JPS63290655A - Twin roll type continuous casting machine - Google Patents
Twin roll type continuous casting machineInfo
- Publication number
- JPS63290655A JPS63290655A JP12365987A JP12365987A JPS63290655A JP S63290655 A JPS63290655 A JP S63290655A JP 12365987 A JP12365987 A JP 12365987A JP 12365987 A JP12365987 A JP 12365987A JP S63290655 A JPS63290655 A JP S63290655A
- Authority
- JP
- Japan
- Prior art keywords
- rolls
- roll
- side dam
- continuous casting
- metal plate
- 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.)
- Granted
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 238000001816 cooling Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005266 casting Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract 2
- 239000011819 refractory material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process 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】
（産業上の利用分野〕
本発明は溶湯から直接的に薄板、を連続鋳造するための
双ロール式連鋳機の改善に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an improvement in a twin-roll continuous casting machine for continuously casting thin plates directly from molten metal.
互いに反対方向に回転する一対の内部冷却ロールを適当
な間隙をあけて平行に対向配置し、この間隙上部のロー
ル円周面上に湯溜りを形成させ。A pair of internal cooling rolls that rotate in opposite directions are arranged parallel to each other with an appropriate gap between them, and a pool is formed on the circumferential surface of the rolls above the gap.
この湯溜り中の湯を回転するロール円周面で冷却しなが
ら、該間隙を経て薄板に連続鋳造する双ロール式連鋳機
が知られている。このような双ロール式連鋳機を綱の連
鋳に適用して、溶鋼から薄鋼板を直接製造しようとする
提案もなされている。A twin-roll type continuous casting machine is known that continuously casts the hot water in the pool into a thin plate through the gap while cooling the hot water on the circumferential surface of the rotating rolls. There has also been a proposal to apply such a twin-roll continuous casting machine to continuous casting of steel to directly produce thin steel sheets from molten steel.
ロール対の間隙から薄板連鋳品を常時連続的に送り出す
にはロール対の間隙の上部に溶鋼の湯溜りを形成し９
この湯溜りに溶鋼を連続注入することが必要となるが、
この湯溜りをロール円周面上に形成するには、鋳造され
る薄板の幅方向への湯の流れを規制するダムが必要とな
る。このダムは通常は鋳片の幅を規制する役割を果たし
、しだがって、鋳片の両縁を規制すべく対をなした二つ
の固定壁からなる。このダムをサイドダムと呼ぶ。In order to continuously feed thin plate castings from the gap between the pair of rolls, a pool of molten steel is formed above the gap between the pair of rolls9.
It is necessary to continuously inject molten steel into this pool,
In order to form this pool on the circumferential surface of the roll, a dam is required to restrict the flow of hot water in the width direction of the thin plate to be cast. This dam usually serves to restrict the width of the slab, and therefore consists of two fixed walls paired to restrict the edges of the slab. This dam is called a side dam.
また、ロール円周面上に容量の大きな湯溜りを形成する
ためには、対をなす各ロール円周面上に。In addition, in order to form a large-capacity water reservoir on the circumferential surface of the rolls, it is necessary to form a pool on the circumferential surface of each pair of rolls.
各ロールの軸に沿った固定壁を立ち上げることもある。Fixed walls may be erected along the axis of each roll.
しかし、径の大きなロールを使用する場合にはこのロー
ル軸に沿う壁を設けなくてもロール円周面自身がこの壁
の役割を果たし、サイドダムだけで湯溜り容器を形成す
ることも可能である。However, when using a roll with a large diameter, the circumferential surface of the roll itself plays the role of this wall without providing a wall along the roll axis, and it is also possible to form a reservoir with just the side dam. .
いずれにしても、サイドダムを設けないと、ロール円周
面上に注入される湯のロール軸方向（鋳片の幅方向）へ
の流れを規制できず、従って鋳片幅を一定にした仮の連
続鋳造が困難となる。 。In any case, unless a side dam is provided, the flow of hot water injected onto the circumferential surface of the roll in the roll axis direction (width direction of the slab) cannot be regulated. Continuous casting becomes difficult. .
この対をなすサイドダムの設置方式としては。As for the installation method of this pair of side dams.
