JPH03199304A - High-heat resistant sealing member - Google Patents
High-heat resistant sealing memberInfo
- Publication number
- JPH03199304A JPH03199304A JP33852889A JP33852889A JPH03199304A JP H03199304 A JPH03199304 A JP H03199304A JP 33852889 A JP33852889 A JP 33852889A JP 33852889 A JP33852889 A JP 33852889A JP H03199304 A JPH03199304 A JP H03199304A
- Authority
- JP
- Japan
- Prior art keywords
- sealing member
- refining
- packing
- steel
- resistant sealing
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 238000007670 refining Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 229910001026 inconel Inorganic materials 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims abstract description 4
- 229910052570 clay Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 239000000155 melt Substances 0.000 claims abstract 2
- 239000011819 refractory material Substances 0.000 claims abstract 2
- 239000000945 filler Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910052845 zircon Inorganic materials 0.000 claims description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 3
- 230000008018 melting Effects 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 238000009849 vacuum degassing Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000009969 flowable effect Effects 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000013212 metal-organic material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
５００℃以上の高温度域で使用するｆＩｌ精錬工程装置
等の接合部位の密１４性を高めた耐熱性シール部材に閏
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to heat-resistant sealing members that improve the tightness of the joint parts of flI refining process equipment, etc., which are used in high temperature ranges of 500° C. or higher.
工業技術が高まるにつれて各種機械の素材として使われ
る鋳鉄鋼の軽量化が要求されるようになり、使用素材の
薄形、小形化の為に要求される鋳片の純度水準は高いレ
ヘルに達している．この高純度を達成するために高温シ
ール部材を欠かすことができず、鉄鋼精錬上・程中シー
ル部からの空気巻き込みを原因とする酸化や窒素ガスの
介入を防止しなければならない。As industrial technology improves, the weight of cast iron used as a material for various machines is required to be lighter, and the purity level of slabs required to make the materials used thinner and smaller has reached a high level. There is. In order to achieve this high purity, a high-temperature sealing member is essential, and it is necessary to prevent oxidation and nitrogen gas interference caused by air entrainment from the sealing part during the steel refining process.
［従来の技術］
鉄鋼精錬工程における真空脱ガス、取鍋精錬、タンデイ
ツシュ、流滴脱ガス、Ｒ Ｈ法及びＤＨ法等の装置は５
００℃以上の高温度下にあり、これらの装置の密封保持
に使われる接合部分のパッキング部材にはアスベストや
ノンアスベスト等の無機質又はｓｕｓｍやインコネル等
の金属からなる円形ドーナツ型の中空形状部材が使われ
ている。[Prior art] Equipment for vacuum degassing, ladle refining, tundish, droplet degassing, R H method, DH method, etc. in the steel refining process is 5
The packing material used to seal the joints of these devices under high temperatures of 00°C or higher is a circular donut-shaped hollow member made of inorganic material such as asbestos or non-asbestos, or metal such as SUSM or Inconel. It is used.
しかし高温度での使用では、中空形状部材に相当な変形
を起こし、密到度が低下するばかりでなく、シール部の
強度保持上も問題があるので従来パッキング部材による
これら装置の密封耐久力は高純度の要求を満たすには余
りにも不完全である。However, when used at high temperatures, the hollow shaped member undergoes considerable deformation, which not only reduces the tightness but also causes problems in maintaining the strength of the sealing part, so the sealing durability of these devices using conventional packing members is limited. It is too incomplete to meet high purity requirements.
［発明が解決しようとする問題点］
生産鋳鋼片の純度向上のために問題となる密封部は、生
産工程装置自体が重量物であって、しかも５００℃以上
の高温度になるため上記装置のシール接合部に隣接部材
の熱膨張による大きな圧着力を発生させ、該バッキング
部材が高温と圧着力でかなり変形するので、装置の温度
が下がった時に元の形状に戻らず密封性が低下し、外気
が装置内に入り込み精錬鋼に酸化や窒素ガスによる悪影
響を与える。生産鋳鋼片の厳しい純度の向上のためには
高温下の圧着力で変形を起こさないバッキング部材が不
可欠となっているので、これを開発した。[Problems to be Solved by the Invention] The sealing part, which is a problem for improving the purity of produced cast steel billets, is a problem because the production process equipment itself is heavy and the temperature reaches high temperatures of 500°C or more. A large pressure force is generated at the seal joint due to the thermal expansion of the adjacent member, and the backing member is considerably deformed by the high temperature and pressure force, so when the temperature of the device falls, it does not return to its original shape and the sealing performance deteriorates. Outside air enters the equipment and adversely affects the refined steel due to oxidation and nitrogen gas. In order to strictly improve the purity of produced cast steel billets, it is essential to have a backing member that does not deform under pressure under high temperature, so we developed this backing member.
［問題を解決するための手段］
鋼精錬工程における５００℃以上の高温度で使用する装
置の接合部位の密到度を高める為に、高耐熱性シール部
材をＳＵＳ鋼及びインコネル等の耐熱鋼からなる中空円
形ドーナツ型のバッキング部材の内部に、鉛、亜鉛、ア
ルミニウム等の上記温度下でＮ！ｊＪ融流動する低融点
金属もしくはアルミナ、シリカ、ジルコニア、ジルコン
、黒鉛、粘土、フリット材等の嗣火物の１７ｚ〜２．０
＋＋ｎ＋＋の流動性微粉体の充填材を単独又は複合で中
空ドーナツ状バッキング部材の中空部に充填し、前記装
置の熱膨張により上記接合部に掛る圧着力に対して、上
記充填材の流体または微粉体が流動的に前記中空リング
状バッキング部材に内圧を負荷して、該中空リング状バ
ッキング部材を当接シール面に適合接触することを特徴
とする高耐熱性シール部材を開発した。当該内部充填材
の１μ〜２．０−の微粉粒子は高圧を受けると粒子相互
が均一な圧力を受けるように流動し、内部から中空バッ
キング部材に均一圧を働かせ該中空バッキング部材に歪
変形を起こさせない。低融点金属も高温ないし高圧を受
けて液体流動し、該中空バッキング部材の変形を内部流
体均圧により抑制し、圧着力に対して中空バッキング部
材の外形を保ち、接合部の強度かを維持する。該シール
部の密封構造を長い間保持てきるので装置全体の密封性
が高まる。[Means for solving the problem] In order to increase the density of the joints of equipment used at high temperatures of 500°C or higher in the steel refining process, high heat-resistant sealing members were made of heat-resistant steel such as SUS steel and Inconel. Inside the hollow circular donut-shaped backing member, lead, zinc, aluminum, etc. are heated under the above temperature. jJ 17z~2.0 of low melting point metals or semi-fired materials such as alumina, silica, zirconia, zircon, graphite, clay, and frit materials.
++n++ fluid fine powder filler alone or in combination is filled into the hollow part of the hollow doughnut-shaped backing member, and the fluid or fine powder of the filler is We have developed a highly heat-resistant sealing member characterized in that a body fluidly applies internal pressure to the hollow ring-shaped backing member to bring the hollow ring-shaped backing member into conforming contact with the abutting sealing surface. When the 1 μ to 2.0 μm fine powder particles of the internal filler are subjected to high pressure, they flow so that each particle receives uniform pressure, and a uniform pressure is applied from inside to the hollow backing member to cause distortion and deformation in the hollow backing member. I won't let it happen. Low melting point metals also flow as liquids when subjected to high temperature or high pressure, and the deformation of the hollow backing member is suppressed by internal fluid pressure equalization, maintaining the outer shape of the hollow backing member against the pressure force and maintaining the strength of the joint. . Since the sealed structure of the seal portion can be maintained for a long time, the sealing performance of the entire device is improved.
［作用および実施例］
本発明は、鋼精錬装置に使われる高温度に耐えるリング
状の高耐熱性シール部材（１）であり、第１図の（Ａ）
、（Ｂ）及び（Ｃ）に示す通り、各々円形、楕円形及び
角形の中空断面を有する高ｊｉｌｓ性のバッキング部材
（２）とその内部の充填材（３）から構成される。この
バッキング部材（２）として耐熱度の高いステンレス鋼
やニッケル合金のインコネル、そして内部の充填材（３
）として鉛、亜鉛及びアルミニウム等の低融点金属粉ま
たは、アルミナ、シリカ、ジルコニア、ジルコン、黒鉛
、粘土及びフリット材等の粒度１μ〜２．０−の耐火性
粒状物粉体が単独または混合物として、もしくは低融点
金属粉と組合せて使われる。この充填材は５００℃以上
の使用範囲で液体または粉体として存在し、装置からそ
の熱膨張等による圧着力を受けた中空パ・ンキング部材
（２〉の内部充填材（３）が流動体として作用し、この
性質上、バッキング部材（２）の内部圧が均一となり、
変形が起きに＜＜、温度及び圧着力の変化にかかわらず
常にシール部材（１）は安定し密封性を保持する。この
耐熱性シール部材（１）の使用例として第１図（Ｄ）に
ＤＨ容器の内張部分を示す。高耐熱性シール部材（１）
の使用箇所Ｘを拡大図（Ｅ）で示す。[Operations and Examples] The present invention is a ring-shaped highly heat-resistant sealing member (1) that can withstand high temperatures and is used in steel refining equipment, as shown in FIG. 1 (A).
, (B) and (C), each of the backing members is composed of a high-jils backing member (2) having a circular, oval, and square hollow cross section, and a filler (3) inside the backing member (2). The backing member (2) is made of highly heat-resistant stainless steel or nickel alloy Inconel, and the internal filler (3) is used as the backing member (2).
) as low-melting point metal powders such as lead, zinc, and aluminum, or refractory granular powders with a particle size of 1 μ to 2.0 μm such as alumina, silica, zirconia, zircon, graphite, clay, and frit materials, singly or as a mixture. or in combination with low melting point metal powder. This filler exists as a liquid or powder in the operating range of 500°C or higher, and the internal filler (3) of the hollow punching member (2), which receives pressure from the device due to its thermal expansion, becomes a fluid. Due to this property, the internal pressure of the backing member (2) becomes uniform,
Despite deformation, the sealing member (1) remains stable and maintains its sealing performance regardless of changes in temperature and pressure. As an example of the use of this heat-resistant sealing member (1), FIG. 1(D) shows the lining part of a DH container. High heat resistant sealing member (1)
The usage location X is shown in an enlarged view (E).
［発明の効果］
本発明の剣熱性シール部材は、金属や無機質で作った従
来の中肉バッキング部材が変形して密封力を低下させた
５００℃以上の高温度で使用する時、該シール部材の内
部に発生する応力は内部充填材として存在する液体また
は圧力で流動する微粒子によりシール全体に分散される
ので、均一化された小さな応力の分布となり、局部に集
中的な大きな応力が生じないのでシール部材の変形又は
破損を誘起せず、鋼精錬工程装置の密封性を高度に維持
するので、高純度な鋳鋼片の生産を行うことができる。[Effects of the Invention] The heat-resistant sealing member of the present invention can be used at high temperatures of 500°C or higher, where conventional medium-walled backing members made of metal or inorganic materials are deformed and their sealing force is reduced. The stress generated inside the seal is dispersed throughout the seal by the liquid that is present as an internal filler or by the fine particles that flow under pressure, resulting in a homogenized small stress distribution and no large concentrated stress occurring locally. Since the sealing member is not deformed or damaged and the sealing performance of the steel refining process equipment is maintained at a high level, high-purity cast steel pieces can be produced.
又、シール部材の耐久性の増大は稼動率、品質の安定か
ら全体的な生産コストの低下に役立つ。In addition, increasing the durability of the sealing member helps to stabilize the operating rate and quality, thereby reducing overall production costs.
第１図の（Ａ）、（Ｂ）及び（Ｃ）は各々ｉ４熱性シー
ル部材の正面図とその断面図、（Ｄ）は本発明の使用例
、（Ｅ）はその使用箇所の拡大図を示す。
（１）
（２）
（３）
（４）
高嗣熱性シール部材
金属製バッキング部材
充填材
ボルト及びナツト(A), (B), and (C) of Fig. 1 are respectively a front view and a sectional view of the i4 thermal sealing member, (D) is an example of the use of the present invention, and (E) is an enlarged view of the location where it is used. show. (1) (2) (3) (4) Takatsugu thermal seal member Metal backing member Filler material Bolts and nuts
Claims (1)
接合部位に用いる高耐熱性シール部材において、ＳＵＳ
鋼及びインコネル等の耐熱鋼からなる中空リング状パッ
キング部材と、前記中空リング状パッキング部材の中空
部に充填された、上記温度近傍で溶融して流動性を示す
低融点金属もしくはアルミナ、シリカ、ジルコニア、ジ
ルコン、黒鉛、粘土、フリット材等の耐火物の１μ〜２
．０ｍｍの流動性粉体の充填材の一種もしくは２種以上
とからなることを特徴とする高耐熱性シール部材。SUS is used as a highly heat-resistant seal member used in the joint parts of equipment used at high temperatures such as steel refining processes of 500°C or higher.
A hollow ring-shaped packing member made of heat-resistant steel such as steel and Inconel, and a low-melting point metal that melts and exhibits fluidity near the above temperature, or alumina, silica, or zirconia, which is filled in the hollow part of the hollow ring-shaped packing member. , 1μ to 2μ of refractory materials such as zircon, graphite, clay, and frit materials.
．． A highly heat-resistant sealing member comprising one or more types of 0 mm fluid powder filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1338528A JP2519111B2 (en) | 1989-12-28 | 1989-12-28 | High heat resistance seal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1338528A JP2519111B2 (en) | 1989-12-28 | 1989-12-28 | High heat resistance seal material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03199304A true JPH03199304A (en) | 1991-08-30 |
| JP2519111B2 JP2519111B2 (en) | 1996-07-31 |
Family
ID=18319014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1338528A Expired - Lifetime JP2519111B2 (en) | 1989-12-28 | 1989-12-28 | High heat resistance seal material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519111B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009030886A (en) * | 2007-07-27 | 2009-02-12 | Jfe Steel Kk | Sealing method and device for ladle refining facility |
| JP2011213873A (en) * | 2010-03-31 | 2011-10-27 | Nippon Steel Corp | Sealing material used for inside of high temperature furnace, and sealing mechanism |
| CN102635694A (en) * | 2012-04-16 | 2012-08-15 | 潜江市熠荣科技有限公司 | Closed loop energy-saving functional ring and preparation method thereof |
| WO2015137154A1 (en) * | 2014-03-13 | 2015-09-17 | 東京窯業株式会社 | Gas supply device for vacuum refining furnace |
-
1989
- 1989-12-28 JP JP1338528A patent/JP2519111B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009030886A (en) * | 2007-07-27 | 2009-02-12 | Jfe Steel Kk | Sealing method and device for ladle refining facility |
| JP2011213873A (en) * | 2010-03-31 | 2011-10-27 | Nippon Steel Corp | Sealing material used for inside of high temperature furnace, and sealing mechanism |
| CN102635694A (en) * | 2012-04-16 | 2012-08-15 | 潜江市熠荣科技有限公司 | Closed loop energy-saving functional ring and preparation method thereof |
| WO2015137154A1 (en) * | 2014-03-13 | 2015-09-17 | 東京窯業株式会社 | Gas supply device for vacuum refining furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519111B2 (en) | 1996-07-31 |
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