JP2615719B2 - Pipe coil bright annealing method and pipe purging apparatus - Google Patents
Pipe coil bright annealing method and pipe purging apparatusInfo
- Publication number
- JP2615719B2 JP2615719B2 JP62324313A JP32431387A JP2615719B2 JP 2615719 B2 JP2615719 B2 JP 2615719B2 JP 62324313 A JP62324313 A JP 62324313A JP 32431387 A JP32431387 A JP 32431387A JP 2615719 B2 JP2615719 B2 JP 2615719B2
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- Japan
- Prior art keywords
- pipe
- coil
- gas
- processing chamber
- pipe coil
- 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.)
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Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は長い金属製の細径パイプをコイル状に巻回
してなるもの（以下これをパイプコイルという）を光輝
焼鈍する方法、および、その方法においてパイプ内のガ
スを置換するために使用するパイプ内パージング装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for brightly annealing a long metal thin pipe wound in a coil shape (hereinafter referred to as a pipe coil), and a method thereof. The present invention relates to an in-pipe purging device used for replacing gas in a pipe in a method.
［従来の技術とその問題点］ 一般に光輝焼鈍は被熱物をN2ガス,DXガス等の雰囲気
ガス中にて所定温度に加熱することにより被熱物表面の
酸化を防ぎその光輝状態を保つようにしている。そして
炉内の雰囲気ガスへの置換を完全ならしめるため炉内を
いつたん真空にしてからその炉内に雰囲気ガスをパージ
ングするようにもしていた。[Conventional technology and its problems] In general, bright annealing is performed by heating an object to be heated to a predetermined temperature in an atmosphere gas such as N 2 gas or DX gas, thereby preventing the surface of the object from being oxidized and maintaining its bright state. Like that. Then, in order to completely replace the atmosphere gas in the furnace, the inside of the furnace is evacuated once and then the atmosphere gas is purged into the furnace.
一方、例えばエアコンの熱交換器に使用せんとする直
径４〜10mm銅合金製の細径パイプでは表面が光輝状態で
あることは勿論、パイプ内に圧延油等の異物がなるべく
残留してないことが必要とされる。On the other hand, for example, in the case of a thin pipe made of copper alloy having a diameter of 4 to 10 mm to be used for a heat exchanger of an air conditioner, the surface is in a brilliant state and, of course, foreign matter such as rolling oil does not remain in the pipe as much as possible. Is required.
ところが従来の上記焼鈍方法にてパイプコイルを焼鈍
した場合にはパイブ内のガスが置換されないためにパイ
プ内に圧延油が多量に付着したままとなることがあっ
た。そこで従来からパイプコイルの一端から雰囲気ガス
を該パイプ内に圧送しパイプ内を強制ガス置換する方法
として特公昭58−48013、特開昭54−48620等の技術があ
る。しかし、特公昭58−48013の技術は炉内に装入され
たパイプコイルの一端に排気ポンプを接続し、該排気ポ
ンプにより炉内ガスをこのパイプコイル内を通し排出さ
せるものであり、パイプコイルの両端の圧力差はせいぜ
い1kg/cm2程度した得られず、パイプコイル内のガスを
一掃するのに長時間が必要であった。また、特開昭54−
48620の技術はパージガスを封入したタンクをパイプコ
イルと一緒に炉内に装入し、該タンクからパイプコイル
内にガスを噴出させパイプ内の油を排出させるものであ
り、パイプコイルの両端の圧力差はタンク内のガスが排
出させるに伴いその圧力差は徐々に小さくなり、特公昭
58−48013の技術と同様パイプコイル内のガスを一掃す
るのに長時間が必要であり、場合によってはパイプ内面
に付着している圧延油を除去することはできないことも
あった。However, when the pipe coil is annealed by the above-described conventional annealing method, a large amount of rolling oil may remain in the pipe because the gas in the pipe is not replaced. Conventionally, as a method of forcing atmospheric gas from one end of a pipe coil into the pipe and forcibly replacing the inside of the pipe, there are techniques such as Japanese Patent Publication No. 58-48013 and Japanese Patent Application Laid-Open No. 54-48620. However, in the technique of Japanese Patent Publication No. 58-48013, an exhaust pump is connected to one end of a pipe coil inserted into a furnace, and the exhaust pump allows gas in the furnace to pass through the pipe coil and discharge the gas. The pressure difference between the two ends was at most about 1 kg / cm 2 , and it took a long time to clear the gas in the pipe coil. Also, Japanese Patent Application Laid-Open
The technique of 48620 is to charge a tank filled with purge gas into a furnace together with a pipe coil, and to eject gas from the tank into the pipe coil to discharge oil in the pipe. The pressure difference gradually decreases as the gas in the tank is discharged.
