JPH0117782B2 - - Google Patents
Info
- Publication number
- JPH0117782B2 JPH0117782B2 JP56128159A JP12815981A JPH0117782B2 JP H0117782 B2 JPH0117782 B2 JP H0117782B2 JP 56128159 A JP56128159 A JP 56128159A JP 12815981 A JP12815981 A JP 12815981A JP H0117782 B2 JPH0117782 B2 JP H0117782B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- casting
- metal holder
- powder additive
- continuous casting
- 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
- 239000002184 metal Substances 0.000 claims description 36
- 238000005266 casting Methods 0.000 claims description 31
- 239000000654 additive Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 21
- 238000009749 continuous casting Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0668—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for dressing, coating or lubricating
Description
【発明の詳細な説明】
本発明は互に反対方向に同一速度で回転する鋳
造輪あるいは鋳造ベルト間に溶湯を連続的に供給
して、鋳造製品を製造するためのいわゆる移動鋳
型式の連続鋳造装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to continuous casting using a so-called moving mold type for producing cast products by continuously supplying molten metal between casting wheels or casting belts rotating in opposite directions at the same speed. It is related to the device.
移動鋳型式の連続鋳造装置として、特開昭55−
75862号公報に記載されているように、例えば一
対の鋳造輪の給湯側外周で形成されるＶ形溝部
に、溶湯保持器を設置した型式のものがある。こ
の型式のものは他の形式のものと比べて、Ｖ形溝
部において多量の溶湯を収容可能であるため(1)鋳
造速度を大きくとれること、(2)Ｖ形溝部で溶湯の
滞留時間を長くとれるので非金属介在物の浮上作
用が得られること等多くの利点を有している。 As a moving mold type continuous casting device,
As described in Japanese Patent No. 75862, for example, there is a type in which a molten metal retainer is installed in a V-shaped groove formed by the outer periphery of a pair of casting wheels on the hot water supply side. Compared to other types, this type can accommodate a large amount of molten metal in the V-shaped groove, so (1) the casting speed can be increased, and (2) the residence time of the molten metal in the V-shaped groove is longer. It has many advantages, such as the ability to float non-metallic inclusions.
しかしながら粉末添加剤の供給について配慮さ
れておらず、通常の連続鋳造法のように鋳片と鋳
型間に粉末添加剤（パウダー）を充分に供給する
ことが困難であり、粉末添加剤による鋳片の潤
滑、冷却さらには溶湯の密封作用を得ることがで
きないため、鋳片の表面性状を損うという難点が
あり、実用化の障害となつていた。 However, no consideration has been given to the supply of powder additives, and it is difficult to supply enough powder additives between the slab and the mold as in the normal continuous casting method. Since it cannot provide lubrication, cooling, or sealing of the molten metal, it has the disadvantage of damaging the surface quality of the slab, which has been an obstacle to its practical application.
本発明の目的はこのような問題を解決し、良好
な潤滑冷却及び密封作用を得て、表面性状の優れ
た鋳造製品を製造し得る装置を提供することにあ
る。 The object of the present invention is to solve these problems and to provide an apparatus that can produce cast products with excellent surface properties by obtaining good lubrication, cooling, and sealing effects.
以下本発明に係る連続鋳造装置の実施例である
第１図乃至第４図に従つて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a continuous casting apparatus according to the present invention will be described below with reference to FIGS. 1 to 4.
一対の鋳造輪６で構成される移動鋳型の例で示
した第１図において、所望する鋳片８の厚さｔに
調整された鋳造輪６の給湯側の該鋳造輪６の外周
で形成されたＶ形溝部に、溶湯保持器５が跨設さ
れており、タンデイシユ３の底部出口孔１から溶
融金属１０が溶湯保持器５の中央付近へ供給され
る如くしてある。 In FIG. 1, which shows an example of a movable mold composed of a pair of casting wheels 6, a mold is formed on the outer periphery of the casting wheel 6 on the hot water supply side of the casting wheel 6, which is adjusted to the desired thickness t of the slab 8. A molten metal holder 5 is disposed astride the V-shaped groove, and molten metal 10 is supplied from the bottom outlet hole 1 of the tundish 3 to the vicinity of the center of the molten metal holder 5.
