JPH0217732Y2 - - Google Patents
Info
- Publication number
- JPH0217732Y2 JPH0217732Y2 JP1984122068U JP12206884U JPH0217732Y2 JP H0217732 Y2 JPH0217732 Y2 JP H0217732Y2 JP 1984122068 U JP1984122068 U JP 1984122068U JP 12206884 U JP12206884 U JP 12206884U JP H0217732 Y2 JPH0217732 Y2 JP H0217732Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- water
- short side
- pair
- diagonal
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005499 meniscus Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
本願考案は連続鋳造用鋳型に関し、更に詳細に
は、短辺銅板コーナ変形を防止し、均一冷却機能
のすぐれた連続鋳造用鋳型に関するものである。[Detailed Description of the Invention] The present invention relates to a continuous casting mold, and more particularly, to a continuous casting mold that prevents short side copper plate corner deformation and has an excellent uniform cooling function.
連続鋳造における４面組立型鋳型は、連鋳片の
厚さに相当する間隔を置いて配置された一対の長
辺ブロツクと、連鋳片の幅に相当する間隔を置し
て配置され、かつ長辺ブロツクの壁面間に挟まれ
る形態の一対の短辺ブロツクとから成る。 A four-sided assembly mold for continuous casting has a pair of long side blocks arranged at an interval corresponding to the thickness of the continuous cast piece, and a pair of long side blocks arranged at an interval corresponding to the width of the continuous cast piece, and It consists of a pair of short side blocks sandwiched between the walls of the long side blocks.
このような４面組立型鋳型においては、長辺ブ
ロツクの一対の面に挟まれる短辺ブロツクの２面
の鋳型壁両端部において変形が発生し易く、特に
高温の溶鋼が直接接触するメニスカス部において
その変形が著しい。 In such a four-sided assembly mold, deformation is likely to occur at both ends of the two mold walls of the short side block sandwiched between a pair of surfaces of the long side block, especially at the meniscus part where hot molten steel comes into direct contact. The deformation is remarkable.
実開昭57−49049号公報に記載の連続鋳造用鋳
型は、上記せる鋳型の欠点を解消せんが為に提供
されたものであるが、それでもなお下記の様な
種々の欠点を内存する。 Although the continuous casting mold described in Japanese Utility Model Application Publication No. 57-49049 was provided in order to eliminate the above-mentioned drawbacks of the mold, it still has various drawbacks as described below.
即ち、第１図及び第２図に示す様に短辺ブロツ
クの銅板１の上部のみに分岐水溝を設けているた
め、冷却水が下側から流れた場合に下部の水路面
積より上部の水路面積が大きくなり、その為に上
部では流速が低下し冷却効果が低下する。 In other words, as shown in Figures 1 and 2, branch water grooves are provided only in the upper part of the copper plate 1 of the short side block, so when cooling water flows from the bottom, the area of the upper water channel is larger than that of the lower water channel. The area becomes larger, which reduces the flow velocity in the upper part and reduces the cooling effect.
又、水溝を分岐させている為に、分岐部の渦流
によつて圧力損失を生起し、分岐水溝への流量が
低減し、そのため流速は更に低下する。その上ス
リツトタイプ銅板１のバイパス水溝２′は実用性
に乏しく、短辺ブロツクのバツクフレーム３は図
の様に銅板巾より狭い場合が多く、最端部の水溝
２はａ寸法だけコーナ部より離れて加工される
が、コーナ冷却が必要とされる部分は、ａ寸法よ
り外側であり、図の様にバイパス水溝２′を加工
するとＯリング４より外側となり水洩れを生ずる
ものである。 Furthermore, since the water groove is branched, a pressure loss occurs due to the vortex flow at the branch part, and the flow rate to the branch water groove is reduced, thereby further reducing the flow velocity. Moreover, the bypass water groove 2' of the slit type copper plate 1 is impractical, and the back frame 3 of the short side block is often narrower than the width of the copper plate as shown in the figure, and the water groove 2 at the end is at the corner by the dimension a. Although it is machined further away, the part that requires corner cooling is outside dimension a, and if the bypass water groove 2' is machined as shown in the figure, it will be outside the O-ring 4, causing water leakage. .
更に第３図に示した穴バイパスタイプは、穴バ
イパス５内にスケールが付着して熱伝導を低下さ
せるため、鋳型の表面温度を上昇させると共に、
スケールの除去が困難である。又深穴加工を精度
良く仕上げることが難しく、穴加工開始部のメク
ラ処理のために溶接を行うと銅母材の特性が劣化
するという欠点もあるのである。 Furthermore, in the hole bypass type shown in FIG. 3, scale adheres inside the hole bypass 5 and reduces heat conduction, which increases the surface temperature of the mold and
Difficult to remove scale. Furthermore, it is difficult to finish deep hole drilling with high precision, and when welding is performed to blank the starting part of hole drilling, the characteristics of the copper base metal deteriorate.
