JPS6076263A - Production of composite metallic material - Google Patents
Production of composite metallic materialInfo
- Publication number
- JPS6076263A JPS6076263A JP18319083A JP18319083A JPS6076263A JP S6076263 A JPS6076263 A JP S6076263A JP 18319083 A JP18319083 A JP 18319083A JP 18319083 A JP18319083 A JP 18319083A JP S6076263 A JPS6076263 A JP S6076263A
- Authority
- JP
- Japan
- Prior art keywords
- composite
- molten steel
- steel
- molten metal
- pipe
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、異なる材質の２つの層をもつ板状やコイル
状の高品質の複合金属材を、遠心鋳造法によって生産性
高く且つ安価に製造することができる複合金属材の製造
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a composite metal material that can produce high-quality composite metal materials in the form of plates or coils having two layers of different materials with high productivity and at low cost using a centrifugal casting method. The invention relates to a method for manufacturing materials.
異なる材質の２つの層をもつ複合金属材の製造方法とし
ては、一般に爆着法および肉盛シ法のような直接クラッ
ド法、および、前記直接クラッド法と熱間圧延とを組合
わせた圧延クラッド法などが知られており、その方法は
ＪＩＳによっても規定されている。しかしながら、これ
らの方法は、複雑且つ特殊な工程を必要とするため、生
産性が低く、製造コストが高い問題がある。Manufacturing methods for composite metal materials having two layers of different materials generally include direct cladding methods such as explosion bonding and overlaying methods, and rolled cladding which is a combination of the direct cladding method and hot rolling. The method is also prescribed by JIS. However, these methods require complicated and special steps, resulting in low productivity and high manufacturing costs.
一方、異なる材質の外層と内層とからなる複合金属管を
遠心鋳造法によって製造する方法が、例えば特公昭４５
−２８７０７号などによって開示されている。この方法
は、軸線を中心として一定速度で回転している円筒状の
水平鋳型内に、所定の材質の第１の＠融金属を供給して
遠心鋳造し、次いで、前記遠心鋳造中の第１の溶融金属
の温度が凝固点以下５０〜２５０℃になったときに、前
記第１の溶融金属とは異なる材質の第２の溶融金属を、
前記遠心鋳造中の第１．の溶融金属の表面上に供給して
遠心鋳造することによって、複合金属管を製造すること
からなっている。しかし外から、上述した方法は、外層
と内層との界面の冶金的結合が必ずしも十分ではなく、
また板状やコイル状の複合金属材を製造するものではな
い。On the other hand, a method of manufacturing a composite metal tube consisting of an outer layer and an inner layer made of different materials by centrifugal casting is known, for example.
-28707, etc. This method involves centrifugally casting a first molten metal of a predetermined material into a cylindrical horizontal mold rotating at a constant speed around its axis, and then centrifugally casting the first molten metal. When the temperature of the molten metal becomes 50 to 250°C below the freezing point, a second molten metal of a different material from the first molten metal,
The first step during the centrifugal casting. The method consists of producing a composite metal tube by centrifugally casting the molten metal onto the surface of the tube. However, from the outside, the above method does not necessarily have a sufficient metallurgical bond at the interface between the outer layer and the inner layer.
Furthermore, it does not manufacture plate-shaped or coil-shaped composite metal materials.