溶湯保持器５は一対の鋳造輪６の前記Ｖ形溝部
において、第２図の如く溶湯金属が漏れることな
く貯えられるよう所望の高さを有した広面壁５―
ａ、側面壁５―ｂの各部からなる例えば耐火壁体
でなり、一体形あるいは分割組立形により、湯溜
り４を囲むように形成されている。２は溶融金属
の止棒を示す。７は粉末添加剤供給孔であり、溶
湯保持器５の上端から下端に貫通し、該下端は鋳
造輪６の円周面に向けて、かつ溶湯保持器全周に
亘つてスリツト状に開口した粉末添加剤の流出口
１３とされている。 The molten metal retainer 5 has a wide wall 5 in the V-shaped grooves of the pair of casting wheels 6 and has a desired height so that the molten metal can be stored without leaking as shown in FIG.
It is made up of, for example, a fireproof wall body consisting of parts a and side walls 5-b, and is formed so as to surround the basin 4, either in one piece or in a split assembly type. 2 indicates a molten metal stopper. Reference numeral 7 denotes a powder additive supply hole, which penetrates from the upper end to the lower end of the molten metal holder 5, and the lower end is opened in a slit shape toward the circumferential surface of the casting ring 6 and over the entire circumference of the molten metal holder. It serves as an outlet 13 for powder additives.
該流出口１３の開口寸法は溶融した粉末添加剤
９が鋳造輪６の円周面と接触して該円周面に付着
被覆され連続的な切れ目のない凝固殻を生成する
ように設計されている。 The opening size of the outlet 13 is designed so that the molten powder additive 9 comes into contact with the circumferential surface of the casting wheel 6 and adheres to the circumferential surface to form a continuous solidified shell. There is.
次に本装置による連続鋳造を説明する。タンデ
イシユ３から溶湯保持器５の中へ給湯された溶融
金属は湯溜り４を形成し、該溶融金属は広面壁５
―ａ側では露出した鋳造輪６の外周面の位置イか
ら鋳造輪６によつて冷却が開始し、この近傍から
凝固による殻の生成が始まり、該外周面の位置ロ
までの範囲において、鋳造輪６によつて冷却が継
続される。位置ロから側面壁５―ｂ側も凝固によ
る殻の生成が始まり、冷却装置１５によつて冷却
された後に完全凝固して鋳片８となり、下方に設
置されたピンチローラー（図示せず）により連続
的に引抜かれる。 Next, continuous casting using this apparatus will be explained. The molten metal supplied from the tundish 3 into the molten metal holder 5 forms a pool 4, and the molten metal flows into the wide wall 5.
- On side a, cooling by the casting ring 6 starts from position A of the exposed outer peripheral surface of the casting ring 6, formation of a shell by solidification starts from this vicinity, and casting continues in the range up to position B of the outer peripheral surface. Cooling is continued by ring 6. Formation of a shell by solidification also begins on the side wall 5-b side from position B, and after being cooled by the cooling device 15, it completely solidifies into the slab 8, which is then crushed by a pinch roller (not shown) installed below. pulled out continuously.
他方鋳造に先立ち、粉末添加剤供給孔７内に粉
末添加剤９を導入しておく。該供給孔７内の粉末
添加剤９は、溶湯保持器５を伝達した溶湯熱によ
つて溶融する。溶融した粉末添加剤は、粉末添加
剤供給孔７の下部に溶融プールをつくり、スリツ
ト状の流出口１３において、該流出口１３に対向
した鋳造輪６の表面で冷却され、鋳造輪６の表面
に全面かつ均等に被覆された粉末添加剤の凝固殻
１４が連続して生成される。 On the other hand, the powder additive 9 is introduced into the powder additive supply hole 7 prior to casting. The powder additive 9 in the supply hole 7 is melted by the heat of the molten metal transmitted through the molten metal holder 5. The molten powder additive forms a molten pool at the lower part of the powder additive supply hole 7 , is cooled at the slit-shaped outlet 13 on the surface of the casting wheel 6 facing the outlet 13 , and is cooled on the surface of the casting wheel 6 . A solidified shell 14 of powdered additive is continuously produced which is completely and uniformly coated on the surface.
