JPH04322860A - Method for cast-wrapping plate material - Google Patents
Method for cast-wrapping plate materialInfo
- Publication number
- JPH04322860A JPH04322860A JP9225291A JP9225291A JPH04322860A JP H04322860 A JPH04322860 A JP H04322860A JP 9225291 A JP9225291 A JP 9225291A JP 9225291 A JP9225291 A JP 9225291A JP H04322860 A JPH04322860 A JP H04322860A
- Authority
- JP
- Japan
- Prior art keywords
- cast
- casting
- mold
- temp
- temperature
- 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
- 239000000463 material Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 238000005304 joining Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、板材の鋳包み方法に関
し、詳細には、鋳造品の表面所望部分に異種材料を接合
するための板材の鋳包み方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for casting in plate materials, and more particularly, to a method for casting in plate materials for joining dissimilar materials to a desired portion of the surface of a cast product.
【０００２】0002
【従来の技術】従来より製品の表面所望部分に、例えば
耐摩耗性、耐食性、耐熱性などの特殊な性質を付与する
場合に、異種材料の接合が行われている。その場合の接
合方法は、圧延クラッド法、熱間静水圧（ＨＩＰ）によ
る拡散接合法、溶接法、鋳造による鋳包み法などが採用
されている。BACKGROUND OF THE INVENTION Conventionally, dissimilar materials have been joined to impart special properties such as wear resistance, corrosion resistance, heat resistance, etc. to a desired surface of a product. In this case, a rolling cladding method, a diffusion bonding method using hot isostatic pressure (HIP), a welding method, a cast-in method using casting, etc. are employed as a joining method.
【０００３】圧延クラッド法は、製品形状が板状のもの
の場合に多く用いられ、その他の方法は、製品形状が複
雑なものの場合に多く用いられている。中でも、溶接法
と鋳包み法は、実施が容易であり、比較的安価に実施で
きることからよく使われている。[0003] The rolling cladding method is often used when the product shape is plate-like, and other methods are often used when the product shape is complex. Among these, the welding method and the cast-in method are often used because they are easy to implement and can be implemented at relatively low cost.
【０００４】0004
【発明が解決しようとする課題】ところで、上記鋳包み
法は、図３に示すように、所望部位に鋳包み材 （１）
を配置した製品キャビティ （２）を有する鋳型 （３
）を形成し、この鋳型 （３）の湯口 （４）より鋳込
み材を注湯し、必要により押湯 （５）を設けて鋳造を
行うものであるが、この鋳包み法においては、鋳包み材
（１）が板状の場合、図４に示すように、鋳込み材
（６）と鋳包み材 （１）の、鋳型 （３）に接触する
外表面の境界部分 （７）に凹み （８）ができ易く、
見映えが悪く、境界面を滑らかにする作業が必要になる
。また凹み （８）が発生すると、十分な接合強度が得
られないことがある。[Problems to be Solved by the Invention] By the way, in the cast-in method described above, as shown in FIG.
A mold (3) having a product cavity (2) with a
), pour the casting material through the sprue (4) of this mold (3), and if necessary, provide a riser (5) for casting. When the material (1) is plate-shaped, as shown in Figure 4, the cast material
(6) and the cast-in material (1), the boundary part (7) of the outer surface that contacts the mold (3) is likely to form a dent (8),
It looks bad and requires work to smooth the interface. Furthermore, if a dent (8) occurs, sufficient bonding strength may not be obtained.
【０００５】この凹み （８）が発生する部位は、鋳包
み材 （１）と鋳型 （３）とのコーナ部に当たるため
、鋳型 （３）に注湯された溶湯〔鋳込み材 （６）〕
が冷却され易く、このために鋳込み材 （６）側の境界
部が表層まで融着せず凹み （８）が発生するもので、
この問題に対処して、鋳込み材 （６）の鋳込み温度、
鋳型 （３）の温度および鋳包み材 （１）の温度をコ
ントロールして鋳造が行われている。しかし鋳型 （３
）の温度および鋳包み材 （１）の温度を高くするには
、鋳込みのタイミング、鋳型の種類および加熱手段の扱
いなどにより限界がある。[0005] The area where this dent (8) occurs is the corner of the cast-in material (1) and the mold (3), so the molten metal poured into the mold (3) [cast-in material (6)]
is easily cooled, and for this reason, the boundary part on the side of the cast material (6) is not fused to the surface layer, causing a dent (8).