この発明は、上述のような観点から、異゛なる材質の２
つの層をもち、２つの層の界面が冶金的に完全に結合さ
れた、板状やコイル状の高品質の複合金属材を、遠心鋳
造法によって生産性高く安価に製造し得る複合金属材の
製造方法を提供するもので、軸線を中心として一定速度
で回転している円筒状の水平鋳型内に、所定の材質の第
１の溶融金属を供給して遠心鋳造し、次いで、前記第１
の溶融金属の表面の凝固が始まってから、前記凝固が終
る寸での間に、前記遠心鋳造中の第１の溶融金属の表面
上に、その温度が過熱度で３０から１２０℃の範囲内で
あって、且つ、前記第１の溶融金属の融点よりも３０℃
以上高温である、前記第１の溶融金属とは異なる材質の
第２の溶融金属を供給して遠心鋳造し、かくして、前記
第１の溶融金属からなる外層と前記第２の溶融金属から
なる内層とからなる複合金属管を遠心鋳造し、次いで、
前記複合金属管を、前記水平鋳型内で冷却し、Ａｒ３ま
たは８００℃以上で、１１００℃以下の範囲内の温度で
前記水平鋳型から取り出し、次いで、前記水平鋳型から
取シ出された複合金属管を、その軸線方向における少な
くとも１本の直線に沿って切断し、次いで、前記切断さ
れた複合金属管を所定温度に加熱した後、熱間矯正機に
通して平板状の複合スラブを調製し、次いで、前記複合
スラブを熱間圧延機に通して圧延し、かくして、所定形
状の複合金属材を製造することに特徴を有するものであ
る。From the above-mentioned viewpoint, the present invention provides two materials made of different materials.
A high-quality composite metal material in the form of a plate or coil, which has two layers and the interfaces between the two layers are completely metallurgically bonded, can be produced with high productivity and at low cost using the centrifugal casting method. The method provides a manufacturing method in which a first molten metal of a predetermined material is centrifugally cast by supplying a first molten metal of a predetermined material into a cylindrical horizontal mold rotating at a constant speed around an axis, and then centrifugally casting the first molten metal.
After the solidification of the surface of the first molten metal begins and when the solidification is about to end, the temperature of the first molten metal during centrifugal casting is within the range of 30 to 120° C. and 30°C higher than the melting point of the first molten metal.
A second molten metal of a material different from the first molten metal is supplied and centrifugally cast, and the outer layer is made of the first molten metal and the inner layer is made of the second molten metal. A composite metal tube consisting of is centrifugally cast, and then
The composite metal pipe is cooled in the horizontal mold and taken out from the horizontal mold at a temperature in the range of Ar3 or 800°C or higher and 1100°C or lower, and then the composite metal pipe taken out from the horizontal mold. is cut along at least one straight line in its axial direction, and then the cut composite metal tube is heated to a predetermined temperature and then passed through a hot straightening machine to prepare a flat composite slab, The method is characterized in that the composite slab is then passed through a hot rolling mill and rolled, thereby producing a composite metal material having a predetermined shape.
次に、この発明の方法を、異なる材質の２つの層をもつ
複合銅版を製造する場合について、図面−を参照しなが
ら説明する。Next, the method of the present invention will be described with reference to the drawings for the case of manufacturing a composite copper plate having two layers of different materials.
第１図は、この発明の方法を実施するだめの製造装置の
一実施態様を示す概略断面図である。第１図において、
遠心鋳造用の円筒状の水平鋳型１は、所定間隔を設けて
配置された少くとも２箇の駆動ローラ２によって、その
軸線を中心として回転可能に支持されている。水平鋳型
１の両端は側壁３，４によって閉塞されており、側壁３
，４の中心には溶鋼注入口５．６が設けられている。７
は水平鋳型１の一端付近に設けられた第１タンデイツシ
ユ、８は水平鋳型１の他端付近に設ｉられた、第２タン
デイツシユである。第１タンデイツシユ７および第２タ
ンデイツシユ８の各々に設けられた溶鋼流出樋７ａ、８
ａの先端は、側壁３．４の溶鋼注入口５，６内に挿入さ
れている。９は第１タンデイツシユ７に第１の溶鋼を供
給するだめの第１取鍋、１０は第２タンデイツシユ８に
第２の溶鋼を供給するだめの第２取鍋である。FIG. 1 is a schematic cross-sectional view showing one embodiment of a container manufacturing apparatus for carrying out the method of the present invention. In Figure 1,
A cylindrical horizontal mold 1 for centrifugal casting is rotatably supported about its axis by at least two drive rollers 2 arranged at a predetermined interval. Both ends of the horizontal mold 1 are closed by side walls 3 and 4.
