JPH02299756A - Method and apparatus for vertical type continuous casting - Google Patents
Method and apparatus for vertical type continuous castingInfo
- Publication number
- JPH02299756A JPH02299756A JP11975489A JP11975489A JPH02299756A JP H02299756 A JPH02299756 A JP H02299756A JP 11975489 A JP11975489 A JP 11975489A JP 11975489 A JP11975489 A JP 11975489A JP H02299756 A JPH02299756 A JP H02299756A
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- JP
- Japan
- Prior art keywords
- molten metal
- block
- casting
- mold
- starting
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009749 continuous casting Methods 0.000 title claims description 17
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 238000005266 casting Methods 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000012733 comparative method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- -1 if it is not cooled Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 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、鋳造初期から表面品質良好な鋳塊が得られる
竪型連続鋳造方法及びその装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vertical continuous casting method and an apparatus therefor, by which an ingot with good surface quality can be obtained from the initial stage of casting.
竪型連続鋳造方法は、上下端開放の水冷鋳型の上端より
溶融金属を注入し、上記溶融金属を上記鋳型内にて凝固
せしめて鋳塊となし、これを下方へ連続的に引出す鋳造
方法であって、鋳造の開始は、第２図に例示したように
水冷鋳型ｔの底部に、湯漏れ防止の為に上記鋳型１に内
接して昇降する一体ものの金属製スターティングブロッ
ク２を配置し、しかるのちスパウト３を通して溶融金属
４を鋳型１内に注入し、上記溶融金属４の鋳型１及びス
ターティングブロック２の上端部５に接した部分が凝固
したところで、上記スターティングブロック２を降下さ
せて鋳塊を連続的に引出してなされるものである。The vertical continuous casting method is a casting method in which molten metal is injected from the upper end of a water-cooled mold with open upper and lower ends, and the molten metal is solidified in the mold to form an ingot, which is continuously drawn downward. To start casting, an integral metal starting block 2 that is inscribed in the mold 1 and moves up and down is placed at the bottom of the water-cooled mold t to prevent leakage, as illustrated in FIG. Thereafter, molten metal 4 is injected into the mold 1 through the spout 3, and when the portion of the molten metal 4 in contact with the mold 1 and the upper end 5 of the starting block 2 solidifies, the starting block 2 is lowered. It is made by continuously drawing out the ingot.
ところで上記のスターティングブロックは、銅又は鉄等
の金属材料から構成されている為に、熱伝導性並びに溶
融金属との濡れ性が良く、従って鋳造開始時に鋳型内に
供給される最初の溶融金属は、上記スターティングブロ
ックの上端部に落下して瞬時に凝固し、その部分の鋳塊
表面は不連続凝固形状となり湯じわ又はアバタ状の表面
欠陥が発生する。而して上記の不連続凝固部分の境界は
深く切れ込んでいて、加工時に剥離したり又は剥離部分
が加工材中に巻き込まれて押込欠陥となるので、前記の
表面欠陥を有する鋳塊先端部分は、加工前に予め切断し
除去する必要があり、その結果切断工程が余分に加わり
、更に製造歩留りが低下するという問題があった。By the way, since the above-mentioned starting block is made of a metal material such as copper or iron, it has good thermal conductivity and wettability with molten metal, so it is the first molten metal supplied into the mold at the start of casting. The ingot falls onto the upper end of the starting block and instantly solidifies, and the surface of the ingot in that area becomes discontinuously solidified, resulting in wrinkles or avatar-like surface defects. The boundaries of the above-mentioned discontinuous solidified portions are deeply cut, and the peeled portions may peel off during machining, or the peeled portions may get caught up in the workpiece, resulting in indentation defects. However, it is necessary to cut and remove the material before processing, which results in an additional cutting process and further reduces the manufacturing yield.
〔課題を解決するための手段及び作用］本発明はかかる
状況に鑑みなされたもので、その目的とするところは、
鋳造初期から表面品質良好な鋳塊を製造し得る竪型連続
鋳造方法及びその装置を提供することにある。[Means and effects for solving the problem] The present invention was made in view of the above situation, and its purpose is to:
It is an object of the present invention to provide a vertical continuous casting method and an apparatus thereof that can produce an ingot with good surface quality from the initial stage of casting.
