JP2017532202A - Continuous caster fan-shaped segment with high-pressure reduction at the solidified end of continuous cast slab and its high-pressure reduction method - Google Patents
Continuous caster fan-shaped segment with high-pressure reduction at the solidified end of continuous cast slab and its high-pressure reduction method Download PDFInfo
- Publication number
- JP2017532202A JP2017532202A JP2017501264A JP2017501264A JP2017532202A JP 2017532202 A JP2017532202 A JP 2017532202A JP 2017501264 A JP2017501264 A JP 2017501264A JP 2017501264 A JP2017501264 A JP 2017501264A JP 2017532202 A JP2017532202 A JP 2017532202A
- Authority
- JP
- Japan
- Prior art keywords
- driven roller
- reduction
- continuous casting
- slab
- roller group
- 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
- 230000009467 reduction Effects 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009749 continuous casting Methods 0.000 claims abstract description 41
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007711 solidification Methods 0.000 claims description 12
- 230000008023 solidification Effects 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 14
- 238000005204 segregation Methods 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007790 solid phase Substances 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1284—Horizontal removing
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
Abstract
【課題】【解決手段】 本発明は、連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメント及びその高圧圧下方法を提供し、前記連続鋳造機扇状セグメントが扇状セグメントに位置する上枠、下枠、上駆動ローラー、下駆動ローラー、左従動ローラー群、右従動ローラー群、圧下装置及びクランプシリンダを含み、クランプシリンダが上枠と下枠をクランプして設定された間隔を維持することに用いられ、上駆動ローラーが圧下装置に接続され、上駆動ローラーがベアリング台座を介して上枠に接続され、下駆動ローラーがベアリング台座を介して下枠に接続され、左従動ローラー群及び右従動ローラー群がそれぞれ駆動ローラーの両側に位置し、左従動ローラー群が圧下前の鋳造スラブをクランプすることに用いられ、右従動ローラー群が圧下後の鋳造スラブをクランプすることに用いられ、駆動ローラーの直径と従動ローラーの直径との比が１．１：１〜２：１である。本発明の変形透過性が増加して大きいローラー径の二段式圧延機の一つの圧延パスの変形に相当し、さらに連続鋳造スラブの中心領域の緩み、偏析の改善に役立つ。【選択図】図１The present invention provides a continuous casting machine fan-shaped segment in which a solidified end of a continuous casting slab is high-pressure reduced and a method for high-pressure reduction thereof, wherein the continuous casting machine fan-shaped segment is located in a fan-shaped segment, an upper frame, a lower frame Including frame, upper drive roller, lower drive roller, left driven roller group, right driven roller group, reduction device and clamp cylinder, clamp cylinder clamps upper frame and lower frame to maintain the set interval The upper drive roller is connected to the reduction device, the upper drive roller is connected to the upper frame via the bearing pedestal, the lower drive roller is connected to the lower frame via the bearing pedestal, the left driven roller group and the right driven roller Each group is located on both sides of the driving roller, and the left driven roller group is used to clamp the cast slab before rolling, the right driven roller The group is used to clamp the cast slab after the reduction, and the ratio of the driving roller diameter to the driven roller diameter is 1.1: 1 to 2: 1. The deformation permeability of the present invention is increased, which corresponds to deformation of one rolling pass of a two-stage rolling mill having a large roller diameter, and further helps to improve the loosening and segregation of the central region of the continuous cast slab. [Selection] Figure 1
Description
本発明は、スラブ鋳造技術分野に関し、特に連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメント及びその高圧圧下方法である。 The present invention relates to the technical field of slab casting, and in particular, relates to a continuous casting machine fan-shaped segment in which a solidified end of a continuous casting slab is high-pressure reduced and a high-pressure reduction method thereof.