To deal with this problem, the casting temperature of the casting material (6),
Casting is performed by controlling the temperature of the mold (3) and the temperature of the cast-in material (1). But the mold (3
) and cast-in material There are limits to increasing the temperature of (1) depending on the timing of casting, type of mold, handling of heating means, etc.
【０００６】そこで、本発明では、上記の問題点に鑑み
、鋳型の温度や鋳包み材の温度を高温に上げることなく
、鋳込み材と鋳包み材の、鋳型に接触する外表面の境界
部分に発生する凹みを防止するとともに、十分な接合強
度が得られる板材の鋳包み方法を提供することを目的と
するものである。Therefore, in view of the above-mentioned problems, in the present invention, without raising the temperature of the mold or the temperature of the cast-in material to a high temperature, the boundary portion of the outer surface of the casting material and the cast-in material that contacts the mold is heated. It is an object of the present invention to provide a method for casting in plate materials that prevents dents from occurring and provides sufficient bonding strength.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明に係わる板材の鋳包み方法は、金属板の一
広面を残して他を金属溶湯に鋳包む方法において、金属
板の外周面に、１５°〜４５°の角度で５ｍｍ以上の長
さの外広がりの傾斜を設けるとともに、溶湯を下記鋳込
み温度Ｔｐで注湯して金属板を鋳包むものである。
Ｔｐ＞Ｔｍ＋１５０℃
ただし、Ｔｍ：金属板の融点[Means for Solving the Problems] In order to achieve the above object, the method of casting a sheet material according to the present invention is a method of casting a metal sheet into molten metal while leaving one wide surface of the metal sheet. The outer circumferential surface is provided with an outwardly expanding slope with a length of 5 mm or more at an angle of 15° to 45°, and the metal plate is cast by pouring molten metal at the following casting temperature Tp. Tp>Tm+150°C, where Tm: melting point of metal plate
【０００８】[0008]
【作用】本発明では、金属板の外周面に、１５°〜４５
°の角度で５ｍｍ以上の長さの外広がりの傾斜を設け、
鋳型に接触する側をエッジ状に形成するとともに、鋳込
まれる溶湯温度を、鋳包み材（金属板）の融点Ｔｍより
１５０℃以上高い温度にして鋳込むものであるから、エ
ッジ部が完全溶融し、鋳込み材と鋳包み材の、鋳型に接
触する外表面の境界部分に発生する凹みが防止でき、且
つ十分な接合強度が得られる。[Function] In the present invention, the outer peripheral surface of the metal plate has an angle of 15° to 45°.
Providing an outwardly expanding slope with a length of 5 mm or more at an angle of °,
The side that contacts the mold is formed into an edge shape, and the molten metal is cast at a temperature that is 150°C or more higher than the melting point Tm of the cast-in material (metal plate), so the edge part is completely melted. It is possible to prevent dents from occurring at the boundary between the outer surfaces of the casting material and the cast-in material that contact the mold, and to obtain sufficient joint strength.
【０００９】そして、エッジ部の角度が４５°を超えた
もの、あるいは長さが５ｍｍ未満のものでは、エッジ部
の完全溶融部の量が少なくなり上記作用が得にくくなる
。[0009] If the angle of the edge portion exceeds 45° or the length is less than 5 mm, the amount of completely fused portions at the edge portion will be small, making it difficult to obtain the above effect.
【００１０】また、溶湯の鋳込み温度Ｔｐを、鋳包み材
（金属板）の融点Ｔｍ＋１５０℃より高い温度とするの
は、この温度以下では鋳包み材のエッジ部が完全溶融せ
ず、凹みを完全に防止することができないためと、エッ
ジ部以外の部分における溶融拡散が期待できなくなるた
めである。一方、溶湯の鋳込み温度Ｔｐの上限は、特に
限定するものではないが、省エネおよび溶解炉の耐火物
の寿命を考慮して定めることが好ましい。[0010] Furthermore, the reason why the casting temperature Tp of the molten metal is set higher than the melting point Tm + 150°C of the cast-in material (metal plate) is that below this temperature, the edges of the cast-in material will not completely melt, and the dents will not be completely melted. This is because melting and diffusion cannot be expected in areas other than the edge portions. On the other hand, the upper limit of the molten metal casting temperature Tp is not particularly limited, but is preferably set in consideration of energy saving and the life of the refractory of the melting furnace.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面を参照して説明
する。図１は、本発明に係わる板材の鋳包み方法に適用
する鋳型および鋳包み材の説明図であって、鋳型 （３
）は常法により成形されたもので、前述した従来の技術
の項で説明した鋳型 （３）と同じ構成のものである。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a mold and a cast-in material applied to the method of casting a plate material according to the present invention, and shows the mold (3
) is molded by a conventional method and has the same structure as the mold (3) explained in the prior art section above.
