JPH0947913A - Cutting method for surface of plate - Google Patents
Cutting method for surface of plateInfo
- Publication number
- JPH0947913A JPH0947913A JP19871995A JP19871995A JPH0947913A JP H0947913 A JPH0947913 A JP H0947913A JP 19871995 A JP19871995 A JP 19871995A JP 19871995 A JP19871995 A JP 19871995A JP H0947913 A JPH0947913 A JP H0947913A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- cooling water
- slices
- milling cutter
- cutting edge
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、スラブや熱延鋼
板（鋼帯）等の板材の表面切削に使用するフライスの寿
命の延長化、目詰まりを回避し安定した表面切削を行お
うとするものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to extend the life of a milling cutter used for surface cutting of plate materials such as slabs and hot rolled steel plates (steel strips), avoid clogging, and perform stable surface cutting. Is.
【０００２】[0002]
【従来の技術】スラブや熱延鋼板の表面手入れは従来、
砥石を備えたグラインダー等を用いるのが一般的であ
り、これに関する文献としては例えば特開昭５７−０９
１８５６号公報が参照される。2. Description of the Related Art The surface care of slabs and hot-rolled steel sheets has traditionally been
It is general to use a grinder or the like equipped with a grindstone, and as a literature relating to this, for example, Japanese Patent Laid-Open No. 57-09.
Reference is made to Japanese Patent No. 1856.
【０００３】[0003]
【発明が解決しようとする課題】ところで、このような
グラインダーはプレートのような幅広で長さの長いもの
を処理する場合には作業能率が悪く、とくにダイレクト
圧延に当たってスラブの表面を手入れするような場合に
は処理物の長時間にわたる滞留が避けられないためその
有する熱が大気放散するためエネルギーロスが大きい不
利があった。By the way, such a grinder has a low work efficiency when processing a wide plate having a long length such as a plate, and especially when the slab surface is cared for in direct rolling. In this case, the treated product is unavoidably retained for a long period of time, and the heat of the treated product is radiated to the atmosphere, resulting in a large energy loss.
【０００４】切削能率の改善を図る手段としては、プレ
ートの幅方向の全域をカバーできる胴長を有するフライ
ス式切削刃を用いる試みもなされているが、かかる切削
刃としてセラミックスやタングステンカーバイドといっ
た非鉄系刃物を用いると摩耗による刃の寿命が極端に短
くこれにかかる経費が嵩む欠点があった。As a means for improving the cutting efficiency, an attempt has been made to use a milling type cutting blade having a body length capable of covering the entire area of the plate in the width direction. As such a cutting blade, non-ferrous materials such as ceramics and tungsten carbide are used. The use of a blade has a drawback that the life of the blade due to abrasion is extremely short and the cost required for this is high.
【０００５】また、切削刃として鉄系の刃物を用いた場
合にはセラミックスやタングステンカーバーイドのよう
な非鉄系刃物のような問題はないものの、刃先へ切り粉
が付着しやすく切り粉から刃先への入熱により溶損を起
こすとともに刃先の目詰まりを起こしやすいため長時間
にわたる安定した操業を実施することができない不利が
あった。Further, when an iron-based blade is used as the cutting blade, there is no problem such as non-ferrous blades such as ceramics and tungsten carbide, but the cutting powder is apt to adhere to the cutting edge from the cutting powder to the cutting edge. There is a disadvantage that stable operation over a long period of time cannot be carried out because the heat input of 3 causes melting and damage of the cutting edge.
【０００６】この発明の目的は、板材の表面を効率よく
安定して切削できる新規な方法を提案するところにあ
る。An object of the present invention is to propose a new method capable of efficiently and stably cutting the surface of a plate material.
