JP2001518394A - Tubular mold for continuous casting mold, especially for continuous casting of peritectic steel - Google Patents
Tubular mold for continuous casting mold, especially for continuous casting of peritectic steelInfo
- Publication number
- JP2001518394A JP2001518394A JP2000513688A JP2000513688A JP2001518394A JP 2001518394 A JP2001518394 A JP 2001518394A JP 2000513688 A JP2000513688 A JP 2000513688A JP 2000513688 A JP2000513688 A JP 2000513688A JP 2001518394 A JP2001518394 A JP 2001518394A
- Authority
- JP
- Japan
- Prior art keywords
- tubular mold
- mold
- tubular
- insulating layer
- 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.)
- Granted
Links
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
- Metal Extraction Processes (AREA)
Abstract
(57)【要約】 本発明は、特に包晶系の鋼を連続鋳造するための連続鋳造鋳型用の管状鋳型に関する。本発明の管状鋳型は、鋳型において液体金属の面についての所定の位置(h) がある第１の長手方向部分(1) と、前記第１の長手方向部分に続く第２の長手方向部分(2) とを有する。第１の長手方向部分(1) は断熱層(16)を含み、その断熱材の寸法は、第１の長手方向部分(1) での管状鋳型(10)の耐熱性が第２の長手方向部分(2) より高いようになっている。断熱層(16)は、管状鋳型(10)の外側表面(11)から、管状鋳型(10)の外側表面(11)から測定した管状鋳型の壁面厚み(d W ) の最大でも75％に等しい距離までの領域を満たす。鋳片の引き抜き方向(14)に断熱層の厚み形状を適当に選択することにより、鋳造作業の際に管状鋳型の内側で所定の温度プロファイルを設定することができ、鋳片殻の成長を最適化できる。 (57) [Summary] The present invention relates to a tubular mold for a continuous casting mold, particularly for continuously casting peritectic steel. The tubular mold of the present invention comprises a first longitudinal section (1) having a predetermined position (h) with respect to the surface of the liquid metal in the mold, and a second longitudinal section (1) following the first longitudinal section. 2) and The first longitudinal section (1) includes a thermal insulation layer (16) whose dimensions are such that the heat resistance of the tubular mold (10) in the first longitudinal section (1) is in the second longitudinal direction. It is higher than part (2). The heat insulating layer (16) is formed from the outer surface (11) of the tubular mold (10) to the wall thickness (d) of the tubular mold measured from the outer surface (11) of the tubular mold (10). W) Fills an area up to a distance equal to at most 75% of. By appropriately selecting the thickness and shape of the heat insulating layer in the slab drawing direction (14), a predetermined temperature profile can be set inside the tubular mold during the casting operation, and the growth of the slab shell is optimized. Can be
Description
【０００１】 本発明は、請求項１の導入部に従った特に包晶系の鋼を連続鋳造するための連
続鋳造鋳型の管状鋳型、及び管状鋳型を有する連続鋳造鋳型に関する。 溶融金属の冷却により連続鋳造鋳型の鋳型孔の壁面に対して形成される、連続
的に成長する厚みを有する凝固殻が存在し、鋳片が連続鋳造鋳型の流出口から連
続的に引き抜かれる連続鋳造技術は、例えば炭素量が0.1 〜0.14％の鋼のような
包晶系の鋼に適用する際に、特に製造した鋳片に欠陥のある表面品質で現れる問
題をもたらすことが知られている。そのような品質の欠陥は、特に鋳片を更に加
工することによりよくそれから製造した製品に許容できない品質の欠陥をもたら
すため、望ましくない。 上記の問題の原因は、包晶系の鋼がその凝固温度の直下で受け、相当な体積収
縮が合わせて発生する相転移にあると考えられることが知られている。包晶系の
鋼の連続鋳造についてこの相転移は、形成中の凝固殻が依然薄い状態の凝固殻の
初期凝固に起こり、低い機械的安定性を示し、相転移のため、十分に凝固した鋳
片が表面で多孔性の層又は割れやすい層を有するという結果で、いくつかの箇所
のみで鋳型孔の壁面に対して不均一な表面の安定を形成する。The present invention relates to a continuous casting mold for continuous casting of peritectic steel, in particular according to the introduction of claim 1, and to a continuous casting mold having a tubular mold. There is a solidified shell that has a continuously growing thickness that is formed against the wall surface of the casting hole of the continuous casting mold by cooling the molten metal, and the slab is continuously drawn from the outlet of the continuous casting mold. Casting techniques are known to cause problems, especially when applied to peritectic steels, such as steels with 0.1 to 0.14% carbon, which manifest themselves in defective surface quality in the produced slabs. . Such quality defects are undesirable, particularly as further processing of the slabs often results in unacceptable quality defects in products made therefrom. It is known that the cause of the above problem is due to the phase transition in which the peritectic steel is received just below its solidification temperature and considerable volume shrinkage occurs together. For continuous casting of peritectic steels, this phase transition occurs during the initial solidification of the solidified shell, where the solidified shell during formation is still thin, exhibits low mechanical stability and, due to the phase transition, a fully solidified cast. As a result of the piece having a porous or fragile layer at the surface, it forms a non-uniform surface stability with respect to the walls of the mold cavity only in some places.
【０００２】 包晶系の鋼の連続鋳造に関して、液体金属液面を含む連続鋳造鋳型の領域にお
いて、溶鋼又は凝固殻からの熱流を減少することで変更される凝固殻の初期凝固
により、鋳片の表面品質が改善できることが知られている。初期凝固領域におけ
るこの熱流の減少は従来、鋳型孔の壁面の長手方向部分の鋼側表面において熱障
壁を備えた連続鋳造鋳型により行われる。その上熱流密度が初期凝固の領域にお
いて減少し、熱障壁に隣接する長手方向部分において十分高いように熱障壁の寸
法を決め、長手方向部分を調整することで、鋳型孔において鋳片により覆われる
全距離にわたって凝固殻の十分な成長を達成する。 鋳造の際に得られる液体金属液面位置を含む部分長さの領域において、鋳型孔
の境となる表面で熱障壁を有する連続鋳造鋳型の鋳型孔の壁面を形成する多くの
概念が知られている。 JOS 1-224 142 から、包晶系の鋼の製造用の鋳型が知られていて、その鋳型孔
の壁面は、鋳込まれる側面に配置され、鋼又は管状体を形成する材料より高い耐
熱性を有する他の材料で作製された、円筒状の挿入物を有する管状体からなる。
熱障壁を形成する挿入物が摩耗を受けやすく、著しいほどに加えられる鋳型の製
造コストが鋳造の際に受ける熱負荷により引き起こされる鋳型孔の壁面の割れ又
は変形を防ぐために必要となるという不利益をこの鋳型は有し、その特徴は請求
項１の導入部になっている。[0002] With regard to continuous casting of peritectic steel, in the area of a continuous casting mold that includes a liquid metal level, the initial solidification of the solidified shell, which is altered by reducing the heat flow from the molten steel or solidified shell, results in a slab. It is known that the surface quality can be improved. This reduction of heat flow in the early solidification zone is conventionally achieved by means of a continuous casting mold with a thermal barrier on the steel-side surface of the longitudinal part of the wall of the mold cavity. In addition, by sizing the thermal barrier so that the heat flow density is reduced in the region of early solidification and sufficiently high in the longitudinal section adjacent to the thermal barrier and adjusting the longitudinal section, it is covered by slabs in the mold cavity Achieve sufficient growth of the solidified shell over the entire distance. Many concepts are known that form the wall surface of the mold hole of a continuous casting mold having a thermal barrier at the boundary surface of the mold hole in the area of the partial length including the liquid metal liquid level obtained at the time of casting. I have. From JOS 1-224 142, a mold for the production of peritectic steel is known, the wall of the mold hole being located on the side to be cast, having a higher heat resistance than the steel or the material forming the tubular body. Consists of a tubular body with a cylindrical insert, made of another material having
The disadvantage is that the inserts forming the thermal barrier are susceptible to wear, and the significantly added mold manufacturing costs are required to prevent cracking or deformation of the mold cavity walls caused by the thermal load experienced during casting. This mold has a feature, which is an introduction part of claim 1.
