JPH0748620A - Method and apparatus for induction-hardening bar-like work while shifting - Google Patents
Method and apparatus for induction-hardening bar-like work while shiftingInfo
- Publication number
- JPH0748620A JPH0748620A JP5212175A JP21217593A JPH0748620A JP H0748620 A JPH0748620 A JP H0748620A JP 5212175 A JP5212175 A JP 5212175A JP 21217593 A JP21217593 A JP 21217593A JP H0748620 A JPH0748620 A JP H0748620A
- Authority
- JP
- Japan
- Prior art keywords
- work
- quenching
- peripheral surface
- jacket
- axis
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、棒状ワーク（例えばボ
ールネジのように外周面に凹凸があるもの、或いは鋼管
のようなパイプをも含む。なお、以下棒状ワークを単に
ワークともいう）の高周波移動焼入方法および装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency of a rod-shaped work (for example, a ball screw having an uneven outer peripheral surface or a pipe such as a steel pipe. The rod-shaped work is simply referred to as a work hereinafter). The present invention relates to a moving quenching method and apparatus.
【０００２】[0002]
【従来の技術】以下、図面を参照して従来の技術を説明
する。図９はワークの従来の高周波移動焼入方法の説明
図であって、例えば鋼製棒状のワークＶの外周面Ｖ2 を
移動焼入するには、同図に示すように、螺旋状に巻回さ
れた高周波加熱コイル（以下高周波加熱コイルを単に加
熱コイルともいう）1 と、環状に形成された焼入液噴射
用ジャケット2 との内側にワークＶを挿入後水平に配置
し、両端をセンタ3 および6 によって支持する。5 はセ
ンタ3 を回転させるモータであり、4 はモータ5の回転
をセンタ3 に伝えるとと共にセンタ3 を保持し且つ進退
させるヘッドストックである。7 はモータ8 の回転をセ
ンタ6 に伝えると共にセンタ6 を保持し且つ進退させる
テールストックである。2. Description of the Related Art A conventional technique will be described below with reference to the drawings. FIG. 9 is an explanatory view of a conventional high-frequency induction hardening method of a work. For example, in order to move and harden the outer peripheral surface V2 of a steel rod-shaped work V, as shown in the figure, spiral winding is performed. After inserting the work V inside the high-frequency heating coil 1 (hereinafter, the high-frequency heating coil is also simply referred to as a heating coil) 1 and the quenching liquid jetting jacket 2 formed in an annular shape, the work V is placed horizontally, and both ends are centered 3 And by 6 support. Reference numeral 5 is a motor for rotating the center 3, and 4 is a headstock for transmitting the rotation of the motor 5 to the center 3 and for holding and moving the center 3 forward and backward. Reference numeral 7 is a tailstock that transmits the rotation of the motor 8 to the center 6 and holds the center 6 and moves it back and forth.
【０００３】ワークＶの外周面Ｖ2 （以下ワークの外周
面をワーク周面ともいう）を移動焼入するには、加熱コ
イル1 およびジャケット2 を図示しない移動装置によっ
てセンタ3 の位置まで移動させたのち、モータ5 および
8 によってワークＶを軸芯線Ｖ1 を中心として例えば矢
印Ｒの方向に回転させながら、加熱コイル1 に高周波電
流を通電し、また、ジャケット2 から焼入液Ｌを噴射し
ながら、加熱コイル1とジャケット2 とを同期して矢印
Ｑの方向に移動させると、ワーク周面Ｖ2 の焼入が行わ
れる。To move and harden the outer peripheral surface V2 of the work V (hereinafter, the outer peripheral surface of the work is also referred to as the work peripheral surface), the heating coil 1 and the jacket 2 were moved to the position of the center 3 by a moving device (not shown). After that, the motor 5 and
While rotating the work V about the axis V1 by the 8 in the direction of arrow R, for example, a high frequency current is applied to the heating coil 1, and the quenching liquid L is jetted from the jacket 2 while the heating coil 1 and the jacket are being injected. When 2 is moved in the direction of arrow Q in synchronization with each other, the work peripheral surface V2 is quenched.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、ワーク
Ｖの上記した従来の高周波移動焼入方法には、以下に述
べる問題がある。即ち、ワークＶの両端をセンタ3 およ
び6 が互いに相手のセンタに向かって押し合っているの
で、もしもセンタ3 と6 との回転速度が一致してないと
きには、ワークＶに対して曲げの力がかかり、特に、加
熱コイル1 によって加熱されている部分は曲がりやす
い。このようにワークＶが曲がった状態で加熱、冷却に
よる焼入が行われると、焼入終了後のワークＶの歪みが
大きい。例えば全長1.1m、厚み2.6mm 、外径35mmの鋼管
においては、3 〜5mm （トータル インジィケータ リ
ーディング T.R.I. ）の歪が発生している。However, the above-mentioned conventional high-frequency induction hardening method for the work V has the following problems. That is, since the centers 3 and 6 press the both ends of the work V toward each other's center, if the rotation speeds of the centers 3 and 6 do not match, the bending force is applied to the work V. In particular, the portion heated by the heating coil 1 is easily bent. When quenching by heating and cooling is performed with the work V bent in this way, the strain of the work V after the quenching is large. For example, in a steel pipe with a total length of 1.1 m, a thickness of 2.6 mm, and an outer diameter of 35 mm, strain of 3 to 5 mm (total indicator leading TRI) occurs.
【０００５】本発明は上記事情に鑑みて創案されたもの
であって、棒状ワークの移動焼入後の歪みを小さくする
ことができる棒状ワークの高周波移動焼入方法および装
置を提供することを目的としている。The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a high-frequency moving hardening method and apparatus for a rod-shaped work which can reduce distortion after the moving hardening of the rod-shaped work. I am trying.
