JPH0382707A - Continuous type vacuum heat treatment furnace - Google Patents
Continuous type vacuum heat treatment furnaceInfo
- Publication number
- JPH0382707A JPH0382707A JP22008789A JP22008789A JPH0382707A JP H0382707 A JPH0382707 A JP H0382707A JP 22008789 A JP22008789 A JP 22008789A JP 22008789 A JP22008789 A JP 22008789A JP H0382707 A JPH0382707 A JP H0382707A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- heat treatment
- vacuum heat
- cooling
- metal material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 238000011282 treatment Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 14
- 239000007769 metal material Substances 0.000 abstract description 33
- 238000001816 cooling Methods 0.000 abstract description 17
- 238000003303 reheating Methods 0.000 abstract description 12
- 238000005496 tempering Methods 0.000 abstract description 10
- 238000010926 purge Methods 0.000 abstract description 8
- 238000010791 quenching Methods 0.000 abstract description 7
- 230000000171 quenching effect Effects 0.000 abstract description 7
- 239000011810 insulating material Substances 0.000 abstract description 5
- 238000000137 annealing Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は連続式真空熱処理炉に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to a continuous vacuum heat treatment furnace.
被処理材の真空熱処理に真空熱処理炉が使用される。該
真空熱処理炉は開閉可能な扉で間仕切りされた複数の処
理室を備え、これらの各処理室に一連の搬送装置が装備
されてなるもので、これには該搬送装置が駆動手段へと
接続されたローラ列からなるローラハース式のものや、
該搬送装置が固定ビームと駆動手段へと接続された可動
ビームとからなるウオーキングビーム式のもの等がある
。A vacuum heat treatment furnace is used for vacuum heat treatment of the material to be treated. The vacuum heat treatment furnace is equipped with a plurality of processing chambers partitioned by doors that can be opened and closed, and each of these processing chambers is equipped with a series of transfer devices, which are connected to a driving means. roller hearth type consisting of rows of rollers,
There is a walking beam type in which the conveying device consists of a fixed beam and a movable beam connected to a driving means.
ところで、被処理材の真空熱処理においては、該被処理
材を加熱しそして冷却した後に再加熱する場合が多い９
例えば金属材料を焼入れした後に焼戻しする場合、金属
材料を焼結した後に時効処理する場合、金属材料を焼結
した後に焼戻しする場合等である。By the way, in vacuum heat treatment of a material to be treated, the material to be treated is often heated, cooled, and then reheated9.
For example, when a metal material is hardened and then tempered, when a metal material is sintered and then subjected to an aging treatment, when a metal material is sintered and then tempered, etc.
本発明は、上記のような場合に有効な連続式真空熱処理
炉に関するものである。The present invention relates to a continuous vacuum heat treatment furnace that is effective in the above cases.
〈従来の技術、その課題〉
従来、被処理材を加熱しそして冷却した後に再加熱する
連続式真空熱処理炉は提案されていない、従来は、被処
理材を加熱しそして冷却した後に再加熱するという処理
を半連続的に繰返して行なう場合１例えば金属材料を焼
入れした後に焼戻しするという処理を半連続的に繰返し
て行なう場合、２台の真空熱処理炉が使用されている。<Conventional technology and its problems> Conventionally, a continuous vacuum heat treatment furnace that heats the material to be treated, cools it, and then reheats it has not been proposed. Conventionally, the material to be treated is heated, cooled, and then reheated. Case 1: For example, when a process of hardening and then tempering a metal material is performed repeatedly semi-continuously, two vacuum heat treatment furnaces are used.
