JPH0753609B2 - Method for producing highly durable refractory material containing boron nitride - Google Patents
Method for producing highly durable refractory material containing boron nitrideInfo
- Publication number
- JPH0753609B2 JPH0753609B2 JP61220987A JP22098786A JPH0753609B2 JP H0753609 B2 JPH0753609 B2 JP H0753609B2 JP 61220987 A JP61220987 A JP 61220987A JP 22098786 A JP22098786 A JP 22098786A JP H0753609 B2 JPH0753609 B2 JP H0753609B2
- Authority
- JP
- Japan
- Prior art keywords
- boron nitride
- resistance
- weight
- refractory material
- strength
- 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
- 229910052582 BN Inorganic materials 0.000 title claims description 18
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims description 18
- 239000011819 refractory material Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 19
- 238000004901 spalling Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000029087 digestion Effects 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000036619 pore blockages Effects 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 102100026816 DNA-dependent metalloprotease SPRTN Human genes 0.000 description 1
- 101710175461 DNA-dependent metalloprotease SPRTN Proteins 0.000 description 1
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001079 digestive effect Effects 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
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material 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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、溶融金属と接触する場所、特に溶鋼の連続鋳
造装置に好適に使用できる耐火物の製造法に関する。TECHNICAL FIELD The present invention relates to a method for producing a refractory material that can be suitably used in a place where it comes into contact with molten metal, particularly in a continuous casting apparatus for molten steel.
特開昭55−34663号公報，特開昭56−139260号公報，特
開昭59−169982号公報等に窒化硼素含有耐火物が溶融金
属，スラグに対して極めて安定であり、かつ優れた耐ス
ポーリング性を有するものであることが開示されてい
る。In JP-A-55-34663, JP-A-56-139260, JP-A-59-169982, etc., a boron nitride-containing refractory is extremely stable against molten metal and slag and has excellent resistance. It is disclosed that it has a spalling property.
しかしながら、従来の窒化硼素含有耐火物は圧縮強さが
450kg/cm2以下、熱間曲げ強さが1400℃で190kg/cm2以下
と低く、特に圧縮強化さが充分ではなく、その結果、と
くに振動もしくは摩耗に関する耐久性が不足している。However, the conventional boron nitride-containing refractory has a compressive strength
It has a low bending strength of 450 kg / cm 2 or less and a hot bending strength of 190 kg / cm 2 or less at 1400 ° C., and the compression strengthening is not sufficient. As a result, the durability especially against vibration or wear is insufficient.
また、窒化硼素含有耐火物によって作られたノズルは含
有する窒化硼素の熱伝導性のためアルミナ析出による孔
閉塞が起り易く。従って、ノズル用としては強度を向上
させると同時に、耐食性を維持しながら孔閉塞性を改良
する必要がある。In addition, a nozzle made of a refractory material containing boron nitride is likely to cause hole blockage due to precipitation of alumina because of the thermal conductivity of the contained boron nitride. Therefore, for nozzles, it is necessary to improve the strength and at the same time improve the hole blocking property while maintaining the corrosion resistance.
さらに、窒化硼素含有耐火物に黒鉛を含有している場合
には、黒鉛は溶鋼に溶解し易く、また、強度向上は期待
できない。Further, in the case where the boron nitride-containing refractory contains graphite, the graphite is easily dissolved in the molten steel, and strength improvement cannot be expected.
また、更に窒化硼素含有耐火物の結合に寄与する成分と
して金属珪素を添加することによって強度向上は期待で
きるが、添加金属珪素から作られるβ−SiC,Si3N4,Si2O
N2等のボンドは溶鋼に対する耐食性，耐スポーリング性
に難点がある。Further, although strength improvement can be expected by adding metallic silicon as a component contributing to the bonding of the boron nitride-containing refractory, β-SiC, Si 3 N 4 , Si 2 O made from the added metallic silicon can be expected.
Bonds such as N 2 have problems in corrosion resistance and spalling resistance to molten steel.
従って、窒化硼素含有耐火物において含有する窒化硼素
による耐スポーリング性と耐食性を充分に発揮させるた
めにはAl4C3,AlN等を形成する金属アルミニウムの使用
が考えられるが、Al4C3,AlNのみの形成による結合では
耐消化性において劣るという問題が生じる。Therefore, in order to sufficiently exert the spalling resistance and corrosion resistance due to the contained boron nitride in the boron nitride-containing refractory, use of aluminum metal forming Al 4 C 3 , AlN, etc. is considered, but Al 4 C 3 Therefore, there is a problem that the digestion resistance is poor when the bond is formed only by AlN.
