JPS62252640A - Mold for continuous casting - Google Patents
Mold for continuous castingInfo
- Publication number
- JPS62252640A JPS62252640A JP9635986A JP9635986A JPS62252640A JP S62252640 A JPS62252640 A JP S62252640A JP 9635986 A JP9635986 A JP 9635986A JP 9635986 A JP9635986 A JP 9635986A JP S62252640 A JPS62252640 A JP S62252640A
- Authority
- JP
- Japan
- Prior art keywords
- plating
- base
- continuous casting
- alloy
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 20
- 238000007747 plating Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 239000010953 base metal Substances 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims description 28
- 229910052802 copper Inorganic materials 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 23
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 8
- 229910017060 Fe Cr Inorganic materials 0.000 abstract description 7
- 229910002544 Fe-Cr Inorganic materials 0.000 abstract description 7
- 229910052804 chromium Inorganic materials 0.000 abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002356 single layer Substances 0.000 abstract description 4
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 229910019589 Cr—Fe Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 229910018106 Ni—C Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000245665 Taraxacum Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/059—Mould materials or platings
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〕
本発明は連続鋳造に使用する連続鋳造用鋳型のＣｕ系母
材表面にＮｉ基、Ｃｏ基、Ｆｅ基の耐熱耐食合金を被覆
させた連続鋳造用鋳型に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a continuous casting mold in which the surface of a Cu-based base material of a continuous casting mold used for continuous casting is coated with a Ni-based, Co-based, or Fe-based heat-resistant and corrosion-resistant alloy. Regarding casting molds.
連続鋳造用鋳型はダンディシニから流れ込まｈた溶鋼を
凝固させ連続的に鋳片を型心するものである。Continuous casting molds are used to solidify molten steel that has flowed in from a dandelion and continuously form slabs.
連続鋳造用鋳型の強度及び抜熱特性から連続鋳造用鋳型
材質としては一般に銅が用いられている。Copper is generally used as a material for continuous casting molds due to its strength and heat removal properties.
銅母材は鋳片との接触により、連続鋳造用鋳型上部では
ヒートクラック、連続鋳造用鋳型下部では摩耗及び腐食
等の損傷を受ける。Due to contact with the slab, the copper base material suffers damage such as heat cracks in the upper part of the continuous casting mold and wear and corrosion in the lower part of the continuous casting mold.
従来、この連続鋳造用鋳型の寿、全向上及び耐熱耐食性
を強化する方法としては銅母材の材質自体を改善する方
法と被覆により特性を付加する方法がとられている。こ
の銅母材の材質改善方法としては銅母材を脱酸銅、銀入
り銅、析出硬化型銅（Ｃｒ−Ｃｕ、Ｃｒ−Ｚｒ−Ｃｕ
）とする方法がある。Conventionally, methods for improving the longevity and overall heat and corrosion resistance of continuous casting molds include improving the copper base material itself and adding properties through coating. Methods for improving the material quality of this copper base material include deoxidizing copper, silver-containing copper, and precipitation hardening copper (Cr-Cu, Cr-Zr-Cu).
).
又、後者の被ダする方法としてはメッキ法、溶射法があ
る。The latter coating method includes a plating method and a thermal spraying method.
メッキ法では、Ｃｒメッキ、Ｎｉメッキ等の単層コーテ
ィングやＮｉメッキ上にＣｒメッキを重ねる二層コーテ
ィング、さらにはＮｉメッキとＣｒメッキ間にさらに、
もう一層設けた、三層コーティングを施す方法があり、
溶射法ではＮｉ−Ｃｒ合金を溶射してＮｉ−Ｃｒ合金層
を被覆形成する方法及びこれらの方法１こよって製造さ
れた連続鋳造用鋳型が知られている。Plating methods include single-layer coating such as Cr plating and Ni plating, double-layer coating of Cr plating on top of Ni plating, and further coating between Ni plating and Cr plating.
There is a method of applying a three-layer coating, which has an additional layer.
As for the thermal spraying method, a method of thermally spraying a Ni--Cr alloy to form a Ni--Cr alloy layer and a mold for continuous casting manufactured by these method 1 are known.