本願考案は、上述の欠点を解消する連続鋳造用
鋳型に係るものであり、その要旨は一対の長辺ブ
ロツクと、これらの壁面間に挟まれた一対の短辺
ブロツクとから成る鋳型に於いて、短辺ブロツク
の両コーナ部の水溝のバツクフレーム側基端部に
縦方向に連通した斜め水溝を形成し、両コーナ部
における冷却を均一にすることを特徴とする連続
鋳造用鋳型である。 The present invention relates to a mold for continuous casting that eliminates the above-mentioned drawbacks, and its gist is that the mold consists of a pair of long side blocks and a pair of short side blocks sandwiched between these walls. , a continuous casting mold characterized by forming diagonal water grooves that communicate vertically at the base end of the back frame side of the water grooves at both corners of the short side block to uniformly cool cooling at both corner portions. be.
以下に、本願考案の実施例を図面に基づき詳述
する。 Embodiments of the present invention will be described in detail below based on the drawings.
第４図は、連続鋳造用鋳型の平面図であり鋳型
Ａは、一対の長辺ブロツク６，６と、該長辺ブロ
ツク６，６の壁面間に挟まれた一対の短辺ブロツ
ク７，７と成り、短辺ブロツク７，７の高温の溶
鋼と直接接触する部所及びブロツク隅角部方向に
は第５図で示したような斜め水溝８を設けてい
る。 FIG. 4 is a plan view of a continuous casting mold, and the mold A has a pair of long side blocks 6, 6 and a pair of short side blocks 7, 7 sandwiched between the walls of the long side blocks 6, 6. Therefore, diagonal water grooves 8 as shown in FIG. 5 are provided in the short side blocks 7, 7 at the portions that come into direct contact with the high temperature molten steel and in the direction of the block corners.
即ち、短辺ブロツク７は、バツクフレーム３に
銅板１をボルト９等にて固定し、銅板１に水溝
２，２……を等間隔に形成し、左右両端水溝２ａ
の基端部よりブロツク７隅角部方向にそれぞれ該
水溝２ａの基端部縦方向に連通した斜め水溝８を
形成し、メニスカス部およびブロツク縦方向の冷
却を強化している。なお図中４はＯリングであ
る。 That is, in the short side block 7, the copper plate 1 is fixed to the back frame 3 with bolts 9, etc., and water grooves 2, 2, .
Diagonal water grooves 8 are formed extending vertically from the base end of the water groove 2a toward the corners of the block 7 to strengthen cooling in the meniscus and in the vertical direction of the block. Note that 4 in the figure is an O-ring.
次に第６図は、上記せる短辺ブロツク７の100
mm高さのメニスカス部における温度分布を示した
ものであり、厚み37mmの銅板１に18.5mm間隔毎に
水溝２，２……を設け、端部の水溝２ａより30度
の傾斜角でもつて隅角部方向へ斜め水溝８を設
け、該水溝８の奥行を21.17mmとして、鋳造速度
1.8ｍ／分、冷却水流速5.9ｍ／秒、冷却水温度35
℃、銅板熱伝導率290Kal／mhr℃で測定しても
のである。 Next, Figure 6 shows the short side block 7 shown above.
This figure shows the temperature distribution in the meniscus part with a height of mm. Water grooves 2, 2, etc. are provided at intervals of 18.5 mm on a copper plate 1 with a thickness of 37 mm, and even at an inclination angle of 30 degrees from the water groove 2a at the end. A diagonal water groove 8 is provided in the direction of the corner, and the depth of the water groove 8 is 21.17 mm, and the casting speed is
1.8m/min, cooling water flow rate 5.9m/sec, cooling water temperature 35
℃, copper plate thermal conductivity 290Kal/mhr℃.
又、第７図は、上記と同一条件の下に、斜め水
溝８の無い従来の鋳型の温度分布を測定したもの
である。 Furthermore, FIG. 7 shows the temperature distribution of a conventional mold without diagonal water grooves 8 measured under the same conditions as above.
従来の鋳型では端面部が380℃、中央部が300℃
と端面部が高く、変形の原因となることが明らか
であるが、本考案鋳型の如く斜め水溝８を設ける
ことによつて、端面部が295℃、中央部が300℃と
殆ど温度差が無くなつている。 In conventional molds, the temperature is 380℃ at the end and 300℃ at the center.
It is clear that the edges are high and cause deformation, but by providing the diagonal water groove 8 as in the mold of the present invention, the temperature difference is almost 295℃ at the edges and 300℃ at the center. It's gone.
即ち、短辺ブロツク７の両端間に斜め方向に水
溝８を設けた効果が顕著に現れているのである。 That is, the effect of providing the water groove 8 in the diagonal direction between both ends of the short side block 7 is clearly visible.