【０００７】[0007]
【課題を解決するための手段】この発明は、鉄系のフラ
イスを用いて板材の表面切削を行うに当たり、フライス
のすくい面または逃げ面に回転速度および外径に応じた
圧力になる冷却水をスプレーすることを特徴とする板材
の表面切削方法であり、フライスの回転速度は２０〜１
２０ｍ／ｓｅｃ、フライスの外径は６００〜１０００ｍ
ｍとするのがよく、また冷却水の圧力については３〜３
００ｋｇｆ／ｃｍ2 の範囲で調整するのがよい。According to the present invention, when the surface of a plate material is cut using an iron-based milling machine, cooling water having a pressure corresponding to the rotation speed and the outer diameter is applied to the rake face or flank of the milling cutter. It is a surface cutting method of a plate material characterized by spraying, and the rotation speed of the milling cutter is 20 to 1
20m / sec, outer diameter of milling cutter is 600-1000m
m is preferable, and the cooling water pressure is 3 to 3
It is preferable to adjust in the range of 00 kgf / cm 2 .
【０００８】[0008]
【発明の実施の形態】フライスの回転速度とその外径に
応じた水圧になる冷却水を刃先のすくい面または逃げ面
に向けてスプレーすることにより切削によって付着した
高温の切り粉をフライスの回転による遠心力と水の圧力
によって即座に除去できるので、刃先における溶着物か
らの入熱が極めて小さくなり、フライスの寿命が飛躍的
に延びるとともに溶着物による刃先の目詰まり等がなく
なることを知見して、本発明をなした。BEST MODE FOR CARRYING OUT THE INVENTION By turning cooling water having a water pressure corresponding to the rotating speed of a milling cutter and its outer diameter toward a rake face or a flank of a cutting edge, high temperature cutting chips attached by cutting are rotated. Since it can be immediately removed by centrifugal force and water pressure due to, the heat input from the weld material at the cutting edge is extremely small, the life of the milling cutter is dramatically extended, and the cutting edge is not clogged by the welding material. Thus, the present invention was made.
【０００９】ここに、フライスの回転による遠心力ＦW
は、 ＦW ＝ｍ（Ｖ2 ／ｒ）） ｍ：切り粉の質量 Ｖ：フライスの回転速度 ｒ：フライスの外径の１／２ また、冷却水のパワーＦP は、 ＦP ＝1/2 ・ｑｖ2 ＝ａ (Ｐ2 ／Ｐ1 )3/2 ｑ：水の質量 ｖ：水の衝突速度 ａ：ノズル型番に応じた水の基準圧力Ｐ1 での流量から
定まる定数 Ｐ2 ：水の供給圧力 にて表示されるので、フライスによる切削において溶着
した切り粉を除去するためには、冷却水の圧力を下記式
を満足するようにして、スプレーすれば良いことが導か
れる。Here, the centrifugal force F W due to the rotation of the milling cutter
Is: F W = m (V 2 / r)) m: Mass of cutting powder V: Rotation speed of milling machine r: 1/2 of outer diameter of milling machine Also, cooling water power F P is F P = 1 / 2 · qv 2 = a (P 2 / P 1 ) 3/2 q: mass of water v: collision velocity of water a: constant determined from flow rate at reference pressure of water P 1 according to nozzle model number P 2 : water Since it is displayed by the supply pressure of, the cutting water adhering in the cutting with the milling cutter can be removed by spraying with the cooling water pressure satisfying the following formula.
【００１０】(ＦW ＋ＦP ) ／Ａ＞σB Ａ：切り粉の溶着物断面積 σB ：被切削材の高温引張強度 そこでフライスのすくい面や逃げ面に各種条件で冷却水
をスプレーして、刃先の溶損や目詰まりが発生しない条
件を実験して検討した。(F W + F P ) / A> σ B A: Cross-sectional area of the weld deposit of cutting powder σ B : High temperature tensile strength of the material to be cut Then, spray the cooling water on the rake face and flank face of the milling machine under various conditions. Then, the conditions under which melting and clogging of the cutting edge did not occur were experimentally examined.