, 4 is provided with a molten steel injection port 5.6. 7
8 is a first tundish installed near one end of the horizontal mold 1, and 8 is a second tundish installed near the other end of the horizontal mold 1. Molten steel outflow gutter 7a, 8 provided in each of the first tundish 7 and second tundish 8
The tip of a is inserted into the molten steel inlet 5, 6 of the side wall 3.4. 9 is a first ladle for supplying the first molten steel to the first tundish 7, and 10 is a second ladle for supplying the second molten steel to the second tundish 8.
水平鋳型１を、５００〜１０００ ｒ、ｐ、ｍの高速で
回転させ、第１取鍋９から第１タンデイツシユ７内に供
給された所定の材質の第１の溶鋼１１を、第１タンデイ
ツシユ７の溶鋼流出樋７ａから、水平鋳型１内に供給す
る。The horizontal mold 1 is rotated at a high speed of 500 to 1000 r, p, m, and the first molten steel 11 of a predetermined material supplied from the first ladle 9 into the first tundish 7 is poured into the first tundish 7. Molten steel is supplied into the horizontal mold 1 from the outflow gutter 7a.
水平鋳型１内に供給された第１の溶鋼１１は、水平鋳型
１０回転によって遠心鋳造され、水平鋳型１の内面にほ
ぼ均一の厚さで付着して管状となり、そして、水平鋳型
１によって直ちに冷却され、水平鋳ｍ１の内面に接する
面から表面に向けて次第に凝固する。The first molten steel 11 supplied into the horizontal mold 1 is centrifugally cast by rotating the horizontal mold 10 times, adheres to the inner surface of the horizontal mold 1 with a substantially uniform thickness, becomes tubular, and is immediately cooled by the horizontal mold 1. and gradually solidifies from the surface in contact with the inner surface of horizontal casting m1 toward the surface.
ように、第２取鍋１０から第２タンデイツシユ８内に供
給された、前記第１の溶鋼１１とは材質が異なる第２の
溶鋼１２を、第２タンデイツシユ８の溶鋼流出樋８ａか
ら、水平鋳型１内の遠心鋳造中の第１の溶鋼１１の表面
上に供給して遠心鋳造する。The second molten steel 12, which is different in material from the first molten steel 11 and which is supplied from the second ladle 10 into the second tundish 8, is transferred from the molten steel outflow gutter 8a of the second tundish 8 to the horizontal mold. The first molten steel 11 is supplied onto the surface of the first molten steel 11 during centrifugal casting in 1, and centrifugal casting is performed.
第１の溶鋼１１の表面上への第２の溶鋼１２の供給温度
は、過熱度△Ｔ（溶鋼温度一液相線温度）で３０から１
２０℃の範囲内であって、且つ、第１の溶鋼１１の融点
（液相線温度）よりも、３０℃以上高いことが必要であ
る。The temperature at which the second molten steel 12 is supplied onto the surface of the first molten steel 11 is from 30 to 1 with a superheat degree ΔT (molten steel temperature - liquidus temperature).
It needs to be within the range of 20°C and higher than the melting point (liquidus temperature) of the first molten steel 11 by 30°C or more.
即ち、第２の溶鋼１２の供給温度を、過熱度△Ｔで３０
から１２０℃の範囲内とすることによって、水平鋳型１
内に供給された第２の溶鋼１２は、直ちに凝固シェルを
生成することがなく、凝固しつつある第１の溶鋼１１と
前記第２の溶鋼１２との界面は、一定時間溶融状態に維
持される。そして、第２の溶鋼１２の供給温度を、第１
の溶鋼１１の融点よりも３０℃以上高くすることによっ
て、半汀融状態にある第１の溶鋼１１の表面は、第２の
溶鋼１２の熱によって再び溶解する。その結果、第１の
溶鋼１１と第２の溶鋼１２との界面は浴融状態になる。That is, the supply temperature of the second molten steel 12 is set at a superheat degree ΔT of 30
to 120°C, the horizontal mold 1
The second molten steel 12 supplied into the molten steel does not immediately generate a solidified shell, and the interface between the first molten steel 11 that is solidifying and the second molten steel 12 is maintained in a molten state for a certain period of time. Ru. Then, the supply temperature of the second molten steel 12 is changed to the first temperature.