該真空熱処理炉はともに、処理室として、開閉可能な屏
で間仕切りされた真空パージ室及び加熱室並びに冷却室
を備え、これらの各処理室に一連の搬送装置が装備され
てなるもので、先ず１台目の真空熱処理炉において、最
前の真空パージ室で真空パージし、引続き中間の加熱室
で加熱した後に、最後の冷却室で冷却することにより金
属材料を焼入れする０次に焼入れした金属材料を２台目
の真空熱処理炉へ移送し、該２台目の真空熱処理炉にお
いて、最前の真空パージ室で再真空パージし、引続き中
間の加熱室で再加熱した後に、最後の冷却室で再冷却す
ることにより金属材料を焼戻しする。そして、２台目の
真空熱処理炉において金属材料を焼戻しする間に、１台
目の真空熱処理炉において別の金属材料を焼入れすると
いうものである。Both of the vacuum heat treatment furnaces are equipped with a vacuum purge chamber, a heating chamber, and a cooling chamber, each of which is partitioned by an openable and closable screen, and each of these treatment chambers is equipped with a series of transfer devices. In the first vacuum heat treatment furnace, the metal material is vacuum purged in the first vacuum purge chamber, then heated in the intermediate heating chamber, and then cooled in the last cooling chamber to harden the metal material. Zero-hardened metal material is transferred to the second vacuum heat treatment furnace, and in the second vacuum heat treatment furnace, it is re-vacuum purged in the first vacuum purge chamber, then reheated in the intermediate heating chamber, and then re-vacuumed in the last cooling chamber. The metal material is tempered by cooling. While the metal material is tempered in the second vacuum heat treatment furnace, another metal material is hardened in the first vacuum heat treatment furnace.
ところが、かかる従来の真空熱処理炉には、例えば上記
のように金属材料を焼入れした後に焼戻しする場合、次
のような課題がある。これらの課題は、金属材料を焼結
した後に時効処理する場合や金属材料を焼結した後に焼
戻しする場合等、被処理材を加熱しそして冷却した後に
再加熱するその他の場合においても同様である。However, such conventional vacuum heat treatment furnaces have the following problems, for example, when tempering a metal material after hardening it as described above. These issues are similar in other cases where the material to be treated is heated, cooled, and then reheated, such as when a metal material is subjected to aging treatment after sintering, or when a metal material is tempered after sintering. .
１）１台目の真空熱処理炉において焼入れした金属材料
を２台目の真空熱処理炉へ移送する作業が必要である。1) It is necessary to transfer the metal material hardened in the first vacuum heat treatment furnace to the second vacuum heat treatment furnace.
またこの際、ハンドリングや品質保持のために、１台目
の真空熱処理炉において金属材料を充分に冷却しなけれ
ばならず、それだけ長い時間が必要である。したがって
、作業性が悪い、不充分な冷却のままで１台目の真空熱
処理炉から金属材料を取出すと、単に該金属材料のハン
ドリングが困難であるだけでなく、該金属材料が酸化や
汚染を受けてしまう。Further, at this time, the metal material must be sufficiently cooled in the first vacuum heat treatment furnace for handling and quality maintenance, which requires a correspondingly long time. Therefore, if metal materials are removed from the first vacuum heat treatment furnace with poor workability and insufficient cooling, not only will it be difficult to handle the metal materials, but the metal materials will also be susceptible to oxidation and contamination. I'll accept it.
２） １台目の真空熱処理炉において充分に冷却した金
属材料を２台目の真空熱処理炉において再加熱するため
、該再加熱の際に金属材料の残熱を有効活用することが
できない、したがって、熱効率が悪い。2) Since the metal material that has been sufficiently cooled in the first vacuum heat treatment furnace is reheated in the second vacuum heat treatment furnace, the residual heat of the metal material cannot be effectively utilized during the reheating. , poor thermal efficiency.
３）合計で６＠の処理室が必要であり、処理室の数が多
い、したがって、設置面積等も含め総じて不経済である
。3) A total of 6 processing chambers are required, which is a large number of processing chambers, and is therefore uneconomical in terms of installation area and the like.
