JP2019122971A - Mold for continuous casting - Google Patents

Mold for continuous casting Download PDF

Info

Publication number
JP2019122971A
JP2019122971A JP2018003691A JP2018003691A JP2019122971A JP 2019122971 A JP2019122971 A JP 2019122971A JP 2018003691 A JP2018003691 A JP 2018003691A JP 2018003691 A JP2018003691 A JP 2018003691A JP 2019122971 A JP2019122971 A JP 2019122971A
Authority
JP
Japan
Prior art keywords
pair
long side
side members
continuous casting
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2018003691A
Other languages
Japanese (ja)
Other versions
JP7072388B2 (en
Inventor
和磨 太田
Kazuma Ota
和磨 太田
健 関
Takeshi Seki
健 関
将也 田窪
Masaya Takubo
将也 田窪
正信 葉山
Masanobu Hayama
正信 葉山
修至 脇田
Nagayoshi Wakita
修至 脇田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Nippon Steel Engineering Co Ltd
Nippon Steel Plant Designing Corp
Original Assignee
Nippon Steel Corp
NS Plant Designing Corp
Nippon Steel Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, NS Plant Designing Corp, Nippon Steel Engineering Co Ltd filed Critical Nippon Steel Corp
Priority to JP2018003691A priority Critical patent/JP7072388B2/en
Publication of JP2019122971A publication Critical patent/JP2019122971A/en
Application granted granted Critical
Publication of JP7072388B2 publication Critical patent/JP7072388B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Continuous Casting (AREA)

Abstract

To provide a mold for continuous casting where, even in the case the intervals of a pair of long side members is regulated, short side members are exchanged, and the thickness of a slab to be produced is changed, electromagnetic force by an electromagnetic brake apparatus can be efficiently acted on a molten steel, and the entrainment prevention effect of nonmetallic inclusions and bubbles to the inside the slab caused by the electromagnetic apparatus can be sufficiently achieved.SOLUTION: Provided is a mold for continuous casting comprising: a pair of long side members 51a, 51b; a pair of short side members held by the pair of long side members 51a, 51b; an electromagnetic brake apparatus 60; and a long side member interval regulation means regulating the intervals between the pair of long side members 51a, 51b. the electromagnetic brake apparatus 60 includes: a pair of cores 61a, 61b oppositely arranged together with the pair of long side members 51a, 51b; and a pair of coils 62a, 62b respectively round around the cores 61a, 61b, and includes a coil interval regulation means 67 regulating the intervals between the oppositely arranged pair of coils 62a, 62b.SELECTED DRAWING: Figure 2

Description

本発明は、互いに対向する一対の長辺部材と、これら一対の長辺部材に挟持されるとともに互いに対向する一対の短辺部材と、電磁ブレーキ装置と、一対の前記長辺部材の間の間隔を調整する長辺部材間隔調整手段と、を有する連続鋳造用鋳型に関するものである。   According to the present invention, a distance between a pair of long side members facing each other, a pair of short side members held by the pair of long side members and facing each other, an electromagnetic brake device, and a pair of the long side members And a long side member distance adjusting means for adjusting

断面矩形の鋳片を製造する連続鋳造装置においては、一対の長辺部材と一対の短辺部材とを備えた連続鋳造用鋳型を用いて、この連続鋳造用鋳型の鋳造空間内に浸漬ノズルを用いて溶鋼を供給し、鋳型内で溶鋼を冷却して凝固シェルを成長させ、鋳片を連続的に鋳造する構成とされている。
鋳型内における鋼鋳片への非金属介在物の持ち込みを防止するため、鋳造空間内に供給される溶鋼に対してアルゴンガス等の不活性ガスを吹き込んでいる。
また、鋳造空間内の溶鋼の上には、溶鋼の保温及び凝固シェルと長辺部材及び短辺部材との間の潤滑性を確保するために、鋳造パウダーが供給される。 In a continuous casting apparatus for producing a slab having a rectangular cross section, an immersion nozzle is formed in a casting space of the continuous casting mold using a continuous casting mold having a pair of long side members and a pair of short side members. The molten steel is supplied using the mold, the molten steel is cooled in the mold to grow a solidified shell, and the slab is continuously cast.
In order to prevent the introduction of non-metallic inclusions into the steel slab in the mold, an inert gas such as argon gas is blown into the molten steel supplied into the casting space.
Also, on the molten steel in the casting space, casting powder is supplied in order to maintain the molten steel and ensure the lubricity between the solidified shell and the long side members and the short side members.

このとき、吹き込まれるアルゴンガスの気泡、鋳造パウダー及び介在物等が、浸漬ノズルからの吐出流によって鋳造空間内の下方位置にまで混入することがある。この場合、凝固シェルが十分に成長した位置で、これら気泡、鋳造パウダー及び介在物等が捕捉されるため、鋳片の内部欠陥の一因となる。
この鋳片内部での巻き込みを防止する手段として、例えば、特許文献１〜３に示すように、鋳型の下方側に電磁ブレーキ装置を配設し、溶鋼の流れを制御する方法が提案されている。 At this time, bubbles of argon gas, cast powder, inclusions and the like to be blown may be mixed to the lower position in the casting space by the discharge flow from the immersion nozzle. In this case, these bubbles, cast powder, inclusions, and the like are captured at a position where the solidified shell has sufficiently grown, which contributes to internal defects of the slab.
For example, as shown in Patent Literatures 1 to 3, as a means for preventing the entrainment inside the cast slab, a method is proposed in which an electromagnetic brake device is disposed below the mold to control the flow of molten steel. .

上述の電磁ブレーキ装置は、一対の長辺部材とともに互いに対向するように配置された一対のコアと、これらのコアの外周側にそれぞれ捲回された一対のコイルと、を備えている。
電磁ブレーキ装置を用いた場合には、浸漬ノズルから吐出された鋳造空間内の下方側へ向かう溶鋼の流速を抑制することができ、気泡、鋳造パウダー及び介在物等が鋳型の下方側へと混入することを抑制し、鋳片の内部への非金属介在物及び気泡の巻き込みを低減することが可能となる。 The above-described electromagnetic brake device includes a pair of long side members and a pair of cores disposed to face each other, and a pair of coils wound around the outer periphery of the cores.
When the electromagnetic brake device is used, the flow velocity of the molten steel directed downward in the casting space discharged from the immersion nozzle can be suppressed, and air bubbles, casting powder, inclusions, etc. are mixed to the lower side of the mold. It is possible to reduce the inclusion of non-metallic inclusions and bubbles into the interior of the cast slab.

