JP2895100B2 - Continuous casting mold - Google Patents
Continuous casting moldInfo
- Publication number
- JP2895100B2 JP2895100B2 JP20761589A JP20761589A JP2895100B2 JP 2895100 B2 JP2895100 B2 JP 2895100B2 JP 20761589 A JP20761589 A JP 20761589A JP 20761589 A JP20761589 A JP 20761589A JP 2895100 B2 JP2895100 B2 JP 2895100B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- alloy
- mold
- hardness
- plating layer
- 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 - Fee Related
Links
- 238000009749 continuous casting Methods 0.000 title claims description 9
- 239000010410 layer Substances 0.000 claims description 78
- 238000007747 plating Methods 0.000 claims description 38
- 229910045601 alloy Inorganic materials 0.000 claims description 34
- 239000000956 alloy Substances 0.000 claims description 34
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 22
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000007751 thermal spraying Methods 0.000 claims 4
- 238000000034 method Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910017709 Ni Co Inorganic materials 0.000 description 2
- 229910003267 Ni-Co Inorganic materials 0.000 description 2
- 229910003271 Ni-Fe Inorganic materials 0.000 description 2
- 229910003286 Ni-Mn Inorganic materials 0.000 description 2
- 229910003262 Ni‐Co Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は連続鋳造用鋳型に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a continuous casting mold.
＜従来の技術＞ 連続鋳造用鋳型は、その使用条件から鋳型上部では主
として溶融金属に対する抜熱性が、鋳型下部では凝固シ
ェル即ち鋳片に対する耐摩耗性が要求される。<Conventional technology> A continuous casting mold is required to have heat removal properties mainly for molten metal in the upper part of the mold and wear resistance to a solidified shell, that is, a slab, in the lower part of the mold due to its use conditions.
鋳型下部の耐摩耗性を向上させる手段としては、銅若
しくは銅合金製鋳型本体の表面の略下半部にNi−Cr系合
金溶射等を施す方法が一般的である。更には本件出願人
が以前に発明した特公昭61−15782号公報に示されるNi
−Cr系合金溶射層を施す方策，特開昭58−205653号公報
に示されるNi−Fe、Ni−Co、Ni−Mn合金メッキを上部か
ら下部に向け順次層厚でしかも硬度も上部から下部に向
けて順次大とする様な方策，更には特開昭58−70943号
公報に示されるNi−Fe、Ni−Co、Ni−Mn合金の電着層を
やはり上部から下部に向けてその厚さも硬度も順次大と
する様な方策がある。As a means for improving the wear resistance of the lower part of the mold, a method of spraying a Ni-Cr alloy or the like on a substantially lower half of the surface of the copper or copper alloy mold body is generally used. Further, Ni is disclosed in Japanese Patent Publication No. 61-15782, which was previously invented by the present applicant.
-Cr-based alloy spray coating method, Ni-Fe, Ni-Co, Ni-Mn alloy plating shown in Japanese Patent Application Laid-Open No. 58-205653, in order from top to bottom, with layer thickness and hardness from top to bottom. The electrodeposition layers of Ni-Fe, Ni-Co, and Ni-Mn alloys disclosed in JP-A-58-70943 are also increased in thickness from the top to the bottom. There is a measure to increase the hardness sequentially.
＜発明が解決しようとする課題＞ 上記従来技術の中で鋳型本体の表面の略下半部にNi−
Cr系合金溶射等を施す方法は第３図に示す方法であり、
Ni−Cr系合金溶射層の硬度Hv600と銅本体の硬度Hv120が
大きな硬度差を有するため、銅本体部が第４図の如く偏
摩耗して段差が生じることにより鋳造トラブルが生じ
る。その段差の使用可能限界は0.2〜0.3mm程度である知
見も得ている。又特公昭61−15782号公報に示されるNi
−Cr系合金溶射層による方策は、耐摩耗性には優れてい
るが、溶射法の特徴から被覆層中に若干の気孔や酸化物
等の不純物が残存するため最表面の純度が悪く、溶鋼が
直接接触する鋳型上部では表面焼付きの問題を有してい
る。又特開昭58−205653号公報や特開昭58−70943号公
報による方策はいずれもその被覆層強化の機構が異種元
素添加により硬度を上げるものだから必然的に内部応力
が大きくなり、特に連続鋳造用鋳型の使用環境は激しく
耐摩耗性を満たすため膜厚を厚くすると内部応力も大と
なりクラックが入りやすいという欠点を有している。<Problem to be Solved by the Invention> In the above-mentioned conventional technology, Ni-
The method of spraying a Cr-based alloy is the method shown in FIG.