【０００３】 熱障壁を形成する別の概念はJOS 1-170 550 に開示され、実施例として包晶系
の鋼のスラブを製造することを意図した組立鋳型を採っている。この鋳型の銅製
側壁の鋳型孔側の表面は、液体金属液面位置を含む領域において、任意にニッケ
ル、ステンレス鋼又は適当なセラミック材料で充填される内径を備える。この別
の概念に関連して、内径の充填材の摩耗感受性は別にして、適当な作業に管状鋳
型の内側は限られた量だけが利用できるため、例えばビレット型のような小型の
鋳片型の管状鋳型には生産工学上の理由で適用できないという不利益がある。[0003] Another concept for forming a thermal barrier is disclosed in JOS 1-170 550, which takes as an example an assembled mold intended to produce a slab of peritectic steel. The surface of the copper side wall of the mold on the mold hole side has an inner diameter optionally filled with nickel, stainless steel or a suitable ceramic material in a region including the liquid metal level position. In connection with this alternative concept, apart from the abrasion susceptibility of the inner diameter filler, only a limited amount of the inside of the tubular mold is available for proper work, so small slabs such as billets The disadvantage of the tubular molds is that they cannot be applied for production engineering reasons.
【０００４】 本発明は、上記の問題を解決することに寄与する目的に基づき、この目的のた
め、簡素な生産工学手段で製造できる熱障壁を備え、液体金属液面位置に配置さ
れ、改善された摩耗耐性を有する管状鋳型、及び管状鋳型を備えた対応する連続
鋳造鋳型を製造する目的に基づく。 この目的は、請求項１の全ての特徴により特徴づけられる管状鋳型、及び請求
項10の特徴を有する連続鋳造鋳型により達成される。 本発明による管状鋳型は、所定の液体金属液面位置がある第１の長手方向部分
と、第１の長手方向部分に隣接する第２の長手方向部分とを備え、ここで第１の
長手方向部分における管状鋳型の耐熱性が、第２の長手方向部分より大きい値を
有するように大きさを決めた断熱層を、第１の長手方向部分は備える。鋳型は、
断熱層が、管状鋳型の外側表面と、管状鋳型の外側表面から測定した管状鋳型の
壁面厚みの最大でも75％の位置との間の領域を占めることを特徴とする。The present invention is based on the object contributing to solving the above-mentioned problems, and for this purpose comprises a thermal barrier which can be manufactured by simple production engineering means, is arranged at the liquid metal level and is improved. It is based on the objective of producing a tubular mold with improved wear resistance and a corresponding continuous casting mold with the tubular mold. This object is achieved by a tubular mold characterized by all the features of claim 1 and a continuous casting mold having the features of claim 10. A tubular mold according to the present invention comprises a first longitudinal portion having a predetermined liquid metal level location and a second longitudinal portion adjacent to the first longitudinal portion, wherein the first longitudinal portion is located. The first longitudinal section comprises a thermal insulation layer sized such that the heat resistance of the tubular mold in the section has a greater value than the second longitudinal section. The mold is
The insulation layer occupies an area between the outer surface of the tubular mold and a position at most 75% of the wall thickness of the tubular mold measured from the outer surface of the tubular mold.
【０００５】 本発明による管状鋳型の断熱層は、管状鋳型の外側又はその近傍に配置され、
管状鋳型の内側面には届いていない。従って管状鋳型は、断熱層を備えるために
外側を加工できる管状体から製造できる。加工は、小さな内径を有する管状鋳型
の製造に適していて、その幾何学的寸法のため内側を加工できない又は非常に困
難な管状体の場合にも、従来の方法を採ることができる。[0005] The insulation layer of the tubular mold according to the invention is arranged outside or near the tubular mold,
It does not reach the inner surface of the tubular mold. Thus, the tubular mold can be manufactured from a tubular body that can be machined on the outside to provide an insulating layer. The processing is suitable for the production of tubular molds with small internal diameters, and even in the case of tubular bodies whose internal dimensions cannot be machined or are very difficult, conventional methods can be taken.
【０００６】 鋳造の際に、第１の長手方向部分の領域において断熱層は、管状鋳型の内側で
温度の上昇を確保する。管状鋳型の内側表面から断熱層までの距離が少なくとも
管状鋳型の壁面厚みの25％になるということにより、鋳造の際の管状鋳型の摩耗
は、第１の長手方向部分の領域における熱的及び機械的な材料負荷によるが、管
状鋳型の内側に同一の厚みで断熱層を形成した管状鋳型と比較して減少する。[0006] During casting, in the region of the first longitudinal section, the thermal insulation layer ensures a rise in temperature inside the tubular mold. With the distance from the inner surface of the tubular mold to the insulation layer being at least 25% of the wall thickness of the tubular mold, the wear of the tubular mold during casting is reduced by thermal and mechanical in the region of the first longitudinal part. Although it depends on a typical material load, it is reduced as compared with a tubular mold in which a heat insulating layer having the same thickness is formed inside the tubular mold.
【０００７】 本発明による管状鋳型で、断熱層の厚み形状を適当な寸法にすることで、第１
の長手方向部分の領域において鋳片殻の成長を選択的に変更するために、鋳造の
際の管状鋳型の内側表面に生成される温度分布を明確に調節することが可能とな
る。この自由度は、本発明による鋳型について、包晶系の鋼の鋳片の製造に関し
て最適化するのに使用される。包晶系の鋼からの鋳造製品の品質を最適化するた
めに、鋳造の際に管状鋳型の内側表面での温度は第１の長手方向部分の領域にお
いてできる限り高くすべきである。溶鋼の初期凝固は、液体金属液面からの距離
が離れるほど大きくなる溶鋼の静圧が、管状鋳型の内側表面から形成した鋳片殻
が局所的に分離するのを増加して妨げる効果を有して、液体金属液面からできる
限り離れた位置で遅れて開始し、その分離は包晶相転移により誘起され、従って
円滑な鋳片表面の形成を促進する。その一方で、管状鋳型の材料特性は制限的な
効果を有するので、管状鋳型の内側表面での鋳造の際の温度は、任意の値を採り
得ない。例えば銅製の管状鋳型は、いわゆる軟化温度の450 ℃の臨界温度以上に
加熱した後に、許容できないほど寿命を短期化することが知られている。In the tubular mold according to the present invention, by setting the thickness of the heat insulating layer to an appropriate size, the first shape can be obtained.