ところで、上述の連続鋳造用鋳型においては、例えば特許文献３に示すように、連続鋳造装置に連続鋳造用鋳型を取り付けた状態で（オンラインで）、鋳造する鋳片の厚さを変更するために、一対の長辺部材の一方を移動可能な構成とし、一対の長辺部材の間隔を広げて、短辺部材を交換可能としたものが提案されている。
そして、この特許文献３においては、一方の長辺部材を移動させて短辺部材を交換する際の作業スペースを確保するために、電磁ブレーキ装置の一対のコアの一方を移動させて、長辺部材とコアとの距離を調整する駆動部を設けている。 By the way, in the mold for continuous casting described above, for example, as shown in Patent Document 3, in order to change the thickness of a slab to be cast in a state where the mold for continuous casting is attached to a continuous casting apparatus (online) A configuration has been proposed in which one of the pair of long side members is movable and the distance between the pair of long side members is increased to make the short side members replaceable.
And in this patent document 3, in order to ensure the work space at the time of moving one long side member and replacing a short side member, one of a pair of cores of an electromagnetic brake device is moved, and a long side is moved. The drive part which adjusts the distance of a member and a core is provided.

実開昭６２−０６７６４９号公報Japanese Utility Model Application Publication No. 62-67649 特表２００５−５２０６９０号公報Japanese Patent Application Publication No. 2005-520690 特開２００９−２１４１４３号公報JP, 2009-214143, A

ところで、上述の電磁ブレーキ装置においては、鋳造空間内の溶鋼に対して電磁力を十分に作用させる必要がある。ここで、短辺部材を交換して鋳片の厚みを変更した場合には、電磁ブレーキ装置のコア及びコイルと、鋳造空間内の溶鋼との相対距離が変化してしまい、鋳造空間内の溶鋼に対して効率良く電磁力を作用させることができず、電磁ブレーキ装置による鋳片の内部への非金属介在物及び気泡の巻き込み防止効果が低減してしまうおそれがあった。   By the way, in the above-mentioned electromagnetic brake device, it is necessary to make an electromagnetic force act enough to molten steel in casting space. Here, when the short side members are replaced to change the thickness of the slab, the relative distance between the core and coil of the electromagnetic brake device and the molten steel in the casting space changes, and the molten steel in the casting space On the other hand, there is a possibility that the effect of preventing the non-metallic inclusions and air bubbles from getting into the interior of the cast slab by the electromagnetic brake device may be reduced.

本発明は、前述した状況に鑑みてなされたものであって、一対の長辺部材の間隔を調整して短辺部材を交換し、製造する鋳片の厚みを変更した場合であっても、電磁ブレーキ装置による電磁力を効率的に溶鋼に作用させることができ、電磁ブレーキ装置による鋳片の内部への非金属介在物及び気泡の巻き込み防止効果を十分に奏功せしめることが可能な連続鋳造用鋳型を提供することを目的とする。   The present invention has been made in view of the above-described situation, and the distance between the pair of long side members is adjusted to replace the short side members, and the thickness of the slab to be manufactured is changed, For continuous casting which can effectively exert the electromagnetic force by the electromagnetic brake device on the molten steel, and can sufficiently prevent the non-metallic inclusions and air bubbles from getting into the interior of the slab by the electromagnetic brake device The purpose is to provide a template.

上記課題を解決するために、本発明者らが鋭意検討し、磁場解析を行った結果、鋳片の厚みが変更された場合であっても、電磁ブレーキ装置の一対のコイルの間隔を適正化することによって、鋳造空間内の溶鋼に対して電磁力を効率的に作用させることが可能であるとの知見を得た。   In order to solve the above problems, the inventors of the present invention conducted intensive studies and conducted magnetic field analysis. As a result, even if the thickness of the slab was changed, the distance between the pair of coils of the electromagnetic brake device was optimized. By doing this, it has been found that it is possible to cause electromagnetic force to efficiently act on molten steel in the casting space.

本発明は、上述の知見に基づいてなされたものであって、本発明に係る連続鋳造用鋳型は、互いに対向する一対の長辺部材と、これら一対の長辺部材に挟持されるとともに互いに対向する一対の短辺部材と、電磁ブレーキ装置と、一対の前記長辺部材の間隔を調整する長辺部材間隔調整手段と、を有し、前記電磁ブレーキ装置は、一対の前記長辺部材とともに対向配置された一対のコアと、これらコアの周囲にそれぞれ捲回された一対のコイルと、を備えており、対向配置された一対の前記コイルの間隔を調整するコイル間隔調整手段を備えていることを特徴としている。   The present invention has been made based on the above-described findings, and the continuous casting mold according to the present invention is held between a pair of long side members facing each other and the pair of long side members and facing each other. And an electromagnetic brake device, and long side member interval adjustment means for adjusting the distance between the pair of long side members, the electromagnetic brake device being opposed with the pair of long side members A pair of arranged cores and a pair of coils respectively wound around the cores are provided, and coil spacing adjusting means is provided for adjusting the spacing of the pair of opposed coils. It is characterized by

この構成の連続鋳造用鋳型によれば、対向配置された一対の前記コイルの間隔を調整するコイル間隔調整手段を備えているので、長辺部材間隔調整手段によって一対の前記長辺部材の間隔を調整して短辺部材を交換して鋳片の厚みを変更した場合であっても、一対のコイルの間隔を適正化させることができ、鋳造空間内の溶鋼に対して効率的に電磁力を作用させることができる。
よって、電磁ブレーキ装置による鋳片の内部への非金属介在物及び気泡の巻き込み防止効果を十分に奏功せしめることができ、巻き込みの少ない高品質な鋳片を製造することができる。 According to the casting mold for continuous casting of this configuration, since the coil interval adjusting means for adjusting the interval between the pair of opposed coils is provided, the distance between the pair of long side members is adjusted by the long side member interval adjusting means. Even in the case where the short side members are replaced and the thickness of the slab is changed, the distance between the pair of coils can be made appropriate, and the electromagnetic force can be efficiently applied to the molten steel in the casting space. Can act.
Therefore, the effect of preventing the inclusion of non-metallic inclusions and air bubbles in the inside of the slab by the electromagnetic brake device can be sufficiently achieved, and a high quality slab with little entrainment can be manufactured.