As in the technique of 58-48013, it took a long time to purge the gas in the pipe coil, and in some cases, it was not possible to remove the rolling oil adhering to the inner surface of the pipe.
［問題点を解決するための手段］ この発明のパイプコイル光輝焼鈍方法は上記問題点を
解決しようとするもので、金属製の細径パイプをコイル
状に巻回してなるパイプコイルを所定温度に予熱した
後、該パイプコイルを収容する処理室を真空にしその真
空状態の基で該パイプコイルの一端に処理室の外部から
パージガスを送給し該パイプコイルの他端より排出させ
るようにしたことを特徴とするものである。[Means for Solving the Problems] The pipe coil bright annealing method of the present invention is intended to solve the above problems, and a pipe coil formed by winding a metal small-diameter pipe in a coil shape to a predetermined temperature. After preheating, the processing chamber accommodating the pipe coil is evacuated, and a purge gas is supplied from one end of the processing chamber to one end of the pipe coil under the vacuum state and discharged from the other end of the pipe coil. It is characterized by the following.
またこの発明のパイプ内パージング装置は上記焼鈍方
法にてパイプ内のガス置換を簡易ならしめんとするもの
で、金属製の細径パイプをコイル状に巻回してなるパイ
プコイルが乗載されるトレイと、該トレイをその搬送路
上の定位置で不動に停止させる定位置停止装置と、該ト
レイ上に固設されていて前記パイプコイルの一端が接続
されるパージガス供給用口金と、該口金と相対するよう
に炉壁に進退自在に設けられたパージガス供給管とより
なることを特徴とするものである。Further, the purging apparatus in a pipe according to the present invention facilitates gas replacement in the pipe by the above annealing method, and a pipe coil formed by winding a metal small diameter pipe into a coil shape is mounted thereon. A tray, a fixed position stop device for immovably stopping the tray at a fixed position on the transport path, a purge gas supply base fixed to the tray and connected to one end of the pipe coil; A purge gas supply pipe is provided so as to be able to move forward and backward on the furnace wall so as to face each other.
［作用］ 予熱したパイプコイルを真空状態にすることによりパ
イプ内に付着している圧延油等がベーパ（沸騰）し気散
し易くなつたところへパージガスが送給されパイプ内か
ら圧延油等が一掃できる。[Operation] By setting the preheated pipe coil to a vacuum state, a purge gas is supplied to a place where the rolling oil or the like adhering to the inside of the pipe is easily vaporized (boiled) and diffused, so that the rolling oil or the like is discharged from the inside of the pipe. Can be wiped out.
［実施例］ 次に図面と共にこの発明の一実施例を説明する。第１
図にこの光輝焼鈍方法を実施するためのローラーハース
式連続焼鈍装置の全体を縦断面図にて示す。図中、100
は入側テーブル、200は第１真空処理室、300は第２真空
処理室、400は加熱室、500は強制冷却室、600は後室、7
00は出側テーブルである。これら各室は一直線状に配設
され、各室床を搬送用ローラ1,1・・・・が連ねてい
る。Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. First
FIG. 1 is a longitudinal sectional view of the entire roller hearth continuous annealing apparatus for performing the bright annealing method. In the figure, 100
Is the entrance table, 200 is the first vacuum processing chamber, 300 is the second vacuum processing chamber, 400 is the heating chamber, 500 is the forced cooling chamber, 600 is the rear chamber, 7
00 is a delivery table. Each of these chambers is arranged in a straight line, and transport rollers 1, 1,...