連続鋳造スラブ凝固端高圧圧下技術は、連続鋳造生産ラインに連続鋳造スラブに圧下ローラーを設置し、鋳造スラブ中心部の固相率が８０％以上に達すると、鋳造スラブに高圧圧下変形（５〜２０ｍｍ）を印加し、その後正常な圧延生産を行うことである。該技術により連続鋳造スラブの中心部品質を大幅に向上でき（マクロ構造、収縮、緩み、偏析などを改善する）、低い圧縮比（１．５〜２．５）で高品質の厚さが１００ｍｍより大きい超厚板製品を製造することができる。
連続鋳造スラブ凝固端に高圧圧下を実施した場合、鋳造機扇状セグメントに対して全体高圧圧下を行うと、扇状セグメントの５〜７対の鋳造機ローラーが同時に鋳造スラブに接触する場合の接触面積が大幅に増加し、それによって負荷も大幅に増大するので、扇状セグメントの強度及び剛性を大幅に増加しなければ扇状セグメント及びセグメントローラー（又は鋳造機ローラー）への強力な負荷及び大きな弾性変形に抵抗できず、セグメントローラーがローラーリング、芯軸及び中間支持ベアリング台座で構成されるので、扇状セグメントのサイズ及び重量が大幅に増加し、これにより扇状セグメントの吊り上げ及びメンテナンスなどの一連の新しい問題をもたらし、かつ高圧圧下が連続鋳造スラブ凝固端の近傍に実施され、扇状セグメントを高圧圧下する複数対のローラー、小変形低圧圧下によって発生した変形（歪み）透過性が悪く、鋳造スラブ中心部領域に伝達された歪みが小さいので、中心部領域の緩み及び偏析欠陥をより良く改善するのに役立たない。
そのため、直接元の連続鋳造機の低圧圧下システムで扇状セグメントに凝固端高圧圧下を実施すると、連続鋳造機の扇状セグメント、駆動ローラーの強度及び鋼性が深刻に不足し、及びクランプシリンダの担持能力が十分ではなく、凝固端高圧圧下を実施しにくく、かつ連続鋳造スラブの中間に亀裂が容易にできるなどの問題が発生する。
Continuous casting slab solidification end high-pressure reduction technology installs a reduction roller in the continuous casting slab in the continuous casting production line, and when the solid phase rate in the center of the casting slab reaches 80% or more, high-pressure reduction deformation (5-5 20 mm) is applied, and then normal rolling production is performed. This technology can greatly improve the quality of the center of continuous cast slabs (improves macro structure, shrinkage, loosening, segregation, etc.), and has a high compression thickness (1.5-2.5) and high quality thickness of 100mm. Larger ultra-thick product can be produced.
When high pressure reduction is performed at the solidified end of the continuous casting slab, when the entire high pressure reduction is performed on the casting machine fan-shaped segment, the contact area when 5-7 pairs of casting machine rollers of the fan-shaped segment simultaneously contact the casting slab is Significantly increases the load and therefore also the load, so it can resist strong loads and large elastic deformations on the fan segments and segment rollers (or caster rollers) without significantly increasing the strength and stiffness of the fan segments No, the segment roller is composed of roller ring, core shaft and intermediate support bearing pedestal, which greatly increases the size and weight of the fan segment, which leads to a series of new problems such as lifting and maintenance of the fan segment , And high pressure reduction is performed in the vicinity of the solidified end of the continuous cast slab, Multiple pairs of rollers under high pressure, low deformation (strain) permeability caused by low deformation and low deformation, low strain transmitted to the central area of the casting slab, and better improvement of looseness and segregation defects in the central area Useless to do.
Therefore, if the solid-state high pressure reduction is performed on the fan-shaped segment directly in the original low-pressure reduction system of the continuous casting machine, the strength and steel properties of the continuous casting machine fan-shaped segment, drive roller are seriously insufficient, and the holding capacity of the clamp cylinder However, there is a problem in that it is difficult to perform high-pressure reduction at the solidification end and cracks can be easily formed in the middle of the continuous cast slab.
本発明が解決しようとする技術的問題は連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメント及びその高圧圧下方法を提供し、従来技術において元の連続鋳造機システムを用いて扇状セグメントに凝固端高圧圧下を実施すると、連続鋳造機の扇状セグメント、駆動ローラーの強度及び鋼性が深刻に不足であり、及びクランプシリンダの担持能力が十分ではなく、凝固端高圧圧下を実施しにくく、かつ鋳造スラブの中間に亀裂が容易にできるなどの問題を解決することである。 The technical problem to be solved by the present invention is to provide a continuous caster fan segment with high pressure reduction at the solidified end of the continuous casting slab and its high pressure reduction method, and solidify the fan segment using the original continuous caster system in the prior art. When end high-pressure reduction is performed, the fan-shaped segment of the continuous casting machine, the strength and steel properties of the driving roller are seriously insufficient, and the holding capacity of the clamp cylinder is not sufficient, and it is difficult to perform the solidification end high-pressure reduction and casting. It is to solve problems such as easy cracking in the middle of the slab.
