JPS62227030A - Heat treatment device for steel products - Google Patents
Heat treatment device for steel productsInfo
- Publication number
- JPS62227030A JPS62227030A JP7200686A JP7200686A JPS62227030A JP S62227030 A JPS62227030 A JP S62227030A JP 7200686 A JP7200686 A JP 7200686A JP 7200686 A JP7200686 A JP 7200686A JP S62227030 A JPS62227030 A JP S62227030A
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- heating
- steel material
- steel products
- soln
- 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 47
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000005098 hot rolling Methods 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 4
- 229910000963 austenitic stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は鋼材の熱処理装置に関し、特に熱間圧延後のオ
ーステナイト系ステンレス鋼を速やかに固溶化熱処理可
能な熱処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a heat treatment apparatus for steel materials, and more particularly to a heat treatment apparatus capable of rapidly solution heat treating austenitic stainless steel after hot rolling.
［従来の技術］
熱間圧延後のオーステティ１〜系ステンレス鋼の固溶化
熱処理にバッチ式加熱炉を使用する場合がおり、かかる
加熱炉の処理能力には限度があるため従来は処理持ち時
間に鋼材温度が常温程度にまで低下し、これを再加熱す
る加熱炉の加熱コストが増大するという問題がある。[Prior art] Batch-type heating furnaces are sometimes used for solution heat treatment of Austety 1 to stainless steels after hot rolling, and since the processing capacity of such heating furnaces is limited, conventionally the processing time has been limited. There is a problem in that the temperature of the steel material drops to about room temperature, and the heating cost of the heating furnace that reheats it increases.
さらに、上記固溶化熱処理においては、上記加熱炉より
抽出された鋼材を急冷するが、この時に鋼材がねじれ等
を生じる為に、次工程へ送る前にストレッチャやローラ
による引張り矯正が必要であった。Furthermore, in the above-mentioned solution treatment, the steel extracted from the heating furnace is rapidly cooled, but at this time the steel becomes twisted, so it is necessary to straighten the steel by tension using a stretcher or rollers before sending it to the next process. .
本発明はかかる問題点に鑑み、熱間圧延後のステンレス
鋼材を待ち時間を要することなく速やかに固溶化熱処理
でき、したがって加熱コストの低減が実現され、かつ熱
処理後の矯正を必要としない省工程の熱処理装置を提供
することを目的とする。In view of these problems, the present invention is capable of solution heat treatment of hot-rolled stainless steel materials without requiring any waiting time, thereby reducing heating costs and eliminating the need for straightening after heat treatment. The purpose of the present invention is to provide a heat treatment apparatus for the following purposes.
［問題点を解決するための手段］
本発明の構成を第１図により説明すると、加熱手段２Ａ
、２Ｂは、熱間圧延直後の長尺鋼材Ｗの両端部にそれぞ
れ当接可能とした電（へ２１を有し、該電極２１を上記
鋼材Ｗに当接せしめてこれを圧延直後の温度より高い温
度に通電加熱する。冷却手段１は、上記加熱終了後に、
上記鋼材Ｗの両端部をそれぞれ固定位置で挟持してこれ
を急冷する。[Means for Solving the Problems] To explain the configuration of the present invention with reference to FIG. 1, the heating means 2A
, 2B has electrodes 21 that can be brought into contact with both ends of the long steel material W immediately after hot rolling, and the electrodes 21 are brought into contact with the steel material W to lower the temperature of the steel material W immediately after rolling. The cooling means 1 conducts electrical heating to a high temperature.After the heating is completed, the cooling means 1
Both ends of the steel material W are held at fixed positions and rapidly cooled.
［効ｒＡ］
本発明の熱処理装置によれば、熱間圧延直後の鋼材を速
やかに通電加熱するから、再ｊＪＯ熱に要する熱量は少
なくて済み、加熱コス］・が低減できる。[Efficacy rA] According to the heat treatment apparatus of the present invention, since the steel material immediately after hot rolling is heated with electricity, the amount of heat required for re-JO heating is small, and the heating cost can be reduced.