対向するサイドダム間の距離をロール幅（ロール軸に沿
ったロール円周面の長さ）よりも小さくする場合と、ロ
ール幅一杯にする場合とがある。前者の場合には１両サ
イドダムがロール円周面上に立ち上げて設置されること
になり、後者の場合には９両サイドダムはロールを外側
（サイド與）から挟むようにして設置されるのが通常で
ある。いずれにしても２両サイドダムは少なくともその
内側は保温性を有する材質で構成し、湯溜り内の溶湯の
温度低下やサイドダム内壁面での凝固殻の形成を防止す
ることが必要である。There are cases where the distance between opposing side dams is smaller than the roll width (the length of the roll circumferential surface along the roll axis), and cases where the distance is made to be the full width of the roll. In the former case, a 1-car side dam is installed standing up on the circumferential surface of the roll, and in the latter case, a 9-car side dam is usually installed so as to sandwich the roll from the outside (side edge). It is. In any case, it is necessary that at least the inside of the two-side dam be made of a material that has heat retention properties to prevent the temperature of the molten metal in the pool from decreasing and the formation of a solidified shell on the inner wall surface of the side dam.
（発明が解決しようとする問題点３
両サイドダムをロール円周面に立ち上げる設置方式では
１回転するロール円周面とサイドダムの底面が摺接する
ことになるので、この摺接部でのシールが問題となる。(Problem 3 to be solved by the invention) In the installation method in which both side dams are raised on the roll circumferential surface, the roll circumferential surface that rotates once comes into sliding contact with the bottom surface of the side dam, so the seal at this sliding contact area is It becomes a problem.
一般に、双ロール法では双ロール間で鋳造される板に多
少の圧下をかけるためにその圧着負荷によって、さらに
は熱膨張によって、ロール表面の偏平度（真円度）が部
分的に低下し、操業中に若干の凹凸が不可避的に生ずる
ことがある。この場合にはサイドダムの底部とロール円
周面との間に隙間が生しることになる。また、サイドダ
ムは保温性と回転ロールに対する回転抵抗を同時に満足
する材質であることが必要であるが２例えば保温性のよ
いセラミックファイバー等を使用する場合にはその機械
的強度が十分に保証され得ないという問題がある０例え
ば、サイドダム底面とロール円周面との間のシールの完
全性を図った場合にも、その摺接抵抗によって操業中に
サイドダムが破壊することがある。特にロールギャップ
近傍まで延び出したサイドダムの先端部が破壊され易い
、また一対のサイドダムの間の距離によって設定される
薄板の幅が、摺動部に差し込んだ溶湯のはみ出しによっ
て幅広となると言った問題もある。In general, in the twin roll method, the flatness (roundness) of the roll surface partially decreases due to the pressure applied to the plate cast between the twin rolls and also due to thermal expansion. Some unevenness may inevitably occur during operation. In this case, a gap will be created between the bottom of the side dam and the circumferential surface of the roll. In addition, the side dam must be made of a material that simultaneously satisfies heat retention and rotational resistance against the rotating roll.2 For example, when using ceramic fiber with good heat retention, its mechanical strength cannot be sufficiently guaranteed. For example, even if the seal between the bottom surface of the side dam and the circumferential surface of the roll is ensured, the sliding resistance may cause the side dam to break during operation. In particular, the tip of the side dam that extends to the vicinity of the roll gap is easily destroyed, and the width of the thin plate, which is determined by the distance between the pair of side dams, becomes wider due to the protrusion of the molten metal inserted into the sliding part. There is also.
（問題点を解決するための手段）
本発明は、互いに反対方向に回転する一対の内部冷却ロ
ールを平行に対向配置し、このロール対の円周面上に湯
溜りを形成させるための一対のサイドダムを、その底部
が回転ロールの円周面と摺接するようにロール円周面上
に設置し、該湯溜りの湯を該ロール対の間隙を経て薄板
に連続鋳造する双ロール弐連鋳機において、該サイドダ
ムの底部とロール円周面との摺接部に金属板を配置した
ことを特徴とする。(Means for Solving the Problems) The present invention includes a pair of internal cooling rolls that rotate in opposite directions and are arranged in parallel to face each other, and a pair of internal cooling rolls that are configured to form a pool on the circumferential surface of the pair of rolls. A twin-roll continuous casting machine in which a side dam is installed on the circumferential surface of a rotating roll so that its bottom part is in sliding contact with the circumferential surface of the rotating roll, and hot water from the pool is continuously cast into a thin plate through the gap between the pair of rolls. A metal plate is disposed at the sliding contact portion between the bottom of the side dam and the circumferential surface of the roll.