ここで、本発明の連続鋳造用鋳型においては、前記コイル間隔調整手段は、前記コアとともに前記コイルを移動させる構成としてもよい。
この場合、一対のコアの間隔も調整可能となり、鋳造空間内の溶鋼に対してさらに効率的に電磁力を作用させることができる。
また、コア部材を移動可能とすることで、短辺部材を交換する際の作業スペースを十分に確保することができ、交換作業を効率的に実施することができる。 Here, in the casting mold for continuous casting of the present invention, the coil interval adjusting means may move the coil together with the core.
In this case, the distance between the pair of cores can also be adjusted, and the electromagnetic force can be more efficiently applied to the molten steel in the casting space.
Further, by making the core member movable, it is possible to secure a sufficient work space when replacing the short side member, and the replacement operation can be efficiently performed.

また、本発明の連続鋳造用鋳型においては、前記コイル間隔調整手段は、前記長辺部材間隔調整手段による前記長辺部材の移動と同期して、前記コイルを移動する構成とされていてもよい。
この場合、前記長辺部材間隔調整手段によって一対の長辺部材の間隔を調整する際に、これに同期して、前記コイル間隔調整手段によって一対のコイルの間隔も調整されることになり、間隔調整作業を効率的に実施することができる。
また、一つの駆動装置で前記長辺部材間隔調整手段及び前記コイル間隔調整手段を構成することもでき、設備構成を簡素化することが可能となる。 In the casting mold for continuous casting according to the present invention, the coil interval adjusting means may move the coil in synchronization with the movement of the long side member by the long side member interval adjusting means. .
In this case, when adjusting the distance between the pair of long side members by the long side member distance adjusting means, the distance between the pair of coils is also adjusted by the coil distance adjusting means in synchronization with this. Adjustment work can be performed efficiently.
Further, the long side member interval adjustment means and the coil interval adjustment means can be configured by one drive device, and the equipment configuration can be simplified.

上述のように、本発明によれば、一対の長辺部材の間隔を調整して短辺部材を交換し、製造する鋳片の厚みを変更した場合であっても、電磁ブレーキ装置による電磁力を効率的に溶鋼に作用させることができ、電磁ブレーキ装置による鋳片の内部への非金属介在物及び気泡の巻き込み防止効果を十分に奏功せしめることが可能な連続鋳造用鋳型を提供することができる。   As described above, according to the present invention, the electromagnetic force by the electromagnetic brake device is adjusted even when the thickness of the slab to be manufactured is changed by adjusting the distance between the pair of long side members and replacing the short side members. To provide a continuous casting mold capable of efficiently acting on molten steel and sufficiently achieving the effect of preventing inclusion of non-metallic inclusions and air bubbles into the interior of the slab by the electromagnetic brake device. it can.

本発明の実施形態である連続鋳造用鋳型を備えた連続鋳造装置の一例を示す概略説明図である。It is a schematic explanatory drawing which shows an example of the continuous casting apparatus provided with the casting mold for continuous casting which is embodiment of this invention. 本発明の実施形態である連続鋳造用鋳型の側面説明図である。It is side explanatory drawing of the casting mold which is embodiment of this invention. 本発明の実施形態である連続鋳造用鋳型の平面説明図及び一部断面説明図である。BRIEF DESCRIPTION OF THE DRAWINGS It is plane | planar explanatory drawing and partial cross-section explanatory drawing of the casting-mold for continuous casting which is embodiment of this invention. 本発明の実施形態である連続鋳造用鋳型の正面説明図である。It is front explanatory drawing of the casting mold for continuous casting which is embodiment of this invention. 鋳造時における連続鋳造装置の鋳造空間内の概略説明図である。It is a schematic explanatory drawing in the casting space of the continuous casting apparatus at the time of casting.

以下に、本発明の実施形態について、添付した図面を参照して説明する。なお、本発明は、以下の実施形態に限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The present invention is not limited to the following embodiments.

まず、図１に示した本実施形態である連続鋳造用鋳型５０を備えた連続鋳造装置１０をについて説明する。   First, a continuous casting apparatus 10 including the continuous casting mold 50 according to the present embodiment shown in FIG. 1 will be described.

図１に示す連続鋳造設備１０は、本実施形態である連続鋳造用鋳型５０と、この連続鋳造用鋳型５０の下方に位置する複数のサポートロール２６からなるサポートロール群２０と、を備えており、連続鋳造用鋳型５０から製出された鋼鋳片３０を下方へと引き抜く垂直帯１４と、鋼鋳片３０を湾曲させる曲げ帯１５と、湾曲させた鋼鋳片３０を曲げ戻す矯正帯１６と、鋼鋳片３０を水平方向へ搬送する水平帯１７と、を有する垂直曲げ型連続鋳造機とされている。   A continuous casting facility 10 shown in FIG. 1 includes a casting mold 50 for continuous casting according to the present embodiment, and a support roll group 20 including a plurality of support rolls 26 located below the casting mold 50 for continuous casting. A vertical band 14 for pulling the steel slab 30 produced from the continuous casting mold 50 downward, a bending band 15 for bending the steel slab 30, and a correction band 16 for bending back the curved steel slab 30. And a horizontal band 17 which conveys the steel slab 30 in the horizontal direction.