By raising the melting point of the first molten steel 11 to 30° C. or more higher than the melting point of the second molten steel 11, the surface of the first molten steel 11, which is in a semi-molten state, is melted again by the heat of the second molten steel 12. As a result, the interface between the first molten steel 11 and the second molten steel 12 becomes a bath molten state.
上述したように、界面が溶融状態になった第１の溶鋼１
１と第２の溶鋼１２は、水平鋳型１内において冷却され
て次第に凝固が進行し、両者間の界面は完全に浴着する
。かくして、水平鋳型１内において、第１の溶鋼１１か
らなる外層と第２の溶鋼１２からなる内層とからなる、
厚みおよび厚み比のばらつきが極めて少ない複合鋼管が
遠心鋳造される。第３図は、遠心鋳造された複合鋼管１
３の断面図で、１３ａは第１の溶鋼１１からなる外層、
１３ｂは第２の溶鋼１２からなる内層である。As described above, the first molten steel 1 whose interface is in a molten state
The first and second molten steel 12 are cooled in the horizontal mold 1 and gradually solidify, and the interface between them is completely bathed. Thus, within the horizontal mold 1, the outer layer consists of the first molten steel 11 and the inner layer consists of the second molten steel 12.
Composite steel pipes with extremely small variations in thickness and thickness ratio are centrifugally cast. Figure 3 shows centrifugally cast composite steel pipe 1.
3, 13a is an outer layer made of the first molten steel 11;
13b is an inner layer made of the second molten steel 12.
この複合鋼管１３を、水平鋳型１内において冷却し、そ
の温度がＡｒ３まだは８００℃以上で、１１００℃以下
の範囲になったときに、水平鋳型１内から取り出す。複
合鋼管１３の水平鋳型１内からの取シ出しは、水平鋳型
１の側壁３，４を取り外して、その端部から行なう。な
お、複合鋼管１３は、水平鋳型１内において自然冷却さ
れるので、その冷却は比較的緩慢に且つ温度差が生ずる
ことなく行々われる。なお、水平鋳型１を低速で回転さ
せながら複合鋼管１３の冷却を行なうことは、その冷却
を均一化する上において有効である。The composite steel pipe 13 is cooled in the horizontal mold 1 and taken out from the horizontal mold 1 when its temperature reaches a range of 800° C. or higher and 1100° C. or lower. The composite steel pipe 13 is taken out from within the horizontal mold 1 by removing the side walls 3 and 4 of the horizontal mold 1 and from the ends thereof. Note that, since the composite steel pipe 13 is naturally cooled within the horizontal mold 1, the cooling is performed relatively slowly and without any temperature difference. Note that cooling the composite steel pipe 13 while rotating the horizontal mold 1 at a low speed is effective in making the cooling uniform.
次に、水平鋳型１内から取り出された複合鋼管１３を、
第４図（ａ）に示すようにその軸線方向における１本の
直線１４、または、第４図（ｂ）に示すようにその軸線
方向における、所定間隔をあけた２本の直線１４ａ 、
１４ｂに沿って、トーチ式カス切断機等により切断す
る。Next, the composite steel pipe 13 taken out from inside the horizontal mold 1 is
One straight line 14 in the axial direction as shown in FIG. 4(a), or two straight lines 14a spaced apart by a predetermined distance in the axial direction as shown in FIG. 4(b),
Cut along the line 14b using a torch-type waste cutter or the like.
