JPS6030561A - Hot roll - Google Patents
Hot rollInfo
- Publication number
- JPS6030561A JPS6030561A JP13981283A JP13981283A JPS6030561A JP S6030561 A JPS6030561 A JP S6030561A JP 13981283 A JP13981283 A JP 13981283A JP 13981283 A JP13981283 A JP 13981283A JP S6030561 A JPS6030561 A JP S6030561A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- roll
- shaft body
- water cooling
- hot roll
- 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
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
- 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)
- Rolls And Other Rotary Bodies (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は連続鋳造用ロールを初めとする各種の熱間ロー
ルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to various hot rolls including continuous casting rolls.
この種熱間ロールは高温の金属片と接触する為に冷却機
構を具備するものが多く、例えばスリーブを用いないソ
リッドロールでは軸芯に水冷孔を開設したものや外周近
くに水冷孔を開設したものがあり、又スリーブ付ロール
ではやはり軸芯に水冷孔を開設したものと第１図に示す
様に軸本体（１）の外周面に掘った溝（２） とスリー
ブ（３） との間に生じる空間を水冷孔とする方式とが
ある。Many of these hot rolls are equipped with a cooling mechanism because they come into contact with hot metal pieces.For example, solid rolls that do not use sleeves have water cooling holes in the shaft core or water cooling holes near the outer periphery. There are rolls with sleeves, which also have water cooling holes in the shaft core, and as shown in Figure 1, between the groove (2) dug on the outer circumferential surface of the shaft body (1) and the sleeve (3). There is a method in which the space created in the hole is used as a water cooling hole.
ところでソリッドロールとスリーブ付ロールは共に一長
一短があり使用目的に応じてその両方とも使用されてい
るのが現状であるが、上述の如き冷却機構を持つスリー
ブ付ロールには下記の如き欠点がある。即ち軸本体の軸
芯に水冷孔が開設されている方式のものでは最も高温に
なるスリーブの冷却が不足気味で損耗が激しいと共に、
該スＪ−ブが加熱に伴う膨張の為にふくれ、曲り等の変
形を起こすし、又第１図の如き方式のもので２よ軸本体
（１）の外周面とスリーブ（３）の内周面との摩耗が大
きくそれらの部所が容易に摩滅する事に伴ない冷却水の
漏れをはじめ多くの問題がある。By the way, both solid rolls and sleeved rolls have advantages and disadvantages, and at present both are used depending on the purpose of use, but the sleeved rolls having the above-mentioned cooling mechanism have the following drawbacks. In other words, with a system in which water cooling holes are provided in the shaft core of the shaft body, cooling of the sleeve, which is the highest temperature, is insufficient, resulting in severe wear and tear.
The tube expands due to heating, causing deformations such as swelling and bending, and in the type shown in Fig. 1, the outer peripheral surface of the shaft body (1) and the inner surface of the sleeve (3) There are many problems such as leakage of cooling water due to the large amount of wear on the surrounding surface and easy wear of these parts.
本発明では上述の諸欠点を解消するスリーブ付ロールを
提供せんとするものであり、その要旨は軸本体にスリー
ブが取付けられているロールであって、該スリーブ内に
水冷孔が開設されｔこことを特徴とする熱間ロールであ
る。The present invention aims to provide a roll with a sleeve that eliminates the above-mentioned drawbacks, and its gist is a roll in which a sleeve is attached to the shaft body, and water cooling holes are provided in the sleeve. This is a hot roll characterized by the following.
以下図面を参酌しながら本発明を詳述すれば、本発明胃
−ルは第２図や第３図に示す如く軸本体（１）の外周に
スリーブ（３）が取付けられており、該スリーブ内に円
周方向螺旋状に走る（第２図）あるいは軸方向に走る（
第３図）水冷孔（４）が開設されている。これらロール
軸本体（１）及びスリ−ブ（３）の材質は通常用いられ
る各種素材から成り本発明にあっては特に材質の限定を
行うものではない。The present invention will be described in detail below with reference to the drawings. As shown in FIGS. 2 and 3, the present invention has a sleeve (3) attached to the outer periphery of the shaft body (1). It runs in a circumferential spiral (Fig. 2) or in an axial direction (
Figure 3) Water cooling hole (4) is opened. The roll shaft main body (1) and the sleeve (3) are made of various commonly used materials, and the materials are not particularly limited in the present invention.