ここで、サポートロール群２０は、鋼鋳片３０を下方へと引き抜く垂直帯１４に位置するピンチロールユニット２１と、鋼鋳片３０を湾曲させる曲げ帯１５に位置するベンディングロールユニット２２と、湾曲させた鋼鋳片３０を曲げ戻す矯正帯１６に位置する矯正ロールユニット２３と、鋼鋳片３０を水平方向へ搬送する水平帯１７に位置する水平ロールユニット２４と、を備えている。
なお、これらのサポートロール２６は、鋼鋳片３０の幅方向に延在しており、鋼鋳片３０の長辺面を支持する構成とされている。 Here, the support roll group 20 includes a pinch roll unit 21 positioned in the vertical band 14 for pulling out the steel billet 30 downward, a bending roll unit 22 positioned in the bending band 15 for curving the steel billet 30, and a curve The correction roll unit 23 located in the correction | amendment zone 16 which bends the made steel slab 30 back, and the horizontal roll unit 24 located in the horizontal zone 17 which conveys the steel slab 30 in a horizontal direction are provided.
These support rolls 26 extend in the width direction of the cast steel piece 30 and are configured to support the long side surfaces of the cast steel piece 30.

そして、本実施形態である連続鋳造用鋳型５０においては、図２及び図３に示すように、一対の長辺部材５１（５１ａ、５１ｂ）と、この一対の長辺部材５１（５１ａ、５１ｂ）に挟持される一対の短辺部材５６（５６ａ、５６ｂ）と、電磁ブレーキ装置６０と、一対の長辺部材５１（５１ａ、５１ｂ）の間隔を調整する長辺部材間隔調整手段７０と、を備えており、長辺部材間隔調整手段７０によって、一対の長辺部材５１（５１ａ、５１ｂ）の間隔を広げて一対の短辺部材５６（５６ａ、５６ｂ）を交換することにより、製造する鋼鋳片３０の厚みを変更可能な構成とされている。   And in the casting mold 50 for continuous casting which is this embodiment, as shown in Drawing 2 and Drawing 3, a pair of long side members 51 (51a, 51b), and this pair of long side members 51 (51a, 51b) A pair of short side members 56 (56a, 56b) held by each other, an electromagnetic brake device 60, and long side member interval adjustment means 70 for adjusting the distance between the pair of long side members 51 (51a, 51b) Steel slab manufactured by exchanging the pair of short side members 56 (56a, 56b) by increasing the distance between the pair of long side members 51 (51a, 51b) by means of the long side member interval adjustment means 70 The thickness of 30 can be changed.

長辺部材５１（５１ａ、５１ｂ）は、図２に示すように、長辺銅板５２（５２ａ、５２ｂ）と、この長辺銅板５２（５２ａ、５２ｂ）を冷却する長辺冷却箱５３（５３ａ、５３ｂ）と、を備えている。
そして、一対の長辺部材５１（５１ａ、５１ｂ）の一方（図２において右側）が第一長辺部材５１ａとされ、一対の長辺部材５１（５１ａ、５１ｂ）の他方（図２において左側）が第二長辺部材５１ｂとされている。
そして、第一長辺部材５１ａが固定されており、第二長辺部材５１ｂが長辺部材間隔調整手段７０によって移動するように構成されている。 As shown in FIG. 2, the long side members 51 (51 a, 51 b) are long side cooling boxes 53 (53 a, 53 a, 52 a, 52 b) and long side copper plates 52 (52 a, 52 b). 53b) and.
Then, one of the pair of long side members 51 (51a, 51b) (right side in FIG. 2) is the first long side member 51a, and the other (left side in FIG. 2) of the pair of long side members 51 (51a, 51b) Is the second long side member 51b.
Then, the first long side member 51 a is fixed, and the second long side member 51 b is configured to be moved by the long side member interval adjusting means 70.

短辺部材５６（５６ａ、５６ｂ）は、図３に示すように、短辺銅板５７（５７ａ、５７ｂ）と、この短辺銅板５７（５７ａ、５７ｂ）を冷却する短辺冷却部５８（５８ａ、５８ｂ）と、を備えている。
この短辺部材５６（５６ａ、５６ｂ）の短辺銅板５７（５７ａ、５７ｂ）が、一対の長辺部材５１（５１ａ、５１ｂ）の長辺銅板５２（５２ａ、５２ｂ）に挟持されることによって、断面矩形状の鋳造空間Ｓが形成されている。
また、短辺部材５６（５６ａ、５６ｂ）においては、短辺冷却部５８（５８ａ、５８ｂ）の背面側（短辺銅板５７の反対側）には、短辺部材移動手段５９としてシリンダ部材が配設されており、鋳造空間Ｓの幅長さ（すなわち、鋼鋳片３０の幅）を調整可能とされている。 The short side members 56 (56a, 56b) are, as shown in FIG. 3, short side copper plates 57 (57a, 57b) and short side cooling portions 58 (58a, 58b) for cooling the short side copper plates 57 (57a, 57b). 58b) and.
The short side copper plates 57 (57a, 57b) of the short side members 56 (56a, 56b) are held by the long side copper plates 52 (52a, 52b) of the pair of long side members 51 (51a, 51b). A casting space S having a rectangular cross section is formed.
In the short side member 56 (56a, 56b), a cylinder member is disposed as the short side member moving means 59 on the back side (the opposite side of the short side copper plate 57) of the short side cooling portion 58 (58a, 58b). The width of the casting space S (that is, the width of the cast steel piece 30) can be adjusted.

一対の長辺部材５１（５１ａ、５１ｂ）の間隔を調整する長辺部材間隔調整手段７０は、図３に示すように、上面視して、長辺銅板５２（５２ａ、５２ｂ）を挟んで両側に配設された一対のシリンダ部材によって構成されている。
長辺部材間隔調整手段７０によって、第二長辺部材５１ｂが、第一長辺部材５１ａに対して近接離反するように移動することで、一対の長辺部材５１（５１ａ、５１ｂ）の間隔を調整可能とされている。 The long side member interval adjustment means 70 for adjusting the distance between the pair of long side members 51 (51a, 51b) is, as shown in FIG. 3, viewed from above, and both sides sandwiching the long side copper plate 52 (52a, 52b) It is comprised by a pair of cylinder member arrange | positioned.
The second long side member 51b is moved closer to and away from the first long side member 51a by the long side member interval adjusting means 70, whereby the distance between the pair of long side members 51 (51a, 51b) can be determined. It is considered adjustable.

