JPH024120Y2 - - Google Patents
Info
- Publication number
- JPH024120Y2 JPH024120Y2 JP1984106899U JP10689984U JPH024120Y2 JP H024120 Y2 JPH024120 Y2 JP H024120Y2 JP 1984106899 U JP1984106899 U JP 1984106899U JP 10689984 U JP10689984 U JP 10689984U JP H024120 Y2 JPH024120 Y2 JP H024120Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- cylinder
- forging
- upper cylinder
- 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.)
- Expired
Links
- 238000005242 forging Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 description 15
- 239000000919 ceramic Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
Landscapes
- Forging (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Description
【考案の詳細な説明】
本考案は、主にセラミツクチユーブ型鍛造炉に
おいて使用される当該セラミツクチユーブ、或い
は、ニユーセラミツクチユーブのみならず、アル
ミナセメント主体の成形品であるキヤスタブルチ
ユーブ等の鍛造炉用チユーブに関するものであ
る。従来、完全密閉型間接加熱炉のカテゴリーに
属する所謂セラミツクチユーブ型鍛造炉は、当該
加熱炉内に中空円筒状に捲回した加熱コイルを予
じめ複数本差し渡して並設支持し、当該個々の加
熱コイル内に円筒状のチユーブを緩やかに貫挿し
て支持し、当該チユーブ内に鍛造用処理物である
丸棒等をプツシヤ等で連続的に給造すべくなし、
高周波によつて給送処理物を1200〜1300℃程度の
加熱温度で間接加熱することで対処したり、或い
は、斯る高周波方式以外では複数本のチユーブを
加熱バーナーで加熱することで鍛造用処理物の間
接加熱処理を行なつている。[Detailed description of the invention] The present invention is applicable not only to ceramic tubes or new ceramic tubes mainly used in ceramic tube type forging furnaces, but also to forging furnaces such as castable tubes, which are molded products mainly made of alumina cement. This relates to tubes for use. Conventionally, so-called ceramic tube forging furnaces, which belong to the category of completely enclosed indirect heating furnaces, have a plurality of heating coils wound in a hollow cylindrical shape placed in parallel and supported in advance in the heating furnace. A cylindrical tube is gently inserted and supported within the heating coil, and a round bar, etc., which is a processed material for forging, is continuously fed into the tube with a pusher or the like,
This can be done by indirectly heating the material to be fed to a heating temperature of about 1200 to 1300℃ using high frequency waves, or for forging treatment by heating multiple tubes with a heating burner in a method other than the high frequency method. Performs indirect heat treatment of objects.
その為、斯る加熱処理作業が長時間に亘つて連
続的に、然も、高温での加熱や自然冷却が繰り返
され、また、プツシヤ等によつて鍛造用処理物で
ある丸棒等がチユーブ内を給送される等のことか
ら、必然的にチユーブ自体も１ケ月程度の使用に
よつてクラツクが入つたり、割れ易くなり、その
たび毎に作業を中断してチユーブの交換せねばな
らず、また、割れたチユーブの破片が加熱処理物
に付着し、これを見逃すとその後の鍛造製品を欠
陥品としたり、鍛造型を傷めてしまうことともな
り、また、チユーブ自体を１ケ月程度の消耗品と
するにはあまりにも高価である。逆に、チユーブ
を割れ難くする観点からは、チユーブそれ自体の
肉厚を厚くすることが考えられるが、それによる
エネルギー消費量の必要以上の増大も無視し得
ず、省エネルギーに沿ぐわないものである。そこ
で、本考案では、斯る前記諸点に有用に対処する
に、上下に２分割形成した上部筒と下部筒を合着
係合し、当該上部筒と下部筒をテープで巻装固定
し、上部筒の肉厚を下部筒の肉厚より薄肉に形成
し、下部筒の筒底部の両側位置にレール溝を凹設
し、当該レール溝にレールの下部を埋設固定して
なる鍛造炉用チユーブを提供せんとしたものであ
る。 For this reason, such heat treatment work is carried out continuously over a long period of time, with repeated heating at high temperatures and natural cooling. Due to the fact that the tube itself is fed inside, it is inevitable that the tube itself will crack or break easily after being used for about a month, and it is necessary to stop the work and replace the tube each time. Moreover, fragments of the broken tube adhere to the heated product, and if this is overlooked, subsequent forged products may be defective or the forging die may be damaged. It is too expensive to be considered a consumable item. On the other hand, from the perspective of making the tube more difficult to break, it may be possible to increase the wall thickness of the tube itself, but the unnecessarily increased energy consumption due to this cannot be ignored, and this is not in line with energy conservation. be. Therefore, in the present invention, in order to effectively deal with the above-mentioned points, the upper cylinder and the lower cylinder, which are formed into two halves, are joined and engaged, and the upper cylinder and the lower cylinder are wrapped and fixed with tape, and the upper cylinder is fixed with tape. A tube for a forging furnace is provided, in which the wall thickness of the tube is thinner than that of the lower tube, rail grooves are recessed at both sides of the bottom of the lower tube, and the lower portion of the rail is embedded and fixed in the rail grooves. This is what we intended to provide.