上記の技術的問題を解決するために、本発明の実施例による連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメントは、連続鋳造機扇状セグメントに位置する上枠、下枠、上駆動ローラー、下駆動ローラー、左従動ローラー群、右従動ローラー群、圧下装置及びクランプシリンダを含み、前記クランプシリンダが上枠と下枠をクランプして設定された間隔を維持することに用いられ、前記上駆動ローラーが圧下装置に接続され、前記上駆動ローラーが上ベアリング台座を介して上枠に接続され、前記下駆動ローラーが下ベアリング台座を介して下枠に接続され、前記左従動ローラー群及び前記右従動ローラー群がそれぞれ駆動ローラーの両側に位置し、前記左従動ローラー群が圧下前の鋳造スラブをクランプすることに用いられ、前記右従動ローラー群が圧下後の鋳造スラブをクランプすることに用いられ、前記駆動ローラーの直径と従動ローラーの直径との比が１．１：１〜２：１である。 In order to solve the above technical problem, a continuous casting machine fan-shaped segment in which a solidified end of a continuous casting slab according to an embodiment of the present invention is high-pressure-reduced includes an upper frame, a lower frame, and an upper drive roller located in the continuous casting machine fan-shaped segment. A lower drive roller, a left driven roller group, a right driven roller group, a reduction device and a clamp cylinder, wherein the clamp cylinder clamps the upper frame and the lower frame and is used to maintain a set interval, A driving roller is connected to a reduction device, the upper driving roller is connected to the upper frame via an upper bearing pedestal, the lower driving roller is connected to the lower frame via a lower bearing pedestal, the left driven roller group and the The right driven roller group is located on each side of the driving roller, and the left driven roller group is used to clamp the cast slab before the reduction, Right driven roller group is used to clamp the cast slab after rolling, the ratio of the diameters of the driven roller of the drive roller 1.1: 1 to 2: 1.
その内、前記右従動ローラー群と駆動ローラーの開度が圧下後の鋳造スラブ厚さと同じである。 Among them, the opening degree of the right driven roller group and the driving roller is the same as the cast slab thickness after the reduction.
その中、前記左従動ローラー群の開度が圧下前の鋳造スラブ厚さと同じである。 Among them, the opening degree of the left driven roller group is the same as the cast slab thickness before the reduction.
その中、前記駆動ローラーは一体型であり、一体成形プロセスによって製造される。
上記の技術的問題を解決するために、本発明による連続鋳造スラブ凝固端高圧圧下方法は、
（１）クランプシリンダは一定の圧力を上枠に印加し、左従動ローラー群の開度を圧下前の鋳造スラブ厚さと同じにし、そして圧下前の鋳造スラブをクランプすることに用いられるステップと、
（２）圧下量を５〜２０ｍｍに設定し、圧下装置によって駆動ローラーと連動して鋳造スラブに対して高圧圧下変形を行うステップと、
（３）右従動ローラー群を調整してその開度を上下駆動ローラーの間の間隔と同じにし、圧下後の鋳造スラブをクランプすることに用いられるステップとを含む。
Among them, the drive roller is an integral type and is manufactured by an integral molding process.
In order to solve the above technical problem, the continuous casting slab solidification end high-pressure reduction method according to the present invention is:
(1) The clamp cylinder applies a constant pressure to the upper frame, makes the opening of the left driven roller group the same as the cast slab thickness before reduction, and is used to clamp the cast slab before reduction;
(2) a step of setting the amount of reduction to 5 to 20 mm and performing high-pressure reduction deformation on the cast slab in conjunction with the drive roller by a reduction device;
(3) adjusting the right driven roller group so that the opening degree is the same as the interval between the upper and lower drive rollers, and the step used for clamping the cast slab after the reduction.
上記の解決手段では、本発明は大ローラー径一体型駆動ローラー及び高強度、高鋼性を有する上枠、下枠及び担持能力が大きいクランプシリンダを用いる。高圧圧下した場合の総変形量は、大ローラー径駆動ローラーによって連続鋳造スラブに対して高圧圧下変形を実施する総変形量であり、一般的な扇状セグメントの５〜７対の鋳造機ローラーが一つ一つ小変形を実施して高圧圧下を完了する総変形量ではない。 In the above solution, the present invention uses a large roller diameter integrated drive roller and an upper frame having a high strength and high steel property, a lower frame, and a clamp cylinder having a large carrying capacity. The total amount of deformation when high-pressure reduction is performed is a total amount of deformation in which high-pressure reduction deformation is performed on a continuous cast slab by a large roller diameter driving roller. It is not the total amount of deformation that completes high pressure reduction by performing small deformations one by one.
本発明の上記の技術的解決手段の有益な効果は以下の通りである。 The beneficial effects of the above technical solution of the present invention are as follows.
１．塑性変形接触面積が減少し、大ローラー径一体型駆動ローラーのみによって圧下され、総変形量が大幅に減少する；
２．それに応じて扇状セグメントにおけるクランプシリンダの必要なクランプ力が小さくなり、同時に上、下扇状セグメントの高圧圧下された場合の強度と鋼性を維持するために増加する必要がある構造材料及び重量が減少する；
３．変形透過性が増加して大ローラー径の二段式圧延機の一つの圧延パスの変形に相当し、さらに連続鋳造スラブの中心領域の緩み、偏析の改善に役立つ。
1. The plastic deformation contact area is reduced, and it is squeezed only by the large roller diameter integrated drive roller, and the total deformation amount is greatly reduced;
2. Correspondingly, the required clamping force of the clamping cylinder in the fan segments is reduced, and at the same time the structural material and weight that need to be increased to maintain the strength and steel properties when the upper and lower fan segments are high pressure reduced. Do;
3. The deformation permeability increases, which corresponds to the deformation of one rolling pass of a two-roll mill with a large roller diameter, and further helps to improve the loosening and segregation of the central region of the continuously cast slab.
