JPS634029A - Electric power supply device for holding ingot in electroslag remelting furnace - Google Patents
Electric power supply device for holding ingot in electroslag remelting furnaceInfo
- Publication number
- JPS634029A JPS634029A JP61145750A JP14575086A JPS634029A JP S634029 A JPS634029 A JP S634029A JP 61145750 A JP61145750 A JP 61145750A JP 14575086 A JP14575086 A JP 14575086A JP S634029 A JPS634029 A JP S634029A
- Authority
- JP
- Japan
- Prior art keywords
- ingot
- power supply
- brush
- face
- holding
- 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.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000000605 extraction Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は高級鋼の製造装置の一つであるエレクトロスラ
グ再溶解炉において造塊されたインゴットを抽出のため
に把持すると共に該インゴットに給電する装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is an electroslag remelting furnace, which is one of high-grade steel manufacturing equipment, which grips an ingot formed into an ingot for extraction and also supplies power to the ingot. This relates to a device for
［発明の背景コ
エレクトロスラグ再溶解炉（ＥＳＲ炉）は周知のように
水冷鋳型内において消耗電極を溶融スラグ中に浸漬し、
該溶融スラグ中に発生する電気抵抗加熱によって消耗電
極を溶解するもので、該消耗電極はその熱によって順次
先端を溶かし溶融スラグ中に溶滴粒となって滴下し、滴
下した溶滴は水冷鋳型内で溶鋼プールを形成し、これが
鋳型内面にできる凝固スラグ薄層に包まれて凝固し順次
インゴットを形成していくものである。そしてインゴッ
トが成長してゆくに従って第４図に示したように水冷鋳
型ａを上昇させてゆく方法と、第５図に示したように水
冷鋳型ａは固定したままでインゴットｂを下降させてゆ
く方法とが従来からあった。なお第４図、第５図中、Ｃ
は消耗電極、ｄはインゴットｂの支持台、ｅは水冷鋳型
ａ内に溜る溶融スラグ、ｆは溶鋼プールを示す。[Background of the Invention] A co-electro slag remelting furnace (ESR furnace), as is well known, involves immersing a consumable electrode in molten slag in a water-cooled mold.
The consumable electrode is melted by electrical resistance heating generated in the molten slag, and the tip of the consumable electrode is sequentially melted by the heat and drips into the molten slag as droplets, and the dropped droplets are placed in a water-cooled mold. A molten steel pool is formed inside the mold, which is surrounded by a thin layer of solidified slag that forms on the inner surface of the mold and solidifies to form an ingot. As the ingot grows, the water-cooled mold a is raised as shown in Figure 4, or the ingot b is lowered while the water-cooled mold A remains fixed as shown in Figure 5. There has been a conventional method. In addition, in Figures 4 and 5, C
is a consumable electrode, d is a support for ingot b, e is molten slag accumulated in water-cooled mold a, and f is a molten steel pool.
しかしてそのいずれの場合でも造塊可能なインゴットｂ
の長さは水冷鋳型ａの可動ストローク或いは支持台ｄの
可動ストロークによって一定長以下に制限されていた。However, in either case, ingot b that can be made into ingots
The length of is limited to a certain length or less by the movable stroke of the water-cooled mold a or the movable stroke of the support base d.
このため−定長のインゴットを造塊する度に溶解を停止
させてそのインゴットを撤去し、次にまた一定長のイン
ゴットの造塊をスタートさせるという過程を経なければ
ならなず生産性および歩留りがよくないものであった。For this reason, each time an ingot of a certain length is agglomerated, it is necessary to stop melting, remove the ingot, and then start agglomerating another ingot of a certain length, which reduces productivity and yield. was not good.