Since the hardness Hv600 of the Ni—Cr alloy sprayed layer and the hardness Hv120 of the copper main body have a large difference in hardness, the copper main body is unevenly worn as shown in FIG. It has been found that the usable limit of the step is about 0.2 to 0.3 mm. Also, as disclosed in JP-B-61-15782, Ni
-Measures using a sprayed Cr-based alloy layer have excellent wear resistance, but due to the characteristics of the spraying method, some impurities such as pores and oxides remain in the coating layer, resulting in poor purity of the outermost surface. However, there is a problem of surface seizure at the upper part of the mold in direct contact. In addition, any of the measures disclosed in JP-A-58-205653 and JP-A-58-70943 necessarily increase the internal stress because the mechanism of strengthening the coating layer increases the hardness by the addition of a different element. The use environment of the casting mold is severe, and it has a drawback that when the film thickness is increased, the internal stress increases and cracks easily occur in order to satisfy the wear resistance.
本発明はこの様な従来法の欠点を解消し、銅本体部の
第４図の如き段差の発生や、溶融金属との表面やき付
き、凝固シェルに対する摩耗を全て解決し耐久性に富む
鋳型を提供する事を目的とするものである。The present invention solves such disadvantages of the conventional method, and eliminates the occurrence of steps as shown in FIG. 4 of the copper main body, the surface rubbing with the molten metal, and the abrasion of the solidified shell. It is intended to provide.
＜課題を解決する為の手段＞ 上記従来法の問題点を解決する為に、本発明では次の
如く段差を採用した。即ち、鋳型の略上半部に硬度Hv18
0〜220のNiメッキまたはNi合金メッキ層を施し、鋳型の
略下半部にNi−Cr系合金の溶射層とこの溶射層の表層に
硬度Hv200〜250のNi系溶射層またはNi系合金溶射層を施
し、且つ前記略上半部のNiメッキまたはNi合金メッキ層
の硬度より略下半部のNi系溶射層またはNi系合金溶射層
の硬度を大とすることにより、鋳型の略上半部は純度の
高い表面層を得て耐焼き付け性を向上させることが出来
ると共に当該メッキ層は上部から下部へいくに従い順次
厚膜化して下部程耐摩耗力が得られ、又鋳型の略下半部
は内部応力の小なる表面層が得られ耐摩耗性が向上する
とともに、鋳型中段部の段差の発生を防止出来て耐久性
に富んだ鋳型となる。Niメッキ層又はNi合金メッキ層は
メッキ厚み0.03〜1.0mmで硬度はHv180〜220にする事で
耐焼付き性を有すると共に耐ヒートクラック性も持つ、
なお当該Niメッキ層又はNi合金メッキ層の表面に溶鋼の
スプラッシュ付着防止の為Crメッキをすることもある。
鋳型略下部のNi−Cr系合金溶射層は厚み0.02〜2.0mmで
硬度はHv600〜700で凝固シェルでの摩耗に耐えるもので
あり、当該Ni−Cr系合金溶射層の表面のNi系溶射層また
はNi系合金溶射層は厚み0.03〜1.0mmで硬度はHv200〜25
0に施し略上半部のNiメッキ層またはNi合金メッキ層と
の硬度に近づけて下層のNi−Cr系合金溶射層への仲介層
としての役目をもたせる。<Means for Solving the Problems> In order to solve the problems of the conventional method, the present invention employs the following steps. That is, hardness Hv18
Ni-plated or Ni-alloy plated layer of 0 to 220 is applied, and a Ni-Cr-based alloy sprayed layer and a Hv200-250 hardness Ni-based sprayed layer or Ni-based alloy sprayed on the surface of the sprayed layer of the Ni-Cr-based alloy on the substantially lower half of the mold. By applying a layer, and making the hardness of the Ni-based sprayed layer or Ni-based alloy sprayed layer substantially lower half than the hardness of the Ni-plated or Ni-alloy plated layer substantially the upper half, substantially the upper half of the mold. In the part, a high purity surface layer can be obtained to improve the baking resistance, and the plating layer becomes thicker in order from the upper part to the lower part, so that the lower part has a higher wear resistance, and the lower half of the mold can be obtained. In the part, a surface layer having a small internal stress is obtained, the wear resistance is improved, and the occurrence of a step in the middle part of the mold can be prevented, so that the mold has high durability. The Ni plating layer or Ni alloy plating layer has a plating thickness of 0.03 to 1.0 mm and a hardness of Hv 180 to 220, which has seizure resistance and heat crack resistance.
