JPS62151255A - Roll for conveying high temperature slab - Google Patents
Roll for conveying high temperature slabInfo
- Publication number
- JPS62151255A JPS62151255A JP29047285A JP29047285A JPS62151255A JP S62151255 A JPS62151255 A JP S62151255A JP 29047285 A JP29047285 A JP 29047285A JP 29047285 A JP29047285 A JP 29047285A JP S62151255 A JPS62151255 A JP S62151255A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- slab
- conveying
- temperature
- high 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
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)
- Rollers For Roller Conveyors For Transfer (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、搬送される高温鋳片の温度低下を低減する
ことを可能とした、高温銅片搬送用ロールに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a roll for conveying high-temperature copper pieces, which makes it possible to reduce the temperature drop of high-temperature cast pieces being conveyed.
連結鋳造機によって鋳造された高温鋳片を圧延機まで搬
送する場合、高温鋳片の搬送用ロールとして、従来は、
内部に冷却水通路を有する平担なフラットロールが用い
られることが多かったが、最近では、高温鋳片の温度低
下を少なくするために、内部に冷却水通路を有するロー
ルの表面に、ロール周方向の環状溝をロール軸方向に並
設して、高温鋳片との接触部を少なくした、溝付きロー
ルが用いられることが多くなっている。When transporting high-temperature slabs cast by a connected casting machine to a rolling mill, rolls for transporting the high-temperature slabs have conventionally been used.
Flat rolls with internal cooling water passages were often used, but recently, in order to reduce the temperature drop of high-temperature slabs, rolls with internal cooling water passages have been equipped with a roll periphery. Grooved rolls are increasingly being used in which annular grooves are arranged in parallel in the axial direction of the roll to reduce the contact area with the hot slab.
この溝付きロールでは、高温鋳片との接触部外が少ない
ので、接触伝熱による高温鋳片の温度低下をフラットロ
ールのときよシも少なくできる。Since this grooved roll has fewer external contact areas with the high-temperature slab, the temperature drop in the high-temperature slab due to contact heat transfer can be reduced compared to a flat roll.
しかしながら、高温鋳片からの溝部分５の放射伝熱によ
る高温鋳片の温度低下は避けられないので、高温鋳片の
温度低下防止効果は充分でない。However, since the temperature of the high-temperature slab inevitably decreases due to radiant heat transfer in the groove portion 5 from the high-temperature slab, the effect of preventing the temperature drop of the high-temperature slab is not sufficient.
溝付きロールの溝に、断熱材を設けた搬送用ロールも知
られているが、スラブなどの高温鋳片の場合、通常５０
〜１５０ｒｙ＋／ｍの比較的速い速度で搬送されるので
、１固々の断熱ロールを比１１ｔｚ的短時間で通過して
しまう。このため、断熱材への蓄熱による断熱効果は著
しく悪く、その結果、高温圀片の温度低下防止効果は、
余り向上しない。Conveyance rolls with heat insulating material provided in the grooves of grooved rolls are also known, but in the case of high-temperature slabs such as slabs, the
Since it is conveyed at a relatively high speed of ~150ry+/m, it passes through one solid heat insulating roll in a relatively short time of 11tz. For this reason, the insulation effect due to heat storage in the insulation material is extremely poor, and as a result, the temperature drop prevention effect of the high-temperature cloth is
It doesn't improve much.
以上のような問題は、ロール内部を冷却してないタイプ
の高温切片搬送用ロールでも基本的に同様に生じる。な
お、ロール内部を冷却するのは、高温鋳片による加熱に
よってロール表面に生ずる損傷を防止するためである。The above-mentioned problems basically occur in the same way even in a type of roll for conveying high-temperature sections in which the inside of the roll is not cooled. Note that the reason for cooling the inside of the roll is to prevent damage to the roll surface caused by heating by the high-temperature slab.