【０００６】[0006]
【課題を解決するための手段】上記問題を解決するため
に、本発明の棒状ワークの高周波移動焼入方法は、棒状
ワークが水平であると共にワークの軸芯線を中心として
回転自在且つ前記軸芯線の方向に移動自在であるように
ワークの外周面のみを支持する第１工程と、前記周面の
みを支持した状態のまま、ワークの一端を把持し、ワー
クを前記軸芯線を中心として回転させると共にワークを
前記軸芯線の方向に移動させながら、高周波加熱コイル
によってワーク周面を加熱後、焼入液噴射用ジャケット
から焼入液を噴射して加熱されたワーク周面を冷却する
第２工程とを備えている。In order to solve the above-mentioned problems, the method of induction hardening of a rod-shaped work according to the present invention is such that the rod-shaped work is horizontal and is rotatable around the axis of the work and the axis of the axis is First step of supporting only the outer peripheral surface of the work so as to be movable in the direction of, and holding one end of the work while keeping only the peripheral surface supported, and rotating the work about the axis. A second step of cooling the heated work peripheral surface by injecting the quenching liquid from the quenching liquid injection jacket after heating the work peripheral surface by the high-frequency heating coil while moving the work in the direction of the axis together with It has and.
【０００７】上記問題を解決するために、本発明の棒状
ワークの高周波移動焼入装置は、ワークが水平であると
共にワークの軸芯線を中心として回転自在且つ前記軸芯
線の方向に移動自在であるようにワークの外周面のみを
支持するワーク支持装置と、前記周面に接近配設されて
前記周面を加熱する高周波加熱コイルと、前記加熱コイ
ルの前記軸芯線方向側に配設されて前記周面に焼入液を
噴射する複合ジャケットと、ワークの一端を把持し、ワ
ークを軸芯線を中心として回転させると共に、ワークを
前記軸芯線の方向に移動させる回転移動手段とを具備
し、前記複合ジャケットは、焼入液の噴出力が強く、比
較的少ない液量でワークを急冷する急冷ジャケットと、
急冷ジャケットの反加熱コイル側に配設され、焼入液の
噴出力が弱く、比較的多い液量でワークを徐冷する徐冷
ジャケットとを備えている。In order to solve the above problems, the high-frequency moving and quenching apparatus for a rod-shaped work according to the present invention is horizontal, rotatable about the axis of the work, and movable in the direction of the axis. As described above, the work supporting device that supports only the outer peripheral surface of the work, the high-frequency heating coil that is disposed close to the peripheral surface to heat the peripheral surface, and the high-frequency heating coil that is disposed on the axial core line side of the heating coil A composite jacket for injecting the quenching liquid on the peripheral surface; and a rotation moving means for holding one end of the work and rotating the work about the axis, and moving the work in the direction of the axis. The composite jacket has a strong jetting force of quenching liquid, and a quenching jacket that quenches the work with a relatively small amount of liquid,
The quenching jacket is provided on the side opposite to the heating coil and has a slow cooling jacket which has a weak jetting force of the quenching liquid and gradually cools the work with a relatively large amount of liquid.
【０００８】[0008]
【実施例】以下、図面を参照して本発明の高周波移動焼
入方法を実現することができる高周波移動焼入装置の一
実施例を説明する。この実施例の装置は、水平に配置し
た棒状ワークに軸芯線方向の圧力も張力も加えない状態
で外周面に移動焼入を行う装置である。この実施例の装
置によって移動焼入するワークとしては、従来の移動焼
入方法によると焼入後の歪みが比較的大きい鋼管を採り
上げた。そして、この装置を使用して鋼管の外周面を移
動焼入した場合には、歪みを少なくすることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an induction moving hardening apparatus capable of realizing the induction moving hardening method of the present invention will be described below with reference to the drawings. The apparatus of this embodiment is an apparatus for moving and quenching the outer peripheral surface of a horizontally arranged rod-shaped work without applying pressure or tension in the axial direction. As a work piece to be subjected to the moving quenching by the apparatus of this embodiment, a steel pipe having a relatively large strain after the quenching is taken according to the conventional moving quenching method. When this apparatus is used to move and quench the outer peripheral surface of the steel pipe, distortion can be reduced.
【０００９】図１〜図８は前記一実施例の移動焼入装置
を説明するための図面であって、図１の（ａ）は一部断
面正面説明図であってワークを焼入している状態を示
し、（ｂ）は（ａ）の矢視Ａ側面説明図、（ｃ）は
（ｂ）のＢ−Ｂ線矢視断面説明図、図２はワークを焼入
待機ステーションに搬入した状態での移動焼入装置の一
部断面正面説明図、図３はワークが焼入開始位置に移動
した状態での移動焼入装置の一部断面正面説明図、図４
はワークが焼入終了ステーションにきた状態での移動焼
入装置の一部断面正面説明図、図５の（ａ）は急冷ジャ
ケットの斜視図、（ｂ）は徐冷ジャケットの斜視図、
（ｃ）は急冷ジャケットのノズルの斜視図、（ｄ）は急
冷ジャケットの正面図、図６はワーク把持回転機構の縦
断面説明図、図７の（ａ）は第１ワーク受けの正面図、
（ｂ）は（ａ）のＣ−Ｃ線矢視断面図、図８（ａ）は第
２ワーク受けの正面図、（ｂ）は（ａ）の矢視Ｄ側面図
である。FIGS. 1 to 8 are views for explaining the moving and quenching apparatus of the above-described embodiment, and FIG. 1A is a front view of a partial cross section for quenching a workpiece. FIG. 2B shows a side view of FIG. 2A, and FIG. 2C is a cross-sectional view taken along the line BB of FIG. 2B. 4 is a partial cross-sectional front explanatory view of the moving and quenching apparatus in the state, FIG. 3 is a partial cross-sectional front explanatory view of the moving and quenching apparatus in a state where the workpiece is moved to the quenching start position, and FIG.
Is a partial cross-sectional front view of the moving and quenching apparatus when the work has arrived at the quenching termination station, FIG. 5A is a perspective view of the rapid cooling jacket, and FIG. 5B is a perspective view of the slow cooling jacket.
(C) is a perspective view of the nozzle of the quenching jacket, (d) is a front view of the quenching jacket, FIG. 6 is a vertical cross-sectional explanatory view of the work holding and rotating mechanism, and (a) of FIG. 7 is a front view of the first work receiver.
8B is a cross-sectional view taken along the line CC of FIG. 8A, FIG. 8A is a front view of the second workpiece receiver, and FIG. 8B is a side view taken along arrow D of FIG. 8A.
