JPH0422542A - Cooled mold for producing tube with fins in inner face - Google Patents
Cooled mold for producing tube with fins in inner faceInfo
- Publication number
- JPH0422542A JPH0422542A JP12986590A JP12986590A JPH0422542A JP H0422542 A JPH0422542 A JP H0422542A JP 12986590 A JP12986590 A JP 12986590A JP 12986590 A JP12986590 A JP 12986590A JP H0422542 A JPH0422542 A JP H0422542A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- mold
- cooling water
- cooling
- solidified 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000000498 cooling water Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 16
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 238000011161 development Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 239000003779 heat-resistant material Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 12
- 230000008023 solidification Effects 0.000 description 12
- 238000005266 casting Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- 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、内面にフィンを具えた管を鋳造するための冷
却鋳型に関するものであって、該冷却鋳型は上下に貫通
した型孔を有し、該鋳型の下部を溶湯中に浸けて、型孔
の下部開口から溶湯を侵入させ、該溶湯を型孔周囲から
冷却し凝固させつつ連続的に引上げて、内面フィン付き
管を製造するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cooling mold for casting a tube having fins on its inner surface, and the cooling mold has mold holes penetrating vertically. The lower part of the mold is immersed in the molten metal, the molten metal enters from the lower opening of the mold hole, and the molten metal is continuously pulled up from around the mold hole while being cooled and solidified to produce a tube with internal fins. It is.
（従来の技術）
クラッキングチューブ等、化学工業に用いられる反応用
管に於て、管内面にフィン有する管の製造は極めて困難
である。近時は管が小径化する傾向にある為、内面フィ
ン付き管の製造は益々困難になっている。(Prior Art) Among reaction tubes used in the chemical industry, such as cracking tubes, it is extremely difficult to manufacture tubes that have fins on the inner surface of the tube. In recent years, there has been a tendency for tubes to become smaller in diameter, making it increasingly difficult to manufacture tubes with internal fins.
（発明が解決しようとする課題）
本発明は内面にフィンを具えた管を引上げ連続鋳造によ
って能率的に製造するための冷却鋳型を明らかにするも
のである。(Problems to be Solved by the Invention) The present invention discloses a cooling mold for efficiently producing a tube having fins on the inner surface by continuous drawing casting.
（課題を解決する手段）
本発明の冷却鋳型は、筒状モールド（４）を冷却ジャケ
ット（５）にて包囲し、該モールド内面に熱伝導性が高
く耐熱性に優れた材料で形成された筒状スリーブ（２）
を装着し、該スリーブの肉厚内に軸方向に沿って複数の
冷却水通路（１）を設けている。(Means for Solving the Problems) The cooling mold of the present invention surrounds a cylindrical mold (4) with a cooling jacket (5), and the inner surface of the mold is made of a material with high thermal conductivity and excellent heat resistance. Cylindrical sleeve (2)
A plurality of cooling water passages (1) are provided along the axial direction within the wall thickness of the sleeve.
（作用及び効果）
スリーブ（２）の上部まで湯面が達する深さに上記冷却
鋳型を溶湯（７）中に浸け、冷却水通路（１）に冷却水
を流す。(Operations and Effects) The cooling mold is immersed in the molten metal (7) to a depth where the molten metal level reaches the top of the sleeve (2), and cooling water is allowed to flow through the cooling water passage (1).
スリーブ（２）の冷却水通路（１）の近傍は、該通路か
ら離れている部分に比べて冷却効率は高い。The cooling efficiency of the sleeve (2) in the vicinity of the cooling water passage (1) is higher than that of the part away from the passage.
又、冷却通路（１）はスリーブ（２）の軸方向に延びて
いるため、スリーブ（２）の内周には周方向に冷却効率
の高い部分と低い部分とが交互に存在する。Furthermore, since the cooling passage (1) extends in the axial direction of the sleeve (2), the inner periphery of the sleeve (2) alternately has portions with high cooling efficiency and portions with low cooling efficiency in the circumferential direction.
従って、スリーブ（２）内面に沿って凝固する溶湯（７
）の凝固層は、冷却効率の高い部分では凝固速度が速く
、凝固層は厚くなる。Therefore, the molten metal (7) solidifies along the inner surface of the sleeve (2).
), the solidification rate is fast and the solidification layer is thick in areas where cooling efficiency is high.
他方、冷却効率の低い部分では凝固速度が遅く、凝固層
は薄くなる。On the other hand, in areas with low cooling efficiency, the solidification rate is slow and the solidified layer becomes thin.
