JPH0536483B2 - - Google Patents
Info
- Publication number
- JPH0536483B2 JPH0536483B2 JP59193108A JP19310884A JPH0536483B2 JP H0536483 B2 JPH0536483 B2 JP H0536483B2 JP 59193108 A JP59193108 A JP 59193108A JP 19310884 A JP19310884 A JP 19310884A JP H0536483 B2 JPH0536483 B2 JP H0536483B2
- Authority
- JP
- Japan
- Prior art keywords
- billet
- cylindrical body
- heat
- resistant
- section
- 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
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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)
- Resistance Heating (AREA)
- General Induction Heating (AREA)
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
この発明はビレツトを移送しながら誘導加熱コ
イルの内側に配設した筒状体内で誘導加熱するビ
レツトヒータにおいて、内面でビレツトを支承す
る前記筒状体の耐ヒートシヨツク強度を増すこと
ができるようにしたものに関する。Detailed Description of the Invention [Technical Field to which the Invention Pertains] The present invention relates to a billet heater that heats a billet by induction in a cylindrical body disposed inside an induction heating coil while transferring the billet. This invention relates to something that can increase the heat shock resistance of the body.
ビレツトヒータの従来例を第６図および第７図
にもとづいて説明する。これらの図において、環
状の耐熱絶縁物１の外周に巻装した誘導加熱コイ
ル２が外周部を不定形耐火セメント等からなる耐
火物３で包み込まれ、内側には環状の耐熱スペー
サ４を介して不定形耐火材からなる筒状体５が挿
入されている。この筒状体５は内周が六角形断面
をなし、内周の隣接する２面でビレツト６を支承
するようになつている。このビレツト６は筒状体
５の内面を軸方向に滑つて移送され、筒状体５内
で前記コイル２の電磁誘導作用により加熱して高
温となる。この高温ビレツト６からのふく射熱で
筒状体５も全体がビレツト６とほぼ同じ温度まで
昇温し、これによりビレツト６の滑動面での部分
的冷却およびこれに伴う温度分布むらの発生を防
止するようになつている。（公開実用新案実開昭
58・165886誘導加熱装置参照）
このような構造では常温ビレツト６の搬入およ
び高温ビレツト６の搬出に伴うヒートシヨツクで
筒状体５にクラツクの発生することがあり、クラ
ツクの発生した筒状体５はその都度取替える必要
があるという欠点があつた。
A conventional example of a billet heater will be explained based on FIGS. 6 and 7. In these figures, an induction heating coil 2 is wound around the outer periphery of an annular heat-resistant insulator 1, the outer periphery of which is wrapped in a refractory 3 made of amorphous refractory cement, etc., and an annular heat-resistant spacer 4 is placed inside. A cylindrical body 5 made of amorphous refractory material is inserted. The cylindrical body 5 has a hexagonal inner periphery and supports a billet 6 on two adjacent surfaces of the inner periphery. This billet 6 is transferred by sliding along the inner surface of the cylindrical body 5 in the axial direction, and is heated within the cylindrical body 5 by the electromagnetic induction action of the coil 2 to reach a high temperature. The radiated heat from this high-temperature billet 6 raises the temperature of the entire cylindrical body 5 to almost the same temperature as the billet 6, thereby preventing partial cooling of the sliding surface of the billet 6 and the occurrence of uneven temperature distribution due to this. It's becoming like that. (Public utility model practical application
58・165886 Induction Heating Apparatus) In such a structure, cracks may occur in the cylindrical body 5 due to the heat shock caused by the loading of the room temperature billet 6 and the unloading of the high temperature billet 6, and the cracked cylindrical body 5 may The disadvantage was that it had to be replaced each time.
この発明は前記の欠点を除去するために、内面
でビレツトを支承して移送する筒状体の耐ヒート
シヨツク強度を増すことができるようにしたビレ
ツトヒータを提供することを目的とする。
SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a billet heater that can increase the heat shock resistance of a cylindrical body that supports and transfers billets on its inner surface.
このような目的は、この発明によれば、
ビレツトを移送しながら誘導加熱コイルの内側
に配設した多角形断面の筒状体内で誘導加熱する
ビレツトヒータにおいて、
前記多角形断面の筒状体は、複数個の耐熱性・
耐摩耗性板材を多角形断面の筒状に組み合わせそ
の外周を耐熱性結束部材で結束して構成する、
ことによつて達成される。
According to the present invention, such an object is achieved in a billet heater that inductively heats a billet in a cylindrical body with a polygonal cross section disposed inside an induction heating coil while transferring the billet, wherein the cylindrical body with a polygonal cross section: Multiple heat resistant
This is achieved by assembling wear-resistant plates into a cylindrical shape with a polygonal cross section and binding the outer periphery with a heat-resistant binding member.
第１図はこの発明の実施例を示すもので、耐熱
性と耐摩耗性を有する複数の板状耐火物１１が六
角形断面の筒状に組み合わされ、その外周を耐熱
性を有する不定形耐火セメント等の結束部材１２
で円く包み込んで筒状体１５が一体形成されてい
る。隣接する前記耐火物１１の間には三角形断面
の棒状スペーサ１３が耐熱接着剤で接着して介挿
されている。このスペーサ１３および耐火物１１
はセラミツク系の焼成成形材を焼き固めて形成さ
れる。前記スペーサ１３は第２図および第３図に
示すように板状耐火物２１を台形断面にすれば省
略することができる。前記筒状体１５は六角形以
外の他角形断面とすることもできる。
FIG. 1 shows an embodiment of the present invention, in which a plurality of plate-shaped refractories 11 having heat resistance and abrasion resistance are combined into a cylindrical shape with a hexagonal cross section, and the outer periphery of the plate refractory material 11 is a monolithic refractory having heat resistance. Binding member 12 such as cement
A cylindrical body 15 is integrally formed by enclosing it in a circle. A rod-shaped spacer 13 having a triangular cross section is inserted between the adjacent refractories 11 and bonded with a heat-resistant adhesive. This spacer 13 and refractory 11
is formed by baking and hardening ceramic-based fired molded material. The spacer 13 can be omitted if the plate-shaped refractory 21 is made to have a trapezoidal cross section as shown in FIGS. 2 and 3. The cylindrical body 15 can also have a cross section other than hexagonal.