In order to selectively alter the growth of the slab shell in the region of the longitudinal section of the slab, the temperature distribution generated on the inner surface of the tubular mold during casting can be specifically adjusted. This degree of freedom is used to optimize the mold according to the invention with respect to the production of peritectic steel slabs. In order to optimize the quality of the cast product from peritectic steel, the temperature at the inner surface of the tubular mold during casting should be as high as possible in the region of the first longitudinal section. The initial solidification of molten steel has the effect that the static pressure of molten steel, which increases with distance from the liquid metal surface, increases and prevents local separation of the slab shell formed from the inner surface of the tubular mold. Thus, starting as late as possible from the liquid metal level, the separation is induced by the peritectic phase transition, thus promoting the formation of a smooth slab surface. On the other hand, the temperature during casting on the inner surface of the tubular mold cannot be any value, since the material properties of the tubular mold have a limiting effect. For example, it is known that a copper tubular mold, after heating above the so-called softening temperature of a critical temperature of 450 ° C., unacceptably shortens its life.
【０００８】 本発明による管状鋳型の有利な実施態様においては、断熱層の厚みは従って、
鋳造の際に管状鋳型の内側の温度が所定の臨界温度 TK を超えないような寸法に
なっている。 本発明による管状鋳型の更なる実施態様においては、管状鋳型の外側表面は、
長手方向部分の間の境界で連続的に形成されている。この実施態様は、管状鋳型
の外側に水冷ジャケットを有する鋳型に使用するのに特に適している。そのよう
な鋳型の水冷ジャケットは従来数mmの厚みであり、その厚みは管状鋳型に沿って
正確に制御されなければならないので、２つの長手方向部分の間の連続的な配置
の移行により、特に簡素な水冷ジャケットの構成にすることが可能になる。In a preferred embodiment of the tubular mold according to the invention, the thickness of the insulation layer is thus
The dimensions are such that the temperature inside the tubular mold during casting does not exceed a predetermined critical temperature T K. In a further embodiment of the tubular mold according to the invention, the outer surface of the tubular mold comprises:
It is formed continuously at the boundaries between the longitudinal sections. This embodiment is particularly suitable for use with molds having a water cooling jacket outside the tubular mold. The water-cooled jacket of such a mold is conventionally several mm thick, and the thickness must be precisely controlled along the tubular mold, so the transition of the continuous arrangement between the two longitudinal sections, especially A simple water-cooled jacket configuration can be achieved.
【０００９】 本発明による管状鋳型の開発において、断熱層は、金属又は金属合金の管状体
に埋め込まれる。管状体が銅又は銅合金で構成され、断熱層が金属、例えばニッ
ケル又はクロムで構成されると、管状鋳型の望ましい熱的及び機械的特性が得ら
れる。これらの材料はその膨張係数の点で互いによく調和するため、銅表面に施
したニッケル又はクロム層は良好な付着性及び高い耐摩耗性により特徴づけられ
る。In the development of the tubular mold according to the invention, the thermal insulation layer is embedded in a tubular body of metal or metal alloy. If the tubular body is made of copper or a copper alloy and the insulating layer is made of a metal, such as nickel or chromium, the desired thermal and mechanical properties of the tubular mold are obtained. The nickel or chromium layer applied to the copper surface is characterized by good adhesion and high wear resistance, since these materials are well matched to one another in terms of their coefficient of expansion.
【００１０】 本発明による管状鋳型の更なる実施態様は、熱工学の観点において、第１の長
手方向部分の領域における内側表面の温度が、最大でも所定の臨界温度にしか到
達せず、少なくとも第１の長手方向部分の小部分においておよそ一定であるよう
に構成された、冷却剤を有する管状鋳型の外側表面の冷却に関するものである。
このようにして、鋳片殻の初期凝固は、液体金属液面から著しく離れた位置まで
遅らせることができ、包晶相転移を通過した後に特に円滑な鋳片表面が達成され
うる。長手方向においてできる限り一定な温度プロファイルを達成するために、
断熱層の厚みｄは、少なくとも液体金属液面位置と第２の長手方向部分との間の
部分において、第２の長手方向部分に向かって増加しなければならない。[0010] A further embodiment of the tubular mold according to the invention is characterized in that, from a thermal engineering point of view, the temperature of the inner surface in the region of the first longitudinal section only reaches at most a predetermined critical temperature, at least The present invention relates to cooling an outer surface of a tubular mold having a coolant configured to be substantially constant in a small portion of one of the longitudinal sections.
In this way, the initial solidification of the slab shell can be delayed to a position significantly away from the liquid metal level and a particularly smooth slab surface can be achieved after passing the peritectic phase transition. In order to achieve as constant a temperature profile as possible in the longitudinal direction,
The thickness d of the thermal insulation layer must increase towards the second longitudinal part, at least in the part between the liquid metal level position and the second longitudinal part.
【００１１】 本発明による管状鋳型の様々な実施態様は、図面により以下で説明する。 図1Aは、本発明により、鋳型孔20、鋳込み口12及び鋳片（図示せず）の引き抜
き口13を有する、管状鋳型10の側面図で示した実施例を示す。鋳造の際の鋳片の
引き抜き方向は矢印14で示される。管状鋳型10は、第１の長手方向部分１と第２
の長手方向部分２とを含み、ここで長手方向部分１は、鋳造の際に形成される液
体金属液面位置ｈを含み、長手方向部分２は鋳片の引き抜き方向14に長手方向部
分１と隣接する。管状鋳型10は、長手方向部分１の領域において断熱層16を有す
る管状体15からなる。Various embodiments of the tubular mold according to the invention are described below with reference to the drawings. FIG. 1A shows an embodiment shown in side view of a tubular mold 10 having a mold hole 20, a pouring opening 12 and a slab (not shown) withdrawal opening 13 in accordance with the present invention. Arrow 14 indicates the direction in which the slab is pulled out during casting. The tubular mold 10 comprises a first longitudinal section 1 and a second
A longitudinal section 2 wherein the longitudinal section 1 includes a liquid metal level position h formed during casting, and the longitudinal section 2 includes the longitudinal section 1 in a drawing direction 14 of the slab. Adjacent. The tubular mold 10 comprises a tubular body 15 having a heat insulating layer 16 in the region of the longitudinal part 1.
