JPH01145370A - Production of carbonaceous material - Google Patents
Production of carbonaceous materialInfo
- Publication number
- JPH01145370A JPH01145370A JP62302092A JP30209287A JPH01145370A JP H01145370 A JPH01145370 A JP H01145370A JP 62302092 A JP62302092 A JP 62302092A JP 30209287 A JP30209287 A JP 30209287A JP H01145370 A JPH01145370 A JP H01145370A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- furan resin
- forming
- molding
- binder
- 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.)
- Pending
Links
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000007849 furan resin Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011271 tar pitch Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005087 graphitization Methods 0.000 abstract description 2
- 229910021382 natural graphite Inorganic materials 0.000 abstract description 2
- 239000006253 pitch coke Substances 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000011300 coal pitch Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、炭素材の密度及び機械的強度を大きくする製
造法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improved manufacturing method for increasing the density and mechanical strength of a carbon material.
（従来の技術）
炭素材は、コークス粉、黒鉛粉、カーボンブラック等の
炭素骨材に、タールピッチ、コールタール等の結合材を
加え（更に用途に応じ二硫化モリブデン等の固体潤滑材
、炭化珪素のような研摩剤などを添加することがある）
、混練して骨材粒子の表面を結合材で包んだ後、粉砕し
て成形粉としく押出成形の場合にこの工程を省略するこ
ともあるが・通常は均一な炭素材を得るために粉砕及び
混合を行う）、成形粉を型込め、押出し、静水加圧成形
等により所定の形状に成形し、非酸化性の雰囲気下約１
０００℃で焼成し、更に必要に応じ２５００″Ｃ以上の
温度で黒鉛化することによって得られる。(Prior technology) Carbon materials are made by adding binders such as tar pitch and coal tar to carbon aggregates such as coke powder, graphite powder, and carbon black (and, depending on the application, solid lubricants such as molybdenum disulfide, carbon (Abrasives such as silicon may be added.)
After kneading and wrapping the surface of the aggregate particles with a binder, they are crushed to form a molding powder. This step is sometimes omitted in the case of extrusion molding, but it is usually crushed to obtain a uniform carbon material. and mixing), mold the molded powder into a predetermined shape by molding, extrusion, isostatic pressure molding, etc., and store it in a non-oxidizing atmosphere for about 1 hour.
It can be obtained by firing at 000°C and further graphitizing at a temperature of 2500"C or higher if necessary.
（発明が解決しようとする問題点）
しかしながら、前記した成形粉は結合材成分を含み２通
常１００メツシュ以下に粉砕されているから、成形粉の
流動性が悪く、従って圧力伝達が悪く、成形体に密度差
を生じ（周辺部が大きく中心部が小さい）、その結果炭
素材の特性のばらつきが大きくなり易い欠点がある。流
動性を改善するために、成形粉を造粒して大きな二次粒
子を形成する方法があるが、特性のばらつきは改善され
るが、密度及び機械的強度を大きくすることはできない
。(Problems to be Solved by the Invention) However, since the above-mentioned molding powder contains a binder component and is usually pulverized to 100 meshes or less, the fluidity of the molding powder is poor, and therefore pressure transmission is poor, resulting in a molded product. There is a disadvantage that a difference in density occurs between the carbon materials (larger at the periphery and smaller at the center), and as a result, variations in the properties of the carbon material tend to increase. In order to improve fluidity, there is a method of granulating molded powder to form large secondary particles, but although this improves the variation in properties, it cannot increase the density and mechanical strength.
本発明は、成形粉同士のすべりを改善し、密度及び強度
の向上し、た炭素材の製造法を提供することを目的とす
る。An object of the present invention is to provide a method for producing a carbon material that improves the slippage between molded powders and has improved density and strength.
（問題点を解決するための手段）
本発明者らは、成形粉に液状のフラン樹脂を添加するこ
とにより成形粉同士のすべりがよくなり。(Means for Solving the Problems) The present inventors added a liquid furan resin to the molding powder to improve the sliding between the molding powders.
上記目的を達成し得ることを見出し本発明に到達した。The inventors have discovered that the above object can be achieved and have arrived at the present invention.