【００１１】以下にその一例としてフライスのすくい面
に冷却水を図１に示すようにしてスプレーした場合の結
果を示す。図２はフライスの外径を８００ｍｍとした場
合、フライスの周速を２０〜１２０ｍ／ｓｅｃの範囲で
変えて、刃先の溶損や目詰まりが発生しない冷却水の圧
力を実験で求めたものであり、実線は流量Ｑのとき冷却
水圧力の下限値を示していて、破線は流量２・Ｑのとき
の冷却水圧力の下限値を示している。As an example, the result of spraying cooling water on the rake face of the milling cutter as shown in FIG. 1 is shown below. Fig. 2 shows the experimentally determined pressure of the cooling water that does not cause melting loss or clogging of the cutting edge when the outer diameter of the milling cutter is 800 mm and the peripheral speed of the milling cutter is changed in the range of 20 to 120 m / sec. Yes, the solid line shows the lower limit value of the cooling water pressure when the flow rate is Q, and the broken line shows the lower limit value of the cooling water pressure when the flow rate is 2 · Q.
【００１２】これより、フライスの周速の上昇にともな
って遠心力ＦＷが増加するために、冷却水の圧力を小さ
くして冷却水のパワーＦＰを低下しても、刃先の溶損や
目詰まりが発生しないことがわかる。即ち、フライスの
周速が増大するほど、冷却水の圧力を減少することが好
ましい。また、この図よりフライスの周速２０〜１２０
ｍ／ｓｅｃの範囲において、冷却水圧力は３〜３００ｋ
ｇｆ／ｃｍ2 の範囲で調整すれば良いことがわかる。As a result, the centrifugal force FW increases as the peripheral speed of the milling cutter increases, so even if the pressure of the cooling water is reduced and the power FP of the cooling water is reduced, the cutting edge is melted or clogged. It turns out that does not occur. That is, it is preferable to decrease the pressure of the cooling water as the peripheral speed of the milling cutter increases. Also, from this figure, the peripheral speed of the milling cutter is 20 to 120.
Cooling water pressure is 3 to 300k in the range of m / sec.
It is understood that the adjustment may be made within the range of gf / cm 2 .
【００１３】図３はフライスの周速を２０ｍ／ｓｅｃと
一定にした場合、フライスの外径を２００〜１０００ｍ
ｍの範囲で変えて、刃先の溶損や目詰まりが発生しない
冷却水の圧力を実験で求めたものであり、実線は流量Ｑ
のときの冷却水圧力の下限値を示しており、破線は流量
２・Ｑのときの冷却水圧力の下限値を示している。これ
より、フライスの外径が増加すると遠心力ＦＷはそれに
対して反比例して減少するために、冷却水の圧力は１．
５乗則で大きくし冷却水のパワーＦＰを増大することに
よって、刃先の溶損や目詰まりが発生しないことがわか
る。即ち、フライスの外径が大きいほど、冷却水の圧力
を増大することが好ましい。これらのことから、フライ
スのすくい面にフライスの回転速度および外径に応じた
冷却水をスプレーすれば良い。FIG. 3 shows that when the peripheral speed of the milling cutter is constant at 20 m / sec, the outer diameter of the milling cutter is 200 to 1000 m.
The pressure of the cooling water that does not cause melting loss or clogging of the cutting edge is experimentally determined by changing the range of m, and the solid line indicates the flow rate Q.
Shows the lower limit value of the cooling water pressure, and the broken line shows the lower limit value of the cooling water pressure when the flow rate is 2 · Q. From this, when the outer diameter of the milling cutter increases, the centrifugal force FW decreases in inverse proportion to it, so the pressure of the cooling water is 1.
It can be seen that by increasing the power FP of the cooling water by increasing it according to the fifth power law, melting loss and clogging of the cutting edge do not occur. That is, it is preferable to increase the pressure of the cooling water as the outer diameter of the milling cutter increases. For these reasons, the rake face of the milling cutter may be sprayed with cooling water according to the rotating speed and outer diameter of the milling cutter.
