JPH03211233A - Heating furnace - Google Patents
Heating furnaceInfo
- Publication number
- JPH03211233A JPH03211233A JP489690A JP489690A JPH03211233A JP H03211233 A JPH03211233 A JP H03211233A JP 489690 A JP489690 A JP 489690A JP 489690 A JP489690 A JP 489690A JP H03211233 A JPH03211233 A JP H03211233A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- billet
- heat retention
- heat
- temp
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- 238000002791 soaking Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000002407 reforming Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、圧延材（以下、説明の便宜上、−例としてビ
レットと言う）を加熱して圧延機列へ供給する加熱炉に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a heating furnace that heats a rolled material (hereinafter referred to as billet for convenience of explanation) and supplies it to a row of rolling mills.
（従来技術）
ビレットを加熱して圧延機へ供給するために、ウオーキ
ングビーム型加熱炉（以下、ＷＢ型加熱炉と言う）、ウ
オーキングハース型加熱炉（以下、ＷＨ型加熱炉と言う
）、ＷＢ型加熱炉とＷＨ型加熱炉を組合わせた方式の加
熱炉、ブツシャ−式加熱炉等が使用または提案されてい
ることは、具体的に刊行物を引用するまでもなく公知で
ある。(Prior art) In order to heat the billet and supply it to the rolling mill, a walking beam type heating furnace (hereinafter referred to as WB type heating furnace), a walking hearth type heating furnace (hereinafter referred to as WH type heating furnace), WB type heating furnace, etc. It is well known that a heating furnace that combines a type heating furnace and a WH type heating furnace, a busher type heating furnace, etc. are used or proposed, without citing specific publications.
これら加熱炉には、設備費、ランニングコスト、加熱し
たビレットの品質、その他操業技術面において一長一短
があり、炉の設置に際してはそれぞれを総合検討して採
用の可否を決めている。These heating furnaces have advantages and disadvantages in terms of equipment costs, running costs, quality of heated billets, and other operational techniques, and when installing a furnace, each is comprehensively considered to decide whether to adopt it or not.
しかし、今日程まで商品の高級化がシビャーに要求され
なかったことが要因の一つと考えられるが、現状におけ
る加熱炉ではビレットの温度低下や、断面方向と長手方
向の温度バラツキを著しく改善できず、そのため、例え
ば熱処理組織のムラが発生し、機械的性質のバラツキ要
因となることが開局になることがある。However, one of the reasons may be that there has not been a severe demand for higher quality products until now, but with the current heating furnaces, it is not possible to significantly improve the temperature drop of the billet or the temperature variation in the cross-sectional direction and longitudinal direction. Therefore, for example, unevenness may occur in the heat-treated structure, which may cause variations in mechanical properties.
従ってこのような品質改善のために改良された加熱炉の
開発が望まれている。Therefore, it is desired to develop an improved heating furnace for improving quality.
（発明が解決すべき課題）
本発明はかかる現状に鑑み、
（１） ビレットの温度が粗圧延機に供給されるまで
著しい温度低下を防止できること、
（２） ビレットの熱拡散を促進し、断面方向および
長手方向で表面と内部の温度バラツキを解消できること
、
（３） ビレットの表面に発生している一部スケール
を、ビレットの温度が低下しないように除去して、圧延
工程での表面疵発生を抑制または防止できること、
（４） ビレットの保熱温度次第（例えば１２００℃
以上）では、非金属介在物の改質を図り、塑性加工上無
害化し、内部品質を良くてきることを目的とする加熱炉
を提供すること１＝＆る。(Problems to be Solved by the Invention) In view of the current situation, the present invention aims to (1) prevent a significant temperature drop in the billet until it is supplied to the rough rolling mill, (2) promote thermal diffusion of the billet, and (3) Part of the scale on the surface of the billet is removed to prevent the temperature of the billet from decreasing, thereby preventing surface flaws from occurring during the rolling process. (4) Depending on the billet heat retention temperature (e.g. 1200℃)
In the above, an object of the present invention is to provide a heating furnace for the purpose of modifying non-metallic inclusions, rendering them harmless during plastic processing, and improving internal quality.
