JPS6343750A - Sealing method for molten metal in shifting mold type continuous casting - Google Patents
Sealing method for molten metal in shifting mold type continuous castingInfo
- Publication number
- JPS6343750A JPS6343750A JP18776886A JP18776886A JPS6343750A JP S6343750 A JPS6343750 A JP S6343750A JP 18776886 A JP18776886 A JP 18776886A JP 18776886 A JP18776886 A JP 18776886A JP S6343750 A JPS6343750 A JP S6343750A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- mold
- molten metal
- injection nozzle
- molten
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 title claims abstract description 6
- 238000009749 continuous casting Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 10
- 239000000843 powder Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 238000005266 casting Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 230000009545 invasion Effects 0.000 abstract 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000010953 base metal Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0645—Sealing means for the nozzle between the travelling surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、移動鋳型式連続υ、ｊ造機の溶融金属ソー
ル方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a molten metal sole method for a moving mold type continuous υ,j making machine.
各々、無端状に連結した複数個のブロックからなる無端
軌道の上下の支持体と、上下の支持体と同様なブロック
からなる無端軌道の左右の支持体又は金属ベルトからな
る無端軌道の左右の支持体とによって構成される、連続
鋳造用移動式鋳型が知られている。The upper and lower supports of the endless track are each made of a plurality of blocks connected in an endless manner, and the left and right supports of the endless track are made of blocks similar to the upper and lower supports, or the left and right supports of the endless track are made of metal belts. A mobile mold for continuous casting is known.
第２図は、このような移動式鋳型を備えた移動鋳型式連
続鋳造機の１例を示す概略正面図である。FIG. 2 is a schematic front view showing an example of a moving mold type continuous casting machine equipped with such a moving mold.
第２図において、１は移動鋳型式連続鋳造機２の移動式
鋳型、３は移動式鋳型１の１部を構成する無端軌道の上
下の支持体である。支持体３は無端状に連結した複数個
のブロック３ａからなっておｐ、上下に所定間隔をおい
て長手方向に傾斜して、配置されている。上下の支持体
３はそれぞれ１対のスフ０ロケツト４に掛は廻され、１
対のスプロケット４の】方に設けられた図示しない駆動
装置によって回転駆動されるようになっている。上下の
支持体３の側方には、上下の支持体３によって形成され
た空間（鋳型空間）の側面を塞ぐ、図示しない無端軌道
の左右の支持体が近接して配置されており、上下の支持
体３と共に、鉛直面内で長手方向に傾斜した移動式鋳型
１を構成している。In FIG. 2, reference numeral 1 designates a mobile mold of a mobile mold type continuous casting machine 2, and 3 designates upper and lower supports of an endless track that constitute a part of the mobile mold 1. The support body 3 is composed of a plurality of blocks 3a connected in an endless manner and arranged vertically at predetermined intervals and inclined in the longitudinal direction. The upper and lower supports 3 are each hooked around a pair of suf0 rockets 4, and 1
It is designed to be rotationally driven by a drive device (not shown) provided on the opposite side of the pair of sprockets 4. Left and right supports of an endless track (not shown) are arranged close to the sides of the upper and lower supports 3 to close the sides of the space (mold space) formed by the upper and lower supports 3. Together with the support 3, it constitutes a movable mold 1 inclined longitudinally in a vertical plane.
左右の支持体は上下の支持体３と同様な無端状に連結さ
れた複数個のブロックからなっており、上下の支持体３
と同様、それぞれ１対のスプロケットに掛は廻されて、
１対のスプロケットの１方に設けられた駆動装置によっ
て回転駆動されるようになっている。上下の支持体３と
左右の支持体とは、＠型空間を構成する部分が鋳型１の
上流側から下流側へ向けて同速度で移動するように、回
転駆動される。The left and right supports are composed of a plurality of blocks connected in an endless manner similar to the upper and lower supports 3, and the upper and lower supports 3
Similarly, each hook is rotated around a pair of sprockets,
It is rotatably driven by a drive device provided on one of a pair of sprockets. The upper and lower supports 3 and the left and right supports are rotationally driven so that the parts forming the @ mold space move at the same speed from the upstream side to the downstream side of the mold 1.
鋳型１の溶鋼入口端ｌａ内には、タンデイツシュ５の側
壁下部に取付けた溶鋼注入用ノズル６の下流側が挿入さ
れている。タンデイツシュ５内の溶鋼７は注入用ノズル
６を通って鋳型１内に注入され、鋳型Ｊ内で鋳片８の凝
固シェルが形成される。そして、鋳型１を構成する上下
の支持体３等の移動速度と同速度で、鋳型１円から鋳片
８がピンチロール９によって引抜かれ、鋳片８が連続的
に鋳造される。Into the molten steel inlet end la of the mold 1, the downstream side of a molten steel injection nozzle 6 attached to the lower side wall of the tundish 5 is inserted. The molten steel 7 in the tundish 5 is injected into the mold 1 through the injection nozzle 6, and a solidified shell of the slab 8 is formed in the mold J. Then, the slab 8 is pulled out from the mold by the pinch rolls 9 at the same speed as the moving speed of the upper and lower supports 3, etc. that constitute the mold 1, and the slab 8 is continuously cast.
