JPH02236217A - Apparatus for heating metal material - Google Patents
Apparatus for heating metal materialInfo
- Publication number
- JPH02236217A JPH02236217A JP5820789A JP5820789A JPH02236217A JP H02236217 A JPH02236217 A JP H02236217A JP 5820789 A JP5820789 A JP 5820789A JP 5820789 A JP5820789 A JP 5820789A JP H02236217 A JPH02236217 A JP H02236217A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- furnace
- passage
- preheating
- heating furnace
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 69
- 239000007769 metal material Substances 0.000 title claims abstract description 15
- 238000005242 forging Methods 0.000 abstract description 24
- 239000002994 raw material Substances 0.000 abstract 3
- 230000001939 inductive effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 39
- 238000002485 combustion reaction Methods 0.000 description 11
- 239000000446 fuel Substances 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、金属材を加熱する装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an apparatus for heating metal materials.
〔従来の技術］
従来の金属材加熱装置、例えば比較的小物の鍛造用素材
を熱間鍛造するために用いられている加熱炉は、加熱炉
の燃焼室内に筒状の加熱室を横断するように設け、バー
ナで燃焼室を加熱し、その熱で加熱室内を移動する鍛造
用素材を間接加熱する構造になっている。[Prior Art] A conventional metal material heating device, for example, a heating furnace used for hot forging relatively small forging materials, has a heating chamber with a cylindrical heating chamber traversing the combustion chamber of the heating furnace. The structure is such that a burner heats the combustion chamber, and the heat is used to indirectly heat the forging material moving inside the heating chamber.
〔発明が解決しようとする諜Ｈ］
ところで、上記のような加熱炉は間接加熱であるため加
熱効果が悪く、この加熱炉で鍛造用素材を鍛造温度にま
で加熱するには、加熱室内での鍛造用素材の滞炉時間を
長くする必要があり、このため、鍛造用素材の送り速度
を遅くするか加熱室を長くしなければならず、従って加
熱に時間がかかったり加熱炉全体が大型化するという問
題がある．
この発明の課題は、上記のような問題点を解決するため
、全体を大型化することなく、金属材の加熱が速やかに
能率よく行なえる金属材の加熱装置を提供することが目
的である。[Intelligence to be solved by the invention] By the way, since the above-mentioned heating furnace uses indirect heating, the heating effect is poor, and in order to heat the forging material to the forging temperature with this heating furnace, it is necessary to It is necessary to lengthen the residence time of the forging material, and for this reason, the feeding speed of the forging material must be slowed down or the heating chamber must be lengthened, which results in longer heating times and an increase in the size of the entire heating furnace. There is a problem with doing this. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a metal material heating device that can quickly and efficiently heat a metal material without increasing the overall size.
上記のような課題を解決するため、この発明は予熱炉と
この予熱炉の後段に配置される加熱炉とで横成され、予
熱炉内を通過して予備加熱された金属材を加熱炉で本加
熱するようにした構成としたものである。In order to solve the above-mentioned problems, this invention consists of a preheating furnace and a heating furnace placed after the preheating furnace, and the metal material that has passed through the preheating furnace and has been preheated is heated in the heating furnace. The structure is such that main heating is performed.
金属材を予熱炉内に供給し、この予熱炉内を移動する間
に所定の予熱温度にまで加熱し、予熱後の金属材は次に
加熱炉内に供給し、この加熱炉で所定温度にまで本加熱
する。The metal material is supplied into a preheating furnace, and heated to a predetermined preheating temperature while moving through the preheating furnace.The metal material after preheating is then supplied into the heating furnace, where it is heated to a predetermined temperature Heat until fully heated.
〔実施例］
以下、この発明の実施例を添付図面に基づいて説明する
。[Example] Hereinafter, an example of the present invention will be described based on the accompanying drawings.
第１図は金属材として鍛造用素材を加熱する装置を示し
ており、加熱装置は予熱炉１と、この予熱炉１の後段に
配置した加熱炉１１とによって構成され、先ず予熱炉１
で鍛造用素材をＡを所定の温度にまで予熱し、次に予熱
素材を加熱炉１１内に供給し、鍛造に必要な温度にまで
本加熱するようになっている。FIG. 1 shows a device for heating a material for forging as a metal material, and the heating device is composed of a preheating furnace 1 and a heating furnace 11 placed after the preheating furnace 1.