（発明が解決しようとする問題点〕
前者のＣｒメッキ、Ｎｉメッキの単層コーティング方法
では純金属の特性から合金にくらべて軟化点が低く高温
での使用には限界があり、又、特定の環境下では耐食性
を有するが種々の条件下で広範囲な耐食性を有していな
い３ Ｎｉメッキ＋Ｃｒメッキ等の二層又は三層コーテ
ィングでは各金属を単に積層しただけであり、諸特性の
相乗効果は期待できない。これでは充分に耐熱性、耐食
性を得ることができず、例えばインコネルなどの様な耐
熱耐食に著しく優れたＮｉ−Ｃｒ又はＣｏ−Ｃｒ、Ｎ１
−Ｇｏ−Ｃｒ、Ｆｅ−Ｃｒ。(Problems to be solved by the invention) In the former single-layer coating method of Cr plating and Ni plating, due to the characteristics of pure metals, their softening point is lower than that of alloys, so there is a limit to their use at high temperatures. Although it has corrosion resistance in the environment, it does not have a wide range of corrosion resistance under various conditions.3 In two-layer or three-layer coatings such as Ni plating + Cr plating, each metal is simply laminated, and the synergistic effect of various properties is This cannot be expected. With this, sufficient heat resistance and corrosion resistance cannot be obtained.
-Go-Cr, Fe-Cr.
Ｎｉ−Ｆｅ−Ｃｒ合金を母材表面シ；形成させることが
望ましいとされている。又後者は溶射後皮膜緻密化のた
め再溶融熱処理が必要でＣｕ母材の材質が析出硬化型に
限定され、加工が面倒であり、長時間の熱処理が必要で
あり父母材との密着性を広い面積で均一に得るためには
、高度な技術を要するといった問題点があった。It is considered desirable to form a Ni-Fe-Cr alloy on the surface of the base material. In addition, the latter requires remelting heat treatment to densify the coating after thermal spraying, and the material of the Cu base material is limited to a precipitation hardening type, making processing cumbersome, requiring long heat treatment, and reducing adhesion to the parent material. There was a problem in that sophisticated technology was required to obtain uniformly over a wide area.
本発明はかかる連続鋳造用鋳型のＣｕ母材へのＮｉ基、
θ基、Ｆｅ基合金を密着性良く被覆させることによって
耐熱性耐食性を高めた連続鋳造用鋳型を提供せんとする
ものであり、その要旨は連続鋳造用鋳型の銅又は銅合金
母材に耐熱耐食性合金のベース金属となるＮｉ基、θ基
又はＦｅ基メッキを下地として施し、その上面にＣ【メ
ッキを被着し、その後レーザービームを照射して両メッ
キ層を合金化することによって耐熱性耐食性を付与した
連続鋳造用鋳型にある。The present invention provides a Ni base on the Cu base material of such a continuous casting mold,
The purpose is to provide a continuous casting mold that has improved heat resistance and corrosion resistance by coating with θ-based and Fe-based alloys with good adhesion. Ni-based, θ-based, or Fe-based plating, which is the base metal of the alloy, is applied as a base, and then C plating is applied on the top surface, and then a laser beam is irradiated to alloy both plating layers, thereby achieving heat resistance and corrosion resistance. It is in a continuous casting mold that has been given.
本発明ではＣｕ母材の表面舎こＮｉ基、Ｃｏ基、 Ｆｅ
基いずれかのメッキ＆１０〜６０００μ程の厚みをベー
ス金属として施し、その後Ｃｒメッキを行なうが、これ
らベース金属のメッキとＣｒメッキの厚さは所定のＮｉ
基、■基、Ｆｅ基合金の成分配合となる様に予め調整し
ておく。その後に炭酸ガスレーザーの如く高出力のレー
ザービームを１０２〜１０６ジエール／ ｃｄのエネル
ギー密度で照射してベース金属の下地メッキ層とＣｒメ
ッキ層とを溶解させてＮｉ−Ｃｒ、Ｃｏ−Ｃｒ、Ｎｉ−
Ｃｏ−Ｃｒ、Ｆｅ−Ｃｒ、Ｎｉ−Ｆｅ−Ｃｒ合金等を形
成させる。In the present invention, the surface of the Cu base material is Ni-based, Co-based, Fe-based.
The base metal is plated to a thickness of about 10 to 6000 μm, and then Cr plating is performed, but the thickness of these base metal plating and Cr plating is set to the specified Ni plating thickness.
The composition of the alloys is adjusted in advance so as to have a composition of base, (2), and Fe-based alloys. After that, a high-power laser beam such as a carbon dioxide laser is irradiated with an energy density of 102 to 106 g/cd to melt the base metal plating layer and the Cr plating layer to form Ni-Cr, Co-Cr, Ni. −
Co-Cr, Fe-Cr, Ni-Fe-Cr alloys, etc. are formed.