全長数千メートルの金属製を細径パイプをコイル状に
巻回してなるパイプコイル2,2・・・・は第３図、第４
図にも示したように正方形状のトレイ３上に横置状に乗
載されて搬送される。この実施例ではトレイ３上に支柱
4,4・・・・を樹立して棚板5,5を水平に支持し該棚板5,
5上にも横置することにより該パイプコイルを３段に乗
載させている。またトレイ３の一辺にバージガス供給の
ための口金６を固設し、該口金６に下端を嵌着して配ガ
ス管７を垂直に樹立し、該配ガス管７に形成した接続口
8,8,8に夫々パイプコイル2,2,2の一端を嵌着接合する。
口金６は炉内壁と相対する垂直面に外方へ円錐形に拡開
した接続口９が形成されている。Pipe coils 2, 2 ... formed by winding a small-diameter pipe into a coil of a metal with a total length of several thousand meters are shown in Figs.
As shown in the figure, the sheet is horizontally mounted on the square tray 3 and transported. In this embodiment, a support is provided on the tray 3.
..., and establish the shelf 5,5 horizontally to support the shelf 5,5
The pipe coil is mounted on three stages by being placed horizontally on top of the pipe coil 5. Further, a base 6 for supplying a barge gas is fixed to one side of the tray 3, and a lower end is fitted to the base 6 to establish a gas distribution pipe 7 vertically, and a connection port formed in the gas distribution pipe 7 is formed.
One ends of the pipe coils 2, 2, 2 are fitted and joined to 8, 8, 8, respectively.
The base 6 has a connection port 9 formed in a vertical plane facing the inner wall of the furnace and expanding outward in a conical shape.
入側テーブル100の次に設けられている第１真空処理
室200はその入口および出口に内部を気密に閉塞し得る
よう開閉扉10,10′が設けられている。そして内部には
熱源としてのラジアントチユーブ12が両側壁の内側に配
設され、天井部には炉内ガスを撹拌するためのフアン13
が設けられている。また、第２真空処理室300は入口お
よび出口に同じく内部を気密に閉塞し得るように開閉扉
11,11′が設けられている。そして該第２真空処理室300
には、第４図に示したように、トレイ３を定位置に動か
ないよう停止させる定位置停止装置16と前記口金６の接
続口９に相対するように炉壁に進退自在にパージガス供
給管15が設けられる。即ち、定位置停止装置14は、搬送
用ローラ1,1・・・・のパスラインよ少し低位置にてト
レイ３を前後から挟み得る間隔を置いて炉幅方向の一対
の横軸16,17を夫々回転自在に横架し、該横軸16,17の炉
外突出端に半径方向のレバー18,19を固設し該レバー18,
19にエアーシリンダ20,21を連結し、該横軸16,17の中間
部にストツパ22,23を設け、エアーシリンダ20,21を作動
させ横軸16,17を回転させることにより該ストツパ22,23
が搬送用ローラ1,1・・・・のパスラインより突出して
トレイ３の前縁および後縁に当接し該トレイ３を前後よ
り挟むようにして該トレイ３を定位置で停止させられる
ようにしている。また、両側壁を貫通しシリンダ24,25,
26の作動で炉内に進退動し得るように設けられたロツド
27,28,29の先端には定位置にて停止した前記トレイ３を
不動に固定するため押圧片30,31,32が設けられている。
一方パージガス供給管15は炉壁を貫通し、炉外突出端に
設けられたシリンダ33の作動により進退動する。該供給
管15の先端には前記接続口９に合着するプラグ34が設け
られている。35はガス発生器（図示せず）から該供給管
15にパージガスを供給するホースを示す。なお供給管15
の炉壁貫通部は、その気密性を保つためにＯリング36お
よびベヤリング37が設けられ、さらにその過熱を防ぐた
めに冷却水ジヤケツト38が設けられている。そしてこの
ような気密を保持するための炉壁貫通部の構造は前記横
軸16,17およびロツド27,28,29の炉壁貫通部にも設けら
れている。The first vacuum processing chamber 200 provided next to the entrance table 100 is provided with opening / closing doors 10 and 10 'at its inlet and outlet so that the inside can be hermetically closed. A radiant tube 12 as a heat source is disposed inside both side walls, and a fan 13 for stirring gas in the furnace is provided on the ceiling.