〈発明が解決しようとする課題、その解決手段〉本発明
は叙上の如き従来の課題を解決する改良された連続式真
空熱処理炉を提供するものである。<Problems to be Solved by the Invention and Means for Solving the Problems> The present invention provides an improved continuous vacuum heat treatment furnace that solves the conventional problems as described above.
しかして本発明は、
開閉可能な扉で間仕切りされた複数の処理室を備え、こ
れらの各処理室に一連の搬送装置が装備された連続式真
空熱処理炉であって、前工程の処理室で加熱しそして冷
却した被処理材を引続き後工程の処理室で再加熱するよ
うに構成してなることを骨子とする連続式真空熱処理炉
に係る。Therefore, the present invention provides a continuous vacuum heat treatment furnace comprising a plurality of processing chambers partitioned by doors that can be opened and closed, and each of these processing chambers is equipped with a series of conveyance devices. The present invention relates to a continuous vacuum heat treatment furnace that is configured so that a heated and cooled material to be treated is subsequently reheated in a processing chamber in a subsequent process.
く作用〉
本発明において肝要な点は、前工程の処理室で加熱しそ
して冷却した被処理材を引続！！後工程の処理室で再加
熱するように構成した処にある６例えば金属材料を焼入
れした後に焼戻しする場合、処理室を真空パージ室→加
熱室→冷却室→再加熱室→再冷却室の室構成とし、前工
程の真空パージ室→加熱室→冷却室で焼入れした金属材
料をそのまま引続き後工程の再加熱室→再冷却室で焼戻
しするのである。このように構成すると、焼入れした金
属材料を２台目の真空熱処理炉へ移送する必要がなく、
また焼入れした金属材料を一旦炉外へ取出してハンドリ
ングするわけではないので、焼入れの際の冷却室におい
ては金属材料を該焼入れや後の焼戻しの条件を充足する
程度に冷却すればよく、それだけ時間を短縮することが
でき、しかも焼入れした金属材料が酸化や汚染を受ける
こともない、更に焼戻しの際の再加熱室においては焼入
れした金属材料の残熱を有効活用してこれを再加熱する
ことができ、その上、処理室の数を合計で５個に減らす
ことができるのである。The important point in the present invention is that the material to be treated, which has been heated and cooled in the processing chamber of the previous step, is continuously heated and cooled! ! 6. For example, when tempering a metal material after quenching, the processing chamber is configured to be reheated in a processing chamber in the subsequent process. In this structure, the metal material hardened in the vacuum purge chamber → heating chamber → cooling chamber in the previous process is then tempered in the reheating chamber → recooling chamber in the subsequent process. With this configuration, there is no need to transfer the hardened metal material to the second vacuum heat treatment furnace.
In addition, since the quenched metal material is not taken out of the furnace and handled, it is only necessary to cool the metal material in the cooling chamber during quenching to the extent that it satisfies the conditions for the quenching and later tempering, which takes a longer time. In addition, the quenched metal material is not subject to oxidation or contamination. Furthermore, in the reheating chamber during tempering, the residual heat of the quenched metal material is effectively used to reheat it. Moreover, the number of processing chambers can be reduced to five in total.
以下１図面に基づいて本発明の構成を更に詳細に説明す
る。The configuration of the present invention will be explained in more detail below based on one drawing.
〈実施例〉
第１図は本発明の一実施例を断面で略示する全体図であ
る０図面では金属材料を焼入れした後に焼戻しする連続
式真空熱処理炉を示している。<Embodiment> FIG. 1 is an overall cross-sectional view schematically showing an embodiment of the present invention. The drawing shows a continuous vacuum heat treatment furnace for hardening and then tempering a metal material.
真空容器１１の内部に、処理室として、開閉可能な扉２
１〜２６で間仕切りされた、真空パージ室３１、加熱室
３２、冷却室３３、再加熱室３４及び再冷却室３５がこ
の順で形成されており、これらの各処理室には、いずれ
も図示しない、真空ポンプ、送気管及び排気管等が接続
されている。Inside the vacuum container 11, there is a door 2 that can be opened and closed as a processing chamber.