被覆された粉末添加剤の凝固殻１４は、鋳造輪
６の回転（矢印方向）によつて溶湯保持器５の下
端面と、鋳造輪表面間を通過することにより、溶
湯保持器５の下端面と鋳造輪６の表面の間の密封
作用を発揮し、この間から溶湯が漏れ出ることを
防いでいる。さらに凝固殻１４は、鋳造輪６の回
転によつて鋳片外殻と接触し、連続的に潤滑作用
および均等かつ適正な冷却作用など粉末添加剤作
用を得ることができる。 The solidified shell 14 of the coated powder additive passes between the lower end surface of the molten metal holder 5 and the surface of the casting wheel as the casting wheel 6 rotates (in the direction of the arrow). and the surface of the casting wheel 6, and prevents the molten metal from leaking from this gap. Further, the solidified shell 14 comes into contact with the cast slab outer shell through the rotation of the casting wheel 6, and can continuously obtain powder additive effects such as lubricating effect and uniform and appropriate cooling effect.
本発明の実施態様は溶湯保持器５を吊り手部１
１を介して、保持装置１２に支持させたことによ
り、該保持器５に上向の力を作用させ、溶湯保持
器５の重量によつて、鋳造輪表面に生成された粉
末添加剤の凝固殻１４が、圧壊あるいは剥離しな
いように、該溶湯保持器５による粉末添加剤９及
び鋳造輪６への押付力を調整するものである。 In an embodiment of the present invention, the molten metal holder 5 is
1 and supported by a holding device 12, an upward force is applied to the cage 5, and the weight of the molten metal holder 5 solidifies the powder additive generated on the surface of the casting wheel. The pressing force applied by the molten metal holder 5 to the powder additive 9 and the casting wheel 6 is adjusted so that the shell 14 is not crushed or peeled off.
尚、溶湯保持器５の下向力が、凝固殻１４の適
正な表面作用力に釣合う場合は、保持装置１２は
省略できることは言うまでもなく、溶湯保持器５
を鋳造輪６の上に載架しておくだけで目的が達せ
られる。 It should be noted that if the downward force of the molten metal holder 5 is balanced with the appropriate surface acting force of the solidified shell 14, it goes without saying that the holding device 12 can be omitted.
The purpose can be achieved simply by placing the casting wheel 6 on top of the casting wheel 6.
第３図、第４図は本装置を他の移動式鋳型を備
えた連続鋳造装置に適用した例を示す。 FIGS. 3 and 4 show an example in which this apparatus is applied to another continuous casting apparatus equipped with a movable mold.
第３図は鋳造輪６―１と、冷却つば２０が付設
されたつば付鋳造輪６―２とで構成された連続鋳
造装置のＶ形溝部粉末添加剤供給孔７を設けた溶
湯保持器５を設置し、保持装置１２で該溶湯保持
器５を保持した例を示す。 FIG. 3 shows a molten metal retainer 5 with a V-shaped groove and a powder additive supply hole 7 of a continuous casting device consisting of a casting wheel 6-1 and a flanged casting wheel 6-2 equipped with a cooling collar 20. An example is shown in which the molten metal holder 5 is held by the holding device 12.
第４図は複数の鋳造ベルト車１８に掛けられた
鋳造ベルト１７、四面冷却体１９によつて構成さ
れた連続鋳造装置のＶ形溝部に、粉末添加剤供給
孔７を設けた溶湯保持器５を設置し、保持装置１
２で該溶湯保持器５を保持した例を示す。 FIG. 4 shows a molten metal holder 5 in which a powder additive supply hole 7 is provided in a V-shaped groove of a continuous casting device consisting of a casting belt 17 hung over a plurality of casting belt pulleys 18 and a four-sided cooling body 19. and hold device 1.
2 shows an example in which the molten metal holder 5 is held.
