JPH0373381B2 - - Google Patents
Info
- Publication number
- JPH0373381B2 JPH0373381B2 JP18776786A JP18776786A JPH0373381B2 JP H0373381 B2 JPH0373381 B2 JP H0373381B2 JP 18776786 A JP18776786 A JP 18776786A JP 18776786 A JP18776786 A JP 18776786A JP H0373381 B2 JPH0373381 B2 JP H0373381B2
- Authority
- JP
- Japan
- Prior art keywords
- injection nozzle
- mold
- continuous casting
- inner cylinder
- molten metal
- 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.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 238000009749 continuous casting Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000011819 refractory material Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000035939 shock Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 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)
- Continuous Casting (AREA)
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属注
入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 injection nozzle for continuous casting using a moving mold.
無端状に連結した複数個のブロツクからなる無
端軌道の支持体によつて、あるいはこれと無端状
の金属ベルトからなる無端軌道の支持体とによつ
て構成される、連続鋳造用移動式鋳型が知られて
いる。
A mobile mold for continuous casting is constituted by an endless track support consisting of a plurality of blocks connected in an endless manner, or by an endless track support consisting of this and an endless metal belt. Are 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例を示す概略説明図であ
る。 FIG. 2 is a schematic explanatory diagram 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ツク３ａからなつて
おり、上下に所定間隔で配置されている。上下の
支持体３はそれぞれ１対のスプロケツト４に掛け
廻され、１対のスプロケツト４の１方に設けられ
た図示しない駆動装置によつて回転駆動されるよ
うになつている。上下の支持体３の側方には、上
下の支持体３によつて形成された空間（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、移動式鋳型１を構成している。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
れた複数個のブロツクからなつており、上下の支
持体３と同様、それぞれ１対のスプロケツトに掛
け廻されて、１対のスプロケツトの１方に設けら
れた駆動装置によつて回転駆動されるようになつ
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。 In Fig. 2, 1 is a moving mold continuous casting machine 2.
3 are upper and lower supports of an endless track forming a part of the mobile mold 1. The support body 3 consists of a plurality of blocks 3a connected in an endless manner, and are arranged vertically at predetermined intervals. The upper and lower supports 3 are each hung around a pair of sprockets 4, and are rotationally driven by a drive device (not shown) provided on one of the pair of sprockets 4. On the sides of the upper and lower supports 3, left and right supports of an endless track (not shown) are arranged close to each other and close the sides of the space (mold space) formed by the upper and lower supports 3. Together with the upper and lower supports 3, a movable mold 1 is configured. The left and right supports are made up of a plurality of blocks connected in an endless manner similar to the upper and lower supports 3, and, like the upper and lower supports 3, are each hung around a pair of sprockets and connected to a pair of sprockets. It is designed to be rotationally driven by a drive device provided on one side of the sprocket. 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１ａ内には、タンデイツシ
ユ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。タンデイツシユ５内の溶
鋼７は注入ノズル６を通つて鋳型１内に注入さ
れ、鋳型１内で鋳片８の凝固シエルが形成され
る。そして、鋳型１を構成する上下の支持体３等
の移動に合わせて、鋳型１内から鋳片８がピンチ
ロール９によつて引抜かれ、鋳片８が連続的に鋳
造される。 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 1a of the mold 1. Molten steel 7 in tundish 5 is injected into mold 1 through injection nozzle 6, and a solidified shell of slab 8 is formed within mold 1. Then, in accordance with the movement of the upper and lower supports 3 and the like constituting the mold 1, the slab 8 is pulled out from within the mold 1 by the pinch rolls 9, 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の特性上、鋳型空間を広くすることが困難であ
り、鋳造する鋳片８の厚みは20〜50mmと薄い。こ
のため、注入ノズル６としては、寸法的に、鋳片
８の厚み等に相応して、鋳片８の厚み方向に20〜
50mmと薄肉、且つ、鋳片８の幅方向に300〜1200
mmと広幅で、長さも500〜1500mmと長尺なものが
要求される。また、注入ノズル６には、寸法精度
が例えば±0.05mm程度と高いこと、機械的強度が
大きいこと、熱衝撃に強いこと、耐溶損性が大き
いこと、熱膨張率や熱伝導率が低く、蓄熱率が大
きいこと等の材質特性を備えることが要求されて
いる。 By the way, in the moving mold type continuous casting machine 2, it is difficult to widen the mold space due to the characteristics of the mold 1, and the thickness of the slab 8 to be cast is as thin as 20 to 50 mm. For this reason, the injection nozzle 6 has dimensions of 20 to 20 mm in the thickness direction of the slab 8, depending on the thickness of the slab 8.