【００１０】図１に示すように、本実施例の移動焼入装
置は、鋼管であるワークＷの外周面Ｗ2 を加熱する加熱
コイル10と、加熱されたワーク周面Ｗ2 に焼入液を噴射
する複合ジャケット20と、ワークＷの一端を把持し、ワ
ークＷを軸芯線Ｗ1 を中心として回転させると共に、軸
芯線Ｗ1 の方向に移動させる回転移動手段50と、焼入待
機ステーション100 にあるワークＷを軸芯線Ｗ1 の方向
に押してワークＷの先端部分を加熱コイル10の近辺まで
押し進めるワーク進出装置97と、ワーク周面Ｗ2 を支持
するワーク支持装置とを備えている。As shown in FIG. 1, the moving quenching apparatus according to the present embodiment has a heating coil 10 for heating an outer peripheral surface W2 of a work W which is a steel pipe, and a quenching liquid is sprayed on the heated work peripheral surface W2. The composite jacket 20 for holding, one end of the work W, the work W at the quenching waiting station 100, and the work W in the quenching waiting station 100, while gripping one end of the work W to rotate the work W around the center axis W1 and move the work W in the direction of the center axis W1. Is equipped with a work advancing device 97 for pushing the tip of the work W to the vicinity of the heating coil 10 by pushing in the direction of the axis W1 and a work supporting device for supporting the work peripheral surface W2.
【００１１】ワーク支持装置は、移動焼入中のワークＷ
を支持する第１ワーク受け30と、同じく移動焼入中のワ
ークＷを支持する第２ワーク受け40と、焼入待機ステー
ション100 にあるワークＷを支持する第１ワーク仮受け
91、92と、焼入終了ステーション300 にあるワークＷを
支持する第２ワーク仮受け93、94とを備えている。The work supporting device is used for the work W during moving and hardening.
First work support 30 that supports the work, a second work support 40 that also supports the work W that is being moved and hardened, and a first work temporary support that supports the work W at the hardening waiting station 100.
91, 92 and second work temporary supports 93, 94 for supporting the work W in the quenching end station 300.
【００１２】ワーク進出装置97、第１ワーク仮受け91、
92、第１ワーク受け30、加熱コイル10、第２ワーク受け
40、複合ジャケット20、第２ワーク仮受け93、94、およ
び回転移動装置50は、ワークＷの軸芯線Ｗ1 の方向（矢
印Ｐの方向）に、前記の順序で配設されている。Work advancing device 97, first work temporary receiving 91,
92, first work holder 30, heating coil 10, second work holder
40, the composite jacket 20, the second work temporary receivers 93 and 94, and the rotation moving device 50 are arranged in the above-mentioned order in the direction of the axis W1 of the work W (direction of arrow P).
【００１３】以下、各構成品を詳細に説明する。加熱コ
イル10は、２ターン（２ターンにこだわるものではな
く、適宜のターン数とすることができる）の螺旋状に巻
回されており、両端は図示しない高周波電源に接続され
ている。Each component will be described in detail below. The heating coil 10 is wound in a spiral shape of 2 turns (not limited to 2 turns but can be an appropriate number of turns), and both ends thereof are connected to a high frequency power source (not shown).
【００１４】複合ジャケット20は、焼入液Ｑを噴射して
ワークＷを急冷する環状の急冷ジャケット21と、急冷ジ
ャケット21の反加熱コイル10側に配置され、焼入液Ｓを
噴射してワークＷを徐冷する環状の徐冷ジャケット22と
を備えている。The composite jacket 20 is disposed on the side of the annular quenching jacket 21 for quenching the work W by quenching the quenching liquid Q and the non-heating coil 10 side of the quenching jacket 21, and spraying the quenching liquid S to work. An annular gradual cooling jacket 22 for gradual cooling of W is provided.
【００１５】図５（ａ）に示すように、急冷ジャケット
21の内周面には、焼入液Ｑをワーク周面Ｗ2 に噴射する
多数のノズル23が設けられている。図５（ｃ）に示すよ
うに、ノズル23の先端面には、断面Ｖ字状で軸芯線Ｗ1
の方向に穿設された溝231 と、この溝231 の中に、溝23
1 の方向に細長く形成された開口を有し、この開口から
焼入液Ｑを噴射するノズル孔232 とが設けられている。
そして、ノズル23から強い噴出力をもって噴出されたシ
ャワー状の焼入液Ｑは、比較的少ない液量でワーク周面
Ｗ2 を急冷する。As shown in FIG. 5 (a), a quenching jacket
A large number of nozzles 23 for injecting the quenching liquid Q onto the work peripheral surface W2 are provided on the inner peripheral surface of 21. As shown in FIG. 5 (c), the tip end surface of the nozzle 23 has a V-shaped cross section and a shaft core wire W1.
Groove 231 that is bored in the direction of
A nozzle hole 232 is provided which has an opening elongated in the direction of 1, and which injects the quenching liquid Q from this opening.
The shower-like quenching liquid Q ejected from the nozzle 23 with a strong ejection force quenches the work peripheral surface W2 with a relatively small amount.
【００１６】図５（ｂ）に示すように、徐冷ジャケット
22の内周面には、焼入液Ｓをワーク周面Ｗ2 に噴射し、
急冷ジャケット21のノズル23よりも多数の小さい円形の
噴射孔24が設けられている。徐冷ジャケット22は、噴射
孔64から弱く、しかしワーク周面Ｗ2 を包むような比較
的多い液量の焼入液Ｓを噴出させてワーク周面Ｗ2 のみ
ならず、ワークＷの内部まで徐冷する。As shown in FIG. 5 (b), the slow cooling jacket
On the inner peripheral surface of 22, the quenching liquid S is sprayed onto the work peripheral surface W2,
A large number of smaller circular injection holes 24 than the nozzles 23 of the quench jacket 21 are provided. The gradual cooling jacket 22 ejects a relatively large amount of the quenching liquid S that is weak from the injection hole 64 but wraps the work peripheral surface W2, and gradually cools not only the work peripheral surface W2 but also the inside of the work W. To do.
【００１７】図７（ａ）および（ｂ）に示すように、第
１ワーク受け30は、ワークＷの直径より例えば0.5mm 程
度大きい直径を有するワーク通過孔32が開設された垂直
なガラスラミネート製等の絶縁性のローラ取付板31と、
ワーク通過孔32の周辺のローラ取付支持板31に正三角形
状に配設固定されたステンレス製でほぼ円柱状の３個の
ローラ33とを備えている。３個のローラ33は、これら３
個のローラに内接する円の直径がワークＷの直径より0.