この発明は、上述の現状に鑑み、高温鋳片を搬送するに
際し、溝付きロールの溝部分への高温鋳片からの放射伝
熱を少なくすることによって、高温鋳片の温度低下を低
減することを可能とした、高温鋳片の搬送用ロールを提
供することを目的とするものである。In view of the above-mentioned current situation, this invention aims to reduce the temperature drop of the hot slab by reducing the radiant heat transfer from the hot slab to the groove portion of the grooved roll when conveying the hot slab. It is an object of the present invention to provide a roll for conveying high-temperature slabs, which enables the following.
この発明は、ロールの表面にロール周方向の環状溝をロ
ール軸方向に並設した高温鋳片搬送用ロールにおいて、
前記ロールの前記環状溝を反射面によって構成したこと
に特徴を有するものである。This invention provides a roll for conveying hot slabs in which annular grooves in the roll circumferential direction are arranged in parallel in the roll axial direction on the roll surface.
The present invention is characterized in that the annular groove of the roll is formed of a reflective surface.
以下、この発明の高温鋳片搬送用ロールを図面に基づき
詳述する。EMBODIMENT OF THE INVENTION Hereinafter, the roll for conveying hot slabs of this invention will be described in detail based on the drawings.
第１図は、この発明の搬送用ロールが用いられた高温鋳
片搬送ライン？示す横断面図、第２図は、同じく、側面
図である。Figure 1 shows a high-temperature slab conveying line using the conveying roll of the present invention. The cross-sectional view shown in FIG. 2 is also a side view.
第１〜２図において、１は高温鋳片搬送ラインに設けら
れた上部保温力・クー、２は同じく下部保温カバー、３
は同じくこの発明の搬送用ロール、４は搬送用ロール３
によって搬送される高温鋳片である。上部保温カバー１
および下部保温力・々−２は、高温鋳片４と相対する内
面がＣｒメッキ知よって反射面となった鉄板製の力・ぐ
−からなっておシ、高温鋳片４の熱を外部と遮断してい
る。In Figures 1 and 2, 1 is an upper heat-insulating unit installed in the high-temperature slab conveyance line, 2 is a lower heat-insulating cover, and 3 is a lower heat-insulating cover.
Similarly, 4 is a conveyance roll of the present invention, and 4 is a conveyance roll 3.
This is a high-temperature slab transported by. Upper thermal cover 1
The lower heat retention capacity 2 consists of an iron plate whose inner surface facing the high-temperature slab 4 is Cr-plated to serve as a reflective surface, transferring the heat of the high-temperature slab 4 to the outside. It's blocked.
この発明の搬送用ロール３は、内部に冷却水通路５を有
するロールの表面に、ロール周方向の環状溝６をロール
軸方向に並設してなっておシ、そして、環状溝６を反射
面６ａによって構成している。The conveying roll 3 of the present invention has annular grooves 6 in the roll circumferential direction arranged in parallel in the roll axial direction on the surface of the roll having a cooling water passage 5 inside, and the annular grooves 6 are reflective. It is constituted by a surface 6a.
従って、搬送用ロール３の、高温鋳片４との接触面３ａ
の部分では、従来と同様に、高温鋳片４の熱が接触伝熱
によりロール３内部に伝わる力；、搬送用ロール３の、
高温鋳片４との非接触部である環状溝６の部分では、高
温鋳片４の放射熱が反射面６ａによって反射されるので
、高温鋳片４の熱が放射伝熱によりロール３内部へ伝わ
るのが低減される。Therefore, the contact surface 3a of the conveying roll 3 with the high temperature slab 4
As in the conventional case, in the portion of
In the part of the annular groove 6 which is a non-contact part with the high-temperature slab 4, the radiant heat of the high-temperature slab 4 is reflected by the reflective surface 6a, so the heat of the high-temperature slab 4 is transferred to the inside of the roll 3 by radiation heat transfer. transmission is reduced.