Thin wall of 50mm, and 300 to 1200 in width direction of slab 8
It is required to have a wide width of 500 mm and a long length of 500 to 1500 mm. In addition, the injection nozzle 6 has high dimensional accuracy of, for example, about ±0.05 mm, high mechanical strength, high resistance to thermal shock, high erosion resistance, low coefficient of thermal expansion and low thermal conductivity, It is required to have material properties such as a high heat storage rate.
しかしながら、従来は、注入ノズル６を耐火物
のみから形成していたので、薄肉、長尺、広幅等
の寸法的条件を満足し、且つ、寸法精度、機械的
強度等の特性を満足したものを得ることが困難で
あり、仮にこれら寸法的条件等を満足できても、
注入ノズル６の価格が極めて高価になるという難
点があつた。 However, conventionally, the injection nozzle 6 has been formed only from refractory material, so it is necessary to use a nozzle that satisfies dimensional conditions such as thin wall, long length, and wide width, and also satisfies characteristics such as dimensional accuracy and mechanical strength. It is difficult to obtain, and even if these dimensional conditions etc. can be satisfied,
A disadvantage was that the injection nozzle 6 was extremely expensive.
この発明は、上述の現状に鑑み、薄肉、長尺、
広幅等の寸法的条件を満足させ、且つ、寸法精
度、機械的強度等の特性を満足させることを容易
にできるようにした、構成が簡単で安価な、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 has been developed to
A molten metal injection nozzle for continuous casting using a moving mold, which is simple in construction and inexpensive, and which satisfies dimensional conditions such as wide width, as well as characteristics such as dimensional accuracy and mechanical strength. The purpose is to provide the following.
この発明は、無端軌道の支持体によつて構成さ
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、
前記注入ノズルは、上流側が内張耐火物からな
り下流側が定形耐火物からなる内筒と、前記下流
側の端部を除く前記内筒の外面に設けられた、金
属からなる外筒とで構成されることを特徴を有す
るものである。
This invention provides a molten metal inlet end of a mobile mold for continuous casting constituted by an endless track support body;
It is placed between the lower part of the side wall of the tandate.
In a molten metal injection nozzle for continuous casting using a moving mold, the injection nozzle has an inner cylinder whose upstream side is made of a lined refractory and whose downstream side is made of a shaped refractory, and an outer surface of the inner cylinder except for the downstream end. It is characterized in that it is comprised of an outer cylinder made of metal.
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
を示す垂直縦断面図である。 FIG. 1 is a vertical longitudinal sectional view showing 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１０は、耐火物製の内筒１１と金属製の外
筒１２とからなつている。内筒１１は上流側１３
と下流側１４とに分けられており、下流側１４の
下流側端部１４ａは、移動式鋳型１５の溶鋼入口
端１５ａ内に注入ノズル１０を挿入し易くし、且
つ、鋳型１５を構成する無端軌道の支持体１６の
ブロツク１６ａ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てある。内筒１１の
下流側１４は、寸法精度を高くして支持体１６の
ブロツク１６ａとの間の隙間等の精度を保たせる
ために、材質的に寸法精度を高くできる定形耐火
物から形成してある。定形耐火物としては、溶融
シリカ、アルミナ・グラフアイト、窒化硅素、窒
化ボロン等の耐火物が掲げられる。内筒１１の上
流側１３は、下流側１４程寸法精度を要求しなく
てよいから、内張耐火物にて形成してある。内張
耐火物としては、セラミツクス・ボード、アルミ
ナ、マグネシア、炭化硅素、黒鉛等が掲げられ
る。外筒１２は注入ノズル１０全体に強度を持た
せるためのもので、鋼製等の筒からなつている。
外筒１２は突出した下流側端部１４ａを除く内筒
１１の外面に設けられている。 As shown in FIG. 1, the injection nozzle 10 of this embodiment consists of an inner cylinder 11 made of refractory material and an outer cylinder 12 made of metal. The inner cylinder 11 is on the upstream side 13
and a downstream side 14, and the downstream end 14a of the downstream side 14 facilitates insertion of the injection nozzle 10 into the molten steel inlet end 15a of the movable mold 15, and the endless end portion 14a constituting the mold 15. In order to reduce the gap between the track support 16 and the block 16a, it is shaped to protrude outward. The downstream side 14 of the inner cylinder 11 is made of a shaped refractory material that can have high dimensional accuracy in order to increase the dimensional accuracy and maintain the accuracy of the gap between it and the block 16a of the support body 16. be. Examples of shaped refractories include refractories such as fused silica, alumina graphite, silicon nitride, and boron nitride. The upstream side 13 of the inner cylinder 11 does not require as much dimensional accuracy as the downstream side 14, so it is formed of a refractory lining. Examples of the refractory lining include ceramic board, alumina, magnesia, silicon carbide, and graphite. The outer cylinder 12 is provided to give strength to the entire injection nozzle 10, and is made of a cylinder made of steel or the like.