本発明において解決すべき課題は、窒化硼素含有耐火物
において窒化硼素による優れた耐スポーリング性と耐食
性を全く阻害することがなく、また、他の特性に何等の
害を与えることのない耐火物組織を強化する添加材を見
いだすことにある。The problem to be solved by the present invention is that a refractory material containing no boron nitride excellent refractory spalling resistance and corrosion resistance in the boron nitride-containing refractory material, and does not impair any other characteristics. It is to find an additive that strengthens the structure.
本発明は、窒化硼素含有耐火物の強化結合材として金属
アルミニウムを用いるとき、特定割合の金属珪素を併用
することによって、金属アルミニウム単独添加の際の耐
消化性の問題を完全に解消できるという知見に基づいて
完成したものである。DISCLOSURE OF THE INVENTION The present invention finds that when metal aluminum is used as a reinforcing binder for a boron nitride-containing refractory, the problem of digestion resistance when metal aluminum alone is added can be completely eliminated by using metal silicon in a specific ratio together. It was completed based on.
すなわち、本発明は窒化硼素含有高耐用性耐火物の製造
方法は、六方晶系を主体とする窒化硼素粉末を10〜80重
量％と、TiN,TiB2及びTiCからなる群の中の１種もしく
は２種以上の粉末を10〜80重量％と、Al/Si比を8/1〜3/
1の範囲内で混合もしくは合金化したAl及びSiの粉末を1
0〜50重量％配合し、さらに結合剤として炭素生成物で
ある樹脂を加えた混合物を形成後、カーボン粉末を充填
したサヤ内に納めて焼成することを特徴とする。That is, the present invention provides a method for producing a boron nitride-containing highly durable refractory material, which comprises 10 to 80% by weight of boron nitride powder mainly composed of a hexagonal system and one of a group consisting of TiN, TiB 2 and TiC. Or 10 to 80% by weight of two or more kinds of powders, and Al / Si ratio of 8/1 to 3 /
1 Al and Si powder mixed or alloyed within the range of 1
It is characterized in that it is blended in an amount of 0 to 50% by weight and further a resin which is a carbon product is added as a binder to form a mixture, which is then placed in a sheath filled with carbon powder and baked.
併用する金属アルミニウムと金属珪素との比はAl/Siが8
/1より大きいとSi添加による消化防止効果がなく、3/1
より小さいと耐食性，耐スポーリング性が低下する。The ratio of metal aluminum and metal silicon used together is 8 for Al / Si.
If it is greater than 1/1, there is no digestive protection effect due to the addition of Si, and 3/1
If it is smaller, the corrosion resistance and spalling resistance decrease.
また、金属アルミニウムと金属珪素との添加総量が10重
量％より少ないと耐食性，強度の上昇が少なく、また、
50重量％より多いと耐スポーリング性が低下する。従っ
て、その添加量は10〜50重量％の範囲内である。If the total amount of aluminum metal and silicon added is less than 10% by weight, the corrosion resistance and strength will not increase, and
If it exceeds 50% by weight, the spalling resistance is deteriorated. Therefore, the amount added is in the range of 10 to 50% by weight.
窒化硼素含有耐火物中のBNの含有量は10重量％以下にな
ると添加効果がなくなり、耐スポーリング性が低下す
る。When the content of BN in the boron nitride-containing refractory is less than 10% by weight, the effect of addition is lost and the spalling resistance is deteriorated.
上記本発明におけるBN＋Al＋Siと組合せて、強度向上，
孔閉塞性向上のため使用できる骨材として種々の耐火材
を考え検討した。In combination with BN + Al + Si in the present invention, strength improvement,
Various refractory materials were considered and studied as aggregates that can be used to improve hole blockage.
まず、MgOでは熱膨張が大きく、Alから生成されるAl2O3
と反応して二次スピネル生成による焼成膨張が大きくな
り問題である。First, MgO has a large thermal expansion, and Al 2 O 3 generated from Al
This is a problem in that the calcination expansion due to the formation of the secondary spinel becomes large by reacting with.