この合金によって単層、複層メッキのメッキ単味では得
られない特性が追加され、強力に耐熱、耐食性を得るも
のである。しかもＣｕ又はＣｕ合金母材とは母材との合
金層を形成することによって母材と完全に一体化して強
固に密着する。This alloy adds properties that cannot be obtained with single-layer or multi-layer plating, and provides strong heat resistance and corrosion resistance. Furthermore, by forming an alloy layer with the base material, the Cu or Cu alloy base material is completely integrated with the base material and firmly adheres to the base material.
この発明の方法では母材は合金銅以外に純銅でも採用で
き、銅板の材質が限定されない。In the method of this invention, pure copper can be used as the base material in addition to alloyed copper, and the material of the copper plate is not limited.
以下実施例？もって説明する。 Examples below? Let me explain.
■実施例
実施例は鋳型の母材として脱酸銅を使用し、これに下表
のＮｉメッキとＮｉ−Ｆｅメッキの二層メッキの上にＣ
ｒメッキを施してレーザー照射して母材表面にＮｉ−Ｃ
ｒ−Ｆｅ合金を形成した連続鋳造用鋳型の倒である。■Example In the example, deoxidized copper is used as the base material of the mold, and on top of the two-layer plating of Ni plating and Ni-Fe plating shown in the table below.
Ni-C is applied to the surface of the base material by R plating and laser irradiation.
This is an inverted version of a continuous casting mold in which r-Fe alloy was formed.
１）材質
第１図参照
図中（１）はＣｒ）ｙキ、（２）はＮｉ−１０％Ｆｅメ
ッキ、（３）はＮｉメッキ、（４）は脱酸銅の銅母材を
示す。1) Materials Refer to Figure 1. In the diagram, (1) is Cr), (2) is Ni-10% Fe plating, (3) is Ni plating, and (4) is the copper base material of deoxidized copper.
２）レーザー照射条件 出カニ ４００Ｗ。2) Laser irradiation conditions Crab 400W.
スキャニング幅二〇、５ ｙｘｍ
ビーム移動速度＋１００＋＋ｎ／分
エネルギー密度：約１０５〜１０ ’Ｗ ／ ｃＡ３）
レーザー照射後の鋳型の組織状況
レーザー参照後の状態の略図を第２図に示している。結
果はＮｉメッキ、Ｎｉ Ｆｅメッキ、Ｃｒメッキが完全
に均一に溶融した６ＯＮｉ−３０Ｃｒ−１０Ｆｅの合金
層（５）が形成された。この合金層では気孔は殆んどな
かった。又Ｃｕ母材の熱形うによる組織変化はなかった
。合金層と脱酸銅の母材との間には５〜１０／Ｉ７の厚
みのＣｕ−Ｎｉ合金層（６）が形成された。Scanning width 20.5 yxm Beam movement speed +100++n/min Energy density: approx. 105~10'W/cA3)
Structure of the mold after laser irradiation A schematic diagram of the state after laser reference is shown in FIG. As a result, a 6ONi-30Cr-10Fe alloy layer (5) was formed in which Ni plating, Ni Fe plating, and Cr plating were completely and uniformly melted. This alloy layer had almost no pores. Furthermore, there was no structural change due to thermal shaping of the Cu base material. A Cu--Ni alloy layer (6) having a thickness of 5 to 10/I7 was formed between the alloy layer and the deoxidized copper base material.
４）特性
メニスカス部のヒートクラック防止及び溶融パウダーに
よる腐食防止に効果的となった。4) Characteristics Effective in preventing heat cracks in the meniscus and corrosion caused by molten powder.
溶融パウダーによる腐食防止についてはテストピースを
用いて第３図の浸漬テストを行なった。母材をこ１００
ｐＮｔメッキと５０７ン入Ｃｒメツキしたものと比較
した結果は下記の通りになって溶融パウダー枦こよる腐
食にも優れていることが立証された。Regarding corrosion prevention using molten powder, a test piece was used to perform the immersion test shown in Figure 3. Base material 100
The results of a comparison between pNt plating and 507 Cr plating are as follows, proving that it is excellent in corrosion caused by molten powder.
第３図中入＋５１はるつぼ、（６）は溶融パウダー、（
７）試材、（８）はヒーターである。Figure 3: Inside +51 is a crucible, (6) is a molten powder, (
7) Sample material (8) is a heater.
