JP3171409B2 - Method of manufacturing copper parts with cooling holes - Google Patents
Method of manufacturing copper parts with cooling holesInfo
- Publication number
- JP3171409B2 JP3171409B2 JP25065392A JP25065392A JP3171409B2 JP 3171409 B2 JP3171409 B2 JP 3171409B2 JP 25065392 A JP25065392 A JP 25065392A JP 25065392 A JP25065392 A JP 25065392A JP 3171409 B2 JP3171409 B2 JP 3171409B2
- Authority
- JP
- Japan
- Prior art keywords
- tubular member
- copper
- cooling holes
- steel pipe
- hole
- 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 - Lifetime
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Blast Furnaces (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷却板や電極並びにる
つぼとして用いられる冷却孔付き銅製部品に於いて、そ
の冷却孔を任意の形状に、しかも容易に製作出来る製造
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 of manufacturing a copper part having a cooling hole used as a cooling plate, an electrode and a crucible, in which the cooling hole can be easily formed into an arbitrary shape.
【０００２】[0002]
【従来の技術】この種の冷却孔付き銅製部品の製造方法
としては、従来から図９に示すように、冷却孔となるべ
き溝ａを有する銅板ｂと銅板ｃとを、両銅板の接合面に
ろう材を施してろう付けすることにより行われていた。2. Description of the Related Art As a method of manufacturing a copper component having a cooling hole, as shown in FIG. This was done by applying a brazing material to the brazing material.
【０００３】[0003]
【発明が解決しようとする課題】上記従来法では、二次
元の溝しか形成することが出来ず、また得られる製品
は、ろう付けによるため接合面の全面に渡って充分な接
合を行うことが難しく、従って充分な気密性、水密性を
安定して得ることが困難であった。この様な理由から経
済的にも安定した品質のものを確実に得ることが難し
く、コスト、歩留りの面でも問題があった。In the above-mentioned conventional method, only a two-dimensional groove can be formed, and the obtained product is formed by brazing, so that sufficient bonding can be performed over the entire bonding surface. Therefore, it is difficult to stably obtain sufficient airtightness and watertightness. For these reasons, it is difficult to reliably obtain products of stable quality economically, and there are also problems in terms of cost and yield.
【０００４】本発明は、上記問題を解消し、三次元形状
の冷却孔を有する銅製部品を容易に、しかも安定的に製
造することが出来る製造方法を提供することを目的とし
ているものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem and to provide a manufacturing method capable of easily and stably manufacturing a copper part having a three-dimensional cooling hole.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明では下記の手段を採用するものである。 即
ち、複数個の銅板の中の少なくとも１個の銅板に、三次
元の溝若しくは孔内に鋼製パイプを配設し、次いで複数
個の銅板を組み合わせ熱間等方圧加圧処理法により拡散
接合して一体化させた後、上記鋼製パイプを硫酸溶液中
で除去する方法である。Means for Solving the Problems In order to achieve the above object, the present invention employs the following means. That is, a steel pipe is arranged in a three-dimensional groove or hole in at least one of the plurality of copper plates, and then the plurality of copper plates are combined and diffused by hot isostatic pressing. After joining and integrating, the steel pipe is removed in a sulfuric acid solution.
【０００６】また本発明方法では、鋼製パイプの少なく
とも一部を、図４〜図８に示すような複数個の分割部材
より成りそれを組み合わせたときに断面が中空形となる
鋼製管状部材に代える方法を採用することもある。Further, in the method of the present invention, at least a part of the steel pipe is constituted by a plurality of divided members as shown in FIGS. May be adopted.