電磁ブレーキ装置６０は、図２に示すように、一対の長辺部材５１（５１ａ、５１ｂ）とともに対向配置された一対のコア６１（６１ａ、６１ｂ）と、コア６１（６１ａ、６１ｂ）の周囲にそれぞれ捲回された一対のコイル６２（６２ａ、６２ｂ）と、対向配置された一対のコイル６２（６２ａ、６２ｂ）の間隔を調整するコイル間隔調整手段６７と、を備えている。   As shown in FIG. 2, the electromagnetic brake device 60 is provided around a pair of cores 61 (61 a, 61 b) disposed opposite to the pair of long side members 51 (51 a, 51 b) and the cores 61 (61 a, 61 b) A pair of coils 62 (62a, 62b) wound respectively and a coil interval adjusting means 67 for adjusting an interval between the pair of coils 62 (62a, 62b) disposed opposite to each other are provided.

本実施形態においては、図２に示すように、長辺部材５１（５１ａ、５１ｂ）の背面の下方部分には鋳造空間Ｓ側に向かって凹んだ凹部５４（５４ａ、５４ｂ）が形成されており、この凹部５４（５４ａ、５４ｂ）に、それぞれコア６１（６１ａ、６１ｂ）及びコイル６２（６２ａ、６２ｂ）が配置されている。これにより、鋳造空間部Ｓ内の溶鋼に対して、コア６１及びコイル６２が近接して配置される構成とされている。   In the present embodiment, as shown in FIG. 2, in the lower part of the back surface of the long side member 51 (51a, 51b), a recessed portion 54 (54a, 54b) recessed toward the casting space S is formed. The core 61 (61a, 61b) and the coil 62 (62a, 62b) are disposed in the recess 54 (54a, 54b), respectively. Thus, the core 61 and the coil 62 are disposed close to the molten steel in the casting space S.

そして、固定された第一長辺部材５１ａ側に配置された第一コア６１ａは、その後端部分が固定フレーム６８に固定され、その先端部分が第一長辺部材５１ａの凹部５４ａに挿入されている。
また、第一コア６１ａの周囲に捲回された第一コイル６２ａは、固定フレーム６８に固定されている。 The first core 61a disposed on the fixed first long side member 51a side is fixed to the fixed frame 68 at its rear end portion, and its leading end portion is inserted into the recess 54a of the first long side member 51a. There is.
Further, the first coil 62 a wound around the first core 61 a is fixed to the fixed frame 68.

一方、移動可能とされた第二長辺部材５１ｂ側に配置された第二コア６１ｂは、その後端部分が、固定フレーム６８に設けられた貫通孔６９に挿通されており、その先端部分が第二長辺部材５１ｂの凹部５４ｂに挿入されている。
また、第二コア６１ｂの周囲に捲回された第二コイル６２ｂは、第二コア６１ｂに支持されている。 On the other hand, the second core 61b disposed on the movable second long side member 51b side has the rear end portion thereof inserted through the through hole 69 provided in the fixed frame 68, and the tip end portion thereof is It is inserted in the recessed part 54b of the 2 long side member 51b.
The second coil 62b wound around the second core 61b is supported by the second core 61b.

そして、コイル間隔調整手段６７は、図２から図４に示すように、第二コア６１ｂの後端に接続されたシリンダ部材で構成されている。
すなわち、本実施形態では、第二コア６１ｂを移動することにより、この第二コア６１ｂに支持された第二コイル６２ｂを移動させ、一対のコイル６２（６２ａ、６２ｂ）の間隔を調整する構成とされている。 The coil interval adjusting means 67 is formed of a cylinder member connected to the rear end of the second core 61b, as shown in FIGS.
That is, in the present embodiment, by moving the second core 61b, the second coil 62b supported by the second core 61b is moved to adjust the distance between the pair of coils 62 (62a, 62b). It is done.

次に、本実施形態である連続鋳造用鋳型５０を備えた連続鋳造設備１０による鋼鋳片３０の製造方法について説明する。   Next, a method of manufacturing the steel cast piece 30 by the continuous casting facility 10 including the continuous casting mold 50 according to the present embodiment will be described.

まず、一対の長辺部材５１（５１ａ、５１ｂ）の間に一対の短辺部材５６（５６ａ、５６ｂ）を挿入し、短辺部材移動手段５９によって、鋳造する鋼鋳片３０の幅に応じて一対の短辺部材５６（５６ａ、５６ｂ）の位置調整を行う。
その後、長辺部材間隔調整手段７０によって、第二長辺部材５１ｂを第一長辺部材５１ａに近接するように移動させて一対の長辺部材５１（５１ａ、５１ｂ）の間隔を狭め、一対の短辺部材５６（５６ａ、５６ｂ）を挟持する。これにより、図３に示すように、断面矩形状の鋳造空間Ｓが形成される。
そして、電磁ブレーキ装置６０のコイル間隔調整手段６７によって、第二コイル６２ｂを第二コア６１ｂとともに移動させて、一対のコイル６２（６２ａ、６２ｂ）の間隔を調整する。 First, the pair of short side members 56 (56a, 56b) is inserted between the pair of long side members 51 (51a, 51b), and the short side member moving means 59 is used to adjust the width of the cast steel piece 30 to be cast. Position adjustment of the pair of short side members 56 (56a, 56b) is performed.
Thereafter, the second long side member 51b is moved closer to the first long side member 51a by the long side member interval adjusting means 70 to narrow the distance between the pair of long side members 51 (51a, 51b). The short side members 56 (56a, 56b) are held. As a result, as shown in FIG. 3, a casting space S having a rectangular cross section is formed.
Then, the coil spacing adjustment means 67 of the electromagnetic brake device 60 moves the second coil 62b together with the second core 61b to adjust the spacing between the pair of coils 62 (62a, 62b).