前記実施例によれば筒状体１５はヒートシヨツ
クを耐火物１１の外周接合部で逃がしてクラツク
の発生を防止することができ、またビレツト６の
移送により内面が摩耗しても異なる二面でビレツ
ト６を支承するように円周方向の位置を変えて寿
命を伸ばすことができる。 According to the embodiment described above, the cylindrical body 15 can prevent the occurrence of cracks by letting the heat shock escape at the outer peripheral joint of the refractory 11, and even if the inner surface is worn out due to the transfer of the billet 6, it can be prevented from occurring on two different surfaces. The service life can be extended by changing the circumferential position to support the billet 6.
他の実施例を示す第４図および第５図において
は、多角形断面の筒状体４５，５５が外周に耐熱
セラミツクフアイーバー等の結束部材４２を巻き
つけて結束することにより一体形成され、結束強
度は接着剤がはがれても問題ないようになつてい
る。 In FIGS. 4 and 5 showing other embodiments, cylindrical bodies 45, 55 having polygonal cross sections are integrally formed by wrapping a binding member 42 such as a heat-resistant ceramic fiber around the outer periphery and binding. The binding strength is such that there is no problem even if the adhesive peels off.
この実施例によれば筒状体４５，５５を種々の
多角形に容易に成形することができかつ型費も安
価となる。 According to this embodiment, the cylindrical bodies 45, 55 can be easily molded into various polygonal shapes, and the mold cost is also low.
この発明によればビレツトヒータにおいて、複
数の板状耐熱耐摩耗耐火物を多角形断面の筒状に
組み合わせ、その外周を耐熱結束部材で結束して
筒状体を形成し、この筒状体の内面で加熱ビレツ
トと支承して移送するようにしたので、筒状体の
耐ヒートシヨツク強度を増してクラツクの発生を
防止し、また内面が摩耗しても支承面を変えて寿
命を延ばすことができるという効果が得られる。
According to this invention, in a billet heater, a plurality of plate-shaped heat-resistant and wear-resistant refractories are combined into a cylindrical shape with a polygonal cross section, the outer periphery of which is bound with a heat-resistant binding member to form a cylindrical body, and the inner surface of this cylindrical body is Since it is supported on the heating billet and transported, the heat shock resistance of the cylindrical body is increased, preventing cracks from occurring, and even if the inner surface wears out, the bearing surface can be changed to extend its life. This effect can be obtained.
第１図はこの発明の実施例の要部縦断面図、第
２図はこの発明の他の実施例の要部斜視図、第３
図ないし第５図はそれぞれこの発明の他の実施例
の要部縦断面図、第６図は従来例の要部縦断面
図、第７図は第６図の−線に沿う縦断面図で
ある。
２……コイル、６……ビレツト、１１，２１…
…耐火物、１２，４２……結束部材、１５，４
５，５５……筒状体。
FIG. 1 is a longitudinal cross-sectional view of a main part of an embodiment of the invention, FIG. 2 is a perspective view of a main part of another embodiment of the invention, and FIG.
5 to 5 are longitudinal cross-sectional views of main parts of other embodiments of the present invention, FIG. 6 is a longitudinal cross-sectional view of main parts of a conventional example, and FIG. 7 is a longitudinal cross-sectional view of main parts of a conventional example. be. 2... Coil, 6... Billet, 11, 21...
...Refractory, 12,42...Binding member, 15,4
5,55...Cylindrical body.
Claims (1)
側に配設した多角形断面の筒状体内で誘導加熱す
るビレツトヒータにおいて、 前記多角形断面の筒状体は、複数個の耐熱性・
耐摩耗性板材を多角形断面の筒状に組み合わせそ
の外周を耐熱性結束材で結束して構成した、 ことを特徴とするビレツトヒータ。[Scope of Claims] 1. A billet heater that inductively heats a billet in a cylindrical body with a polygonal cross section disposed inside an induction heating coil while transferring the billet, wherein the cylindrical body with a polygonal cross section has a plurality of heat-resistant・
A billet heater characterized in that it is constructed by combining wear-resistant plate materials into a cylindrical shape with a polygonal cross section and binding the outer periphery with a heat-resistant binding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19310884A JPS6169925A (en) | 1984-09-14 | 1984-09-14 | Billet heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19310884A JPS6169925A (en) | 1984-09-14 | 1984-09-14 | Billet heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6169925A JPS6169925A (en) | 1986-04-10 |
| JPH0536483B2 true JPH0536483B2 (en) | 1993-05-31 |
Family
ID=16302376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19310884A Granted JPS6169925A (en) | 1984-09-14 | 1984-09-14 | Billet heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6169925A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007791A (en) * | 2006-06-27 | 2008-01-17 | Sanyo Special Steel Co Ltd | Heating furnace for hot extrusion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS579825A (en) * | 1980-06-21 | 1982-01-19 | Toyota Central Res & Dev Lab Inc | Heating furnace having skid rail |
-
1984
- 1984-09-14 JP JP19310884A patent/JPS6169925A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6169925A (en) | 1986-04-10 |
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