そのような問題点を解決するため本発明者等は、水冷鋳
型の下部開口より順次抽出されるインゴットを把持する
少なくとも二つの把持器を設け、水冷鋳型より抽出され
るインゴットを該把持器により交互に把持できるように
すると共に、そのうちの少なくとも一方の把持器はイン
ゴットを把持した状態でインゴットの抽出速度に合わせ
て下降しその後インゴットを離して上昇し該インゴット
の上部を再度把持してインゴットの抽出速度に合わせて
下降するようにすることで所望とする長尺のインゴット
が連続的に形成されるようにしたエレクトロスラブ再溶
解炉およびその稼動方法を開発しその発明は本件とは別
に特許出願したが、本発明はそのようなエレクトロスラ
グ再溶解炉において水冷鋳型から抽出されたインゴット
を把持すると共に該インゴットに給電する装置を提供し
ようとするものである。即ちそのエレクトロスラグ再溶
解炉においては把持器を介してインゴットに給電するこ
ととなるが、本発明はそのための把持給電装置を提供し
ようとするものである。In order to solve such problems, the present inventors provided at least two grippers that grip the ingots that are sequentially extracted from the lower opening of the water-cooled mold, and the ingots that are extracted from the water-cooled mold are alternately gripped by the grippers. At least one of the grippers lowers in accordance with the ingot extraction speed while gripping the ingot, then releases the ingot and ascends, grips the upper part of the ingot again, and extracts the ingot. We have developed an electroslab remelting furnace and its operating method that allows the desired long ingot to be continuously formed by descending in accordance with the speed, and have filed a patent application for this invention separately from this case. However, the present invention seeks to provide a device for gripping an ingot extracted from a water-cooled mold in such an electroslag remelting furnace and for supplying power to the ingot. That is, in the electroslag remelting furnace, power is supplied to the ingot through a gripper, and the present invention provides a gripping power supply device for this purpose.
［発明の要旨］
本発明に係るインゴットの把持給電装置の特徴とすると
ころは、アームの先端部に軸支された硬質の把持爪の中
心に貫通孔を形成し該貫通孔に良導電性の給電刷子を進
退自在に配設し、該給電刷子をその先端面が把持爪の先
端面より突出するようにバネによって付勢してなること
にある。[Summary of the Invention] The ingot gripping power supply device according to the present invention is characterized by forming a through hole in the center of a hard gripping claw pivotally supported at the tip of the arm, and inserting a highly conductive material into the through hole. The power supply brush is arranged to move forward and backward, and the power supply brush is biased by a spring so that its tip end surface protrudes beyond the end surface of the gripping claw.
［作用コ
把持爪はインゴットを支持するに必要な圧力で該インゴ
ットに圧着するのに対して給電刷子はバネによって付勢
された一定の圧力でインゴットに圧着する。[Operation] The gripping claws press against the ingot with the pressure necessary to support the ingot, while the power supply brush presses against the ingot with a constant pressure biased by a spring.
［実施例コ
次に第１図ないし第３図に従い本発明の一実施例を説明
する。第１図に゛おいて、１は架台２上に支持された筒
状の水冷鋳型、３はその中に垂下された消耗電極、４は
鋳型１内で造塊されたインゴットである。架台２の支柱
２ ａ ＋ ２ ｂ 、の内側にリニア軸受５ａ、５ｂ
を設けて把持給電装置６ａ。[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. In FIG. 1, 1 is a cylindrical water-cooled mold supported on a pedestal 2, 3 is a consumable electrode suspended therein, and 4 is an ingot formed in the mold 1. Linear bearings 5a, 5b are installed inside the supports 2a + 2b of the frame 2.
A gripping power supply device 6a is provided.
６ｂがこの支柱に沿って上下昇降自在なるように設けら
れている。両把持給電装！６ａ、６ｂは同一構造である
のでここではその一方を第２図ないし第３図に拡大して
示す、しかしてこの把持給電装置は、器枠９に一対のア
ーム７．７がその略中間部で夫々支軸８，８により回転
自在に軸支され、該アーム７．７の先端は二叉状に形成
されこれに枢着軸１０．１０を回転自在なるように貫挿
し該枢着軸１０．１０に把持爪１１．１１を固着するこ
とで該把持爪１１．１１をアーム７．７の先端に回転自
在に軸支する。またアーム７．７の他端部にビン１２．
１２を設は賃アーム７．７を継ぐように流体圧シリンダ
１３を設ける。−方、１４ａ、１４ｂは支柱２ａ、２ｂ
と平行なるように上下部が夫々軸受１５ａ、１６ａ。6b is provided so as to be able to move up and down along this support. Double-grip power supply device! 6a and 6b have the same structure, so one of them is shown here in an enlarged manner in FIGS. The arms 7.7 are rotatably supported by support shafts 8, 8, respectively, and the distal ends of the arms 7.7 are formed into a forked shape, through which the pivot shafts 10.10 are rotatably inserted. By fixing the gripping claw 11.11 to the arm 7.10, the gripping claw 11.11 is rotatably supported on the tip of the arm 7.7. Also, a bottle 12 is attached to the other end of the arm 7.7.
