JPS6092426A - Cooling method of high-frequency induction heating and tempering - Google Patents
Cooling method of high-frequency induction heating and temperingInfo
- Publication number
- JPS6092426A JPS6092426A JP20017783A JP20017783A JPS6092426A JP S6092426 A JPS6092426 A JP S6092426A JP 20017783 A JP20017783 A JP 20017783A JP 20017783 A JP20017783 A JP 20017783A JP S6092426 A JPS6092426 A JP S6092426A
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- frequency induction
- tempering
- cooling
- heating
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
イ 産業上の利用分野
本発明は、高周波誘導加熱焼戻しの冷却方法に関し、詳
しくは、異種材質間の溶接により形成される２Ｍ接砂化
した部位を欧化させて１機械加工を容易にし、かつ溶接
部′の割れの発生を防止する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a cooling method for high-frequency induction heating and tempering. It facilitates processing and prevents cracking of the welded part.
とともに、浴＠部以外の部位での硬さ低下を防止する。At the same time, it prevents a decrease in hardness in areas other than the bath @ part.
高周波誘導加熱焼戻しの冷却方法にかかる。The present invention relates to a cooling method for high-frequency induction heating tempering.
口 従来技術
従来、異種材質間の溶接においては、溶接時の溶接材質
間の相互拡散によって、溶接部位及びその近傍において
、溶接加熱による焼入硬化部が形成される。BACKGROUND ART Conventionally, in welding between dissimilar materials, a quench-hardened part is formed by welding heat at the welding site and its vicinity due to mutual diffusion between the welding materials during welding.
そこで、このような溶接硬化した部位を形成しやすい異
種材質間の溶接では、溶接後に焼戻し処理して、溶接硬
化しｔこ部位を軟化させている。Therefore, in welding between dissimilar materials where such weld-hardened parts are likely to be formed, tempering treatment is performed after welding to soften the weld-hardened parts.
このような溶接後の焼戻し処理は、従来、第１図に示す
ような、上部に加熱ステーション１．下部に冷却ステー
ション２を有する。高周波誘導加熱焼戻し装置により実
施されていた。Such post-welding tempering treatment has conventionally been carried out using a heating station 1 at the top, as shown in FIG. It has a cooling station 2 at the bottom. The process was carried out using a high-frequency induction heating and tempering device.
そして、第２図に示すように、溶接部品３を上下センタ
５及び６により固定した後１回転状態で加熱ステーショ
ン１まで上昇させ、加熱コイル４にて１．約６００℃に
高周波誘導加熱した後、溶接部品“３を冷却ステーショ
ン２まで下降させ、全体冷却′・ジャケット７から噴射
さ′れｔこ水により、溶接部品３全体を冷却するために
、溶接部３Ｃも急冷され。Then, as shown in FIG. 2, the welded part 3 is fixed by the upper and lower centers 5 and 6, and then raised to the heating station 1 in one rotation, and heated by the heating coil 4. After high-frequency induction heating to approximately 600°C, the welded part ``3'' is lowered to the cooling station 2, and the welded part ``3'' is injected from the overall cooling jacket 7. 3C was also rapidly cooled.
溶接部３Ｃの内部割れや９表面部に再焼入硬化部を発生
しやすい欠点がある。There are disadvantages in that internal cracks in the welded portion 3C and re-quench hardened portions are likely to occur in the surface portion 9.
まｔこ、冷却ステーション２での放冷時間を長くとれば
、溶接部３Ｃの内部割れや２表面部の再焼入硬化７１Ｓ
の発生は防止できるものの、設備能力の低下、及び＋
’ｌ！”１周波訓導加熱部からの熱影響による高周波誘
導加熱部以外の他部位、ｔことえば、シャフト郡３ｂで
の硬ｔＷ低下をきたす欠点力；ある。However, if the cooling time at cooling station 2 is extended, internal cracking of the welded part 3C and re-quenching hardening of the 2nd surface part 71S will occur.
Although it is possible to prevent the occurrence of
'l! ``There is a drawback that the hardness tW decreases in other parts other than the high-frequency induction heating part, such as the shaft group 3b, due to the thermal influence from the single-frequency induction heating part.
このように、従来の高周波誘導加熱焼戻しの冷却方法に
よれば。Thus, according to the conventional high frequency induction heating tempering cooling method.
（Ｏ凸周波、ｉｆｌ導加熱後に、高周波誘導加熱部を。(After O convex frequency, ifl induction heating, high frequency induction heating section.
水又はＩＪＥ ａ＜７ｉ ’Ｑ気により１自ちに冷却す
ると、高周波誘導加熱部に再焼入硬化部や割れを発生し
やす０という欠点がある。When cooled to 1 with water or IJE a<7i 'Q air, there is a disadvantage that re-quenching hardened parts and cracks are likely to occur in the high frequency induction heating part.