Is provided. In addition, the second vacuum processing chamber 300 has an opening and closing door at the entrance and the exit so that the inside can be airtightly closed.
11,11 'are provided. And the second vacuum processing chamber 300
As shown in FIG. 4, a purge gas supply pipe movably to and from the furnace wall so as to be opposed to a fixed position stopping device 16 for stopping the tray 3 so as not to move to a fixed position and the connection port 9 of the base 6. 15 are provided. That is, the fixed-position stopping device 14 is provided with a pair of horizontal shafts 16, 17 in the furnace width direction at a position slightly lower than the pass line of the conveying rollers 1, 1,. Are rotatably mounted horizontally, and radial levers 18 and 19 are fixedly mounted on the protruding ends of the horizontal shafts 16 and 17 outside the furnace.
The air cylinders 20 and 21 are connected to 19, and stoppers 22 and 23 are provided in the middle part of the horizontal shafts 16 and 17, and the air cylinders 20 and 21 are operated to rotate the horizontal shafts 16 and 17 to stop the stoppers 22 and 21. twenty three
Project from the path line of the conveying rollers 1, 1... And come into contact with the front edge and the rear edge of the tray 3 so as to sandwich the tray 3 from front and rear so that the tray 3 can be stopped at a fixed position. . In addition, cylinders 24, 25,
A rod provided to move in and out of the furnace by the operation of 26
Pressing pieces 30, 31, and 32 are provided at the leading ends of 27, 28, and 29 to fix the tray 3 stopped at a fixed position.
On the other hand, the purge gas supply pipe 15 penetrates through the furnace wall and moves forward and backward by the operation of a cylinder 33 provided at a protruding end outside the furnace. A plug 34 is provided at the end of the supply pipe 15 to be joined to the connection port 9. 35 is a supply pipe from a gas generator (not shown)
15 shows a hose for supplying a purge gas. Supply pipe 15
The furnace wall penetration is provided with an O-ring 36 and a bearing 37 in order to maintain the airtightness, and a cooling water jacket 38 in order to prevent overheating. The structure of the furnace wall penetration part for maintaining such airtightness is also provided in the furnace wall penetration parts of the horizontal shafts 16 and 17 and the rods 27, 28 and 29.
加熱室400は断熱室によつて構築され、入口と出口に
夫々断熱性の開閉扉40,41が設けられ、天井部には撹拌
用のフアン42が設けられ、両側壁内側にはラジアントユ
ーブ（図示せず）が設けられている。The heating chamber 400 is constructed by a heat insulating chamber, and heat-insulating doors 40 and 41 are provided at an inlet and an outlet, respectively, a fan 42 for stirring is provided at a ceiling portion, and a radiant tube is provided at both inner side walls. (Not shown).
強制冷却室500は、天井部に設けられたフアン43,44に
より室内雰囲気ガスをクーラ（図示せず）に循環させて
冷却しそれを室内のパイプコイル2,2・・・・に吹付け
ている。The forced cooling chamber 500 is cooled by circulating room atmosphere gas to a cooler (not shown) by fans 43 and 44 provided on the ceiling, and spraying the gas onto the pipe coils 2, 2. I have.
また、後室600は雰囲気ガスを置換するために設けら
れたもので強制冷却室500と開閉扉45により仕切られた
出口には開閉扉46が設けられている。The rear chamber 600 is provided for replacing atmospheric gas, and an opening / closing door 46 is provided at an outlet partitioned by the forced cooling chamber 500 and the opening / closing door 45.