In addition, Cr plating may be performed on the surface of the Ni plating layer or the Ni alloy plating layer to prevent splash adhesion of molten steel.
The Ni-Cr alloy sprayed layer substantially below the mold has a thickness of 0.02 to 2.0 mm and a hardness of Hv 600 to 700 and withstands wear in the solidified shell, and the Ni-sprayed layer on the surface of the Ni-Cr alloy sprayed layer Alternatively, the Ni-based alloy sprayed layer has a thickness of 0.03 to 1.0 mm and a hardness of Hv 200 to 25.
0 is applied so as to approximate the hardness of the Ni plating layer or Ni alloy plating layer in the upper half part, and to serve as a mediation layer to the lower Ni-Cr alloy sprayed layer.
なお上記上下２段の被覆層を設けた鋳型において、略
上半部に施すNi合金メッキ層としては、NiとCo、Mn、F
e、Ｂ、Ｗ、Ｐのいずれか１種以上のNi合金メッキとす
ると好ましい。In the mold provided with the upper and lower coating layers, the Ni alloy plating layer to be applied to the substantially upper half portion includes Ni, Co, Mn, F
It is preferable to use one or more of Ni alloy plating of e, B, W, and P.
更には、鋳型の略中間部にNiとCo、Mn、Fe、Ｂ、Ｗ、
Ｐのいずれか１種以上のNi合金メッキ層を施し、同じく
鋳型本体の表面上であって略上部にはNiメッキ層または
Ni合金メッキ層を施し、又略下部にはNi−Cr系合金溶射
層を施し鋳型上部から下部にかけて平面的に順次耐焼付
き性、耐摩耗性へと遷移する特徴を持たせた３段の被覆
層を設けることで耐久性に富んだ鋳型となる。当３段構
成の略上部のNiメッキ層またはNi合金メッキ層は厚み0.
03〜1.0mmで硬度はHv180〜220にすることで耐焼付き性
を有すると共に耐ヒートクラック性を持ち、当該Niメッ
キ層またはNi合金メッキ層の表面に溶鋼スプラッシュ付
着防止の為、Crメッキをすることもある。鋳型略中間部
のNi合金メッキ層は厚み0.03〜0.08mmで硬度はHv400〜5
00で略下部のNi−Cr系合金溶射層と略上部のNiメッキ層
またはNi合金メッキ層との仲介層の役目を持たせる。Furthermore, Ni and Co, Mn, Fe, B, W,
P is applied with at least one kind of Ni alloy plating layer, and on the surface of the mold body and substantially above the Ni plating layer or
A three-layer coating with a Ni alloy plating layer and a Ni-Cr alloy sprayed layer at the lower part, with a feature that gradually changes from the upper part to the lower part of the mold to seizure resistance and wear resistance. By providing the layer, a mold having high durability can be obtained. The Ni plating layer or Ni alloy plating layer on the upper part of the three-stage configuration is 0.