本発明が解決しようとする技術的問題、技術的解決手段と利点をより明らかにするために、以下に図面及び具体的な実施例を参照して詳しく説明する。 In order to clarify the technical problems, technical solutions and advantages to be solved by the present invention, the following detailed description is made with reference to the drawings and specific embodiments.
本発明は従来技術において元の連続鋳造機の低圧圧下システムで扇状セグメントに凝固端高圧圧下を実施する場合、連続鋳造機の扇状セグメント、駆動ローラーの強度及び鋼性が深刻に不足であり、及びクランプシリンダの担持能力が十分ではなく、凝固端高圧圧下を実施しにくく、かつ鋳造スラブの中間に亀裂が容易にできるなどの問題に対して、連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメントおよびその高圧圧下方法を提供する。
図１と図２に示すように、本発明の実施例による連続鋳造スラブ凝固端を高圧圧下した連続鋳造機扇状セグメントは、連続鋳造機扇状セグメントに位置する上枠２、下枠７、上駆動ローラー３、下駆動ローラー５、左従動ローラー群８、右従動ローラー群９、圧下装置１及びクランプシリンダ１０を含み、前記クランプシリンダ１０が上枠２と下枠７をクランプして設定された間隔を維持することに用いられ、前記駆動ローラー、従動ローラーが伝動装置１１によって連動されて回転し、それによって鋳造スラブと連動して前へ移動し、前記上駆動ローラー３が圧下装置１に接続され、前記上駆動ローラー３が上ベアリング台座４を介して上枠２に接続され、前記下駆動ローラー５が下ベアリング台座６を介して下枠７に接続され、前記左従動ローラー群８及び右従動ローラー群９がそれぞれ駆動ローラーの両側に位置し、前記左従動ローラー群８が圧下前の鋳造スラブをクランプすることに用いられ、前記右従動ローラー群９が圧下後の鋳造スラブをクランプすることに用いられ、前記駆動ローラーの直径と従動ローラーの直径との比が１．１：１〜２：１である。
前記右従動ローラー群９と駆動ローラーの開度が圧下後の鋳造スラブ厚さと同じである。前記左従動ローラー群８の開度が圧下前の鋳造スラブ厚さと同じである。前記駆動ローラーは一体型であり、一体成形プロセスによって製造される。
図３に示すように、本発明による連続鋳造スラブ凝固端高圧圧下方法は、（１）クランプシリンダは一定の圧力を上枠２に印加し、左従動ローラー群８の開度を圧下前の鋳造スラブ厚さと同じにし、そして圧下前の鋳造スラブをクランプすることに用いられるステップと、
（２）圧下量を５〜２０ｍｍに設定し、圧下装置１によって駆動ローラーと連動して鋳造スラブに対して高圧圧下変形を行うステップと、
（３）右従動ローラー群９を調整してその開度を上下駆動ローラーの間の間隔と同じにし、圧下後の鋳造スラブをクランプすることに用いられる。このようにして大ローラー径一体型駆動ローラー３のみによって圧下変形を実施することを実現でき、出口側の右従動ローラー群９が圧下変形を負担せず、この圧下方式は、二段式圧延機の鋳造スラブに対する圧延変形に類似する。
In the prior art, when performing solid-state high pressure reduction on a fan-shaped segment in the conventional continuous casting machine low pressure reduction system, the continuous casting machine fan segment, the strength and steel properties of the driving roller are seriously insufficient, and Continuous casting machine fan shape with continuous casting slab solidification end under high pressure for problems such as insufficient holding capacity of clamp cylinder, difficult to carry out high pressure reduction at solidification end, and easy cracking in the middle of casting slab A segment and its high pressure reduction method are provided.