【０００７】本発明方法に於いて、溝若しくは孔内にパ
イプあるいは管状部材を配設するのは次の様な理由によ
る。即ち、全ての銅板を熱間等方圧加圧処理法により拡
散接合する場合に、これらの接合強度を充分なものに
し、気密性、水密性を確保するためには、熱間等方圧加
圧処理の温度及び圧力を高くするのがよい。しかし乍
ら、これらの条件を高くするとき、上記溝若しくは孔内
に何もなければ、冷却孔となるべき溝若しくは孔が処理
中に変形、消失してしまう。これは、熱間等方圧加圧処
理時には、全ての銅板はキャニングされ、溝若しくは孔
内は真空とされているからである。そこでこの様な変
形、消失を防止するために、銅板よりも高温で強度を有
する鋼製のパイプあるいは管状部材を溝若しくは孔を支
えることを目的として配設するものである。In the method of the present invention, the pipe or the tubular member is disposed in the groove or the hole for the following reason. That is, when all the copper plates are diffusion-bonded by the hot isostatic pressing method, it is necessary to apply hot isostatic pressing in order to ensure sufficient bonding strength and ensure airtightness and watertightness. The temperature and pressure of the pressure treatment are preferably increased. However, when these conditions are increased, if there is nothing in the above-mentioned groove or hole, the groove or hole to be a cooling hole will be deformed or disappear during processing. This is because at the time of hot isostatic pressing, all the copper plates are canned and the inside of the grooves or holes is evacuated. Therefore, in order to prevent such deformation and disappearance, a steel pipe or a tubular member having strength at a higher temperature than the copper plate is provided for the purpose of supporting the groove or the hole.
【０００８】また、溝若しくは孔内に配設する部材をパ
イプあるいは管状部材といずれも中空形としたのは、硫
酸により除去するときに、もしこれを角状あるいは丸状
などの中実材とした場合には、その端面からのみの溶解
により除去されることとなり、非常に長時間を必要とす
るものに対して、中空形にすると、その部材の内面全面
から溶解が進行し、部材の肉厚が薄くなっていくという
方向での除去となり、短時間での除去が可能となるから
である。[0008] Further, the member disposed in the groove or the hole is made to be hollow, such as a pipe or a tubular member, when it is removed with a sulfuric acid, if the member is made of a square or round solid material. In the case where the material is removed, it will be removed only from the end face by dissolving it, and if it takes a very long time, if it is made hollow, dissolution proceeds from the entire inner surface of the member, and the meat of the member This is because the removal is performed in a direction in which the thickness is reduced, and the removal can be performed in a short time.
【０００９】鋼製のパイプあるいは管状部材の除去に硫
酸を用いたのは、塩酸、硝酸などの他の溶液では、パイ
プあるいは管状部材と共に銅板も溶解するのに対し、硫
酸を用いた場合には、パイプあるいは管状部材のみが溶
解し、銅板は溶解しないという結果が得られたからであ
る。なお、パイプあるいは管状部材を除去するのは、得
られる製品の冷却効率を高めるためである。つまり、鋼
製部材が残存していると、銅製部品と冷却媒体との間に
熱伝導度の良くない層が存在することになり、冷却効率
が低下することになるからである。The reason why sulfuric acid is used to remove a steel pipe or tubular member is that other solutions such as hydrochloric acid and nitric acid dissolve the copper plate together with the pipe or tubular member, whereas sulfuric acid is used when sulfuric acid is used. This is because only the pipe or the tubular member was melted, and the copper plate was not melted. The reason for removing the pipe or the tubular member is to increase the cooling efficiency of the obtained product. That is, if the steel member remains, a layer having poor thermal conductivity exists between the copper component and the cooling medium, and the cooling efficiency is reduced.
【００１０】[0010]
【実施例】以下本発明の実施例について述べる。図１〜
図２に示すように、２５０mmφ×３５mmｔの銅板１，
２，３に、それぞれ円形の溝ア，イ，ウ，エを形成し、
さらに溝イとウがつながるように、孔オと横溝カを形成
した。そして溝ア及びイには、鋼製管状部材４を溝ウ及
びエには鋼製管状部材５を配設すると共に、孔オと横溝
カには図３に示すような鋼製パイプ６と鋼製管状部材７
を配設した。そして、銅板１，２，３を重ね合わせ、そ
の接合面を外周部より電子ビーム溶接によりシール溶接
したのち、熱間等方圧加圧装置により拡散接合させた。
このときの熱間等方圧加圧処理条件は、温度７００℃，
圧力３００kgf/cm2 、時間２時間である。Embodiments of the present invention will be described below. Figure 1
As shown in FIG. 2, a copper plate 1, 250 mmφ × 35 mmt,
Form circular grooves A, I, U, D on 2 and 3, respectively.
Further, a hole e and a lateral groove f were formed so that the grooves a and c were connected. A steel tubular member 4 is provided in each of the grooves A and A, and a steel tubular member 5 is provided in each of the grooves U and D. A steel pipe 6 as shown in FIG. Tubular member 7
Was arranged. Then, the copper plates 1, 2 and 3 were overlapped, and their joint surfaces were seal-welded from the outer peripheral portion by electron beam welding, and then diffusion-bonded by a hot isostatic pressing device.