The material for forging A is preheated to a predetermined temperature, and then the preheated material is fed into the heating furnace 11 and is heated to the temperature required for forging.
前記予熱炉１は、第２図のように誘導加熱炉を用いてお
り、炉零体２の内部に水平状態で貫通するように設けた
素材通路３の外周に誘導加熱コイル４を配置し、図示省
略した誘導加熱発振器、冷却装置、受電盤等を用い、素
材通路３を通過する鍛造用素材Ａを予め設定された予熱
温度に加熱する．
なお、予熱炉１の素材通路３に対する鍛造用素材Ａの供
給は、ビンチローラやシリンダ等の送り装置を用いて行
なう。The preheating furnace 1 uses an induction heating furnace as shown in FIG. 2, and an induction heating coil 4 is disposed around the outer periphery of a material passage 3 provided horizontally penetrating inside the furnace zero body 2. Using an induction heating oscillator, a cooling device, a power receiving board, etc. (not shown), the forging material A passing through the material passage 3 is heated to a preset preheating temperature. Note that the forging material A is supplied to the material passage 3 of the preheating furnace 1 using a feeding device such as a Vinci roller or a cylinder.
ちなみに、予熱炉１による鍛造用素材Ａの予熱温度は、
誘導加熱によって５００゜Ｃ〜１０００℃程度である。By the way, the preheating temperature of the forging material A by the preheating furnace 1 is:
The temperature is about 500°C to 1000°C by induction heating.
次に、予熱後の鍛造用素材Ａを鍛造温度に本加熱する加
熱炉１１は、第３図と第４図に示すように、内部の燃焼
室１２を縦断するように筒状の通路１３が、加熱炉１１
の上部から下部の取出口１４に達するように貫通状に取
付けられている。Next, as shown in FIGS. 3 and 4, the heating furnace 11 for main heating the forging material A after preheating to the forging temperature has a cylindrical passage 13 extending vertically through the internal combustion chamber 12. , heating furnace 11
It is attached in a penetrating manner so as to reach the outlet 14 from the upper part of the lower part.
上記加熱炉１１と通路１３は、耐火材を用いて形成され
、前記燃焼室１２内を均等に加熱するため、複数のバー
ナ１５、１５′が取付けられ、加熱炉１１の下部で、加
熱された素材Ａを加熱炉１１から取出す取出口１４には
、通路１３の素材排出口１７に向けて燃料供給部１８が
設けてある。The heating furnace 11 and the passage 13 are formed using a refractory material, and in order to uniformly heat the inside of the combustion chamber 12, a plurality of burners 15, 15' are attached to the heating furnace 11. A fuel supply section 18 is provided at the outlet 14 for taking out the material A from the heating furnace 11 toward the material discharge port 17 of the passage 13 .
また、加熱炉１１の燃焼室１２内には、バーナ１５、１
５′によって燃焼したガスを加熱炉１１の外に排気させ
るための煙道１９が設けられている．
上記加熱炉１１の取出口１４で通路１３の下方位置には
、複数のピンチローラ２ｏ、２０’が設けてあり、この
ピンチローラ２０、２０’によって自重で排出口１７側
に向けて移動してきた素材Ａを保持し、必要時に素材Ａ
を間欠的に取出せるようになっている．
また、加熱炉１１の燃焼室１２内には、燃焼室１２を仕
切る遮蔽板２１が通路の長手方向に沿って取付けられて
おり、この遮蔽板２１により、燃焼室１２内を均一に、
しかも急速に加熱できるような構造になっている。In addition, burners 15 and 1 are provided in the combustion chamber 12 of the heating furnace 11.
A flue 19 is provided for exhausting the gas combusted by the heating furnace 11 to the outside of the heating furnace 11. A plurality of pinch rollers 2o, 20' are provided below the passage 13 at the outlet 14 of the heating furnace 11, and the pinch rollers 20, 20' move the rollers toward the outlet 17 by their own weight. Holds material A and releases material A when needed
can be taken out intermittently. In addition, a shielding plate 21 that partitions the combustion chamber 12 is installed along the longitudinal direction of the passage inside the combustion chamber 12 of the heating furnace 11. This shielding plate 21 allows the inside of the combustion chamber 12 to be uniformly distributed.