2mm 程度大きくなるように配置されている。As shown in FIGS. 7A and 7B, the first work holder 30 is made of a vertical glass laminate having a work passage hole 32 having a diameter larger than the diameter of the work W, for example, about 0.5 mm. Insulating roller mounting plate 31 such as
The roller mounting support plate 31 around the work passage hole 32 is provided with three rollers 33, which are made of stainless steel and are fixed and arranged in an equilateral triangle shape. The three rollers 33 are
The diameter of the circle inscribed in each roller is 0 than the diameter of the work W.
It is arranged to be about 2 mm larger.
【００１８】また、図８（ａ）および（ｂ）に示すよう
に、第２ワーク受け40は、ワークＷの直径より例えば0.
4 〜1.2mm 程度大きい直径を有するワーク通過孔42と、
周辺からこのワーク通過孔42に連通している切り欠き43
とを備えた厚みほぼ10mm程度の銅製（非磁性金属であれ
ばよい）のワーク支持板41を備えている。ワーク支持板
41の内部には、ワー支持板41を冷却する冷却液の通路44
が穿設されている。なお、46および47はそれぞれ図示し
ない冷却液供給管および冷却液排出管が接続されるカプ
ラであり、45は、冷却液の通路44に設けた盲蓋である。Further, as shown in FIGS. 8 (a) and 8 (b), the second work holder 40 has a diameter of, for example, 0.
A work passage hole 42 having a diameter of about 4 to 1.2 mm,
Notch 43 communicating from the periphery to this work passage hole 42
And a work support plate 41 made of copper (which may be a non-magnetic metal) having a thickness of about 10 mm. Work support plate
Inside the 41, a cooling liquid passage 44 for cooling the work support plate 41 is formed.
Has been drilled. Reference numerals 46 and 47 are couplers to which a cooling liquid supply pipe and a cooling liquid discharge pipe (not shown) are respectively connected, and 45 is a blind lid provided in the cooling liquid passage 44.
【００１９】次にワークＷの回転移動装置50を説明す
る。まず、回転移動装置50の内、ワークＷを把持し回転
させるワーク把持回転機構50Ａについて述べる。図６に
示すように、ワーク把持回転機構50Ａは、ワークＷの一
端の内周面を内側から保持するいわゆるコレット51を先
端部分に備えた筒状の回転部材52と、この回転部材52
を、１対の玉軸受53、54を介して回転自在に内部に保持
している円筒状の軸受ハウジング55と、ボルト56によっ
て軸受ハウジング55の両側面に固定された１対のエンド
カバー57と、回転部材52の後端部分にキー59を介して取
り付けられた歯車60と、歯車60を回転部材52に固定する
座金61およびナット62と、歯車60に噛み合っている歯車
63と、歯車63を回転駆動するモータ64とを備えている。Next, the rotation moving device 50 for the work W will be described. First, the work gripping / rotating mechanism 50A of the rotary moving device 50 for gripping and rotating the work W will be described. As shown in FIG. 6, the work gripping rotation mechanism 50A includes a cylindrical rotation member 52 having a so-called collet 51 for holding the inner peripheral surface of one end of the work W from the inside, and the rotation member 52.
A cylindrical bearing housing 55 that is rotatably held inside through a pair of ball bearings 53, 54, and a pair of end covers 57 fixed to both side surfaces of the bearing housing 55 by bolts 56. A gear 60 attached to the rear end portion of the rotating member 52 via a key 59, a washer 61 and a nut 62 for fixing the gear 60 to the rotating member 52, and a gear meshing with the gear 60.
63 and a motor 64 that rotationally drives the gear 63.
【００２０】また、ワーク把持回転機構50Ａは、回転部
材52の中空部分に進退自在且つ回転自在に挿入されてい
ると共に先端部分71が半球状に形成されたロッド72と、
ロッド72の後端部分を玉軸受86を介して回転自在に支持
するロッド支持部材87と、このロッド支持部材87を矢印
Ｐの方向に進出させ、矢印Ｐと反対方向に後退させるシ
リンダ73と、筐体74とを備えている。筐体74の表面に
は、ロッド支持部材87を内蔵し且つシリンダ73を外部に
取り付けた箱状のシリンダベース73a と、モータ64とが
取り付けられており、筐体74の内部には歯車60、63、玉
軸受53、54、軸受ハウジンク55等が設けられている。回
転部材52は筐体74を回転自在に内部から外部へ突出貫通
している。なお、58は玉軸受54の固定リングであり、ま
た、51a はコレット51の内周面に形成されたテーパー部
であって、矢印Ｐと反対方向に縮径されている。Further, the work gripping and rotating mechanism 50A includes a rod 72 which is rotatably and rotatably inserted into a hollow portion of a rotating member 52 and has a hemispherical tip portion 71.
A rod support member 87 that rotatably supports the rear end portion of the rod 72 via a ball bearing 86; a cylinder 73 that advances this rod support member 87 in the direction of arrow P and retracts it in the direction opposite to arrow P; A housing 74 is provided. On the surface of the casing 74, a box-shaped cylinder base 73a having a rod supporting member 87 built therein and a cylinder 73 attached to the outside, and a motor 64 are attached. Inside the casing 74, a gear 60, 63, ball bearings 53, 54, bearing housing 55, etc. are provided. The rotating member 52 rotatably projects and penetrates the housing 74 from the inside to the outside. Reference numeral 58 is a fixing ring of the ball bearing 54, and 51a is a taper portion formed on the inner peripheral surface of the collet 51, the diameter of which is reduced in the direction opposite to the arrow P.