【００１２】 図1Bと図1Cは、管状鋳型10の断面を示し、図1Bは長手方向部分１の領域におけ
る図1Aに記した平面I-I での断面であり、図1Cは長手方向部分１の領域における
図1Aに記した平面II-II での断面である。図1A〜Ｃから分かるように、断熱層16
は管状体15の外側11に配置されている。管状鋳型20は例えば丸い角を有する四角
形の断面を有する。この選択は任意である。本発明による管状鋳型は、従来の連
続鋳造において慣習的な任意の断面形状を備えることができる。1B and 1C show a cross section of the tubular mold 10, FIG. 1B is a cross section in the plane II shown in FIG. 1A in the area of the longitudinal part 1, and FIG. 1B is a cross-sectional view taken along plane II-II shown in FIG. 1A. As can be seen from FIGS.
Is arranged on the outside 11 of the tubular body 15. The tubular mold 20 has, for example, a rectangular cross section with rounded corners. This choice is optional. The tubular mold according to the invention can have any cross-sectional shape customary in conventional continuous casting.
【００１３】 図2A及び図2Bは図1B又は図1Cにおける線III-III に沿った長手方向断面を示し
、本発明による管状鋳型10の２つの異なる実施態様の特徴を示し、それらは管状
鋳型の長手方向における断熱層16の厚み形状の配置で異なっている。いずれの場
合においても、断熱層16は、管状体15の外側の窪みに埋め込まれている。これら
の実施例において、管状鋳型10の外側表面11は、長手方向部分１の端部で連続的
である。FIGS. 2A and 2B show a longitudinal section along the line III-III in FIG. 1B or FIG. 1C and show the characteristics of two different embodiments of the tubular mold 10 according to the invention, which are This differs depending on the arrangement of the thickness of the heat insulating layer 16 in the longitudinal direction. In any case, the heat insulating layer 16 is embedded in a depression outside the tubular body 15. In these embodiments, the outer surface 11 of the tubular mold 10 is continuous at the end of the longitudinal section 1.
【００１４】 管状体は、適当には銅又は銅合金からなる。断熱層の材料の組成を考慮すると
、適当にはニッケル又はクロムのような金属があり、それらは例えばメッキ又は
電気化学的処理などの従来法により管状体15に施すことができる。しかしながら
例えばセラミック材料のような他の材料も、断熱層の組成として使用することが
でき、それは、それらが管状体15より低い熱伝導度を有し、付着特性及び耐摩耗
性の点で適していればである。The tubular body is suitably made of copper or a copper alloy. Given the composition of the material of the insulation layer, there are suitably metals such as nickel or chromium, which can be applied to the tubular body 15 by conventional methods, for example by plating or electrochemical treatment. However, other materials such as, for example, ceramic materials can also be used as the composition of the thermal insulation layer, which have a lower thermal conductivity than the tubular body 15 and are suitable in terms of adhesion properties and wear resistance. If it is.
【００１５】 本発明による管状鋳型10の図2Aに示した実施態様は、断熱層16が、液体金属液
面位置ｈと長手方向部分２と隣接するその端部との間の領域において、図2Aにお
いてｄで示した実質的に一定の厚みを有することを特徴とする。この幾何学的配
置で、管状鋳型10の外側表面11の均一な冷却を仮定すると、特に管状鋳型10の内
側表面25での長手方向部分の領域に形成される鋳片殻が、鋳片引き抜き方向14に
厚みが増加し、管状鋳型10の表面25と11の間の熱流が鋳片引き抜き方向14に減少
することが確保されるため、鋳造の際に管状鋳型10の内側表面での温度は、液体
金属液面位置ｈに位置する最大温度地点から鋳片引き抜き方向14に減少する。The embodiment shown in FIG. 2A of the tubular mold 10 according to the invention is characterized in that the thermal insulation layer 16 is provided in the region between the liquid metal level h and the end adjacent the longitudinal section 2 in FIG. Has a substantially constant thickness indicated by d. With this geometry, assuming uniform cooling of the outer surface 11 of the tubular mold 10, the slab shell formed especially in the region of the longitudinal portion on the inner surface 25 of the tubular mold 10 has a The temperature at the inner surface of the tubular mold 10 during casting is increased by increasing the thickness at 14 and ensuring that the heat flow between the surfaces 25 and 11 of the tubular mold 10 decreases in the slab withdrawal direction 14. From the maximum temperature point located at the liquid metal liquid level position h, the temperature decreases in the slab withdrawal direction 14.
【００１６】 鋳片引き抜き方向14に対応して断熱層16の厚みを変えることにより、管状鋳型
10の内側表面25で得られる温度プロファイルは、鋳片殻特性を最適化するために
、選択的に変更できる。本発明による管状鋳型10の図2Bに示した実施態様は、液
体金属液面位置と長手方向部分２に隣接する端部との間の領域において、断熱層
16が厚みｄから厚みｂへくさび形に増加することを特徴とする。例えば管状鋳型
10の内側25での温度プロットが、鋳片の引き抜き方向14でおよそ一定であり、所
定の値に達するように、厚みｄ及びｂは管状鋳型10の壁面厚み dW に比例して選
択できる。詳細な温度プロットは表面25での鋳片殻成長に関連する。By changing the thickness of the heat insulating layer 16 corresponding to the slab drawing direction 14,
The temperature profile obtained at the inner surface 25 of 10 can be selectively varied to optimize the slab shell properties. The embodiment shown in FIG. 2B of the tubular mold 10 according to the invention provides an insulating layer in the region between the liquid metal level and the end adjacent the longitudinal section 2.
16 is characterized by increasing in a wedge shape from the thickness d to the thickness b. For example, a tubular mold
Temperature plots at the inside 25 of the 10 is approximately constant in the drawing direction 14 of the slab, so as to reach a predetermined value, the thickness d and b can be selected in proportion to the wall thickness d W of the tubular mold 10. The detailed temperature plot relates to slab shell growth on surface 25.
【００１７】 管状体15は概して、最大の臨界温度 TK 以下の温度で使用するように構成され
ている。冷却剤の適用による外側表面の冷却を仮定すると、鋼の連続鋳造用の管
状鋳型10は熱工学の観点において以下のように構成することができる。管状鋳型
10の内側表面25における温度が所定の臨界温度 TK を超えないために、液体金属
液面位置ｈでの断熱層16の厚みｄは、以下の式、 ｄ ≦ dW /(1-f) ＋ λW (10TL +TS -11TK )/α(TS -TK )(1-f) ＝ ｄmax (1) に従って寸法を決めるべきであり、ここで、 dW ：第１の長手方向部分１での管状鋳型の10の壁面厚み λW ：第２の長手方向部分２での管状鋳型10の熱伝導度 f ：比λW ／λi であり、λi は断熱層16の熱伝導度を示す TK ：臨界温度 TS ：管状鋳型10の内側表面25での鋼の温度 TL ：冷却剤の温度 α ：冷却剤と断熱層16との間の伝達に関する熱伝達係数 である。The tubular body 15 is generally configured for use at temperatures below the maximum critical temperature T K. Assuming cooling of the outer surface by the application of a coolant, the tubular mold 10 for continuous casting of steel can be constructed as follows in terms of thermal engineering. Tubular mold
For temperature in the inner surface 25 of 10 does not exceed a predetermined critical temperature T K, the thickness d of the insulation layer 16 at the liquid metal level position h has the following formula, d ≦ d W / (1 -f) + Λ W (10T L + T S -11T K ) / α (T S -T K ) (1-f) = d max (1), where d W is the first The wall thickness of the tubular mold 10 at the longitudinal section 1 λ W : thermal conductivity of the tubular mold 10 at the second longitudinal section 2 f: ratio λ W / λ i , where λ i is the insulation layer 16 T K : Critical temperature T S : Temperature of the steel at the inner surface 25 of the tubular mold 10 T L : Temperature of the coolant α: Heat transfer coefficient for the transfer between the coolant and the heat insulating layer 16 is there.