【００１４】一方、図２又は図３から冷却水の推量が２
倍になると刃先の溶損や目詰まりが発生しない冷却水の
圧力は小さくなっているが、これは流量の増加によって
単位時間当たりに刃先に衝突する推量が増加するためと
考えられる。フライスの回転速度を２０〜１２０ｍ／ｓ
ｅｃとするのが好ましいのは、フライスの回転速度を２
０ｍ／ｓｅｃよりも小さくすると、切削抵抗によって減
速し停止するという問題があり、フライスの回転速度を
１２０ｍ／ｓｅｃよりも大きくすると回転数による振動
周波数が危険速度と一致するか又はそれ以上となって、
機械が共振し破壊することがあるからである。On the other hand, the estimation of the cooling water is 2 from FIG. 2 or FIG.
The pressure of the cooling water, which does not cause melting damage or clogging of the cutting edge, decreases with the doubling, but it is considered that this is because the increase in the flow rate increases the probability of collision with the cutting edge per unit time. Rotating speed of milling cutter is 20 ~ 120m / s
ec is preferable because the rotation speed of the milling cutter is 2
If it is smaller than 0 m / sec, there is a problem that it slows down and stops due to cutting resistance. If the rotation speed of the milling cutter is larger than 120 m / sec, the vibration frequency depending on the rotation speed becomes equal to or higher than the critical speed. ,
This is because the machine may resonate and be destroyed.
【００１５】また、フライスの外径を６００〜１０００
ｍｍとするのが好ましいのは、外径を６００ｍｍよりも
小さくすると周速を達成するための回転数が上昇し、振
動周波数が危険速度を越えるか、または切削抵抗による
速度降下が大きく停止するという問題があり、外径を１
０００ｍｍよりも大きくすると回転数は低下して振動に
対しては有利になるが、反面遠心力が減少し刃先の溶損
や目詰まりが発生しやすくなるとともに、駆動するため
の電動機出力が大きくなるという問題があるからであ
る。以上の説明ではフライスのすくい面にスプレーする
場合について述べたが、フライスの逃げ面にスプレーす
る場合も同一であったので説明を省略した。The outer diameter of the milling cutter is 600 to 1000.
It is preferable that the diameter is set to mm when the outer diameter is smaller than 600 mm, the number of rotations for achieving the peripheral speed increases, the vibration frequency exceeds the critical speed, or the speed drop due to cutting resistance stops significantly. There is a problem, the outer diameter is 1
If it is larger than 000 mm, the rotation speed will be reduced and it will be advantageous for vibration, but on the other hand, centrifugal force will be reduced and melting damage and clogging of the cutting edge will be more likely to occur, and the output of the motor for driving will be increased. Because there is a problem. In the above description, the case of spraying on the rake face of the milling cutter was described, but the case of spraying on the flank face of the milling cutter was the same, so the description is omitted.
【００１６】上掲図１は鉄系のフライスを使用して冷却
水をフライスのすくい面にスプレーして、鋼片表面の切
削を行う場合の状況を、また、図４はこのフライスを組
み込んだ設備の全体構成をそれぞれ示したものであり、
１ａ, １ｂはフライス、２ａ, ２ｂは主軸、３冷却水の
スプレーノズル、４はフライス１ａ，１ｂを回転可能に
支持する軸受、５は圧下シリンダー、６はハウジング、
７は動力の伝達用スピンドル、８はピニオンスタンド、
９は電動機である。The above-mentioned FIG. 1 shows the situation in which the cooling water is sprayed onto the rake face of the milling cutter to cut the surface of the billet, and FIG. 4 incorporates this milling cutter. It shows the overall configuration of the equipment,
1a and 1b are milling cutters, 2a and 2b are main shafts, 3 cooling water spray nozzles, 4 is a bearing that rotatably supports the milling cutters 1a and 1b, 5 is a reduction cylinder, 6 is a housing,
7 is a power transmission spindle, 8 is a pinion stand,
9 is an electric motor.
