JPS6330148A - Method for casting metallic pipe and casting mold used for said casting - Google Patents
Method for casting metallic pipe and casting mold used for said castingInfo
- Publication number
- JPS6330148A JPS6330148A JP17333386A JP17333386A JPS6330148A JP S6330148 A JPS6330148 A JP S6330148A JP 17333386 A JP17333386 A JP 17333386A JP 17333386 A JP17333386 A JP 17333386A JP S6330148 A JPS6330148 A JP S6330148A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- circumferential direction
- casting
- hole part
- 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
- 238000005266 casting Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 7
- 238000001816 cooling Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 abstract description 5
- 239000011295 pitch Substances 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011819 refractory material Substances 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
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、金属管の鋳造方法及びその鋳造に用いる鋳型
Ｉこ関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for casting metal tubes and a mold I used for the casting.
従来の技術
近年、管の内外面に、管の軸方向に延びる直線吠あるい
は、螺線状の凸部を有する管が、熱交換器用あるいは化
学反応管用として需要が高まりつつある。BACKGROUND OF THE INVENTION In recent years, there has been an increasing demand for tubes having linear protrusions or spiral protrusions extending in the axial direction of the tubes on their inner and outer surfaces for use in heat exchangers or chemical reaction tubes.
発明が解決しようとする問題点
しかし、従来は上記の管の製造にあたって、管の局部に
フィン状の板を溶接して取り付けているために、生産性
が著しく乏しいものであった。Problems to be Solved by the Invention However, in the past, when manufacturing the above-mentioned pipes, fin-shaped plates were welded and attached to local parts of the pipes, resulting in extremely poor productivity.
本発明は上記問題点を解決するもので、内外面に凸部を
有する管を経済的に、かつ効率的に生産する金属管の鋳
造方法及びその鋳造に用いる鋳型を提供することを目的
とする。The present invention solves the above-mentioned problems, and aims to provide a metal tube casting method that economically and efficiently produces tubes having convex portions on the inner and outer surfaces, and a mold used for the casting. .
問題点を解決するための手段
上記問題点を解決するため、本発明の鋳造方法は、中央
部に軸方向の冷却用の孔部が貫通形成ジれた環状の冷却
ジャケットの冷却力を、孔部の周方向の任意の位置で違
丸、孔部内で形成される凝固殻に、前記任意の位置での
局部的な冷却によって偏肉を生じさせて、任官形状の管
断面を成形する構成としたものである。そして、本発明
の鋳型は、水冷ジャケットの中央部に形成された冷却用
の孔部周囲に、冷却水路を、前記孔部の周方向で複数室
に区画し、かつ前記孔部の軸方向で螺線状に形成して設
けた構成としたものである。Means for Solving the Problems In order to solve the above problems, the casting method of the present invention utilizes the cooling power of an annular cooling jacket with an axial cooling hole formed through the center part. A configuration in which an irregular circle is formed at an arbitrary position in the circumferential direction of the part, and uneven thickness is caused in the solidified shell formed within the hole by local cooling at the arbitrary position, thereby forming a pipe cross section of a commissioned shape. This is what I did. In the mold of the present invention, a cooling water channel is divided into a plurality of chambers around a cooling hole formed in the center of the water cooling jacket in the circumferential direction of the hole, and the cooling water channel is divided into a plurality of chambers in the circumferential direction of the hole. It has a configuration in which it is formed in a spiral shape.
作用
上記の本発明の鋳造方法は、水冷ジャケットの冷却用の
孔部の周方向での冷却むらにより、鋳造管に偏肉が生ず
ることに着目したものであり、前記の冷却むらを意図的
につくり出し、孔部の周方向の任意の位置に局部的な冷
却力を作用させることにより、局部的に肉厚の大きい金
属管を鋳造するものである。Effect The above-described casting method of the present invention focuses on the fact that uneven thickness occurs in the cast tube due to uneven cooling in the circumferential direction of the cooling holes of the water cooling jacket. By applying a local cooling force to any position in the circumferential direction of the hole, a metal tube with a locally large wall thickness is cast.
また、本発明の鋳造用鋳型によれば、冷却水路の隔室ご
とに冷却水全８調整して、螺線状に冷却力の差を作り、
この螺線の送りに一致するように、鋳造管もしくは鋳型
を回転させながら鋳造管を引き上げ、凝固殻を螺線状に
偏肉させることにより、内面に螺線状の凸部を有する管
を鋳造する。In addition, according to the casting mold of the present invention, all eight cooling waters are adjusted for each compartment of the cooling water channel to create a spiral cooling power difference.
In accordance with this spiral feed, the casting tube or mold is rotated and pulled up, and the thickness of the solidified shell is uneven in a spiral shape, thereby casting a tube with a spiral convex portion on the inner surface. do.