（課題を解決するだめの手段）
本発明は、上記の目的を達成するため、次の構成を要旨
とする。すなわち、本発明の加熱炉は、（１）粗圧延機
の入口近傍と、加熱炉の均熱帯の抽８０との間に、被加
熱材移送手段を包囲すると共に、保温手段を有する保熱
炉を設け、且つ該保熱炉の一部をデスケーリング装置と
取り替え自在に構成したことを特徴とするものであり、
（２）前記保熱炉には、その一部に保熱炉の幅方向へ移
動自在な台車を設け、且つ該台車に保熱炉の一部と、デ
スケーリング装置とを載置し、保熱炉の一部とデスケー
リング装置とをシフト自在に構成したこと、
（３）前記移動自在な台車上の保熱炉の一部とデスケー
リング装置の長手方向の両端面は、据付けている保熱炉
の長手方向の端面と面接触すること、
（４）移動自在な台車は、保熱炉の被加熱材移送手段の
高速区域に設けること、
をそれぞれ特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration as a gist. That is, the heating furnace of the present invention includes (1) a heat retention furnace that surrounds a means for transferring the material to be heated and has a heat retention means between the vicinity of the inlet of the rough rolling mill and the drawing 80 of the soaking zone of the heating furnace; and a part of the heat retention furnace is configured to be freely replaceable with a descaling device,
(2) A part of the heat retention furnace is provided with a trolley that is movable in the width direction of the heat retention furnace, and a part of the heat retention furnace and a descaling device are placed on the trolley. (3) The part of the heat-retention furnace and the descaling device on the movable trolley are configured to be freely shiftable; (4) The movable cart is provided in a high-speed area of the heated material transfer means of the heat retention furnace.
従って本発明加熱炉においては、均熱状態に加熱したビ
レットの表面に発生している一部スケールを、ビレット
の温度が低下しない状態で除去しつつ、保熱炉で所定時
間に保熱（場合によっては加熱）し、ビレットの断面方
向および長手方向での温度差をなくし、場合によっては
１２００℃以上の温度に加熱して非金属介在物を改質し
、無言化して圧延機列に供給することができる。Therefore, in the heating furnace of the present invention, part of the scale generated on the surface of the billet that has been heated to a uniform temperature is removed without the temperature of the billet decreasing, and the heating furnace is heated for a predetermined time (if necessary). In some cases, the billet is heated) to eliminate the temperature difference in the cross-sectional and longitudinal directions of the billet, and in some cases, it is heated to a temperature of 1200°C or higher to modify non-metallic inclusions, make them silent, and then feed the billet to the rolling mill row. be able to.
これによって、ビレットの表面に付着する一部スケール
は除去し、ビレットを均一温度にして圧延機列に供給で
きるから、疵発生のない、均一な機械的性質を有する製
品をうろことができる。As a result, part of the scale adhering to the surface of the billet can be removed and the billet can be heated to a uniform temperature and supplied to the rolling mill row, so that a product with no defects and uniform mechanical properties can be produced.
以下、本発明を複数コースで線材を圧延する例を図に示
す実施例に基づき説明する。EMBODIMENT OF THE INVENTION Hereinafter, the present invention will be explained based on an embodiment shown in the drawings, in which a wire rod is rolled in a plurality of courses.
第１図は、本発明の加熱炉を設けた線材圧延工場の平面
図で、図中１は加熱炉、２は保熱炉、３はシフト台車、
４はピンチロール、５は粗圧延機、６は中間圧延機列、
７は仕上げ圧延機列、８は直接熱処理装置、９は緩速冷
却装置、ｌＯはビレット払い出し装置、１１はビレット
台である。FIG. 1 is a plan view of a wire rod rolling factory equipped with a heating furnace of the present invention, in which 1 is a heating furnace, 2 is a heat retention furnace, 3 is a shift cart,
4 is a pinch roll, 5 is a rough rolling mill, 6 is an intermediate rolling mill row,
7 is a finishing rolling mill row, 8 is a direct heat treatment device, 9 is a slow cooling device, IO is a billet payout device, and 11 is a billet stand.
第２図は第１図のＡ−Ａ’矢視挽回あるが、本発明に係
わる加熱炉１の具体的構成がわかる。Although FIG. 2 is taken along the line A-A' in FIG. 1, the specific configuration of the heating furnace 1 according to the present invention can be seen.