12 and a hydraulic cylinder 13 is provided so as to connect the rental arm 7.7. - side, 14a, 14b are pillars 2a, 2b
The upper and lower parts are bearings 15a and 16a, respectively, parallel to each other.
ＩＳｂ、１６ｂによって回転自在に支承された螺子軸、
１７ａ、１７ｂは該螺子軸を回転動させるモータである
。把持給電装置Ｉ！６ａ、６ｂの背部に該螺子軸１４ａ
、１４ｂに螺合するナツト１８ａ、１８ｂが設けられて
おり、モータ１７ａ、１７ｂによって該螺子軸１４ａ。ISb, a screw shaft rotatably supported by 16b;
17a and 17b are motors that rotate the screw shafts. Gripping power supply device I! The screw shaft 14a is attached to the back of 6a and 6b.
, 14b are provided, and the screw shafts 14a are driven by motors 17a, 17b.
１４ｂが回転すると把持給電装置６ａ、６ｂは昇降動す
るようになっている。しかして把持爪１１．１１は耐摩
耗性が秀れた硬質の材料により形成されその先端面１１
’に滑り止め用の凹凸が刻設され、中心に形成された貫
通孔に導電性のよい銅製で略円柱状に形成された給電刷
子１９が進退自在に貫挿されている。該給電刷子１９の
中間部外周には鍔部２０が形成され該鍔部２０に該給電
刷子１９を前方に付勢するため座金２１を介して皿バネ
２２が圧着している。When 14b rotates, grip power supply devices 6a and 6b move up and down. Therefore, the gripping claws 11.11 are made of a hard material with excellent wear resistance, and their tip surfaces 11.
A non-slip unevenness is carved on the top, and a power supply brush 19 formed in a substantially cylindrical shape and made of copper with good conductivity is inserted into a through hole formed in the center so as to be freely advanced and retracted. A flange 20 is formed on the outer periphery of the intermediate portion of the power supply brush 19, and a disc spring 22 is crimped onto the flange 20 via a washer 21 in order to urge the power supply brush 19 forward.
２３は該皿バネ２２の他端を受止するため把持爪１１の
後部への螺着部材である。なお給電刷子１９の中心には
冷却水通水通路２４が形成され、 ２５．２５はその給
排水管接続口を示す、２６は該給電刷子１９の後端部に
ビス止めされた電源ケーブル端子を示す。該給電刷子１
９の先端面１９′は前記皿バネ２２の弾性によって把持
爪１１の先端面１１′より少し突出するようになってい
る。Reference numeral 23 designates a member screwed onto the rear part of the gripping claw 11 for receiving the other end of the disc spring 22. A cooling water passage 24 is formed in the center of the power supply brush 19, and 25 and 25 indicate its water supply and drainage pipe connection ports, and 26 indicates a power cable terminal screwed to the rear end of the power supply brush 19. . The power supply brush 1
Due to the elasticity of the disc spring 22, the distal end surface 19' of the gripper 9 projects slightly beyond the distal end surface 11' of the gripping claw 11.
このように構成されたエレクトロスラグ再溶解炉では水
冷鋳型１の下部開口より抽出されるインゴット４を一方
の把持給電装置６ａによって把持し該インゴットの抽出
速度に合うようにモータ１７ａによって回転動される螺
子軸１４ａの回転を制御し該把持給電装置６ａを下降さ
せる。そして該把持給電装置６ａがその上下ストローク
の下端に至る前に他方の把持給電装置６ｂを閉じて該イ
ンゴット４を把持し、該把持給電装置６ｂをモータ１７
ａと同調させたモータ１７ｂによって回転が制御される
螺子軸１４ｂの回転によってインゴット４の抽出速度に
合うよう下降させる。この−対の把持装置を一時期同時
に把持する目的は連続引抜するためのほかに通電を連続
的に安定した状態で行いアークの発生を防止するためで
ある。また前記把持給電装置６ａはその間にインゴット
４の把持を解いて螺子軸１４ａを逆転させることにより
上昇させ上下ストロークの上端にて時期させる。そして
把持給電装置１６ｂがその上下ストロークの下端に至る
前に把持給電装置６ａに再度インゴット４を把持させま
たもその抽出速度に合わせて下降させる。In the electroslag remelting furnace configured in this manner, the ingot 4 extracted from the lower opening of the water-cooled mold 1 is gripped by one gripping power supply device 6a, and rotated by the motor 17a to match the extraction speed of the ingot. The grip power supply device 6a is lowered by controlling the rotation of the screw shaft 14a. Then, before the gripping power supply device 6a reaches the lower end of its vertical stroke, the other gripping power supply device 6b is closed to grip the ingot 4, and the gripping power supply device 6b is connected to the motor 17.