経験によれば、環状溝６０反射面６ａの放射率εを０．
２以下とすると、高温鋳片４から直接くる放射熱や上部
および下部保温力・ぐ−１および２で反射されてくる放
射熱は、環状溝６の部分での反射によって、ロール内部
への伝熱が従来の約１／２に低減される。According to experience, the emissivity ε of the annular groove 60 reflecting surface 6a is set to 0.
2 or less, the radiant heat coming directly from the high-temperature slab 4 and the radiant heat reflected by the upper and lower insulation groups 1 and 2 will be reflected at the annular groove 6 and transmitted to the inside of the roll. Heat is reduced to about 1/2 compared to conventional methods.
環状溝６の反射面６ａは、環状溝６を構成する面にＣｒ
メッキ等を施す他、環状溝６に、第３図に示すような鍔
付きリング７を嵌合し、その鍔付きリング７の内面７ａ
ｉＣｒメツキ等により反射面とすることによって、形成
される。The reflective surface 6a of the annular groove 6 is made of Cr on the surface constituting the annular groove 6.
In addition to plating, etc., a flanged ring 7 as shown in FIG. 3 is fitted into the annular groove 6, and the inner surface 7a of the flanged ring 7 is
It is formed by forming a reflective surface by iCr plating or the like.
以上の実施例では、搬送用ロール３が内部に冷却水通路
５を有するタイプのものについて説明したが、この発明
はこれに限られず、内部に冷却水通路を有しないタイプ
の搬送用ロールについても適用で＾る。In the above embodiments, the conveyance roll 3 has a cooling water passage 5 inside. However, the present invention is not limited to this, and may also be applied to a conveyance roll without a cooling water passage inside. It depends on the application.
この発明の搬送用ロールによれば、搬送される高温鋳片
の温度低下を低減することができる。According to the conveying roll of the present invention, it is possible to reduce the temperature drop of the high-temperature slab being conveyed.
第１図は、この発明の搬送用ロールが用いられた高温鋳
片搬送ラインを示す横断面図、第２図は、同じく、側面
図、第３図は、第１図の搬送用ロールの環状溝に反射面
を形成するための鍔付きリングを示す斜視図である。図
面において、３・・・搬送用ロール ３ａ・・・接
触面４・・・高温鋳片 ５・・・冷却水通路６・
・・環状溝 ６ａ・・・反射面７・・・鍔付き
り／グ ７ａ・・・内面。FIG. 1 is a cross-sectional view showing a high-temperature slab conveying line in which the conveying roll of the present invention is used, FIG. 2 is a side view, and FIG. 3 is an annular shape of the conveying roll of FIG. FIG. 3 is a perspective view showing a flanged ring for forming a reflective surface in a groove. In the drawing, 3...conveying roll 3a...contact surface 4...high temperature slab 5...cooling water passage 6.
...Annular groove 6a...Reflective surface 7...Flanged/Group 7a...Inner surface.
Claims (1)
並設した高温鋳片搬送用ロールにおいて、前記ロールの
前記環状溝を反射面によつて構成したことを特徴とする
、高温鋳片搬送用ロール。A roll for transporting high-temperature slabs having annular grooves in the circumferential direction on the surface of the roll arranged in parallel in the axial direction of the roll, characterized in that the annular grooves of the roll are configured with reflective surfaces. Roll for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29047285A JPS62151255A (en) | 1985-12-25 | 1985-12-25 | Roll for conveying high temperature slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29047285A JPS62151255A (en) | 1985-12-25 | 1985-12-25 | Roll for conveying high temperature slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62151255A true JPS62151255A (en) | 1987-07-06 |
Family
ID=17756451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29047285A Pending JPS62151255A (en) | 1985-12-25 | 1985-12-25 | Roll for conveying high temperature slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62151255A (en) |
-
1985
- 1985-12-25 JP JP29047285A patent/JPS62151255A/en active Pending
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