The outer cylinder 12 is provided on the outer surface of the inner cylinder 11 except for the protruding downstream end 14a.
この実施態様の注入ノズル１０は、以上のよう
に、耐火物製の内筒１１と金属製の外筒１２とか
ら構成したので、注入ノズル１０を、機械的強度
や耐熱衝撃性、耐溶損性等が大で、且つ、薄肉、
長尺、広幅等としたものに容易にできる。また、
寸法精度の要求される内筒１１の下流側１４を定
形耐火物にて形成したので、注入ノズル１０を必
要な寸法精度を確保したものにでき、且つ、安価
に製作できる。 As described above, the injection nozzle 10 of this embodiment is composed of the inner cylinder 11 made of refractory material and the outer cylinder 12 made of metal, so that the injection nozzle 10 has good mechanical strength, thermal shock resistance, and erosion resistance. etc. are large and thin,
It can be easily made into long, wide, etc. Also,
Since the downstream side 14 of the inner cylinder 11, which requires dimensional accuracy, is formed of a shaped refractory, the injection nozzle 10 can secure the necessary dimensional accuracy and can be manufactured at low cost.
この発明によれば、薄肉、長尺、広幅等の寸法
的条件を満足し、且つ、寸法精度や機械的強度、
耐熱衝撃性等の特性を満足した、構成が簡単で安
価な、移動鋳型式連続鋳造用溶融金属注入ノズル
を得られる。
According to this invention, dimensional conditions such as thin wall, long length, and wide width are satisfied, and dimensional accuracy, mechanical strength,
It is possible to obtain a molten metal injection nozzle for continuous casting using a moving mold, which satisfies properties such as thermal shock resistance, has a simple structure, and is inexpensive.
第１図は、この発明の注入ノズルの１実施態様
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、
１０……注入ノズル、１１……内筒、１２……
外筒、１３……上流側、１４……下流側、１４ａ
……下流側端部、１５……移動式鋳型、１５ａ…
…溶鋼入口端、１６……無端軌道の支持体、１６
ａ……ブロツク。
FIG. 1 is a vertical cross-sectional view showing one 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, 10... Injection nozzle, 11... Inner cylinder, 12...
Outer cylinder, 13...Upstream side, 14...Downstream side, 14a
...Downstream end, 15...Movable mold, 15a...
... Molten steel inlet end, 16 ... Endless track support, 16
a... Block.
Claims (1)
造用移動式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、 前記注入ノズルは、上流側が内張耐火物からな
り下流側が定形耐火物からなる内筒と、前記下流
側の端部を除く前記内筒の外面に設けられた、金
属からなる外筒とで構成されることを特徴とす
る、移動鋳型式連続鋳造用溶融金属注入ノズル。[Scope of Claims] 1. A mobile mold for continuous casting disposed between the molten metal inlet end of the mobile mold for continuous casting constituted by an endless track support and the lower side wall of the tundish. In the metal injection nozzle, the injection nozzle includes an inner cylinder whose upstream side is made of a lined refractory and whose downstream side is made of a shaped refractory, and an inner cylinder made of metal provided on the outer surface of the inner cylinder except for the downstream end. A molten metal injection nozzle for continuous casting using a moving mold, characterized by comprising an outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776786A JPS6343749A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mole type continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18776786A JPS6343749A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mole type continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6343749A JPS6343749A (en) | 1988-02-24 |
| JPH0373381B2 true JPH0373381B2 (en) | 1991-11-21 |
Family
ID=16211853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18776786A Granted JPS6343749A (en) | 1986-08-12 | 1986-08-12 | Molten metal pouring nozzle for shifting mole type continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6343749A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0720681A (en) * | 1993-07-06 | 1995-01-24 | Nec Corp | Electrifier |
| JPH07146601A (en) * | 1993-11-25 | 1995-06-06 | Sharp Corp | Image forming device |
| JP3553791B2 (en) | 1998-04-03 | 2004-08-11 | 株式会社ルネサステクノロジ | CONNECTION DEVICE AND ITS MANUFACTURING METHOD, INSPECTION DEVICE, AND SEMICONDUCTOR ELEMENT MANUFACTURING METHOD |
-
1986
- 1986-08-12 JP JP18776786A patent/JPS6343749A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6343749A (en) | 1988-02-24 |
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