Moreover, it has a structure that allows for rapid heating.
前記予熱炉１は加熱炉１１の上部に配置され、予熱炉１
の素材通路３から押出された鍛造用素材Ａが加熱炉１１
における通路１３内に上端から供給されるよう、予熱炉
１と加熱炉１１０間に鍛造用素材Ａの誘導機構３１が配
置されている．なお、予熱炉１及び加熱炉１１は図示の
構造に限定されるものではなく、鍛造用素材Ａを所定の
温度に予熱及び本加熱できるものであればよく、また図
示の予熱炉１を縦向きに配置し、予熱炉１の通路３と加
熱炉１１の通路１３を直給するようにしてもよい．
この発明の加熱装置は上記のような構成であり、先ず、
鍛造用素材Ａを予熱炉１の通路３に供給し、この通路３
内を移動する上記素材Ａを設定した予熱温度にまで加熱
する．
加熱炉１１は燃焼室１２内をバーナ１５、１５′で加熱
しておき、予熱炉１を出た鍛造用素材Ａは通路１３内に
上端から供給される。The preheating furnace 1 is disposed above the heating furnace 11, and the preheating furnace 1
The forging material A extruded from the material passage 3 is transferred to the heating furnace 11.
A guiding mechanism 31 for the forging material A is arranged between the preheating furnace 1 and the heating furnace 110 so that it is supplied into the passage 13 from the upper end. Note that the preheating furnace 1 and the heating furnace 11 are not limited to the structure shown in the drawings, and may be of any structure as long as they can preheat and main-heat the forging material A to a predetermined temperature. The passage 3 of the preheating furnace 1 and the passage 13 of the heating furnace 11 may be directly connected to each other. The heating device of this invention has the above-mentioned configuration, and first,
The forging material A is supplied to the passage 3 of the preheating furnace 1, and this passage 3
The material A moving inside is heated to the preheating temperature set. The combustion chamber 12 of the heating furnace 11 is heated by burners 15 and 15', and the forging material A leaving the preheating furnace 1 is fed into the passage 13 from the upper end.
通路１３内の鍛造用素材Ａは、燃焼室１２の熱で間接加
熱されると共に、取出口１４に設けた燃料供給部１８か
ら燃料を噴射させ、取出口付近の空気と混合させて燃焼
させると、通路１３の排出口１７側は直接加熱される．
この状態で、加熱室１３の供給口２２から素材Ａを供給
すれば、素材Ａは２，速に加熱され、加熱された素材Ａ
を取出口１４から取り出せば、通路１３内の素材Ａは自
重で排出口１７側へと移動する．排出口１７から取出口
１４に移動した素材は、加熱炉１１の取出口１４に設け
たピンチローラ２０、２０′で挟まれた状態で保持され
、ピンチローラ２０、２０′を回転させれば所要の温度
に加熱された素材Ａを間欠的に取出すことができる，
なお、上記通路１３は、加熱炉１１の設置面に対して第
１図の如＜ ＋ｌ＋斜させてもよいが、第３図のように
垂直に近い程、通路１３の内面を損傷させることなく、
素材Ａを移動させることができ、通路１３内面の損傷を
少なくすれば、通路１３の壁面肉厚を薄くできるので、
通路１３の加熱効率を良くすることができるが、水平に
配置してもよい。The forging material A in the passage 13 is indirectly heated by the heat of the combustion chamber 12, and fuel is injected from the fuel supply section 18 provided at the outlet 14, mixed with air near the outlet and combusted. , the outlet 17 side of the passage 13 is directly heated.
In this state, if the material A is supplied from the supply port 22 of the heating chamber 13, the material A will be heated at a rate of 2.
When the material A is taken out from the outlet 14, the material A in the passage 13 moves toward the outlet 17 by its own weight. The material moved from the discharge port 17 to the take-out port 14 is held between pinch rollers 20 and 20' provided at the take-out port 14 of the heating furnace 11, and is held as required by rotating the pinch rollers 20 and 20'. It is possible to intermittently take out the material A heated to a temperature of The closer the vertical direction is, the more the inner surface of the passage 13 is not damaged.