本考案に係る鍛造炉用チユーブＴは、長さが約
795mm程度、外径が約80mm程度、内径が約54mm程
度の中空筒状に形成されたセラミツクチユーブ又
はニユーセラミツクチユーブ或いはアルミナセメ
ント主体のキヤスタブルチユーブであつて、その
断面構造は第１図に示す如く上下に２分割形成し
た半筒状の下半部分の下部筒１と、同じく半筒状
の上半部分の上部筒２とからなり、此等の下部筒
１に上部筒２を上下に合着係合させた場合、此等
のチユーブＴ外径の軸芯O1から上方へ距離ｅ偏
心してチユーブＴ内径の軸芯O2が形成されたチ
ユーブ形状としている。具体的には、下部筒１の
筒底部の最大肉厚を約19mm程度とし、上部筒２の
天井部の最小肉厚を約７mm程度とし、上部筒２の
肉厚を下部筒１の肉厚に比して薄肉に形成してい
る。３は下部筒１の左右両端上縁の外周側に凹凸
形成した係合部、４は上部筒２の左右両端下縁の
内周側に凹凸形成した係合部であつて、此等の係
合部３，４を上下に合着係合させた上で、上部筒
２と下部筒１からなるチユーブＴの外周面に耐熱
性あるテープ５を捲回して貼着固定している。
６，７は下部筒１の筒底部の左右両側位置に間隔
を隔てて凹設したレール溝、８，９はステンレス
又はニユーセラミツク製で断面円形又は断面卵形
等とするレールであつて、その下半部を前記レー
ル溝６，７に埋設固定している。 The forging furnace tube T according to the present invention has a length of approximately
It is a ceramic tube, a new ceramic tube, or a castable tube mainly made of alumina cement, which is formed into a hollow cylindrical shape of about 795 mm, an outer diameter of about 80 mm, and an inner diameter of about 54 mm, and its cross-sectional structure is shown in Figure 1. It consists of a lower cylinder 1 which is a lower half part of a semi-cylindrical shape and an upper cylinder 2 which is an upper half part of a semi-cylindrical shape which are formed into two parts vertically. When engaged, the tube shape is such that the axis O 2 of the inner diameter of the tube T is eccentric upwardly by a distance e from the axis O 1 of the outer diameter of the tube T. Specifically, the maximum thickness of the bottom of the lower cylinder 1 is approximately 19 mm, the minimum thickness of the ceiling of the upper cylinder 2 is approximately 7 mm, and the thickness of the upper cylinder 2 is equal to the thickness of the lower cylinder 1. It is formed thinner than the Reference numeral 3 denotes an engaging portion formed with unevenness on the outer circumferential side of the upper edge of both the left and right ends of the lower cylinder 1, and numeral 4 denotes an engaging portion formed with unevenness formed on the inner circumferential side of the lower edge of both the left and right ends of the upper cylinder 2. After the joining parts 3 and 4 are brought into vertical engagement, a heat-resistant tape 5 is wound and fixed on the outer peripheral surface of the tube T consisting of the upper cylinder 2 and the lower cylinder 1.
Reference numerals 6 and 7 are rail grooves formed at intervals on both left and right sides of the bottom of the lower cylinder 1; 8 and 9 are rails made of stainless steel or new ceramic and having a circular or oval cross section; The lower half portion is embedded and fixed in the rail grooves 6 and 7.
而して、上下に２分割形成された上部筒２と下
部筒１を合着係合させ、その外周面にテープ５を
巻装固定したチユーブＴを、加熱炉（図示せず）
の加熱コイル１０内に貫挿させてチユーブＴの先
後両端部を適宜支持し、当該チユーブＴ内のレー
ル８，９に乗架支持させた鍛造用処理物である丸
棒Ｘ等を、プツシヤ等で連結的に給送すべくな
し、当該丸棒Ｘ等を高周波によつて1200〜1300℃
程度の加熱温度で間接加熱せしめる。 Then, the upper tube 2 and the lower tube 1, which are formed into two halves, are brought together and engaged, and the tube T, in which the tape 5 is wrapped and fixed on the outer circumferential surface, is placed in a heating furnace (not shown).
A round bar X, etc., which is a processed material for forging, is inserted through the heating coil 10 of the tube T to appropriately support both the front and rear ends of the tube T, and is mounted and supported on the rails 8 and 9 in the tube T, using a pusher or the like. The round bar X, etc. should be fed in a connected manner at 1200 to 1300℃ by high frequency.