すなわち本発明者らは、ロール円周面に向けてサイドダ
ムに所定の押圧を与えた状態で、このサイドダムをロー
ル円周面上に立ち上げて設置する場合に２両者の摺接部
に金属板を介装させるという構成を採用するならば、前
記の問題点の実質上全てが解決されることを見い出した
。そのさい。That is, the present inventors have proposed that when installing the side dam upright on the roll circumferential surface while applying a predetermined pressure to the side dam toward the roll circumferential surface, a metal plate is attached to the sliding contact portion between the two. It has been found that substantially all of the above-mentioned problems can be solved by adopting a configuration in which a At that time.
金属板はサイドダムとロール円周面との間にｉ離した状
態で、つまり、サイドダムにもロール円周面にも接着さ
せない状態で介装させることができる。介装させる金属
板は、サイドダムがロール円周面と接する面積（サイド
ダムの底部面積）の実質上全てを覆う面積をもたせる。The metal plate can be interposed between the side dam and the circumferential surface of the roll at a distance of i, that is, without being bonded to either the side dam or the circumferential surface of the roll. The interposed metal plate has an area that covers substantially all of the area where the side dam contacts the roll circumferential surface (bottom area of the side dam).
使用する金属板としては、耐熱性の金属からなる薄板２
例えばステンレス鋼の薄板を使用するのがよい。最も好
ましいＢ様では５両方のロールの円周面と接するように
サイドダムの全底面を一枚の金属板で覆うような使用の
仕方をする。そして、金属板にロールの回転方向とは逆
の方向に張力を付与しておく。The metal plate used is a thin plate 2 made of heat-resistant metal.
For example, a thin plate of stainless steel may be used. In the most preferred method B, the entire bottom surface of the side dam is covered with one metal plate so as to be in contact with the circumferential surfaces of both rolls. Then, tension is applied to the metal plate in a direction opposite to the rotational direction of the roll.
また金属板と接するサイドダムの底部を弾力性耐火物層
１例えばセラミンクファイバー製ウール等で構成してお
く。Further, the bottom of the side dam in contact with the metal plate is made of an elastic refractory layer 1, such as wool made of ceramic fiber.
以下に図面に従って本発明の装置を具体的に説明する。The apparatus of the present invention will be specifically explained below with reference to the drawings.
第１図において、ｌａ、ｌｂは互いに反対方向（矢印の
方向）に回転するように対向配置した一対の内部冷却ロ
ール、２はこのロールｌａ、ｌｂの円周面上に形成させ
た湯溜り内の溶湯、 ３ａ、３ｂはサイドダム、４は鋳
造されるＦｉ ＋１を示している。サイドダム３．ａ、
３ｂはロールｌａ、 ｌｂの円周面Ｒの上に設置され、
従ってこの対をなすサイドダム３ａと３ｂの間の距離は
ロール幅より短くなっている。サイドダム３ａ、３ｂに
は、ロールＩａ、ｌｂの円周面に向けて一様な押圧が加
わるように垂直下方に向けて圧力が加えられる。本発明
においては、かような双ロール式連鋳機において、サイ
ドダム３ａ、３ｂの底面゛がロールｌａ、 ｌｂの円周
面と摺接する部分に金属板５ａ。In Fig. 1, la and lb are a pair of internal cooling rolls arranged opposite each other so as to rotate in opposite directions (in the direction of the arrows), and 2 is a pool formed on the circumferential surface of the rolls la and lb. 3a and 3b are side dams, and 4 indicates Fi +1 to be cast. Side dam 3. a,
3b is installed on the circumferential surface R of rolls la and lb,
Therefore, the distance between the pair of side dams 3a and 3b is shorter than the roll width. Pressure is applied vertically downward to the side dams 3a and 3b so that uniform pressure is applied toward the circumferential surfaces of the rolls Ia and lb. In the present invention, in such a twin-roll continuous casting machine, metal plates 5a are provided at the portions where the bottom surfaces of the side dams 3a, 3b come into sliding contact with the circumferential surfaces of the rolls la, lb.
５ｂを介装する。5b is inserted.
第２図に、この金属板５の介装状態を図解的に示す。本
例では一つのサイドダム３に対して一枚の連続した金属
板５が使用されており、この金属板５の幅はサイドダム
底面の幅に相当し、金属板５の長さはサイドダム３の底
面の全摺接長さよりも長いものが使用されている。より
具体的には。FIG. 2 schematically shows the interposed state of this metal plate 5. In this example, one continuous metal plate 5 is used for one side dam 3, the width of this metal plate 5 corresponds to the width of the bottom of the side dam, and the length of the metal plate 5 corresponds to the bottom of the side dam 3. A length longer than the total sliding contact length is used. More specifically.