【００１７】[0017]
実施例１ 厚さ１２０ｍｍ、幅８００ｍｍになるスラブを用い、直
径８００mmの鉄系のフライスを６５ｍ／S の速度で回転
させるとともにそのすくい面に流量５００ l/ｍｉｎ／
ｍ、圧力５０kgf/cm2 の冷却水をスプレーしつつ表面切
削を行った本発明と、フライスの周速を２０ｍ／ｓｅ
ｃ，冷却水の圧力を３ｋｇｆ／ｃｍ2 とした従来の方法
（その他の条件は本発明と同一とした。）について刃先
の溶損や目詰まり状況について調査した。その結果、従
来の方法ではその寿命が３０分程度であったのに対して
この発明に従う方法では刃先の溶損や目詰まりは７２時
間程度までは全くなくフライスの寿命を３０日程度まで
延ばすことができることが確認された。Example 1 Using a slab having a thickness of 120 mm and a width of 800 mm, an iron-based milling cutter having a diameter of 800 mm was rotated at a speed of 65 m / S and a flow rate of 500 l / min /
The present invention in which surface cutting was performed while spraying cooling water of m and a pressure of 50 kgf / cm 2 , and the peripheral speed of the milling cutter was 20 m / se.
c, Melting loss and clogging of the cutting edge were investigated by a conventional method in which the pressure of the cooling water was 3 kgf / cm 2 (other conditions were the same as in the present invention). As a result, in the conventional method, the service life was about 30 minutes, whereas in the method according to the present invention, the cutting edge was not melted or clogged up to about 72 hours, and the life of the milling cutter was extended to about 30 days. It was confirmed that
【００１８】実施例２ 冷却水をフライスの逃げ面にスプレーしたときの実施例
は以下のとおりである。前記実施例１と同一寸法のスラ
ブを用いて、直径８００ｍｍの鉄系のフライスを６５ｍ
／ｓｅｃの速度で回転させると共に、フライスの逃げ面
に流量５００ l／ｍｉｎ／ｍ，圧力５０ｋｇｆ／ｃｍ2
の冷却水をスプレーしつつ表面切削を行った本発明と、
同じ直径のフライスを２０ｍ／ｓｅｃの速度で回転さ
せ、流量５００ l／ｍｉｎ／ｍ，圧力を３ｋｇｆ／ｃｍ
2 の冷却水をスプレーしつつ表面切削を行った従来方法
（その他の条件は発明と同一とした。）について、刃先
の溶損や目詰まりの状況について調査した。その結果、
前記実施例１と同一の結果が得られた。Example 2 An example in which cooling water was sprayed onto the flank of a milling cutter is as follows. Using a slab having the same size as in Example 1, an iron-based milling cutter having a diameter of 800 mm is 65 m long.
While rotating at a speed of / sec, flow rate of 500 l / min / m and pressure of 50 kgf / cm 2 on the flank of the milling cutter.
The present invention in which the surface cutting is performed while spraying the cooling water of
A milling cutter of the same diameter is rotated at a speed of 20 m / sec, a flow rate of 500 l / min / m and a pressure of 3 kgf / cm.
With respect to the conventional method of performing surface cutting while spraying the cooling water of 2 (other conditions were the same as those of the invention), the state of melting loss and clogging of the cutting edge was investigated. as a result,
The same result as in Example 1 was obtained.
【００１９】なお、この実施例においては、先行して搬
送される鋼片の後端部と後続の鋼片の先端部を突き合わ
せ接合し、その際に生じた隆起部を切削する場合につい
ても調査したが、この場合もフライスの寿命が従来にも
増して飛躍的に延長されることが確かめられた。In addition, in this embodiment, the case where the rear end of the steel piece previously conveyed and the front end of the succeeding steel piece are butt-joined and the raised portion formed at that time is cut is also investigated. However, in this case as well, it was confirmed that the life of the milling cutter was dramatically extended compared to the conventional one.
【００２０】[0020]
【発明の効果】以上説明したようにこの発明によれば、
長時間にわたって安定した表面切削を行うことができ切
削効率を著しく向上させることができる。As described above, according to the present invention,
Stable surface cutting can be performed for a long time, and cutting efficiency can be significantly improved.