Heat indirectly at a heating temperature of
本考案に係るチユーブＴは、前記の如き条件下
での使用に供されるものであるが、当該チユーブ
構造を従前類例をみない特異な断面構造のもの、
具体的には、上下に２分割形成した上部筒と下部
筒を合着係合し、当該上部筒と下部筒をテープで
巻装固定し、上部筒の肉厚を下部筒の肉厚より薄
肉に形成し、下部筒の筒底部の両側位置にレール
溝を凹設し、当該レール溝にレールの下部を埋設
固定してなる鍛造炉用チユーブとしたので、従前
の肉厚が同一の一体成型品であるチユーブに比し
て、同一条件での耐久性の向上に顕著な効果が得
られた。具体的には、チユーブ自体が上下に２分
割形成された上部筒と下部筒とからなり、然も、
上部筒の肉厚を下部筒の肉厚に比して薄肉なもの
としている為に、前記の如き苛酷な条件下での長
時間、長期間に亘る使用によつて生じるクラツク
が上部筒に形成され易く、それ故、テープを剥離
して上部筒を交換し、これと下部筒を合着するこ
とでの再利用できることとなり、トータルして従
前のチユーブの場合に比して３倍以上長持ちし、
耐久性の向上に極めて優れる等の諸効果をもたら
す。 The tube T according to the present invention is used under the conditions described above, and the tube T has a unique cross-sectional structure that has never been seen before.
Specifically, the upper and lower cylinders, which are formed into two halves, are joined and engaged, the upper and lower cylinders are wrapped and fixed with tape, and the wall thickness of the upper cylinder is thinner than that of the lower cylinder. This tube for forging furnaces is made by forming rail grooves on both sides of the bottom of the lower tube, and embedding and fixing the lower part of the rail in the rail grooves. Compared to standard tubes, the durability was significantly improved under the same conditions. Specifically, the tube itself consists of an upper tube and a lower tube that are divided into upper and lower halves.
Since the wall thickness of the upper cylinder is thinner than that of the lower cylinder, cracks may form on the upper cylinder due to long-term use under harsh conditions such as those mentioned above. Therefore, it can be reused by peeling off the tape, replacing the upper tube, and joining it with the lower tube.In total, it lasts more than three times as long as the previous tube. ,
It brings about various effects such as extremely improved durability.
第１図は、本考案に係るチユーブの断面構造を
示す図である。
符号表、Ｔ……チユーブ、Ｘ……鍛造用処理
物、１……下部筒、２……上部筒、３，４……係
合部、５……テープ、６，７……レール、８，９
……レール、１０……加熱コイル。
FIG. 1 is a diagram showing a cross-sectional structure of a tube according to the present invention. Code list, T...Tube, X...Processed material for forging, 1...Lower tube, 2...Upper tube, 3, 4...Engaging portion, 5...Tape, 6, 7...Rail, 8 ,9
...Rail, 10...Heating coil.
Claims (1)
着係合し、当該上部筒２と下部筒１をテープ５で
巻装固定し、上部筒２の肉厚を下部筒１の肉厚よ
り薄肉に形成し、下部筒１の筒底部の両側位置に
レール溝６，７を凹設し、当該レール溝６，７に
レール８，９の下部を埋設固定したことを特徴と
する鍛造炉用チユーブ。 The upper cylinder 2 and the lower cylinder 1, which are formed into two halves, are joined and engaged, and the upper cylinder 2 and the lower cylinder 1 are wrapped and fixed with tape 5, and the thickness of the upper cylinder 2 is set to the thickness of the lower cylinder 1. A forging furnace characterized in that the lower cylinder 1 has a thinner wall and has rail grooves 6 and 7 recessed at both sides of the bottom of the cylinder, and the lower parts of the rails 8 and 9 are embedded and fixed in the rail grooves 6 and 7. Tube for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984106899U JPS6121295U (en) | 1984-07-14 | 1984-07-14 | Tube for forging furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984106899U JPS6121295U (en) | 1984-07-14 | 1984-07-14 | Tube for forging furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6121295U JPS6121295U (en) | 1986-02-07 |
| JPH024120Y2 true JPH024120Y2 (en) | 1990-01-31 |
Family
ID=30666173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984106899U Granted JPS6121295U (en) | 1984-07-14 | 1984-07-14 | Tube for forging furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121295U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100997648B1 (en) | 2008-01-15 | 2010-12-03 | 김익환 | Guide Rail for Heating Furnace |
-
1984
- 1984-07-14 JP JP1984106899U patent/JPS6121295U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6121295U (en) | 1986-02-07 |
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