実施例
以下、本発明の一実施例を図面に基づいて説明する。第
１図において、水冷ジャケット（１）の中央には、冷却
用の孔部（２）が形成されている。水冷ジャケット（１
）の内部には、孔部（２）の局部に沿って、かつ孔部（
２）の軸方向で螺線状に形成された複数の隔壁（３）が
、孔部（２）の周方向で等間隔に設けらね、でおり、そ
れぞれの隣接し合う隔ｖ（３）によって、複数の螺線状
の冷却水路（４）が形成されている。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, a cooling hole (2) is formed in the center of a water cooling jacket (1). Water cooling jacket (1
) along the local part of the hole (2) and along the inside of the hole (2).
A plurality of partition walls (3) formed in a spiral shape in the axial direction of 2) are provided at equal intervals in the circumferential direction of the hole (2), and each adjacent partition wall v (3) , a plurality of spiral cooling channels (4) are formed.
上記の構成によれば、冷却水路（４）の水量を各水路ご
とに調整し、孔部（２）の周囲に螺線状に冷却力の差を
作る。この状態で、孔部（２）内の溶湯は孔部（２）の
周方向で、各水路ごとに局部的に強く冷却され、形成さ
れる凝固殻の厚みに差が生じる。According to the above configuration, the amount of water in the cooling waterways (4) is adjusted for each waterway to create a spiral cooling power difference around the hole (2). In this state, the molten metal in the hole (2) is locally strongly cooled in each channel in the circumferential direction of the hole (2), and the thickness of the solidified shell formed varies.
そして、鋳造される管を、冷却水路（４）の螺線のピッ
チに一致する様に、管側もしくは水冷ジャケット（１）
側を回転させながら引き上げる。この時凝固殻は、冷却
水路（４）の螺線に沿って厚みに差が生じ、管内面に螺
線状の凸部を有する管が鋳造さｔｌる。Then, place the tube to be cast on the tube side or on the water cooling jacket (1) so that it matches the spiral pitch of the cooling water channel (4).
Rotate the sides and pull up. At this time, the thickness of the solidified shell varies along the spiral of the cooling channel (4), and a tube having a spiral convex portion on the inner surface of the tube is cast.
第２図は、本発明の他の実施例を示すものであり、水冷
ジャケット（５）の中央には、冷却用の孔部（６）が形
成されている。水冷ジャケット（５）の内部は、孔部（
６）の周方向に層間隔で配性された垂直隔壁（７）によ
り、複数室に区画さｎｌそれぞれの隣接し合う隔壁（７
）によって複数の冷却水路（８）が形成すれている。各
冷却水路（８）には、冷却水の供給管（９）および排出
管００が連結されている。FIG. 2 shows another embodiment of the present invention, in which a cooling hole (6) is formed in the center of the water cooling jacket (5). The inside of the water cooling jacket (5) has holes (
6) is partitioned into a plurality of chambers by vertical partition walls (7) arranged at layer intervals in the circumferential direction.
), a plurality of cooling water channels (8) are formed. A cooling water supply pipe (9) and a discharge pipe 00 are connected to each cooling water channel (8).
上記の構成によれば、冷却水路（８）の水量を各水路ご
とに調整し、周方向に冷却力の差を作る。この状態で、
孔部（６１内の溶湯は、孔部（６）の周方向で、各水路
ごとに局部的に強く冷却され、形成される凝固殻の７み
に差が生じる。そして、鋳造される管を引き上げ、各冷
却水路（８）に沿って、凝固殻の厚みの差を形成し、管
内面に直線状の凸部を有する管を鋳造する。According to the above configuration, the amount of water in the cooling waterways (8) is adjusted for each waterway to create a difference in cooling power in the circumferential direction. In this state,
The molten metal in the hole (61) is locally strongly cooled in each channel in the circumferential direction of the hole (6), resulting in a difference in the solidified shell 7 formed. The pipe is pulled up, forming a difference in the thickness of the solidified shell along each cooling channel (8), and casting a pipe having a linear convex portion on the inner surface of the pipe.
第３図に、水量分布とその分布で形成される管の断面形
状を示す。第３図より明らかなように各冷却水路の水量
を調整することにより図示のような断面形状の管（ａ）
（ｂ） （ｃ）をｇｔｉ造出来る。FIG. 3 shows the water volume distribution and the cross-sectional shape of the pipe formed by that distribution. As is clear from Fig. 3, by adjusting the amount of water in each cooling channel, the pipe (a) with the cross-sectional shape shown in the figure can be obtained.
(b) (c) can be made by gti.