The hot isostatic pressing condition at this time is as follows:
The pressure is 300 kgf / cm 2 and the time is 2 hours.
【００１１】その後、硫酸溶液が溝内に浸入できるよう
に孔キ，クを設け、液温７０℃の１０％硫酸溶液中に浸
漬し、鋼製管状部材及び鋼製パイプを除去した。このと
き、部材パイプの溶解速度を速めるために、定量ポンプ
を用い、硫酸溶液を部材，パイプ内に供給した。その結
果、該部材，パイプは約４８時間で除去することができ
た。部材，パイプの除去後、断面を観察した結果、部
材，パイプのみが完全に除去され、銅板は溶解していな
いことを確認した。また、銅板どうしの接合について
は、充分な気密性，水密性が得られていることを確認し
た。Thereafter, holes and holes were provided so that the sulfuric acid solution could enter the groove, and the steel tubular member and the steel pipe were removed by immersing in a 10% sulfuric acid solution at a liquid temperature of 70 ° C. At this time, in order to increase the dissolution rate of the member pipe, a sulfuric acid solution was supplied into the member and the pipe using a metering pump. As a result, the member and the pipe could be removed in about 48 hours. As a result of observing the cross section after removing the member and the pipe, it was confirmed that only the member and the pipe were completely removed and the copper plate was not melted. Further, it was confirmed that sufficient air-tightness and water-tightness were obtained for joining copper plates.
【００１２】[0012]
【発明の効果】以上述べて来た如く、本発明方法によれ
ば、冷却孔となるべき中空部の形成は三次元の鋼製パイ
プあるいは複数個の分割部材より成る鋼製管状部材の形
状により決定されるので、その形状，大きさは自由に選
定することができ、この中空部にパイプあるいは管状部
材を配設して熱間等方圧加圧処理で拡散接合するので溝
あるいは孔が変形したり消失したりすることなく、その
後鋼製のパイプあるいは管状部材のみを硫酸にて溶解除
去すれば完全な三次元の冷却孔が開いた銅製部品を得る
ことができる。また、銅板どうしの接合も充分で確実に
気密性、水密性を有する冷却孔を得ることができる。As described above, according to the method of the present invention, the formation of the hollow portion to be the cooling hole is performed by the shape of the three-dimensional steel pipe or the steel tubular member composed of a plurality of divided members. Since it is determined, its shape and size can be freely selected. A pipe or tubular member is arranged in this hollow part and diffusion bonding is performed by hot isostatic pressing, so that the groove or hole is deformed. After that, if only the steel pipe or tubular member is dissolved and removed with sulfuric acid without losing or disappearing, a copper component having a complete three-dimensional cooling hole can be obtained. Further, the joining of the copper plates is sufficient, and a cooling hole having airtightness and watertightness can be reliably obtained.
【００１３】なお、本発明方法は熱間等方圧加圧処理に
より拡散接合する方法を採用するもので、処理時に於け
る圧力は全方位からかかるため、複雑な形状に対して
も、変形させることなく接合ができ、従って、平坦な銅
製部品のみでなく、わん曲した銅製部品など、複雑な形
状のものも製造できるという利点がある。The method of the present invention employs a method of diffusion bonding by hot isostatic pressing, in which pressure is applied from all directions during processing, so that even a complicated shape can be deformed. Therefore, there is an advantage that not only flat copper parts but also complicated shapes such as curved copper parts can be manufactured.
【図１】本発明の実施例を示す平面図である。FIG. 1 is a plan view showing an embodiment of the present invention.
【図２】本発明の実施例を示す分解図である。FIG. 2 is an exploded view showing an embodiment of the present invention.
【図３】本発明の実施例で用いる鋼製パイプと鋼製管状
部材の正面図である。FIG. 3 is a front view of a steel pipe and a steel tubular member used in the embodiment of the present invention.
【図４】本発明で用いる鋼製管状部材の断面の一例を示
す説明図である。FIG. 4 is an explanatory view showing an example of a cross section of a steel tubular member used in the present invention.