【００１２】上記鋳型 （３）内の所望位置に配置され
た鋳包み材 （１）には、図１（ｂ）に拡大して示すよ
うに、鋳包み材 （１）の外周面（１Ａ）に、角度α（
１５°〜４５°）で、長さＬ（５ｍｍ以上）の外広がり
の傾斜が付けられ、鋳型 （３）に接触する側がエッジ
状に形成されている。The cast-in material (1) placed at a desired position in the mold (3) has an outer circumferential surface (1A) of the cast-in material (1), as shown in an enlarged view in FIG. 1(b). , the angle α(
15° to 45°) and an outwardly expanding inclination of length L (5 mm or more), and the side that contacts the mold (3) is formed into an edge shape.
【００１３】次に、上記の如く構成した鋳型 （３）を
用いて、鋳包み材（１）の角度αと鋳込み材 （６）の
鋳込み温度Ｔｐを変えて鋳込みを行った。この時の諸条
件は以下の通りである。
・鋳包み材の材質：Ｎｉ基超合金（融点Ｔｍ：１２９０
℃）
・鋳込み材の材質：Ｎｉ−Ｃｒ系高合金鋼（融点：１２
７０℃）
・鋳造品サイズ ：幅２５０ｍｍ×奥行き３００ｍｍ
×高さ５５ｍｍ
・鋳込み温度Ｔｐ：Ｔｍ＋１００℃，Ｔｍ＋１５０℃，
Ｔｍ＋２００℃
・角度α ：１５°，３０°，４５°，
６０°，７５°，９０°Next, using the mold (3) constructed as described above, casting was carried out by changing the angle α of the cast-in material (1) and the casting temperature Tp of the material to be cast (6). The conditions at this time are as follows.・Material of cast-in material: Ni-based superalloy (melting point Tm: 1290
℃) ・Material of casting material: Ni-Cr based high alloy steel (melting point: 12
70℃) ・Casting product size: Width 250mm x depth 300mm
×Height 55mm ・Casting temperature Tp: Tm+100℃, Tm+150℃,
Tm+200℃ ・Angle α: 15°, 30°, 45°,
60°, 75°, 90°
【００１４】上記鋳込み完了後、型ばらしして得られた
鋳物の鋳包み材 （１）と鋳込み材 （６）の境界を目
視観察した。その結果を表１に示す。表中、○：完全融
着、凹みなし、△：一部に未融着、凹みなし、×：融着
せず、凹みあり、をそれぞれ示す。[0014] After completion of the casting, the boundary between the cast-in material (1) and the cast material (6) of the casting obtained by demolding was visually observed. The results are shown in Table 1. In the table, ○: Completely fused, no dents, Δ: Partially unfused, no dents, ×: Not fused, dents present.
【００１５】[0015]
【表１】[Table 1]
【００１６】上記表１より明らかなように、鋳込み温度
Ｔｐが鋳包み材の融点Ｔｍ＋１００℃では融着が難しく
、従って凹みが見られるが、鋳込み温度Ｔｐが鋳包み材
の融点Ｔｍ＋１５０℃および２００℃になると、融着し
て凹みの発生もなくなる。しかし角度αが４５°を超え
ると、融着が難しくなり凹みが見られる。As is clear from Table 1 above, when the casting temperature Tp is the melting point Tm of the cast-in material + 100°C, it is difficult to fuse and therefore a dent is seen, but when the casting temperature Tp is the melting point Tm of the cast-in material + 150°C and 200°C. When it becomes fused, there will be no dents. However, when the angle α exceeds 45°, fusion becomes difficult and dents appear.