As shown in FIGS. 1 and 2, the continuous casting machine fan-shaped segment in which the solidified end of the continuous casting slab according to the embodiment of the present invention is high-pressure-reduced includes an upper frame 2, a lower frame 7 and an upper drive located in the continuous casting machine fan-shaped segment. The roller 3, the lower drive roller 5, the left driven roller group 8, the right driven roller group 9, the reduction device 1 and the clamp cylinder 10, the clamp cylinder 10 is set by clamping the upper frame 2 and the lower frame 7. The driving roller and the driven roller are rotated in conjunction with the transmission device 11, thereby moving forward in conjunction with the casting slab, and the upper driving roller 3 is connected to the reduction device 1. The upper drive roller 3 is connected to the upper frame 2 via the upper bearing pedestal 4, and the lower drive roller 5 is connected to the lower frame 7 via the lower bearing pedestal 6, and the left slave A roller group 8 and a right driven roller group 9 are positioned on both sides of the driving roller, respectively, and the left driven roller group 8 is used to clamp a cast slab before the reduction, and the right driven roller group 9 is a cast after the reduction. Used to clamp the slab, the ratio of the drive roller diameter to the driven roller diameter is 1.1: 1 to 2: 1.
The opening degree of the right driven roller group 9 and the driving roller is the same as the cast slab thickness after the reduction. The opening degree of the left driven roller group 8 is the same as the cast slab thickness before reduction. The drive roller is integral and is manufactured by an integral molding process.
As shown in FIG. 3, the continuous casting slab solidification end high pressure reduction method according to the present invention is as follows. (1) The clamp cylinder applies a constant pressure to the upper frame 2 and the opening of the left driven roller group 8 is reduced before the reduction. Steps used to clamp the cast slab to the same slab thickness and before rolling,
(2) a step of setting the amount of reduction to 5 to 20 mm, and performing high-pressure reduction deformation on the cast slab in conjunction with the drive roller by the reduction device 1;
(3) The right driven roller group 9 is adjusted so that the opening thereof is the same as the interval between the upper and lower drive rollers, and used to clamp the cast slab after the reduction. In this way, it is possible to realize the rolling deformation only by the large roller diameter integrated driving roller 3, and the right driven roller group 9 on the outlet side does not bear the rolling deformation. This rolling method is a two-stage rolling mill. Similar to rolling deformation for cast slabs.
本発明の駆動ローラーは大ローラー径一体型駆動ローラー（即ち、ローラーリング、芯軸及び中間支持ベアリング台座で構成されたセグメントローラーではない）であり、同時に高圧圧下が実施された場合の負荷が増加するのを考えて、扇状セグメントの上枠２と下枠７の強度と鋼性を向上させ（向上幅が２〜５倍である）、それに応じて４つのクランプシリンダ１０の担持能力を増大する（増大幅が２〜５倍である）。
上記の解決手段では、本発明は大ローラー径一体型駆動ローラー及び高強度、高鋼性を有する上枠、下枠及び担持能力が大きいクランプシリンダを用いる。高圧圧下した場合の総変形量は、大ローラー径の駆動ローラーによって連続鋳造スラブに対して高圧圧下変形を行う総変形量であり、一般的な扇状セグメントの５〜７対の鋳造機ローラーが一つ一つ小変形を実施して高圧圧下を完了する総変形量ではない。
本発明の上記の技術的解決手段の有益な効果は以下の通りである。
１．塑性変形接触面積が減少し、大ローラー径一体型駆動ローラーのみによって圧下され、総変形量が大幅に減少する；
２．それに応じて扇状セグメントにおけるクランプシリンダの必要なクランプ力が小さくなり、同時に上、下扇状セグメントの高圧圧下された場合の強度と鋼性を維持するために増加する必要がある構造材料及び重量が減少する；
３．変形透過性が増加し、大ローラー径の二段式圧延機の一つの圧延パスの変形に相当し、このようにさらに連続鋳造スラブの中心領域の緩み、偏析の改善に役立つ。
上記のものは、本発明の好ましい実施形態であり、本技術分野の当業者に対して、本発明に記載される原理を逸脱しない前提で、若干の改良および変更を行うことができ、これらの改良および変更が本発明の保護範囲とみなされるべきであると指摘されるべきである。
The drive roller of the present invention is a large roller diameter integrated drive roller (that is, not a segment roller composed of a roller ring, a core shaft and an intermediate support bearing pedestal), and at the same time increases the load when high pressure reduction is performed In consideration of this, the strength and steel properties of the upper frame 2 and the lower frame 7 of the fan-shaped segment are improved (the improvement width is 2 to 5 times), and the carrying capacity of the four clamp cylinders 10 is increased accordingly. (Increase width is 2 to 5 times).
In the above solution, the present invention uses a large roller diameter integrated drive roller and an upper frame having a high strength and high steel property, a lower frame and a clamp cylinder having a large carrying capacity. The total deformation amount when high-pressure reduction is performed is a total deformation amount for performing high-pressure reduction deformation on a continuous casting slab by a driving roller having a large roller diameter. It is not the total amount of deformation that completes high pressure reduction by performing small deformations one by one.
The beneficial effects of the above technical solution of the present invention are as follows.
