JP2686485B2 - Carbon mold for hot pressing and manufacturing method thereof - Google Patents
Carbon mold for hot pressing and manufacturing method thereofInfo
- Publication number
- JP2686485B2 JP2686485B2 JP63178784A JP17878488A JP2686485B2 JP 2686485 B2 JP2686485 B2 JP 2686485B2 JP 63178784 A JP63178784 A JP 63178784A JP 17878488 A JP17878488 A JP 17878488A JP 2686485 B2 JP2686485 B2 JP 2686485B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- hot pressing
- graphite material
- carbon mold
- carbon
- 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
- 229910052799 carbon Inorganic materials 0.000 title claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 22
- 238000007731 hot pressing Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 239000007770 graphite material Substances 0.000 claims description 19
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 16
- 229920001187 thermosetting polymer Polymers 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000005011 phenolic resin Substances 0.000 claims description 10
- 239000007849 furan resin Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 238000003763 carbonization Methods 0.000 claims description 3
- 125000004970 halomethyl group Chemical group 0.000 claims description 3
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 3
- 239000003377 acid catalyst Substances 0.000 claims description 2
- 150000001491 aromatic compounds Chemical class 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000013007 heat curing Methods 0.000 claims 1
- 125000003367 polycyclic group Chemical group 0.000 claims 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 5
- 229920001568 phenolic resin Polymers 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- -1 polycyclic aromatic compound Chemical class 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VPUGDVKSAQVFFS-UHFFFAOYSA-N coronene Chemical compound C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ZZHIDJWUJRKHGX-UHFFFAOYSA-N 1,4-bis(chloromethyl)benzene Chemical compound ClCC1=CC=C(CCl)C=C1 ZZHIDJWUJRKHGX-UHFFFAOYSA-N 0.000 description 1
- BHCGGVIVFXWATI-UHFFFAOYSA-N 1-[4-(1-hydroxyethyl)phenyl]ethanol Chemical compound CC(O)C1=CC=C(C(C)O)C=C1 BHCGGVIVFXWATI-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- XMUZQOKACOLCSS-UHFFFAOYSA-N [2-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=CC=C1CO XMUZQOKACOLCSS-UHFFFAOYSA-N 0.000 description 1
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 description 1
- ITOMYMKLGHLERE-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1.OCC1=CC=C(CO)C=C1 ITOMYMKLGHLERE-UHFFFAOYSA-N 0.000 description 1
- CWRYPZZKDGJXCA-UHFFFAOYSA-N acenaphthene Chemical compound C1=CC(CC2)=C3C2=CC=CC3=C1 CWRYPZZKDGJXCA-UHFFFAOYSA-N 0.000 description 1
- 125000004054 acenaphthylenyl group Chemical group C1(=CC2=CC=CC3=CC=CC1=C23)* 0.000 description 1
- HXGDTGSAIMULJN-UHFFFAOYSA-N acetnaphthylene Natural products C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、セラミックの焼結など高温、高圧下で使
用されるホットプレス用カーボン鋳型に関し、とくに耐
酸化特性が著しく改善されたホットプレス用カーボン鋳
型に関する。Description: TECHNICAL FIELD The present invention relates to a carbon mold for hot pressing used under high temperature and high pressure such as sintering of ceramics, especially for hot pressing whose oxidation resistance is remarkably improved. Regarding carbon molds.
（従来の技術） 従来より、ホットプレス装置には、セラミックや金
属、あるいはこれらの複合材料等の被焼結体を粉体、あ
るいは仮成形体の状態で充填する筒形状のカーボン鋳型
が使用されている。(Prior Art) Conventionally, a hot press machine has used a cylindrical carbon mold for filling a sintered body such as ceramic, metal, or a composite material thereof in the form of powder or a preformed body. ing.
このカーボン鋳型は、1000℃以上の高温下で使用され
るため、鋳型表面の酸化消耗は避けられず、このような
酸化消耗を防止するために、従来は、カーボン鋳型の黒
鉛材表面を、ZrO2、Al2O3、SiC等の高融点材料で被膜す
るなどの処理が行なわれている。Since this carbon mold is used at a high temperature of 1000 ° C. or higher, oxidative consumption of the mold surface is unavoidable.In order to prevent such oxidative consumption, conventionally, the graphite material surface of the carbon mold is treated with ZrO 2. Processing such as coating with a high melting point material such as 2 , Al 2 O 3 , or SiC is performed.