上記によシ切断された複合鋼管１３を、加熱炉に装入し
て、１１００〜１３００℃の温度に加熱し、次いで、熱
間矯正機によシ平板状に矯正することによって第５図に
示すような平板状の複合スラブ１５が調製される。次い
で、この複合スラブ１５を、熱間圧延機により熱間圧延
することによって、複合スラブ１５から板状またはコイ
ル状の複合鋼板が製造される。The composite steel pipe 13 cut in the above manner is charged into a heating furnace, heated to a temperature of 1100 to 1300°C, and then straightened into a flat plate shape by a hot straightening machine. A flat composite slab 15 as shown is prepared. Next, by hot rolling this composite slab 15 using a hot rolling mill, a plate-shaped or coil-shaped composite steel plate is manufactured from the composite slab 15.
この発明において、複合鋼管を調製する除における、水
平鋳型内に供給される第２の溶鋼の供給時期は、水平鋳
型内において遠心鋳造中の第１の溶鋼の表面の凝固が始
まってから、前記凝固の終るまでの間とすべきである。In this invention, the timing of supplying the second molten steel into the horizontal mold during preparation of the composite steel pipe is after the solidification of the surface of the first molten steel during centrifugal casting begins in the horizontal mold. This should be done until the end of coagulation.
即ち、第２の溶鋼の供給を、第１の溶鋼の表面の凝固が
始まる前の早い時期に行なうと、水平鋳型１内において
第１の溶鋼と第２の溶鋼とが混合し、または、第１の溶
鋼と第２の溶鋼との界面付近に、広い範囲にわたって組
成遷移領域が生ずる結果、複合鋼材として要求される材
質条件を満足させることができない。That is, if the second molten steel is supplied early before the surface of the first molten steel begins to solidify, the first molten steel and the second molten steel will mix in the horizontal mold 1, or As a result of a composition transition region occurring over a wide range near the interface between the first molten steel and the second molten steel, the material conditions required as a composite steel material cannot be satisfied.
一方、第２の溶鋼の供給を、第１の溶鋼の表面の凝固が
完了した後の遅い時期に行なうと、第１の溶鋼の凝固し
た表面が再溶解しにくくなるので、第１の溶鋼と第２の
溶鋼との溶着が不十分まだは不可能になり、更に、第１
の溶鋼の表面付近に、その凝固末期に発生したキャビテ
ィー、捷だは、介在物等の集積が、そのま１第１の溶鋼
と第２の溶銅との界面付近に取り残されるととなとによ
って、品質の優れた複合鋼材を得ることができない。On the other hand, if the second molten steel is supplied late after the solidification of the surface of the first molten steel is completed, the solidified surface of the first molten steel will be difficult to remelt. Welding with the second molten steel is insufficient and still impossible, and furthermore, the first
The accumulation of cavities, cracks, inclusions, etc. that occurred near the surface of the molten steel at the final stage of solidification will be left behind near the interface between the first molten steel and the second molten copper. Therefore, it is not possible to obtain composite steel materials of excellent quality.
遠心鋳造中の第１の溶鋼の表面上に供給する第２の溶鋼
の供給温度は、第灸の溶鋼の過熱度△Ｔで３０から１２
０℃の範囲内とすべきである。即ち、第２の溶鋼の供給
温度が、過熱度△Ｔで３０℃未満のときは、第２の溶鋼
は、水平鋳型内において直ちに凝固／エルを形成し、従
って、凝固しつつある第１の溶鋼との間の界面を溶融状
態にすることができない。また、第２の溶鋼の供給温度
が、過熱度△Ｔで１２０℃を超えると、凝固しつつある
第１の溶鋼を再溶解して両者が混合し、複合鋼材として
要求される材質条件を満足させることができない。The supply temperature of the second molten steel supplied onto the surface of the first molten steel during centrifugal casting is 30 to 12 at the superheat degree ΔT of the molten steel in the second moxibustion.
It should be within the range of 0°C. That is, when the supply temperature of the second molten steel is less than 30°C at the superheat degree ΔT, the second molten steel immediately solidifies/forms an ell in the horizontal mold, and thus the solidifying first molten steel The interface with molten steel cannot be brought into a molten state. In addition, when the supply temperature of the second molten steel exceeds 120°C at the superheating degree ΔT, the solidifying first molten steel is remelted and the two are mixed, satisfying the material conditions required as a composite steel material. I can't do it.