テストピース１０ｈ ｒ浸漬
５）その他
第４図ｔこ示す様に連続鋳造用鋳型の脱酸銅母材の腐食
環境の思い下部のみにＮｉ−Ｆｅ−Ｃｒ合金層を形成す
ることも可能である。Test piece 10 hours immersion 5) Others As shown in Figure 4, it is also possible to form a Ni-Fe-Cr alloy layer only in the corrosive environment of the deoxidized copper base material of the continuous casting mold.
又、第５図に示す様に母材の保護及び腐食性の向上のた
めＮｉ−Ｃｒ−Ｆｅ合金の下端捲込み（９）・側面捲込
み（１１をすることが望ましい。Further, as shown in FIG. 5, it is desirable to roll the Ni-Cr-Fe alloy at the lower end (9) and at the side (11) in order to protect the base material and improve corrosion resistance.
以上の様に本発明によれば従来技術と比較して加工が容
易であり所要目的とする超合金の成分比率のＮｉ基、α
基、Ｆｅ基合金をＣｕ母材に密着力よく被覆形成でき、
連続鋳造用鋳型の耐熱、耐食性を大巾に改善できた。As described above, according to the present invention, processing is easier compared to the conventional technology, and the composition ratio of Ni base, α
The Fe-based alloy can be coated with good adhesion to the Cu base material,
We were able to significantly improve the heat resistance and corrosion resistance of continuous casting molds.
第１図は本発明の実施例のレーザー照射前の鋳型の組織
を示す断面図、第２図は銅レーザー照射後の鋳型の組織
を示す断面図、第３図は溶融パウダーによる浸漬テスト
方法を示す説明図、第４図は一部被覆の鋳型を示す説明
図、第５図は合金層の捲き込みを示す説明図である。
（１）：Ｃｒメッキ
（２）：Ｎｉ−１０％Ｆｅメ ッ キ
（３）二 Ｎｉメ ッ キ
（４）：脱酸銅の銅母材
＋５） ： Ｎｉ−Ｃｒ−Ｆｅ合金層
ｆ６）：Ｃｕ−Ｎｉ合金層
特許出願人 三島光産株式会社
代 理 人 戸 島 省
四 部第１図 第２図
第３図
第４図
第５図Fig. 1 is a cross-sectional view showing the structure of the mold before laser irradiation according to an example of the present invention, Fig. 2 is a cross-sectional view showing the structure of the mold after copper laser irradiation, and Fig. 3 is a sectional view showing the immersion test method using molten powder. FIG. 4 is an explanatory diagram showing a partially covered mold, and FIG. 5 is an explanatory diagram showing rolling of an alloy layer. (1): Cr plating (2): Ni-10%Fe plating (3) Ni plating (4): Copper base material of deoxidized copper +5): Ni-Cr-Fe alloy layer f6): Cu-Ni alloy layer patent applicant: Mishima Kosan Co., Ltd. Agent: Sho Toshima
Part 4 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
金のベース金属となるＮｉ基、Ｃｏ基又はＦｅ基メッキ
を下地として施し、その上面にＣｒメッキを被着し、そ
の後レーザービームを照射して両メッキ層を合金化する
ことによって耐熱性耐食性を付与した連続鋳造用鋳型。1) Ni-based, Co-based, or Fe-based plating, which is the base metal of the heat-resistant and corrosion-resistant alloy, is applied to the copper or copper alloy base material of the continuous casting mold as a base, and Cr plating is applied to the upper surface, and then a laser beam is applied. A continuous casting mold that has been given heat and corrosion resistance by irradiating both plating layers to alloy them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9635986A JPS62252640A (en) | 1986-04-24 | 1986-04-24 | Mold for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9635986A JPS62252640A (en) | 1986-04-24 | 1986-04-24 | Mold for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62252640A true JPS62252640A (en) | 1987-11-04 |
Family
ID=14162796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9635986A Pending JPS62252640A (en) | 1986-04-24 | 1986-04-24 | Mold for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62252640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388832A (en) * | 2021-05-24 | 2021-09-14 | 浙江大学 | Copper-based composite material with high-hardness conductive surface and laser additive manufacturing method thereof |
-
1986
- 1986-04-24 JP JP9635986A patent/JPS62252640A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388832A (en) * | 2021-05-24 | 2021-09-14 | 浙江大学 | Copper-based composite material with high-hardness conductive surface and laser additive manufacturing method thereof |
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