【００１７】また融着したものの断面を採って調べた結
果、図２に示すように、鋳包み材 （１）の外周面（１
Ａ）と鋳込み材 （６）の境界、特にエッジ部 （９）
は溶融して融着し、また他の接合面も融着が見られ、良
好な接合が得られていた。Further, as a result of taking and examining the cross section of the fused material, as shown in FIG.
The boundary between A) and the cast material (6), especially the edge part (9)
was melted and fused, and fusion was also observed on other bonded surfaces, indicating that good bonding was obtained.
【００１８】[0018]
【発明の効果】以上説明したように、本発明に係わる板
材の鋳包み方法によれば、鋳包み材と鋳込み材の外表面
の境界部分に凹みを発生することなく、鋳包み材を鋳込
み材に十分な接合強度をもって鋳包むことができる。し
かも凹みが無いので凹みを除去する仕上げ作業が省略で
きる。Effects of the Invention As explained above, according to the cast-in method for sheet materials according to the present invention, the cast-in material can be easily transferred to the cast-in material without creating a dent at the boundary between the outer surfaces of the cast-in material and the cast-in material. It can be cast with sufficient joint strength. Moreover, since there are no dents, finishing work to remove dents can be omitted.
【図１】本発明に係わる板材の鋳包み方法に適用する鋳
型および鋳包み材の説明図であって、（ａ）は鋳型の断
面説明図、（ｂ）は鋳包み材の断面拡大説明図である。FIG. 1 is an explanatory diagram of a mold and a cast-in material applied to the method of casting in a sheet material according to the present invention, in which (a) is a cross-sectional explanatory diagram of the mold, and (b) is an enlarged cross-sectional explanatory diagram of the cast-in material. It is.
【図２】本発明に係わる板材の鋳包み方法を適用して得
られた鋳物の一部拡大説明図である。FIG. 2 is a partially enlarged explanatory view of a casting obtained by applying the method of casting in plate material according to the present invention.
【図３】従来の鋳型の断面図である。FIG. 3 is a cross-sectional view of a conventional mold.
【図４】従来の鋳包み方法を適用して得られた鋳物の一
部拡大説明図である。FIG. 4 is a partially enlarged explanatory view of a casting obtained by applying a conventional cast-in method.
１：鋳包み材 １Ａ：外周面
２：製品キャビティ
３：鋳型 ４：湯口
５：押湯
６：鋳込み材 ７：外表面の境
界部分 ８：凹み
９：エッジ部1: Cast-in material 1A: Outer peripheral surface
2: Product cavity 3: Mold 4: Sprue
5: Feeder 6: Casting material 7: Boundary part of outer surface 8: Recess 9: Edge part
Claims (1)
に鋳包む方法において、金属板の外周面に、１５°〜４
５°の角度で５ｍｍ以上の長さの外広がりの傾斜を設け
るとともに、溶湯を下記鋳込み温度Ｔｐで注湯して金属
板を鋳包むことを特徴とする板材の鋳包み方法。 Ｔｐ＞Ｔｍ＋１５０℃ ただし、Ｔｍ：金属板の融点Claim 1: In a method of casting a metal plate in molten metal while leaving one wide surface, the outer peripheral surface of the metal plate has an angle of 15° to 4°.
A method for casting a sheet material, which comprises providing an outward-spreading slope with a length of 5 mm or more at an angle of 5 degrees, and casting the metal sheet by pouring molten metal at the following casting temperature Tp. Tp>Tm+150°C, where Tm: melting point of metal plate
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225291A JPH04322860A (en) | 1991-04-23 | 1991-04-23 | Method for cast-wrapping plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225291A JPH04322860A (en) | 1991-04-23 | 1991-04-23 | Method for cast-wrapping plate material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04322860A true JPH04322860A (en) | 1992-11-12 |
Family
ID=14049234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9225291A Pending JPH04322860A (en) | 1991-04-23 | 1991-04-23 | Method for cast-wrapping plate material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04322860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874231B2 (en) | 2001-04-09 | 2005-04-05 | Harmonic Drive Systems Inc. | Method of manufacturing a rigid internal gear of a wave gear device |
-
1991
- 1991-04-23 JP JP9225291A patent/JPH04322860A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6874231B2 (en) | 2001-04-09 | 2005-04-05 | Harmonic Drive Systems Inc. | Method of manufacturing a rigid internal gear of a wave gear device |
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