即ち本請求項１の発明は、上下端開放の水冷鋳型の上端
より溶融金属を注入し、面記鋳型内にて前記溶融金属を
冷却凝固して鋳塊となし、該鋳塊を前記鋳型下端より連
続的に引出してなる竪型連続鋳造方法において、鋳造開
始時に上記鋳型の底部に配置するスターティングブロッ
クの熔融金属と接触する上端部の温度を１／３Ｔ（Ｔは
溶融金属の凝固点、”Ｃ）以上の温度に加熱して溶融金
属を注入し鋳造を開始することを特徴とする竪型連続鋳
造方法である。That is, the invention of claim 1 injects molten metal from the upper end of a water-cooled mold with open upper and lower ends, cools and solidifies the molten metal in the surface mold to form an ingot, and pours the ingot into the lower end of the mold. In a vertical continuous casting method in which more continuous withdrawal is performed, the temperature of the upper end of the starting block placed at the bottom of the mold in contact with the molten metal at the start of casting is set to 1/3T (T is the freezing point of the molten metal). C) This is a vertical continuous casting method characterized by heating to a temperature above and injecting molten metal to start casting.
この発明方法は、竪型連続鋳造方法において、鋳造開始
時に用いられるスターティングブロックの上端部の温度
を所定温度以上の温度に加熱して、鋳造開始時に供給さ
れる溶融金属がスターティングブロックの上端部で瞬時
に凝固することなく、一旦溶融状態で貯留されたのち、
連続的に凝固するようにして湯じわ等の表面欠陥の発生
を防止ｒるようにしたものである。In the vertical continuous casting method, this invention method heats the upper end of the starting block used at the start of casting to a temperature higher than a predetermined temperature so that the molten metal supplied at the start of casting is transferred to the upper end of the starting block. After being stored in a molten state without instantaneous solidification,
It is designed to solidify continuously to prevent surface defects such as wrinkles.
上記発明方法において、鋳造開始時におけるスターティ
ングブロック上端部の温度を溶融金属の凝固点の１／３
以上の温度（”Ｃ）に限定した理由は、上記温度未満で
は最初に供給される溶湯がスターティングブロック上端
部で不連続凝固を起こして湯じわ等の欠陥が発生する為
である。In the method of the invention, the temperature of the upper end of the starting block at the start of casting is set to 1/3 of the freezing point of the molten metal.
The reason for limiting the temperature to the above temperature ("C") is that below the above temperature, the molten metal initially supplied will solidify discontinuously at the upper end of the starting block, causing defects such as molten metal wrinkles.
本請求項２の発明は、前記請求項１の発明を実施するた
めの装置であって、上下端開放の水冷鋳型からなる竪型
連続鋳造装置において、鋳造開始時に上記鋳型の底部に
配置するスターティングブロックを溶融金属と接触する
上方ブロックと本体とに分割し、双方を着脱可能に接続
したことを特徴とする竪型連続鋳造装置である。The invention according to claim 2 is an apparatus for carrying out the invention according to claim 1, which is a vertical continuous casting apparatus consisting of a water-cooled mold with open upper and lower ends. This vertical continuous casting device is characterized in that the casting block is divided into an upper block that contacts molten metal and a main body, and both are detachably connected.
本発明装置を用いた鋳造開始方法は、鋳造前にスターテ
ィングブロックの上方ブロックを本体からはずし、これ
を加熱炉等で所定温度に加熱し、この加熱した上方ブロ
ックを鋳造直前に本体に接続して直ちに溶融金属を注入
してなされるものであって、スターティングブロックは
分割した上方ブロックだけを加熱するので作業が容易な
上、加熱が迅速になされ、又加熱装置も小型化できる。The method for starting casting using the apparatus of the present invention is to remove the upper block of the starting block from the main body before casting, heat it to a predetermined temperature in a heating furnace, etc., and connect the heated upper block to the main body immediately before casting. The starting block is made by immediately injecting molten metal into the starting block, and since only the divided upper block is heated, the work is easy, the heating can be done quickly, and the heating device can also be made smaller.
本発明装置において、上方ブロックと本体とを着脱可能
に接続する方法としては、テーパーピンを差し込んで接
続する方法、ボルト締め方法等着脱が迅速になされる方
法が好ましい。In the device of the present invention, as a method for removably connecting the upper block and the main body, it is preferable to use a method of connecting by inserting a taper pin, a bolt tightening method, etc., which allow for quick connection and disconnection.
本発明装置にあっては、上方ブロックの上端部が所定温
度以上に加熱されている為、鋳型内に注入された溶融金
属は、上記上方ブロンク上にて溶融状態で貯留される。In the apparatus of the present invention, since the upper end of the upper block is heated to a predetermined temperature or higher, the molten metal injected into the mold is stored in a molten state on the upper bronc.