すなわち、粗圧延機５の入口近傍、つまり図示例ではピ
ンチロール４と、均熱帯１２の抽出口１３との間に、保
熱炉２を設けることを構成上必須とする。そして好まし
くは、抽出口１３と保熱炉２の接続箇所に扉Ｉ４を設け
ると、保熱炉２と均熱帯Ｉ２の炉況を害することなく安
定した炉況を維持できる。That is, it is structurally essential to provide the heat retention furnace 2 near the entrance of the rough rolling mill 5, that is, in the illustrated example, between the pinch rolls 4 and the extraction port 13 of the soaking zone 12. Preferably, if a door I4 is provided at the connection point between the extraction port 13 and the heat retention furnace 2, stable furnace conditions can be maintained without damaging the furnace conditions of the heat retention furnace 2 and the soaking zone I2.
保熱炉２は、第２図、第３図に示すとおり被加熱材移送
手段、すなわち図示例の場合にはＶ溝付きのローラー１
５から成るローラーテーブル１６を包囲して設けている
。As shown in FIGS. 2 and 3, the heat retention furnace 2 includes a heating material transfer means, that is, a V-grooved roller 1 in the illustrated example.
A roller table 16 consisting of 5 is provided surrounding the roller table 16.
このローラーテーブル１６を中心にして、その上下に保
温手段１７、すなわち図示例では重油バーナを設けてい
る。従って保熱炉２は、目的によって例えば、ビレット
の介在物を改質して低融点化するときには、１２００℃
以上にビレットを加熱できるようにすることもできる。A heat retaining means 17, that is, a heavy oil burner in the illustrated example, is provided above and below this roller table 16. Therefore, depending on the purpose, for example, when modifying billet inclusions to lower the melting point, the heat retention furnace 2 may be heated to 1200°C.
It is also possible to heat the billet to a higher temperature.
また保熱炉２は、第２図に示すとおり、ビレット３３の
温度低下をきたさない箇所に、保熱炉２の一部をデスケ
ーリング装置１８と取り替え自在に構成している。Further, as shown in FIG. 2, the heat retention furnace 2 is configured such that a part of the heat retention furnace 2 can be replaced with a descaling device 18 at a location where the temperature of the billet 33 does not decrease.
第３図に第２図Ｙ部の構成を拡大図示している。FIG. 3 shows an enlarged view of the structure of section Y in FIG.
すなわち、保熱炉２の幅方向へ移動０在な台車１９を設
け、該台車１９に保熱炉２の一部２′とデスケーリング
装置２０を載置し、これらをシフト自在な構成としてい
る。第３図において２１は水配管、２２はノズル、２３
はスケールシュート、２４はスケール排出樋、２５は台
車１９の移動用の駆動装置、２６はスプロケットホイー
ル、２７はレール、２８は車輪、２９は架台である。That is, a trolley 19 that can be moved in the width direction of the heat retention furnace 2 is provided, and a part 2' of the heat retention furnace 2 and the descaling device 20 are placed on the trolley 19, so that these can be freely shifted. . In Fig. 3, 21 is a water pipe, 22 is a nozzle, and 23 is a water pipe.
24 is a scale chute, 24 is a scale discharge gutter, 25 is a drive device for moving the trolley 19, 26 is a sprocket wheel, 27 is a rail, 28 is a wheel, and 29 is a mount.
第４図に第３図のＢ−Ｂ’矢視挽回示すが、駆動装置２
５の作用でチェノ３０を介して、車輪２８を回転させて
台車１９を保熱炉２の幅方向へ移動させる。FIG. 4 shows the view from the arrow B-B' in FIG. 3, and the drive device 2
5, the wheel 28 is rotated through the cheno 30 to move the cart 19 in the width direction of the heat retention furnace 2.
同図示例は、丁度、台車１９に載置したシフト自在な保
熱炉の一部２′が、固定している保熱炉２に位置してい
る状態を示す。尚同図の一点鎖線は、保熱炉の一部２′
とデスケーリング装置２０をシフトし、保熱炉２の位置
にデスケーリング装置２０が移動したときの状態を示す
。The illustrated example shows a state in which a part 2' of a freely shiftable heat retention furnace placed on a cart 19 is located in the fixed heat retention furnace 2. The dashed-dotted line in the same figure indicates part 2' of the heat retention furnace.
The state when the descaling device 20 is shifted and moved to the position of the heat retention furnace 2 is shown.
このように固定している保熱炉２の空間状態を呈する幅
方向にシフトしても、第５図にシフト途中の拡大を示す
とおり、固定する保熱炉２の端面３１とシフトするデス
ケーリング装置１８および保熱炉の一部２′の端面３２
は面接触するので、気密性は保持できるので、均熱帯１
２や保熱炉２の炉況を害することはない。Even if the space state of the heat retention furnace 2 is shifted in the width direction, as shown in FIG. End face 32 of device 18 and part 2' of the holding furnace
Since there is surface contact, airtightness can be maintained, so soaking zone 1
2 or the furnace condition of the heat retention furnace 2.