If material A can be moved and damage to the inner surface of the passage 13 is reduced, the wall thickness of the passage 13 can be made thinner.
Although the heating efficiency of the passage 13 can be improved, it may be arranged horizontally.
また、加熱炉１１の取出口１４に設けた燃料供給部１８
によって燃焼させた後の高温の燃焼ガスは通路１３の排
出口１７から内部に流入するので、通路１３内の酸素を
燃焼させ、素材Ａを直接加熱によって加熱できると共に
、酸素の燃焼により、ｉｌｌ路１３内の素材Ａにスケー
ルが発生しないので、スケール落し作業が不要となり、
スケール落しによる素材Ａの損失もなくすことができる
．なお、燃料供給部は通路１３内の下部内側に設置する
ようにしてもよい．
なお、加熱装置は鍛造用素材の加熱に用いる例を示した
が、例えば各種金属材を焼入れするための熱処理として
用いるようにしてもよい．〔発明の効果〕
以上のように、この発明によると、予熱炉の後段に加熱
炉を配置し、予熱炉で予熱した金属材を加熱炉で所定温
度に本加熱するようにしたので、金属材を効率よく加熱
することができ、加熱炉に対して比較的小型の予熱炉を
付加するだけでよいので全体としての小型化を図ること
ができる。Further, a fuel supply section 18 provided at the outlet 14 of the heating furnace 11
The high-temperature combustion gas after being combusted flows into the interior from the exhaust port 17 of the passage 13, so that the oxygen in the passage 13 is combusted, and the material A can be heated by direct heating. Since no scale is generated on the material A in 13, there is no need for descaling work.
Loss of material A due to descaling can also be eliminated. Note that the fuel supply section may be installed inside the lower part of the passage 13. Although the heating device has been shown as an example of being used to heat a forging material, it may also be used, for example, for heat treatment to harden various metal materials. [Effects of the Invention] As described above, according to the present invention, the heating furnace is disposed after the preheating furnace, and the metal material preheated in the preheating furnace is main heated to a predetermined temperature in the heating furnace. can be heated efficiently, and since it is only necessary to add a relatively small preheating furnace to the heating furnace, the overall size can be reduced.
第１図はこの発明に係る加熱装置の正面図、第２図は同
上における予熱炉の縦断正面図、第３図は同加熱炉の縦
断正面図、第４図は同上の平面図である．
１・・・・・・予熱炉、 ３・・・川通路、１１
・・・・・・加熱炉、 １２・・・・・・燃焼室
、１３・・・・・・通路、 Ａ・・・・・・鍛造
用素材。
第１世
第２図
第３図
第４図Fig. 1 is a front view of the heating device according to the present invention, Fig. 2 is a longitudinal sectional front view of the preheating furnace in the same, Fig. 3 is a longitudinal sectional front view of the heating furnace, and Fig. 4 is a plan view in the same. 1... Preheating furnace, 3... River passage, 11
... Heating furnace, 12 ... Combustion chamber, 13 ... Passage, A ... Forging material. 1st generation Figure 2 Figure 3 Figure 4
Claims (1)
で構成され、予熱炉内を通過して予備加熱された金属材
を加熱炉で本加熱するようにした金属材の加熱装置。(1) A heating device for metal materials that is composed of a preheating furnace and a heating furnace placed after the preheating furnace, and is configured to main-heat the metal material that has passed through the preheating furnace and has been preheated in the heating furnace. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820789A JPH02236217A (en) | 1989-03-09 | 1989-03-09 | Apparatus for heating metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820789A JPH02236217A (en) | 1989-03-09 | 1989-03-09 | Apparatus for heating metal material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02236217A true JPH02236217A (en) | 1990-09-19 |
| JPH0527684B2 JPH0527684B2 (en) | 1993-04-22 |
Family
ID=13077598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5820789A Granted JPH02236217A (en) | 1989-03-09 | 1989-03-09 | Apparatus for heating metal material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02236217A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS487527U (en) * | 1971-06-15 | 1973-01-27 |
-
1989
- 1989-03-09 JP JP5820789A patent/JPH02236217A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS487527U (en) * | 1971-06-15 | 1973-01-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0527684B2 (en) | 1993-04-22 |
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