更に、上記第２の溶鋼の供給温度は、第１の溶鍋の融点
よりも３０℃以上高い温度にすべきである。即ち、第２
の溶鋼の供給温度が、第１の溶鋼の融点よりも３０℃未
満高い温度では、半溶融状態にある第１の溶鋼の表面を
再溶解さぜることかできない。Furthermore, the supply temperature of the second molten steel should be 30° C. or more higher than the melting point of the first molten steel. That is, the second
If the supply temperature of the molten steel is less than 30° C. higher than the melting point of the first molten steel, the surface of the first molten steel in a semi-molten state cannot be remelted.
水平鋳型内において遠心鋳造された複合鋼管を水平的型
から取り出すときの前記複合鋼管の温度は、Ａｒ３″！
、たけ８００℃以上で、１１００℃以下の範囲内にすべ
きである。即ち、複合鋼管の水平鋳型からの取り出し温
度がＡｒ３または８０’０ ℃未満であるときは、水平
鋳型から複合鋼管を取り出すときに、材質的な変態にょ
る脆化の影響を受けて、複合鋼管に表面割れ等の生ずる
おそれがある。The temperature of the composite steel pipe centrifugally cast in a horizontal mold when it is taken out from the horizontal mold is Ar3''!
The temperature should be within the range of 800°C or higher and 1100°C or lower. In other words, when the temperature at which the composite steel pipe is taken out from the horizontal mold is less than Ar3 or 80'0°C, when the composite steel pipe is taken out from the horizontal mold, the composite steel pipe is affected by embrittlement due to material transformation. There is a risk of surface cracking, etc.
一方、前記取シ出し温度が１１００℃を超えると、水平
鋳型内において複合鋼管が十分に収縮していないから、
前記水平鋳型の内面と複合鋼管との間の隙間が少なく、
水平鋳型からの複合鋼管の取り出しが困難となる。On the other hand, if the ejecting temperature exceeds 1100°C, the composite steel pipe will not shrink sufficiently in the horizontal mold.
The gap between the inner surface of the horizontal mold and the composite steel pipe is small;
It becomes difficult to remove the composite steel pipe from the horizontal mold.
この発明の方法によれば、例えば、ステンレス鋼と一般
炭素鋼、Ｃｒ Ｍｏ鋼とステンレス鋼等、目的、用途に
応じてあらゆる材質の鋼を組合わせた、品質の優れた複
合鋼材、牛の他各種の複合金属材を製造することができ
る。According to the method of this invention, for example, composite steel materials of excellent quality, which are made by combining various steel materials depending on the purpose and use, such as stainless steel and general carbon steel, Cr Mo steel and stainless steel, etc. Various composite metal materials can be manufactured.
以上述べたように、この発明の方法によれば、冶金的に
完全に結合された密着性の優れた健全な界面を有する、
異なる材質の２つの層をもつ複合金属材を、遠心鋳造法
によって生産性高く安価に製造し得る工業上優れた効果
がもたらされる。As described above, according to the method of the present invention, the metallurgically bonded interface has a sound interface with excellent adhesion.
A composite metal material having two layers of different materials can be produced with high productivity and at low cost by centrifugal casting, which brings about an excellent industrial effect.
