more selected from 0.1% or less of Nb, 0.1% or less of Ti and 0.1% or less of V, into a substantially tube-like open-tube, then butting and welding both edges of the open-tube. In the method, after giving tapers on both an outer surface side and an inner surface side of both the edges of the open-tube, electric-resistance welding is performed in an upset amount of 40-75% of steel band thickness. Thereafter, the welded outer surface after electric resistance welding is heated up to 960-1,250°C and cooled at a cooling rate of 10-50°C/sec from a temperature of 880°C or higher to 200-450°C, and then reheated to 500-780°C to be tempered as a series of heat treatment.
Abstract translation: 要解决的问题：提供一种稳定批量生产低温韧性优异的电阻焊钢管的方法。解决方案：电阻焊管的制造方法包括：形成钢带，其含有0.03-0.15％的C ，0.5％以下的Si和0.5〜2.0％的Mn，以质量％计，还含有选自0.1％以下的Nb，0.1％以下的Ti和0.1％以下的V中的一种以上， 一个基本上管状的开放管，然后对接和焊接开放管的两个边缘。 在该方法中，在开口管的两个边缘的外表面侧和内表面侧均匀化之后，以钢带厚度的40-75％的镦粗量进行电阻焊接。 此后，将电阻焊后的焊接后的外表面加热到960-1,250℃，以10〜50℃/秒的冷却速度从880℃以上的温度冷却至200-450℃， 然后再加热至500-780°C进行一系列热处理。
-
35.发明专利
公开(公告)号：JP2009285706A
公开(公告)日：2009-12-10
申请号：JP2008142606
申请日：2008-05-30
Applicant: Jfe Steel Corp , Jfeスチール株式会社
Inventor： YOKOYAMA HIROYASU , KENMOCHI KAZUHITO , SAKATA TAKASHI , SAKASHITA SHIGETO , SUZUKI MASAHITO
Abstract: PROBLEM TO BE SOLVED: To solve a problem of not sufficiently improving buckling resistance property of an electric resistance welded tube by conventional technology.
SOLUTION: In the manufacturing method of the electric resistance welded tube, a steel strip is roll formed while it is being passed, both abutted ends of the strip in a width direction are electric-resistance-welded to form a tube 10, heat treatment is applied to an electric resistance welded area, and then the tube is straightened. When straightening the tube, a rotary straightening machine 8 is used wherein the interval of the roll groove bottoms of at least one set of upper and lower rolls of the rotary straightening machine is made to be less than a tube outer diameter.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 解决的问题：通过现有技术来解决不能充分提高电阻焊接管的耐压特性的问题。 解决方案：在电阻焊管的制造方法中，钢带在通过时被轧制成形，并且宽度方向上的条带的邻接端被电阻焊以形成管10， 对电阻焊区域进行热处理，然后使管被拉直。 当矫直管时，使用旋转矫直机8，其中使旋转矫直机的至少一组上下辊的辊槽底部的间隔小于管外径。 版权所有（C）2010，JPO＆INPIT
-
-
-
-
Search Results
35
records
(took 0.026 seconds)