【００２１】次に、回転移動装置50の内、ワークＷをワ
ークＷの軸芯線Ｗ1 の方向に移動させるワーク移動機構
50Ｂについて説明する。図１（ｂ）および（ｃ）に示す
ように、ワーク移動機構50Ｂは、ワーク把持回転機構50
Ａの前記筐体74が一方の側面に固定され、他方の側面に
ワーク移動用モータ75が取り付けられた断面ほぼ７字状
のフレーム76と、フレーム76の内部を通過するように水
平且つ上下方向に配置され、両端が移動焼入装置の図１
（ｂ）においては図示しない枠体等に固定されたレール
77および78と、レール77の上端および下端にそれぞれ回
転自在に嵌合している１対ずつのローラ79、79、およ
び、80、80と、レール78の上端および下端にそれぞれ回
転自在に嵌合している一対ずつのローラ81、81、およ
び、82、82とを備えている。これらローラ79〜82は、そ
れぞれ、フレーム76に突設された符号を付さない軸に回
動自在に取り付けられている。Next, in the rotary moving device 50, a work moving mechanism for moving the work W in the direction of the axis W1 of the work W.
50B will be described. As shown in FIGS. 1B and 1C, the work moving mechanism 50B includes a work gripping rotation mechanism 50.
The case 74 of A is fixed to one side surface, and a frame 76 having a substantially 7-shaped cross section in which a work moving motor 75 is attached to the other side surface, and a horizontal and vertical direction so as to pass through the inside of the frame 76. Fig. 1 of the quenching device, which is located at
A rail fixed to a frame or the like not shown in (b)
77 and 78, a pair of rollers 79, 79 and 80, 80 rotatably fitted to the upper and lower ends of the rail 77, respectively, and rotatably fitted to the upper and lower ends of the rail 78, respectively. And a pair of rollers 81, 81 and 82, 82, respectively. Each of these rollers 79 to 82 is rotatably attached to an unmarked shaft provided on the frame 76.
【００２２】ワーク移動機構50Ｂは、更にレール77の側
面に水平方向に突設した長尺状の板部材85の下面に取り
付けられた直線状のラック歯84と、このラック歯84に噛
み合い、前記ワーク移動用モータ75の出力軸に取り付け
られたピニオン歯車83とを備えている。The work moving mechanism 50B further has linear rack teeth 84 attached to the lower surface of a long plate member 85 protruding horizontally on the side surface of the rail 77, and meshes with the rack teeth 84, And a pinion gear 83 attached to the output shaft of the work moving motor 75.
【００２３】前記のように、ワークＷの焼入待機ステー
ション100 および焼入終了ステーション300 において
は、それぞれワークＷを水平に支持する第１ワーク仮受
け91、92および第２ワーク仮受け93、94が設けられてい
るが、第１図に示すように、これらワーク仮受け91〜94
は、上端にワークＷの下部に接触してワークＷの下部を
支持する図示しないＶブロックが形成されており、第１
ワーク仮受け91、92の下端は本実施例の移動焼入装置の
設置面（或いは枠体の場合もある）Ｅに固定されてい
る。第２ワーク仮受け93、94は、それぞれ、前記設置面
Ｅに立設されたシリンダ93b 、94b によって昇降される
ロッド93a 、94a の上端に取り付けられている。As described above, in the quenching waiting station 100 and the quenching completion station 300 for the work W, the first work temporary receivers 91 and 92 and the second work temporary receivers 93 and 94 for horizontally supporting the work W, respectively. However, as shown in FIG. 1, these temporary work receivers 91 to 94 are provided.
Has a V block (not shown) at its upper end that contacts the lower portion of the work W and supports the lower portion of the work W.
The lower ends of the temporary work receivers 91 and 92 are fixed to an installation surface (or a frame body in some cases) E of the moving hardening apparatus of this embodiment. The second workpiece temporary receivers 93 and 94 are attached to the upper ends of rods 93a 1 and 94a 2 which are moved up and down by cylinders 93b 1 and 94b provided upright on the installation surface E, respectively.
【００２４】図１に示すように、ワーク進出装置97は、
焼入待機ステーション100 に搬入されて第１ワーク仮受
け91、92上に水平に配置されたワークＷの軸芯線Ｗ1 上
に配設されたロッド98と、このロッド98を進退させるシ
リンダ99とを備えている。As shown in FIG. 1, the work advancing device 97 is
A rod 98 arranged on the axis W1 of the work W which is carried into the quenching standby station 100 and horizontally arranged on the first work temporary receivers 91, 92, and a cylinder 99 for moving the rod 98 forward and backward. I have it.
【００２５】次に、本実施例の移動焼入装置によるワー
クＷの移動焼入方法を説明する。図２に示すように、焼
入待機ステーション100 の第１ワーク仮受け91、92に、
手作業、適宜の搬送装置、或いはマニピュレータ等によ
ってワークＷを載置する。この後、図３に示すように、
シリンダ93b 、94b を動作させて第２ワーク仮受け93、
94を降下させてから、ワーク移動機構50Ｂのワーク移動
用モータ75が起動され、ラック歯84に噛み合っているピ
ニオン歯車83が回転するので、フレーム76が筐体74と共
に前進（矢印Ｐと反対方向）を開始し、コレット51の先
端が加熱コイル10の内側でワークＷ寄りにきた位置で停
止する。Next, a method of moving and quenching the work W by the moving and quenching apparatus of this embodiment will be described. As shown in FIG. 2, in the first workpiece temporary receivers 91, 92 of the quenching waiting station 100,
The work W is placed manually, by an appropriate transfer device, a manipulator, or the like. After this, as shown in FIG.
Operate the cylinders 93b, 94b to move the second work temporary support 93,
After lowering 94, the work moving motor 75 of the work moving mechanism 50B is activated and the pinion gear 83 meshing with the rack teeth 84 rotates, so that the frame 76 moves forward together with the housing 74 (direction opposite to arrow P). ) Is started and stopped at the position where the tip of the collet 51 comes close to the work W inside the heating coil 10.
【００２６】次いで、ワーク進出装置97のシリンダ99を
動作させてロッド98を進出させ、ワークＷの後端を押し
て矢印Ｐの方向に進める。そして、ワークＷの先端が第
１ワーク受け30のワーク通過孔32を通過後加熱コイル10
の矢印Ｐの方向での中央にきた位置（ワークＷがこの位
置にあることを焼入開始位置にあるという）でワークＷ
を停止させる。すると、コレット51はワークＷの先端部
分の内側に位置している。ロッド98は後退する。Next, the cylinder 99 of the work advancing device 97 is operated to advance the rod 98, and the rear end of the work W is pushed to advance in the direction of arrow P. After the tip of the work W passes through the work passage hole 32 of the first work receiver 30, the heating coil 10
Work W at the position in the center in the direction of arrow P (the work W being at this position is called the quenching start position)
To stop. Then, the collet 51 is located inside the tip portion of the work W. Rod 98 retracts.