第１図および第２図はこの発明の方法を実施するだめの
製造装置の一実施態様を示す概略縦断面図で、第１図は
第１の溶鋼が供給されている状態を、まだ第２図は第２
の溶鋼が供給されている状態を示している。第３図はこ
の発明の方法におけ。
る中間製品である複合鋼管の断面図、第４図（ａ） （
ｂ）は複合鋼管の切断線を示す説明図、第５図はこの発
明の方法における中間製品である複合スラブの斜視図で
ある。図面において、
１・・・水平ｐｊ型、 ２・・・駆動ローラ、３．４・
・・側壁、 ５，６・・溶鋼注入口、７・・・第１タン
デイツシユ、
８・・・第２タンテイツシユ、
９・・第１取鍋、 １０・・第２取鍋、１１・・・第１
の溶鋼、 １２・・・第２の溶鋼、１３・・・複合鋼管
、 １４・・・直線、１５・・・複合スラブ。
出願人 日本鋼管株式会社
代理人 潮 谷 奈津夫（他２名）1 and 2 are schematic longitudinal sectional views showing an embodiment of a pot manufacturing apparatus for carrying out the method of the present invention, and FIG. 1 shows a state in which the first molten steel is being supplied, and the second molten steel The figure is the second
The figure shows the state in which molten steel is being supplied. FIG. 3 shows the method of this invention. Figure 4(a) is a cross-sectional view of a composite steel pipe that is an intermediate product.
b) is an explanatory diagram showing cutting lines of a composite steel pipe, and FIG. 5 is a perspective view of a composite slab which is an intermediate product in the method of the present invention. In the drawings, 1... horizontal pj type, 2... drive roller, 3.4...
...Side wall, 5, 6... Molten steel inlet, 7... First tundish, 8... Second tundish, 9... First ladle, 10... Second ladle, 11... No. 1
12... Second molten steel, 13... Composite steel pipe, 14... Straight line, 15... Composite slab. Applicant Nippon Kokan Co., Ltd. Agent Natsuo Shioya (and 2 others)
Claims (1)
鋳型内に、所定の材質の第１の溶融金属を供給して遠心
鋳造し、次いで、前記類１の溶融金属の表面の凝固が始
まってから、前記凝固が終るまでの間に、前記遠心鋳造
中の第１の溶融金属の表面上に、その温度が過熱度で３
０から１２０℃の範囲内であって、且つ、前記第１の浴
融金属の融点よりも３０℃以上高温である、前記第１の
浴融金属とは異なる材質の第２の溶融金属を供給して遠
心鋳造し、かくして、前記第１の浴融金属からなる外層
と前記第２の溶融金属からなる内層とからなる複合金属
管を遠心鋳造し、 次いで、前記複合金属管を、前記水平鋳゛髭内で冷却し
、Ａｒ−３または８００℃以上で、１１００℃以下の範
囲内の温度で前記水平鋳型から取り出し、次いで、前記
水平鋳型から取り出された複合金属管を、その軸線方向
における少なくとも１本の直線に沿って切断し、次いで
、前記切断された複合金属管を所定温度に加熱した後、
熱間矯正機に通して平板状の複合スラブを調製し、次い
で、前記複合スラブを熱間圧延機に通して圧延し、かく
して、所定形状の複合金属材を製造することを特徴とす
る複合金属材の製造方法。[Scope of Claims] A first molten metal of a predetermined material is supplied into a cylindrical horizontal mold rotating at a constant speed about an axis, centrifugally cast, and then the molten metal of the above-mentioned Category 1 is During the period from when the surface of the first molten metal begins to solidify to when the solidification ends, the surface of the first molten metal during the centrifugal casting is heated to a temperature of 3.