（嫂 高周波誘導加熱後を放冷として、高周波誘導力ｎ
熱部の急冷を避けると、高周波誘導加熱部の再焼入硬化
９割れ等の発生は防止できるカタ、放冷時間を長く要す
るｔこめに、設備能力カ；低下し、力）つ、放冷時間が
長いと１．高周波誘導加熱部からの。(After high-frequency induction heating is allowed to cool, high-frequency induction force n
Avoiding rapid cooling of hot parts can prevent the occurrence of re-hardening cracks in high-frequency induction heating parts.However, the longer the cooling time is required, the lower the equipment capacity will be. If the time is long, 1. from the high frequency induction heating section.
熱影響により、高周波誘導加熱されない他部位での硬さ
が低下する欠点がある。There is a drawback that hardness decreases in other parts that are not subjected to high-frequency induction heating due to thermal effects.
ハ 発明の目的
本発明は、異種材質間の溶接後の溶接硬化した部位に対
する。高周波誘導加熱焼戻しにおいて。C. Object of the Invention The present invention is directed to a welded hardened part after welding different materials. In high frequency induction heating tempering.
焼戻しのｔコめの高周波誘導加熱後、まず、加熱部から
離れｔこ部位を冷却することにより、高周波誘導加熱部
を間接的に冷却し、高周波誘導加熱部の急冷を防止して
、浴接部の内部割れ、高周波加熱部の再焼入硬化の発生
を防止するとともに、高周波誘導加熱部からの熱影響に
よる。高周波誘熱部以外の部位での硬さ低下を防止でき
る。高周波誘導加熱焼戻しの冷却方法を提供することを
目的としている。After high-frequency induction heating of the t-shaped part for tempering, the high-frequency induction-heated part is cooled indirectly by moving away from the heating part and cooling the part. This prevents the occurrence of internal cracks in the parts and re-quench hardening of the high-frequency heating parts, as well as the effects of heat from the high-frequency induction heating parts. It is possible to prevent a decrease in hardness in areas other than the high-frequency heat-inducing part. The present invention aims to provide a cooling method for high frequency induction heating tempering.
二 発明の構成
このような目的は２本発明によれば、異種材質間の溶接
後に、溶接硬化した部位を軟化させる。2. Structure of the Invention According to the present invention, a welded hardened portion is softened after welding between dissimilar materials.
高周波誘導加熱焼戻しに伴なう、高周波誘導加熱後の冷
却方法であって、異種利質間の溶接後、ま。A cooling method after high-frequency induction heating associated with high-frequency induction heating and tempering, which is used for cooling after welding between different materials.
−ず、溶接硬化した部位を軟化させるのに必要な所゛定
温度まで、溶接硬化した部位を加熱した後、高周波誘導
加熱部以外の部位を冷却することにより。- First, by heating the welded hardened part to a predetermined temperature necessary to soften the welded hardened part, and then cooling the parts other than the high frequency induction heating part.
高周波誘導加熱部を間接的に冷却して、溶接硬化した部
位の割れ、再硬化を防止しうる温度まで徐冷させ、つい
で、高周波誘導加熱部を含む溶接部品全体を、冷却する
ことを特徴とする。高周波誘導加熱焼戻しの冷却方法に
よって達成される。The high-frequency induction heating section is indirectly cooled to a temperature that prevents cracking and re-hardening of the welded hardened area, and then the entire welded part including the high-frequency induction heating section is cooled. do. This is achieved by the cooling method of high frequency induction heating tempering.
ホ 実施例
以−【ζ、添イ；」図１（１１にも（づいて１本発明の
詳細な説明する。E. From Examples to [ζ, Add A;] The present invention will be described in detail based on FIG. 1 (see also 11).
第３図に９本発明の一実施例を示す。FIG. 3 shows an embodiment of the present invention.
第３図の実施例は、高周波ｊＭ導導熱熱よる。摩擦溶接
部の焼戻しにおいて、第１図及び第２図に示すような、
従来の高周波誘導加熱焼戻し装置に。The embodiment shown in FIG. 3 relies on high frequency jM heat conduction. In tempering a friction weld, as shown in Figures 1 and 2,
For conventional high frequency induction heating and tempering equipment.
間接冷却ジャケット８を配置し、溶接部３Ｃ’ｉ＝間接
冷却することにより、溶接部３Ｃの内部割れ。By arranging the indirect cooling jacket 8 and indirectly cooling the welded part 3C'i, the welded part 3C is internally cracked.