【００２７】この後、ワーク把持回転機構50Ａのシリン
ダ73を動作させてロッド72を前進させると、ロッド72の
半球状の先端部分71が、コレット51の内周面のテーパー
部51a に押し込まれるので、コレット51の外周面がワー
クＷの先端部分の内周面に押圧されて回転部材52とワー
クＷとが結合固定される。Thereafter, when the cylinder 73 of the workpiece gripping and rotating mechanism 50A is operated to advance the rod 72, the hemispherical tip portion 71 of the rod 72 is pushed into the taper portion 51a of the inner peripheral surface of the collet 51. The outer peripheral surface of the collet 51 is pressed against the inner peripheral surface of the front end portion of the work W, so that the rotating member 52 and the work W are coupled and fixed.
【００２８】この後、ワーク回転用のモータ64を起動す
ると、モータ64の回転は、歯車63および60を介して先端
にコレット51が形成された回転部材52に伝達されるの
で、ワークＷは軸芯線Ｗ1 を中心として回転を開始す
る。ロッド72も回転する。ワークＷの回転が開始される
と同時にモータ75を前と逆の方向に回転するように起動
すると、ワークＷは矢印Ｐの方向への移動を開始する。After that, when the motor 64 for rotating the work is started, the rotation of the motor 64 is transmitted to the rotating member 52 having the collet 51 formed at the tip through the gears 63 and 60, so that the work W is rotated. The rotation starts around the core wire W1. The rod 72 also rotates. When the rotation of the work W is started and the motor 75 is started so as to rotate in the opposite direction to the front, the work W starts moving in the direction of arrow P.
【００２９】ワークＷの矢印Ｐの方向への移動開始と同
時に、加熱コイル10に図示しない高周波電源から高周波
電流を通電し、且つ急冷ジャケット21から焼入液Ｑの、
また、徐冷ジャケット22から焼入液Ｓの噴射をそれぞれ
開始する。ワークＷは第１ワーク受け30のローラ33の間
とワーク通過孔32、螺旋状の加熱コイル10の内側、第２
ワーク受け40のワーク通過孔42、環状の急冷ジャケット
21の内側、および環状の徐冷ジャケット22の内側を通過
して焼入終了ステーション300 に至る。Simultaneously with the start of the movement of the work W in the direction of arrow P, a high-frequency current is supplied to the heating coil 10 from a high-frequency power source (not shown), and the quenching liquid Q is supplied from the quenching jacket 21.
Further, the injection of the quenching liquid S is started from the slow cooling jacket 22. The work W is located between the rollers 33 of the first work receiver 30, the work passage hole 32, the inside of the spiral heating coil 10, and the second work.
Work passing hole 42 of work receiver 40, annular quenching jacket
It passes through the inside of 21 and the inside of the annular slow cooling jacket 22 to reach the quenching end station 300.
【００３０】この際、ワークＷが加熱コイル10を通過中
には加熱コイル10によって誘導加熱される。加熱された
ワークＷが急冷ジャケット21を通過する際には、急冷ジ
ャケット21から比較的強い噴出力で噴射された比較的小
量の焼入液Ｑによって加熱されたワークＷは急速に、例
えばほぼ摂氏350 度まで冷却された後、徐冷ジャケット
22から比較的弱い噴出力で噴射された比較的多量の焼入
液Ｓによって、例えばほぼ摂氏60度までの冷却が緩やか
に行われる。At this time, the work W is induction-heated by the heating coil 10 while passing through the heating coil 10. When the heated work W passes through the quenching jacket 21, the work W heated by the comparatively small amount of quenching liquid Q ejected from the quenching jacket 21 with a comparatively strong ejection force rapidly, for example, approximately. After cooling to 350 degrees Celsius, the slow cooling jacket
A relatively large amount of the quenching liquid S injected from 22 with a relatively weak injection output allows gentle cooling to, for example, approximately 60 degrees Celsius.
【００３１】なお、ワーク把持回転機構50Ａの筐体74
が、降下している第２ワーク仮受93、94の上方を通過し
終えると、シリンダ93b 、94b が動作して第２ワーク仮
受93、94を上昇させる。そして、徐冷ジャケット22を通
過したワークＷは、更に前進してワークＷの先端部分お
よび後端部分がそれぞれ第２ワーク仮受け93および94上
に載置された位置でモータ64、75が停止されてワークＷ
の前進動作と回転動作が停止される。次いで、シリンダ
73を動作させてロッド72を後退させると、コレット51と
ワークＷとの結合が解除される。次いで、モータ75を起
動してフレーム76を矢印Ｐの方向に移動して、コレット
51をワークＷの中空部分から取り出して１番目のワーク
Ｗの焼入工程を終える。２番目以後のワークＷについて
も上記と同様に移動焼入を行うことができる。The case 74 of the work gripping / rotating mechanism 50A
However, after finishing passing over the descending second work temporary supports 93, 94, the cylinders 93b, 94b operate to raise the second work temporary supports 93, 94. Then, the work W that has passed through the slow cooling jacket 22 is further advanced and the motors 64 and 75 are stopped at the positions where the front end portion and the rear end portion of the work W are placed on the second temporary work receivers 93 and 94, respectively. Work W
The forward motion and rotation motion of are stopped. Then the cylinder
When the rod 72 is retracted by operating 73, the connection between the collet 51 and the work W is released. Next, the motor 75 is started to move the frame 76 in the direction of arrow P, and the collet
The workpiece 51 is taken out from the hollow portion of the work W, and the quenching process of the first work W is completed. The moving quenching can be performed on the second and subsequent works W in the same manner as above.
【００３２】この実施例の移動焼入装置によってワーク
Ｗを焼入した場合における焼入後の歪みの改善例を述べ
る。例えば、全長1.1m、厚み2.6mm 、外径35mmの鋼管に
おいて、従来の焼入装置による場合には前記のように3
〜5mm （トータル インジィケータ リーディング T.