1. The plastic deformation contact area is reduced, and it is squeezed only by the large roller diameter integrated drive roller, and the total deformation amount is greatly reduced;
2. Correspondingly, the required clamping force of the clamping cylinder in the fan segments is reduced, and at the same time the structural material and weight that need to be increased to maintain the strength and steel properties when the upper and lower fan segments are high pressure reduced. Do;
3. The deformation permeability increases, which corresponds to the deformation of one rolling pass of a two-stage rolling mill with a large roller diameter, and thus helps to improve the loosening and segregation of the central region of the continuous cast slab.
The above is a preferred embodiment of the present invention, and slight improvements and modifications can be made to those skilled in the art without departing from the principles described in the present invention. It should be pointed out that improvements and modifications should be regarded as the protection scope of the present invention.
Claims (5)
（１）クランプシリンダは一定の圧力を上枠に印加し、左従動ローラー群の開度を圧下前の鋳造スラブ厚さと同じにし、そして圧下前の鋳造スラブをクランプすることに用いられるステップと、
（２）圧下量を５〜２０ｍｍに設定し、圧下装置によって駆動ローラーと連動して鋳造スラブに対して高圧圧下変形を行うステップと、
（３）右従動ローラー群を調整してその開度を上下駆動ローラーの間の間隔と同じにし、圧下後の鋳造スラブをクランプすることに用いられるステップとを含むことを特徴とする連続鋳造スラブ凝固端高圧圧下方法。 A continuous casting slab solidification end high-pressure reduction method,
(1) The clamp cylinder applies a constant pressure to the upper frame, makes the opening of the left driven roller group the same as the cast slab thickness before reduction, and is used to clamp the cast slab before reduction;
(2) a step of setting the amount of reduction to 5 to 20 mm and performing high-pressure reduction deformation on the cast slab in conjunction with the drive roller by a reduction device;
(3) adjusting the right driven roller group so that the opening thereof is the same as the interval between the upper and lower drive rollers, and including a step used for clamping the cast slab after the reduction. Solidification end high pressure reduction method.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325414.1A CN104057049B (en) | 2014-07-09 | 2014-07-09 | The continuous casting machine fan-shaped segment of the big pressure of continuous casting billet solidifying end and big reduction method thereof |
| CN201410325414.1 | 2014-07-09 | ||
| PCT/CN2014/087369 WO2016004682A1 (en) | 2014-07-09 | 2014-09-25 | Continuous casting machine sector section for deep pressing of continuous casting blank solidification tail end and deep pressing method for continuous casting blank solidification tail end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017532202A true JP2017532202A (en) | 2017-11-02 |
| JP6541043B2 JP6541043B2 (en) | 2019-07-10 |
Family
ID=51545144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017501264A Active JP6541043B2 (en) | 2014-07-09 | 2014-09-25 | High pressure reduction device located at the solidifying end of a continuous casting slab and its high pressure reduction method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170113266A1 (en) |
| EP (1) | EP3167974B8 (en) |
| JP (1) | JP6541043B2 (en) |
| KR (1) | KR20170021872A (en) |
| CN (1) | CN104057049B (en) |
| WO (1) | WO2016004682A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057049B (en) * | 2014-07-09 | 2016-06-15 | 北京科技大学 | The continuous casting machine fan-shaped segment of the big pressure of continuous casting billet solidifying end and big reduction method thereof |
| CN105689664B (en) * | 2014-11-27 | 2017-11-28 | 宝钢工程技术集团有限公司 | Fan-shaped section and its application method under weight for improving the loose shrinkage cavity defect of slab |
| CN106141127A (en) * | 2015-04-17 | 2016-11-23 | 宝钢工程技术集团有限公司 | Continuous casting producing method under weight |
| CN104858383A (en) * | 2015-06-10 | 2015-08-26 | 中冶连铸技术工程有限责任公司 | Slab pressing segment |
| CN106552912A (en) * | 2016-11-28 | 2017-04-05 | 东北大学 | The compact fan-shaped section of enhancement mode is used under a kind of weight of continuous casting and solidifying end |
| CN106623834B (en) * | 2016-12-22 | 2019-04-05 | 中冶京诚工程技术有限公司 | Sector section device for continuous casting slab heavy pressing |
| CN109926554A (en) * | 2017-12-19 | 2019-06-25 | 宝钢工程技术集团有限公司 | A kind of fan-shaped section and its application method of improvement and elimination slab internal defect |
| CN108788041B (en) * | 2018-07-03 | 2020-01-03 | 东北大学 | Sector section roller row structure for continuous casting solidification tail end heavy pressing and using method |
