JPH0349971B2 - - Google Patents
Info
- Publication number
- JPH0349971B2 JPH0349971B2 JP58240395A JP24039583A JPH0349971B2 JP H0349971 B2 JPH0349971 B2 JP H0349971B2 JP 58240395 A JP58240395 A JP 58240395A JP 24039583 A JP24039583 A JP 24039583A JP H0349971 B2 JPH0349971 B2 JP H0349971B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- cylindrical container
- heating
- diameter portion
- diameter
- 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 - Lifetime
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
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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)
- Tunnel Furnaces (AREA)
Description
【発明の詳細な説明】
本発明は、円形の大径異径部を有する処理材の
連続加熱方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for continuously heating a treated material having a circular large-diameter portion and a different-diameter portion.
従来、両端部に円形の大径ボス部を有する車軸
を連続加熱する場合、異径部の存在により、処理
材を普通の搬送手段で炉内搬送できないこと、あ
るいは、搬送できたとしても搬送中に処理材が加
熱変形する等の理由によつて、一般に、オーバヘ
ツド型炉で連続加熱するようにしていた。 Conventionally, when continuously heating an axle that has circular large-diameter bosses at both ends, the presence of the different-diameter parts makes it impossible to transport the processed material through the furnace using normal transport means, or even if it can be transported, it is difficult to transport the material during transport. Generally, continuous heating is carried out in an overhead furnace because the treated material is deformed by heating.
ところで、このオーバヘツド型炉は、天井部に
設けた炉長方向の貫通開口を介して炉内移動する
ハンガーを設け、処理材を前記ハンガーに吊持し
て炉内移動させることにより加熱するものであ
る。 By the way, this overhead type furnace is equipped with a hanger that moves inside the furnace through a through opening in the furnace length direction provided in the ceiling, and heats the material by suspending it from the hanger and moving it inside the furnace. be.
したがつて、前記開口の存在により熱損失が大
であるばかりか、炉底部と炉天井部との温度差に
より処理材を均一に加熱することが困難であると
いう欠点を有していた。 Therefore, the existence of the openings not only causes a large heat loss, but also has the disadvantage that it is difficult to uniformly heat the treated material due to the temperature difference between the furnace bottom and the furnace ceiling.
本発明は前記従来方法の欠点を除去するために
なされたもので、処理材を円周壁に開口を有する
円筒容器内に収納し、この容器を炉内搬送手段で
回転させて搬送することにより、すなわち、オー
バヘツド型炉を使用することなく、処理材を円周
壁に開口を有する円筒容器を介して加熱すること
により、容器自体の歪みや容器による熱容量の増
加を軽減するとともに対流加熱を与え、しかも、
熱損失を少なくして処理材を均一加熱することの
できる円形の大径異径部を有する処理材の連続加
熱方法を提供しようとするものである。 The present invention has been made in order to eliminate the drawbacks of the conventional method, and the processing material is stored in a cylindrical container having an opening in the circumferential wall, and this container is rotated and transported by an in-furnace transport means. That is, by heating the treated material through a cylindrical container with an opening in the circumferential wall without using an overhead furnace, distortion of the container itself and increase in heat capacity due to the container can be reduced, and convection heating can be provided. ,
It is an object of the present invention to provide a continuous heating method for a processing material having a circular large-diameter portion that can uniformly heat the processing material with reduced heat loss.
つぎに、本発明を一実施例である図面にしたが
つて説明する。 Next, the present invention will be explained with reference to the drawings which are one embodiment.
図において、１は本発明方法を実施するバレル
炉を示し、この炉には上部バーナ２と下部バーナ
３とが千鳥状に配置されるとともに、鼓状搬送ロ
ーラ４が所定のスキユー角をもつて配設された構
造となつている。 In the figure, reference numeral 1 indicates a barrel furnace for carrying out the method of the present invention, in which an upper burner 2 and a lower burner 3 are arranged in a staggered manner, and a drum-shaped conveying roller 4 is arranged at a predetermined skew angle. It has a well-arranged structure.
そして、たとえば、両端部に大径部６を備えた
300φの車軸５を前記炉１で加熱するには、この
車軸５を10mm厚の耐熱鋼製からなる円周壁に開口
７ａを有する円筒容器７内に収納し、この円筒容
器７を搬送ローラ４の回転により炉内搬送すると
ともに、上、下部バーナ２，３で加熱するもので
ある。 For example, a large diameter portion 6 is provided at both ends.
To heat a 300φ axle 5 in the furnace 1, the axle 5 is housed in a cylindrical container 7 made of heat-resistant steel with a thickness of 10 mm and has an opening 7a in its circumferential wall. It is transported through the furnace by rotation and heated by upper and lower burners 2 and 3.
この場合、円筒容器７は搬送ローラ４の回転に
つれてａ方向に回転する。一方、前記円筒容器７
内の車軸５もａ方向に回転するが、径の相違によ
り車軸５は円筒容器７の回転よりも大なる回転数
で回転するとともに、円筒容器７を介して加熱さ
れるため、車軸５は加熱曲りを防止されつつ均一
加熱することになる。 In this case, the cylindrical container 7 rotates in the a direction as the conveyance roller 4 rotates. On the other hand, the cylindrical container 7
The inner axle 5 also rotates in the direction a, but due to the difference in diameter, the axle 5 rotates at a higher rotation speed than the rotation of the cylindrical container 7, and is heated via the cylindrical container 7, so the axle 5 is heated. This results in uniform heating while preventing bending.