さて、このように構成した連続焼鈍装置にてパイプコ
イル2,2・・・・を光輝焼鈍するに際しては図示したよ
うに予めトレイ３上のパイプコイル2,2,2の一端を接続
口8,8,8に接続しておき、これを入側テーブル100から第
１真空処理室200に装入する。そして開閉扉10,10′を閉
じ該処理室200内を真空ポンプ（図示せず）に継いで抜
気する。そして該処理室200に雰囲気ガスとしてDXガス
（発熱形ガス）を供給することにより復圧する。第５図
にこの処理室の圧力変化とパイプコイル2,2,2の温度カ
ーブを示す。こうして第１真空処理室200をDXガスに置
換できたところで、ラジアントチユーブ12によりパイプ
コイル2,2,2を概略200℃程に予熱する。それから開閉扉
10′,11を開けてこのパイプコイル2,2,2を第２真空処理
室300に移動し開閉扉11,11′を閉じる。第２真空処理室
300に装入されたパイプコイル2,2,2は、前記ストツパ2
2,23によりトレイ３が挟持されると同時に押圧片30,31,
32によつて定位置に固定される。そこで再び該処理室30
0を真空ポンプに継いで抜気する。そしてこの真空状態
の基で口金６に合着したパージガス供給管15よりDXガス
を供給し配ガス管７を介してパイプコイル2,2,2の一端
より該各パイプ内にDXガスを供給する。そのときパイプ
内面に付着していた圧延油は予熱により温度が高くなつ
ており、また気圧が低いことから容易にベーパし気化し
ているためにパイプの一端からDXガスが供給されるにつ
れて他端に追いやられ該処理室300内に排出される。こ
のため該処理室300内の気圧は徐々に上昇し復元する。
こうして処理室300が復元したら再度該処理室300を真空
状態に抜気し圧延油の蒸気を該処理室300内から一掃し
再度DXガスを該処理室300に供給することにより復圧す
る。かくしてパイプコイル2,2,2はその内面および外面
とともに付着していた圧延油等が一掃される。次いでこ
のパイプコイル2,2,2を加熱室400に移動しDXガス雰囲気
の量で所定の焼鈍温度に無酸化状態で加熱均熱する。そ
して、強制冷却室500に移動し70℃以下に冷却し後室600
に移す。後室600では冷却室500より流入した雰囲気ガス
を空気に置換し開閉扉46を開けてパイプコイルを出側テ
ーブル700上に抽出するものである。When the bright annealing of the pipe coils 2, 2,... Is performed by the continuous annealing apparatus configured as described above, one end of the pipe coils 2, 2, 2 on the tray 3 is connected in advance to the connection ports 8, 8 and 8 are connected to the first vacuum processing chamber 200 from the input side table 100. Then, the doors 10 and 10 'are closed and the inside of the processing chamber 200 is connected to a vacuum pump (not shown) to evacuate. Then, the pressure is restored by supplying DX gas (exothermic gas) as an atmospheric gas to the processing chamber 200. FIG. 5 shows a pressure change in the processing chamber and a temperature curve of the pipe coils 2, 2, 2. When the first vacuum processing chamber 200 has been replaced with the DX gas in this way, the radiant tube 12 preheats the pipe coils 2, 2, 2 to approximately 200 ° C. Then the door
The pipe coils 2, 2, 2 are moved to the second vacuum processing chamber 300 by opening 10 ', 11 and the doors 11, 11' are closed. 2nd vacuum processing chamber
The pipe coils 2, 2, 2 charged in 300 are
At the same time that the tray 3 is clamped by the pressing pieces 30 and 31,
It is fixed in position by 32. Therefore, the processing chamber 30
Connect 0 to a vacuum pump and evacuate. Then, under this vacuum state, DX gas is supplied from a purge gas supply pipe 15 attached to the base 6, and DX gas is supplied into each pipe from one end of the pipe coil 2, 2, 2 via a gas distribution pipe 7. . At that time, the temperature of the rolling oil attached to the inner surface of the pipe was increased by preheating, and it was easily vaporized and vaporized due to the low air pressure. And discharged into the processing chamber 300. For this reason, the pressure in the processing chamber 300 gradually rises and is restored.