本発明装置において、上方ブロックと本体とを密着させ
て接続し、且つ上記本体に冷却水噴射ノズルを配設し、
これにより上記本体に密着して接続された上方ブロック
を冷却して、上方ブロック上の溶融金属を迅速に冷却す
ることにより、鋳型とスターティングブロック間の湯漏
れが確実に防止され、又凝固殻が強固に形成される。尚
、上記冷却水噴射ノズルの配設位置は、特に限定するも
のではない。In the device of the present invention, the upper block and the main body are closely connected, and a cooling water injection nozzle is disposed on the main body,
This cools the upper block closely connected to the main body and rapidly cools the molten metal on the upper block, reliably preventing leakage between the mold and the starting block, and solidifying the solidified metal. is strongly formed. Incidentally, the arrangement position of the cooling water injection nozzle is not particularly limited.
以下に本発明を実施例により詳細に説明する。 The present invention will be explained in detail below using examples.
実施例１
第１図は本発明の竪型連続鋳造装置の一実施例を示す断
面図である０図において６，７はスターティングブロッ
クを構成するそれぞれ上方ブロック及び本体である。Embodiment 1 FIG. 1 is a sectional view showing an embodiment of the vertical continuous casting apparatus of the present invention. In FIG.
鋳型ｌには、内寸が縦１５０−１横５００ｍｍ、長さ３
００胴の水冷鋳型を、又スターティングブロックには！
１５０扇、横５００ｍｍ、長さ４００叩のステンレス製
のスターティングブロック２を用いた。The mold L has internal dimensions of 150 mm in length, 500 mm in width, and 3 mm in length.
The water-cooled mold for the 00 shell is also used as a starting block!
A stainless steel starting block 2 with a diameter of 150 mm, a width of 500 mm, and a length of 400 strokes was used.
上記スターティングブロック２は長さ１００ｍ＋ｓの上
方ブロンクロと長さ３００Ｍの本体７とに分割されてお
り、双方は密着させてテーパーピン８により接続されて
いる。スターティングブロック本体７の中央部には横方
向に１００ｍ＋φの貫通孔９が設けられ、この貫通孔９
には噴水能力５ポ／Ｈの冷却水噴射ノズル１０が配置さ
れている。The starting block 2 is divided into an upper block having a length of 100 m+s and a main body 7 having a length of 300 m, both of which are closely connected by a taper pin 8. A through hole 9 of 100 m + φ is provided in the center of the starting block body 7 in the horizontal direction.
A cooling water injection nozzle 10 with a water spray capacity of 5 pores/hour is disposed.
而して上記装置を用いて純銅スラブを６ｏｋｇ／ｍｉｎ
の速度で鋳造した。鋳造開始に当たって、先ず上記スタ
ーティングブロック２のテーパーピン８を抜きとって上
方ブロック６を取りはずし、この上方ブロック６を図示
しない電気炉にて所定温度に加熱し、これを鋳造開始直
前に電気炉より取出してスターティングブロック２の本
体７にテーパーピン８により接続し、次いでこのスター
ティングブロック２を、上方ブロック６が鋳型１内に位
置するように配置したのち、直ちに図示しないスパウト
から溶融鋼を注入して鋳造を開始した。Using the above equipment, pure copper slabs were produced at a rate of 6 ok/min.
It was cast at a speed of To start casting, first remove the taper pin 8 of the starting block 2 and remove the upper block 6, heat the upper block 6 to a predetermined temperature in an electric furnace (not shown), and heat it from the electric furnace immediately before starting casting. The starting block 2 is taken out and connected to the main body 7 of the starting block 2 by a taper pin 8, and then the starting block 2 is placed so that the upper block 6 is located in the mold 1, and then molten steel is immediately injected from a spout (not shown). and started casting.
尚、上記スパウトには内径２０ｍ５＋の耐火物製スパウ
トを用いた。Note that a refractory spout with an inner diameter of 20 m5+ was used as the spout.
鋳型ｌ内に溶融鋼がｌｏＯｗ＋深さに貯留したところで
、冷却水噴射ノズル１０から水を噴出させてスターティ
ングブロック本体７を冷却し、上記本体７に密着して接
続した上方ブロック６上の溶融鋼の凝固を促進し、しか
るのちスターティングブロック２を降下させて純銅スラ
ブを連続鋳造した。When the molten steel is stored in the mold l to a depth of loOw+, water is jetted from the cooling water injection nozzle 10 to cool the starting block main body 7, and the molten steel on the upper block 6 closely connected to the main body 7 is melted. Solidification of the steel was promoted, and then the starting block 2 was lowered to continuously cast pure copper slabs.