上述のように、連続鋳造用鋳型５０を調整して鋳造空間Ｓを形成した後、鋳造空間Ｓ内に浸漬ノズル１２を配置する。
ここで、図５に示すように、上述の浸漬ノズル１２には、一対の吐出孔１３（１３ａ、１３ｂ）が設けられており、これらの吐出孔１３（１３ａ、１３ｂ）から溶鋼が吐出される。 As described above, after adjusting the continuous casting mold 50 to form the casting space S, the immersion nozzle 12 is disposed in the casting space S.
Here, as shown in FIG. 5, the above-mentioned immersion nozzle 12 is provided with a pair of discharge holes 13 (13a, 13b), and molten steel is discharged from these discharge holes 13 (13a, 13b) .

鋳型空間Ｓ内の溶鋼は、短辺部材５６（５６ａ、５６ｂ）及び長辺部材５１（５１ａ、５１ｂ）から冷却され、短辺銅板５７（５７ａ、５７ｂ）及び長辺銅板５２（５２ａ、５２ｂ）の表面に凝固シェル３１が形成され、鋳造空間Ｓの断面形状に応じた鋼鋳片３０が製造される。   The molten steel in the mold space S is cooled from the short side members 56 (56a, 56b) and the long side members 51 (51a, 51b), and the short side copper plates 57 (57a, 57b) and the long side copper plates 52 (52a, 52b) The solidified shell 31 is formed on the surface of the steel, and the steel slab 30 corresponding to the cross-sectional shape of the casting space S is manufactured.

ここで、鋳造空間Ｓ内の溶鋼の上には、溶鋼の保温、及び、凝固シェル３１と短辺銅板５７及び長辺銅板５２との間の潤滑性を確保するために、鋳造パウダーが供給される。また、鋼鋳片３０への非金属介在物の持ち込みを防止するために、鋳造空間Ｓ内に供給される溶鋼に対してアルゴンガス等の不活性ガスを吹き込まれる。
このとき、吹き込まれるアルゴンガスの気泡、鋳造パウダー及び介在物等が、浸漬ノズル１２からの吐出流によって鋳造空間Ｓ内の下方位置にまで混入することがある。
本実施形態の連続鋳造用鋳型５０においては、電磁ブレーキ装置６０を備えており、電磁力を作用させることで鋳造空間Ｓの下方側へ向かう溶鋼の流速を抑制している。これにより、気泡、鋳造パウダー及び介在物等が鋳型の下方側へと混入することを抑制し、鋼鋳片３０の内部への非金属介在物及び気泡の巻き込みを低減している。 Here, on the molten steel in the casting space S, casting powder is supplied to maintain the molten steel and to ensure the lubricity between the solidified shell 31 and the short side copper plate 57 and the long side copper plate 52. Ru. Further, in order to prevent the non-metallic inclusions from being carried into the steel cast piece 30, an inert gas such as argon gas is blown into the molten steel supplied into the casting space S.
At this time, bubbles of argon gas, cast powder, inclusions and the like to be blown may be mixed to the lower position in the casting space S by the discharge flow from the immersion nozzle 12.
In the continuous casting mold 50 of the present embodiment, the electromagnetic brake device 60 is provided, and the flow velocity of the molten steel directed to the lower side of the casting space S is suppressed by applying an electromagnetic force. Thereby, air bubbles, casting powder, inclusions and the like are prevented from being mixed to the lower side of the mold, and non-metallic inclusions and air bubbles are reduced inside the steel slab 30.

そして、連続鋳造設備１０に連続鋳造用鋳型５０を取り付けた状態で（オンラインで）、鋼鋳片３０の厚みを変更する場合には、一旦、浸漬ノズル１２からの溶鋼の供給を中止する。
この状態で、まず、コイル間隔調整手段６７によって、第二コイル６２ｂを第二コア６１ｂとともに、第一コイル６２ａ及び第一コア６１ａから離間するように移動させて、一対のコイル６２（６２ａ、６２ｂ）の間隔、及び、一対のコア６１（６１ａ、６１ｂ）の間隔を広げておく。これにより、第二長辺部材５１ｂを移動させた際に、第二コイル６２ｂ及び第二コア６１ｂと干渉しないように、第二長辺部材５１ｂの移動空間を確保する。 And in the state which attached the casting mold 50 for continuous casting to the continuous casting installation 10 (on-line), when changing the thickness of the steel slab 30, the supply of the molten steel from the immersion nozzle 12 is once stopped.
In this state, first, the second coil 62b is moved together with the second core 61b so as to be separated from the first coil 62a and the first core 61a by the coil interval adjusting means 67, and the pair of coils 62 (62a, 62b And the distance between the pair of cores 61 (61a, 61b) are extended. Thereby, when moving the 2nd long side member 51b, the movement space of the 2nd long side member 51b is ensured so that it may not interfere with the 2nd coil 62b and the 2nd core 61b.

次に、長辺部材間隔調整手段７０によって、第二長辺部材５１ｂを第一長辺部材５１ａから離間するように移動させて一対の長辺部材５１（５１ａ、５１ｂ）の間隔を広げておく。
この状態で、使用した一対の短辺部材５６（５６ａ、５６ｂ）を取り出し、次に鋳造する鋼鋳片３０の厚みに応じた新たな一対の短辺部材５６（５６ａ、５６ｂ）を一対の長辺部材５１（５１ａ、５１ｂ）の間に挿入する。そして、短辺部材移動手段５９によって、鋳造する鋼鋳片３０の幅に応じて一対の短辺部材５６（５６ａ、５６ｂ）の位置調整を行う。 Next, the second long side member 51b is moved so as to be separated from the first long side member 51a by the long side member interval adjusting means 70, and the distance between the pair of long side members 51 (51a, 51b) is increased. .
In this state, the pair of short side members 56 (56a, 56b) are taken out, and a new pair of short side members 56 (56a, 56b) according to the thickness of the steel slab 30 to be cast next It inserts between the side members 51 (51a, 51b). Then, the position adjustment of the pair of short side members 56 (56a, 56b) is performed by the short side member moving means 59 in accordance with the width of the cast steel piece 30.