又スリーブの製作、取付方法は、第３図の様に軸方向に
走る水冷孔（４）を有するものでは該スリーブを軸本体
へ取付ける前あるいは取付けた後に機械加工による孔明
けによってなす事が可能で、又取付は通常なされている
焼嵌めあるいは溶接やノック止めによる端部固定でよい
が、第２図の様に円周方向螺旋状の水冷孔（４）を有す
るものの場合には第４図に示す如くスリーブ（３） を
円周方向に２分される２個の分割管＋３−１） 、 （
３−２１を組合わせて作る様にし、該２個の分割管（３
−１１、（３−２＋の向合う側に水冷孔（４） となる
べき螺旋状の溝を形成しこの２個の分割管を熱間等方圧
加圧接合をはじめとする拡散接合で冶金的に結合させて
作る方法が有効であり、乙の場合に両分割管（３−１１
、（３−２１間に形成された溝の中にスリーブ完成後も
同スリーブと一体として使用される例えば銅パイプ等か
ら成る詰物（５）、又はスリーブ完成後は所要手段で除
去されるセラミック粉等から成る詰物（５）を入れた状
態で拡散接合させ、水冷孔（４） となるべき溝が潰れ
たり変形したりするのを防ぐと一層好ましい。In addition, the sleeve can be manufactured and attached by drilling holes by machining before or after attaching the sleeve to the shaft body, if the sleeve has a water cooling hole (4) running in the axial direction as shown in Fig. 3. In addition, the ends may be fixed by shrink fitting, welding, or knocking as is usually done, but in the case of a device having circumferentially spiral water cooling holes (4) as shown in Fig. 4, As shown, the sleeve (3) is divided into two in the circumferential direction by two split tubes +3-1), (
3-21, and the two split tubes (3
-11, (3-2+) A spiral groove to be the water cooling hole (4) is formed on the opposite side, and these two split tubes are metallurgically bonded by diffusion bonding including hot isostatic pressure bonding. An effective method is to connect the two split pipes (3-11).
, (a filling (5) made of, for example, a copper pipe, which is used as an integral part of the sleeve even after the sleeve is completed, in the groove formed between 3 and 21, or a ceramic powder that is removed by a necessary means after the sleeve is completed) It is even more preferable to carry out diffusion bonding with a filler (5) such as the like inserted therein to prevent the groove that is to become the water cooling hole (4) from being crushed or deformed.
なお本発明のロールにあっても、スリーブの更に外周面
に耐摩耗特性、耐熱亀裂性等に富む材料層を肉盛溶接や
溶射の手段で形成せしめて用いる事もあり、この様な耐
摩耗、耐熱亀裂性材料層を形成させる場合も上述の拡散
接合法によるスリーブ製作によればスリーブの製作と同
時に行い得るので便利である。In the roll of the present invention, a layer of material with high wear resistance, thermal cracking resistance, etc. is also formed on the outer peripheral surface of the sleeve by overlay welding or thermal spraying. The formation of the heat crack-resistant material layer is also convenient because it can be carried out at the same time as the sleeve by manufacturing the sleeve by the above-mentioned diffusion bonding method.
以上述べて来た様に、本発明の熱間ロールによれば、水
冷孔が最も高温にさらされるロール表面直下のスリーブ
内に開設されている為に、冷却効率が大でスリーブ自体
がふくれや曲り変形を起こす事はなり、シかもこの冷却
孔はスリーブ自体の内部に開けられているので、軸本体
とスリーブの当接部は一様な平滑であるからその部所で
特に摩耗が大きくなるという様な支障もなく、スリーブ
の緩みが少なくかつ水漏れの心配もないという効果があ
る。As described above, according to the hot roll of the present invention, since the water cooling holes are opened in the sleeve directly under the roll surface which is exposed to the highest temperature, the cooling efficiency is high and the sleeve itself does not swell. However, since the cooling holes are drilled inside the sleeve itself, the contact area between the shaft body and the sleeve is uniformly smooth, so wear is particularly high in that area. There is no problem such as that, there is less loosening of the sleeve, and there is no need to worry about water leakage.
第１図は従来のスリーブ付ロールの一部切欠正面図、第
２図及び第３図はそれぞれ本発明熱間四−ルの一部切欠
正面図、第４図は本発明熱間ｐ−ルの製法の一例を示す
要部説明図。
図中、（１）：ロール軸本体
（３）ニスリーブ
（４）：水冷孔
特許出願人 株式会社 黒木工業所
代理人有吉教晴Fig. 1 is a partially cutaway front view of a conventional sleeved roll, Figs. 2 and 3 are partially cutaway front views of a hot roll of the present invention, and Fig. 4 is a partially cutaway front view of a hot roll of the present invention. FIG. In the diagram, (1): Roll shaft body (3) Nice sleeve (4): Water cooling hole Patent applicant Kuroki Industries Co., Ltd. Agent Noriharu Ariyoshi
Claims (1)
て、該スリーブ内に水冷孔が開設されたことを特徴とす
る熱間ロール。1. A hot roll having a sleeve attached to a shaft body, and characterized in that water cooling holes are provided in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13981283A JPS6030561A (en) | 1983-07-30 | 1983-07-30 | Hot roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13981283A JPS6030561A (en) | 1983-07-30 | 1983-07-30 | Hot roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6030561A true JPS6030561A (en) | 1985-02-16 |
Family
ID=15254019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13981283A Pending JPS6030561A (en) | 1983-07-30 | 1983-07-30 | Hot roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118304A (en) * | 1987-10-30 | 1989-05-10 | Kawasaki Heavy Ind Ltd | Heating roll and manufacture thereof |
| JP2009255096A (en) * | 2008-04-11 | 2009-11-05 | Ueno Tekkusu Kk | Hot/warm rolling mill |
-
1983
- 1983-07-30 JP JP13981283A patent/JPS6030561A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118304A (en) * | 1987-10-30 | 1989-05-10 | Kawasaki Heavy Ind Ltd | Heating roll and manufacture thereof |
| JP2009255096A (en) * | 2008-04-11 | 2009-11-05 | Ueno Tekkusu Kk | Hot/warm rolling mill |
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