また、両端部を固定位置で挟持する冷却手段により鋼材
を急冷するから、冷却収縮による鋼材のねじれ等は生じ
ず、したがって熱処理後の矯正は不要である。Furthermore, since the steel material is rapidly cooled by a cooling means that holds both ends at fixed positions, twisting of the steel material due to cooling shrinkage does not occur, and therefore straightening after heat treatment is not necessary.
［実施例］
第１図において、８００″Ｃ程度で圧延された長尺のオ
ーステナイト系ステンレス鋼材Ｗは適当な載置機描によ
り冷却手段を構成する搬送コンベア上に置かれる。[Example] In FIG. 1, a long austenitic stainless steel material W rolled at about 800''C is placed on a conveyor constituting a cooling means by a suitable placement machine.
コンベア１は外方に平行にイｌ設した主動チェーンコン
ベア１１（一方のみ図示）と、その内方に設けた従動チ
ェーンコンベア１２より成り、チェーンコンベア］］は
図略のモータにより図中矢印方向へ間欠的に移動駆動ｕ
しめられている。一方、チェーンコンベア１２はブレー
キ装置に連結され、その移動にはブレーキ力に抗する大
ぎな力を要するようにしである。The conveyor 1 consists of a driving chain conveyor 11 (only one shown) installed parallel to the outside, and a driven chain conveyor 12 installed inside. Drive intermittently to
It is closed. On the other hand, the chain conveyor 12 is connected to a brake device, so that its movement requires a large force that resists the brake force.
上記チェーンコンベア１１上にはブツシュ片１１１が設
りてあり、これより進行方向に位置してチェーンコンベ
ア１２上にはブレーキ片１２１か設けてあって、これら
の間に上記鋼材Ｗの一端が挟持されている。すなわら、
チェーンコンベア１１の進行に伴なって、ブツシュ片に
押された鋼材Ｗが移動し、ブレーキ片１２１に当接する
。ブレーキ片１２１を介してチェーンコンベア１２を移
動せしめるには大きな力を要するから、結局鋼材Ｗは上
記ブツシュ片１１１とブレーキ片１２１間に強固に挟持
されて移動する。A bushing piece 111 is provided on the chain conveyor 11, and a brake piece 121 is provided on the chain conveyor 12 in the direction of movement from the bushing piece 111, between which one end of the steel material W is held. has been done. In other words,
As the chain conveyor 11 advances, the steel material W pushed by the bushing piece moves and comes into contact with the brake piece 121. Since a large force is required to move the chain conveyor 12 via the brake piece 121, the steel material W is ultimately firmly held between the bushing piece 111 and the brake piece 121 and moves.
かかる搬送コンベアとしては、例えば実公昭５３−１５
１１３号に開示されたものか使用できる。As such a conveyor, for example,
The one disclosed in No. 113 can be used.
なお、上記＋１ｆｆｌ送コンベア１は冷却装置（図略）
内に至っている。Note that the above +1ffl conveyor 1 is a cooling device (not shown).
It has reached within.
チェーンコンベア１１の外方近傍には所定位置に加熱装
置２Ａ、２Ｂが設けてあり、該装置２Ａ、２Ｂは上下方
向に対向するエアシリンダ２２を有する。各シリンダ２
２のピストンロッド先端には図略の絶縁材を介して通電
電極板２１が設けである。各電極板２１には加熱電源の
一方の極に至る通電線２１１が接続しである。鋼材Ｗの
他端にも上記と同−描込の電極板が設けてあり、これら
は加熱電源の他方の極に接続される。Heating devices 2A and 2B are provided at predetermined positions near the outside of the chain conveyor 11, and the devices 2A and 2B have air cylinders 22 facing each other in the vertical direction. Each cylinder 2
A current-carrying electrode plate 21 is provided at the tip of the piston rod 2 via an insulating material (not shown). Each electrode plate 21 is connected to a current-carrying wire 211 that reaches one pole of a heating power source. The other end of the steel material W is also provided with an electrode plate drawn in the same manner as above, and these are connected to the other pole of the heating power source.