| CN109261922B (en) * | 2018-10-26 | 2020-11-06 | 中国重型机械研究院股份公司 | Casting blank production process of solidification tail end large-reduction continuous casting machine |
| CN109434053A (en) * | 2018-11-21 | 2019-03-08 | 中冶南方连铸技术工程有限责任公司 | The big pressure fan-shaped section of sheet billet continuous casting |
| CN109434056A (en) * | 2018-12-05 | 2019-03-08 | 东北大学 | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end |
| CN109465415A (en) * | 2018-12-07 | 2019-03-15 | 东北大学 | Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end |
| CN110181016B (en) * | 2019-05-27 | 2024-03-29 | 北京首钢国际工程技术有限公司 | 2+8 roller combined thick plate blank large-pressure casting and rolling machine |
| CN110227806B (en) * | 2019-05-27 | 2024-05-14 | 北京首钢国际工程技术有限公司 | Device for greatly pressing solidification tail end of casting-rolling type continuous casting machine |
| CN113843400A (en) | 2020-06-25 | 2021-12-28 | 宝山钢铁股份有限公司 | Slab cooling and reduction method for improving quality of casting blank |
| CN113600775A (en) * | 2021-08-26 | 2021-11-05 | 新疆八一钢铁股份有限公司 | Slab continuous casting machine slab stagnation rapid treatment method |
| CN115090840B (en) * | 2022-06-28 | 2023-06-16 | 武汉钢铁有限公司 | Online monitoring and out-of-tolerance judging system for deformation of sector section mounting base of continuous casting machine |
| CN116422852B (en) * | 2023-06-12 | 2023-11-17 | 中国重型机械研究院股份公司 | Seven-roller large-reduction sector control model for continuous casting of super-thick plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01205861A (en) * | 1988-02-10 | 1989-08-18 | Nippon Steel Corp | Method for controlling clamping force of cast slab in continuous casting equipment |
| JP2000024764A (en) * | 1998-07-09 | 2000-01-25 | Sumitomo Metal Ind Ltd | Rolling reduction apparatus with rolls in continuous casting equipment |
| JP2001113349A (en) * | 1999-10-15 | 2001-04-24 | Sumitomo Metal Ind Ltd | Rolling reduction device in continuous casting equipment |
| CN201211554Y (en) * | 2008-06-20 | 2009-03-25 | 中冶赛迪工程技术股份有限公司 | Sector section equipment |
| CN202447620U (en) * | 2011-12-08 | 2012-09-26 | 武汉重冶重工科技有限公司 | Fan-shaped section equipment of plate blank continuous casting machine |
| WO2015174395A1 (en) * | 2014-05-14 | 2015-11-19 | 新日鐵住金株式会社 | Continuous casting method for slab |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901785A (en) * | 1988-07-25 | 1990-02-20 | Hazelett Strip-Casting Corporation | Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product |
| AT3953U3 (en) * | 2000-06-02 | 2001-04-25 | Voest Alpine Ind Anlagen | STRING GUIDING ELEMENT AND STRING GUIDING SEGMENT WITH INTEGRATED STRING GUIDING ELEMENT |
| JP4555183B2 (en) * | 2005-07-15 | 2010-09-29 | 株式会社神戸製鋼所 | Manufacturing method of forming aluminum alloy sheet and continuous casting apparatus for forming aluminum alloy |
| BRPI0818962B1 (en) * | 2007-11-19 | 2017-07-04 | Posco | CONTINUOUS INJECTION PLATE AND METHOD FOR MANUFACTURING THE SAME |
| AT506549B1 (en) * | 2008-03-28 | 2011-06-15 | Siemens Vai Metals Tech Gmbh | TRAIN TOUR SEGMENT |
| CN201275608Y (en) * | 2008-10-27 | 2009-07-22 | 上海宝钢设备检修有限公司 | Continuous casting roll system device of slab casting machine sector segment |
| CN201410546Y (en) * | 2009-06-19 | 2010-02-24 | 中冶赛迪工程技术股份有限公司 | Fan-shaped segment |
| CN102500747B (en) * | 2011-11-15 | 2014-04-02 | 田志恒 | Online detection system for solid-phase internal boundaries and solidification end positions of continuous casting blanks and method |
| CN202447621U (en) * | 2011-12-08 | 2012-09-26 | 武汉重冶重工科技有限公司 | Segment frame structure of slab continuous casting machine |
| KR101376574B1 (en) * | 2011-12-28 | 2014-04-02 | (주)포스코 | Roll gap-checking apparatus for continuous casting plant |
| CN102921914B (en) * | 2012-12-01 | 2014-06-04 | 新余钢铁集团有限公司 | Heavy reduction technology for improving center segregation and center porosity of super-thick slabs |
| CN103878331A (en) * | 2014-03-27 | 2014-06-25 | 中国重型机械研究院股份公司 | Sector segment structure capable of compositely pressing continuous casting solidification tail end of extra-thick plate |
| CN203944809U (en) * | 2014-07-09 | 2014-11-19 | 北京科技大学 | The continuous casting machine fan-shaped segment that continuous casting billet solidifying end is depressed greatly |
| CN104057049B (en) * | 2014-07-09 | 2016-06-15 | 北京科技大学 | The continuous casting machine fan-shaped segment of the big pressure of continuous casting billet solidifying end and big reduction method thereof |
-
2014
- 2014-07-09 CN CN201410325414.1A patent/CN104057049B/en active Active
- 2014-09-25 WO PCT/CN2014/087369 patent/WO2016004682A1/en active Application Filing