The ingot 4 is lowered to match the extraction speed of the ingot 4 by the rotation of the screw shaft 14b whose rotation is controlled by the motor 17b synchronized with the ingot 4. The purpose of simultaneously gripping the pair of gripping devices for a period of time is not only for continuous drawing but also to continuously and stably conduct electricity to prevent arcing. Meanwhile, the gripping power supply device 6a releases its grip on the ingot 4 and rotates the screw shaft 14a in the reverse direction to raise the ingot 4 at the upper end of its vertical stroke. Then, before the grip power supply device 16b reaches the lower end of its vertical stroke, the grip power supply device 6a is made to grip the ingot 4 again and lowered in accordance with the extraction speed.
そしてその間にも他方の把持給電装置６ｂは把持を解い
て螺子軸１４ｂを逆転させ上昇させて上下ストロークの
上端にて時期させる。以下同様にこの二つの把持給電装
置６ａ、６ｂにて交互にインゴット４を把持して該イン
ゴット４をその抽出速度に合わせて間断なく下降させる
ものである。なお消耗電極３は適時必要に応じて交換さ
れる。During this time, the other grip power supply device 6b releases its grip, reverses the direction of the screw shaft 14b, raises it, and reaches the upper end of the vertical stroke. Similarly, the ingot 4 is alternately gripped by the two grip power supply devices 6a and 6b, and the ingot 4 is continuously lowered in accordance with the extraction speed. Note that the consumable electrode 3 is replaced as needed.
しかしてこの把持給電装置６ａ、６ｂはインゴット４を
開放した状態にて第３図に示したように給電刷子１９の
先端面１９′ が把持爪１１の先端面１１′より少し突
出している。そして流体圧シリンダ１３の作動でアーム
７．７を回転させインゴット４を把持したときは給電刷
子１９の先端面１９′はインゴット４の表面に皿バネ２
２の弾性によって圧着しさらに強力に流体圧シリンダＩ
３はアーム７．７を回転させるためインゴット４表面か
らの反力が皿バネ２２の弾性を抗して該給電刷子１９を
後退させる。However, in the gripping power feeding devices 6a, 6b, when the ingot 4 is opened, the tip end surface 19' of the power feeding brush 19 protrudes slightly from the tip surface 11' of the gripping claw 11, as shown in FIG. Then, when the arm 7.7 is rotated by the operation of the fluid pressure cylinder 13 and the ingot 4 is gripped, the distal end surface 19' of the power supply brush 19 is attached to the surface of the ingot 4 by the disc spring 2.
Pressure-bonded by the elasticity of 2, making it even more powerful
3 rotates the arm 7.7, so that the reaction force from the surface of the ingot 4 resists the elasticity of the disc spring 22 and causes the feeding brush 19 to retreat.
モして把持爪１１の先端面１１′ がインゴット４の表
面に該インゴットを支持するに必要な力で圧着するもの
である。The tip end surface 11' of the gripping claw 11 is pressed against the surface of the ingot 4 with a force necessary to support the ingot.
