JPS59166356A - Prevention of freezing in continuous casting - Google Patents
Prevention of freezing in continuous castingInfo
- Publication number
- JPS59166356A JPS59166356A JP4115183A JP4115183A JPS59166356A JP S59166356 A JPS59166356 A JP S59166356A JP 4115183 A JP4115183 A JP 4115183A JP 4115183 A JP4115183 A JP 4115183A JP S59166356 A JPS59166356 A JP S59166356A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- spout
- continuous casting
- casting
- burner
- 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
- 238000009749 continuous casting Methods 0.000 title claims description 12
- 238000007710 freezing Methods 0.000 title description 2
- 230000008014 freezing Effects 0.000 title description 2
- 230000002265 prevention Effects 0.000 title 1
- 238000005266 casting Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 12
- 239000000567 combustion gas Substances 0.000 claims abstract description 7
- 239000011261 inert gas Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 abstract description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052786 argon Inorganic materials 0.000 abstract description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はベルトキャスタータイプの連続鋳造におけるフ
レージング（ｆｒｅｅｚｉｎｇ ）防止方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing freezing in belt caster type continuous casting.
特に本発明は、ベルトキャスタータイプの連続鋳造槽に
よって鋼材等を連続鋳造する際に、注湯口先端部分に鋳
伺きの発生を防止する方法に関する。In particular, the present invention relates to a method for preventing the occurrence of cracks at the tip of a pouring spout when continuously casting steel materials or the like using a belt caster type continuous casting tank.
ベルトキャスタータイプの連続鋳造機により鋼材等を連
続する場合に、その注湯口先端部分は周囲の雰囲気によ
り自然冷却されているために溶湯の一部が鋳付き、これ
が徐々に成長して大きなフレージングとなる。このフレ
ーノングは通常注賜口矢端部分雰囲気が空気であるだめ
に空気中の酸素により酸化されている。このようなフレ
ーノングの除去を機械的に行えば、フレージングが溶湯
中に治下し、完全には溶解されることなく凝固し、部分
的に高濃度の酸素を含有する鋳造材となる。When a belt caster type continuous casting machine is used to continuously cast steel materials, the tip of the pouring spout is naturally cooled by the surrounding atmosphere, so some of the molten metal sticks to it and gradually grows, resulting in large phrasing. Become. Since the atmosphere at the tip of the spout is usually air, this flane tongue is oxidized by oxygen in the air. If such franging is removed mechanically, the franging subsides into the molten metal and solidifies without being completely melted, resulting in a cast material that partially contains a high concentration of oxygen.
この鋳造材を再溶解して再鋳造しても、この鋳造法は冷
却スピードが速いので十分な拡散が行われず、部分的に
高濃度の酸素を含有する鋳造材となる。また、フレージ
ングを溶解除去しても、その溶解されたフレージングの
溶湯は高濃度の酸素を含有し、かつ、前記したように、
この鋳造法の冷却スピードが速いために十分な拡散が行
われず、部分的に高濃度の酸素を含有する鋳造材となる
。Even if this cast material is remelted and recast, sufficient diffusion will not occur due to the fast cooling speed of this casting method, resulting in a cast material that partially contains a high concentration of oxygen. Furthermore, even if the phrasing is dissolved and removed, the molten metal of the dissolved phrasing contains a high concentration of oxygen, and as described above,
Due to the fast cooling speed of this casting method, sufficient diffusion does not occur, resulting in a cast material that partially contains a high concentration of oxygen.
このような鋳造材を連続圧延して荒引線にし、更に伸線
機で線引きした場合には、この、４！］濃度酸素部分が
機械的にもろいために断線が発生し、著しい生産性の低
下をきだす。When such a cast material is continuously rolled into a rough drawn wire and further drawn using a wire drawing machine, this 4! ] Because the oxygen-concentrated part is mechanically fragile, wire breakage occurs, resulting in a significant drop in productivity.
本発明の目的は上部の如き欠点を生ずることがないよう
にフレーノングの発生を防止する方法を提供することに
ある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for preventing the occurrence of flaring without causing defects such as the upper part.