【図１】鋼片の表面を切削している状況を示した図であ
る。FIG. 1 is a diagram showing a situation in which the surface of a steel slab is being cut.
【図２】フライスの周速と冷却水の圧力の関係を示した
グラフである。FIG. 2 is a graph showing the relationship between the peripheral speed of the milling cutter and the pressure of cooling water.
【図３】フライスの外径と冷却水の圧力の関係を示した
グラフである。FIG. 3 is a graph showing the relationship between the outer diameter of the milling cutter and the pressure of cooling water.
【図４】表面切削設備の構成を示した図である。FIG. 4 is a diagram showing a configuration of surface cutting equipment.
１ａ フライス １ｂ フライス ２ａ 主軸 ２ｂ 主軸 ３ スプレーノズル ４ 軸受 ５ 圧下シリングー ６ ハウジング ７ 動力伝達用のスピンドル ８ ピニオンスタンド ９ 電動機 1a Milling cutter 1b Milling cutter 2a Spindle 2b Spindle 3 Spray nozzle 4 Bearing 5 Rolling down shirring 6 Housing 7 Spindle for power transmission 8 Pinion stand 9 Electric motor
フロントページの続き (72)発明者 清水 益人 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社千葉製鉄所内 (72)発明者 天笠 敏明 千葉県千葉市中央区川崎町１番地 川崎製 鉄株式会社千葉製鉄所内 (72)発明者 林 寛治 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内 (72)発明者 田代 勝三 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内 (72)発明者 市来崎 哲雄 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島研究所内Front page continuation (72) Inventor Masuhito Shimizu 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Inside the Chiba Steel Works, Kawasaki Steel Co., Ltd. (72) Toshiaki Amagasa 1 Kawasaki-cho, Chuo-ku, Chiba-shi Inside Chiba Steel Works (72) Inventor Kanji Hayashi 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Inside Hiroshima Works (72) Inventor Katsumi Tashiro 4-6 Kannon Shinmachi, Nishi-ku, Hiroshima Prefecture 22 Mitsubishi Heavy Industries Ltd. Hiroshima Works (72) Inventor Tetsuo Ikuzaki 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City Hiroshima Prefecture Mitsubishi Heavy Industries Ltd. Hiroshima Research Laboratory
Claims (3)
を行うに当たり、 フライスのすくい面または逃げ面に回転速度および外径
に応じた圧力になる冷却水をスプレーすることを特徴と
する板材の表面切削方法。1. When performing surface cutting of a plate material using an iron-based milling machine, the rake surface or flank surface of the milling machine is sprayed with cooling water having a pressure corresponding to the rotation speed and the outer diameter. Surface cutting method.
ｓｅｃ、フライスの外径を６００〜１０００ｍｍとする
ことを特徴とする請求項１に記載の板材の表面切削方
法。2. The rotating speed of the milling cutter is 20 to 120 m /
The surface cutting method for a plate material according to claim 1, wherein the outer diameter of the milling cutter is 600 to 1000 mm.
2 の範囲で調整することを特徴とする請求項１または２
に記載の板材の表面切削方法。3. The pressure of the cooling water is 3 to 300 kgf / cm.
3. Adjusting within the range of 2.
The method for cutting the surface of a plate material according to.