上記において、上方ブロック６の上端部５の温度は種々
に変化させ、父上記温度は、鋳造直前に図示しない熱電
対により測定して上記上端部が所定温度に達したところ
で溶融鋼の注入を開始した。In the above, the temperature of the upper end 5 of the upper block 6 is varied variously, and the above temperature is measured by a thermocouple (not shown) immediately before casting, and when the upper end reaches a predetermined temperature, the injection of molten steel is started. did.
比較例１
実施例１において、上方ブロックの上端部温度を３３０
°Ｃとした他は実施例１と同じ方法により鋳造を開始し
純銅スラブを連続鋳造した。Comparative Example 1 In Example 1, the upper end temperature of the upper block was set to 330
Casting was started in the same manner as in Example 1, except that the temperature was set at °C, and pure copper slabs were continuously cast.
比較例２
実施例１において、スターティングブロックに第２図に
示した従来のスターティングブロックを用いた他は、実
施例１と同じ方法により鋳造を開始し、純銅スラブを連
続鋳造した。Comparative Example 2 Casting was started in the same manner as in Example 1, except that the conventional starting block shown in FIG. 2 was used as the starting block, and pure copper slabs were continuously cast.
斯くの如くして得られた各々の鋳塊の先端部分の表面晶
質を調査した。結果は主な製造条件を併記して第１表に
示した。The surface crystallinity of the tip of each ingot thus obtained was investigated. The results are shown in Table 1 along with the main manufacturing conditions.
第１表
第１表より明らかなように本発明方法品（Ｎｏ１〜３）
は、湯じわがなく、又鋳肌も良好なものであった。As is clear from Table 1, the products produced by the method of the present invention (Nos. 1 to 3)
There were no hot water wrinkles and the casting surface was also good.
これに対し比較方法品のＮｏ４は、スターティングブロ
ックの上端部の温度が溶融鋼の凝固点の１／３の温度を
下回った為、上記スターティングブロックの上端部にお
いて溶融鋼は、一部が不連続に凝固し、その結果湯しわ
が発生し、又鋳肌もやや劣るものとなった。又Ｎｏ５は
スターティングブロックを加熱しなかった高温じわが多
数発生し、鋳肌もアバタの多い不良なものとなった。On the other hand, in comparison method product No. 4, the temperature at the upper end of the starting block was lower than 1/3 of the freezing point of the molten steel, so some of the molten steel at the upper end of the starting block was It solidified continuously, resulting in wrinkles and poor casting surface. In addition, in No. 5, the starting block was not heated, resulting in many high-temperature wrinkles, and the casting surface was defective with many flops.
上記各々の純銅スラブを熱間圧延により、板素材に加工
したところ、本発明方法品は全体に亘り高品質の素材と
なし得たが、比較方法品は、鋳塊の先端に相当する部分
にはがれや押し込み欠陥が多数存在した。When each of the above-mentioned pure copper slabs was processed into a plate material by hot rolling, the product manufactured using the method of the present invention could be made into a material of high quality throughout, but the product manufactured using the comparative method could be made into a material with high quality at the part corresponding to the tip of the ingot. There were many peeling and indentation defects.
上記実施例１においては、スターティングブロック本体
は、溶融金属注入後間もなくして冷却水を噴射して冷却
したが、上方ブロックの加熱温度が比較的低い場合は、
必ずしも冷却する必要はない、しかしながら上方ブロッ
クの温度が溶融金属の凝固点の１／２を趨えるような高
温の場合は、冷却しないと鋳型とスターティングブロッ
ク間に湯もれが生じ、鋳造不可能となる場合がある。In Example 1, the starting block body was cooled by injecting cooling water soon after the molten metal was injected, but if the heating temperature of the upper block is relatively low,
Cooling is not necessarily required, but if the temperature of the upper block is so high that it exceeds 1/2 of the freezing point of the molten metal, if it is not cooled, water will leak between the mold and the starting block, making casting impossible. In some cases,
上記実施例においては、純銅スラブを鋳造する場合につ
いて説明したが、本発明はＡＮ合金等の他の金属の鋳造
にも、又ビレット等地の形状の鋳造にも適用し得るもの
である。In the above embodiment, the case of casting a pure copper slab was explained, but the present invention can also be applied to casting of other metals such as AN alloy, and also to casting of shapes such as billets.