A vacuum purge chamber 31, a heating chamber 32, a cooling chamber 33, a reheating chamber 34 and a recooling chamber 35 are formed in this order. Vacuum pump, air supply pipe, exhaust pipe, etc. are connected.
加熱室３２は、＠２２と一体的に開閉する蓋体４１及び
扉２３と一体的に開閉する蓋体４２を有する断熱材５１
で囲繞されており、同様に再加熱室３４は、扉２４と一
体的に開閉する蓋体４３及び１ｎ２５と一体的に開閉す
る蓋体４４を有する断熱材５２で囲繞されていて、加熱
室３２及び再加熱室３４の各内部には図示しないヒータ
が装備されている。また冷却室３３及び再冷却室３５に
はそれぞれファン６１．６２が装備されている。そして
各処理室を通り炉外に亘って、ローラ列７１が敷設され
ており、ローラ列７１は図示しない駆動手段へと接続さ
れている。The heating chamber 32 includes a heat insulating material 51 having a lid 41 that opens and closes integrally with @22 and a lid 42 that opens and closes integrally with the door 23.
Similarly, the reheating chamber 34 is surrounded by a heat insulating material 52 having a lid 43 that opens and closes integrally with the door 24 and a lid 44 that opens and closes integrally with 1n25. Each of the reheating chambers 34 is equipped with a heater (not shown). Further, the cooling chamber 33 and the recooling chamber 35 are each equipped with fans 61 and 62. A row of rollers 71 is installed extending through each processing chamber and outside the furnace, and the row of rollers 71 is connected to a drive means (not shown).
図示した一実施例は、ローラハース式の連続式真空熱処
理炉であり、前工程の真空パージ室３１→加熱室３２→
冷却室３３で金属材料Ａを焼入れし、焼入れした金属材
料Ａをそのまま引続き後工程の再加熱室３４→再冷却室
３５で焼戻しする構成である。The illustrated embodiment is a roller hearth type continuous vacuum heat treatment furnace, in which the vacuum purge chamber 31 in the previous process → the heating chamber 32 →
The metal material A is hardened in the cooling chamber 33, and the hardened metal material A is subsequently tempered in the subsequent reheating chamber 34→recooling chamber 35.
以上、本発明の構成を図示した一実施例に基づいて説明
したが、本発明が該−実施例に限定されるというもので
はない０本発明の肝要な点は、前工程の処理室で加熱し
そして冷却した被処理材を後工程の処理室で再加熱する
ように構成した処にあり、この限りにおいて、被処理材
の処理目的に応じ、各処理室の室構成を適宜に変えるこ
とができる。また密封性の点で、図示したようなローラ
ハース式のものが好ましいが１例えばウオーキングビー
ム式のものでもよいのである。The configuration of the present invention has been explained above based on an illustrated embodiment, but the present invention is not limited to this embodiment. The important point of the present invention is that Then, the cooled material to be processed is reheated in the processing chamber in the subsequent process, and to this extent, the configuration of each processing chamber can be changed as appropriate depending on the purpose of processing the material to be processed. can. Further, in terms of sealing performance, a roller hearth type as shown in the figure is preferred, but a walking beam type, for example, may also be used.
〈発明の効果〉
既に明らかなように、以上説明した本発明には、被処理
材を加熱しそして冷却した後に再加熱する該被処理材の
真空熱処理に際し、作業性及び熱効率が良く、経済的で
あり、高品質の処理材を得ることができるという効果が
ある。<Effects of the Invention> As is already clear, the present invention described above has good workability, thermal efficiency, and economical properties in vacuum heat treatment of a material to be treated, in which the material to be treated is heated, cooled, and then reheated. This has the effect that high quality treated materials can be obtained.