【００１８】 図３において、式(1) によるｄ＝ dmax が、２つのパラメータf=4 とf=10につ
いて壁面の厚み dW の関数としてプロットされ、ここで TK ＝450 ℃、 TS ＝14
80℃、及びα＝30000W(m2*K)と TL ＝40℃の水冷を代表する値を仮定している。
この TK =450℃は銅についての特徴的な経験値である。２つのパラメータf=4 と
f=10は、銅の管状体15と、ニッケル(f=4) 又は鋼(f=10)の断熱層16とを有する管
状鋳型10を代表する例である。図３から分かるように、比 dmax /dW は管状鋳型
10の壁面厚み dW が大きくなるほど減少する。管状鋳型10の厚み dW が小さいほ
ど、長手方向部分１の管状鋳型10の内側25の温度を例として TK =450℃で与えた
臨界温度 TK まで上昇させるために、管状鋳型10の全厚み dW において断熱層の
厚みの割合を大きくしなければならない。その上、所定の壁面厚み dW について
ｆが小さいほど、すなわち断熱層の熱伝導度λi が大きいほど、 dmax /dW は大
きくなる。経験によると、管状鋳型10の壁面厚み dW は、典型的には鋳型孔20の
断面の側面長さの約10％であるべきである。管状鋳型10が、約10cmの断面の側面
長さを有する小さいビレット用に設計されていれば、厚み比 dmax /dW はf=4 に
ついて約75％になる。断熱層16を収容する窪みが管状体15の外側に配置されてい
れば、 dmax /dW ≧75％及びｆ＜４について、塊状の管状体15からの管状鋳型10
の製造は、特に管状体15の機械的安定性が不均衡に損なわれるため、問題となる
。加えて、断熱層16を形成する際の困難は、特に断熱層16を適当な材料の薄い層
を連続的に付与することにより堆積させる製造工程において、比 dmax /dW が上
昇するほど大きくなる。従って断熱層16の形成には、 dmax /dW ≦75％という条
件に加えて、ｆ≧４というパラメータ範囲が好ましい。In FIG. 3, d = d max according to equation (1) is plotted as a function of wall thickness d W for two parameters f = 4 and f = 10, where T K = 450 ° C., T S = 14
Values representative of water cooling at 80 ° C. and α = 30000 W (m 2 * K) and T L = 40 ° C. are assumed.
This T K = 450 ° C. is a characteristic empirical value for copper. Two parameters f = 4 and
f = 10 is an example representing a tubular mold 10 having a copper tubular body 15 and a heat insulating layer 16 of nickel (f = 4) or steel (f = 10). As can be seen from FIG. 3, the ratio d max / d W is
10 wall thickness d W of decreases as increases. As the thickness d W of the tubular mold 10 is small, the temperature of the inner 25 of the tubular mold 10 of the longitudinal portion 1 to be raised to the critical temperature T K given by T K = 450 ° C. As an example, all of the tubular mold 10 it is necessary to increase the proportion of the thickness of the heat insulating layer in the thickness d W. In addition, as f becomes smaller for a given wall thickness d W , that is, as the thermal conductivity λ i of the heat insulating layer becomes larger, d max / d W becomes larger. According to experience, the wall thickness d W of the tubular mold 10, typically should be about 10% of the side length of the cross section of the mold holes 20. If the tubular mold 10 is designed for small billets having a cross-sectional side length of about 10 cm, the thickness ratio d max / d W will be about 75% for f = 4. If the depression containing the insulation layer 16 is arranged outside the tubular body 15, the tubular mold 10 from the massive tubular body 15 for d max / d W ≧ 75% and f <4
Is problematic, especially since the mechanical stability of the tubular body 15 is disproportionately impaired. In addition, the difficulty in forming the heat insulating layer 16 is particularly large in a manufacturing process where the heat insulating layer 16 is deposited by continuously applying a thin layer of a suitable material, as the ratio d max / d W increases. Become. Therefore, for the formation of the heat insulating layer 16, a parameter range of f ≧ 4 is preferable in addition to the condition of d max / d W ≦ 75%.
【００１９】 図４において、鋳造の際に内側表面25での温度が厚み形状に沿って一定である
ように決めた厚み形状により、断熱層16の厚みが、液体金属液面位置での厚みｄ
から厚みｂに鋳片を引き抜く方向14に大きくなる場合について、壁面厚み dW の
関数としていかに比 b/dW が変化するかについて、管状鋳型10に関して示してい
る。鋳造の際に臨界温度 TK が厚み形状に沿って形成される場合について、式(1
) と図４から比 b/dW 及び d/dW が決定される。図３との比較により、 TK =450
℃の特定の場合について、対応する値が与えられる。図４に示した曲線形状はｆ
に依存しない。In FIG. 4, the thickness of the heat insulating layer 16 is set to be the thickness d at the liquid metal liquid level position by the thickness shape determined so that the temperature at the inner surface 25 during casting is constant along the thickness shape.
From the case where increases in the direction 14 to pull out the cast slab to a thickness b, the how the ratio b / d W as a function of the wall thickness d W changes are shown for the tubular mold 10. For the case where the critical temperature T K is formed along the thickness shape during casting, the equation (1
) And FIG. 4, the ratios b / d W and d / d W are determined. By comparison with FIG. 3, T K = 450
For the particular case of ° C., the corresponding values are given. The curve shape shown in FIG.