When the processing chamber 300 is restored in this way, the processing chamber 300 is evacuated again to a vacuum state, the vapor of the rolling oil is wiped out of the processing chamber 300, and the pressure is restored by supplying the DX gas to the processing chamber 300 again. Thus, rolling oil and the like adhering to the inner and outer surfaces of the pipe coils 2, 2, 2 are removed. Next, the pipe coils 2, 2, 2 are moved to the heating chamber 400 and heated and soaked in a non-oxidized state at a predetermined annealing temperature by the amount of the DX gas atmosphere. Then, it is moved to the forced cooling chamber 500, cooled to 70 ° C or less, and
Transfer to In the rear chamber 600, the atmospheric gas flowing from the cooling chamber 500 is replaced with air, the opening and closing door 46 is opened, and the pipe coil is extracted on the outlet table 700.
［発明の効果］ 以上実施例について説明したように、この発明のパイ
プコイル光輝焼鈍方法は、パイプコイルを予熱し、しか
も真空状態の基で該パイプコイルの一端に外部からパー
ジガスを供給するものであるので、パイプ内に付着して
いる圧延油等をきれいに一掃することができ品質を向上
させる。また、これに使用されるパイプ内パージング装
置によれば、処理室の搬送路上にあるパイプコイルに簡
単にして安全にパージガスを供給できるため、作業性を
向上させるなど有益を効果がある。[Effects of the Invention] As described above with reference to the embodiments, the bright annealing method for a pipe coil according to the present invention preheats the pipe coil and supplies a purge gas to one end of the pipe coil from the outside under a vacuum state. As a result, rolling oil and the like adhering to the inside of the pipe can be wiped out cleanly, thereby improving the quality. Further, according to the in-pipe purging device used for this, the purge gas can be simply and safely supplied to the pipe coil on the transport path of the processing chamber, and thus has an advantageous effect such as improvement of workability.
図面はこの発明の一実施例を示したもので、第１図は連
続焼鈍装置の全体の縦断面図、第２図はその第１真空処
理室の横断面図、第３図はトレイ上のパイプコイルの正
面図、第４図は第２真空処理室の水平断面図、第５図は
処理室の圧力変化とパイプコイルの温度カーブを示した
線図である。 200……第１真空処理室、300……第２真空処理室、400
……加熱室、500……強制冷却室、２……パイプコイ
ル、３……トレイ、６……口金、７……配ガス管、９…
…接続口、10,11……開閉扉、14……定位置停止装置、1
5……パージガス供給管。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of the whole continuous annealing apparatus, FIG. 2 is a transverse sectional view of the first vacuum processing chamber, and FIG. FIG. 4 is a front view of a pipe coil, FIG. 4 is a horizontal sectional view of a second vacuum processing chamber, and FIG. 5 is a diagram showing a pressure change of the processing chamber and a temperature curve of the pipe coil. 200: first vacuum processing chamber, 300: second vacuum processing chamber, 400
… Heating room, 500… forced cooling room, 2… pipe coil, 3… tray, 6… base, 7… gas distribution pipe, 9…
… Connection port, 10,11 …… Opening / closing door, 14 …… Position stop device, 1
5 ... Purge gas supply pipe.
Claims (2)
なるパイプコイルを所定温度に予熱した後、該パイプコ
イルを収容する処理室を真空にしその真空状態の基で該
パイプコイルの一端に処理室の外部からパージガスを送
給し該パイプコイルの他端より排出させるようにしたこ
とを特徴とするパイプコイル光輝焼鈍方法。After a pipe coil formed by winding a small-diameter pipe made of metal into a coil shape is preheated to a predetermined temperature, a processing chamber accommodating the pipe coil is evacuated, and the pipe coil is evacuated under the vacuum state. A bright annealing method for a pipe coil, wherein a purge gas is supplied to one end from outside the processing chamber and discharged from the other end of the pipe coil.