サイドダム３は１両方のロールと摺接する三箇所の曲面
部と１両者の曲面部の中間下方に位置する下縁部（ロー
ル間の最狭隙部より若干上方に位置するロール円周面に
は摺接しない下縁部）とを。The side dam 3 has three curved surfaces that come into sliding contact with both rolls, and a lower edge located midway down between the curved surfaces (1) on the roll circumferential surface located slightly above the narrowest gap between the rolls. (lower edge that does not make sliding contact).
その底面に存するが、この両画面部の長さと下縁部の長
さの合計よりも長い一枚の連続した金属板５を使用し、
サイドダム３とロールｌａ、 ｌｂとの間にこの金属板
５を介装した場合に、金属板５の両端が外部に露出する
ような関係をもってセットされる。そして、セットされ
た後は、この外部に露出した部分を互いに反対方向、つ
まりロール１ ａ 、 ’１ｂの回転方向とは逆の方向
にに引張応力を加えた状態で稼働する。一方、サイドダ
ム３には既述のようにロールｌａ、 ｌｂの方向（垂直
下向きの方向）に所定の圧力を加えてお（。Although it exists on the bottom surface, a continuous metal plate 5 that is longer than the sum of the length of both screen parts and the length of the lower edge is used,
When this metal plate 5 is interposed between the side dam 3 and the rolls la and lb, it is set in such a relationship that both ends of the metal plate 5 are exposed to the outside. After being set, the rollers are operated with tensile stress applied to the externally exposed portions in opposite directions, that is, in the direction opposite to the rotational direction of the rolls 1a and '1b. On the other hand, as mentioned above, a predetermined pressure is applied to the side dam 3 in the direction of the rolls la and lb (vertical downward direction).
第３図はこの状態を図解的に示した部分断面図である。FIG. 3 is a partial sectional view schematically showing this state.
サイドダム３に対しては１図示しない手段によって矢印
のように垂直下方に向かう押圧を加え、金属板５は矢印
のようにロールの回転方向とは逆の方向に引張応力を加
えておく、これによって、サイドダム３とロール円周面
との間には金属板５がその隙間を緊密に埋めた状態で存
在することになる。例えば５〜１０ｋｇｆ／ｃｍ”程度
の引張り応力をロール回転方向とは逆の方向に向けて該
金属板５に掛けておき、サイドダム３に対する垂直下方
への圧縮応力もこれに見合う程度かこれより若干大きく
かけておくのがよい。A vertical downward pressure is applied to the side dam 3 as shown by the arrow by a means not shown, and a tensile stress is applied to the metal plate 5 in the direction opposite to the direction of rotation of the roll as shown by the arrow. The metal plate 5 is present between the side dam 3 and the circumferential surface of the roll, tightly filling the gap therebetween. For example, a tensile stress of about 5 to 10 kgf/cm" is applied to the metal plate 5 in the opposite direction to the roll rotation direction, and a vertically downward compressive stress to the side dam 3 is also applied to the same level or slightly more. It is better to keep it large.
第４図はこの摺接部の拡大断面を示したものである。金
属板５はロールの円周面と緊密に接した状態で摺接する
ことになる。しかし、サイドダム３と金属板５との間に
は熱膨張、ロールそのものの変形などによってロールｌ
ａ、 ｌｂ裏表面形状変化が生じることから、サイドダ
ム３の底面部には弾力性耐火物を取付けてお（のがよい
、第４図に示す例では２弾力性耐火物の層６を耐熱性接
着剤７ａによってサイドダムの耐火物３に接合し、金属
板５の側にも耐熱性接着剤７ｂを介在させて弾力性耐火
物のＮ６を金属板５に接合した構造を示している０弾力
性耐火物６としては既述のようにセラミックファイバー
製ウール等を使用する。この弾力性耐火物６の存在によ
りロール円周面に対して金属板５が弾力をもって摺接す
ることになるので。FIG. 4 shows an enlarged cross section of this sliding contact portion. The metal plate 5 comes into close sliding contact with the circumferential surface of the roll. However, due to thermal expansion, deformation of the roll itself, etc., the roll l
a, lb Since the shape of the back surface may change, it is recommended to attach an elastic refractory to the bottom of the side dam 3. In the example shown in Fig. 4, the layer 6 of elastic refractory is 0 elasticity shows a structure in which the elastic refractory N6 is bonded to the refractory 3 of the side dam with an adhesive 7a, and the elastic refractory N6 is bonded to the metal plate 5 with a heat-resistant adhesive 7b interposed on the side of the metal plate 5. As described above, ceramic fiber wool or the like is used as the refractory 6. Due to the presence of the elastic refractory 6, the metal plate 5 comes into sliding contact with the roll circumferential surface with elasticity.