03-1.0mm and hardness of Hv180-220 have seizure resistance and heat crack resistance by Hv180-220, and Cr plating to prevent molten steel splash adhesion on the surface of the Ni plating layer or Ni alloy plating layer Sometimes. The Ni alloy plating layer in the middle of the mold has a thickness of 0.03 to 0.08 mm and a hardness of Hv 400 to 5
00 serves as an intermediate layer between the substantially lower Ni-Cr alloy sprayed layer and the substantially upper Ni plating layer or Ni alloy plating layer.
尚略下部のNi−Cr系合金溶射層は厚み0.02〜2.0mmで
硬度Hv600〜700で凝固シェルでの摩耗に耐えるものであ
る。The Ni-Cr-based alloy sprayed layer at the lower portion has a thickness of 0.02 to 2.0 mm, a hardness of Hv 600 to 700, and is resistant to abrasion in the solidified shell.
以上述べた如く鋳型上部から下部にかけて平面的に順
次構成を変えた被覆層を２段ないし３段の構成にするこ
とで鋳型中段部の段差発生を防止出来るとともに上部で
の耐焼付き性から下部での耐摩耗性という特徴を持った
鋳型を提供するものであり、用途に合った耐久性に富ん
だものである。As described above, by forming a coating layer having a two- or three-layer structure in which the structure is sequentially changed from the upper part to the lower part of the mold in a two- or three-stage manner, it is possible to prevent the occurrence of a step in the middle part of the mold and to prevent seizure resistance in the upper part. The present invention provides a mold having a characteristic of abrasion resistance, and has a high durability suitable for a use.
＜実施例＞ 以下本発明をその実施例及び比較例を示し乍ら詳述す
る。第１図に発明の一例を示すが、鋳型の略上半部に厚
み0.3mm、Ni組成99.6％、硬度Hv210のNiメッキ層２を有
し、当該鋳型の略下半分にNi−Cr系合金溶射層３を有
し、当該Ni−Cr系合金溶射層の上方部は厚み0.3mmであ
り下方部に至るに従い漸次厚くなし最下部で0.6mmであ
り、硬度はHv590である。さらに当該Ni−Cr系合金溶射
層の表面に厚み0.1mmで硬度Hv355のNi系溶射層４を有す
る鋳型である上記Ni−Cr系合金溶射の成分は重量％でCr
14.0、Fe4.3、Si3.6、B3.8、C0.68残重量％でFe0.75、C
0.1、Si3.0、B1.3、残Niとなったものである。<Examples> Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples. FIG. 1 shows an example of the present invention. The mold has a Ni plating layer 2 having a thickness of 0.3 mm, a Ni composition of 99.6% and a hardness of Hv210 in a substantially upper half of the mold, and a Ni-Cr alloy in a substantially lower half of the mold. The thermal sprayed layer 3 has a thickness of 0.3 mm at the upper portion of the Ni-Cr alloy sprayed layer, gradually becomes thicker toward the lower portion, and is 0.6 mm at the lowermost portion, and the hardness is Hv590. Further, the composition of the Ni-Cr-based alloy spray, which is a mold having a Ni-based sprayed layer 4 having a thickness of 0.1 mm and a hardness of Hv 355 on the surface of the Ni-Cr-based alloy sprayed layer, is expressed by weight% of Cr.
14.0, Fe4.3, Si3.6, B3.8, C0.68 Fe0.75, C at residual weight%
0.1, Si3.0, B1.3 and remaining Ni.