Supplying a second molten metal of a material different from the first bath molten metal, which is within the range of 0 to 120°C and is 30°C or more higher than the melting point of the first bath molten metal. In this way, a composite metal tube consisting of an outer layer made of the first bath molten metal and an inner layer made of the second molten metal is centrifugally cast, and then the composite metal tube is cast in the horizontal casting method. ``The composite metal tube is cooled in a whisker and taken out from the horizontal mold at a temperature in the range of Ar-3 or above 800°C and below 1100°C, and then the composite metal tube taken out from the horizontal mold is After cutting along one straight line and then heating the cut composite metal tube to a predetermined temperature,
A composite metal comprising preparing a flat composite slab by passing it through a hot straightening machine, and then rolling the composite slab by passing it through a hot rolling machine, thus producing a composite metal material having a predetermined shape. Method of manufacturing wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18319083A JPS6076263A (en) | 1983-10-03 | 1983-10-03 | Production of composite metallic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18319083A JPS6076263A (en) | 1983-10-03 | 1983-10-03 | Production of composite metallic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6076263A true JPS6076263A (en) | 1985-04-30 |
Family
ID=16131342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18319083A Pending JPS6076263A (en) | 1983-10-03 | 1983-10-03 | Production of composite metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6076263A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169847A (en) * | 1988-12-23 | 1990-06-29 | Atsugi Unisia Corp | Casting of piston |
| EP0828576A1 (en) * | 1995-05-26 | 1998-03-18 | Erim Company | Method of casting a multilayered alloy tube |
| FR2928282A1 (en) * | 2008-03-05 | 2009-09-11 | Cmw Const Mecaniques Des Vosge | PROCESS FOR PRODUCING PLATES OF METAL, ALONE OR IN HOMOGENEOUS ALLOYS, BY CENTRIFUGATION |
| CN102294456A (en) * | 2011-08-16 | 2011-12-28 | 新兴铸管股份有限公司 | Manufacturing method for oblique rolling of bimetallic compound seamless steel pipe by centrifugal blank |
| CN102310184A (en) * | 2011-09-27 | 2012-01-11 | 新兴铸管股份有限公司 | Manufacturing method of wear-resistant composite steel plate and manufactured composite steel plate |
| CN102489531A (en) * | 2011-12-19 | 2012-06-13 | 昆明理工大学 | Method for preparing laminated composite metal material through semi-solid rolling after centrifugal compositing |
| CN102581248A (en) * | 2012-02-29 | 2012-07-18 | 重庆宗学重工机械股份有限公司 | Split type bearing bush centrifugal casting method |
| CN112296606A (en) * | 2020-10-22 | 2021-02-02 | 东北大学 | Preparation method of vacuum centrifugal TiAl intermetallic compound plate |
-
1983
- 1983-10-03 JP JP18319083A patent/JPS6076263A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169847A (en) * | 1988-12-23 | 1990-06-29 | Atsugi Unisia Corp | Casting of piston |
| EP0828576A1 (en) * | 1995-05-26 | 1998-03-18 | Erim Company | Method of casting a multilayered alloy tube |
| EP0828576A4 (en) * | 1995-05-26 | 1998-04-22 | ||
| FR2928282A1 (en) * | 2008-03-05 | 2009-09-11 | Cmw Const Mecaniques Des Vosge | PROCESS FOR PRODUCING PLATES OF METAL, ALONE OR IN HOMOGENEOUS ALLOYS, BY CENTRIFUGATION |
| WO2009112725A1 (en) * | 2008-03-05 | 2009-09-17 | Cmw - Constructions Mecaniques Des Vosges Marioni (Cmw) | Method for making metal plates, alone or in the form of a homogenous alloy, by centrifuging |
| CN102294456A (en) * | 2011-08-16 | 2011-12-28 | 新兴铸管股份有限公司 | Manufacturing method for oblique rolling of bimetallic compound seamless steel pipe by centrifugal blank |
| CN102310184A (en) * | 2011-09-27 | 2012-01-11 | 新兴铸管股份有限公司 | Manufacturing method of wear-resistant composite steel plate and manufactured composite steel plate |
| CN102489531A (en) * | 2011-12-19 | 2012-06-13 | 昆明理工大学 | Method for preparing laminated composite metal material through semi-solid rolling after centrifugal compositing |
| CN102581248A (en) * | 2012-02-29 | 2012-07-18 | 重庆宗学重工机械股份有限公司 | Split type bearing bush centrifugal casting method |
| CN112296606A (en) * | 2020-10-22 | 2021-02-02 | 东北大学 | Preparation method of vacuum centrifugal TiAl intermetallic compound plate |
| CN112296606B (en) * | 2020-10-22 | 2022-01-18 | 东北大学 | Preparation method of vacuum centrifugal TiAl intermetallic compound plate |
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