本発明の池の目的は組成が均一で欠陥のない鋳造材を得
る鋳造方法を提供することにある。It is an object of the present invention to provide a casting method that yields a cast material of uniform composition and free of defects.
本発明の更に他の目的は、高品質の荒引線を与えること
ができるような均質な鋳造材の鋳造方法を提供するにあ
る。Still another object of the present invention is to provide a method for casting a homogeneous cast material that can provide a high quality rough wire.
上記の目的は本発明によって達成される。すなわち、本
発明は、ベルトキャスタータイプの連続鋳造を行うに際
し、鋳造機の注湯口部分を不活性ガス又は還元性ガスに
て被覆することを特徴とする連続鋳造におけるフレーノ
ング防止方法である。The above objects are achieved by the present invention. That is, the present invention is a method for preventing flaring in continuous casting, which is characterized in that when carrying out belt caster type continuous casting, the spout portion of the casting machine is coated with an inert gas or a reducing gas.
以下、図面を参照しつつ本発明を説明する。The present invention will be described below with reference to the drawings.
第１図はベルトキャストタイプの鋳造機による連続鋳造
の１実施例を示す説明図である。図において、１はリン
グモールド、２は無端ベルト、３は注入容器、４はス・
ξウド、５はホイールである。FIG. 1 is an explanatory view showing one embodiment of continuous casting using a belt cast type casting machine. In the figure, 1 is a ring mold, 2 is an endless belt, 3 is an injection container, and 4 is a spout.
ξ and 5 are wheels.
溶湯を、注入容器３に設けられたス・ξつｌ−４の先端
すなわち注湯口部分からリングモールド１と無端ベルト
２が形成する鋳型に注入し、冷却装置７によって冷却し
て凝固する。得られた鋳造材は鋳造・く−８としてピン
チロール９から製品として取出される。The molten metal is injected into the mold formed by the ring mold 1 and the endless belt 2 from the tip of the spout 4 provided in the injection container 3, that is, the pouring port, and is cooled and solidified by the cooling device 7. The obtained cast material is taken out as a product from pinch rolls 9 as a casting machine 8.
本発明においては、このような連続鋳造において、湯口
部分を不活性ガス又は還元ガスにて被覆することを特徴
としている。本発明の１実施態様を示すために、第１図
のＡで示す部分を拡大して第２図に示す。すなわち、こ
の実施例においては、鋳造時に、ス・ξウド４の先端部
分をガスバーナー６によって加熱し、同時にスパウト先
端部分をバーナー６の燃焼ガス１０で完全に被覆する。The present invention is characterized in that in such continuous casting, the sprue portion is covered with an inert gas or a reducing gas. In order to illustrate one embodiment of the present invention, the portion indicated by A in FIG. 1 is shown in FIG. 2 on an enlarged scale. That is, in this embodiment, during casting, the tip of the spout 4 is heated by the gas burner 6, and at the same time, the tip of the spout is completely covered with the combustion gas 10 of the burner 6.
なお、この場合、バーナー６の燃焼ガスは一酸化炭素を
０．５〜１０％含有するように燃焼管理されていること
が好ましい。In this case, it is preferable that the combustion gas of the burner 6 is controlled to contain 0.5 to 10% carbon monoxide.
また、上記の如きバーナーからの燃焼ガスを用いる代り
に、加熱された窒素ガス、アルゴンガス等の不活性ガス
を用いスパウトの先端部分と被覆してもよい。Further, instead of using the combustion gas from the burner as described above, heated inert gas such as nitrogen gas or argon gas may be used to coat the tip of the spout.
以上のように、本発明によって、不活性ガス又は還元性
ガスによって注湯口部分であるス・ξウドの先端部分を
完全に被覆することにより鋳付きの発生や溶湯の空気に
よる酸化を防止することができ、均質で欠陥のない鋳造
材を得ることができる。As described above, the present invention prevents the occurrence of casting and oxidation of molten metal by air by completely covering the tip of the spout, which is the pouring port, with an inert gas or reducing gas. It is possible to obtain a homogeneous and defect-free cast material.