第１図は本発明の一実施例を断面で暗示する全体図であ
る。
１１・・・・真空容器、２１〜２Ｂ・・・・屏３１・・
・・真空パージ室、３２・・・・加熱室３３・・・・冷
却室、３４・・・・再加熱室３５・・・・再冷却室、４
１〜４ト・・−蓋体５１．５２・・・・断熱材、８１．
８２・・・・ファン７１・・・・ローラ列FIG. 1 is an overall view showing an embodiment of the present invention in cross section. 11...Vacuum container, 21-2B...Ping 31...
...Vacuum purge chamber, 32...Heating chamber 33...Cooling chamber, 34...Reheating chamber 35...Recooling chamber, 4
1 to 4 G...-Lid body 51.52...Insulating material, 81.
82...Fan 71...Roller row
Claims (1)
、これらの各処理室に一連の搬送装置が装備された連続
式真空熱処理炉であって、前工程の処理室で加熱しそし
て冷却した被処理材を引続き後工程の処理室で再加熱す
るように構成してなる連続式真空熱処理炉。 ２、搬送装置が駆動手段へと接続されたローラ列からな
るものである請求項１記載の連続式真空熱処理炉。[Claims] 1. A continuous vacuum heat treatment furnace comprising a plurality of processing chambers partitioned by doors that can be opened and closed, each of which is equipped with a series of conveyance devices, which A continuous vacuum heat treatment furnace configured to heat and cool a treated material in a chamber and then reheat it in a subsequent treatment chamber. 2. The continuous vacuum heat treatment furnace according to claim 1, wherein the conveying device comprises a roller row connected to a driving means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22008789A JPH0382707A (en) | 1989-08-26 | 1989-08-26 | Continuous type vacuum heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22008789A JPH0382707A (en) | 1989-08-26 | 1989-08-26 | Continuous type vacuum heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0382707A true JPH0382707A (en) | 1991-04-08 |
Family
ID=16745725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22008789A Pending JPH0382707A (en) | 1989-08-26 | 1989-08-26 | Continuous type vacuum heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0382707A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100823987B1 (en) * | 2006-11-27 | 2008-04-22 | 주식회사 에스에이씨 | Continuous vacuum heat treatment furnace with sealing door |
| CN105695718A (en) * | 2016-01-30 | 2016-06-22 | 聂玲 | Vacuum-induction thermal treatment furnace for shaft-type elements |
| JP2020535311A (en) * | 2018-02-01 | 2020-12-03 | 福建省長汀金龍希土有限公司Ｆｕｊｉａｎ Ｃｈａｎｇｔｉｎｇ Ｇｏｌｄｅｎ Ｄｒａｇｏｎ Ｒａｒｅ−Ｅａｒｔｈ Ｃｏ．， Ｌｔｄ． | Equipment and methods for continuous grain boundary diffusion and heat treatment |
-
1989
- 1989-08-26 JP JP22008789A patent/JPH0382707A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100823987B1 (en) * | 2006-11-27 | 2008-04-22 | 주식회사 에스에이씨 | Continuous vacuum heat treatment furnace with sealing door |
| CN105695718A (en) * | 2016-01-30 | 2016-06-22 | 聂玲 | Vacuum-induction thermal treatment furnace for shaft-type elements |
| CN105695718B (en) * | 2016-01-30 | 2017-12-01 | 张四玉 | A kind of axle class component vacuum induction heat-treatment furnace |
| JP2020535311A (en) * | 2018-02-01 | 2020-12-03 | 福建省長汀金龍希土有限公司Ｆｕｊｉａｎ Ｃｈａｎｇｔｉｎｇ Ｇｏｌｄｅｎ Ｄｒａｇｏｎ Ｒａｒｅ−Ｅａｒｔｈ Ｃｏ．， Ｌｔｄ． | Equipment and methods for continuous grain boundary diffusion and heat treatment |
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