なお、本発明における溶湯保持器は移動鋳型の
両側を塞ぐ、いわゆるサイド堰を含むものであ
る。 Note that the molten metal holder in the present invention includes so-called side weirs that close both sides of the movable mold.
本発明は以上のように粉末添加剤を溶湯保持器
下端面と移動鋳型に供給する如く構成しているた
め、この間の密封作用による溶湯洩れ防止が図ら
れると同時に、移動鋳型に付着供給された粉末添
加剤は溶湯保持器下端面と移動鋳型を通過するた
め、該粉末添加剤を移動鋳型全面均等に被覆させ
ることができる。このため良好な潤滑、冷却作用
により表面性状の優れた鋳造製品を得ることがで
きる。 As described above, the present invention is configured to supply the powder additive to the lower end surface of the molten metal holder and the moving mold, so that the leakage of molten metal is prevented by the sealing action between the two, and at the same time, the powder additive is supplied adhered to the moving mold. Since the powder additive passes through the lower end surface of the molten metal holder and the movable mold, the entire surface of the movable mold can be evenly coated with the powder additive. Therefore, a cast product with excellent surface properties can be obtained due to good lubrication and cooling effects.
第１図は本発明装置の部分断面正面図、第２図
は本発明の要部斜視図、第３図及び第４図は本発
明の他の実施例の部分断面正面図である。
５…溶湯保持器、６…鋳造輪、７…粉末添加剤
供給孔、１２…保持装置。
FIG. 1 is a partially sectional front view of the apparatus of the present invention, FIG. 2 is a perspective view of essential parts of the present invention, and FIGS. 3 and 4 are partially sectional front views of other embodiments of the present invention. 5... Molten metal holder, 6... Casting wheel, 7... Powder additive supply hole, 12... Holding device.
Claims (1)
れるＶ形溝部に、湯溜り部を形成するように溶湯
保持器を設置した連続鋳造装置において、前記溶
湯保持器の上端から下端に貫通して粉末添加剤供
給孔を設け、該供給孔の下端を粉末添加剤の流出
口とした移動鋳型式連続鋳造装置。 ２ 溶湯保持器を保持装置に支持させてなる特許
請求の範囲第１項記載の移動鋳型式連続鋳造装
置。[Scope of Claims] 1. In a continuous casting apparatus in which a molten metal holder is installed to form a pool in a V-shaped groove formed on the hot water supply side of a casting wheel or a casting belt, from the upper end of the molten metal holder A moving mold type continuous casting device, which has a powder additive supply hole penetrating through the lower end and uses the lower end of the supply hole as an outlet for the powder additive. 2. The moving mold type continuous casting apparatus according to claim 1, wherein the molten metal holder is supported by a holding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12815981A JPS5832548A (en) | 1981-08-18 | 1981-08-18 | Moving mold type continuous casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12815981A JPS5832548A (en) | 1981-08-18 | 1981-08-18 | Moving mold type continuous casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832548A JPS5832548A (en) | 1983-02-25 |
| JPH0117782B2 true JPH0117782B2 (en) | 1989-04-03 |
Family
ID=14977839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12815981A Granted JPS5832548A (en) | 1981-08-18 | 1981-08-18 | Moving mold type continuous casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832548A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60171650U (en) * | 1984-04-20 | 1985-11-14 | 三菱重工業株式会社 | Belt type continuous casting equipment |
| JPH01273653A (en) * | 1988-04-27 | 1989-11-01 | Nippon Steel Corp | Method for lubricating end part of twin drum type continuous casting machine |
| US5027888A (en) * | 1989-01-31 | 1991-07-02 | Hitachi Zosen Corporation | Method and apparatus for sealing molten metal for a twin-roll type continous casting apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2956320A (en) * | 1955-12-28 | 1960-10-18 | Olin Mathieson | Casting of metal |
-
1981
- 1981-08-18 JP JP12815981A patent/JPS5832548A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2956320A (en) * | 1955-12-28 | 1960-10-18 | Olin Mathieson | Casting of metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832548A (en) | 1983-02-25 |
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