第４図〜第５図は、さらに本発明の池の実施例を示すも
のであり、水冷ジャケットαＤの中央に、冷却用の孔部
（２）を形成しである。孔部■の周囲には、冷却水路頭
が設けられており、冷却水！！３ Ｑ３は、環状の仕切
壁０４によって、内路（１３ａ ）と外路（１３ｂ）に
仕切られている。外路（１３ａ ）には、周方向の複数
箇所に、冷却水を供給する供給管ｏ９が設けら１２てお
り、供給管（至）は、水冷ジャケットα刀の底部近傍で
開口している。FIGS. 4 and 5 further show an embodiment of the pond of the present invention, in which a cooling hole (2) is formed in the center of the water cooling jacket αD. A cooling water head is provided around the hole ■, allowing cooling water! ! 3 Q3 is partitioned into an inner path (13a) and an outer path (13b) by an annular partition wall 04. The outer path (13a) is provided with supply pipes o9 for supplying cooling water at a plurality of locations in the circumferential direction, and the supply pipes (to) open near the bottom of the water cooling jacket α.
内路（１３ｂ）の上部には、冷却水の排出管ａｅが連結
されている。A cooling water discharge pipe ae is connected to the upper part of the inner path (13b).
上記の構成において、冷却水を、供給管０９によって水
冷ジャケットａＤの底部まで導き、底部にて冷却水路（
至）内に放出する。この時供給管（至）の開口近辺では
、冷却水の流速が大きく、その為に、局部的に冷却力が
強くなる。そして、孔部ｏ２内の溶湯は、供給管（イ）
の開口近傍で局部的に強く冷却されて、形成される凝固
殻の４みに差が生じ、第６図に示すような断面形状の管
（ｄ）が鋳造される。In the above configuration, the cooling water is guided to the bottom of the water cooling jacket aD through the supply pipe 09, and the cooling water channel (
to). At this time, the flow velocity of the cooling water is high near the opening of the supply pipe (to), and therefore the cooling power is locally strong. Then, the molten metal in the hole o2 flows through the supply pipe (a)
It is locally strongly cooled near the opening of the tube, and the solidified shells formed are different in size, and a tube (d) having a cross-sectional shape as shown in FIG. 6 is cast.
第７図〜第８図は、さらに本発明の他の実施例を示すも
のであり、水冷ジャケットαりの中央には、孔部（至）
が形成されており、孔部０棒の周囲には、冷却水路αＱ
が設けられている。孔部（至）には、円筒状のダイス（
ホ）を挿入装着しである。ダイス（イ）は、たとえば黒
鉛、セラミック材層の熱伝導率の良いもので形成されて
いる。FIGS. 7 and 8 show still another embodiment of the present invention, in which a hole is provided in the center of the water cooling jacket.
is formed, and a cooling water channel αQ is formed around the hole 0 rod.
is provided. A cylindrical die (
E) is inserted and installed. The die (a) is made of, for example, graphite or a ceramic material layer with good thermal conductivity.
そしてダイス（イ）の内面には、周方向の任意の位置に
おいて、ダイス（イ）の長さ方向のＪ（２０ａ）が形成
しである。On the inner surface of the die (A), a J (20a) extending in the length direction of the die (A) is formed at an arbitrary position in the circumferential direction.
冷却水路０９には、冷却水の供給管２１および排出管ω
が連結されており、水冷ジャケットα力の周囲は、耐火
物（社）で覆われている。The cooling water channel 09 includes a cooling water supply pipe 21 and a discharge pipe ω.
are connected, and the area around the water cooling jacket α is covered with refractory material.
上記の構成において、鋳型を溶湯に浸漬して管を引き抜
きながら、ダイス（１）の外周を水冷ジャケットαη内
の冷却水によって均一に冷却する。しかしダイスωには
、溝（２０ａ ）が形成されているため、第９図に示す
ように外周に軸心方向の突部（ｅ）を有した管（ｆ）を
鋳造できる。このとき、ダイス（１）の内面に伝達され
る冷却力は、ダイスの肉厚の差によって周方向において
差が生じる。このため、ダイス（イ）内の溶湯は、ダイ
ス（１）が薄肉とされた溝部（２０ａ ）で局部的に強
く冷却されるため、形成享れる管の内面は正しく円筒状
となる。また第１図〜第６図で説明したものと第７図〜
第８図で説明したものとを組み合せることにより、管の
内外面の任意の位置に凸部を有する管を鋳造することも
可能である。In the above configuration, while the mold is immersed in the molten metal and the tube is pulled out, the outer periphery of the die (1) is uniformly cooled by the cooling water in the water cooling jacket αη. However, since the groove (20a) is formed in the die ω, it is possible to cast a tube (f) having a protrusion (e) in the axial direction on the outer periphery as shown in FIG. At this time, the cooling force transmitted to the inner surface of the die (1) varies in the circumferential direction due to the difference in wall thickness of the die. For this reason, the molten metal in the die (A) is locally strongly cooled in the thin-walled groove (20a) of the die (1), so that the inner surface of the formed tube becomes properly cylindrical. Also, what was explained in Figures 1 to 6 and Figures 7 to 6
By combining the methods described with reference to FIG. 8, it is also possible to cast a tube having convex portions at arbitrary positions on the inner and outer surfaces of the tube.