すなわち、本発明方法により製造される鋳造品は酸素濃
度が均一で、フレージングに起因する高酸素濃度部分が
ない。このために、鋳造圧延される荒引線は、以後の伸
線工程における線引き時の断線事故の減少に効果を上げ
、生産性の向上に寄与している。That is, the cast product produced by the method of the present invention has a uniform oxygen concentration and is free of high oxygen concentration areas caused by phrasing. For this reason, the cast-rolled rough drawn wire is effective in reducing wire breakage accidents during wire drawing in the subsequent wire drawing process, contributing to improved productivity.
４４、図面の簡単な説明
第１図はベルトキャスｊ・タイプの鋳造機による連続鋳
造の１例を示す説明図、第２図は本発明が第１図の装置
に適用された１例を示す、第１図におけるＡの部分の拡
大図である。44. Brief description of the drawings Fig. 1 is an explanatory diagram showing an example of continuous casting using a belt caster type casting machine, and Fig. 2 shows an example in which the present invention is applied to the apparatus shown in Fig. 1. , is an enlarged view of part A in FIG. 1;
Claims (3)
際し、鋳造機の注湯口部分を不活性、ガス又は還元性ガ
スにて被覆することを特徴とする連続鋳造におけるフレ
ージング防止方法。(1) A method for preventing phrasing in continuous casting, which is characterized in that when carrying out belt caster type continuous casting, the spout of the casting machine is coated with an inert, gas, or reducing gas.
し注湯口部分を被覆する特許請求の範囲第（１）項に記
載のフレー、ノング防止方法。(2) The method for preventing flaking and nongluing according to claim (1), wherein an inert gas or a reducing gas is supplied as hot air to cover the pouring port.
特許請求の範囲第（１）項に記載の連続鋳造におけるフ
レージング防止方法。(3) The method for preventing phrasing in continuous casting according to claim (1), wherein the reducing gas is combustion gas from a gas burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115183A JPS59166356A (en) | 1983-03-11 | 1983-03-11 | Prevention of freezing in continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115183A JPS59166356A (en) | 1983-03-11 | 1983-03-11 | Prevention of freezing in continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59166356A true JPS59166356A (en) | 1984-09-19 |
Family
ID=12600416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4115183A Pending JPS59166356A (en) | 1983-03-11 | 1983-03-11 | Prevention of freezing in continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166356A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035772A1 (en) * | 1997-02-14 | 1998-08-20 | Voest-Alpine Industrieanlagenbau Gmbh | How to avoid contact between oxygen and molten metal |
| JP2020157351A (en) * | 2019-03-27 | 2020-10-01 | 住友電気工業株式会社 | Method for producing casting material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592259A (en) * | 1978-12-28 | 1980-07-12 | Hitachi Seisen Kk | Continuous production of low oxygen copper wire |
| JPS5736046A (en) * | 1980-08-15 | 1982-02-26 | Kikai Syst Shinko Kyokai | Continuous casting method |
-
1983
- 1983-03-11 JP JP4115183A patent/JPS59166356A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592259A (en) * | 1978-12-28 | 1980-07-12 | Hitachi Seisen Kk | Continuous production of low oxygen copper wire |
| JPS5736046A (en) * | 1980-08-15 | 1982-02-26 | Kikai Syst Shinko Kyokai | Continuous casting method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035772A1 (en) * | 1997-02-14 | 1998-08-20 | Voest-Alpine Industrieanlagenbau Gmbh | How to avoid contact between oxygen and molten metal |
| JP2001524880A (en) * | 1997-02-14 | 2001-12-04 | ヴォエスト−アルピーネ インデュストリーアンラーゲンバウ ゲーエムベーハー | Method of preventing molten metal from contacting oxygen |
| US6443220B1 (en) | 1997-02-14 | 2002-09-03 | Voest-Alpine Industrieanlagenbau Gmbh | Method of preventing contact of oxygen with a metal melt |
| JP2020157351A (en) * | 2019-03-27 | 2020-10-01 | 住友電気工業株式会社 | Method for producing casting material |
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