Priority Applications (19)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871995A JP3251817B2 (en) | 1995-08-03 | 1995-08-03 | Surface cutting method for steel sheet |
| CA002366287A CA2366287C (en) | 1995-07-24 | 1996-07-23 | Surface cutting apparatus for hot-rolled steel products |
| KR1019970701923A KR100249543B1 (en) | 1995-07-24 | 1996-07-23 | Surface cutting method and apparatus for hot-rolled steel products |
| CA002366299A CA2366299C (en) | 1995-07-24 | 1996-07-23 | Surface cutting of hot-rolled steel products |
| DE69634103T DE69634103T2 (en) | 1995-07-24 | 1996-07-23 | Device for surface treatment of hot-rolled steel materials |
| EP02004133A EP1213075B1 (en) | 1995-07-24 | 1996-07-23 | Surface cutting apparatus for hotrolled steel products |
| CA002200740A CA2200740C (en) | 1995-07-24 | 1996-07-23 | Surface cutting method and apparatus for hot-rolled steel products |
| DE69626622T DE69626622T2 (en) | 1995-07-24 | 1996-07-23 | METHOD FOR SURFACE TREATMENT OF HOT ROLLED STEEL MATERIAL |
| DE69633751T DE69633751T2 (en) | 1995-07-24 | 1996-07-23 | Device for surface treatment of hot-rolled steel materials |
| EP02004134A EP1213076B1 (en) | 1995-07-24 | 1996-07-23 | Surface cutting apparatus for hotrolled steel products |
| EP02004135A EP1213077B1 (en) | 1995-07-24 | 1996-07-23 | Surface cutting apparatus for hotrolled steel products |
| US08/809,554 US5951220A (en) | 1995-07-24 | 1996-07-23 | Surface cutting method and apparatus for hot-rolled steel products |
| CN96191107A CN1066657C (en) | 1995-07-24 | 1996-07-23 | Method of surface machining of hot rolled steel materials and apparatus therefor |
| PCT/JP1996/002058 WO1997003778A1 (en) | 1995-07-24 | 1996-07-23 | Method of surface machining of hot rolled steel materials and apparatus therefor |
| EP96924194A EP0790093B1 (en) | 1995-07-24 | 1996-07-23 | Method of surface machining of hot rolled steel material |
| DE69633689T DE69633689T2 (en) | 1995-07-24 | 1996-07-23 | Device for surface treatment of hot-rolled steel materials |
| US09/326,684 US6192564B1 (en) | 1995-07-24 | 1999-06-07 | Surface cutting apparatus for hot-rolled steel products |
| US09/326,681 US6086296A (en) | 1995-07-24 | 1999-06-07 | Surface cutting apparatus for hot-rolled steel products |
| US09/326,687 US6195859B1 (en) | 1995-07-24 | 1999-06-07 | Surface cutting apparatus for hot-rolled steel products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871995A JP3251817B2 (en) | 1995-08-03 | 1995-08-03 | Surface cutting method for steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0947913A true JPH0947913A (en) | 1997-02-18 |
| JP3251817B2 JP3251817B2 (en) | 2002-01-28 |
Family
ID=16395872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19871995A Expired - Fee Related JP3251817B2 (en) | 1995-07-24 | 1995-08-03 | Surface cutting method for steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3251817B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009536581A (en) * | 2006-05-26 | 2009-10-15 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Apparatus and method for producing metal strip by continuous casting |
| JP2009538228A (en) * | 2006-05-26 | 2009-11-05 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Equipment for producing metal strip by continuous casting |
| JP2011093040A (en) * | 2009-10-29 | 2011-05-12 | Jx Nippon Mining & Metals Corp | Surface-cutting device |
| WO2016148097A1 (en) * | 2015-03-18 | 2016-09-22 | 三菱マテリアル株式会社 | Scalping cutter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0140041B1 (en) | 1993-02-09 | 1998-06-15 | 쯔지 하루오 | Power generator driving circuit and gray level voltage generator for lcd |
-
1995
- 1995-08-03 JP JP19871995A patent/JP3251817B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009536581A (en) * | 2006-05-26 | 2009-10-15 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Apparatus and method for producing metal strip by continuous casting |
| JP2009538228A (en) * | 2006-05-26 | 2009-11-05 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Equipment for producing metal strip by continuous casting |
| JP2011093040A (en) * | 2009-10-29 | 2011-05-12 | Jx Nippon Mining & Metals Corp | Surface-cutting device |
| WO2016148097A1 (en) * | 2015-03-18 | 2016-09-22 | 三菱マテリアル株式会社 | Scalping cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3251817B2 (en) | 2002-01-28 |
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