Does not depend on
【００２０】 管状鋳型10の長さは典型的に80〜100cm になる。長手方向部分１の長さは好ま
しくは10〜15cmの範囲にあり、液体金属液面位置は好ましくは長手方向部分１の
上部から４分の１の位置にある。 上記の実施態様において、断熱層16は常に、管状鋳型10の外側表面11が連続的
に配置されるように、管状体15の窪みに埋め込まれている。本発明の概念の範囲
において、窪みに断熱層16を埋め込むこと、又は外側表面11の連続的な配置を不
要にすることもできる。本発明による管状鋳型の表面11及び25は、適当な材料の
被膜を備えることもできる。The length of the tubular mold 10 will typically be 80-100 cm. The length of the longitudinal part 1 is preferably in the range of 10 to 15 cm, and the liquid metal level is preferably located one quarter from the top of the longitudinal part 1. In the embodiment described above, the heat insulating layer 16 is always embedded in the depression of the tubular body 15 so that the outer surface 11 of the tubular mold 10 is continuously arranged. Within the concept of the invention, it is also possible to embed the insulation layer 16 in the depressions or to obviate the need for a continuous arrangement of the outer surface 11. The surfaces 11 and 25 of the tubular mold according to the invention can also be provided with a coating of a suitable material.
【図１】 図1Aは、本発明による管状鋳型の実施例を側面図で示している。 図1Bは、図１における線I-I に沿った断面図である。 図1Cは、図1Aにおける線II-II に沿った断面図である。FIG. 1A shows an embodiment of a tubular mold according to the invention in a side view. FIG. 1B is a sectional view taken along the line II in FIG. FIG. 1C is a sectional view taken along line II-II in FIG. 1A.
【図２】 図2Aは、特定の厚み形状の断熱層についての図1Cの線III-III に沿った長手方
向断面図である。 図2Bは、図2Aに示したような断面図であり、断熱層の厚み形状が変化するもの
を示した図である。FIG. 2A is a longitudinal sectional view along a line III-III of FIG. 1C for a heat insulating layer having a specific thickness. FIG. 2B is a cross-sectional view as shown in FIG. 2A, in which the thickness of the heat insulating layer changes.
【図３】 図３は、所定の壁面温度について管状鋳型の壁面厚み dW の関数として図2Aに
よる断熱層の厚みｄをプロットした図である。FIG. 3 is a plot of the thickness d of the thermal insulation layer according to FIG. 2A as a function of the wall thickness d W of the tubular mold for a given wall temperature.
【図４】 図４は、所定の壁面温度の形状について管状鋳型の壁面厚み dW の関数として
断熱層の寸法を示した図である。Figure 4 is a diagram showing dimensions of the heat insulating layer as a function of the wall thickness d W tubular mold the shape of a given wall temperature.
【手続補正書】特許協力条約第３４条補正の翻訳文提出書[Procedural Amendment] Submission of translation of Article 34 Amendment of the Patent Cooperation Treaty
【提出日】平成１２年４月３日（２０００．４．３）[Submission date] April 3, 2000 (200.4.3)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Correction target item name] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００２】 包晶系の鋼の連続鋳造に関して、液体金属液面を含む連続鋳造鋳型の領域にお
いて、溶鋼又は凝固殻からの熱流を減少することで変更される凝固殻の初期凝固
により、鋳片の表面品質が改善できることが知られている。初期凝固領域におけ
るこの熱流の減少は従来、鋳型孔の壁面の長手方向部分の鋼側表面において熱障
壁を備えた連続鋳造鋳型により行われる。その上熱流密度が初期凝固の領域にお
いて減少し、熱障壁に隣接する長手方向部分において十分高いように熱障壁の寸
法を決め、長手方向部分を調整することで、鋳型孔において鋳片により覆われる
全距離にわたって凝固殻の十分な成長を達成する。 鋳造の際に得られる液体金属液面位置を含む部分長さの領域において、鋳型孔
の境となる表面で熱障壁を有する連続鋳造鋳型の鋳型孔の壁面を形成する多くの
概念が知られている。 JP 1-224 142 Aの要約書から、包晶系の鋼の製造用の鋳型が知られていて、そ
の鋳型孔の壁面は、鋳込まれる側面に配置され、鋼又は管状体を形成する材料よ
り高い耐熱性を有する他の材料で作製された、円筒状の挿入物を有する管状体か
らなる。熱障壁を形成する挿入物が摩耗を受けやすく、著しいほどに加えられる
鋳型の製造コストが鋳造の際に受ける熱負荷により引き起こされる鋳型孔の壁面
の割れ又は変形を防ぐために必要となるという不利益をこの鋳型は有する。[0002] With regard to continuous casting of peritectic steel, in the area of a continuous casting mold that includes a liquid metal level, the initial solidification of the solidified shell, which is altered by reducing the heat flow from the molten steel or solidified shell, results in a slab. It is known that the surface quality can be improved. This reduction of heat flow in the early solidification zone is conventionally achieved by means of a continuous casting mold with a thermal barrier on the steel-side surface of the longitudinal part of the wall of the mold cavity. In addition, by sizing the thermal barrier so that the heat flow density is reduced in the region of early solidification and sufficiently high in the longitudinal section adjacent to the thermal barrier and adjusting the longitudinal section, it is covered by slabs in the mold cavity Achieve sufficient growth of the solidified shell over the entire distance. Many concepts are known that form the wall surface of the mold hole of a continuous casting mold having a thermal barrier at the boundary surface of the mold hole in the area of the partial length including the liquid metal liquid level obtained at the time of casting. I have. From the abstract of JP 1-224 142 A, a mold for the production of peritectic steel is known, the walls of the mold holes of which are arranged on the side to be cast, the material forming the steel or tubular body It consists of a tubular body with a cylindrical insert, made of another material with higher heat resistance. The disadvantage is that the inserts forming the thermal barrier are susceptible to wear, and the significantly added mold manufacturing costs are required to prevent cracking or deformation of the mold cavity walls caused by the thermal load experienced during casting. This mold has
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Correction target item name] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００３】 熱障壁を形成する別の概念はJP 1-170 550 Aの要約書に開示され、実施例とし
て包晶系の鋼のスラブを製造することを意図した組立鋳型を採っている。この鋳
型の銅製側壁の鋳型孔側の表面は、液体金属液面位置を含む領域において、任意
にニッケル、ステンレス鋼又は適当なセラミック材料で充填される内径を備える
。この別の概念に関連して、内径の充填材の摩耗感受性は別にして、適当な作業
に管状鋳型の内側は限られた量だけが利用できるため、例えばビレット型のよう
な小型の鋳片型の管状鋳型には生産工学上の理由で適用できないという不利益が
ある。 JP 02-006 038 A の要約書から、包晶系の鋼の鋳造を意図した鋳型が知られて
いて、その鋳型孔の壁面は、銅で作製され、鋳型孔から離れる向きの側面に冷却
水スリットを備える。液体金属液面位置を含む領域において、冷却水スリットに
は、５〜20mmの周期的な間隔で、銅より熱伝導度の低い金属又はセラミック材料
が埋め込まれている。この概念により、所定の耐熱性を有する熱障壁を形成する
ために、埋め込んだ材料は鋳型孔の壁面に比較的深く延在する必要がある。その
ような熱障壁の達成は、特に適当な材料を鋳型孔の壁面上の多くの箇所に比較的