なるパイプコイルが乗載されるトレイと、該トレイをそ
の搬送路上の定位置で不動に停止させる定位置停止装置
と、該トレイ上に固設されていて前記パイプコイルの一
端が接続されるパージガス供給用口金と、該口金と相対
するように炉壁に進退自在に設けられたパージガス供給
管とよりなることを特徴としたパイプ内パージング装
置。2. A tray on which a pipe coil formed by winding a small-diameter pipe made of metal in a coil shape is mounted, a fixed-position stop device for stopping the tray at a fixed position on the transport path, and A purge gas supply base fixed to a tray and connected to one end of the pipe coil, and a purge gas supply pipe provided on the furnace wall so as to be capable of moving forward and backward so as to face the base. Purging device in pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62324313A JP2615719B2 (en) | 1987-12-21 | 1987-12-21 | Pipe coil bright annealing method and pipe purging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62324313A JP2615719B2 (en) | 1987-12-21 | 1987-12-21 | Pipe coil bright annealing method and pipe purging apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01165723A JPH01165723A (en) | 1989-06-29 |
| JP2615719B2 true JP2615719B2 (en) | 1997-06-04 |
Family
ID=18164403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62324313A Expired - Fee Related JP2615719B2 (en) | 1987-12-21 | 1987-12-21 | Pipe coil bright annealing method and pipe purging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2615719B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557263A (en) * | 1991-09-03 | 1993-03-09 | Daido Steel Co Ltd | Device for heat-treating pipe coil and method for removing oil in the pipe coil |
| JPH06128644A (en) * | 1992-10-19 | 1994-05-10 | Daido Steel Co Ltd | Heat treatment apparatus for pipe coil |
| JPH06256855A (en) * | 1993-03-01 | 1994-09-13 | Daido Steel Co Ltd | Heat treatment apparatus for pipe coil and method for removing oil from pipe coil |
| JP2531518Y2 (en) * | 1993-05-27 | 1997-04-02 | 中外炉工業株式会社 | Purging device in furnace tube in roller hearth type furnace |
| JP2897624B2 (en) * | 1993-11-25 | 1999-05-31 | 大同特殊鋼株式会社 | Purge gas supply device for tubing |
| EP0659907B1 (en) * | 1993-11-11 | 1999-07-07 | Daidotokushuko Kabushiki Kaisha | Oil removing apparatus for a pipe coil |
| JP2897713B2 (en) * | 1996-02-19 | 1999-05-31 | 大同特殊鋼株式会社 | Apparatus and method for purging pipe material like pipe coil |
| DE10144509C1 (en) * | 2001-09-10 | 2003-06-18 | Junker Gmbh O | An oil removal device for cleaning coils in the form of coils |
| CN105886719A (en) * | 2016-05-25 | 2016-08-24 | 内蒙古包钢钢联股份有限公司 | Method for controlling 16 Mn seamless steel tube blank heating |
| CN113088662B (en) * | 2021-04-30 | 2023-03-28 | 江西红睿马钢管股份有限公司 | DX gas carbon potential control method in bearing steel pipe anaerobic spheroidizing annealing process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418410A (en) * | 1977-07-12 | 1979-02-10 | Trefimetaux | Method and apparatus for circulating gas within pipes during heat treatment thereof |
| JPS5448620A (en) * | 1977-09-26 | 1979-04-17 | Mitsubishi Metal Corp | Annealing of long metal tube |
| JPS5848013A (en) * | 1981-09-18 | 1983-03-19 | Toshiba Corp | Laser device |
| JPS6033376A (en) * | 1983-07-30 | 1985-02-20 | Nachi Fujikoshi Corp | Vacuum degreasing apparatus of oils and fats |
| JPS60174835A (en) * | 1984-02-21 | 1985-09-09 | Kurosaki Rokougiyou Kk | Continuous atmosphere annealing furnace of carriage type for strip coil |
| JPS62256918A (en) * | 1986-04-28 | 1987-11-09 | Kobe Steel Ltd | Heat treatment of long-sized pipe material |
-
1987
- 1987-12-21 JP JP62324313A patent/JP2615719B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01165723A (en) | 1989-06-29 |
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| LAPS | Cancellation because of no payment of annual fees |