ところで、移動鋳型式連続鋳造機２では、鋳型１を構成
する上下の支持体３、左右の支持体が移動することから
、これら支持体と注入ノズル６との間の隙間が狭いと、
これら支持体のブロック３ａ等の表面の凹凸、ブロック
３ａ等の振動、注入ノズル６自体の熱膨張、撓み等によ
って支持体が注入ノズル６に接触したときに、注入用ノ
ズル６の損傷につながる。逆に、上下の支持体３．左右
の支持体と注入用ノズル６との間の隙間が広すぎると、
その隙間に鋳型１内の溶鋼が侵入して地金を形成するの
で、これら移動する支持体の地金との接触により注入ノ
ズル６に負荷が加わり、同様に注入用ノズル６の損傷に
つながる。また、地金の形成が原因して、鋳片８の表面
性状が悪化する。By the way, in the moving mold type continuous casting machine 2, since the upper and lower supports 3 and the left and right supports that constitute the mold 1 move, if the gap between these supports and the injection nozzle 6 is narrow,
When the support comes into contact with the injection nozzle 6 due to irregularities on the surface of the block 3a, etc. of the support, vibration of the block 3a, etc., thermal expansion or bending of the injection nozzle 6 itself, the injection nozzle 6 may be damaged. Conversely, the upper and lower supports 3. If the gap between the left and right supports and the injection nozzle 6 is too wide,
Since the molten steel in the mold 1 enters the gap and forms a base metal, a load is applied to the injection nozzle 6 due to contact with the base metal of these moving supports, which similarly leads to damage to the injection nozzle 6. Furthermore, the surface quality of the slab 8 deteriorates due to the formation of the base metal.
この発明は、上述の現状に鑑み、注入用ノズルと移動式
鋳型の支持体との間に鋳型内の溶融金属が侵入するのを
防止して、注入用ノズルが損傷されるのを防ぎ、且つ１
表面性状の良好な鋳片を鋳造することを可能とした、移
動鋳型式連続鋳造機の牌融金膨ソール方法を提供するこ
とを目的とするものである。In view of the above-mentioned current situation, this invention prevents the molten metal in the mold from entering between the injection nozzle and the support of the movable mold, thereby preventing the injection nozzle from being damaged. 1
It is an object of the present invention to provide a method for melting and expanding soles of a moving mold type continuous casting machine, which makes it possible to cast slabs with good surface properties.
この発明の、移動鋳型式連続鋳造機の溶融金属シール方
法は、移動鋳型式連続鋳造機の無端軌道の支持体によっ
て構成される移動式鋳型の溶融金属入口端内に挿入され
た、溶融金属注入用ノズルと前記支持体との間に、粉末
パウダーをパイプで導いて供給することにより、前記注
入用ノズルの下流側端部およびこれに近接した前記支持
体の表面との間に前記粉末パウダーの溶融層を形成して
、前記溶融層により前記注入用ノズルの下流側端部と前
記支持体との間をシールし、前記鋳型内の溶融金属が侵
入するのを防止したことに特徴を有するものである。The molten metal sealing method for a moving mold continuous casting machine of the present invention comprises a method for injecting molten metal inserted into the molten metal inlet end of a mobile mold constituted by an endless track support of a moving mold continuous casting machine. By supplying the powder between the injection nozzle and the support through a pipe, the powder can be transferred between the downstream end of the injection nozzle and the surface of the support adjacent to the downstream end of the injection nozzle. The mold is characterized in that a molten layer is formed, and the molten layer seals between the downstream end of the injection nozzle and the support, thereby preventing the molten metal in the mold from entering. It is.
以下、この発明の、移動鋳型式連続鋳造機の溶融金にソ
ール方法を１図面に基づき詳述する。EMBODIMENT OF THE INVENTION Hereinafter, the sole method for molten metal in a moving mold type continuous casting machine according to the present invention will be described in detail with reference to one drawing.
第１図は、この発明のシール方法の］実施態様を示す説
明図である。FIG. 1 is an explanatory diagram showing an embodiment of the sealing method of the present invention.
第１図において、１０は移動鋳型式連続鋳造機の移動式
鋳型、１１は鋳型１０の溶鋼入口端１０ａ内に挿入され
た溶鋼注入用ノズル、１２は粉末パウダー供給用パイプ
である。注入用ノズル１１の下流側端部１１ａは、注入
用ノズル１１を鋳型１０の溶鋼入口端１０ａ内に挿し易
くし、且つ、鋳型１０を構成する無端軌道の支持体１３
のブロック１３ａとの間の隙間を小さくするために、外
方に突出した形状としである。供給用パイプ１２は注入
用ノズル１１と支持体１３との間に挿入され、その１端
が注入用ノズル１１の例えば下流側端部１１ａの手前直
近に位置されている。供給用パイプ１２の他端は図示し
ないパウダー圧送装置に接続されている。In FIG. 1, 10 is a moving mold of a moving mold type continuous casting machine, 11 is a molten steel injection nozzle inserted into the molten steel inlet end 10a of the mold 10, and 12 is a powder supply pipe. The downstream end 11a of the injection nozzle 11 makes it easy to insert the injection nozzle 11 into the molten steel inlet end 10a of the mold 10, and supports the endless track support 13 that constitutes the mold 10.
In order to reduce the gap between the block 13a and the block 13a, it is shaped to protrude outward. The supply pipe 12 is inserted between the injection nozzle 11 and the support body 13, and one end thereof is located immediately before the downstream end 11a of the injection nozzle 11, for example. The other end of the supply pipe 12 is connected to a powder pumping device (not shown).
この実施態様の方法では、このような供給用ｉＲイブ１
２を通って焼付き防止用等の粉末パウダーを圧送によシ
導き、粉末パウダーを注入用ノズルＪ】と鋳型１０の支
持体］３との間に供給して、支持体］３の移動により粉
末パウダーを鋳型１．０内に移送させる。そして、これ
によって注入用ノズルの下流側端面および下流側端部に
近接した支持体１３のブロック１３ａの表面との間に、
粉末パウダーの溶融層１４を形成させる。従って、粉末
パウダーの溶融層］４によって注入用ノズル］１の下流
側端部１１ａと支持体１３との間がシールされ、鋳型１
０内の溶鋼がこれらの間に侵入するのが防止される。こ
のため、溶鋼の侵入による地金の形成を防げるから、こ
れら移動する支持体１３により注入用ノズル１１が損傷
されることがなく、寸だ、良好な表面性状の鋳片を鋳造
することができる。In the method of this embodiment, such a supply iRive 1
Powder for anti-seizing, etc. is fed under pressure through 2, and the powder is supplied between the injection nozzle J] and the support body 3 of the mold 10, and by the movement of the support body 3. Transfer the powder powder into mold 1.0. As a result, between the downstream end face of the injection nozzle and the surface of the block 13a of the support body 13 close to the downstream end,
A molten layer 14 of powder powder is formed. Therefore, the molten layer of powder [4] seals between the downstream end 11a of the injection nozzle [1] and the support 13, and the mold 1
The molten steel within 0 is prevented from entering between these spaces. This prevents the formation of bare metal due to the intrusion of molten steel, so the injection nozzle 11 is not damaged by these moving supports 13, and slabs with extremely good surface quality can be cast. .
この発明のシール方法によれば、移動式鋳型の支持体と
注入用ノズルとの間に鋳型内の溶融金属が侵入するのを
防止でき、従って、溶融金属の侵入による地金の形成を
防いで、移動する支持体によって注入用ノズルが損傷さ
れるの金（方正でき、且つ、表面性状の良好な鋳片を鋳
造することが可能となる。According to the sealing method of the present invention, it is possible to prevent molten metal in the mold from entering between the support of the mobile mold and the injection nozzle, thereby preventing the formation of bare metal due to the intrusion of molten metal. This makes it possible to correct the problem of the injection nozzle being damaged by the moving support, and to cast slabs with good surface properties.
Claims (1)
される移動式鋳型の溶融金属入口端内に挿入された、溶
融金属注入用ノズルと前記支持体との間に、粉末パウダ
ーをパイプで導いて供給することにより、前記注入用ノ
ズルの下流側端面およびこれに近接した前記支持体の表
面との間に前記粉末パウダーの溶融層を形成して、前記
溶融層により前記注入用ノズルの下流側端部と前記支持
体との間をシールし、前記鋳型内の溶融金属が侵入する
のを防止したことを特徴とする、移動鋳型式連続鋳造機
の溶融金属シール方法。Powder powder is inserted into the molten metal inlet end of a mobile mold constituted by an endless track support of a continuous moving mold casting machine, between a nozzle for injecting molten metal and the support. A molten layer of the powder is formed between the downstream end face of the injection nozzle and the surface of the support adjacent to the downstream end face of the injection nozzle, and the molten layer causes the injection nozzle to flow. A method for sealing molten metal in a moving mold type continuous casting machine, characterized in that the space between the downstream end and the support is sealed to prevent molten metal in the mold from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776886A JPS6343750A (en) | 1986-08-12 | 1986-08-12 | Sealing method for molten metal in shifting mold type continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776886A JPS6343750A (en) | 1986-08-12 | 1986-08-12 | Sealing method for molten metal in shifting mold type continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6343750A true JPS6343750A (en) | 1988-02-24 |
Family
ID=16211870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18776886A Pending JPS6343750A (en) | 1986-08-12 | 1986-08-12 | Sealing method for molten metal in shifting mold type continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6343750A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371578A (en) * | 1991-06-21 | 1994-12-06 | Minolta Camera Kabushiki Kaisha | Image forming apparatus including means for removing counter charged toner from the charging means |
-
1986
- 1986-08-12 JP JP18776886A patent/JPS6343750A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371578A (en) * | 1991-06-21 | 1994-12-06 | Minolta Camera Kabushiki Kaisha | Image forming apparatus including means for removing counter charged toner from the charging means |
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