深く埋め込まれなければならないため、生産工学の観点において複雑である。Another concept of forming a thermal barrier is disclosed in the abstract of JP 1-170 550 A, taking as an example an assembly mold intended to produce a peritectic steel slab. The surface of the copper side wall of the mold on the mold hole side has an inner diameter optionally filled with nickel, stainless steel or a suitable ceramic material in a region including the liquid metal level position. In connection with this alternative concept, apart from the abrasion susceptibility of the inner diameter filler, only a limited amount of the inside of the tubular mold is available for proper work, so small slabs such as billets The disadvantage of the tubular molds is that they cannot be applied for production engineering reasons. From the abstract of JP 02-006 038 A, a mold intended for the casting of peritectic steel is known, the walls of the mold holes being made of copper and cooling water on the side facing away from the mold holes. It has a slit. In a region including the liquid metal liquid level position, a metal or ceramic material having lower thermal conductivity than copper is embedded in the cooling water slit at periodic intervals of 5 to 20 mm. With this concept, the embedded material needs to extend relatively deeply into the wall of the mold cavity in order to form a thermal barrier with a given heat resistance. Achieving such a thermal barrier is complicated from a production engineering point of view, especially since a suitable material must be relatively deeply embedded at many points on the wall of the mold cavity.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００４】 本発明は、上記の問題を解決することに寄与する目的に基づき、この目的のた
め、簡素な生産工学手段で製造できる熱障壁を備え、液体金属液面位置に配置さ
れ、改善された摩耗耐性を有する管状鋳型、及び管状鋳型を備えた対応する連続
鋳造鋳型を製造する目的に基づく。 この目的は、請求項１の全ての特徴により特徴づけられる管状鋳型、及び請求
項10の特徴を有する連続鋳造鋳型により達成される。 本発明による管状鋳型は、所定の液体金属液面位置がある第１の長手方向部分
と、第１の長手方向部分に隣接する第２の長手方向部分とを備え、ここで第１の
長手方向部分における管状鋳型の耐熱性が、第２の長手方向部分より大きい値を
有するように大きさを決めた断熱層を、第１の長手方向部分は備える。鋳型は、
断熱層が、管状鋳型の外側表面と、管状鋳型の外側表面から測定した管状鋳型の
壁面厚みの最大でも75％の位置との間の領域を占めることを特徴とする。The present invention is based on the object contributing to solving the above-mentioned problems, and for this purpose comprises a thermal barrier which can be manufactured by simple production engineering means, is arranged at the liquid metal level and is improved. It is based on the objective of producing a tubular mold with improved wear resistance and a corresponding continuous casting mold with the tubular mold. This object is achieved by a tubular mold characterized by all the features of claim 1 and a continuous casting mold having the features of claim 10. A tubular mold according to the present invention comprises a first longitudinal portion having a predetermined liquid metal level location and a second longitudinal portion adjacent to the first longitudinal portion, wherein the first longitudinal portion is located. The first longitudinal section comprises a thermal insulation layer sized such that the heat resistance of the tubular mold in the section has a greater value than the second longitudinal section. The mold is
The insulation layer occupies an area between the outer surface of the tubular mold and a position at most 75% of the wall thickness of the tubular mold measured from the outer surface of the tubular mold.
Claims (11)
鋳型であって、所定の液体金属液面位置(h) がある第１の長手方向部分(1) と、
前記第１の長手方向部分に隣接する第２の長手方向部分(2) とを有し、前記第１
の長手方向部分(1) が断熱層(16)を含み、前記第１の長手方向部分(1) での前記
管状鋳型(10)の耐熱性が前記第２の長手方向部分(2) より高いように、前記断熱
層(16)の寸法を決める管状鋳型において、 前記断熱層(16)が、前記管状鋳型(10)の外側表面(11)と、前記管状鋳型(10)の前
記外側表面(11)から測定した前記管状鋳型(10)の壁面厚み(dW ) の最大でも75％
の位置との間の領域を占めることを特徴とする管状鋳型。1. A tubular mold for a continuous casting mold, especially for continuous casting of peritectic steel, comprising: a first longitudinal part (1) having a predetermined liquid metal level (h); ,
A second longitudinal section (2) adjacent to the first longitudinal section;
Includes a heat insulating layer (16), and the heat resistance of the tubular mold (10) at the first longitudinal portion (1) is higher than that of the second longitudinal portion (2). As described above, in the tubular mold that determines the dimensions of the heat insulating layer (16), the heat insulating layer (16) has an outer surface (11) of the tubular mold (10) and the outer surface (11) of the tubular mold (10). At most 75% of the wall thickness (d W ) of the tubular mold (10) measured from 11)
A tubular mold occupying an area between the two positions.
(1,2) の間の境界において連続的に構成されていることを特徴とする、請求項１
に記載の管状鋳型。2. The method according to claim 1, wherein the outer surface (11) of the tubular mold (10) comprises
2. The structure according to claim 1, wherein the structure is continuous at the boundary between (1,2).
A tubular mold according to claim 1.
の臨界温度 TK を超えないように、前記断熱層(16)の厚み(d) が調整されている
ことを特徴とする、請求項１又は２に記載の管状鋳型。3. The thickness (d) of the heat insulating layer (16) is set so that the temperature inside the tubular mold (10) does not exceed a predetermined critical temperature T K during casting. 3. The tubular mold according to claim 1, wherein the tubular mold is adjusted.
れていることを特徴とする、請求項１から３のいずれか１項に記載の管状鋳型。4. The tubular mold according to claim 1, wherein the heat-insulating layer is embedded in a metal or metal alloy tubular body.
よる前記外側表面(11)の冷却を備えた連続鋳造用に構成され、前記断熱層(16)の
厚みｄが液体金属液面位置(h) で、以下の式、 ｄ ≦ dW /(1-f) ＋ λW (10TL +TS -11TK )/α(TS -TK )(1-f) ここで、 dW ：前記第１の長手方向部分(1) での前記管状鋳型の(10)の壁面厚み λW ：前記第２の長手方向部分(2) での前記管状鋳型(10)の熱伝導度 f ：比λW ／λi 、ここでλi は前記断熱層(16)の熱伝導度を示す TK ：臨界温度 TS ：前記管状鋳型(10)の内側表面(25)での鋼の温度 TL ：前記冷却剤の温度 α ：前記冷却剤と前記断熱層(16)との間の伝達に関する熱伝達係数 に従って寸法が決まることを特徴とする、請求項４に記載の管状鋳型。5. The tubular mold (10) is configured for continuous casting with cooling of the outer surface (11) by application of a coolant from a thermal engineering point of view, and the thickness d of the thermal insulation layer (16). in but liquid metal level position (h), the following equation, d ≦ d W / (1 -f) + λ W (10T L + T S -11T K) / α (T S -T K) (1- f) where d W : the wall thickness of the tubular mold (10) at the first longitudinal portion (1) λ W : the tubular mold (10) at the second longitudinal portion (2) ): Thermal conductivity f: ratio λ W / λ i , where λ i indicates the thermal conductivity of the heat insulating layer (16) T K : critical temperature T S : inner surface (25) of the tubular mold (10) 5) The temperature of the steel at T L : the temperature of the coolant α: the heat transfer coefficient for the transfer between the coolant and the thermal insulation layer (16). Tubular mold.