また、図に示すように、バーナ２，３を配置す
れば、燃焼ガスの旋回流は円筒容器７の回転方向
とは反対に旋回するため対流熱伝達が向上し、熱
効率よく車軸５を加熱することができる。 Furthermore, if the burners 2 and 3 are arranged as shown in the figure, the swirling flow of combustion gas will swirl in the opposite direction to the rotation direction of the cylindrical container 7, improving convective heat transfer and heating the axle 5 with thermal efficiency. be able to.
なお、前記実施例においては、加熱炉をバレル
型とし、バーナからの燃焼ガス流を旋回流とした
がこれに限ることなく、また、炉内搬送手段も鼓
状搬送ローラに限るものでない。すなわち、加熱
炉をウオーキングビーム炉あるいはウオーキング
ハース炉とし、炉床を波形状とし、円筒容器の受
渡し工程において円筒容器を回転させたり、傾斜
レール炉において、搬送中に円筒容器を回転させ
るようにしてもよいものである。なお、円筒容器
の材質および肉厚は、処理材の加熱温度や容器内
に収納する処理材重量により決めるものである。 In the above embodiment, the heating furnace is barrel-shaped and the combustion gas flow from the burner is a swirling flow, but the present invention is not limited to this, and the in-furnace conveyance means is not limited to the drum-shaped conveyance roller. That is, the heating furnace is a walking beam furnace or a walking hearth furnace, the hearth is made into a corrugated shape, and the cylindrical container is rotated during the delivery process of the cylindrical container, or the cylindrical container is rotated during transportation in an inclined rail furnace. It's also good. Note that the material and wall thickness of the cylindrical container are determined by the heating temperature of the processing material and the weight of the processing material stored in the container.
以上の説明で明らかなように、本発明方法によ
れば、処理材を円周壁に開口を有する円筒容器内
に収納し、炉内搬送手段で円筒容器と処理材とを
回転させて搬送しながら加熱するものであつて、
炉天井部に開口等を設けないため、熱損失は少な
い。また、円筒容器は勿論のこと処理材も回転す
るため、処理材を加熱曲りを生じさせることな
く、均一加熱することができ、前記従来の欠点を
除去することができる。 As is clear from the above explanation, according to the method of the present invention, the material to be treated is stored in a cylindrical container having an opening in the circumferential wall, and the cylindrical container and the material to be treated are rotated and transported by the in-furnace conveying means. Something that heats,
Heat loss is low because there are no openings in the furnace ceiling. Furthermore, since not only the cylindrical container but also the processing material is rotated, the processing material can be uniformly heated without being bent by heating, and the above-mentioned drawbacks of the conventional method can be eliminated.
第１図は本発明を適用したバレル炉の断面図、
第２図は第１図の−線断面図で、第３図は円
筒容器の断面図である。
１……炉、２，３……バーナ、４……搬送ロー
ラ、５……処理材、７……円筒容器、７ａ……開
口。
FIG. 1 is a sectional view of a barrel furnace to which the present invention is applied;
2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a sectional view of the cylindrical container. 1... Furnace, 2, 3... Burner, 4... Conveyance roller, 5... Processing material, 7... Cylindrical container, 7a... Opening.
Claims (1)
開口を有する円筒容器内に収納し、炉内搬送手段
により前記容器に円周方向の回転を与えながら、
前記処理材を加熱することを特徴とする円形の大
径異径部を有する処理材の連続加熱方法。 ２ 前記炉内搬送手段が、所定スキユー角度をも
つて配設された多数の鼓状搬送ローラであること
を特徴とする前記特許請求の範囲第１項に記載の
円形の大径異径部を有する処理材の連続加熱方
法。[Scope of Claims] 1. A processing material having a circular large-diameter and different-diameter portion is stored in a cylindrical container having an opening in the circumferential wall, and while the container is rotated in the circumferential direction by an in-furnace conveying means,
A continuous heating method for a treated material having a circular large diameter and different diameter portion, the method comprising heating the treated material. 2. The circular large diameter different diameter portion according to claim 1, wherein the in-furnace conveyance means is a large number of drum-shaped conveyance rollers arranged at a predetermined skew angle. Continuous heating method for treated materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24039583A JPS60131920A (en) | 1983-12-19 | 1983-12-19 | Continuous heating method of material to be treated having circular and large different diameter part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24039583A JPS60131920A (en) | 1983-12-19 | 1983-12-19 | Continuous heating method of material to be treated having circular and large different diameter part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60131920A JPS60131920A (en) | 1985-07-13 |
| JPH0349971B2 true JPH0349971B2 (en) | 1991-07-31 |
Family
ID=17058838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24039583A Granted JPS60131920A (en) | 1983-12-19 | 1983-12-19 | Continuous heating method of material to be treated having circular and large different diameter part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60131920A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705700B1 (en) * | 2005-12-23 | 2007-04-09 | 주식회사 포스코 | Rotary roller device for coil heat treatment |
| KR102372683B1 (en) * | 2021-06-14 | 2022-03-10 | (주)현대보테코 | Rolling type heat treatment apparatus for injection machine and extruder screw to prevent bending deformation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115208A (en) * | 1975-04-03 | 1976-10-09 | Chugai Ro Kogyo Kaisha Ltd | Lumber-carried equipment in furnace |
-
1983
- 1983-12-19 JP JP24039583A patent/JPS60131920A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60131920A (en) | 1985-07-13 |
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