凝固速度が速く、凝固層が厚く形成された部分が管（８
）の内向きフィン（８１）となる。The part where the solidification rate is fast and the solidified layer is thick is the tube (8
) becomes an inward fin (81).
凝固層を連続的に引上げることにより、内向きフィン付
きの管（８）を簡単に連続鋳造できる。By continuously pulling up the solidified layer, the inwardly finned tube (8) can be easily continuously cast.
スリーブ（２）内面は従前と同様な平滑な円弧面である
から、溶湯凝固層の引上げ抵抗の増加は少なく、従って
溶湯凝固層の吊り切れ、或は割れが発生することは防止
される。Since the inner surface of the sleeve (2) is the same smooth arcuate surface as before, there is little increase in the pulling resistance of the molten metal solidification layer, and therefore, the occurrence of hanging breaks or cracks in the molten metal solidification layer is prevented.
（実施例）
第１図は本発明の冷却鋳型を示しており、該冷却鋳型は
、銅製の筒状モールド（４）を冷却ジャケット（５）で
包囲し、該ジャケットの外周を耐火物層（６）で保護し
ている。(Example) Fig. 1 shows a cooling mold of the present invention, in which a copper cylindrical mold (4) is surrounded by a cooling jacket (5), and the outer periphery of the jacket is surrounded by a refractory layer ( 6).
冷却ジャケット（５）内部には冷却水か充満する氷室（
５１）が形成されている。Inside the cooling jacket (5) there is an ice chamber filled with cooling water (
51) is formed.
モールド（４）内に、銅、黒鉛、窒化ホウ素の如く、熱
伝導性に優れ、耐熱性の良好な材料で形成した筒状スリ
ーブ（２）が嵌合され、該スリーブの内面が型孔となっ
ている。A cylindrical sleeve (2) made of a material with excellent thermal conductivity and good heat resistance, such as copper, graphite, or boron nitride, is fitted into the mold (4), and the inner surface of the sleeve is in contact with the mold hole. It has become.
スリーブ（２）の肉厚内に軸方向に沿って複数の冷却水
通路（１）を等間隔に設ける。A plurality of cooling water passages (1) are provided at equal intervals along the axial direction within the wall thickness of the sleeve (2).
冷却水通路（１）はスリーブ（２）の上端面と下端外周
に開口し、該下端開口（１２）に戻しバイブ（１３）を
接続し、該戻しバイブ（１３）は耐火物層（６）を貫通
して接層の上面から外方へ突出している。The cooling water passage (1) opens on the upper end surface and the outer periphery of the lower end of the sleeve (2), and a return vibe (13) is connected to the lower end opening (12), and the return vibe (13) is connected to the refractory layer (6). It penetrates through and protrudes outward from the upper surface of the contact layer.
冷却水通路（１）の入口（１１）は供給バイブ（］４）
を介してヘッダー（１５）に接続され、該ヘッダーを通
じて冷却機（１６）から冷却水通路（１）に冷却水が供
給される。The inlet (11) of the cooling water passage (1) is the supply vibrator (]4)
The cooling water is connected to the header (15) through the header, and cooling water is supplied from the cooler (16) to the cooling water passage (1) through the header.
戻しバイブ（１３）の終端は、貯水槽（Ｉ７）を介して
前記冷却機（１６）に接続され、冷却水は循環使用され
る。The end of the return vibe (13) is connected to the cooler (16) via a water tank (I7), and the cooling water is used for circulation.
上記冷却鋳型は、モールド（４）にスリーブ（２）を嵌
合した後、戻しバイブ（１３）を配管し、耐火物層（６
）を鋳込み成形して完成する。In the cooling mold, after fitting the sleeve (2) to the mold (4), a return vibe (13) is installed, and the refractory layer (6
) is completed by casting.
然して、スリーブ（２）の上部まで湯面が達する深さに
上記冷却鋳型を溶湯（７）中に浸ける。The cooling mold is immersed in the molten metal (7) to a depth that the molten metal level reaches the top of the sleeve (2).
冷却水通路（１）に冷却水を流すと、スリーブ（２）の
冷却水通路（１）の近傍は、該通路から離れている部分
に比べて冷却効率は高い。When cooling water is allowed to flow through the cooling water passage (1), cooling efficiency is higher in the vicinity of the cooling water passage (1) of the sleeve (2) than in the portion away from the passage.
又、冷却通路（１）はスリーブ（２）の軸方向に延びて
いるため、スリーブ（２）の内周には周方向に冷却効率
の高い部分と低い部分とが交互に存在する。Furthermore, since the cooling passage (1) extends in the axial direction of the sleeve (2), the inner periphery of the sleeve (2) alternately has portions with high cooling efficiency and portions with low cooling efficiency in the circumferential direction.
従って、スリーブ（２）内面に沿って凝固する溶湯（７
）の凝固層は、冷却効率の高い部分では凝固速度が速く
、凝固層は厚くなる。Therefore, the molten metal (7) solidifies along the inner surface of the sleeve (2).
), the solidification rate is fast and the solidification layer is thick in areas where cooling efficiency is high.
他方、冷却効率の低い部分では凝固速度が遅く、凝固層
は薄くなる。On the other hand, in areas with low cooling efficiency, the solidification rate is slow and the solidified layer becomes thin.
凝固速度が速く、凝固層は厚く形成された部分が管（８
）の内向きフィン（８１）となる。The solidification rate is fast, and the thick solidified layer is formed in the tube (8
) becomes an inward fin (81).
凝固層を連続的に引上げることにより、内向きフィン付
きの管（８）を簡単に連続鋳造できる。By continuously pulling up the solidified layer, the inwardly finned tube (8) can be easily continuously cast.
スリーブ（２）内面は従前と同様な平滑な円弧面である
から、溶湯凝固層の引上げ抵抗の増加は少なく、溶湯凝
固層の吊り切れ、或は割れが発生することは防止される
。Since the inner surface of the sleeve (2) is the same smooth arcuate surface as before, there is little increase in the pulling resistance of the molten metal solidification layer, and the occurrence of hanging breaks or cracks in the molten metal solidification layer is prevented.
スリーブ（２）の冷却水通路（１）に供給する冷却水の
温度を調整することによって、鋳造する管（８）のフィ
ン（８１）の高さを調整できる。By adjusting the temperature of the cooling water supplied to the cooling water passage (1) of the sleeve (2), the height of the fins (81) of the pipe (8) to be cast can be adjusted.
本発明は上記実施例の構成に限定されることはなく、特
許請求の範囲に記載の範囲で種々の変形が可能である。The present invention is not limited to the configuration of the above embodiments, and various modifications can be made within the scope of the claims.
第１図は冷却鋳型の断面図、第２図は第１図■−■線に
沿う断面図、第３図はフィン付き管の斜面図である。
（１）・・・冷却水通路
（２）・・・スリーブ
（４）・・・モールドFIG. 1 is a sectional view of the cooling mold, FIG. 2 is a sectional view taken along line 1--2 in FIG. 1, and FIG. 3 is an oblique view of the finned tube. (1)...Cooling water passage (2)...Sleeve (4)...Mold
Claims (1)
包囲し、該モールド内面に熱伝導性が高く耐熱性に優れ
た材料で形成された筒状スリーブ（２）を装着し、スリ
ーブ（２）の肉厚内に軸方向に沿って複数の冷却水通路
（１）を設けた内面フィン付き管製造用冷却鋳型。(1) A cylindrical mold (4) is surrounded by a cooling jacket (5), and a cylindrical sleeve (2) made of a material with high thermal conductivity and excellent heat resistance is attached to the inner surface of the mold. (2) A cooling mold for manufacturing a tube with internal fins, in which a plurality of cooling water passages (1) are provided along the axial direction within the wall thickness of (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12986590A JPH0763809B2 (en) | 1990-05-17 | 1990-05-17 | Cooling mold for manufacturing tubes with internal fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12986590A JPH0763809B2 (en) | 1990-05-17 | 1990-05-17 | Cooling mold for manufacturing tubes with internal fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0422542A true JPH0422542A (en) | 1992-01-27 |
| JPH0763809B2 JPH0763809B2 (en) | 1995-07-12 |
Family
ID=15020197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12986590A Expired - Lifetime JPH0763809B2 (en) | 1990-05-17 | 1990-05-17 | Cooling mold for manufacturing tubes with internal fins |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763809B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125694A (en) * | 1992-10-19 | 1994-05-10 | Hidekazu Hatakeyama | Freeze-aging of frozen shrimp and processed shrimp food prepared by using the aging method |
-
1990
- 1990-05-17 JP JP12986590A patent/JPH0763809B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125694A (en) * | 1992-10-19 | 1994-05-10 | Hidekazu Hatakeyama | Freeze-aging of frozen shrimp and processed shrimp food prepared by using the aging method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0763809B2 (en) | 1995-07-12 |
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