更に第２図に発明の他の一例を示すが、鋳型の略上部
に厚み0.3mmNi組成99.4％硬度Hv208のNiメッキ層２を有
し、鋳型の略中間部に厚み0.3mmで硬度Hv340で組成とし
ては重量％でFe3.8残Niから成るFe−Ni合金メッキ層５
を有し、略下部に厚み1.0mm硬度Hv380のNi−Cr系合金溶
射層３を有し当該Ni−Cr系合金溶射層の成分は重量％で
Cr14.3、Fe4.28、Si3.6、B3.1、C0.7、Cu1.67、Mo1.7
5、Ni残となったものである。FIG. 2 shows another example of the invention, in which a Ni plating layer 2 having a thickness of 0.3 mm and a Ni composition of 99.4% hardness Hv208 is provided substantially at the upper part of the mold, and a composition having a thickness of 0.3 mm and a hardness of Hv340 is provided substantially at the middle part of the mold. Fe-Ni alloy plating layer 5 composed of Fe3.8 remaining Ni by weight%
And having a Ni-Cr-based alloy sprayed layer 3 having a thickness of 1.0 mm and a hardness of Hv380 substantially at the lower part, and the components of the Ni-Cr-based alloy sprayed layer are expressed in weight%
Cr14.3, Fe4.28, Si3.6, B3.1, C0.7, Cu1.67, Mo1.7
5. Ni remains.
一方旧法は第３図に示す如くNi−Cr系合金溶射層であ
るが為に耐焼付き性がなく上方部には適用出来ず略下部
以下に0.3mmから最下部で1.0mmの溶射層を施したもので
あった。旧法の耐用度は表層の溶射層が摩耗し母材のCu
が露出するか若しくはCu母体が露出する前に上半部と下
半部の遷移部に第４図に示す如くＳ＝0.2〜0.3mmの段差
がつくかである。これら本発明の実施例と旧方の実用上
見いだした耐用度を示せば下表の通りである。On the other hand, the old method is a Ni-Cr alloy sprayed layer as shown in Fig. 3 and therefore has no seizure resistance and cannot be applied to the upper part. It was done. The durability of the old method is that the surface sprayed layer wears out and the base metal Cu
Is exposed or a step of S = 0.2 to 0.3 mm is formed at the transition between the upper half and the lower half before the Cu matrix is exposed, as shown in FIG. The following table shows the practical use of the examples of the present invention and the old ones.
上記表で1chとは溶鋼量的には175tonに相当するもの
として換算したものである。 In the above table, 1ch is converted as equivalent to 175 tons in molten steel amount.
＜発明の効果＞ 以上述べてきた様に、本発明の連続鋳造用鋳型は鋳型
中段部の段差の発生を防止出来るとともに上部は耐摩耗
性と耐焼付き性を兼備しながら下部になるに従って耐摩
耗性を強く持った用途の要求によく合致した機能を提供
する耐久性に富んだものである。<Effects of the Invention> As described above, the continuous casting mold of the present invention can prevent the occurrence of a step in the middle part of the mold, and at the same time, has an abrasion resistance in the lower part while having both abrasion resistance and seizure resistance. It is highly durable and provides functions that meet the requirements of applications with strong properties.
【図面の簡単な説明】 第１図は本発明の実施例の１つを示す説明図、第２図は
本発明の他の実施例を示す説明図、第３図は旧法の実施
例で第４図は第３図即ち旧法の段差摩耗の使用限界を示
す図である。 図中1:鋳型基材（銅又は銅合金） 2:Niメッキ層若しくはNi合金メッキ層 3:Ni−Cr系合金系溶射層 4:Ni溶射層 5:Ni合金メッキ層BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing one embodiment of the present invention, FIG. 2 is an explanatory view showing another embodiment of the present invention, and FIG. 3 is an embodiment of the old method. FIG. 4 is a diagram showing the use limit of step wear of the old method in FIG. In the figure 1: Mold base material (copper or copper alloy) 2: Ni plating layer or Ni alloy plating layer 3: Ni-Cr alloy spraying layer 4: Ni spraying layer 5: Ni alloy plating layer
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B22D 11/04 312 Continuation of front page (58) Field surveyed (Int. Cl. 6 , DB name) B22D 11/04 312
Claims (5)
って、鋳型の略上半部に硬度Hv180〜220のNiメッキまた
はNi合金メッキ層を施し、一方同じく鋳型本体の表面上
であって鋳型の略下半部には硬度Hv600〜700のNi−Cr系
合金の溶射層とこれらの溶射層の表層に硬度Hv200〜250
のNi系溶射層またはNi系合金溶射層が施され、且つ前記
上半部のNiメッキまたはNi合金メッキ層の硬度より略下
半部のNi系溶射層またはNi系合金溶射層の硬度が大とな
っていることを特徴とする連続鋳造用鋳型。An Ni plating or Ni alloy plating layer having a hardness of Hv180 to 220 is applied to a surface of a copper or copper alloy mold main body, and a substantially upper half portion of the mold is formed on the surface of the mold main body. The lower half of the mold has a sprayed layer of a Ni-Cr alloy having a hardness of Hv600 to 700 and a hardness of Hv200 to 250 on the surface layer of these sprayed layers.