R.I. ）であった歪みを、0.4 〜1.2mm 程度に低減でき
た。An example of improving the distortion after quenching when the work W is quenched by the moving quenching apparatus of this embodiment will be described. For example, for a steel pipe with a total length of 1.1 m, a thickness of 2.6 mm, and an outer diameter of 35 mm, if the conventional quenching equipment is used,
~ 5mm (Total Indicator Reading T.
The strain that was RI) could be reduced to about 0.4 to 1.2 mm.
【００３３】[0033]
【発明の効果】以上説明したように、本発明の方法およ
び装置によって棒状ワークの高周波移動焼入を行うに際
しては、棒状ワークが水平であると共にワークの軸芯線
を中心として回転自在且つ前記軸芯線の方向に移動自在
であるようにワークの外周面のみを支持して後、ワーク
の一端を把持し、ワークを前記軸芯線を中心として回転
させると共にワークを前記軸芯線の方向に移動させなが
ら、高周波加熱コイルによってワークの外周面を加熱
後、焼入液噴射用ジャケットから焼入液を噴射して加熱
されたワークの外周面を冷却する。As described above, when performing induction hardening of a rod-shaped workpiece by the method and apparatus of the present invention, the rod-shaped workpiece is horizontal and rotatable about the axis of the workpiece, and the axis of the axis of rotation is the center of the axis of the workpiece. After supporting only the outer peripheral surface of the work so as to be movable in the direction of, while gripping one end of the work and rotating the work around the shaft core line and moving the work in the direction of the shaft core line, After heating the outer peripheral surface of the work by the high-frequency heating coil, the quenching liquid is sprayed from the quenching liquid spraying jacket to cool the outer peripheral surface of the heated work.
【００３４】即ち、棒状ワークを移動焼入中は、従来と
異なり、ワークに、ワークの軸芯線方向の圧力や張力が
加わらない状態で焼入が行われる。従って、本発明の方
法および装置によって棒状ワークを移動焼入したときに
は、焼入後のワークの歪みを低減することができる。That is, during moving quenching of a rod-shaped workpiece, unlike the conventional case, quenching is performed in a state where no pressure or tension is applied to the workpiece in the axial direction of the workpiece. Therefore, when a rod-shaped work is moved and hardened by the method and apparatus of the present invention, distortion of the work after hardening can be reduced.
【図１】（ａ）は本発明の棒状ワークの高周波移動焼入
方法を実現することができる高周波移動焼入装置の一部
断面正面説明図であってワークを焼入している状態を示
し、（ｂ）は（ａ）の矢視Ａ側面説明図、（ｃ）は
（ｂ）のＢ−Ｂ線矢視断面説明図である。FIG. 1 (a) is a partial cross-sectional front view of a high-frequency induction hardening apparatus capable of implementing the high-frequency induction hardening method for a rod-shaped workpiece according to the present invention, showing a state where the workpiece is being hardened. , (B) is an explanatory view of the side of the arrow A in (a), and (c) is a sectional view of the line BB in FIG.
【図２】ワークを焼入待機ステーションに搬入した状態
での移動焼入装置の一部断面正面説明図である。FIG. 2 is a partial cross-sectional front view of the moving and quenching device with the work carried into the quenching standby station.
【図３】ワークが焼入開始位置に移動した状態での移動
焼入装置の一部断面正面説明図である。FIG. 3 is a partial cross-sectional front view of the moving and quenching device in the state where the work has moved to the quenching start position.
【図４】ワークが焼入終了ステーションにきた状態での
移動焼入装置の一部断面正面説明図である。FIG. 4 is a partial cross-sectional front view of the moving and quenching device with the work coming to the quenching termination station.
【図５】（ａ）および（ｂ）はそれぞれ急冷ジャケット
および徐冷ジャケットの斜視図、（ｃ）は急冷ジャケッ
トのノズルの斜視図、（ｄ）は急冷ジャケットの正面図
である。5A and 5B are perspective views of a quenching jacket and a gradual cooling jacket, respectively, FIG. 5C is a perspective view of a nozzle of the quenching jacket, and FIG. 5D is a front view of the quenching jacket.
【図６】ワーク把持回転機構の縦断面説明図である。FIG. 6 is a vertical cross-sectional explanatory view of a work gripping rotation mechanism.
【図７】（ａ）は第１ワーク受けの正面図、（ｂ）は
（ａ）のＣ−Ｃ線矢視断面図である。FIG. 7A is a front view of the first work receiver, and FIG. 7B is a sectional view taken along line CC of FIG.
【図８】（ａ）は第２ワーク受けの正面図、（ｂ）は
（ａ）の矢視Ｄ側面図である。FIG. 8A is a front view of the second work receiver, and FIG. 8B is a side view of the second work receiver seen from the arrow D.
【図９】棒状ワークの従来の高周波移動焼入方法の説明
図である。FIG. 9 is an explanatory diagram of a conventional induction hardening method for a rod-shaped work.
10 加熱コイル 20 複合ジャケット 21 急冷ジャケット 22 徐冷ジャケット 50 回転移動装置 Ｑ、Ｓ 焼入液 Ｗ ワーク Ｗ1 軸芯線 Ｗ2 ワーク周面 10 Heating coil 20 Composite jacket 21 Rapid cooling jacket 22 Slow cooling jacket 50 Rotational moving device Q, S Quenching liquid W Work W1 Shaft core wire W2 Work circumference
Claims (2)
軸芯線を中心として回転自在且つ前記軸芯線の方向に移
動自在であるようにワークの外周面のみを支持する第１
工程と、前記周面のみを支持した状態のまま、ワークの
一端を把持し、ワークを前記軸芯線を中心として回転さ
せると共にワークを前記軸芯線の方向に移動させなが
ら、高周波加熱コイルによって前記周面を加熱後、焼入
液噴射用ジャケットから焼入液を噴射して加熱された前
記周面を冷却する第２工程と、を備えたことを特徴とす
る棒状ワークの高周波移動焼入方法。1. A first support for supporting only an outer peripheral surface of a work so that the rod-shaped work is horizontal and rotatable about the shaft center of the work and movable in the direction of the shaft center.
While holding only the process and the peripheral surface, one end of the work is gripped, the work is rotated around the axis and the work is moved in the direction of the axis while the high-frequency heating coil is used to rotate the circumference. A second step of cooling the heated peripheral surface by injecting a quenching liquid from a quenching liquid injecting jacket after heating the surface; and a high-frequency moving quenching method for a rod-shaped work.
