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JPS5823546A - Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal - Google Patents

Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal

Info

Publication number
JPS5823546A
JPS5823546A JP12052581A JP12052581A JPS5823546A JP S5823546 A JPS5823546 A JP S5823546A JP 12052581 A JP12052581 A JP 12052581A JP 12052581 A JP12052581 A JP 12052581A JP S5823546 A JPS5823546 A JP S5823546A
Authority
JP
Japan
Prior art keywords
roll
cooling
signal
water
set value
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
Application number
JP12052581A
Other languages
Japanese (ja)
Inventor
Akira Furukawa
明 古川
Soshichi Dobashi
土橋 荘七
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP12052581A priority Critical patent/JPS5823546A/en
Publication of JPS5823546A publication Critical patent/JPS5823546A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16Controlling or regulating processes or operations
    • B22D11/22Controlling or regulating processes or operations for cooling cast stock or mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637Accessories therefor
    • B22D11/068Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To make stable mass production of a uniform thin strip possible by controlling the temp. of the cooling water to be supplied into a cooling roll in accordance with the deviation of the actually measured value of the surface temp. of the roll from a set value. CONSTITUTION:A quick cooling roll 8 is revolved at a high speed, and molten metal is quickly cooled thereon to solidify to a thin strip 9. Cooling water is conducted from a rotary joint 13 through a hollow shaft 14 in the inside cylinder 12 of the roll to the part under the roll surface and is discharged through a hollow shaft 15 and a rotary joint 16. The discharged water is once stored in a water storage tank 17. Part thereof is sucked into a pump 21 for the purpose of recirculation and part thereof is discharged through an overflow pipe 18. The surface temp. of the roll is measured with a thermometer 19, and the signal thereof is fed to a controller 20, where the signal is compared with a set value and is allowed to cascade to a water temp. controller 22 so as to maintain the set value at all times. The signal of the thermometer 23 and the set signal of the controller 20 are collated, and the openin of a valve 24 connecting to a high pressure cooling water pipe 25 is regulated so as to attain the set value, whereby the prescirbed water temp, is obtained. On the other hand, the signal of a flow rate detector 26 enters a flow rate controller 27, where the signal is compared with a set value, and a valve 28, is controlled, whereby a constant flowrate is maintained at all times.

Description

【発明の詳細な説明】 本発1laS融金属急冷法によシ製造される薄帯板O調
造用冷却ロール表面温度制御法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the surface temperature of a cooling roll for preparing a thin ribbon O produced by the 1laS molten metal rapid cooling method of the present invention.

−IIK#1IIIII金属急冷法による急冷凝固金属
薄帯板の作製法紘高遮で回転される急冷用の冷却ロール
(通常金属ロール>O*Wにルツー勢よ勤II!融金属
をガス圧等によシ押し出して連続的に供給し超急冷で凝
固するもOとして知られている・これには冷却ロールを
1つだけ使用する片ロール法と冷却ロールを2ケ値用す
る双ロール法の両者が知られている0本発11紘この急
冷−−ルO冷却方法にsI−社るロール表面温[O制御
法に関するものである。従来この冷却−一ルを冷却する
方法として、例えば内部に水を通人する方法、ロール表
面に水を噴射する方法、p−ル内部にフィンを設はフィ
ンO発生する風で空冷する方法、ロール表面に補助水冷
ロールを設ける方法などが考案されてiる。これらの方
法は高々薄帯板f:数ゆ、製造時間にして数秒〜$10
秒という極めて短い時間の少量生童O場合には役立つも
のの大量、長時開先liの場合には極めて不充分なもの
でありた。
-IIK#1III Production method of rapidly solidified metal thin strip plate by metal quenching method Cooling roll for quenching rotated in a high-speed shield (normal metal roll > O It is also known as O, which is extruded continuously, fed continuously, and solidified by ultra-rapid cooling.For this purpose, there are two methods: the single-roll method, which uses only one cooling roll, and the twin-roll method, which uses two cooling rolls. Both of them are related to the known method of controlling the roll surface temperature [O] in this rapid cooling method. Conventionally, as a method for cooling this cooling method, for example, Methods such as passing water through the roll, spraying water onto the roll surface, installing fins inside the roll and cooling it with air generated by the fins, and installing an auxiliary water cooling roll on the roll surface have been devised. These methods can produce at most a few thin strips, and the manufacturing time is a few seconds to $10.
Although it is useful for a small amount of preparation for a very short time such as seconds, it is extremely insufficient for a large amount of preparation and a long time.

即ち長時間O生産においては溶鋳譲度の変動、気温の変
動、冷却水温の変動等Oa1々O外乱が製造装置へ入り
て来、従来の方法では製造中に冷却調−ル表面温go変
動は避けられないもので参うた。
In other words, during long-time O production, Oa per O disturbances such as fluctuations in melt yield, air temperature, and cooling water temperature enter the manufacturing equipment, and in the conventional method, cooling control surface temperature fluctuations occur during production. It was inevitable.

携面温度が変動すると、これによ〉装造される急冷凝固
金属薄帯板の物性、例えば磁気的性質が変動し、艮質な
材料の大量生糞と−ラ目的に対し、大量な問題点となう
てきた。
When the surface temperature changes, the physical properties, such as magnetic properties, of the rapidly solidified thin metal strip plate to be fabricated will change, causing a large amount of raw material and a large amount of raw material to be used. It has become a point.

本発−紘これらO問題点を有利に解決し、常に一定し九
四−ル表面温度を確保することによル、均一な薄帯板を
安定して大量に化量可能としたものである。
By solving these problems advantageously and ensuring a constant surface temperature, it is possible to produce uniform thin strips in large quantities in a stable manner. .

本発明紘p−ル表面O温度を計測しその温度と予め設定
し九温度の差によシ冷却水の温度を制御することによシ
冷却四−ル表面温度を常に一定にする%0fToる。即
ち本発明は溶融金属急冷法によル薄帯板を製造するに際
しその製造用冷却ロールO表面温度を計測し、同四−ル
の冷却設定値とgAw値を比較し、その温度偏差に基づ
きロール内へ供給する冷却水温を制御することを特徴と
する溶融金属急冷法による薄帯板製造用冷却ロールのl
!ITII温度制御法温度制御 −例をあげれば非晶質金属の製造の場合、水冷四−ルの
;ントロールを行なわなかつた場合、ロール温度と平均
板厚の変動量の関係は下記のような関係にあった。
The present invention measures the temperature on the surface of the filter and controls the temperature of the cooling water based on the difference between that temperature and the temperature, thereby keeping the surface temperature of the cooling filter constant at all times. . That is, the present invention measures the surface temperature of the manufacturing cooling roll O when manufacturing a thin strip plate by the molten metal quenching method, compares the cooling setting value of the same sheet with the gAw value, and calculates the temperature based on the temperature deviation. A cooling roll for manufacturing a thin strip plate by a molten metal quenching method characterized by controlling the temperature of cooling water supplied into the roll.
! ITII Temperature Control Method Temperature Control - For example, in the production of amorphous metals, if water-cooled four-wheel control is not performed, the relationship between the roll temperature and the amount of variation in average sheet thickness is as follows. It was there.

これを本発明を実施することによ〉表面温度変化を22
0’C±10℃に押えることが出来た粕来、平均板厚の
変動量も±1.0μ程度に押えることが出来九〇 以下本発明を図面に示す実施態様例に基づいて詳細に説
明する。
By implementing the present invention, the surface temperature change can be reduced by 22
The present invention will be explained in detail below based on the embodiments shown in the drawings. do.

第1図は本発明における薄帯板の製造の緒様例を示す全
体概念図であルlは所*0組成の金属材料Xを溶解する
滴解炉でToシ、高周波コイル(図示せず)等の追歯な
手段によ〕溶解する。溶解した金属材料2はストッノダ
−3の操作により導管4を通じ中間貯留槽5へ導かれ外
部から導入されるガス圧6等によ)ノズル7よシ連続し
て冷却ロール8上へと噴出される。冷却ロール上に噴出
され九淡湯はロール上で急速に凝固され薄帯板9となる
。薄帯板9は必要に応じガス噴射管1Gよpガス噴射等
の適歯な剥離手段により冷却ロールよシ剥離され、表面
にマグネットや接着層等をそなえた既知の先端捕促手段
によシリール11に巻取られゐ働 第2E紘本発明の一実施態様例を示すもので8は急冷−
−ルであシ、この上で溶湯は急冷凝固され薄帯板9とな
る。冷却ロール8社軸受(図示せず)で支えられベルト
等(図示せず)によ〕高速で回転させられる。
Fig. 1 is an overall conceptual diagram showing an example of the manufacturing process of a thin strip plate according to the present invention. ), etc.) to be dissolved]. The molten metal material 2 is guided to an intermediate storage tank 5 through a conduit 4 by the operation of a stocker 3, and is continuously ejected onto a cooling roll 8 through a nozzle 7 (by gas pressure 6 introduced from the outside). . The Kudanto which is ejected onto the cooling roll is rapidly solidified on the roll and becomes a thin strip plate 9. If necessary, the thin strip plate 9 is peeled off from a cooling roll using an appropriate peeling means such as a gas injection tube 1G or p-gas injection, and then reeled using a known tip catching means having a magnet, an adhesive layer, etc. on the surface. 11 shows an example of an embodiment of the present invention.
- the molten metal is rapidly solidified on this to form the thin ribbon plate 9. The cooling roll is supported by bearings (not shown) and rotated at high speed by belts (not shown).

12tiO−ル内に設けられた内筒で#)9回転接手1
3よ〕中空軸14を通じ送入する冷却水をロール表面下
へと導く役割をしている。ロール8を冷却し九水唸中空
軸15を通じ回転接手16を経て排出される。
#) 9 rotation joint 1 with the inner cylinder installed in the 12tiO-ru
3] It plays the role of guiding the cooling water introduced through the hollow shaft 14 below the surface of the roll. The roll 8 is cooled and discharged through a rotary joint 16 through a hollow shaft 15.

17a貯水槽でメジ、ここに一旦排水は貯えられ一部は
再循環のためポン7”21へと吸込まれると共に、一部
はオー・ぐ−フロー管18よシ排水される。
The waste water is temporarily stored in the water tank 17a, and part of it is sucked into the pump 7''21 for recirculation, and part of it is drained through the O-G-flow pipe 18.

19はロールl!!両温度を計測するための温度針であ
p1赤外線温度針や渦流式温度針など既知の計測機暢を
適宜に使用する。この温度針からの信号は制御器20へ
導入し、予め設定した設定値と比較し常に設定値を維持
するように水温aMi節計22へ信号がカスケードされ
る。ポンf21の送出側には温度計23が設けられてお
シ、ここからの温度信号と制御器2“0からの設定備考
がつき合わされ、設定値になるようにポンf21吸込−
の弁24の開rttts整する。弁240入口側には高
圧の冷水管25が接続されておシ、貯水槽内の水と冷水
との混合によシ所定の水温が得られる。
19 is a roll! ! As a temperature needle for measuring both temperatures, a known measuring device such as a P1 infrared temperature needle or an eddy current temperature needle is used as appropriate. The signal from this temperature needle is introduced into the controller 20, compared with a preset set value, and the signal is cascaded to the water temperature aMi meter 22 so that the set value is always maintained. A thermometer 23 is provided on the delivery side of the pump f21, and the temperature signal from this is compared with the setting notes from the controller 2"0, and the suction of the pump f21 is adjusted to the set value.
The opening of the valve 24 is adjusted. A high-pressure cold water pipe 25 is connected to the inlet side of the valve 240, and a predetermined water temperature is obtained by mixing the water in the water tank and the cold water.

一方、−ン/の吐出口には流量検出器26があシ、その
検出信号は流量調節計27へと伝えられ設定値と比較さ
れ制御弁28を制御し、冨に一定水量が冷却ロールへと
流れていくようになる。
On the other hand, there is a flow rate detector 26 at the discharge port of -n/, and its detection signal is transmitted to a flow rate controller 27, compared with a set value, and controls a control valve 28, so that a constant amount of water is sent to the cooling roll. It starts to flow.

このようなシステムで冷却ロール嵌面抹常に一定に制御
することが出来、良質な薄帯板の有利な大量生産が可能
となる。
With such a system, the cooling roll fitting surface can be controlled to be constant, and advantageous mass production of high quality thin strips is possible.

なお、夷−例として上述のシステムを例にと9説明した
が要社−足水量の冷却水の水温をKl!、することによ
〉冷却ロールの表面温度を常に一足に保つことが本発明
の骨子であシ、他の追歯な方法を用いても冷却水温を制
御することによシ同一の効果が得られれば良いことは明
らかである。
It should be noted that although the above-mentioned system was explained as an example, the water temperature of the cooling water of the amount of water is Kl! The main point of the present invention is to always maintain the surface temperature of the cooling roll at a constant level, and the same effect can be obtained by controlling the cooling water temperature using other additional methods. It is clear that it would be better if

【図面の簡単な説明】[Brief explanation of drawings]

第1図は溶融金属急冷却法による金属薄帯板の製造態様
例を示す!1!明図、第2図は本発明の実施態様例の説
明図である。 l・・・溶解炉、     2・・・溶融金属、3・−
ストツノや−14・・・導管、
Figure 1 shows an example of how a thin metal strip is manufactured using the molten metal rapid cooling method! 1! The clear drawings and FIG. 2 are explanatory diagrams of embodiments of the present invention. l...melting furnace, 2...molten metal, 3.-
Stotsunoya-14... conduit,

Claims (1)

【特許請求の範囲】[Claims] 1I111111金属急冷法によシ薄帯板を製造するに
際しそO調造用冷却−一ルの表面温度を針側し、同ロー
kIQ冷却設定値と実測値を比較し、その温度偏差に基
づ龜ロール内へ供給する冷却水温を制御することを特徴
とする溶融金属急冷法による薄帯板製造用冷却ロールの
表面温度制御法。
1I111111 When manufacturing a thin strip plate by the metal quenching method, the surface temperature of the cooling unit for SO preparation is set to the needle side, the same low kIQ cooling set value and the actual measured value are compared, and based on the temperature deviation. A method for controlling the surface temperature of a cooling roll for manufacturing a thin strip plate using a molten metal quenching method, which is characterized by controlling the temperature of cooling water supplied into the head roll.
JP12052581A 1981-07-31 1981-07-31 Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal Pending JPS5823546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12052581A JPS5823546A (en) 1981-07-31 1981-07-31 Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12052581A JPS5823546A (en) 1981-07-31 1981-07-31 Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal

Publications (1)

Publication Number Publication Date
JPS5823546A true JPS5823546A (en) 1983-02-12

Family

ID=14788411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12052581A Pending JPS5823546A (en) 1981-07-31 1981-07-31 Controlling method for surface temperature of cooling roll for production of thin strip by quick cooling method for molten metal

Country Status (1)

Country Link
JP (1) JPS5823546A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674556A (en) * 1985-07-06 1987-06-23 Hitachi Zosen Corporation Method and device for controlling thin metallic strip continuous casting apparatus
JPS63260653A (en) * 1987-04-16 1988-10-27 Kawasaki Steel Corp Method for controlling roll temperature in continuous casting machine
US6588493B1 (en) 2001-12-21 2003-07-08 Nucor Corporation Model-based system for determining casting roll operating temperature in a thin strip casting process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674556A (en) * 1985-07-06 1987-06-23 Hitachi Zosen Corporation Method and device for controlling thin metallic strip continuous casting apparatus
JPS63260653A (en) * 1987-04-16 1988-10-27 Kawasaki Steel Corp Method for controlling roll temperature in continuous casting machine
US6588493B1 (en) 2001-12-21 2003-07-08 Nucor Corporation Model-based system for determining casting roll operating temperature in a thin strip casting process
WO2003055623A1 (en) * 2001-12-21 2003-07-10 Nucor Corporation Model-based system for determining casting roll operating temperature in a thin strip casting process
US6755234B2 (en) 2001-12-21 2004-06-29 Nucor Corporation Model-based system for determining casting roll operating temperature in a thin strip casting process
AU2002350286B2 (en) * 2001-12-21 2009-04-23 Nucor Corporation Model-based system for determining casting roll operating temperature in a thin strip casting process

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