ムライト，シリカ等のSiO2を多く含む骨材では、Alによ
るSiO2の還元作用により骨材をポーラス化させて強度の
低下，耐食性の低下をもたらす。In aggregates containing a large amount of SiO 2 , such as mullite and silica, the reduction action of Al 2 on SiO 2 makes the aggregate porous, resulting in reduced strength and reduced corrosion resistance.
また、TiO2の含有は、SiO2と同様に強度の低下，耐食性
の低下をもたらし好ましくない。Further, the inclusion of TiO 2 is not preferable because it causes a reduction in strength and a reduction in corrosion resistance as in the case of SiO 2 .
ジルコニア，ジルコン等のZrO2を含む骨材では、Alによ
るZrO2が還元し焼成時の分解により製造が困難となる。Aggregates containing ZrO 2 , such as zirconia and zircon, are difficult to manufacture because ZrO 2 is reduced by Al and decomposes during firing.
更に、Al2O3,スピネルでは強度向上には効果があるが、
各種ノズルに使用したときの孔閉塞防止には効果がな
い。Furthermore, although Al 2 O 3 and spinel are effective in improving strength,
It is not effective in preventing hole blockage when used in various nozzles.
Si3N4,SiCでは強度向上，孔閉塞防止には効果がある
が、耐食性が低下する。Although Si 3 N 4 and SiC are effective in improving strength and preventing pore blockage, they reduce corrosion resistance.
TiB2及びTiNはFe及びAlに濡れ難いが、骨材にこれを添
加すると強度向上，孔閉塞防止に効果があり、耐食性は
低下しない。TiCについてもTiNと同様の効果が認められ
る。しかし、TiNもしくはTiB2の１種もしくは２種以上
の粉末の添加量が10重量％より少ないところでは強度向
上の効果がない。Although TiB 2 and TiN are difficult to wet Fe and Al, addition of TiB 2 and TiN to the aggregate has the effect of improving strength and preventing pore blockage, and does not reduce corrosion resistance. The effect similar to that of TiN is recognized for TiC. However, when the addition amount of one or more powders of TiN or TiB 2 is less than 10% by weight, there is no effect of improving the strength.
配合物の混練についていえば、微粉ばかりの配合であ
り、造粒工程を必要とする。スパルタンミキサー，ヘン
シェルミキサー等の造粒ミキサーを使用するが、これら
に限定するものではない。As for the kneading of the blend, it is a blend of only fine powder and requires a granulation step. A granulating mixer such as a Spartan mixer or a Henschel mixer is used, but is not limited to these.
成形については、ラバープレスを品質均一性の点より主
に使用するが、形状等によりダイナミックプレス，オイ
ルプレス法も採用可能であり、プレス方法を限定するも
のではない。For molding, a rubber press is mainly used in terms of quality uniformity, but a dynamic press or an oil press method can be adopted depending on the shape and the like, and the pressing method is not limited.
焼成についていえば、BN,Al,Siを使用しており、当然の
ことながら酸化雰囲気下の焼成は不可である。窒化雰囲
気の焼成も可能であるが、強度的に20％程度の低下があ
り、雰囲気を保つため多量の窒素が必要であり、コスト
アップとなるため、カーボン粉中で焼成が望ましい。焼
成時のサヤ内の充填材としては、非酸化性雰囲気下に保
つものであればよく、コークス粉，鱗状黒鉛，黒鉛電極
切削屑等使用可能である。この際のカーボン粉末の種類
は何等限定されない。Speaking of firing, BN, Al, and Si are used, and naturally firing in an oxidizing atmosphere is not possible. Firing in a nitriding atmosphere is also possible, but the strength is reduced by about 20%, a large amount of nitrogen is required to maintain the atmosphere, and the cost increases, so firing in carbon powder is desirable. The filler in the sheath at the time of firing may be any that can be kept in a non-oxidizing atmosphere, and coke powder, scaly graphite, graphite electrode cutting waste, etc. can be used. At this time, the kind of carbon powder is not limited.
使用する窒化硼素は六方晶のものが良いが、立方晶，無
定形のものも板状でないため、耐スポーリング性の点に
注意すれば使用可能である。The boron nitride used is preferably a hexagonal crystal, but cubic and amorphous ones are also not plate-like and can be used if attention is paid to spalling resistance.
本発明方法によって製造された耐火物は、Al,Cu等非鉄
金属溶湯に接触する場所にも適用可能である。The refractory material produced by the method of the present invention can also be applied to a place in contact with molten metal such as Al and Cu.
第１表に示す配合物を造粒し、ラバープレス成形後1450
℃のコークス中で焼成した。1450 after granulating the compounds shown in Table 1 and rubber press molding
Calcinated in coke at ℃.
TiN添加量が10重量％より少ないと比較例1,2、実施例１
よりみて強度向上の効果は出ていないし、また、耐摩耗
性も劣る。実施例4,7から、TiNを80重量％まで添加して
も耐食性は低下していないことが判る。When the amount of TiN added is less than 10% by weight, Comparative Examples 1 and 2 and Example 1
From the viewpoint, the effect of improving the strength is not exhibited, and the wear resistance is also poor. From Examples 4 and 7, it can be seen that the corrosion resistance does not decrease even if TiN is added up to 80% by weight.
実施例４と比較例３より、BN添加量が10重量％より少な
いと耐スポーリング性が低下することが判る。From Example 4 and Comparative Example 3, it can be seen that the spalling resistance is deteriorated when the amount of BN added is less than 10% by weight.
比較例４と実施例５よりAl及びSiの添加量が10重量％よ
り少ないと強度が低下していることが判る。また、耐食
性も低下する。50重量％より多いと実施例６と比較例５
よりみて、耐摩耗性が低下する。From Comparative Example 4 and Example 5, it can be seen that the strength decreases when the added amount of Al and Si is less than 10% by weight. In addition, the corrosion resistance is also reduced. If it is more than 50% by weight, Example 6 and Comparative Example 5
As a result, wear resistance is reduced.
第２表に示すような配合を第１表と同一方法で製造し
た。A formulation as shown in Table 2 was prepared in the same manner as in Table 1.
Al/Si比が8/1より高いと消化し易くなる。3/1より低い
とSiの性質が強くなるためか、耐食性，耐スポーリング
性ともに低下する。If the Al / Si ratio is higher than 8/1, it will be easy to digest. If it is lower than 3/1, both the corrosion resistance and the spalling resistance will decrease, probably because the properties of Si become stronger.
比較例８と実施例11とを比較することによってわかるよ
うに、Al/Siの比が8/1より大きくなると耐消化性の低下
が著しくなる。As can be seen by comparing Comparative Example 8 and Example 11, when the Al / Si ratio is larger than 8/1, the digestion resistance is significantly lowered.
実施例14と比較例９よりAl/Siの比が3/1より小さくなる
と耐食性の低下が大きく、耐スポーリング性も低下す
る。As compared with Example 14 and Comparative Example 9, when the Al / Si ratio was smaller than 3/1, the corrosion resistance was significantly decreased and the spalling resistance was also decreased.
実施例２と実施例13よりAlとSiの粉末は、混合粉末で添
加するよりも、合金の状態で添加した方が若干良好なも
のが得られる。According to Examples 2 and 13, Al and Si powders are slightly better when added in the form of an alloy than when mixed powders are added.
第３表に示すような焼結体をTDノズル（口径＝12mm,肉
厚＝18mm,長さ＝150mm）形状に製作した。Sintered bodies as shown in Table 3 were manufactured in the shape of TD nozzle (bore diameter = 12 mm, wall thickness = 18 mm, length = 150 mm).
孔閉塞を起こしやすいAlキルド鋼と溶損を起こし易い未
脱酸鋼に分けて使用実績をとった。We have used it by dividing it into Al-killed steel that easily causes hole blockage and undeoxidized steel that easily causes melt damage.
比較例１よりみて、TiN添加なしでは耐孔閉塞性，耐摩
耗性ともに充分ではない。As seen from Comparative Example 1, the hole blocking resistance and the wear resistance are not sufficient without adding TiN.
比較例３よりみて、BN添加量が10重量％より少なくては
耐スポーリング性に問題を生じる。Compared to Comparative Example 3, if the amount of BN added is less than 10% by weight, a problem occurs in spalling resistance.
比較例４よりみて、Al,Siの添加量が10重量％より少な
いと耐食性低下の問題が生じる。Compared to Comparative Example 4, if the addition amount of Al and Si is less than 10% by weight, the problem of reduced corrosion resistance occurs.
比較例６よりみてアルミナ添加では第１表に示すよう
に、耐食性，耐摩耗性，強度は問題ないが、耐孔閉塞性
が低下する。As seen from Comparative Example 6, when alumina is added, as shown in Table 1, corrosion resistance, wear resistance, and strength are not a problem, but the hole blocking resistance is lowered.
比較例７よりみて、Si3N4添加では第１表に示すよう
に、耐摩耗性，強度は問題なく、耐孔閉塞性も問題ない
が、耐食性低下の問題が生じる。As seen from Comparative Example 7, when Si 3 N 4 is added, as shown in Table 1, there are no problems in wear resistance and strength, there is no problem in hole blocking resistance, but there is a problem of reduced corrosion resistance.
第１表及び第３表の実施例2,8,9,10よりみて、TiB2,及
びTiCはTiNと同等に使用可能であることがわかった。From Examples 2 , 8, 9 and 10 in Tables 1 and 3, it was found that TiB 2 and TiC can be used similarly to TiN.
〔発明の効果〕 本発明の方法によれば、BN−Al−Si系還元焼成品の欠点
である強度，耐摩耗性の不足の問題をTiNもしくはTiB2
もしくはTiCを10重量％以上添加することで解消し、耐
食性，耐スポーリング性を低下させることなく耐孔閉塞
性をさらに向上させることができる。 [Advantages of the Invention] According to the method of the present invention, TiN or TiB 2
Alternatively, it can be solved by adding TiC in an amount of 10% by weight or more, and the pore blocking resistance can be further improved without lowering the corrosion resistance and the spalling resistance.
さらに、添加するAl/Si比を8/1〜3/1の範囲内にするこ
とにより焼結体の耐消化性，耐食性，耐スポーリング性
のバランスをとることに成功したものである。Furthermore, by setting the Al / Si ratio to be added within the range of 8/1 to 3/1, the sintered body was successfully balanced in digestion resistance, corrosion resistance, and spalling resistance.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 35/58 １０５ Ｌ Ｕ Ｃ０４Ｂ 35/56 Ｓ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location C04B 35/58 105 L U C04B 35/56 S
Claims (1)
80重量％と、TiN,TiB2及びTiCからなる群の中の１種も
しくは２種以上の粉末を10〜80重量％と、Al/Si比を8/1
〜3/1の範囲内で混合もしくは合金化したAl及びSiの粉
末を10〜50重量％配合し、さらに結合剤として炭素生成
物である樹脂を加えた混合物を形成後、カーボン粉末を
充填したサヤ内に納めて焼成することを特徴とする窒化
硼素含有高耐用性耐火物の製造方法。1. Boron nitride powder mainly composed of hexagonal system
80% by weight, 10 to 80% by weight of one or more powders from the group consisting of TiN, TiB 2 and TiC, and an Al / Si ratio of 8/1
〜3 / 1 mixed or alloyed Al and Si powders 10 to 50% by weight, and after adding a resin which is a carbon product as a binder to form a mixture, filled with carbon powder A method for producing a highly durable refractory material containing boron nitride, which is characterized by placing the material in a sheath and firing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61220987A JPH0753609B2 (en) | 1986-09-18 | 1986-09-18 | Method for producing highly durable refractory material containing boron nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61220987A JPH0753609B2 (en) | 1986-09-18 | 1986-09-18 | Method for producing highly durable refractory material containing boron nitride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6374965A JPS6374965A (en) | 1988-04-05 |
| JPH0753609B2 true JPH0753609B2 (en) | 1995-06-07 |
Family
ID=16759694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61220987A Expired - Lifetime JPH0753609B2 (en) | 1986-09-18 | 1986-09-18 | Method for producing highly durable refractory material containing boron nitride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753609B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2742801B2 (en) * | 1988-10-19 | 1998-04-22 | 株式会社香蘭社 | Method for producing erosion resistant BN ceramics |
| CN113149658B (en) * | 2021-04-28 | 2023-02-07 | 武汉理工大学 | A kind of titanium nitride based composite ceramic material and preparation method thereof |
-
1986
- 1986-09-18 JP JP61220987A patent/JPH0753609B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6374965A (en) | 1988-04-05 |
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