【図５】本発明で用いる鋼製管状部材の断面の一例を示
す説明図である。FIG. 5 is an explanatory view showing an example of a cross section of a steel tubular member used in the present invention.
【図６】本発明で用いる鋼製管状部材の断面の一例を示
す説明図である。FIG. 6 is an explanatory view showing an example of a cross section of a steel tubular member used in the present invention.
【図７】本発明で用いる鋼製管状部材の断面の一例を示
す説明図である。FIG. 7 is an explanatory view showing an example of a cross section of a steel tubular member used in the present invention.
【図８】本発明で用いる鋼製管状部材の断面の一例を示
す説明図である。FIG. 8 is an explanatory view showing an example of a cross section of a steel tubular member used in the present invention.
【図９】従来方法の概略を示す説明図である。FIG. 9 is an explanatory view schematically showing a conventional method.
１ 銅板 ２ 銅板 ３ 銅板 ４ 鋼製管状部材 ５ 鋼製管状部材 ６ 鋼製パイプ ７ 鋼製管状部材 DESCRIPTION OF SYMBOLS 1 Copper plate 2 Copper plate 3 Copper plate 4 Steel tubular member 5 Steel tubular member 6 Steel pipe 7 Steel tubular member
フロントページの続き (56)参考文献 特開 昭59−78754（ＪＰ，Ａ) 特開 昭62−133006（ＪＰ，Ａ) 特開 昭61−88942（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 20/00 F28F 3/12 Continuation of the front page (56) References JP-A-59-78754 (JP, A) JP-A-62-133006 (JP, A) JP-A-61-88942 (JP, A) (58) Fields investigated (Int) .Cl. 7 , DB name) B23K 20/00 F28F 3/12
Claims (2)
板に、三次元の溝若しくは孔を設け、該溝若しくは孔内
に鋼製パイプを配設し、次いで複数個の銅板を組み合わ
せ熱間等方圧加圧処理法により拡散接合して一体化させ
た後、上記鋼製パイプを硫酸溶液中で除去することで冷
却孔を形成することを特徴とする冷却孔付き銅製部品の
製造方法。1. A three-dimensional groove or hole is provided in at least one copper plate among a plurality of copper plates, a steel pipe is provided in the groove or hole, and then a plurality of copper plates are combined. A method for manufacturing a copper part with cooling holes, comprising forming cooling holes by removing the steel pipe in a sulfuric acid solution after diffusion bonding and integration by an isostatic pressure treatment method. .
の一部が複数個の分割部材より成りそれを組み合わせた
ときに断面が中空形となる鋼製管状部材とすることを特
徴とする請求項１に記載の冷却孔付き銅製部品の製造方
法。2. A steel tubular member, wherein at least a part thereof is formed of a plurality of divided members and has a hollow cross section when they are combined, instead of the steel pipe. 2. The method for producing a copper part with cooling holes according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25065392A JP3171409B2 (en) | 1992-08-25 | 1992-08-25 | Method of manufacturing copper parts with cooling holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25065392A JP3171409B2 (en) | 1992-08-25 | 1992-08-25 | Method of manufacturing copper parts with cooling holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06234080A JPH06234080A (en) | 1994-08-23 |
| JP3171409B2 true JP3171409B2 (en) | 2001-05-28 |
Family
ID=17211059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25065392A Expired - Lifetime JP3171409B2 (en) | 1992-08-25 | 1992-08-25 | Method of manufacturing copper parts with cooling holes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3171409B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150283647A1 (en) * | 2012-10-18 | 2015-10-08 | Asahi Co., Ltd. | Method of manufacturing composite metal material, method of manufacturing mold, method of manufacturing metal product, and composite metal material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5183935B2 (en) * | 2007-02-26 | 2013-04-17 | Ｃｋｄ株式会社 | Manufacturing method of flow path block |
-
1992
- 1992-08-25 JP JP25065392A patent/JP3171409B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150283647A1 (en) * | 2012-10-18 | 2015-10-08 | Asahi Co., Ltd. | Method of manufacturing composite metal material, method of manufacturing mold, method of manufacturing metal product, and composite metal material |
| US9604307B2 (en) * | 2012-10-18 | 2017-03-28 | Asahi Co., Ltd. | Method of manufacturing composite metal material, method of manufacturing mold, method of manufacturing metal product, and composite metal material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06234080A (en) | 1994-08-23 |
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