隙間の発生を効果的に防止することができる。また、サ
イドダムの耐火物に無理な応力が加わることが吸収され
るのでサイドダム耐人物の破損が防止できる。The generation of gaps can be effectively prevented. Further, since excessive stress applied to the side dam refractories is absorbed, damage to the side dam refractories can be prevented.
このようにして本発明によると、熱膨張によるロールｌ
ａ、 ｌｂ裏表面変形が生じても、またロールｌａ、
ｌｂの円周面上に形成した凝固殻をロールギャップ間で
圧着するさいに掛かる圧縮応力によってロールｌａ、
ｌｂの表面に若干の変形が生じても（通常±０．５ｍｍ
程度の変形が不可避的に生じる）、この変形によるサイ
ドダムとの間の隙間は金属板の追従した変形によって塞
がれ、また弾力性耐火物による弾性的な作用も加わって
、その隙間の発生が効果的に防止される。したがって、
サイドダムとロール円周面との間からの場の差し込みが
防止されると共に、サイドダム耐火物の寿命を飛躍的に
増大させることができる。また、従来その強度の点から
使用不可能であった耐火物でもサイドダム耐火物として
本発明では使用可能となり、双ロール式連鋳機による薄
板の直接製造に大きく貢献するものである。Thus, according to the invention, the roll l due to thermal expansion
Even if deformation occurs on the back surface of a, lb, roll la,
The compressive stress applied when the solidified shell formed on the circumferential surface of lb is compressed between the roll gaps causes the roll la to
Even if there is slight deformation on the surface of the lb (usually ±0.5 mm)
The gap between the side dam and the side dam due to this deformation is closed by the following deformation of the metal plate, and the elastic action of the elastic refractory is also added, preventing the gap from forming. effectively prevented. therefore,
Insertion of field from between the side dam and the roll circumferential surface is prevented, and the life of the side dam refractory can be dramatically increased. In addition, the present invention makes it possible to use refractories that could not be used conventionally due to their strength as side dam refractories, which greatly contributes to the direct production of thin plates using a twin-roll continuous caster.
以下に第１図のように構成した本発明装置の稼動例を挙
げる。An example of operation of the apparatus of the present invention configured as shown in FIG. 1 will be given below.
［稼動例］
ｏ−ルｌａ＋１ｂとして、直径８００ｍｍ、 胴長６
００ｍｍの軟鋼製双ロールを用いた。板厚設定２ｍｍ、
板幅設定５００Ｉ、鋳造速度２５〜５０ｍ／ｍｉｎにて
ステンレス鋼５ＵＳ３０４の鋳造を行った。サイドダム
３を構成する耐火物材料としてはＡ ｊ！ １０３ ＋
Ｓ ｉ Ｏｚ系セラミックファイバーボード（厚さ５
０ｍｍ）を３弾力性耐火物６としては、ＡＮｚ０３＋Ｓ
ｔｏｗ系セラミックファイバー製ウール（幅はサイドダ
ム３の厚みに等しい５０■、厚さ１ ｍｍ）を、そして
、金属板５としては５ＵＳ３１６の薄板（幅はサイドダ
ム３の厚みに等しい５０■、厚さは０．１ｍｓ＋）であ
る、なお。[Example of operation] O-ru la + 1b, diameter 800 mm, body length 6
00 mm twin rolls made of mild steel were used. Plate thickness setting 2mm,
Stainless steel 5US304 was cast at a plate width setting of 500 I and a casting speed of 25 to 50 m/min. The refractory material that makes up the side dam 3 is A j! 103 +
S i Oz ceramic fiberboard (thickness 5
0mm) as 3 elastic refractory 6, ANz03+S
Tow type ceramic fiber wool (width: 50 cm, thickness equal to the thickness of the side dam 3, thickness: 1 mm) was used, and as the metal plate 5, a thin plate of 5US316 (width: 50 cm, thickness equal to the thickness of the side dam 3, thickness: 0.1ms+).
装置稼働中はロール円周面と金属板の摺動部となるロー
ル表面側に二硫化モリブデン油を潤滑の目的で塗付した
。During operation of the device, molybdenum disulfide oil was applied to the roll surface side, which is the sliding part between the roll circumference and the metal plate, for the purpose of lubrication.