［発明の効果コ
このように本発明に係るインゴットの把持給電装置は、
インゴットの荷重を支持する硬質の把持爪と良導電性の
給電刷子とが別体に構成されており、給電刷子はバネに
よって常に一定の圧着でインゴットの表面に圧着するよ
うにしたので、そのインゴットへの通電に伴なう接触電
気抵抗が把持力によって大きく変ることなく通電状態を
安定化することができると共に、該給電刷子は一定の圧
着力でインゴット表面に圧着するのみでインゴットの荷
重は専ら硬質の把持爪に負荷させられるので給電刷子の
摩耗やその摩耗に伴なう圧着面の電気抵抗の増減がなく
なり安定した給電が可能となる。このため溶解の進行が
安定し所期の連続造塊が可能となる有益なものである。[Effects of the Invention] As described above, the ingot gripping power supply device according to the present invention has the following advantages:
The hard gripping claws that support the load of the ingot and the highly conductive power supply brush are constructed separately, and the power supply brush is always pressed against the surface of the ingot with a constant pressure by a spring, so that the ingot can be It is possible to stabilize the energization state without significantly changing the contact electrical resistance associated with energization due to the gripping force, and the power supply brush is only crimped to the ingot surface with a constant crimping force, so that the load on the ingot is solely Since the load is applied to the hard gripping claws, there is no abrasion of the power supply brush and no increase or decrease in electrical resistance of the crimping surface due to the abrasion, and stable power supply is possible. Therefore, the progress of melting is stabilized and the desired continuous agglomeration is possible, which is advantageous.
第１図は本発明の一実施例を示したエレクトロスラグ再
溶解炉の縦断面図、第２図はそのインゴット把持給電装
置の拡大平面図、第３図は第２図のＸ−Ｘ線断面拡大図
である。第４図および第５図は従来のエレクトロスラグ
再溶解炉の稼動方法の説明用略図である。
１・・・・水冷鋳型、３・・・・消耗電極、４・・・・
インゴット、６ａ、６ｂ・・・・把持給電装置、７・・
・・アーム、８・・・・支軸、９・・・・器枠、１０・
・・・枢着軸、１１・・・・把持爪、１３・・・・流体
圧シリンダ、１９・・・・給電刷子、２２・・・・皿バ
ネ。
特 許 出 順 人 大同特殊鋼株式会社遺書図
１１１４図
第５５！！１Fig. 1 is a longitudinal sectional view of an electroslag remelting furnace showing an embodiment of the present invention, Fig. 2 is an enlarged plan view of its ingot gripping power supply device, and Fig. 3 is a cross section taken along the line X-X of Fig. 2. This is an enlarged view. FIGS. 4 and 5 are schematic diagrams for explaining the operating method of a conventional electroslag remelting furnace. 1...Water-cooled mold, 3...Consumable electrode, 4...
Ingot, 6a, 6b... Gripping power supply device, 7...
... Arm, 8... Support shaft, 9... Instrument frame, 10.
... Pivot shaft, 11 ... Gripping claw, 13 ... Fluid pressure cylinder, 19 ... Power supply brush, 22 ... Disc spring. Patent Issue Order Person Daido Special Steel Co., Ltd. Will Figure 1114 Figure 55! ! 1
Claims (1)
成し該貫通孔に導電性の給電刷子を進退自在に配設し、
該給電刷子をその先端面が把持爪の先端面より突出する
ようにバネによつて付勢してなることを特徴とするエレ
クトロスラグ再溶解炉におけるインゴットの把持給電装
置。A through hole is formed in the center of the gripping claw pivotally supported at the tip of the arm, and a conductive power supply brush is arranged in the through hole so as to be freely advanced and retracted,
An ingot gripping power supply device for an electroslag remelting furnace, characterized in that the power supply brush is biased by a spring so that its tip end surface protrudes beyond the tip end surface of a gripping claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61145750A JPS634029A (en) | 1986-06-21 | 1986-06-21 | Electric power supply device for holding ingot in electroslag remelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61145750A JPS634029A (en) | 1986-06-21 | 1986-06-21 | Electric power supply device for holding ingot in electroslag remelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS634029A true JPS634029A (en) | 1988-01-09 |
Family
ID=15392288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61145750A Pending JPS634029A (en) | 1986-06-21 | 1986-06-21 | Electric power supply device for holding ingot in electroslag remelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS634029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2442935A (en) * | 2006-10-20 | 2008-04-23 | Certwood Ltd | Storage tray system |
-
1986
- 1986-06-21 JP JP61145750A patent/JPS634029A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2442935A (en) * | 2006-10-20 | 2008-04-23 | Certwood Ltd | Storage tray system |
| GB2442935B (en) * | 2006-10-20 | 2009-10-28 | Certwood Ltd | Storage tray system |
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