表面部の再焼入硬化の発生を防止し、設備能力の向−に
、；ｆ４周波誘導加熱部からの熱影響の低減を図以下１
本実施例の焼戻しの冷却方法を、具体的。In order to prevent the occurrence of re-quenching and hardening of the surface area, and to improve the equipment capacity, we have reduced the thermal influence from the F4 frequency induction heating section.
The cooling method for tempering in this example will be explained in detail.
に説明する。Explain.
この実施例においては、ＮＩ基会合金製溶接部材３ａと
、ＪＩＳＩ格５Ｃｒ４材製のシャフト材３ｂを摩擦溶接
後、溶接部３Ｃ近傍での溶接硬化した部位を軟化させる
ｔコめ、高周波誘導加熱焼戻しするものである。In this embodiment, after friction welding a welding member 3a made of NI-based alloy and a shaft material 3b made of JISI grade 5Cr4 material, high-frequency induction heating is applied to soften the welded hardened area near the welded part 3C. It is tempered.
この実施例に用いる高周波誘導加熱焼戻し装置において
は、従来の高周波誘導加熱焼戻し装置に。The high frequency induction heating and tempering apparatus used in this example is a conventional high frequency induction heating and tempering apparatus.
間接冷却ジャケット８を配置し、高周波誘導加熱後、冷
却水供給口ＩＯより冷却水を供給し２間接冷却ジャケッ
ト８の内側に、放射状に穿設されｔコ噴射１コ９から噴
射された冷却水を、溶接部品３の溶接部３Ｃ下方部位に
噴射させ、溶接部３Ｃを急冷することなく１間接的に冷
却し、溶接部３Ｃが約２００°Ｃとなった時点で１間接
冷却ジャケット８からの水の噴射を停止し、溶接部品３
を、第１図に示す冷却ステーション２まで下降させ、全
体冷却ジャケット７により、溶接部品３を全体冷却す、
る 。An indirect cooling jacket 8 is arranged, and after high-frequency induction heating, cooling water is supplied from the cooling water supply port IO, and the cooling water is injected from the t jets 9 drilled radially inside the indirect cooling jacket 8. is injected into the lower part of the welded part 3C of the welded part 3 to indirectly cool the welded part 3C without rapidly cooling it, and when the temperature of the welded part 3C reaches about 200°C, it is sprayed from the indirect cooling jacket 8. Stop the water jet and weld parts 3
is lowered to the cooling station 2 shown in FIG. 1, and the entire welded part 3 is cooled by the overall cooling jacket 7
Ru.
・ この間接冷却ジャケソ・ト８による。溶接部品３の
溶接部３Ｃ下方部位の冷却によって、溶接部３Ｃの内部
割れ２表ｌｌｌ１部の再焼入硬化を発生しない程度の冷
却速度とする溶接ｓ３Ｃの間接冷却が可能となり、長時
間をかけた放冷とする必要がなく。- Based on this indirect cooling jacket. By cooling the lower part of the welded part 3C of the welded part 3, it is possible to indirectly cool the welded part 3C at a cooling rate that does not cause internal cracks in the welded part 3C to re-quench and harden, which takes a long time. There is no need to leave it to cool.
従って、長時間放冷によって起こる。高周波誘導加熱部
の熱影響による。高周波誘導加熱部以外のシャフト部３
ｂ等の、他部位での硬度低下をも防止できるものである
。Therefore, it occurs due to long-term cooling. Due to the thermal effect of the high frequency induction heating section. Shaft section 3 other than the high frequency induction heating section
This can also prevent a decrease in hardness in other areas such as b.
へ 発明の作用効果
以」二により明らかなように１本発明にかかる高周波誘
導加熱焼戻しの冷却方法によれば、異種材質間の溶接後
の溶接硬化し１こ部位に対する。高周波誘導加熱焼戻し
において、焼戻しのための高周波誘導加熱後、まず、加
熱焼戻し部から離れた部位を冷却することに、Ｌす、高
周波加熱部を間接的に冷却することにより、高周波誘導
加熱部を間接的に冷却し、高周波誘導加熱部の急冷を防
止して。Functions and Effects of the Invention As is clear from the above, according to the cooling method for high-frequency induction heating and tempering according to the present invention, the weld hardening occurs after welding between dissimilar materials. In high-frequency induction heating and tempering, after high-frequency induction heating for tempering, first, the parts remote from the heating and tempering section are cooled. Provides indirect cooling to prevent rapid cooling of the high frequency induction heating section.
溶接部の内部割れ、高周波加熱部の再焼入硬化の発生を
防止するとともに：茜周波誘導加熱部から′の熱影響に
よる。高周波・加熱部以外の部位での硬、さ低下を防止
できる利点がある。This prevents internal cracking of welded parts and re-quenching hardening of high-frequency heating parts: due to thermal effects from the madder frequency induction heating parts. It has the advantage of preventing deterioration in hardness and stiffness in areas other than the high frequency/heating area.
