JPH0380154A - Carbon brick - Google Patents
Carbon brickInfo
- Publication number
- JPH0380154A JPH0380154A JP1216769A JP21676989A JPH0380154A JP H0380154 A JPH0380154 A JP H0380154A JP 1216769 A JP1216769 A JP 1216769A JP 21676989 A JP21676989 A JP 21676989A JP H0380154 A JPH0380154 A JP H0380154A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- weight
- parts
- brick
- refractory particles
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000011449 brick Substances 0.000 title claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 18
- 239000002184 metal Substances 0.000 abstract description 18
- 239000000843 powder Substances 0.000 abstract description 12
- 230000003647 oxidation Effects 0.000 abstract description 11
- 238000007254 oxidation reaction Methods 0.000 abstract description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 10
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 239000000395 magnesium oxide Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 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 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 3
- 238000004898 kneading Methods 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 229910018134 Al-Mg Inorganic materials 0.000 abstract 1
- 229910018467 Al—Mg Inorganic materials 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- -1 flux Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カーボンれんが、特に高炉炉壁用耐火物、溶
銑鍋や混銑車等の溶銑予備処理用耐火物、或いは転炉、
電気炉、取鍋等の精錬容器用耐火物として用いられると
ころのカーホンれんかに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to carbon bricks, particularly refractories for blast furnace walls, refractories for pretreatment of hot metal such as hot metal pots and pig iron mixing cars, or converters,
This invention relates to carphone bricks used as refractories for refining containers such as electric furnaces and ladles.
従来においては、混銑車、転炉及び電気炉等の溶融金属
容器にカーボン含有のＡｊ２２０３−Ｃ系及びＭｇ０−
Ｃ系のれんがが用いられている。特に、カーボン含有量
の多いカーボンれんがは、熱伝導性が良く、熱衝撃抵抗
性に優れ、また、化学的抵抗性にも優れていて、溶融金
属及びフラックス・スラグに対して高い耐食性及び耐浸
透性を有している。Conventionally, carbon-containing Aj2203-C and Mg0-
C-type bricks are used. In particular, carbon bricks with a high carbon content have good thermal conductivity, excellent thermal shock resistance, and excellent chemical resistance, and have high corrosion resistance and penetration resistance against molten metal, flux, and slag. It has a sexual nature.
Ｃ発明が解決しようとする課題〕
しかし、上述した利点がある一方において、カーボン含
有量の多いカーボンれんがは、次の如き欠点を持つ。C Problems to be Solved by the Invention] However, while having the above-mentioned advantages, carbon bricks with a high carbon content have the following drawbacks.
即ち、かかる欠点を大別すると、
■ 特に溶融金属と接するれんがの表面のカーボンが酸
化、脱炭され易い、
■ 上述のれんがの表面のカーボンが酸化、脱炭するの
に伴い、れんが表面の組織が脆弱化し、れんが表面から
構成材が剥離したり、摩耗、損傷し易くなる、
というものである。That is, these shortcomings can be broadly classified as follows: 1. The carbon on the surface of the brick that comes into contact with molten metal is particularly susceptible to oxidation and decarburization; This means that the bricks become brittle, and the constituent materials peel off from the brick surface, making them more susceptible to wear and damage.
こうした欠点を解消するために、カーボン含有量を滅ら
ずと、本来の熱伝導性の低下と耐食性等の優れた特性が
低下してしまう。 そこで、従来においては、金属粉、
合金粉等を用いて酸化抑制していたのであるが、こうし
た手段も上述の問題を充分に解決できなかった。In order to eliminate these drawbacks, the carbon content must be reduced, otherwise the original thermal conductivity and excellent properties such as corrosion resistance will deteriorate. Therefore, in the past, metal powder,
Oxidation has been suppressed using alloy powder, but these measures have not been able to satisfactorily solve the above-mentioned problems.
本発明は、かかる従来技術の問題点に鑑み、カーボン含
有量を減らずことなく、そのカーボンの酸化を抑制でき
るようにしたカーホンれんがを提供するものである。In view of the problems of the prior art, the present invention provides a carphone brick in which oxidation of carbon can be suppressed without reducing the carbon content.
本発明にかかるカーボンれんがは、上記課題の解決のた
めに、
粒径３０〜５ｍｍの耐火物粒子を１０〜６０重量部と、
炭素材料４０〜９０重量部との合計１００重量部に対し
て有機バインダー３〜２５重量部を加えて混練・成形後
熱処理するように構成した、のである。In order to solve the above problems, the carbon brick according to the present invention contains 10 to 60 parts by weight of refractory particles with a particle size of 30 to 5 mm,
The structure is such that 3 to 25 parts by weight of an organic binder is added to a total of 100 parts by weight including 40 to 90 parts by weight of carbon material, and heat treatment is performed after kneading and shaping.