以上述べたように本発明によれば、鋳造初期から表面品
質に優れた鋳塊を製造することができるので、鋳塊先端
部の不良箇所を切断し除去する手間が省け、父上記切断
除去に伴う歩留り低下が防止できて、工業上顕著な効果
を奏する。As described above, according to the present invention, an ingot with excellent surface quality can be produced from the initial stage of casting, which eliminates the need to cut and remove defective parts at the tip of the ingot. It is possible to prevent the accompanying decrease in yield, resulting in a remarkable industrial effect.
第１図は、本発明の竪型連続鋳造装置の一実施例を示す
断面図、第２図は従来の装置を使用した竪型連続鋳造方
法の説明図である。
１・・・鋳型、 ２・・・スターティングブロック、
５・・・上端部、 ６・・・上方ブロック、 ７・・・
本体、ＩＯ・・・冷却水噴射ノズル。
特許出願人 古河電気工業株式会社第１図FIG. 1 is a sectional view showing an embodiment of the vertical continuous casting apparatus of the present invention, and FIG. 2 is an explanatory diagram of a vertical continuous casting method using a conventional apparatus. 1...Mold, 2...Starting block,
5... Upper end portion, 6... Upper block, 7...
Main body, IO...Cooling water injection nozzle. Patent applicant Furukawa Electric Co., Ltd. Figure 1
Claims (3)
し、前記鋳型内にて前記溶融金属を冷却凝固して鋳塊と
なし、該鋳塊を前記鋳型下端より連続的に引出してなる
竪型連続鋳造方法において、鋳造開始時に上記鋳型の底
部に配置するスターティングブロックの溶融金属と接触
する上端部の温度を１／３Ｔ（Ｔは溶融金属の凝固点、
℃）以上の温度に加熱して溶融金属を注入して鋳造を開
始することを特徴とする竪型連続鋳造方法。(1) Molten metal is injected from the upper end of a water-cooled mold with open upper and lower ends, the molten metal is cooled and solidified in the mold to form an ingot, and the ingot is continuously pulled out from the lower end of the mold. In the vertical continuous casting method, the temperature of the upper end of the starting block placed at the bottom of the mold in contact with the molten metal at the start of casting is set to 1/3T (T is the freezing point of the molten metal,
A vertical continuous casting method characterized by starting casting by heating the molten metal to a temperature above 30°F (°C) or higher and injecting the molten metal.
において、鋳造開始時に上記鋳型の底部に配置するスタ
ーティングブロックを溶融金属と接触する上方ブロック
と本体とに分割し、双方を着脱可能に接続したことを特
徴とする竪型連続鋳造装置。(2) In a vertical continuous casting device consisting of a water-cooled mold with open upper and lower ends, the starting block placed at the bottom of the mold at the start of casting is divided into an upper block that contacts the molten metal and a main body, both of which can be attached and detached. A vertical continuous casting device characterized by being connected to.
を密着させて着脱可能に接続し、又上記本体に、該本体
を冷却するための冷却水噴射ノズルを設けたことを特徴
とする請求項２に記載の竪型連続鋳造装置。(3) The upper block of the starting block and the main body are closely connected and removably connected, and the main body is provided with a cooling water injection nozzle for cooling the main body. The vertical continuous casting device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11975489A JPH02299756A (en) | 1989-05-12 | 1989-05-12 | Method and apparatus for vertical type continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11975489A JPH02299756A (en) | 1989-05-12 | 1989-05-12 | Method and apparatus for vertical type continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02299756A true JPH02299756A (en) | 1990-12-12 |
Family
ID=14769335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11975489A Pending JPH02299756A (en) | 1989-05-12 | 1989-05-12 | Method and apparatus for vertical type continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02299756A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246991A (en) * | 2018-01-26 | 2018-07-06 | 龙岩学院 | A kind of semi-continuous casting device and method for inhibiting magnesium alloy ingot blank cracking |
| CN111468691A (en) * | 2020-06-12 | 2020-07-31 | 无锡隆达金属材料有限公司 | Novel copper-nickel alloy semi-continuous round ingot casting dummy ingot head |
-
1989
- 1989-05-12 JP JP11975489A patent/JPH02299756A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246991A (en) * | 2018-01-26 | 2018-07-06 | 龙岩学院 | A kind of semi-continuous casting device and method for inhibiting magnesium alloy ingot blank cracking |
| CN108246991B (en) * | 2018-01-26 | 2022-03-18 | 龙岩学院 | Semi-continuous casting device and method for inhibiting cracking of magnesium alloy ingot blank |
| CN111468691A (en) * | 2020-06-12 | 2020-07-31 | 无锡隆达金属材料有限公司 | Novel copper-nickel alloy semi-continuous round ingot casting dummy ingot head |
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