第１図は、従来の高周波誘導加熱焼戻し装置のレイアウ
ト図。
第２図は、従来法による高周波誘導加熱焼戻し状態を示
す概図。
第３図は１本発明法による高周波誘導加熱焼戻し状態を
示す概略図である。
１・・・加熱ステーション、２・・・冷却ステーション
。
３・・・溶接部品、３ａ・・・溶接部材。
３ｂ・・・シャフト材、３Ｃ・・・溶接部。
４・・・加熱コイル、５・・・子センタ、６・・・下セ
ンタ。
７・・・全体冷却ジャケット。
８・・・間接冷却ジャケット。
９・・・噴射口、１０・・・冷却水供給口出願人
トヨタ自動車株式会社
第１図
第２図
第３図FIG. 1 is a layout diagram of a conventional high-frequency induction heating and tempering apparatus. FIG. 2 is a schematic diagram showing a state of high-frequency induction heating tempering according to a conventional method. FIG. 3 is a schematic diagram showing a state of high-frequency induction heating tempering according to the method of the present invention. 1... Heating station, 2... Cooling station. 3... Welded parts, 3a... Welded parts. 3b...Shaft material, 3C...Welded part. 4...Heating coil, 5...Sub center, 6...Lower center. 7... Whole cooling jacket. 8...Indirect cooling jacket. 9...Injection port, 10...Cooling water supply port Applicant: Toyota Motor Corporation Figure 1 Figure 2 Figure 3
Claims (1)
化させる。高周波誘導加熱焼戻しに伴なう。 高周波誘導加熱後の冷却方法であって、異種材質間の溶
接後、まず、溶接硬化した部位を軟化させるのに必飲な
ｊｙｉ定温腹まで、溶接硬化した部位を冷却することに
より、高周波誘導加熱部以外の部位を加熱しｔコ後、高
周波誘導加熱部を間接的に冷却して、溶接硬化した７９
Ｘ位の割れ、再硬化を防止しうるｎ４度まで徐冷させ、
ついで、高周波誘導加熱部を含む溶（＆部品全体を、冷
却することを特徴とする。高周波誘導加熱焼戻しの冷却
方法。[Scope of Claims] 1. After welding different materials, the weld is hardened and the parts are welded. Associated with high frequency induction heating tempering. A cooling method after high-frequency induction heating, in which after welding different materials, the hardened part is first cooled down to the constant temperature belly, which is necessary to soften the hardened part. After heating the parts other than the part, the high-frequency induction heating part was indirectly cooled to harden the weld.
Slowly cool to n4 degrees, which can prevent cracking at position X and rehardening.
Then, the entire melt (& parts) including the high-frequency induction heating section is cooled.A cooling method for high-frequency induction heating tempering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20017783A JPS6092426A (en) | 1983-10-26 | 1983-10-26 | Cooling method of high-frequency induction heating and tempering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20017783A JPS6092426A (en) | 1983-10-26 | 1983-10-26 | Cooling method of high-frequency induction heating and tempering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6092426A true JPS6092426A (en) | 1985-05-24 |
Family
ID=16420070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20017783A Pending JPS6092426A (en) | 1983-10-26 | 1983-10-26 | Cooling method of high-frequency induction heating and tempering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092426A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383315B1 (en) * | 1998-01-07 | 2002-05-07 | Rasmussen Gmbh | Profile clamp and method for manufacturing a profile clamp |
| KR100727754B1 (en) | 2006-03-14 | 2007-06-13 | 김봉수 | Heat treatment method for punching stamping die |
| EP3044341A4 (en) * | 2013-09-09 | 2017-04-12 | Broen A/S | System and method for annealing of an item, which comprises heat-sensitive parts and annealed item |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5887227A (en) * | 1981-11-18 | 1983-05-25 | Nippon Kokan Kk <Nkk> | Post-annealed cooling method for ERW welded steel pipes |
-
1983
- 1983-10-26 JP JP20017783A patent/JPS6092426A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5887227A (en) * | 1981-11-18 | 1983-05-25 | Nippon Kokan Kk <Nkk> | Post-annealed cooling method for ERW welded steel pipes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383315B1 (en) * | 1998-01-07 | 2002-05-07 | Rasmussen Gmbh | Profile clamp and method for manufacturing a profile clamp |
| KR100727754B1 (en) | 2006-03-14 | 2007-06-13 | 김봉수 | Heat treatment method for punching stamping die |
| EP3044341A4 (en) * | 2013-09-09 | 2017-04-12 | Broen A/S | System and method for annealing of an item, which comprises heat-sensitive parts and annealed item |
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