- 2014-09-25 KR KR1020177002175A patent/KR20170021872A/en not_active Application Discontinuation
- 2014-09-25 EP EP14897138.5A patent/EP3167974B8/en active Active
- 2014-09-25 JP JP2017501264A patent/JP6541043B2/en active Active
-
2017
- 2017-01-09 US US15/401,325 patent/US20170113266A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01205861A (en) * | 1988-02-10 | 1989-08-18 | Nippon Steel Corp | Method for controlling clamping force of cast slab in continuous casting equipment |
| JP2000024764A (en) * | 1998-07-09 | 2000-01-25 | Sumitomo Metal Ind Ltd | Rolling reduction apparatus with rolls in continuous casting equipment |
| JP2001113349A (en) * | 1999-10-15 | 2001-04-24 | Sumitomo Metal Ind Ltd | Rolling reduction device in continuous casting equipment |
| CN201211554Y (en) * | 2008-06-20 | 2009-03-25 | 中冶赛迪工程技术股份有限公司 | Sector section equipment |
| CN202447620U (en) * | 2011-12-08 | 2012-09-26 | 武汉重冶重工科技有限公司 | Fan-shaped section equipment of plate blank continuous casting machine |
| WO2015174395A1 (en) * | 2014-05-14 | 2015-11-19 | 新日鐵住金株式会社 | Continuous casting method for slab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104057049A (en) | 2014-09-24 |
| EP3167974A1 (en) | 2017-05-17 |
| EP3167974A4 (en) | 2018-04-25 |
| US20170113266A1 (en) | 2017-04-27 |
| WO2016004682A1 (en) | 2016-01-14 |
| CN104057049B (en) | 2016-06-15 |
| JP6541043B2 (en) | 2019-07-10 |
| KR20170021872A (en) | 2017-02-28 |
| EP3167974B8 (en) | 2020-04-08 |
| EP3167974B1 (en) | 2020-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2017532202A (en) | Continuous caster fan-shaped segment with high-pressure reduction at the solidified end of continuous cast slab and its high-pressure reduction method | |
| CN104399923B (en) | A kind of method producing special heavy plate continuous casting billet | |
| CN109848383B (en) | Flexible reduction method for improving internal quality of casting blank | |
| CN105689664A (en) | Heavy reduction sector section used for overcoming plate blank looseness and shrinkage defects and application method thereof | |
| CN203944809U (en) | The continuous casting machine fan-shaped segment that continuous casting billet solidifying end is depressed greatly | |
| CN204975250U (en) | To chamfer continuous casting billet bight carrying out smooth equipment | |
| CN202762742U (en) | Auxiliary clamping device for continuous casting and rolling machine | |
| CN204622663U (en) | Roller briquetting machine combined type roll body | |
| CN109732049A (en) | A kind of vertical throwing conticaster of small billet and soft reduction process device | |
| CN207668474U (en) | A kind of Ag positive plate casting machine stripper apparatus | |
| CN104308108A (en) | Straightening machine and method utilizing straightening machine reduce clamping deformation of big round billet | |
| CN102312250B (en) | Aligning and clamping mechanism for anode guiding rod | |
| CN103121044B (en) | Novel method and novel device for treating stalled aluminum ingots | |
| CN109434053A (en) | The big pressure fan-shaped section of sheet billet continuous casting | |
| CN209393954U (en) | The big pressure fan-shaped section of sheet billet continuous casting | |
| CN210996369U (en) | Narrow-face foot roller device for slab continuous casting machine | |
| CN203209653U (en) | Continuous casting blank deviation rectifying device | |
| CN203030644U (en) | Drawing platform device | |
| CN203360456U (en) | Novel rotary drum | |
| CN205008545U (en) | Automatic box turnover machine with supplementary centre gripping in side | |
| CN201070637Y (en) | Roll change lifting device of rough rolling edger mill | |
| CN104550802A (en) | Large-rolling reduction cast flow guide device of continuous casting machine | |
| CN206501875U (en) | One kind mold changing car | |
| CN109434056A (en) | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end | |
| CN203390720U (en) | Roller clamping and conveying device for trimming and grinding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20180627 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180703 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20181002 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20181130 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20181227 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190319 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190327 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190521 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190530 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6541043 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |