JPH0633952B2 - High temperature heating furnace - Google Patents
High temperature heating furnaceInfo
- Publication number
- JPH0633952B2 JPH0633952B2 JP31370986A JP31370986A JPH0633952B2 JP H0633952 B2 JPH0633952 B2 JP H0633952B2 JP 31370986 A JP31370986 A JP 31370986A JP 31370986 A JP31370986 A JP 31370986A JP H0633952 B2 JPH0633952 B2 JP H0633952B2
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating material
- temperature heating
- heating furnace
- high temperature
- 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
- 238000010438 heat treatment Methods 0.000 title claims description 47
- 239000011810 insulating material Substances 0.000 claims description 42
- 239000002344 surface layer Substances 0.000 claims description 23
- 239000006260 foam Substances 0.000 claims description 22
- 238000003763 carbonization Methods 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 229920001187 thermosetting polymer Polymers 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000002657 fibrous material Substances 0.000 claims description 10
- 239000007833 carbon precursor Substances 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 229910002804 graphite Inorganic materials 0.000 description 11
- 239000010439 graphite Substances 0.000 description 11
- 239000005011 phenolic resin Substances 0.000 description 9
- 230000006698 induction Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 239000007849 furan resin Substances 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 206010040844 Skin exfoliation Diseases 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005087 graphitization Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 229910021397 glassy carbon Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、断熱材ブロックにより構成された保温構造を
有する高温加熱炉に関するものである。TECHNICAL FIELD The present invention relates to a high-temperature heating furnace having a heat retaining structure composed of a heat insulating material block.
従来、高温加熱炉の加熱部周囲に使用される断熱材とし
ては、カーボンファイバーの成形体表面に黒鉛シート等
を貼り合わせたものが大部分であった。Conventionally, most of the heat insulating materials used around the heating part of a high-temperature heating furnace have a graphite sheet or the like bonded to the surface of a carbon fiber molded body.
しかしながら、カーボンファイバーの成形体表面に黒鉛
シート等を貼り合わせた断熱材では、成形体とシートと
の密着性が弱く、早期に剥れ落ちたり、黒鉛シート自身
が柔かくもろいため、振動やガス流によって消耗する割
合が大きいという欠点を有していた。However, with a heat insulating material in which a graphite sheet or the like is attached to the surface of a carbon fiber molded body, the adhesion between the molded body and the sheet is weak, and the graphite sheet itself is soft and fragile because of its early peeling off, and vibration and gas flow. It has a drawback that the rate of consumption is large.
また、黒鉛シート自身の強度が弱く、成形体上への黒鉛
シートの貼り合わせの作業が手間取るという欠点も有し
ていた。In addition, the strength of the graphite sheet itself is weak, and the work of bonding the graphite sheet onto the molded body is troublesome.
本発明は以上のような実状に鑑みてなされたもので、そ
の解決しようとする問題点は、従来の高温加熱炉の加熱
部周囲に使用される黒鉛シート等を貼り合わせた断熱材
の強度及び耐久性の欠如である。The present invention has been made in view of the above circumstances, the problem to be solved, strength of the heat insulating material pasted graphite sheet or the like used around the heating portion of the conventional high temperature heating furnace and It lacks durability.
そして、本発明は、これら従来の欠点に鑑み、従来技術
の欠点を除去・解決することを目的としてなされたもの
であり、断熱材ブロックにより構成された優れた保温構
造を有する高温加熱炉を提供するものである。Then, in view of these conventional drawbacks, the present invention has been made for the purpose of eliminating and solving the drawbacks of the prior art, and provides a high-temperature heating furnace having an excellent heat insulating structure composed of a heat insulating material block. To do.
つまり、本発明は、炭素化又は黒鉛化されて成る不浸透
性を有する発泡体のブロックを使用したことを特徴とす
る高温加熱炉を提供しようとするものであり、更に詳し
くは、発泡体内部と同質の強固で緻密な不浸透性の被膜
を有し、かつ表層が強固で緻密であるがため、表層から
炭素粉などのパーティクルの発生を防止し得る特徴を有
する断熱材ブロックの集合等により構成された保温構造
を有することを特徴とする高温加熱炉を提供するもので
ある。That is, the present invention is to provide a high-temperature heating furnace characterized by using a block of an impervious foam formed by carbonization or graphitization, and more specifically, inside the foam. It has a strong and dense impermeable coating of the same quality as the above, and because the surface layer is strong and dense, it is possible to prevent the generation of particles such as carbon powder from the surface layer by a set of heat insulating material blocks etc. The present invention provides a high temperature heating furnace having a heat retaining structure configured.
以上の問題点を解決するために、本発明の採った手段
は、 「断熱材ブロックにより構成された保温構造を有する高
温加熱炉において、 前記断熱材ブロックは、内部と表層部とが一体化され
て、炭素化又は黒鉛化されたものであって、 前記断熱材ブロックの内部を構成するものとして、炭素
化収率が20重量％以上の熱硬化性樹脂の発泡体を採用す
るとともに、 前記断熱材ブロックの表面を構成する表層部として、前
記発泡体を構成する熱硬化性樹脂と同質の炭素化収縮性
を有する繊維状物からなる炭素前駆体の被膜を採用した
ことを特徴とする高温加熱炉」 である。In order to solve the above problems, the means adopted by the present invention is, “In a high-temperature heating furnace having a heat retaining structure composed of a heat insulating material block, the heat insulating material block has an inner part and a surface layer part integrated with each other. A carbonized or graphitized material that constitutes the inside of the heat insulating material block, and employs a thermosetting resin foam having a carbonization yield of 20% by weight or more, and As a surface layer constituting the surface of the material block, high temperature heating characterized by adopting a coating of a carbon precursor made of a fibrous material having the same carbonization shrinkability as the thermosetting resin constituting the foam Furnace.
すなわち、本発明に係る高温加熱炉は、高温加熱炉の断
熱材に炭素化収率が20重量％以上のフェノール樹脂、フ
ラン樹脂等の熱硬化性樹脂を用いて発泡成形体をつく
り、その表層部にもこれらの樹脂と同質の炭素化収縮性
を有する繊維状物からなる炭素前駆体の被膜を形成し、
これら表面部と内部の発泡成形体とを一体成形し、さら
にこれらを炭素化ないしは黒鉛化されて成る断熱材ブロ
ックを用いることによって構成されるものであり、従来
技術における表面部の不浸透性黒鉛シートの貼り合わせ
という作業の煩雑さが除去され、かつ剥れ落ち及び密着
性が悪い問題が解善され、かつ表層が強固で緻密な不浸
透性の被膜を有し、パーティクルの発生を防止し、なお
かつ部分的な修理が可能である断熱材ブロックの集合に
より構成された保温構造を有して成るものである。That is, the high-temperature heating furnace according to the present invention is a foamed molded body using a thermosetting resin such as phenol resin or furan resin having a carbonization yield of 20% by weight or more as a heat insulating material of the high-temperature heating furnace, and its surface layer. A carbon precursor film made of a fibrous material having the same carbonization shrinkage as these resins is formed in the part,
It is constructed by integrally molding the surface portion and the foamed body inside, and using a heat insulating material block obtained by carbonizing or graphitizing these, and the impermeable graphite of the surface portion in the prior art. The complexity of the work of sticking the sheets is eliminated, the problems of peeling and poor adhesion are solved, and the surface layer has a strong and dense impermeable coating, which prevents the generation of particles. In addition, the heat insulating structure is constituted by a set of heat insulating material blocks that can be partially repaired.
ここで、炭素前駆体とは、焼成することにより炭素化な
いしは黒鉛化される物質の全てを言うものであり、ここ
でいう被膜となるべき炭素前駆体は、炭素化収率が20重
量％以上のフェノール樹脂、フラン樹脂等の熱硬化性樹
脂と同質の炭素化収縮性を有する繊維状物からなるもの
であり、例えばフェノール樹脂繊維、フラン樹脂繊維等
が挙げられる。Here, the carbon precursor refers to all substances that are carbonized or graphitized by firing, and the carbon precursor to be the coating here has a carbonization yield of 20% by weight or more. Of a fibrous material having the same carbonization shrinkage as that of a thermosetting resin such as a phenol resin or a furan resin, and examples thereof include a phenol resin fiber and a furan resin fiber.
換言すれば、本発明の高温加熱炉に用いられる断熱材ブ
ロックの内部を構成する熱硬化性樹脂は、フェノール樹
脂又はフラン樹脂等の炭素化率が20重量％以上の熱硬化
性樹脂でつくられており、また難黒鉛化性の炭素前駆体
からなるため、焼成によりこの成形体にはクローズドポ
アと呼ばれるミクロな独立気泡体の集合が形成され優れ
た断熱性をもたらす。すなわち、「断熱材は黒鉛化によ
り熱伝導率が大きくなってしまう」という問題が顕著に
改善されるのである。加えて、本発明の断熱材ブロック
は軽量であることから断熱材として特性上好都合であ
る。In other words, the thermosetting resin forming the inside of the heat insulating material block used in the high temperature heating furnace of the present invention is made of a thermosetting resin having a carbonization rate of 20% by weight or more, such as phenol resin or furan resin. In addition, since it is composed of a non-graphitizable carbon precursor, an aggregate of microscopic closed cells called closed pores is formed in this molded body by firing, resulting in excellent heat insulation. That is, the problem that "the heat insulating material has a high thermal conductivity due to graphitization" is remarkably improved. In addition, since the heat insulating material block of the present invention is lightweight, it is advantageous in terms of characteristics as a heat insulating material.
また、本発明の高温加熱炉に用いられる断熱材ブロック
の表層部は、内部の発泡体を構成する熱硬化性樹脂と同
質の炭素化収縮性を有する繊維状物から成る炭素前駆体
の被膜を形成するものであるから、内部の発泡体の補強
硬化を図るものとなっている。これと共に、表層部を構
成する繊維状物は、その種類や複合形態を変化させ、ま
た適宜に選択することにより、炭素化に伴う収縮を自由
に制御し得るものであり、炭素化された繊維状物によっ
て、発泡体を炭素化又は黒鉛化したものの表面における
クラックと呼ばれる割れの発生を防止することが出来
る。Further, the surface layer portion of the heat insulating material block used in the high-temperature heating furnace of the present invention, a coating of a carbon precursor consisting of a fibrous material having the same carbonization shrinkage as the thermosetting resin constituting the foam inside Since it is formed, it is intended to strengthen and harden the foam inside. Along with this, the fibrous material that constitutes the surface layer portion can freely control the shrinkage associated with carbonization by changing the type and composite form of the fibrous material, and by appropriately selecting the carbonized fiber. By the substance, it is possible to prevent the occurrence of cracks called cracks on the surface of the carbonized or graphitized foam.
このため、本発明の高温加熱炉に用いられる断熱材ブロ
ックは、内部の発泡体と、スキン被膜層である表層部と
の成形体の炭素化に伴う収縮を整合させ、これら両者の
剥離を完全に防止し併せて独立気泡体の集合により優れ
たガス不浸透性と強度とを内部の発泡体に付与すること
が可能となる利点がある。これは、主として次に説明す
るような作用及び機構によって、このような優れた効果
がもたらされるものと考えられる。Therefore, in the heat insulating material block used in the high temperature heating furnace of the present invention, the shrinkage due to the carbonization of the molded body between the foam inside and the surface layer portion which is the skin coating layer is matched, and the peeling of the both is completely completed. In addition to this, there is an advantage that it is possible to impart excellent gas impermeability and strength to the foam inside by the aggregation of the closed cells. It is considered that this excellent effect is brought about mainly by the action and mechanism described below.
まず、成形体内部の発泡体は、フェノール樹脂、フラン
樹脂などの炭素化収率が20重量％以上の熱硬化性樹脂で
あって、難黒鉛化性の炭素前駆体からなり、クローズド
ポアーと呼ばれるミクロな独立気泡体の集合により断熱
特性を高め、さらに焼成後においてガラス状炭素のユニ
ットセルが多数集合したものとなって、本発明における
上記前駆体を採用しない黒鉛等の結晶体に比較して熱伝
導率が小さい断熱成型体がつくられるため、両者の効果
によって断熱性に優れている、これと共に、成型体の表
層部の繊維状物も、これを焼成した後に、ガラス状炭素
から成るスキン被膜層を形成することになるため、全体
としてガス不浸透性を有することになる。First, the foam inside the molded body is a thermosetting resin having a carbonization yield of 20% by weight or more, such as a phenol resin or a furan resin, and is made of a non-graphitizable carbon precursor, and is called a closed pore. Insulation characteristics are enhanced by the assembly of micro closed cells, and a large number of glassy carbon unit cells are assembled after firing, which is more than that of a crystal body such as graphite which does not employ the above precursor in the present invention. Since a heat-insulating molded body with a small thermal conductivity is produced, the heat insulating properties are excellent due to the effects of both, and the fibrous material at the surface layer of the molded body is also a skin made of glassy carbon after firing. Since it forms a coating layer, it has gas impermeability as a whole.
さらにまた、本発明の高温加熱炉に用いられる断熱材ブ
ロックは、その表層部と内部の発泡体とが一体成形され
ていて、これを焼成して炭素化又は黒鉛化しているた
め、従来のカーボンファイバーの成形体表面に黒鉛シー
ト等を貼り合せたものに比して強度が著しく増大し、併
せて収縮性の制御により表層部の緻密で密度が大きい層
と成形体内部の低密度で断熱特性に優れる発泡体層とが
完全に整合して一体成形されているため、従来の黒鉛シ
ート等を貼り合せたものに比して表面層の剥離又は脱落
が生ぜず、成形体全体の強度が増大する。Furthermore, in the heat insulating material block used in the high temperature heating furnace of the present invention, the surface layer portion and the foam inside thereof are integrally molded, and this is fired to be carbonized or graphitized. The strength is remarkably increased as compared with the one in which a graphite sheet is attached to the surface of the fiber molded body, and at the same time, due to the shrinkage control, the dense and high density layer of the surface layer and the low density inside the molded body are heat insulating properties. Since it is integrally formed with the foam layer, which has excellent heat resistance, the surface layer does not peel off or fall off compared to conventional graphite sheets and the strength of the entire molded body increases. To do.
そして、炭素化又は黒鉛化のための焼成前に発泡体と繊
維状物とを一体成形することは、従来のスキン層である
黒シート等を二次的な貼り合わせという工程によって付
加するカーボンファイバー断熱材の製造法に比して製造
コストも安価となり経済上も有利である。また、本発明
の高温加熱炉に用いられる断熱材ブロックは、小さい高
温加熱炉用としては、一体成形したもので十分利用で
き、大きな高温加熱炉用であれば、断熱材ブロックを積
み上げることにより利用できるものであり、炉の形体に
応じて適宜に応用できるものである。さらには、炉の断
熱材としてブロック状であることから部分的に修理が可
能と成り、さらにパーティクルの発生がなく、不浸透性
を有することから、クリーンな高温加熱炉を提供するも
のである。Then, integrally molding the foam and the fibrous material before firing for carbonization or graphitization is performed by adding a carbon fiber, which is a conventional skin layer, by a secondary bonding process. The manufacturing cost is lower than that of the heat insulating material manufacturing method, which is economically advantageous. Further, the heat insulating material block used in the high temperature heating furnace of the present invention can be sufficiently used as an integrally molded one for a small high temperature heating furnace, and can be used by stacking the heat insulating material blocks for a large high temperature heating furnace. It can be applied appropriately depending on the form of the furnace. Furthermore, since it is block-shaped as a heat insulating material of the furnace, it can be partially repaired, and further, since it does not generate particles and has impermeability, it provides a clean high-temperature heating furnace.
次に、図面により本発明の最も代表的な実施例について
以下説明する。Next, the most typical embodiment of the present invention will be described below with reference to the drawings.
実施例１ 第１図は本発明の高温加熱炉の一態様である誘導加熱式
高温加熱炉の縦断面図を示すものである。この誘導加熱
式高温加熱炉は、高温加熱炉容器(1)の周辺に断熱材ブ
ロック(2)25個を積み上げることによって構成した。前
記断熱材ブロック(2)の各々は、平均嵩密度が0.06ｇ／
ｃ３で表層部に厚さが約１mmの緻密な被膜（スキン層）
を有するフェノール樹脂発泡体を還元性雰囲気中で昇温
速度約20℃／hrにより約1000℃の加熱処理をして炭素化
した後、さらに昇温速度約500℃／hrにより約2200℃ま
で昇温して得られたものを使用した。なお、第１図中に
示した符号(3)は遮熱板を、符号(4)はサポートを、符号
(5)は誘導コイルをそれぞれ示す。Example 1 FIG. 1 is a longitudinal sectional view of an induction heating type high temperature heating furnace which is one mode of the high temperature heating furnace of the present invention. This induction heating type high temperature heating furnace was constructed by stacking 25 heat insulating material blocks (2) around the high temperature heating furnace vessel (1). Each of the heat insulating material blocks (2) has an average bulk density of 0.06 g /
A dense film (skin layer) with a thickness of about 1 mm on the surface layer with c 3
Phenol resin foam with carbon is heated in a reducing atmosphere at a heating rate of about 20 ° C / hr to about 1000 ° C for carbonization, and then heated to about 2200 ° C at a heating rate of about 500 ° C / hr. The one obtained by warming was used. The reference numeral (3) shown in FIG. 1 indicates a heat shield plate, reference numeral (4) indicates a support, and reference numeral
(5) shows an induction coil, respectively.
実施例２ 実施例１と同様の誘導加熱式高温加熱炉として、高温加
熱炉容器(1)の周辺に断熱材ブロック(2)25個を積み上げ
ることによって構成した。断熱材ブロック(2)の各々
は、平均嵩密度が0.08ｇ／ｃ３で表層部に厚さが約１mm
の緻密な被膜（スキン層）を有するフェノール樹脂発泡
体を実施例１と同様の処理をして得られたものである。Example 2 An induction heating type high temperature heating furnace similar to that of Example 1 was constructed by stacking 25 heat insulating material blocks (2) around the high temperature heating furnace vessel (1). Each of the heat insulating material blocks (2) has an average bulk density of 0.08 g / c 3 and a thickness of about 1 mm on the surface layer.
The phenol resin foam having the dense coating (skin layer) of No. 1 was obtained by the same treatment as in Example 1.
実施例３ 実施例１と同様の誘導加熱式高温加熱炉として、高温加
熱炉容器(1)の周辺に断熱材ブロック(2)25個を積み上げ
ることによって構成した。断熱材ブロック(2)の各々
は、平均嵩密度が0.10ｇ／ｃ３で表層部に厚さが約１mm
の緻密な被膜（スキン層）を有するフェノール樹脂発泡
体を実施例１と同様の処理をして得られたものである。Example 3 An induction heating high temperature heating furnace similar to that of Example 1 was constructed by stacking 25 heat insulating material blocks (2) around the high temperature heating furnace vessel (1). Each of the heat insulating material blocks (2) has an average bulk density of 0.10 g / c 3 and a thickness of about 1 mm on the surface layer.
The phenol resin foam having the dense coating (skin layer) of No. 1 was obtained by the same treatment as in Example 1.
実施例１〜３で使用した断熱ブロックの主な諸特性を示
すと下記第１表の通りとなる。The main characteristics of the heat insulating blocks used in Examples 1 to 3 are shown in Table 1 below.
上記の如く実施した高温加熱炉を加熱した結果、従来の
カーボンファイバーに黒鉛シート等を貼り合せたものに
比べて本発明の断熱ブロックは、表面層の剥離又は脱落
がほとんど起こらず、更に振動やガス流による消耗もほ
とんど起こらなかった。その上、本発明の高温加熱炉の
断熱ブロックは剥離又は脱落がないため、パーティクル
の発生もなかった。更に、熱伝導率は本発明の断熱ブロ
ックの方が小さいことから断熱材としての断熱効果が向
上したことが明白である。 As a result of heating the high-temperature heating furnace carried out as described above, the heat insulating block of the present invention is less likely to cause peeling or dropping of the surface layer than the conventional one in which a graphite sheet or the like is bonded to carbon fiber, and further vibration or Almost no exhaustion due to gas flow occurred. Moreover, since the heat insulating block of the high temperature heating furnace of the present invention did not peel off or fall off, no particles were generated. Furthermore, since the heat conductivity of the heat insulating block of the present invention is smaller, it is clear that the heat insulating effect as a heat insulating material is improved.
以上の説明からも明らかな如く、本発明においては、上
記実施例にて例示した如く、 「断熱材ブロックにより構成された保温構造を有する高
温加熱炉において、 前記断熱材ブロックは、内部と表層部とが一体化され
て、炭素化又は黒鉛化されたものであって、 前記断熱材ブロックの内部を構成するものとして、炭素
化収率が20重量％以上の熱硬化性樹脂の発泡体を採用す
るとともに、 前記断熱材ブロックの表面を構成する表層部として、前
記発泡体を構成する熱硬化性樹脂と同質の炭素化収縮性
を有する繊維状物からなる炭素前駆体の被膜を採用した
こと」 にその特徴があり、これにより、発泡体内部と同質の強
固で緻密な不浸透性の被膜を有し、かつ表層が強固で緻
密であるがため、表層から炭素粉などのパーティクルの
発生を防止し得る特徴を有する断熱材ブロックの集合等
により構成された保温構造を有することを特徴とする高
温加熱炉を提供することができるのである。As is clear from the above description, in the present invention, as illustrated in the above-mentioned embodiment, "in a high-temperature heating furnace having a heat retaining structure composed of a heat insulating material block, the heat insulating material block includes an inner layer and a surface layer portion. Are integrated and carbonized or graphitized, and a thermosetting resin foam having a carbonization yield of 20% by weight or more is adopted as a constituent of the inside of the heat insulating material block. In addition, as the surface layer portion forming the surface of the heat insulating material block, a carbon precursor coating made of a fibrous material having the same carbonization shrinkability as the thermosetting resin forming the foam is adopted. It has a strong and dense impermeable coating that is the same quality as the inside of the foam, and because the surface layer is strong and dense, it prevents the generation of particles such as carbon powder from the surface layer. Probable It is possible to provide a high-temperature heating furnace characterized by having a heat retaining structure constituted by a set of heat insulating material blocks having the following characteristics.
つまり、本発明の高温加熱炉は、フェノール樹脂発泡体
等を炭素化又は黒鉛化した断熱材ブロック(2)の集合に
より高温加熱炉の保温構造を構成したのであり、パーテ
ィクルの発生がなく、断熱性が優れ、更には部分的な修
理を容易迅速にできるなど、この産業上有用なものであ
る。That is, the high-temperature heating furnace of the present invention is a heat insulating structure of the high-temperature heating furnace is constituted by a set of carbonized or graphitized heat insulating material block (2) phenol resin foam or the like, there is no particle generation, heat insulation It is useful in this industry because it has excellent properties and can repair a part of it easily and quickly.
第１図は保温構造を断熱材ブロック(2)の集合により構
成した誘導加熱式高温加熱炉を示す縦断面図である。 符号の説明 (1)は高温加熱容器、(2)は断熱材、(3)は遮熱板、(4)は
サポート、(5)は誘導コイルをそれぞれ示す。FIG. 1 is a vertical cross-sectional view showing an induction heating type high temperature heating furnace having a heat insulating structure composed of a set of heat insulating material blocks (2). Explanation of reference numerals (1) indicates a high temperature heating container, (2) indicates a heat insulating material, (3) indicates a heat shield plate, (4) indicates a support, and (5) indicates an induction coil.
Claims (1)
を有する高温加熱炉において、 前記断熱材ブロックは、内部と表層部とが一体化され
て、炭素化又は黒鉛化されたものであって、 前記断熱材ブロックの内部を構成するものとして、炭素
化収率が20重量％以上の熱硬化性樹脂の発泡体を採用す
るとともに、 前記断熱材ブロックの表面を構成する表層部として、前
記発泡体を構成する熱硬化性樹脂と同質の炭素化収縮性
を有する繊維状物からなる炭素前駆体の被膜を採用した
ことを特徴とする高温加熱炉。1. A high-temperature heating furnace having a heat insulating structure composed of a heat insulating material block, wherein the heat insulating material block is one in which the inside and the surface layer portion are integrated and carbonized or graphitized. As a constituent of the heat insulating material block, a carbonization yield of 20% by weight or more of a thermosetting resin foam is adopted, and the foam is used as a surface layer constituting the surface of the heat insulating material block. A high-temperature heating furnace, wherein a coating film of a carbon precursor made of a fibrous material having the same carbonization shrinkage as that of the thermosetting resin constituting the above is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31370986A JPH0633952B2 (en) | 1986-12-25 | 1986-12-25 | High temperature heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31370986A JPH0633952B2 (en) | 1986-12-25 | 1986-12-25 | High temperature heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63163779A JPS63163779A (en) | 1988-07-07 |
| JPH0633952B2 true JPH0633952B2 (en) | 1994-05-02 |
Family
ID=18044570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31370986A Expired - Lifetime JPH0633952B2 (en) | 1986-12-25 | 1986-12-25 | High temperature heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633952B2 (en) |
-
1986
- 1986-12-25 JP JP31370986A patent/JPH0633952B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63163779A (en) | 1988-07-07 |
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