本発明は、炭素骨材と結合材とを混練後粉砕し九成形粉
に液状のフラン樹脂を添加混合し１次いで成形、焼成、
更に必要に応じて黒鉛化することを特徴とする炭素材の
製造法に関する。The present invention involves kneading and pulverizing carbon aggregates and binders, adding and mixing liquid furan resin to molding powder, and then molding, firing,
Furthermore, the present invention relates to a method for producing a carbon material, which is characterized in that it is graphitized if necessary.
本発明において、炭素骨材はピッチコークス。In the present invention, the carbon aggregate is pitch coke.
人造黒鉛、天然黒鉛、カーボンブラック等の粉末であり
９粒度に制限は々いが１００メツシユ以下が好ましい。It is a powder of artificial graphite, natural graphite, carbon black, etc., and although the particle size is limited to 9 particles, it is preferably 100 mesh or less.
結合材はタールピッチ、コールタール、熱硬化性樹脂等
の炭化率の大きなものを用いる。炭素骨材と結合材との
混練は公知の方法による。混練物の粉砕も公知の方法に
より、成形粉の粒度は炭素材の密度及び強度を高くする
ために１００メツシユ以下が好ましい。The binding material used is one with a high carbonization rate, such as tar pitch, coal tar, or thermosetting resin. The carbon aggregate and the binder are kneaded by a known method. The kneaded material is pulverized by a known method, and the particle size of the molded powder is preferably 100 mesh or less in order to increase the density and strength of the carbon material.
液状の７ラン樹脂の種類は特に制限はないが。There are no particular restrictions on the type of liquid 7-run resin.
フルフリルアルコール樹脂が最良の結果を得ている。フ
ラン樹脂の添加量は成形粉に対して１〜５重量部が好ま
しく、２〜４重量部が最好適である。Furfuryl alcohol resin has yielded the best results. The amount of furan resin added is preferably 1 to 5 parts by weight, most preferably 2 to 4 parts by weight, based on the molding powder.
少なすぎても多すぎても密度及び強度を向上する効果が
ない。成形粉に液状のフラン樹脂を添加混合する手段は
特に制限はない。通常、混合機に成形粉及び液状のフラ
ン樹脂を入れて混合し、成形時における成形粉同士の摩
擦を小さくするために。If it is too small or too large, there is no effect of improving density and strength. There is no particular restriction on the means for adding and mixing the liquid furan resin to the molding powder. Usually, molding powder and liquid furan resin are mixed in a mixer to reduce the friction between the molding powder during molding.
成形粉各校子の表面にフラン樹脂を付着させる。Apply furan resin to the surface of each molded powder.
成形、焼成及び黒鉛化は公知の方法による。Molding, firing and graphitization are carried out by known methods.
（実施例）
１００メツシユ以下に粉砕した石炭系ピッチコークス６
０重量部及びタールピッチ（ＪＩＳ Ｋ２４３９一般用
中ピッチ、軟化点８５℃）４０重量部を双腕型ニーダ−
に入れ２００℃で３時間加熱混練を行った。混練物を１
００メツシユ以下に粉砕した粉末１００重量部にフルフ
リルアルコール初期縮合物（日立化成工業製、商品名ヒ
タフランＶＦ３０２）を重量でそれぞれ１部、２部、３
部及び５部添加したものをヘンシェルミキサーに入れ、
２分間運転、１分間休止を１０回繰返して混合した。混
合物はゴム型に入れ、ラバープレスにより１．２ ｔ
／ｃｍ”の成形圧で１５０ｍｍφＸ１５０ｏｎＨの成形
体とし、これを焼成炉に入れて１０００℃で焼成し２次
いで電気炉により２７００℃で黒鉛化して炭素材とした
。比較例としてＶＦ３０２を添加しない成形粉を同様に
して成形、焼成及び黒鉛化して炭素材を得た。得られた
炭素材の物理特性を成形体の密度と共に第１表に示す。(Example) Coal-based pitch coke 6 crushed to 100 mesh or less
0 parts by weight and 40 parts by weight of tar pitch (JIS K2439 general medium pitch, softening point 85°C) in a double-arm kneader.