上記カーボンれんかには、単体金属粉及び／又は合金粉
を伺加するのが好ましい。It is preferable to add elemental metal powder and/or alloy powder to the carbon brick.
上記耐火物粒子は、マグネシア、マグクロ、りロム、ラ
イム、スピネル、アルミナ、ムライト、シリマナイト族
鉱物、シリカ、ジルコニア、ジルコン等の耐火原料から
選ばれる１種又は２種以上の混合物が用いられる。耐火
物粒子の粒径は３０〜５ｍｍとするのが好ましく、必要
ならば、常法に従ってこの範囲内において粒径の異なる
原料を組み合わせ使用することもできる。The refractory particles used are one or a mixture of two or more refractory raw materials selected from refractory raw materials such as magnesia, maguro, lime, spinel, alumina, mullite, sillimanite group minerals, silica, zirconia, and zircon. The particle size of the refractory particles is preferably 30 to 5 mm, and if necessary, raw materials having different particle sizes within this range can be used in combination according to a conventional method.
上記耐火物粒子の粒径を３０〜５ｍｍと特定しているが
、これは、粒径５ｍｍ未満ではスラグの付着係留効果が
極めて悪くなること、及び３０ｍｍを超えるとなると、
れんがの品質上好ましくないというだけの理由によるも
のであるから、かかる程度問題を考慮するなら、この数
値限定を僅かに逸脱したとしても実質上本発明の均等範
囲に包含されることが明らかである。The particle size of the refractory particles is specified as 30 to 5 mm, but this is because if the particle size is less than 5 mm, the slag adhesion and mooring effect will be extremely poor, and if it exceeds 30 mm,
This is simply because the quality of the bricks is unfavorable, so if we consider the extent of the problem, it is clear that even if we slightly deviate from this numerical limitation, it is substantially within the equivalent scope of the present invention. .
本発明に用いられる炭素材料としては、天然黒鉛、人造
黒鉛、石油コークス、ピッチコークス、仮焼無煙炭及び
カーボンブランク等の１種又は２種以上を用いる。As the carbon material used in the present invention, one or more of natural graphite, artificial graphite, petroleum coke, pitch coke, calcined anthracite, carbon blank, etc. are used.
上記耐火物粒子と炭素刊料との使用割合を、上述の如き
重量比で特定しているが、それは、炭素材料が４０重量
部未満では耐熱性及び溶融金属、スラグに対する耐食性
が低下するためである。The ratio of the refractory particles to the carbon material used is specified by the weight ratio as described above, because if the carbon material is less than 40 parts by weight, the heat resistance and corrosion resistance against molten metal and slag will decrease. be.
また、逆に９０重量部を超えると耐酸化性が低下してし
まうためである。 従って、上記耐火物粒子の粒度特定
と同様に、実施に際してかかる使用割合か少し逸脱して
いても、本発明の目的を達成する範囲において、均等の
範囲に含まれるものであることが明らかである。On the other hand, if it exceeds 90 parts by weight, oxidation resistance will decrease. Therefore, as with the particle size specification of the refractory particles mentioned above, it is clear that even if there is a slight deviation from the usage ratio in practice, it is within the equivalent range as long as the purpose of the present invention is achieved. .
また、本発明における有機バインダーとしては、例えば
、タール、ピンチ及びフェノール樹脂、フラン樹脂、エ
ポキシ樹脂、シリコン樹脂等の合成樹脂等を挙げること
ができ、これらの１種又は２種以」二を用いる。Examples of the organic binder in the present invention include tar, pinch, and synthetic resins such as phenol resin, furan resin, epoxy resin, and silicone resin, and one or more of these may be used. .
そして、この有機バインダーの使用量は、それが３重量
部未満であると、れんがの成形自体が困難となって、且
つ、機輌的強度も低下し、反対に２５重量部を超えると
耐火物組織が脆弱化するのである。従って、上記各材料
の数値特定と同様に、この有機バインダーの使用量につ
いても、その範囲を少々逸脱しても本発明の目的を達成
できる範囲であれば、均等の範囲に含まれるものである
ことが明らかである。If the amount of organic binder used is less than 3 parts by weight, it will become difficult to form the bricks and the mechanical strength will also decrease, whereas if it exceeds 25 parts by weight, the refractories will deteriorate. Organizations become more vulnerable. Therefore, in the same way as the numerical specification of each material mentioned above, the amount of the organic binder to be used falls within the equivalent range as long as the purpose of the present invention can be achieved even if slightly deviating from the range. That is clear.
尚、」１述の単体金属粉及び／又は合金粉を添加する場
合、その金属類は、例えば、金属アルミニウム、金属シ
リコン、／’ｊ２−Ｍｇ合金、ＡＡ−３ｊ合金等があり
、その１種又は２種以上を用いることができる。In addition, when adding the single metal powder and/or alloy powder mentioned in 1., the metals include, for example, metal aluminum, metal silicon, /'j2-Mg alloy, AA-3j alloy, etc. Or two or more types can be used.
本発明カーボンれんがは耐火物粒子、炭素材料に有機バ
インダーを加えて混練し、所定のれんが形状に成形した
後、該れんがを１２０〜３００°Ｃで５〜６０時間加熱
処理するか、又は、１２００〜１５００℃で５〜６０時
間還元焼成することによって製造される。The carbon brick of the present invention is produced by adding an organic binder to refractory particles and a carbon material, kneading the mixture, forming it into a predetermined brick shape, and then heat-treating the brick at 120 to 300°C for 5 to 60 hours, or It is produced by reduction firing at ~1500°C for 5 to 60 hours.
本発明のカーボンれんがは、その耐火物粒子が特定範囲
の粒径をもっていることと、これが他の混合物と所定の
混合比で混練・成形されていることによって、れんがの
使用中に７トリソクス部から損耗されてその表面に前記
耐火物粒子が突出されることとなり、その所定粒度故に
前記れんがの表面に溶融金属のスラグ（又は溶融金属）
を係留できて、一種のスラグコーティングが形成され、
これによって、前記れんがの表面をスラグで被覆するの
である。The carbon brick of the present invention has refractory particles having a particle size within a specific range, and is kneaded and formed with other mixtures at a predetermined mixing ratio. As the bricks are worn away, the refractory particles protrude from the surface, and due to their predetermined particle size, slag of molten metal (or molten metal) is formed on the surface of the brick.
can be moored, a kind of slag coating is formed,
This coats the surface of the bricks with slag.
〔実施例−１〕
本発明にかかるカーボンれんがとその製造方法について
詳述する。[Example-1] A carbon brick according to the present invention and a method for manufacturing the same will be described in detail.
粒径２０〜１０ｍｍの電融マグネシア３０重量部、粒径
１０〜５ｍｍの電融マグネシア１０重量部、電融マグネ
シアの微粉１０重量部、鱗状黒鉛５０重量部の合計１０
０重量部に対してＡ６−Ｍｇ合金粉４重量部と、有機バ
インダーとしてフェノール樹脂を５重量部を添加し、常
温で混練し、２３０ｘ２３０ｘｌ ０Ｏｒｎｒｎの形状
に成形したのち、乾燥炉で２００°Ｃの温度で４８時間
熱処理を行い、耐火物粒子を含有したカーボンれんがを
得た。A total of 10 parts by weight of 30 parts by weight of fused magnesia with a particle size of 20 to 10 mm, 10 parts by weight of fused magnesia with a particle size of 10 to 5 mm, 10 parts by weight of fine powder of fused magnesia, and 50 parts by weight of scaly graphite.
To 0 parts by weight, 4 parts by weight of A6-Mg alloy powder and 5 parts by weight of phenolic resin as an organic binder were added, kneaded at room temperature, formed into a shape of 230x230xl 0Ornrn, and then heated in a drying oven at 200°C. A heat treatment was performed at the same temperature for 48 hours to obtain carbon bricks containing refractory particles.
このカーボンれんがを試料として、各種試験を行った結
果を第１表に示す。Table 1 shows the results of various tests conducted using this carbon brick as a sample.
第１表から明らかなように、本発明のカーボンれんがは
、含有カーボンの酸化が抑制される結果として、耐食性
、耐酸化性、耐摩耗性に優れていることが分かる。As is clear from Table 1, it can be seen that the carbon brick of the present invention has excellent corrosion resistance, oxidation resistance, and wear resistance as a result of suppressing the oxidation of the carbon contained therein.
尚、第１表には、比較のために従来のカーボンれんがを
併記した。In addition, conventional carbon bricks are also listed in Table 1 for comparison.
この第１実施例のカーボンれんがは、電気炉のホットス
ポット又は転炉の側壁内張りに用いられるものである。The carbon brick of this first embodiment is used for lining the hot spot of an electric furnace or the side wall of a converter.