この様に、鋳型に斜め方向に水溝８を設ければ
温度分布のバラツキを小さくできる為に、鋳型の
大きさ、鋳造速度、それに冷却水の温度や量に応
じて、水溝２及び８の幅奥行、傾斜角度等を適宜
の大きさに設定することが重要である。 In this way, by providing the water grooves 8 diagonally in the mold, it is possible to reduce variations in temperature distribution, so depending on the size of the mold, the casting speed, and the temperature and amount of cooling water, the water grooves 2 and 8 can be It is important to set the width, depth, angle of inclination, etc. to appropriate sizes.
なお、上記斜め水溝８は、両コーナ部の水溝基
端部縦方向に連通しているため、スケール付着状
況の確認がし易く、スケールの除去も簡単にで
き、しかも直線状の水溝２と該水溝基端部縦方向
に連通しているため、斜め水溝８内へも確実な流
速が得られ、その上斜め水溝の加工が精度良く行
え、Ｏリング部からの水洩も防止できる。 In addition, since the diagonal water groove 8 is connected vertically to the base end of the water groove at both corners, it is easy to check the scale adhesion status, and the scale can be easily removed. 2 and the base end of the water groove in the vertical direction, a reliable flow rate can be obtained even into the diagonal water groove 8, and the machining of the diagonal water groove can be performed with high precision, preventing water leakage from the O-ring part. can also be prevented.
以上述べたように、本考案によれば、短辺ブロ
ツクの両コーナ部の水溝基端部に縦方向に連通し
た斜め水溝を形成している為、短辺ブロツクの両
コーナ部における冷却が均一となつて熱変形を防
止出来る様になり、その為、長辺ブロツクと短辺
ブロツクの突き合わせ面に生じていた隙間を無く
し、鋳造中の溶鋼差し込みによるブレークアウト
事故や鋳片品質の劣化、鋳型そのものの寿命の低
下を防止出来、連続鋳造に於ける経済的効果は極
めて大きいものである。 As described above, according to the present invention, since diagonal water grooves communicating vertically are formed at the base ends of the water grooves at both corners of the short side block, cooling at both corner portions of the short side block is achieved. This makes it possible to prevent thermal deformation, which eliminates the gap between the long side block and short side block, which prevents breakout accidents and deterioration of slab quality due to insertion of molten steel during casting. , it is possible to prevent a decrease in the life of the mold itself, and the economic effect in continuous casting is extremely large.
第１図から第３図はそれぞれ従来の鋳型の要部
を示す略図、第４図は本考案の実施例を示す鋳型
の平面図、第５図は本考案の要部を示す断面図、
第６図は本考案の鋳型の温度分布図、第７図は従
来の鋳型の温度分布図、第８図は第５図に於る
−線断面拡大図、第９図は第５図に於る−
線断面拡大図。
図中、Ａ……連続鋳造用鋳型、１……短辺ブロ
ツクの銅板、２……水溝、６……長辺ブロツク、
７……短辺ブロツク、８……斜め水溝。
1 to 3 are schematic diagrams showing the main parts of a conventional mold, FIG. 4 is a plan view of a mold showing an embodiment of the present invention, and FIG. 5 is a sectional view showing the main parts of the present invention,
Fig. 6 is a temperature distribution diagram of the mold of the present invention, Fig. 7 is a temperature distribution diagram of a conventional mold, Fig. 8 is an enlarged cross-sectional view taken along the - line in Fig. Ru-
Enlarged line cross-sectional view. In the figure, A...Mold for continuous casting, 1...Copper plate of short side block, 2...Water groove, 6...Long side block,
7...Short side block, 8...Diagonal water groove.
Claims (1)
た一対の短辺ブロツクとから成る鋳型に於いて、
短辺ブロツクの両コーナ部の水溝のバツクフレー
ム側基端部に縦方向に連通した斜め水溝を形成
し、両コーナ部における冷却を均一にするように
したことを特徴とする連続鋳造用鋳型。 In a mold consisting of a pair of long side blocks and a pair of short side blocks sandwiched between these walls,
For continuous casting, characterized in that diagonal water grooves that communicate vertically are formed in the base end of the back frame side of the water grooves at both corners of the short side block, so that cooling is uniform in both corner parts. template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12206884U JPS6136341U (en) | 1984-08-08 | 1984-08-08 | Continuous casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12206884U JPS6136341U (en) | 1984-08-08 | 1984-08-08 | Continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6136341U JPS6136341U (en) | 1986-03-06 |
| JPH0217732Y2 true JPH0217732Y2 (en) | 1990-05-17 |
Family
ID=30680829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12206884U Granted JPS6136341U (en) | 1984-08-08 | 1984-08-08 | Continuous casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136341U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749049B2 (en) * | 1974-12-14 | 1982-10-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749049U (en) * | 1980-09-02 | 1982-03-19 |
-
1984
- 1984-08-08 JP JP12206884U patent/JPS6136341U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749049B2 (en) * | 1974-12-14 | 1982-10-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6136341U (en) | 1986-03-06 |
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