このデスケーリング装置１８が位置するローラーテーブ
ル１６は、保熱炉２の略中央より出口側（粗圧延機５側
）のローラーテーブル１６よりもスピードが速いので、
ノズル２２から噴射する水とビレットの接触時間は瞬間
的に近い状態になるから、ビレットの表面温度を降下さ
せることはない。このような構成の本発明に係る加熱炉
は、次の通り作用する。The roller table 16 on which this descaling device 18 is located has a faster speed than the roller table 16 on the exit side (roughing mill 5 side) from the approximate center of the heat retention furnace 2.
Since the contact time between the water injected from the nozzle 22 and the billet is almost instantaneous, the surface temperature of the billet does not drop. The heating furnace according to the present invention having such a configuration operates as follows.
均熱帯１２で１０８０〜１１００℃に均一加熱したビレ
ット３３を、扉１４を開いて被加熱材移送手段、すなわ
ちローラーテーブル１６で保熱炉２へ導く。ビレット３
３が均熱帯１２から出ると扉１４は閉じて均熱帯１２の
炉況を維持する。The billet 33 uniformly heated to 1080 to 1100° C. in the soaking zone 12 is guided to the heat retention furnace 2 by opening the door 14 and using a heated material transfer means, that is, a roller table 16. billet 3
3 leaves the soaking zone 12, the door 14 is closed to maintain the furnace condition in the soaking zone 12.
保熱炉２では目的に応じて１０７０〜１０９０℃の範囲
内でビレット３３の温度を維持する。保熱炉２の炉内温
度と在炉時間によってはビレット３３の断面方向と長手
方向の温度バラツキを解消できるので、圧延時の塑性変
形も良くなり、品質改善に寄与する。さらに保熱炉２は
、圧延機列の圧延事情によってはビレット３３を一時的
に待機させることもでき、この待機時間中は、ビレット
３３の温度も所定温度に維持できる。In the heat retention furnace 2, the temperature of the billet 33 is maintained within the range of 1070 to 1090°C depending on the purpose. Depending on the temperature inside the heat retention furnace 2 and the time in the furnace, it is possible to eliminate temperature variations in the cross-sectional direction and longitudinal direction of the billet 33, which improves plastic deformation during rolling, contributing to quality improvement. Furthermore, the heat retention furnace 2 can temporarily hold the billet 33 depending on the rolling conditions of the rolling mill row, and during this waiting time, the temperature of the billet 33 can also be maintained at a predetermined temperature.
さてビレット３３が、−次スケールの除去を必要とする
際には、台車１９を保熱炉２の幅方向へ移動してデスケ
ーリング装置１８とシフトする。これによって高圧水が
配管２１からノズル２２を経て噴射し、ビレット３３の
一部スケールを除去しつつ保熱炉２内で所定温度に保熱
し、粗圧延機５へ、ピンチロール４により誘導して供給
する。Now, when the billet 33 requires removal of -order scale, the cart 19 is moved in the width direction of the heat retention furnace 2 and shifted to the descaling device 18. As a result, high-pressure water is injected from the piping 21 through the nozzle 22, removes some scale from the billet 33, retains it at a predetermined temperature in the heat retention furnace 2, and is guided to the rough rolling mill 5 by the pinch rolls 4. supply
以下、このようなデスケーリング装置１８と、保熱炉２
の一部２′とのシフトは、ビレット３３の圧延目的によ
って（生産計画によって）行うものである。Hereinafter, such a descaling device 18 and a heat retention furnace 2 will be explained.
The shift with part 2' is performed depending on the purpose of rolling the billet 33 (depending on the production plan).
次に本発明の実施例を示す。Next, examples of the present invention will be shown.
月産４万トンの線材圧延工場において、第１図から第５
図に示す加熱炉を用いて試験した。試験条件は第１表に
示す通りでありその結果を第２表に示した。At a wire rod rolling mill with a monthly production capacity of 40,000 tons,
The test was conducted using the heating furnace shown in the figure. The test conditions were as shown in Table 1, and the results are shown in Table 2.
本発明は、デスケーリング装置■８の効果を確認するた
めの試験で、比較例（１）に比較して、線材の品質、特
に表面疵が優れていることが分かる。The present invention was tested to confirm the effectiveness of the descaling device (1)8, and it was found that the quality of the wire, especially surface flaws, was superior compared to Comparative Example (1).
これは、デスケーリング装置１８により、ビレット３３
の表面に付着している一次スケールを除去できたことに
よる。比較例（１）はデスケーリング装置１８を使用し
ないで、保熱炉２で保熱したままであるから、ビレット
３３の表面に付着する一次スケールは除去できないので
、線材品質、特に表面疵が本発明の場合よりも１０倍程
度発生していることが分かる。This is done by the descaling device 18, and the billet 33
This is because the primary scale adhering to the surface was removed. In Comparative Example (1), the descaling device 18 is not used and the heat is retained in the heat retention furnace 2, so the primary scale adhering to the surface of the billet 33 cannot be removed. It can be seen that this occurs about 10 times more than in the case of inventions.
一方、比較例（２）では、デスケーリング装置を粗圧延
機前に設置しており、圧延機の通過速度が遅くその分圧
延機温度降下が大きく、機械的性質のバラツキ発生率も
大きくなっている。On the other hand, in Comparative Example (2), the descaling device was installed in front of the rough rolling mill, and the passing speed of the rolling mill was slow, resulting in a large temperature drop in the rolling mill, and the occurrence of variations in mechanical properties was also large. There is.
（発明の効果）
以上に説明した本発明は、次に列挙するような特有な効
果を奏することができ、工業的価値は極めて大きい。(Effects of the Invention) The present invention described above can produce the following unique effects, and has extremely great industrial value.
すなわち、
（１） ビレットを所定温度範囲内に保持しつつ圧延
工程へ安定供給できる。That is, (1) The billet can be stably supplied to the rolling process while being maintained within a predetermined temperature range.
（２） ビレットの熱拡散を促進し、断面方向および
長手方向で、表面と内部の温度バラツキを解消できる。(2) It promotes thermal diffusion of the billet and eliminates temperature variations between the surface and inside in the cross-sectional and longitudinal directions.
（３） ビレットの表面に発生している一次スケール
をビレットの温度か低下しないように除去し、圧延工程
での表面疵発生を抑制または防止することができる。(3) The primary scale generated on the surface of the billet can be removed without lowering the temperature of the billet, thereby suppressing or preventing the occurrence of surface flaws during the rolling process.
（４） ビレットの保熱温度次第では、ビレットの非
金属介在物の改質を図ることができ、塑性加工において
無害化でき品質を良くできる。(4) Depending on the heat retention temperature of the billet, nonmetallic inclusions in the billet can be modified, rendered harmless during plastic working, and improved in quality.
図面は本発明に係る一実施例であって第１図は、線材圧
延工場に設けた平面図、第２図は、第１図のＡ−Ａ’矢
視挽回第３図は第２図の要部Ｙを拡大示する斜視図、第
４図は第３図のＢ−Ｂ’矢視挽回第５図は第３図の要部
拡大斜視図、である。
１・・・加熱炉 ２・・・保熱炉３・・・
シフト台車 ４・・・ピンチロール５・・・粗
圧延機 ６・・・中間圧延機列７・・・仕上
圧延機列 ８・・・直接熱処理装置９・・緩速冷
却装置 １０・・・払い出し装置１１・・・ビレ
ット台 １２・・均熱帯１３・・・抽出口
１４・・・扉１５・・・Ｖ溝付きのローラー
１６・・・ローラーテーブル ■７・・・重油バーナ
１８・・・デスケーリング装置 １９・・・移動自在な
台車２０・・・デスケーリング装置
２１・・・水配管 ２２・・・ノズル２３
・・・スケールシュート２４・・・スケール排出樋２５
・・・台車の移動用の駆動装置
２６・・・スプロケットホイール
２７・・・レール ２８・・・車 輪２９・
・・架 台 ３ｏ・・・チェン３１・・・
固定する保熱炉２の端面
３２・・・シフトするデスケーリング装置１８及び保熱
炉の一部の端面
３３・・・ビレット
復代理人 弁理士 田村弘明
第３図
第４図
第
図The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of a wire rod rolling factory, and FIG. FIG. 4 is an enlarged perspective view of the main part Y, and FIG. 5 is an enlarged perspective view of the main part of FIG. 3 taken along the line B-B' in FIG. 1... Heating furnace 2... Heat retention furnace 3...
Shift cart 4... Pinch roll 5... Rough rolling mill 6... Intermediate rolling mill row 7... Finishing rolling mill row 8... Direct heat treatment device 9... Slow cooling device 10... Unloading Equipment 11... Billet table 12... Soaking zone 13... Extraction port
14... Door 15... V-grooved roller 16... Roller table ■7... Heavy oil burner 18... Descaling device 19... Freely movable trolley 20... Descaling device 21 ...Water piping 22...Nozzle 23
... Scale chute 24 ... Scale discharge gutter 25
... Drive device for moving the trolley 26 ... Sprocket wheel 27 ... Rail 28 ... Wheel 29 ...
... Frame 3o... Chain 31...
End face 32 of the heat retention furnace 2 to be fixed... Descaling device 18 to be shifted and end face 33 of a part of the heat retention furnace... Billet sub-agent Patent attorney Hiroaki Tamura Figure 3 Figure 4 Figure
Claims (4)
との間に、被加熱材移送手段を包囲すると共に、保温手
段を有する保熱炉を設け、且つ該保熱炉の一部をデスケ
ーリング装置と取り替え自在に構成したことを特徴とす
る、加熱炉。(1) A heat retention furnace that surrounds the heated material transfer means and has heat retention means is provided between the vicinity of the inlet of the rough rolling mill and the extraction port of the soaking zone of the heating furnace; A heating furnace characterized in that a part thereof can be freely replaced with a descaling device.
且つ該台車に、保熱炉の一部と、デスケーリング装置と
を載置し、保熱炉の一部とデスケーリング装置とをシフ
ト自在に構成したことを特徴とする、請求項（１）記載
の加熱炉。(2) Install a cart that can move freely in the width direction of a part of the heat retention furnace,
Claim (1) further characterized in that a part of the heat retention furnace and a descaling device are mounted on the trolley, and the part of the heat retention furnace and the descaling device are configured to be freely shiftable. The heating furnace described.
の長手方向の両端面は、据付けている保熱炉の長手方向
の端面と面接触することを特徴とする、請求項（１）及
び（２）記載の加熱炉。(3) A portion of the movable heat retention furnace and both longitudinal end surfaces of the descaling device are in surface contact with the longitudinal end surfaces of the installed heat retention furnace, as claimed in claim (1). ) and (2).
の高速区間に設けることを特徴とする、請求項（１）乃
至（３）記載の加熱炉。(4) The heating furnace according to any one of claims (1) to (3), wherein the movable cart is provided in a high-speed section of the heating material transfer means in the heat retention furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489690A JPH03211233A (en) | 1990-01-12 | 1990-01-12 | Heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489690A JPH03211233A (en) | 1990-01-12 | 1990-01-12 | Heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03211233A true JPH03211233A (en) | 1991-09-17 |
Family
ID=11596434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP489690A Pending JPH03211233A (en) | 1990-01-12 | 1990-01-12 | Heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03211233A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006021263A1 (en) * | 2004-08-24 | 2006-03-02 | Sms Demag Ag | Method and device for producing metal strips |
| CN101892378A (en) * | 2010-06-29 | 2010-11-24 | 莱芜钢铁集团有限公司 | Heating method suitable for semi-tandem rolling and hot rolling of wide strip steel |
| CN104561515A (en) * | 2015-01-26 | 2015-04-29 | 河北星烁锯业股份有限公司 | Continuous plate blank heating furnace and heating method thereof |
-
1990
- 1990-01-12 JP JP489690A patent/JPH03211233A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006021263A1 (en) * | 2004-08-24 | 2006-03-02 | Sms Demag Ag | Method and device for producing metal strips |
| JP2008510623A (en) * | 2004-08-24 | 2008-04-10 | エス・エム・エス・デマーク・アクチエンゲゼルシャフト | Method and apparatus for producing metal strip |
| US7357011B2 (en) | 2004-08-24 | 2008-04-15 | Sms Demag Ag | Method and apparatus for manufacturing metal strips |
| CN101892378A (en) * | 2010-06-29 | 2010-11-24 | 莱芜钢铁集团有限公司 | Heating method suitable for semi-tandem rolling and hot rolling of wide strip steel |
| CN104561515A (en) * | 2015-01-26 | 2015-04-29 | 河北星烁锯业股份有限公司 | Continuous plate blank heating furnace and heating method thereof |
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