Ｃ実施例−２〕
粒径１５〜５ｍｍのアル案す４０重量部、アルミナの微
粉１０重量部、鱗状黒鉛５０重量部の合計１００重量部
に対して金属シリコン６重量部と、有機バインダーとし
てフェノール樹脂を５重量部を添加し、常温で混練し、
２３０ｘ２３０ｘｌＯＯｍｍの形状に成形したのち、乾
燥炉で１４００°Ｃの温度で１０時間還元焼成を行い、
耐火物粒子を含有したカーボンれんがを得た。C Example-2] For a total of 100 parts by weight of 40 parts by weight of Al having a particle size of 15 to 5 mm, 10 parts by weight of fine alumina powder, and 50 parts by weight of scale graphite, 6 parts by weight of metallic silicon and phenol as an organic binder were added. Add 5 parts by weight of resin and knead at room temperature,
After forming into a shape of 230x230xlOOmm, reduction firing was performed at a temperature of 1400°C for 10 hours in a drying oven.
Carbon bricks containing refractory particles were obtained.
このカーボンれんがを試料として、各種試験を行った結
果を第■実施例と同様に第１表に示す。Using this carbon brick as a sample, various tests were conducted and the results are shown in Table 1 as in Example ①.
この実施例−２のカーボンれんがも、上記第１実施例と
同様に、含有カーボンの酸化が抑制される結果として、
優れた物性を備えている。Similarly to the first example, the carbon brick of this Example-2 also has the following properties as a result of suppressing the oxidation of the carbon contained therein:
It has excellent physical properties.
このカーボンれんがは、溶銑鍋、混銑車、高炉等の内張
りに用いられるものである。These carbon bricks are used for lining hot metal pots, pig iron mixers, blast furnaces, etc.
本発明にかかるカーボンれんかによれば、れんがのカー
ボン含有量を減らすことなく、多量のカ■
−ボンを含有することによる熱伝導性、耐食性、耐浸透
性を保持した状態で、そのカーホンの酸化を溶融金属の
スラグコーティング（溶融金属又はスラグの皮膜）を利
用して抑制でき、以て、耐酸化性、耐摩耗性、耐食性を
向上させることができるに至ったものである。According to the carbon brick according to the present invention, the carbon brick can maintain its thermal conductivity, corrosion resistance, and permeation resistance by containing a large amount of carbon without reducing the carbon content of the brick. Oxidation can be suppressed by using a molten metal slag coating (molten metal or slag film), thereby making it possible to improve oxidation resistance, wear resistance, and corrosion resistance.
また、金属粉を添加することによって、」１記効果に加
えて、熱間強度の向上と耐酸化性とを一層向上させるこ
とができるのである。Furthermore, by adding metal powder, in addition to the effect described in item 1, it is possible to further improve hot strength and oxidation resistance.
Claims (1)
部と、炭素材料４０〜９０重量部との合計１００重量部
に対して有機バインダー３〜２５重量部を加えて混練・
成形後熱処理してなることを特徴とするカーボンれんが
。(1) Add 3 to 25 parts by weight of an organic binder to a total of 100 parts by weight of 10 to 60 parts by weight of refractory particles with a particle size of 30 to 5 mm and 40 to 90 parts by weight of carbon material, and knead.
A carbon brick characterized by being heat-treated after molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01216769A JP3107211B2 (en) | 1989-08-22 | 1989-08-22 | Carbon brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01216769A JP3107211B2 (en) | 1989-08-22 | 1989-08-22 | Carbon brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380154A true JPH0380154A (en) | 1991-04-04 |
| JP3107211B2 JP3107211B2 (en) | 2000-11-06 |
Family
ID=16693617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01216769A Expired - Fee Related JP3107211B2 (en) | 1989-08-22 | 1989-08-22 | Carbon brick |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3107211B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08295555A (en) * | 1995-04-27 | 1996-11-12 | Kurosaki Refract Co Ltd | High durability magnesia-carbon brick |
| CN1293207C (en) * | 2005-11-03 | 2007-01-03 | 巩义市神龙耐火材料有限公司 | Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace |
-
1989
- 1989-08-22 JP JP01216769A patent/JP3107211B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08295555A (en) * | 1995-04-27 | 1996-11-12 | Kurosaki Refract Co Ltd | High durability magnesia-carbon brick |
| CN1293207C (en) * | 2005-11-03 | 2007-01-03 | 巩义市神龙耐火材料有限公司 | Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3107211B2 (en) | 2000-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |