JP2005324244A - Heat insulating roll - Google Patents

Heat insulating roll Download PDF

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Publication number
JP2005324244A
JP2005324244A JP2004146478A JP2004146478A JP2005324244A JP 2005324244 A JP2005324244 A JP 2005324244A JP 2004146478 A JP2004146478 A JP 2004146478A JP 2004146478 A JP2004146478 A JP 2004146478A JP 2005324244 A JP2005324244 A JP 2005324244A
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Japan
Prior art keywords
heat
resistant ring
resistant
metal cylinder
cylinder shaft
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JP2004146478A
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Japanese (ja)
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Hwa Ung Song
和雄 宋
Kanji Hirakuri
寛治 平栗
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DAEHAN DONGBANG CO Ltd
Ask Technica Corp
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DAEHAN DONGBANG CO Ltd
Ask Technica Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating roll which has excellent response for the thermal expansion/contraction due to a temperature change by merely fitting heat resistive rings and disks on a metallic cylindrical shaft without welding them. <P>SOLUTION: The heat insulating roll is configured such that a plurality of the heat resistive rings (2) are mounted between a fixed flange (5) and a movable flange (6) arranged on the outside periphery of the metallic cylindrical shaft (1) at a required interval in the axial direction, and a plurality of disks (7) are laminated between the respective heat resistive rings (2). In this case, the respective heat resistive rings (2) and the respective disks (7) are not welded to the metallic cylindrical shaft (1). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、断熱ロールに関し、特に、熱伝導が小さく炉雰囲気温度を下げることなく、かつ、炉の運転・停止に伴う温度変化による熱膨張・収縮に追随性の優れるようにするための新規な改良に関する。   The present invention relates to a heat insulating roll, and in particular, has a low heat conduction and does not lower the furnace atmosphere temperature, and is a novel for making it excellent in thermal expansion / contraction due to a temperature change accompanying operation / stop of the furnace. Regarding improvement.

従来、断熱ロールとしては、熱間圧延前の鋼片（スラブ）の予熱炉の炉内搬送ロールがあり、その中で１例を示すと、特許文献としては開示されていないが、このロールは図７に示す様に水冷の金属筒軸１に鋼片荷重を支える複数の耐熱リング２を溶接し、リング溶接部以外の金属筒軸１表面は耐熱鋼の鋲（スタッド）３を溶接した後、耐熱モルタル４にてコーティングし断熱施工された断熱ロール６Ａが使用されていた。   Conventionally, as the heat insulating roll, there is an in-furnace transport roll of a preheating furnace for a steel slab (slab) before hot rolling, and one example of the roll is not disclosed as patent literature, but this roll is As shown in FIG. 7, a plurality of heat-resistant rings 2 that support a slab load are welded to a water-cooled metal cylinder shaft 1, and the surface of the metal cylinder shaft 1 other than the ring welded portion is welded with a heat-resistant steel stud 3. Insulating roll 6A coated with heat-resistant mortar 4 and heat-insulated was used.

従来の断熱ロールは、以上のように構成されていたため、次のような課題が存在していた。
すなわち、従来の断熱ロールは金属筒軸に直接耐熱鋼製リングを溶接するため、水冷の金属筒軸への熱の逃げが大きく炉雰囲気温度の低下または燃費の上昇を招くことになっていた。
又、耐熱リングの炉内表面部温度と水冷の金属筒軸溶接部との温度勾配が大きく、大きい熱応力が発生し、毎々溶接部からの耐熱リングまたは金属筒軸の割れが発生し、ロール交換のため、炉の運転を止めなければならなかった。
又、耐熱モルタルのコーティング施工による断熱構造のため、モルタルの乾燥・硬化時の収縮、運転加熱時の熱収縮により耐熱リングとモルタルの境界面に隙間が発生、隙間より直接水冷金属軸への熱の侵入が発生し、燃費の上昇を招くと共に金属筒軸の劣化を招きロール寿命の短期化を併発していた。
又、耐熱モルタル自身も炉の運転・停止に伴うヒートサイクルにより剥がれが発生し易く、３〜４ヶ月おきにモルタルの更新修理が必要であった。 Since the conventional heat insulation roll was comprised as mentioned above, the following subjects existed.
That is, since the conventional heat insulating roll welds a heat-resistant steel ring directly to the metal cylinder shaft, heat escape to the water-cooled metal cylinder shaft is large, leading to a decrease in furnace atmosphere temperature or an increase in fuel consumption.
In addition, there is a large temperature gradient between the temperature inside the furnace surface of the heat-resistant ring and the water-cooled metal tube shaft welded part, and a large thermal stress is generated. The furnace had to be shut down for replacement.
In addition, because of the heat insulation structure by coating with heat-resistant mortar, a gap is generated at the interface between the heat-resistant ring and the mortar due to shrinkage during drying / curing of the mortar and heat shrinkage during operation heating, and heat from the gap directly to the water-cooled metal shaft. Intrusion occurs, resulting in an increase in fuel consumption and deterioration of the metal cylinder shaft, resulting in shortening of the roll life.
In addition, the heat-resistant mortar itself was easily peeled off by the heat cycle accompanying the operation / stop of the furnace, and the mortar had to be repaired every 3 to 4 months.

本発明による断熱ロールは、冷却水を通過させる貫通孔を有する金属筒軸の外周の固定フランジと移動フランジ間に複数の耐熱リングを所定間隔で軸方向に嵌装し、前記各耐熱リング間に複数のディスクを積層させ、前記各耐熱リング及び各ディスクは前記金属筒軸に対して非溶接状態にした構成であり、また、前記耐熱リングは、互いに径が異なる複数の耐熱リング部が同軸配置されている構成であり、また、前記各耐熱リングは、各耐熱リングの接合部に設けられた一対の固定輪状板と、前記各固定輪状板を締結するため軸方向に設けられた固定皿ネジとによって固定されている構成であり、また、前記耐熱リングは、前記金属筒軸の外周に形成された金属筒軸キー溝と、前記耐熱リングの内周に形成されたキー溝と、前記金属筒軸キー溝及びキー溝に係合するキーによって前記金属筒軸に固定されている構成であり、また、前記耐熱リングは、一部又は全部がセラミックよりなる構成であり、また、前記各耐熱リング部は、外側の耐熱リング部がニッケル・コバルト又はステンレスよりなり、内側の耐熱リング部がセラミックよりなる構成である。   In the heat insulating roll according to the present invention, a plurality of heat-resistant rings are fitted in the axial direction at a predetermined interval between a fixed flange and a moving flange on the outer periphery of a metal cylinder shaft having a through hole through which cooling water passes, and between the heat-resistant rings. A plurality of disks are stacked, and each heat-resistant ring and each disk are in a non-welded state with respect to the metal cylinder shaft, and the heat-resistant ring has a plurality of heat-resistant ring portions having different diameters arranged coaxially. And each heat-resistant ring includes a pair of fixed ring-shaped plates provided at a joint portion of each heat-resistant ring, and a fixed countersunk screw provided in an axial direction for fastening the fixed ring-shaped plates. And the heat-resistant ring includes a metal cylinder shaft keyway formed on an outer periphery of the metal cylinder shaft, a key groove formed on an inner periphery of the heat-resistant ring, and the metal Cylinder key And a key that engages with the keyway is fixed to the metal cylinder shaft, and the heat-resistant ring is configured to be partially or entirely made of ceramic. The outer heat-resistant ring portion is made of nickel / cobalt or stainless steel, and the inner heat-resistant ring portion is made of ceramic.

本発明による断熱ロールは、以上のように構成されているため、次のような効果を得ることができる。
すなわち、本発明の断熱ロールにあっては、ロール外表部を形成している耐熱リングは耐熱摩耗性及び耐熱耐衝撃性に優れ、熱間での鋼片（スラブ）搬送時に発生する、荷重に耐えると共に摩耗及び衝撃に耐えられるものであり、かつ耐熱リングを嵌め合い構造にすることにより水冷の金属筒軸への熱伝導による熱の逃げを小さくすることができ、熱応力による耐熱リング及び金属筒軸の割れの防止がはかれる。又、実施例２の耐熱リングを大径と小径に分割することにより、より熱伝導を小さくできると共に、高価なニッケル・コバルト系耐熱鋼のみで製作するリングよりＳＵＳ３１０Ｓを使用することによりコストを押さえることができる。
更に、耐熱セラミックリングを使用することにより、さらに熱伝導による熱の逃げの防止がはかれる。
又、断熱部分に無機質材等のディスクを使用することにより、ディスクのクッション性により、耐熱リングと断熱ディスク境界面に隙間及びクラックの発生が無く、直接水冷金属筒軸への熱の流入を防止できる。また、実施例１の断熱ロールを試験後ディスクを押さえているナットを緩めると無機質材ディスク部が１５ｍｍ（２５％）軸方向に復元し、ニッケル・コバルト系耐熱鋼リングの軸方向の熱膨張量（リング全体が１２００℃に成った場合の計算量；線膨張率１７.８×１０−６）１.５ｍｍを十分吸収することができ隙間の発生防止がはかれた。 Since the heat insulation roll by this invention is comprised as mentioned above, the following effects can be acquired.
That is, in the heat insulating roll of the present invention, the heat-resistant ring forming the outer surface portion of the roll is excellent in heat-resistant wear resistance and heat-resistant shock resistance, and is applied to a load generated during hot slab transportation. It can withstand wear and impact, and it can withstand heat and impact, and by fitting the heat-resistant ring, heat escape due to heat conduction to the water-cooled metal cylinder shaft can be reduced. Prevents the cylinder shaft from cracking. Further, by dividing the heat-resistant ring of Example 2 into a large diameter and a small diameter, the heat conduction can be further reduced, and the cost can be reduced by using SUS310S rather than a ring made only of expensive nickel-cobalt heat-resistant steel. be able to.
Furthermore, by using a heat-resistant ceramic ring, it is possible to further prevent escape of heat due to heat conduction.
In addition, the use of a disk made of an inorganic material or the like for the heat insulating part prevents the flow of heat directly into the water-cooled metal cylinder shaft due to the cushioning property of the disk so that there are no gaps and cracks at the boundary between the heat-resistant ring and the heat insulating disk. it can. In addition, when the nut that holds the disk after loosening the heat insulating roll of Example 1 was loosened, the inorganic material disk part was restored to the 15 mm (25%) axial direction, and the amount of thermal expansion in the axial direction of the nickel-cobalt heat resistant steel ring (Calculated amount when the entire ring reaches 1200 ° C .; linear expansion coefficient 17.8 × 10 −6) 1.5 mm can be sufficiently absorbed, and generation of a gap is prevented.

本発明は、金属筒軸に対して耐熱リング及びディスクを溶接することなく嵌装して設けることにより、熱伝導が小さく、耐熱リングの熱膨張・収縮にも追随し隙間が発生せず熱の逃げを防止でき、炉雰囲気温度をさげることなく、または、燃費の上昇なく、かつ、耐衝撃性が優れるようにした断熱ロールを提供することを目的とする。   In the present invention, the heat-resistant ring and the disk are fitted to the metal cylinder shaft without being welded, so that the heat conduction is small, the heat expansion / contraction of the heat-resistant ring follows, and no heat is generated without generating a gap. It is an object of the present invention to provide a heat insulating roll that can prevent escape, does not reduce the furnace atmosphere temperature, does not increase fuel consumption, and has excellent impact resistance.

以下、図面と共に本発明による断熱ロールの好適な実施の形態について説明する。尚、従来例と同一又は同等部分については同一符号を用いて説明する。
図１において符号１で示されるものは冷却水を貫通させて案内するための貫通孔１Ａを有する筒状の金属筒軸であり、この金属筒軸１の外周の一端１ａには固定フランジ５が溶接されており、その他端１ｂには移動フランジ６が設けられていると共に、この他端１ｂ外周のねじ部１ｃに螺合されたナット８により移動フランジ６が軸方向に付勢を受けるように構成されている。 Hereinafter, preferred embodiments of the heat insulating roll according to the present invention will be described with reference to the drawings. Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.
In FIG. 1, reference numeral 1 denotes a cylindrical metal cylinder shaft having a through-hole 1A for allowing cooling water to pass therethrough, and a fixing flange 5 is provided at one end 1a of the outer periphery of the metal cylinder shaft 1. The other end 1b is welded, and a moving flange 6 is provided, and the moving flange 6 is urged in the axial direction by a nut 8 screwed to the outer thread 1c of the other end 1b. It is configured.

前記金属筒軸１の外周における前記各フランジ５、６間には、本出願人製のＡＳＫ＃２０５７よりなるノンアスベストからなる複数枚の輪状の無機質材等のディスク７（前述の材質以外も可）とニッケル・コバルト系等からなる耐熱リング２が軸方向に積層されており、前記ナット８を内方に回転させることによってナット８が固定フランジ５側へ押圧され、各ディスク７及び耐熱リング２が強固に押圧付勢されると共に、各ディスク７と耐熱リング２の積層により断熱ロール６Ａを構成している。
尚、耐熱リング２とディスク７は金属筒軸１に対して嵌装され、金属筒軸１に対しては溶接固定しない非溶接状態に構成されている。 Between the flanges 5 and 6 on the outer periphery of the metal cylinder shaft 1, a plurality of discs 7 made of non-asbestos made of non-asbestos made of ASK # 2057 manufactured by the present applicant (other than the above-mentioned materials are also possible). ) And a heat-resistant ring 2 made of nickel / cobalt or the like is laminated in the axial direction. By rotating the nut 8 inward, the nut 8 is pressed toward the fixed flange 5, and each disk 7 and the heat-resistant ring 2. Is firmly pressed and urged, and the heat insulating roll 6A is constituted by the lamination of each disk 7 and the heat-resistant ring 2.
The heat-resistant ring 2 and the disk 7 are fitted to the metal tube shaft 1 and are configured in a non-welded state in which the metal tube shaft 1 is not fixed by welding.

前記断熱ロール６Ａは、図１で示される原理構成を、試験的に特性試験を行う場合には、図２で示すように構成して実験を行うが、原理上は図１も図２も同じ本発明の断熱ロール６Ａを構成している。   The heat insulating roll 6A is configured as shown in FIG. 2 in the case where the principle configuration shown in FIG. The heat insulating roll 6A of the present invention is configured.

前述の図１及び図２における金属筒軸１の外周には一対の金属筒軸キー溝１Ｃが１８０°分割で形成されると共に、前記耐熱リング２の内周にも一対のキー溝２Ｃが形成され、前記各キー溝１Ｃ、２Ｃ間にキー１０が設けられていることにより、耐熱リング２は金属筒軸１に対して回転不可でかつ軸方向には移動可能に構成されている。   A pair of metal cylinder shaft key grooves 1C are formed on the outer periphery of the metal cylinder shaft 1 in FIG. 1 and FIG. 2 as described above, and a pair of key grooves 2C are also formed on the inner periphery of the heat-resistant ring 2. Since the key 10 is provided between the key grooves 1C and 2C, the heat-resistant ring 2 is configured to be unrotatable with respect to the metal cylinder shaft 1 and movable in the axial direction.

すなわち、耐熱リング２は軸方向には非固定状態で無機質材のディスク７に挟まれた状態で耐熱リング２の熱膨張・収縮には相対移動可能に構成されている。又円周方向の熱膨張・収縮量に対しても十分な嵌め合い量を設定することにより、スラブ搬送時の回転方向（周方向）の衝撃による耐熱リングの空回転を防止できる。すなわち、軸方向の耐熱リング２の熱的伸縮変化はディスク７のスプリング効果により隙間が発生することなく、耐熱リング２は非固定状態のため、熱応力の発生を小さく出来、割れの発生を防止できる。又、耐熱リング２の熱伝導による水冷の金属筒軸１への熱の逃げも、従来の溶接一体構造に比べ嵌め合い構造のため、嵌め合い境界に伝熱抵抗が発生し伝熱量を抑えることが可能となった。   That is, the heat-resistant ring 2 is configured to be movable relative to the thermal expansion / contraction of the heat-resistant ring 2 in a state in which the heat-resistant ring 2 is not fixed in the axial direction and is sandwiched between the inorganic material disks 7. Also, by setting a sufficient amount of engagement with the amount of thermal expansion / contraction in the circumferential direction, it is possible to prevent idling of the heat-resistant ring due to an impact in the rotation direction (circumferential direction) during slab conveyance. That is, the thermal expansion / contraction change of the heat-resistant ring 2 in the axial direction does not generate a gap due to the spring effect of the disk 7 and the heat-resistant ring 2 is in a non-fixed state. it can. Also, the heat escape to the water-cooled metal tube shaft 1 due to the heat conduction of the heat-resistant ring 2 is a fitting structure as compared with the conventional welded integrated structure, so heat transfer resistance is generated at the fitting boundary and the amount of heat transfer is suppressed. Became possible.

次に、本出願人が実際に実施をした例について述べる。
（実施例１）
図２に示すサイズの断熱ロール６Ａを作製し、破線で示したシリコニット加熱炉１１にて１２００℃に加熱しニッケル・コバルト系耐熱リング２各部の温度（×印Ａ〜Ｄ）を測定するとともに、冷却水２０の入り口及び出口温度を測定し、熱の逃げ量を従来の溶接構造・耐熱モルタル断熱構造と比較した。又、耐熱リング２と断熱材境界面の隙間発生の有無についても目視観察した。
従来の溶接構造・耐熱モルタル断熱構造は図７の断熱ロール６Ａに示した水冷の金属筒軸１へ耐熱リング２を溶接した後、無機質のディスク７を装着する部分にＹ形鋲３を溶接し、旭硝子（株）製アサヒライトキャスター１３（ＬＣ−１３）を混練り水量３５ｗｔ％で練った耐熱モルタル４で仕上がり外径２８０φに仕上げ比較試験に供した。
尚、冷却水の水量は３Ｌ／ｍｉｎ。 Next, an example of actual implementation by the applicant will be described.
(Example 1)
A heat insulating roll 6A having the size shown in FIG. 2 is prepared, heated to 1200 ° C. in a siliconite heating furnace 11 indicated by a broken line, and the temperature (x mark AD) of each part of the nickel / cobalt heat resistant ring 2 is measured. The inlet and outlet temperatures of the cooling water 20 were measured, and the amount of heat escape was compared with the conventional welded structure / heat resistant mortar heat insulating structure. Further, the presence or absence of a gap between the heat-resistant ring 2 and the heat insulating material interface was also visually observed.
In the conventional welded structure and heat-resistant mortar heat-insulated structure, after heat-resistant ring 2 is welded to water-cooled metal cylinder shaft 1 shown in heat-insulating roll 6A in FIG. 7, Y-shaped rod 3 is welded to the portion where inorganic disk 7 is mounted. Asahilite Castor 13 (LC-13) manufactured by Asahi Glass Co., Ltd. was kneaded and heat-resistant mortar 4 kneaded at a water amount of 35 wt%, and finished to an outer diameter of 280φ and subjected to a finishing comparative test.
The amount of cooling water is 3 L / min.

（実施例２）
実施例１のニッケル・コバルト系の耐熱リング２を図５及び図６に示すように分割して大径の第１耐熱リング部２Ａと小径の第２耐熱リング部２Ｂとを同軸配置して構成し、内径側の第２耐熱リング部２Ｂの材質をＳＵＳ３１０Ｓにて製作した。尚、符号２Ｄ及び２Ｅはそれぞれ分割されたリング部２Ａ、２Ｂの接合部２Ｍを固定するための固定板２Ｄ固定皿ネジ２Ｅであり、その試験条件は実施例１と同じである。 (Example 2)
The nickel-cobalt heat-resistant ring 2 according to the first embodiment is divided as shown in FIGS. 5 and 6 so that the large-diameter first heat-resistant ring portion 2A and the small-diameter second heat-resistant ring portion 2B are arranged coaxially. The material of the second heat-resistant ring portion 2B on the inner diameter side was manufactured with SUS310S. Reference numerals 2D and 2E denote fixing plate 2D fixing flat head screws 2E for fixing the joint portions 2M of the divided ring portions 2A and 2B, respectively, and the test conditions are the same as those in the first embodiment.

（実施例３）
実施例２の分割した耐熱リング部２Ａ、２Ｂの内径側のリング部２Ｂの材質をＳＵＳ３１０Ｓの代わりにＡｌ2Ｏ３セラミック焼結体に変更して使用した。試験条件は１と同じである。 (Example 3)
The material of the divided heat-resistant ring portions 2A and 2B of the ring portion 2B on the inner diameter side of Example 2 was changed to an Al 2 O 3 ceramic sintered body instead of SUS310S. The test conditions are the same as 1.

（実施例４）
実施例１のニッケル・コバルト系耐熱鋼からなる耐熱リング２の代わりにＡｌ２Ｏ３セラミック焼結体を使用した。試験条件は実施例１と同じである。
実施例１、２、３、４の効果を表１の第１表に示す（但し、比較例との対比で示している）。 Example 4
An Al 2 O 3 ceramic sintered body was used in place of the heat-resistant ring 2 made of the nickel / cobalt heat-resistant steel of Example 1. The test conditions are the same as in Example 1.
The effects of Examples 1, 2, 3, and 4 are shown in Table 1 of Table 1 (however, shown in comparison with Comparative Examples).

Figure 2005324244
Figure 2005324244

本発明は、製鉄用の断熱ロールだけではなく、高温下における他の搬送設備にも応用が可能である。   The present invention can be applied not only to heat insulating rolls for iron making, but also to other transfer facilities at high temperatures.

本発明による断熱ロールの断面図である。It is sectional drawing of the heat insulation roll by this invention. 図１の実験用の構成を示す断面図である。It is sectional drawing which shows the structure for experiment of FIG. 図２の要部を示す拡大断面図である。It is an expanded sectional view which shows the principal part of FIG. 図２の要部を示す拡大断面図である。It is an expanded sectional view which shows the principal part of FIG. 図３の他の形態を示す断面図である。It is sectional drawing which shows the other form of FIG. 図５の断面図である。It is sectional drawing of FIG. 従来構成を示す断面図である。It is sectional drawing which shows a conventional structure.

符号の説明Explanation of symbols

１ 金属筒軸
１ａ 一端
１ｂ 他端
１Ｃ 金属筒軸キー溝
２ 耐熱リング
２Ｃ キー溝
５ 固定フランジ
６ 移動フランジ
７ ディスク
８ ナット
１０ キー
６Ａ 断熱ロール
２Ａ 第１耐熱リング部
２Ｂ 第２耐熱リング部
２Ｄ 固定輪状板
２Ｅ 固定皿ネジ DESCRIPTION OF SYMBOLS 1 Metal cylinder shaft 1a One end 1b Other end 1C Metal cylinder shaft keyway 2 Heat-resistant ring 2C Keyway 5 Fixed flange 6 Moving flange 7 Disc 8 Nut 10 Key 6A Heat insulation roll 2A 1st heat-resistant ring part 2B 2nd heat-resistant ring part 2D fixation Ring plate 2E fixed countersunk screw

Claims (6)

冷却水(20)を通過させる貫通孔(1A)を有する金属筒軸(1)の外周の固定フランジ(5)と移動フランジ(6)間に複数の耐熱リング(2)を所定間隔で軸方向に嵌装し、前記各耐熱リング(2)間に複数のディスク(7)を積層させ、前記各耐熱リング(2)及び各ディスク(7)は前記金属筒軸(1)に対して非溶接状態に構成されていることを特徴とする断熱ロール。   A plurality of heat-resistant rings (2) are axially arranged at predetermined intervals between the fixed flange (5) and the moving flange (6) on the outer periphery of the metal cylinder shaft (1) having a through hole (1A) through which the cooling water (20) passes. A plurality of disks (7) are stacked between each heat-resistant ring (2), and each heat-resistant ring (2) and each disk (7) are not welded to the metal cylinder shaft (1). The heat insulation roll characterized by being comprised by the state. 前記耐熱リング(2)は、互いに径が異なる複数の耐熱リング部(2A,2B)が同軸配置されていることを特徴とする請求項１記載の断熱ロール。   The heat-insulating roll according to claim 1, wherein the heat-resistant ring (2) has a plurality of heat-resistant ring portions (2A, 2B) having different diameters arranged coaxially. 前記各耐熱リング(2)は、各耐熱リング(2)の接合部(2M)に設けられた一対の固定輪状板(2D)と、前記各固定輪状板(2D)を締結するため軸方向に設けられた固定皿ネジ(2E)とによって固定されていることを特徴とする請求項１又は２記載の断熱ロール。   Each heat-resistant ring (2) includes a pair of fixed ring-shaped plates (2D) provided at a joint (2M) of each heat-resistant ring (2) and the fixed ring-shaped plates (2D) in the axial direction to fasten the fixed ring-shaped plates (2D). The heat insulating roll according to claim 1 or 2, wherein the heat insulating roll is fixed by a fixed countersunk screw (2E) provided. 前記耐熱リング(2)は、前記金属筒軸(1)の外周に形成された金属筒軸キー溝(1C)と、前記耐熱リング(2)の内周に形成されたキー溝(2C)と、前記金属筒軸キー溝(1C)及びキー溝(2C)に係合するキー(10)によって前記金属筒軸(1)に固定されていることを特徴とする請求項１ないし３の何れかに記載の断熱ロール。   The heat-resistant ring (2) includes a metal cylinder shaft key groove (1C) formed on the outer periphery of the metal cylinder shaft (1), and a key groove (2C) formed on the inner periphery of the heat-resistant ring (2). The metal cylinder shaft (1) is fixed to the metal cylinder shaft (1) by a key (10) engaged with the metal cylinder shaft key groove (1C) and the key groove (2C). The heat insulation roll as described in. 前記耐熱リング(2)は、一部又は全部がセラミックよりなることを特徴とする請求項１記載の断熱ロール。   The heat-insulating roll according to claim 1, wherein a part or all of the heat-resistant ring (2) is made of ceramic. 前記各耐熱リング部(2)は、外側の耐熱リング部(2A)がニッケル・コバルト又はステンレスよりなり、内側の耐熱リング部(2B)がセラミックよりなることを特徴とする請求項２、３、４の何れかに記載の断熱ロール。   Each of the heat resistant ring portions (2) is characterized in that the outer heat resistant ring portion (2A) is made of nickel / cobalt or stainless steel, and the inner heat resistant ring portion (2B) is made of ceramic. The heat insulation roll in any one of 4.
JP2004146478A 2004-05-17 2004-05-17 Heat insulating roll Pending JP2005324244A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581031A (en) * 2012-01-18 2012-07-18 燕山大学 Inner-source driven comprehensive shape and thickness regulation mill
CN112513560A (en) * 2018-08-03 2021-03-16 三菱电机株式会社 Angle detector and method for manufacturing angle detector

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JPS6234996Y2 (en) * 1983-09-09 1987-09-05
JPH02129315A (en) * 1988-11-08 1990-05-17 Ibiden Co Ltd Roll for conveying stainless steel
JPH03500906A (en) * 1988-06-02 1991-02-28 シュタイン　ウールティー Steel product handling rolls moving inside the furnace
JPH03249122A (en) * 1990-02-28 1991-11-07 Kawasaki Steel Corp Sleeve roll
JPH04226211A (en) * 1990-07-27 1992-08-14 Eltech Syst Corp Heat insulating roll cover
JPH0762588B2 (en) * 1986-01-29 1995-07-05 大同特殊鋼株式会社 Water-cooled scroll
JPH10195526A (en) * 1996-12-27 1998-07-28 Kubota Corp Dividing type tire roller
JPH1129826A (en) * 1997-07-10 1999-02-02 Ask Tekunika:Kk Heat-insulating roll
JP2000109925A (en) * 1998-10-05 2000-04-18 Kubota Corp Cooling roller
JP3300207B2 (en) * 1995-09-04 2002-07-08 株式会社クボタ Heated object transport roller in heat treatment furnace
WO2005113843A1 (en) * 2004-05-20 2005-12-01 Korea Toho Co., Ltd. Adiabatic roll

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234996Y2 (en) * 1983-09-09 1987-09-05
JPS6223807Y2 (en) * 1984-01-30 1987-06-17
JPH0762588B2 (en) * 1986-01-29 1995-07-05 大同特殊鋼株式会社 Water-cooled scroll
JPH03500906A (en) * 1988-06-02 1991-02-28 シュタイン　ウールティー Steel product handling rolls moving inside the furnace
JPH02129315A (en) * 1988-11-08 1990-05-17 Ibiden Co Ltd Roll for conveying stainless steel
JPH03249122A (en) * 1990-02-28 1991-11-07 Kawasaki Steel Corp Sleeve roll
JPH04226211A (en) * 1990-07-27 1992-08-14 Eltech Syst Corp Heat insulating roll cover
JP3300207B2 (en) * 1995-09-04 2002-07-08 株式会社クボタ Heated object transport roller in heat treatment furnace
JPH10195526A (en) * 1996-12-27 1998-07-28 Kubota Corp Dividing type tire roller
JPH1129826A (en) * 1997-07-10 1999-02-02 Ask Tekunika:Kk Heat-insulating roll
JP2000109925A (en) * 1998-10-05 2000-04-18 Kubota Corp Cooling roller
WO2005113843A1 (en) * 2004-05-20 2005-12-01 Korea Toho Co., Ltd. Adiabatic roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581031A (en) * 2012-01-18 2012-07-18 燕山大学 Inner-source driven comprehensive shape and thickness regulation mill
CN112513560A (en) * 2018-08-03 2021-03-16 三菱电机株式会社 Angle detector and method for manufacturing angle detector

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