その後、長辺部材間隔調整手段７０によって、第二長辺部材５１ｂを第一長辺部材５１ａに近接するように移動させて一対の長辺部材５１（５１ａ、５１ｂ）の間隔を狭め、一対の短辺部材５６（５６ａ、５６ｂ）を挟持する。
そして、電磁ブレーキ装置６０のコイル間隔調整手段６７によって、第二コイル６２ｂを第二コア６１ｂとともに移動させて、一対のコイル６２（６２ａ、６２ｂ）の間隔を調整する。 Thereafter, the second long side member 51b is moved closer to the first long side member 51a by the long side member interval adjusting means 70 to narrow the distance between the pair of long side members 51 (51a, 51b). The short side members 56 (56a, 56b) are held.
Then, the coil spacing adjustment means 67 of the electromagnetic brake device 60 moves the second coil 62b together with the second core 61b to adjust the spacing between the pair of coils 62 (62a, 62b).

このようにして、短辺部材５６の交換をオンラインで行ったのち、浸漬ノズル１２から溶鋼の供給を行い、鋼鋳片３０の鋳造を再開する。   Thus, after exchanging the short side member 56 online, molten steel is supplied from the immersion nozzle 12 and casting of the steel slab 30 is resumed.

以上のような構成とされた本実施形態によれば、対向配置された一対のコイル６２（６２ａ、６２ｂ）の間隔を調整するコイル間隔調整手段６７を備えているので、長辺部材間隔調整手段７０によって一対の長辺部材５１（５１ａ、５１ｂ）の間隔を調整して短辺部材５６を交換して鋼鋳片３０の厚みを変更した場合であっても、一対のコイル６２（６２ａ、６２ｂ）の間隔を適正化させることができ、鋳造空間Ｓ内の溶鋼に対して効率的に電磁力を作用させることができる。
よって、電磁ブレーキ装置６０による鋼鋳片３０の内部への非金属介在物及び気泡の巻き込み防止効果を十分に奏功せしめることができ、巻き込みの少ない高品質な鋼鋳片３０を製造することができる。 According to this embodiment configured as described above, since the coil interval adjusting means 67 for adjusting the interval between the pair of coils 62 (62a, 62b) disposed opposite to each other is provided, the long side member interval adjusting means Even when the thickness of the steel slab 30 is changed by adjusting the distance between the pair of long side members 51 (51a, 51b) by 70 and replacing the short side member 56, the pair of coils 62 (62a, 62b) Can be optimized, and electromagnetic force can be efficiently applied to the molten steel in the casting space S.
Therefore, the effect of preventing the inclusion of non-metallic inclusions and air bubbles into the inside of the steel cast piece 30 by the electromagnetic brake device 60 can be sufficiently achieved, and a high quality steel cast piece 30 with low entrainment can be manufactured. .

また、本実施形態においては、コイル間隔調整手段６７は、第二コア６１ｂを移動させることにより、この第二コア６１ｂに支持された第二コイル６２ｂを移動させ、一対のコイル６２（６２ａ、６２ｂ）の間隔を調整する構成とされているので、コイル間隔調整手段６７によって、一対のコア６１（６１ａ、６１ｂ）の間隔も調整可能となり、鋳造空間Ｓ内の溶鋼に対してさらに効率的に電磁力を作用させることができる。
また、コア６１を移動可能とすることで、短辺部材５６を交換する際の作業スペースを十分に確保することができ、交換作業を効率的に実施することができる。 Further, in the present embodiment, by moving the second core 61b, the coil interval adjustment means 67 moves the second coil 62b supported by the second core 61b, and the pair of coils 62 (62a, 62b) is moved. Since the spacing between the cores 61 (61a, 61b) can be adjusted by the coil spacing adjusting means 67, the coil spacing adjusting means 67 can adjust the spacing of the molten steel in the casting space S more efficiently. Force can be exerted.
Further, by making the core 61 movable, a working space for replacing the short side member 56 can be sufficiently secured, and the replacing operation can be performed efficiently.

以上、本発明の実施形態である連続鋳造用鋳型について具体的に説明したが、本発明はこれに限定されることはなく、その発明の技術的思想を逸脱しない範囲で適宜変更可能である。
例えば、本実施形態では、図１に示す連続鋳造装置を用いたものとして説明したが、これに限定されることはなく、その他の構成の連続鋳造装置等を用いてもよい。 As mentioned above, although the casting mold for continuous casting which is an embodiment of the present invention was explained concretely, the present invention is not limited to this, and it can change suitably in the range which does not deviate from the technical idea of the invention.
For example, in this embodiment, although it demonstrated as what used the continuous casting apparatus shown in FIG. 1, it is not limited to this, You may use the continuous casting apparatus etc. of another structure.

また、本実施形態では、コイル間隔調整手段は、コイルをコアとともに移動する構成のものとして説明したが、これに限定されることはなく、コイルのみを移動する構成としてもよい。   Moreover, in this embodiment, although the coil space | interval adjustment means was demonstrated as a thing of the structure which moves a coil with a core, it is not limited to this, It is good also as a structure which moves only a coil.

さらに、コイル間隔調整手段は、長辺部材間隔調整手段による長辺部材の移動と同期して、コイルを移動する構成としてもよい。このように構成することで、コイル間隔の調整作業を効率的に実施することが可能となる。また、一つの駆動装置で前記長辺部材間隔調整手段及び前記コイル間隔調整手段を構成することもでき、設備構成を簡素化することが可能となる。   Furthermore, the coil interval adjusting means may move the coil in synchronization with the movement of the long side member by the long side member interval adjusting means. With this configuration, it is possible to efficiently carry out the adjustment operation of the coil spacing. Further, the long side member interval adjustment means and the coil interval adjustment means can be configured by one drive device, and the equipment configuration can be simplified.