線を中心として回転自在且つ前記軸芯線の方向に移動自
在であるようにワークの外周面のみを支持するワーク支
持装置と、前記周面に接近配設されて前記周面を加熱す
る高周波加熱コイルと、前記加熱コイルの前記軸芯線方
向側に配設されて前記周面に焼入液を噴射する複合ジャ
ケットと、ワークの一端を把持し、ワークを軸芯線を中
心として回転させると共に、ワークを前記軸芯線の方向
に移動させる回転移動手段とを具備し、前記複合ジャケ
ットは、焼入液の噴出力が強く、比較的少ない液量でワ
ークを急冷する急冷ジャケットと、急冷ジャケットの反
加熱コイル側に配設され、焼入液の噴出力が弱く、比較
的多い液量でワークを徐冷する徐冷ジャケットと、を備
えたことを特徴とする棒状ワークの高周波移動焼入装
置。2. A work support device for supporting only an outer peripheral surface of a work so that the work is horizontal, rotatable about an axis of the work and movable in the direction of the axis, and a work supporting device for supporting the outer surface. A high-frequency heating coil disposed close to each other to heat the peripheral surface, a composite jacket disposed on the axial core side of the heating coil to inject a quenching liquid onto the peripheral surface, and grips one end of the work. The composite jacket has a strong jetting force of the quenching liquid and a relatively small amount of liquid for rotating the work around the axis and moving the work in the direction of the axis. A quenching jacket for quenching the work, and a gradual cooling jacket arranged on the side opposite to the heating coil of the quenching jacket for gradually cooling the work with a relatively large amount of the quenching liquid, are provided. Features High-frequency moving hardening equipment for bar-shaped workpieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5212175A JP2748219B2 (en) | 1993-08-03 | 1993-08-03 | High-frequency moving quenching method and apparatus for rod-shaped workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5212175A JP2748219B2 (en) | 1993-08-03 | 1993-08-03 | High-frequency moving quenching method and apparatus for rod-shaped workpieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0748620A true JPH0748620A (en) | 1995-02-21 |
| JP2748219B2 JP2748219B2 (en) | 1998-05-06 |
Family
ID=16618154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5212175A Expired - Lifetime JP2748219B2 (en) | 1993-08-03 | 1993-08-03 | High-frequency moving quenching method and apparatus for rod-shaped workpieces |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2748219B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013237891A (en) * | 2012-05-15 | 2013-11-28 | Miyaden Co Ltd | Induction hardening equipment for shaft-shaped workpiece |
| WO2016125425A1 (en) * | 2015-02-06 | 2016-08-11 | Ｊｆｅスチール株式会社 | Steel pipe quenching method, steel pipe quenching apparatus, steel pipe production method, and steel pipe production equipment |
| CN111944965A (en) * | 2019-05-16 | 2020-11-17 | 富士电子工业株式会社 | High-frequency hardening apparatus and support device for long-strip workpiece |
| CN113631730A (en) * | 2019-03-29 | 2021-11-09 | 株式会社爱信 | Quenching method |
| CN114941069A (en) * | 2022-05-24 | 2022-08-26 | 东莞广之源电子科技有限公司 | Automatic piston rod quenching equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856008A (en) * | 1981-09-29 | 1983-04-02 | Toshiba Corp | Control system for reactive power compensating device |
| JPS6346126A (en) * | 1986-08-13 | 1988-02-27 | 松下電器産業株式会社 | Dust sensor for electric cleaner |
-
1993
- 1993-08-03 JP JP5212175A patent/JP2748219B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856008A (en) * | 1981-09-29 | 1983-04-02 | Toshiba Corp | Control system for reactive power compensating device |
| JPS6346126A (en) * | 1986-08-13 | 1988-02-27 | 松下電器産業株式会社 | Dust sensor for electric cleaner |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013237891A (en) * | 2012-05-15 | 2013-11-28 | Miyaden Co Ltd | Induction hardening equipment for shaft-shaped workpiece |
| WO2016125425A1 (en) * | 2015-02-06 | 2016-08-11 | Ｊｆｅスチール株式会社 | Steel pipe quenching method, steel pipe quenching apparatus, steel pipe production method, and steel pipe production equipment |
| JP6098773B2 (en) * | 2015-02-06 | 2017-03-22 | Ｊｆｅスチール株式会社 | Steel pipe quenching method, steel pipe quenching apparatus, steel pipe manufacturing method, and steel pipe manufacturing equipment |
| JPWO2016125425A1 (en) * | 2015-02-06 | 2017-04-27 | Ｊｆｅスチール株式会社 | Steel pipe quenching method, steel pipe quenching apparatus, steel pipe manufacturing method, and steel pipe manufacturing equipment |
| CN107250393A (en) * | 2015-02-06 | 2017-10-13 | 杰富意钢铁株式会社 | The process for quenching of steel pipe, the quenching unit of steel pipe, the manufacturing equipment of the manufacture method of steel pipe and steel pipe |
| CN107250393B (en) * | 2015-02-06 | 2020-04-03 | 杰富意钢铁株式会社 | Method for quenching steel pipe, apparatus for quenching steel pipe, method for producing steel pipe, and facility for producing steel pipe |
| US11230747B2 (en) | 2015-02-06 | 2022-01-25 | Jfe Steel Corporation | Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe |
| CN113631730B (en) * | 2019-03-29 | 2023-09-22 | 株式会社爱信 | Quenching method |
| CN113631730A (en) * | 2019-03-29 | 2021-11-09 | 株式会社爱信 | Quenching method |
| CN111944965A (en) * | 2019-05-16 | 2020-11-17 | 富士电子工业株式会社 | High-frequency hardening apparatus and support device for long-strip workpiece |
| CN111944965B (en) * | 2019-05-16 | 2023-09-19 | 富士电子工业株式会社 | High-frequency quenching device and supporting device for long-strip-shaped workpiece |
| CN114941069A (en) * | 2022-05-24 | 2022-08-26 | 东莞广之源电子科技有限公司 | Automatic piston rod quenching equipment |
| CN114941069B (en) * | 2022-05-24 | 2024-01-19 | 东莞广之源电子科技有限公司 | Automatic change piston rod quenching equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2748219B2 (en) | 1998-05-06 |
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