The mixture was heated and kneaded at 200° C. for 3 hours. 1 of the kneaded material
Furfuryl alcohol initial condensate (manufactured by Hitachi Chemical Co., Ltd., trade name Hitafuran VF302) was added to 100 parts by weight of powder pulverized to 0.00 mesh or less, 1 part, 2 parts, and 3 parts by weight, respectively.
1 part and 5 parts added to a Henschel mixer,
Mixing was repeated 10 times by running for 2 minutes and pausing for 1 minute. The mixture was placed in a rubber mold and pressed into a 1.2 ton press using a rubber press.
A molded body of 150 mmφ x 150 onH was formed with a molding pressure of 1.5 cm", which was placed in a firing furnace and fired at 1000°C, and then graphitized at 2700°C in an electric furnace to obtain a carbon material. As a comparative example, a molded powder without VF302 added was used. A carbon material was obtained by molding, firing and graphitizing in the same manner.The physical properties of the obtained carbon material are shown in Table 1 along with the density of the compact.
第１表 注）表中の特性は５個の平均値である。Table 1 Note) The characteristics in the table are the average values of 5.
８３１表から明らかなように、成形粉にフラン樹脂を添
加混合したものは成形が円ＩＷＶＣなされるので成形体
の密度が高く、またこれに比例して炭素材のかさ密度及
び曲げ強さが大きくなっている。As is clear from Table 831, the molded product obtained by adding furan resin to the molding powder is molded using circular IWVC, so the density of the molded product is high, and the bulk density and bending strength of the carbon material are proportionally high. It has become.
特にａＭｉ部添加したものは無添加のものに比べて１曲
げ強さが約１０％高い値を示している。In particular, the one-bending strength of the material containing aMi added is about 10% higher than that of the material containing no additive.
（発明の効果）
本発明によれば、かさ密度及び曲げ強さの向上した炭素
材が得られる。(Effects of the Invention) According to the present invention, a carbon material with improved bulk density and bending strength can be obtained.
代理人 弁理士 若 林 邦 彦
手続補正書（自発）
昭和６３年３月２４日
昭和６２年特許願第３０２０９２号
２、発明の名称
炭素材の製造法
３、補正をする者
事件との関係 特許出願人
名 称 （４４５１日窟化成工業株式会社４、代 理
人
５、補正の対象
明細書の発明の詳細な説明の欄
６、補正の内容Agent Patent Attorney Kunihiko Wakabayashi Procedural amendment (voluntary) March 24, 1988 Patent Application No. 302092 of 1988 2 Title of invention Method for manufacturing carbon material 3 Relationship with the case of the person making the amendment Patent Applicant Name (4451 Nichiku Kasei Kogyo Co., Ltd. 4, Agent)
Person 5, Detailed explanation of the invention in the specification subject to amendment 6, Contents of amendment
Claims (1)
のフラン樹脂を添加混合し，次いで成形，焼成，更に必
要に応じて黒鉛化することを特徴とする炭素材の製造法
。1. A method for producing a carbon material, which comprises adding and mixing a liquid furan resin to a molding powder obtained by kneading and pulverizing a carbon aggregate and a binder, followed by molding, firing, and graphitizing if necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62302092A JPH01145370A (en) | 1987-11-30 | 1987-11-30 | Production of carbonaceous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62302092A JPH01145370A (en) | 1987-11-30 | 1987-11-30 | Production of carbonaceous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01145370A true JPH01145370A (en) | 1989-06-07 |
Family
ID=17904831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62302092A Pending JPH01145370A (en) | 1987-11-30 | 1987-11-30 | Production of carbonaceous material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01145370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009346A1 (en) * | 1989-02-07 | 1990-08-23 | Koa Oil Company, Limited | Production of carbonaceous molding having excellent compressive modulus |
-
1987
- 1987-11-30 JP JP62302092A patent/JPH01145370A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009346A1 (en) * | 1989-02-07 | 1990-08-23 | Koa Oil Company, Limited | Production of carbonaceous molding having excellent compressive modulus |
| US5190696A (en) * | 1989-02-07 | 1993-03-02 | Koa Oil Company, Limited | Process for preparation of carbonaceous molded body having excellent compressive elasticity |
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