。6. The tubular mold according to claim 5, wherein f ≧ 4.
記第２の長さ方向部分(2) との間の部分で、前記第２の長さ方向部分に向かって
増加することを特徴とする、請求項５又は６に記載の管状鋳型。7. The thickness (d, b) of the heat insulating layer is a portion between the liquid metal liquid level position (h) and the second lengthwise portion (2), and the second length The tubular mold according to claim 5, wherein the shape of the tubular mold increases toward the vertical portion.
いて鋳造の際におよそ一定であるように、前記断熱層(16)の厚みの増加が調整さ
れていることを特徴とする、請求項７に記載の管状鋳型。8. An increase in the thickness of the heat insulating layer (16) is adjusted so that the temperature inside the tubular mold (10) is approximately constant during casting in the region of the part. The tubular mold according to claim 7, characterized in that:
、かつ前記管状体(15)が銅又は銅合金で構成されていることを特徴とする、請求
項４から８のいずれか１項に記載の管状鋳型。9. The heat insulating layer (16) is made of a metal such as nickel or chromium, and the tubular body (15) is made of copper or a copper alloy. The tubular mold according to any one of the above.
する、特に包晶系の鋼を連続鋳造するための連続鋳造鋳型。10. Continuous casting mold for continuous casting of peritectic steel, comprising a tubular mold (10) according to any one of claims 1 to 9.
の装置、例えば水冷ジャケットが備わっていることを特徴とする、請求項１０に
記載の連続鋳造鋳型。11. The continuous casting mold according to claim 10, characterized in that the outer surface (11) of the tubular mold (10) is provided with a device for applying a coolant, for example a water cooling jacket.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH229797 | 1997-10-01 | ||
| CH2297/97 | 1997-10-01 | ||
| PCT/EP1998/005828 WO1999016564A1 (en) | 1997-10-01 | 1998-09-14 | Mould pipe for a continuous casting mould for the continuous casting of steels, especially peritectic steels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001518394A true JP2001518394A (en) | 2001-10-16 |
| JP4393698B2 JP4393698B2 (en) | 2010-01-06 |
Family
ID=4230492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000513688A Expired - Fee Related JP4393698B2 (en) | 1997-10-01 | 1998-09-14 | Tubular mold for continuous casting mold for continuous casting of peritectic steel |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1019208B1 (en) |
| JP (1) | JP4393698B2 (en) |
| AR (1) | AR015459A1 (en) |
| AT (1) | ATE222150T1 (en) |
| CZ (1) | CZ289354B6 (en) |
| DE (1) | DE59805207D1 (en) |
| ES (1) | ES2182361T3 (en) |
| RU (1) | RU2203158C2 (en) |
| TW (1) | TW483783B (en) |
| WO (1) | WO1999016564A1 (en) |
| ZA (1) | ZA988870B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19852473C5 (en) * | 1998-11-13 | 2005-10-06 | Sms Demag Ag | Chill plate of a continuous casting plant |
| CN106536085B (en) * | 2014-07-24 | 2019-04-19 | 杰富意钢铁株式会社 | The continuous casing of steel |
| JP6256627B2 (en) * | 2014-10-28 | 2018-01-10 | Ｊｆｅスチール株式会社 | Continuous casting mold and steel continuous casting method |
| WO2018074406A1 (en) | 2016-10-19 | 2018-04-26 | Ｊｆｅスチール株式会社 | Continuous casting mold and method for continuous casting of steel |
| RU2678556C1 (en) * | 2017-09-18 | 2019-01-29 | Акционерное общество "Первоуральский новотрубный завод" (АО "ПНТЗ") | Mold sleeve for continuous steel casting |
| BR102018010463B1 (en) * | 2018-05-23 | 2021-10-26 | Universidade Federal De Minas Gerais - Ufmg | DEMOLDING SYSTEM FOR CERAMIC PARTS MANUFACTURED BY FREEZE-CASTING |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE758996A (en) * | 1969-11-14 | 1971-04-30 | Kabel Metallwerke Ghh | CONTINUOUS CASTING LINGOTIER FOR CASTING A METAL, IN PARTICULAR STEEL |
| EP0030308A1 (en) * | 1979-11-27 | 1981-06-17 | Concast Holding Ag | Continuous casting mould for pouring steel |
| SU904877A1 (en) * | 1980-01-10 | 1982-02-15 | Институт черной металлургии | Metallic cooler for shaping ingot |
| JPH01170550A (en) * | 1987-12-24 | 1989-07-05 | Nkk Corp | Mold for continuously casting steel |
| JPH01224142A (en) * | 1988-03-03 | 1989-09-07 | Sumitomo Metal Ind Ltd | Mold for continuous casting |
| JPH026038A (en) * | 1988-06-27 | 1990-01-10 | Nkk Corp | Mold for continuously casting steel |
| DE3909900A1 (en) * | 1989-03-25 | 1990-10-18 | Thyssen Stahl Ag | Continuous casting mould for the casting of steel strip |
-
1998
- 1998-09-14 ES ES98948969T patent/ES2182361T3/en not_active Expired - Lifetime
- 1998-09-14 DE DE59805207T patent/DE59805207D1/en not_active Expired - Lifetime
- 1998-09-14 EP EP98948969A patent/EP1019208B1/en not_active Expired - Lifetime
- 1998-09-14 JP JP2000513688A patent/JP4393698B2/en not_active Expired - Fee Related
- 1998-09-14 RU RU2000110734/02A patent/RU2203158C2/en not_active IP Right Cessation
- 1998-09-14 WO PCT/EP1998/005828 patent/WO1999016564A1/en active IP Right Grant
- 1998-09-14 CZ CZ20001187A patent/CZ289354B6/en not_active IP Right Cessation
- 1998-09-14 AT AT98948969T patent/ATE222150T1/en not_active IP Right Cessation
- 1998-09-25 AR ARP980104803A patent/AR015459A1/en active IP Right Grant
- 1998-09-29 ZA ZA988870A patent/ZA988870B/en unknown
- 1998-09-30 TW TW087116270A patent/TW483783B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP4393698B2 (en) | 2010-01-06 |
| EP1019208A1 (en) | 2000-07-19 |
| ZA988870B (en) | 1999-04-01 |
| RU2203158C2 (en) | 2003-04-27 |
| WO1999016564A1 (en) | 1999-04-08 |
| CZ289354B6 (en) | 2002-01-16 |
| TW483783B (en) | 2002-04-21 |
| AR015459A1 (en) | 2001-05-02 |
| ATE222150T1 (en) | 2002-08-15 |
| CZ20001187A3 (en) | 2001-06-13 |
| ES2182361T3 (en) | 2003-03-01 |
| EP1019208B1 (en) | 2002-08-14 |
| DE59805207D1 (en) | 2002-09-19 |
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