しかして、上述の如くブツシュ片１１１とブレーキ片１
２］に挟持されて移送される鋼材Ｗが至ると、図示の如
く上記両エアシリンダ２２のピストンロッドが延び、電
極板２１が鋼材面に圧接せしめられる。この状態で′Ａ
ｖＪＷの両端の電極板２１間に通電すると、鋼材Ｗは抵
抗発熱して、その温度は例えば１１００℃程度に上昇す
る。Therefore, as described above, the bushing piece 111 and the brake piece 1
2], when the steel material W to be transferred reaches the steel material W, the piston rods of both air cylinders 22 extend as shown in the figure, and the electrode plate 21 is brought into pressure contact with the surface of the steel material. In this state 'A
When electricity is applied between the electrode plates 21 at both ends of vJW, the steel material W generates resistance heat and its temperature rises to, for example, about 1100°C.
加熱後はピストンロッドを収縮せしめて電源板２］を鋼
材Ｗより離す。そして、鋼材Ｗを冷Ｆ！Ｉ装置中へ搬送
する。冷却装置内で急冷せしめられて上記１ｔｉ１月Ｗ
は収縮するが、その両端は上記ブツシュ片１１１および
ブレーキ片１２１で固定挾持されているから、ねじれ等
を生じることはない。したがって、冷却後の矯正は不要
である。After heating, the piston rod is contracted and the power supply plate 2 is separated from the steel material W. Then, cool the steel material W! Transfer into the I device. The above 1ti January W was rapidly cooled in a cooling device.
Although it contracts, since its both ends are fixedly held by the bushing piece 111 and the brake piece 121, no twisting or the like occurs. Therefore, correction after cooling is not necessary.
以上の如く、本発明の熱ｌｌ！！Ｘ理装置は、熱間圧延
された鋼材を速やかに通電加熱することにより、加熱コ
ストの大幅な低減を実現することができ、かつ熱処理後
挟持しながら冷却するため矯正工程も不要である。As mentioned above, the heat of the present invention! ! The X-ray machine can realize a significant reduction in heating costs by rapidly heating hot-rolled steel materials with electricity, and also eliminates the need for a straightening process because the materials are cooled while being clamped after heat treatment.
第２図には他の実施例を示ず。図は鋼材Ｗの端部を挟持
するストレッチャーの挟持片３１Ａ、３１Ｂに通電電極
を設けた例を示す。すなわち、挟持片３１△、３１Ｂは
絶縁層３２を介して基部３３に固定されており、相対向
する挟持面３１ａには幅方向に断面矩形の凹所３１１が
形成しである。Other embodiments are not shown in FIG. The figure shows an example in which current-carrying electrodes are provided on the clamping pieces 31A and 31B of a stretcher that clamps the ends of the steel material W. That is, the clamping pieces 31Δ, 31B are fixed to the base 33 via the insulating layer 32, and a recess 311 having a rectangular cross section is formed in the width direction on the clamping surfaces 31a facing each other.
凹所３１１内にはこれに沿って柱状電極３４が配設して
あり、該電極３４はバネ部材３４により上記挟持面３１
ａより突出する方向に付勢されている。しかして、圧延
直後の鋼材Ｗを挟持片３１Ａ、３１Ｂにより挟持すると
、上記電極３４か鋼材面に弾接せしめられる。A columnar electrode 34 is disposed inside the recess 311 along the recess 311, and the electrode 34 is attached to the clamping surface 31 by a spring member 34.
It is biased in the direction of protruding from point a. When the steel material W immediately after rolling is held between the holding pieces 31A and 31B, the electrode 34 is brought into elastic contact with the surface of the steel material.