発明の効果
以上述べたごとく本発明によれば、弓道の周方向の任意
の位置を局部的に冷却することにょ−て、断面任意形状
の管を鋳造することが出来る。Effects of the Invention As described above, according to the present invention, a tube having an arbitrary cross-sectional shape can be cast by locally cooling an arbitrary position in the circumferential direction of the archery.
第１図は、本発明の一実施例を示す全体斜視図、第２図
は、本発明の他の実施例を示す平断面図、第３図は、第
２図の鋳型による水量分布と鋳造管の断面形状を示す図
、第４図は、本発明のさらに池の実施例を示す縦断面図
、第５図１よ、第４図のＡ−Ａ矢視平断面図、第６図は
第５図の鋳型で鋳造される管の断面形状を示す図、第７
図は、本発明のさらに他の実施例を示す縦断面図、第８
図は第７図のＡ−Ａ矢視平断面図、第９図は第７図の鋳
型で鋳造される管断面図である。FIG. 1 is an overall perspective view showing one embodiment of the present invention, FIG. 2 is a plan sectional view showing another embodiment of the present invention, and FIG. 3 is a water flow distribution and casting using the mold shown in FIG. 4 is a longitudinal sectional view showing a further embodiment of the pond of the present invention, FIG. 5 is a sectional view taken along the line A-A in FIG. Figure 7 shows the cross-sectional shape of the pipe cast with the mold shown in Figure 5.
FIG. 8 is a vertical sectional view showing still another embodiment of the present invention.
The figure is a sectional view taken along the line A--A in FIG. 7, and FIG. 9 is a sectional view of a tube cast using the mold shown in FIG.
Claims (1)
状の冷却ジャケットの冷却力を、孔部の周方向の任意の
位置で違え、孔部内で形成される凝固殻に、前記任意の
位置での局部的な冷却によって偏肉を生じさせて、任意
形状の管断面を成形することを特徴とする金属管の鋳造
方法。 ２、水冷ジャケットの中央部に形成された冷却用の孔部
周囲に、冷却水路を、前記孔部の周方向で複数室に区画
し、かつ前記孔部の軸方向で螺線状に形成して設けたこ
とを特徴とする金属管の鋳造用鋳型。[Claims] 1. The cooling power of the annular cooling jacket, which has an axial cooling hole formed in the center thereof, can be varied at any position in the circumferential direction of the hole. A method for casting a metal tube, characterized in that a tube cross section of an arbitrary shape is formed by locally cooling the solidified shell at the arbitrary position to produce an uneven thickness. 2. A cooling water channel is divided into a plurality of chambers in the circumferential direction of the hole, and is formed in a spiral shape in the axial direction of the hole, around the cooling hole formed in the center of the water cooling jacket. A mold for casting a metal tube, characterized in that it is provided with a metal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17333386A JPS6330148A (en) | 1986-07-22 | 1986-07-22 | Method for casting metallic pipe and casting mold used for said casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17333386A JPS6330148A (en) | 1986-07-22 | 1986-07-22 | Method for casting metallic pipe and casting mold used for said casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330148A true JPS6330148A (en) | 1988-02-08 |
| JPH0260422B2 JPH0260422B2 (en) | 1990-12-17 |
Family
ID=15958484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17333386A Granted JPS6330148A (en) | 1986-07-22 | 1986-07-22 | Method for casting metallic pipe and casting mold used for said casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422541A (en) * | 1990-05-18 | 1992-01-27 | Kubota Corp | Drawing up continuous casting method and cooled mold thereof |
| JPH0428456A (en) * | 1990-05-18 | 1992-01-31 | Kubota Corp | Cooling mold for drawing-up continuous casting |
| US9395857B2 (en) | 2007-12-24 | 2016-07-19 | Tpk Holding Co., Ltd. | Capacitive touch panel |
-
1986
- 1986-07-22 JP JP17333386A patent/JPS6330148A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422541A (en) * | 1990-05-18 | 1992-01-27 | Kubota Corp | Drawing up continuous casting method and cooled mold thereof |
| JPH0428456A (en) * | 1990-05-18 | 1992-01-31 | Kubota Corp | Cooling mold for drawing-up continuous casting |
| US9395857B2 (en) | 2007-12-24 | 2016-07-19 | Tpk Holding Co., Ltd. | Capacitive touch panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0260422B2 (en) | 1990-12-17 |
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