JPS6343751A - Molten metal pouring nozzle for shifting mold type continuous casting - Google Patents
Molten metal pouring nozzle for shifting mold type continuous castingInfo
- Publication number
- JPS6343751A JPS6343751A JP18776986A JP18776986A JPS6343751A JP S6343751 A JPS6343751 A JP S6343751A JP 18776986 A JP18776986 A JP 18776986A JP 18776986 A JP18776986 A JP 18776986A JP S6343751 A JPS6343751 A JP S6343751A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- mold
- molten steel
- injection nozzle
- continuous casting
- 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 description 15
- 238000009749 continuous casting Methods 0.000 title claims description 14
- 238000005470 impregnation Methods 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000005350 fused silica glass Substances 0.000 abstract description 2
- 230000009545 invasion Effects 0.000 abstract description 2
- 230000000630 rising effect 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 2
- 235000012633 Iberis amara Nutrition 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000463 material Substances 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
- B22D11/0642—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、移動鋳型式連続鋳造用溶融金年注人ノズル
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 pourer nozzle for continuous casting of a moving mold type.
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」−下の支持体と、」ユ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ロ：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 bottom support of the endless track is made up 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 bottom supports, and the bottom supports are made of metal belts. A mobile mold for continuous casting is known, which is constituted by left and right supports of an endless track.
第２図は、このような移動式υｊ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Ｎである。FIG. 2 is a schematic front view N showing an example of a moving mold type continuous casting machine equipped with such a moving type υj 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］の］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ψＭｉ状に連結した複
数個のン゛ロック３ａからなっており、−に下に所定間
隔をおいて長手方向に傾斜［〜で配置されている。」二
下の支持体３はそれぞれ１対のスプロケット４に掛は廻
され、１対のスプロケット４の１方に設けられた図示（
７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Ｊ−
って形成さカフた空間（Ｊｆ型空間）の０１１ｊ面を塞
ぐ１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 denotes a movable mold of a movable mold type continuous casting machine 2, and 3 denotes upper and lower supports of an endless track constituting the section of the movable mold. The support body 3 is made up of a plurality of locks 3a connected in a shape with no ψMi, and arranged downwardly at a predetermined interval and inclined in the longitudinal direction. '' The two lower supports 3 are each hooked around a pair of sprockets 4, and the two lower supports 3 are connected to one of the pair of sprockets 4 (
It is designed to be rotationally driven by a drive device that does not have 7 parts. On the sides of the upper and lower supports 3, J-
The left and right supports of an endless track (not shown) that close the 011j plane of the cuffed space (Jf type space) formed by It constitutes an inclined mobile mold 1.
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対のスフ０ロケツトに掛は廻されて
、１対のスジロケットの１方に設けられた１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、鋳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, the hooks are rotated by a pair of Suji rockets, respectively, and are driven to rotate by a driving device provided on one of the pair of Suji rockets. 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］ａ内には、タンディツシュ５の側
壁下部に取付けた溶鋼注入ノズル６の下流側が挿入され
ている。タンディツシュ５内の溶鋼７は注入ノズル６を
通って鋳！！Ｉｌ内に注入され。The downstream side of a molten steel injection nozzle 6 attached to the lower side wall of the tundish 5 is inserted into the molten steel inlet end]a of the mold 1. The molten steel 7 in the tundish 5 passes through the injection nozzle 6 and is cast! ! Injected into Il.
鋳型１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」二下の支持体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。A solidified shell of the slab 8 is formed in the mold 1 . and,
The slab 8 is pulled out from the mold 1 by pinch rolls 9 at the same speed as the moving speed of the two lower supports 3, etc. that constitute the mold 1, and the slab 8 is continuously cast.
ととるで、移動鋳型式連続鋳造機２では、鋳型■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、プ「１ツ
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
の支持体と注入ノス゛ル６との間の隙間が広すきる七、
その隙間にυｊ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、同様に注入ノズル６の損傷に
つながる。捷だ、地金の形成が原因して、υＪ片８の表
面性状が悪化する。Therefore, in the moving mold continuous casting machine 2, the upper and lower supports 3 and the left and right supports that make up the mold (3) move, so if the gap between these supports and the injection nozzle 6 is narrow,
The injection nozzle 6 may be damaged when the support comes into contact with the injection nozzle 6 due to irregularities on the surface of the blocks 3a, etc. of the support, vibration of the block 3a, etc., thermal expansion or bending of the injection nozzle 6 itself, etc. On the contrary, the gaps between the upper and lower supports 3, the left and right supports, and the injection nozzle 6 are wide.
Since the molten steel in the υj mold 1 enters the gap and forms a base metal, a load is applied to the injection nozzle 6 due to the contact of these moving supports with the base metal, which similarly leads to damage to the injection nozzle 6. Unfortunately, the surface quality of υJ piece 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、注入ノズルが損傷されるのを防ぎ、且つ、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
型式連続鋳造用溶融金属注入ノズル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, and preventing the injection nozzle from being damaged. This made it possible to cast slabs with good properties. The object of the present invention is to provide a molten metal injection nozzle for continuous casting using a moving mold.
この発明は、無端軌道の支持体によって構成される連続
鋳造用移動式鋳型の溶融金属入口端と、タンディツシュ
の側壁下部との間に配置される、移動鋳型式連続鋳造用
溶融金属注入ノズルにおいて、
前記注入ノズルの下流側端部の壁内に、前記壁の外面か
らタール含浸処理を施したことに特徴を有するものであ
る。The present invention provides a molten metal injection nozzle for continuous casting of a moving mold type, which is disposed between the molten metal inlet end of a mobile mold for continuous casting constituted by an endless track support and the lower side wall of a tundish. The present invention is characterized in that a tar impregnating treatment is applied to the wall of the downstream end of the injection nozzle from the outer surface of the wall.
以下、この発明の、移動鋳型式連続鋳造用溶融金属注入
ノズルを、図面に基づき詳述する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The molten metal injection nozzle for continuous casting using a moving mold according to the present invention will be described in detail below with reference to the drawings.
第１図は、この発明の注入ノズルの１実施態様の要部を
示す垂直縦断面図である。FIG. 1 is a vertical longitudinal sectional view showing essential parts of one embodiment of the injection nozzle of the present invention.
第１図に示されるように、この実施態様の注入ノズル］
０は、移動式鋳型１１を構成する無端軌道の支持体１２
のブロック１．２ ａと注入ノズル】０との間に、鋳型
１１内の溶鋼が侵入するのを防止するために、その下流
側端部の壁１３内に壁１３の外向からタール含浸処理を
施しである。下流側端部の壁Ｊ３等のノズル］０の壁は
、溶融シリカ、アルミナ・グラフアイ等のｌ大物からな
っている。As shown in FIG. 1, the injection nozzle of this embodiment]
0 is an endless track support body 12 that constitutes a mobile mold 11
In order to prevent the molten steel in the mold 11 from entering between the block 1.2a and the injection nozzle 0, a tar impregnation treatment is applied to the wall 13 at the downstream end from the outside of the wall 13. It is alms. The wall at the downstream end of the nozzle such as J3 is made of a large material such as fused silica or alumina graphite.
下流側端部の壁Ｊ３は、注入ノズル１０を鋳型］■の溶
鋼入口端］、Ｊ ａ内に挿入し易くし、且つ、支持体１
２のブロック１．２ ａとの間の隙間を小さくするため
に、夕を方に突出した形状としである。The wall J3 at the downstream end facilitates insertion of the injection nozzle 10 into the molten steel inlet end of the mold, Ja, and supports the support 1.
In order to reduce the gap between the block 1.2a and the block 1.2a, it is shaped so as to protrude toward the evening.
従って、以」二のような注入ノズル１０では、鋳型Ｊ１
の溶鋼入口端］ １− ａ内に注入ノズル１０を挿入し
て、その内孔］４を通って鋳型ｌｌ内に溶鋼を注入する
際に、溶鋼の熱による温度上昇に伴ない、下流側端部の
壁１３内のタールが壁１３の外面に浸み出て、壁１３の
外面にタール層］５を形成する。このため、溶鋼に対す
る壁１３の外面の濡れ性が小さくなるので、壁１３と鋳
型１１の支持体１２のブロック１．２ ａとの間に、鋳
型１］内の溶鋼が侵入するのを防止できる。従って、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］２により注入ノズル１０が損傷されることが
なく、また、良好な表面性状の鋳片を鋳造することがで
きる。Therefore, in the injection nozzle 10 as described below, the mold J1
When inserting the injection nozzle 10 into 1-a and injecting the molten steel into the mold 1 through the inner hole] 4, as the temperature rises due to the heat of the molten steel, the downstream end The tar in the wall 13 of the section seeps out to the outer surface of the wall 13, forming a tar layer]5 on the outer surface of the wall 13. Therefore, the wettability of the outer surface of the wall 13 with respect to molten steel is reduced, so it is possible to prevent the molten steel in the mold 1 from entering between the wall 13 and the block 1.2a of the support 12 of the mold 11. . Therefore, since the formation of bare metal due to the intrusion of molten steel is prevented, the injection nozzle 10 is not damaged by these moving supports [2], and a slab with good surface quality can be cast.
この発明の注入ノズルによれば、移動式鋳型の支持体と
注入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ノズルが損傷される
のを防止でき、且つ、表面性状の良好な鋳片全鋳造する
ことが可能となる。According to the injection nozzle of the present invention, it is possible to prevent the molten metal in the mold from entering between the support of the movable mold and the injection nozzle, thereby preventing the formation of bare metal due to the invasion of the molten metal. It is possible to prevent the injection nozzle from being damaged by the moving support, and to fully cast a slab with good surface properties.
第１図は、この発明の注入ノズルの１実施態様の要部を
示す垂直縦断面図、第２図は、移動鋳型式連続鋳造機の
１例を示す概略説明図である。図面において、
］０・・・注入ノズル １１・・・移動式鋳型１、１
． ａ・・・溶鋼入口端 １２・・・無端軌道の支持
体１２ａ・・・ブロック １３・・下流側端部の壁
１４・・・内孔 １５・・・タール層。FIG. 1 is a vertical cross-sectional view showing a main part of an embodiment of the injection nozzle of the present invention, and FIG. 2 is a schematic explanatory view showing an example of a moving mold type continuous casting machine. In the drawings, ]0... Injection nozzle 11... Mobile molds 1, 1
．． a... Molten steel inlet end 12... Endless track support 12a... Block 13... Downstream end wall 14... Inner hole 15... Tar layer.
Claims (1)
鋳型の溶融金属入口端と、タンデイツシユの側壁下部と
の間に配置される、移動鋳型式連続鋳造用溶融金属注入
ノズルにおいて、 前記注入ノズルの下流側端部の壁内に、前記壁の外面か
らタール含浸処理を施したことを特徴とする、移動鋳型
式連続鋳造用溶融金属注入ノズル。[Claims] A mobile mold type continuous casting molten metal disposed between the molten metal inlet end of the continuous casting mobile mold constituted by an endless track support and the lower side wall of a tundish. A molten metal injection nozzle for moving mold continuous casting, characterized in that a wall at a downstream end of the injection nozzle is subjected to tar impregnation treatment from the outer surface of the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776986A JPS6343751A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mold type continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776986A JPS6343751A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mold type continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6343751A true JPS6343751A (en) | 1988-02-24 |
Family
ID=16211888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18776986A Pending JPS6343751A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mold type continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6343751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141345A (en) * | 1991-04-15 | 1992-08-25 | Citizen Watch Co., Ltd. | Sheet discharge apparatus for printer |
| JP2008044142A (en) * | 2006-08-11 | 2008-02-28 | Ricoh Printing Systems Ltd | Dot line printer |
-
1986
- 1986-08-12 JP JP18776986A patent/JPS6343751A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141345A (en) * | 1991-04-15 | 1992-08-25 | Citizen Watch Co., Ltd. | Sheet discharge apparatus for printer |
| JP2008044142A (en) * | 2006-08-11 | 2008-02-28 | Ricoh Printing Systems Ltd | Dot line printer |
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