Ni-based thermal spraying layer or Ni-based alloy thermal spraying layer is applied, and the hardness of the lower half Ni-based thermal spraying layer or Ni-based alloy thermal spraying layer is substantially higher than the hardness of the upper half Ni-plated or Ni alloy coated layer. A continuous casting mold, characterized in that:
Ｗ、Ｐのいずれか１種以上のNi合金メッキ層としたこと
を特徴とする請求項１に記載の連続鋳造用鋳型。2. A Ni alloy plating layer comprising Ni, Co, Mn, Fe, B,
The continuous casting mold according to claim 1, wherein a Ni alloy plating layer of at least one of W and P is used.
−Cr系合金溶射層の一方又は両方が、上部から下部に向
けて順次厚肉となっていることを特徴とする請求項１若
しくは請求項２に記載の連続鋳造用鋳型。3. A Ni plating layer or a Ni alloy plating layer and Ni
The casting mold for continuous casting according to claim 1 or 2, wherein one or both of the -Cr-based alloy sprayed layers are sequentially thicker from an upper portion to a lower portion.
って、鋳型の略上部に硬度Hv180〜220のNiメッキ層を、
鋳型の略中間部に硬度Hv400〜500のNiとCo、Mn、Fe、
Ｂ、Ｗ、Ｐのいずれか１種以上のNi合金メッキ層を施
し、又略下部には硬度Hv600〜700のNi−Cr系合金溶射層
をそれぞれ施し、Niメッキ層、Ni合金メッキ層、Ni−Cr
系合金溶射層の順で下部にいくに従って硬度が大となっ
ていることを特徴とする連続鋳造用鋳型。4. A Ni plating layer having a hardness of Hv 180 to 220 on a surface of a copper or copper alloy mold main body and substantially above the mold,
In the middle part of the mold, Ni and Co, Mn, Fe,
B, W, or P is applied with at least one kind of Ni alloy plating layer, and a Ni-Cr alloy sprayed layer having a hardness of Hv 600 to 700 is applied substantially below the Ni alloy plating layer. −Cr
A continuous casting mold characterized in that the hardness increases as it goes to the lower part in the order of the base alloy sprayed layer.
て順次厚肉となっていることを特徴とする請求項４に記
載の連続鋳造用鋳型。5. The continuous casting mold according to claim 4, wherein the thermal sprayed Ni-Cr alloy layer is gradually thicker from the upper part to the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20761589A JP2895100B2 (en) | 1989-08-09 | 1989-08-09 | Continuous casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20761589A JP2895100B2 (en) | 1989-08-09 | 1989-08-09 | Continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0371955A JPH0371955A (en) | 1991-03-27 |
| JP2895100B2 true JP2895100B2 (en) | 1999-05-24 |
Family
ID=16542725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20761589A Expired - Fee Related JP2895100B2 (en) | 1989-08-09 | 1989-08-09 | Continuous casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2895100B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1212159E (en) * | 1999-08-26 | 2003-10-31 | Concast Standard Ag | FUNDING MOLD FOR CONTINUOUS LEAKING OF ACO IN GROSS BARS AND FORMS OF PRE-LAMINATED BARS. |
-
1989
- 1989-08-09 JP JP20761589A patent/JP2895100B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0371955A (en) | 1991-03-27 |
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