また、本実施形態では、一対のコイルの一方を固定し、他方を移動可能とした構成として説明したが、これに限定されることはなく、一対のコイルの両方を移動可能な構成としてもよい。
さらに、オンラインだけでなく、オフラインで短辺部材を交換した際にも、コア、コイル位置の調整を行っても良い。 In the present embodiment, one of the pair of coils is fixed and the other is movable. However, the present invention is not limited to this, and both of the pair of coils may be movable. .
Furthermore, the core and coil positions may be adjusted not only online but also when the short side members are replaced off-line.

５０ 連続鋳造用鋳型
５１ 長辺部材
５６ 短辺部材
６０ 電磁ブレーキ装置
６１ コア
６２ コイル
６７ コイル間隔調整手段
７０ 長辺部材間隔調整手段 50 Continuous Casting Mold 51 Long Side Member 56 Short Side Member 60 Electromagnetic Brake Device 61 Core 62 Coil 67 Coil Spacing Means 70 Long Spacing Element Spacing Means

Claims (3)

互いに対向する一対の長辺部材と、これら一対の長辺部材に挟持されるとともに互いに対向する一対の短辺部材と、電磁ブレーキ装置と、一対の前記長辺部材の間隔を調整する長辺部材間隔調整手段と、を有し、
前記電磁ブレーキ装置は、一対の前記長辺部材とともに対向配置された一対のコアと、これらコアの周囲にそれぞれ捲回された一対のコイルと、を備えており、
対向配置された一対の前記コイルの間隔を調整するコイル間隔調整手段を備えていることを特徴とする連続鋳造用鋳型。 A long side member for adjusting a distance between a pair of long side members facing each other, a pair of short side members held by the pair of long side members and facing each other, an electromagnetic brake device, and the pair of long side members Interval adjustment means, and
The electromagnetic brake device includes a pair of cores disposed opposite to each other along with the pair of long side members, and a pair of coils respectively wound around the cores.
A continuous casting mold comprising coil spacing adjusting means for adjusting the spacing between the pair of coils disposed opposite to each other. 前記コイル間隔調整手段は、前記コアとともに前記コイルを移動させることを特徴とする請求項１に記載の連続鋳造用鋳型。   The mold for continuous casting according to claim 1, wherein the coil spacing adjusting means moves the coil together with the core. 前記コイル間隔調整手段は、前記長辺部材間隔調整手段による前記長辺部材の移動と同期して、前記コイルを移動する構成とされていることを特徴とする請求項１または請求項２に記載の連続鋳造用鋳型。   The coil spacing adjusting means is configured to move the coil in synchronization with the movement of the long side members by the long side member spacing adjusting means. Of continuous casting molds.
JP2018003691A 2018-01-12 2018-01-12 Mold for continuous casting Active JP7072388B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018003691A JP7072388B2 (en) 2018-01-12 2018-01-12 Mold for continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018003691A JP7072388B2 (en) 2018-01-12 2018-01-12 Mold for continuous casting

Publications (2)

Publication Number Publication Date
JP2019122971A true JP2019122971A (en) 2019-07-25
JP7072388B2 JP7072388B2 (en) 2022-05-20

Family

ID=67397204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018003691A Active JP7072388B2 (en) 2018-01-12 2018-01-12 Mold for continuous casting

Country Status (1)

Country Link
JP (1) JP7072388B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05293598A (en) * 1992-04-20 1993-11-09 Kawasaki Steel Corp Device for impressing static magnetic field in mold for continuous casting
JPH067892A (en) * 1992-06-24 1994-01-18 Nippon Steel Corp Electromagnet of continuous casting apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05293598A (en) * 1992-04-20 1993-11-09 Kawasaki Steel Corp Device for impressing static magnetic field in mold for continuous casting
JPH067892A (en) * 1992-06-24 1994-01-18 Nippon Steel Corp Electromagnet of continuous casting apparatus

Also Published As

Publication number Publication date
JP7072388B2 (en) 2022-05-20

Similar Documents

Publication Publication Date Title
US5634510A (en) Integrated manufacturing system
JP6236525B2 (en) Steel plant with multiple co-rolling lines and corresponding manufacturing method
CN102806325B (en) Twin-belt casting machine and method of continuous slab casting
CN102039388A (en) Casting guiding device
CN101362150B (en) Double-roller casting rolling mill capable of arbitrarily adjusting roll gap
KR20080078650A (en) Method for the continuous casting of thin metal strip and continuous casting installation
JP2019122971A (en) Mold for continuous casting
RU2484921C2 (en) Method of producing long-length rolled stock by continuous casting and rolling
TWI496633B (en) Verfahren und vertikalstranggiessanlage zum herstellen von dicken brammen aus einer metallischen schmelze
KR100417393B1 (en) Process and apparatus for continuous casting near net shape products
JPWO2018056322A1 (en) Steel continuous casting method
KR100739633B1 (en) Dummy bar head
RU2008140284A (en) TAPE LINEAR MACHINE HAVING AN ADJUSTABLE LENGTH OF CONTACT WITH MOLDABLE METAL PREPARATION
KR20120063713A (en) Roll segment for continuous casting system
JP2006255729A (en) Method for cooling cast slab in continuous casting
CN102387878A (en) Continuous casting facility
JP2011230151A (en) Molding device for continuous casting
WO2018056322A1 (en) Continuous steel casting method
CN201979064U (en) Casting flow guide device
AU711139B2 (en) Method and device for guiding strands in a continuous casting installation
JP2007118043A (en) Cooling grid facility for continuous caster, and method for producing continuously cast slab
JP2017100140A (en) Continuous casting method of steel
JP2007125575A (en) Method for continuously producing cast slab
JP2009136908A (en) Method for drawing out slab after completion of casting in continuous casting
JP2012000635A (en) Cast slab cutting apparatus and continuous casting equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200923

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20210430

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20210514

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20210615

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210629

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20211207

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220218

C60 Trial request (containing other claim documents, opposition documents)

Free format text: JAPANESE INTERMEDIATE CODE: C60

Effective date: 20220218

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20220303

C21 Notice of transfer of a case for reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C21

Effective date: 20220308

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220412

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220510

R150 Certificate of patent or registration of utility model

Ref document number: 7072388

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350