約５０ｍの薄板が製造されるまで鋳造を行なった後、サ
イドダム３３弾力性耐火物６および金属板５の状況を観
察したが、鋳造開始時と同様の形態を保ち損傷は見られ
なかった。また、溶湯が摺動部へ浸入した形跡もみられ
なかった。そして製造された薄板の形状も良好であった
。After casting was carried out until a thin plate of approximately 50 m was manufactured, the side dam 33, elastic refractory 6, and metal plate 5 were observed, but they remained in the same form as at the start of casting and no damage was observed. Furthermore, there was no evidence that molten metal had penetrated into the sliding parts. The shape of the manufactured thin plate was also good.
第１図は本発明に従う双ロール式連鋳機の全体の概観を
示す斜視図、第２図は本発明に従うサイドダムの形状と
その底面に配置する金属板の設置状況を説明するための
斜視図、第３図はサイドダムとその底部に配置する金属
板の関係を示す部分断面図、第４図は第３図のＡ部の拡
大断面図である。
ｌａ、 ｌｂ・・内部冷却ロール、 ２・・湯溜り中
の溶湯、 ３ａ、３ｂ・・サイドダム、 ４・・鋳
造された薄板、 ５ａ、５ｂ・・金属板、 ６・・
弾力性耐火物、 ７ａ、７ｂ ・・耐熱性接着剤。
第１図
第３図Fig. 1 is a perspective view showing the overall appearance of a twin roll continuous casting machine according to the present invention, and Fig. 2 is a perspective view illustrating the shape of the side dam according to the invention and the installation situation of the metal plate placed on the bottom surface of the side dam. , FIG. 3 is a partial sectional view showing the relationship between the side dam and the metal plate disposed at its bottom, and FIG. 4 is an enlarged sectional view of section A in FIG. 3. la, lb...internal cooling roll, 2...molten metal in the pool, 3a, 3b...side dam, 4...cast thin plate, 5a, 5b...metal plate, 6...
Elastic refractories, 7a, 7b...heat-resistant adhesives. Figure 1 Figure 3
Claims (3)
を平行に対向配置し、このロール対の円周面上に湯溜り
を形成させるための一対のサイドダムを、その底部が回
転ロールの円周面と摺接するようにロール円周面上に設
置し、該湯溜りの湯を該ロール対の間隙を経て薄板に連
続鋳造する双ロール式連鋳機において、該サイドダムの
底部とロール円周面との摺接部に金属板を介装したこと
を特徴とする双ロール式連鋳機。(1) A pair of internal cooling rolls that rotate in opposite directions are arranged facing each other in parallel, and a pair of side dams are provided to form a pool on the circumferential surface of the pair of rolls, the bottom of which is located around the circumference of the rotating rolls. In a twin-roll continuous casting machine that is installed on the circumferential surface of a roll so as to be in sliding contact with the surface, and continuously casts hot water from the pool into a thin plate through the gap between the pair of rolls, the bottom of the side dam and the circumferential surface of the roll A twin-roll continuous casting machine characterized by a metal plate interposed in the sliding contact area between the two rolls.
が付与されている特許請求の範囲第１項記載の双ロール
式連鋳機。(2) The twin-roll continuous casting machine according to claim 1, wherein the metal plate is tensioned in a direction opposite to the direction of rotation of the rolls.
物層で構成されている特許請求の範囲第１項または第２
項記載の双ロール式連鋳機。(3) The bottom of the side dam in contact with the metal plate is composed of an elastic refractory layer.
Twin roll continuous casting machine as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12365987A JPH0712527B2 (en) | 1987-05-22 | 1987-05-22 | Twin roll type continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12365987A JPH0712527B2 (en) | 1987-05-22 | 1987-05-22 | Twin roll type continuous casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63290655A true JPS63290655A (en) | 1988-11-28 |
| JPH0712527B2 JPH0712527B2 (en) | 1995-02-15 |
Family
ID=14866098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12365987A Expired - Lifetime JPH0712527B2 (en) | 1987-05-22 | 1987-05-22 | Twin roll type continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712527B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014180673A (en) * | 2013-03-18 | 2014-09-29 | Josho Gakuen | Method and apparatus for casting metal plate |
-
1987
- 1987-05-22 JP JP12365987A patent/JPH0712527B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014180673A (en) * | 2013-03-18 | 2014-09-29 | Josho Gakuen | Method and apparatus for casting metal plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712527B2 (en) | 1995-02-15 |
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