かかる構造によれば、圧延直後の鋼材Ｗを速やかに通電
加熱することができ、加熱後は挟持した鋼材Ｗに冷却水
を注いて急冷する。これにより、冷却時の鋼材のねじれ
等【（Ｊ、生じない。According to this structure, the steel material W immediately after rolling can be quickly heated with electricity, and after heating, cooling water is poured into the sandwiched steel material W to rapidly cool it. As a result, twisting of the steel material during cooling does not occur.
第１図は加熱装置を付設した搬送コンベアにより移送さ
れる鋼材の斜視図、第２図は他の実施例におけるストレ
ッチャー装置の挟持片の斜視図である。
１・・・・・・搬送コンベア（冷却手段）１１・・・・
・・主動チェーンコンベア１１１・・・・・・ブツシュ
片
１２・・・・・・従動チェーンコンベア１２１・・・・
・・ブレーキ片
２Ａ、２Ｂ・・・・・・加熱装置（加熱手段）２１・・
・・・・電極板（電極）
２１１・・・・・・通電線
２２・・・・・・エアシリンダ
３１Ａ、３１Ｂ・・・・・・ス１〜レッチャー挟持片３
１ａ・・・・・・挟持面
３４・・・・・・電４セ
３５・・・・・・ハネ部材
久１図FIG. 1 is a perspective view of a steel material being transferred by a conveyor equipped with a heating device, and FIG. 2 is a perspective view of a clamping piece of a stretcher device in another embodiment. 1... Conveyor (cooling means) 11...
... Main drive chain conveyor 111 ... Bush piece 12 ... Driven chain conveyor 121 ...
... Brake pieces 2A, 2B ... Heating device (heating means) 21 ...
... Electrode plate (electrode) 211 ... Current carrying wire 22 ... Air cylinder 31A, 31B ... S1 - Letcher clamping piece 3
1a...Pinching surface 34...Electricity 4C 35...Spring member structure 1
Claims (1)
した通電電極を有し、該電極を当接せしめて上記鋼材を
圧延直後の温度より高い温度に通電加熱する加熱手段と
、上記加熱手段による加熱終了後に、上記鋼材の両端部
をそれぞれ固定位置で挟持して急冷する冷却手段とを具
備する鋼材の熱処理装置。A heating means having current-carrying electrodes that can be brought into contact with both ends of a long steel material immediately after hot rolling, and heating the steel material with electricity to a temperature higher than the temperature immediately after rolling by bringing the electrodes into contact with each other; A heat treatment apparatus for a steel material, comprising a cooling means that clamps both ends of the steel material at fixed positions and rapidly cools the steel material after heating by the heating means is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200686A JPS62227030A (en) | 1986-03-28 | 1986-03-28 | Heat treatment device for steel products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200686A JPS62227030A (en) | 1986-03-28 | 1986-03-28 | Heat treatment device for steel products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227030A true JPS62227030A (en) | 1987-10-06 |
Family
ID=13476896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7200686A Pending JPS62227030A (en) | 1986-03-28 | 1986-03-28 | Heat treatment device for steel products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227030A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243725A (en) * | 1989-03-17 | 1990-09-27 | Hitachi Ltd | Method and apparatus for anneal-heat treating stainless steel and continuously annealing stainless steel strip |
| CN102312067A (en) * | 2010-07-02 | 2012-01-11 | 南通新兴特种金属材料有限公司 | Stainless steel hydrogen protective bright treatment furnace |
-
1986
- 1986-03-28 JP JP7200686A patent/JPS62227030A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243725A (en) * | 1989-03-17 | 1990-09-27 | Hitachi Ltd | Method and apparatus for anneal-heat treating stainless steel and continuously annealing stainless steel strip |
| CN102312067A (en) * | 2010-07-02 | 2012-01-11 | 南通新兴特种金属材料有限公司 | Stainless steel hydrogen protective bright treatment furnace |
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