（発明が解決しようとする課題） しかしながら、このような高融点材料の被膜が形成さ
れたカーボン鋳型では、黒鉛材と被膜との熱膨張係数の
違いから、高温、常温の間の加熱冷却のくり返しによる
熱衝撃によって被膜が剥れやすく、耐久力に弱い欠点が
あった。(Problems to be solved by the invention) However, in a carbon mold in which a coating film of such a high melting point material is formed, due to the difference in the thermal expansion coefficient between the graphite material and the coating film, heating and cooling are repeated between high temperature and room temperature. There was a drawback that the coating was easily peeled off due to the thermal shock due to and the durability was weak.
このため、被膜の剥離した部分からの酸化消耗が進行
し、カーボン鋳型は早期に使用できなくなるという問題
があった。Therefore, there is a problem that the carbon mold cannot be used early because the oxidation consumption from the peeled portion of the coating progresses.
この発明は、このような事情に鑑みなされたものであ
り、その製造工程途中の焼成時にクラックの発生を心配
する必要がなく、完成後においては、耐酸化特性が著し
く改善され、酸化消耗を防止して長期に使用することが
できるホットプレス用カーボン鋳型及びその製造方法を
提供しようとするものである。The present invention has been made in view of such circumstances, and there is no need to worry about the occurrence of cracks during firing during the manufacturing process, and after completion, the oxidation resistance characteristics are remarkably improved and oxidation consumption is prevented. It is intended to provide a carbon mold for hot pressing which can be used for a long time and a method for producing the same.
（課題を解決するための手段及び作用） すなわち、本発明は、カーボン鋳型の表面に、フェノ
ール樹脂、フラン樹脂、ジビニルベンゼン樹脂、フェノ
ール樹脂、フラン樹脂、ジビニルベンゼン樹脂、また
は、縮合多環芳香族化合物と、ヒドロキシメチル基、ハ
ロメチル基のいずれか少なくとも一種の基を二個以上有
する一環または二環以上の芳香族から成る芳香族架橋剤
と、酸触媒とを組合せて成る組成物（以下、コプナ樹脂
という）の中から選ばれる一種または二種以上の熱硬化
性樹脂由来の炭素による被膜を形成することにより、不
浸透性で緻密化された表面をつくり、高温下での酸化消
耗を防ぐようにしたホットプレス用カーボン鋳型及びそ
の製造方法である。(Means and Actions for Solving the Problem) That is, the present invention provides a phenolic resin, a furan resin, a divinylbenzene resin, a phenolic resin, a furan resin, a divinylbenzene resin, or a condensed polycyclic aromatic compound on the surface of a carbon template. A composition comprising a compound, an aromatic cross-linking agent consisting of one or more aromatics having at least one group selected from at least one of a hydroxymethyl group and a halomethyl group, and an acid catalyst (hereinafter referred to as "copna"). By forming a film made of carbon derived from one or more thermosetting resins selected from among (resins), it creates an impermeable and densified surface and prevents oxidative wear at high temperatures. And a method for producing the same.
このようなホットプレス用カーボン鋳型の被膜は、鋳
型の基材と同質の黒鉛であるため、加熱冷却のくり返し
による熱衝撃によっても剥れることがない。Since the coating film of such a carbon mold for hot pressing is graphite of the same quality as the base material of the mold, it is not peeled off by thermal shock due to repeated heating and cooling.
前記熱硬化性樹脂としては、フェノール樹脂、フラン
樹脂、ジビニルベンゼン樹脂、フェノール樹脂、フラン
樹脂、ジビニルベンゼン樹脂、またはコプナ樹脂のよう
に、炭素化時における流動、発泡が小さく、炭素化収率
の高いものが必要である。その理由は、前記熱硬化性樹
脂が、フェノール樹脂、フラン樹脂、ジビニルベンゼン
樹脂、フェノール樹脂、フラン樹脂、ジビニルベンゼン
樹脂、またはコプナ樹脂のように、炭素化時における流
動、発泡が小さく、炭素化収率の高いものであれば、そ
の炭素化時にクラックの発生を心配する必要がないから
である。Examples of the thermosetting resin include phenolic resin, furan resin, divinylbenzene resin, phenolic resin, furan resin, divinylbenzene resin, and copuna resin. You need something expensive. The reason is that the thermosetting resin is a resin such as a phenol resin, a furan resin, a divinylbenzene resin, a phenol resin, a furan resin, a divinylbenzene resin, or a copuna resin, which has a small flow and foaming at the time of carbonization, This is because if the yield is high, there is no need to worry about the occurrence of cracks during carbonization.
とくに、炭素系若しくは石油系の重質油、タール、ピ
ッチ、あるいはナフタレン、アントラセン、フェナント
レン、ピレン、クリセン、ナフタセン、アセナフテン、
アセナフチレン、ペリレン、コロネン及びこれらを主骨
格とする誘導体の中から選ばれる一種又は二種以上の混
合物等の縮合多環芳香族化合物を、ヒドロキシメチル
基、ハロメチル基のいずれか少なくとも一種の基を二個
以上有する一環または二環以上の芳香環から成る芳香族
化合物、例えばｐ−キシリレンジクロライド、ｐ−キシ
リレングリコール（1,4−ベンゼンジメタノール）、ジ
メチル−ｐ−キシリレングリコール、ジメチル−ｍ−キ
シリレングリコール等で架橋させた、コプナ樹脂が良好
な結果を得ることができる。In particular, carbon-based or petroleum-based heavy oil, tar, pitch, or naphthalene, anthracene, phenanthrene, pyrene, chrysene, naphthacene, acenaphthene,
A fused polycyclic aromatic compound such as one or a mixture of two or more selected from acenaphthylene, perylene, coronene, and derivatives having these as the main skeletons is substituted with at least one group selected from a hydroxymethyl group and a halomethyl group. Aromatic compounds having one or more aromatic rings having one or more rings, for example, p-xylylene dichloride, p-xylylene glycol (1,4-benzenedimethanol), dimethyl-p-xylylene glycol, dimethyl-m -Copna resin crosslinked with xylylene glycol or the like can give good results.
この熱硬化性樹脂は、融点以上の温度に加熱溶融させ
た液状物、若しくは溶剤に溶解させた液状物にして、等
方性黒鉛材に塗布する。この熱硬化性樹脂の等方性黒鉛
材への塗布は、刷毛塗り、ロールコーター、スプレー、
あるいは浸漬等の方法により行なう。This thermosetting resin is applied to the isotropic graphite material in the form of a liquid material that is heated and melted at a temperature equal to or higher than the melting point or a liquid material that is dissolved in a solvent. Application of this thermosetting resin to an isotropic graphite material is performed by brush coating, roll coater, spray,
Alternatively, it is performed by a method such as immersion.
この熱硬化性樹脂の硬化は、100℃〜400℃の温度範囲
内で行なうのが好ましい。また、この熱硬化性樹脂の焼
成は、1000℃付近の温度で、熱硬化性樹脂を一度炭素化
した後、1800℃以上の温度で再度熱処理して行うことが
好ましい。これにより、等方性黒鉛材の表面に熱硬化性
樹脂由来の炭素による被膜が形成される。It is preferable to cure the thermosetting resin within a temperature range of 100 ° C to 400 ° C. Further, it is preferable that the thermosetting resin is fired by once carbonizing the thermosetting resin at a temperature of around 1000 ° C. and then heat-treating it again at a temperature of 1800 ° C. or higher. As a result, a film of carbon derived from the thermosetting resin is formed on the surface of the isotropic graphite material.
そして、この熱硬化性樹脂由来の炭素による被膜を形
成すべき黒鉛材は、等方性のものである必要がある。そ
の理由は、一般に、等方性黒鉛材はその熱膨張係数の異
方比が1.25以下であるので、室温〜1800℃の温度範囲
で、表面に熱硬化性樹脂由来の炭素による被膜を形成す
るとき、あるいは形成したときに、この被膜にクラック
を生じさせないからである。The graphite material on which the coating film of carbon derived from the thermosetting resin should be formed needs to be isotropic. The reason is that, in general, the isotropic graphite material has an anisotropic ratio of thermal expansion coefficient of 1.25 or less, so that a film of carbon derived from a thermosetting resin is formed on the surface in the temperature range of room temperature to 1800 ° C. This is because cracks do not occur in this coating when or when formed.
（実施例） 以下、実施例について説明する。(Example) Hereinafter, an example is described.
実施例１ 外径1000mmΦ、内径50mmΦ、高さ100mmの等方性黒鉛
材を用意した。熱硬化性樹脂として、軟化点80℃の石油
系ピッチのベンゼン可溶分（平均分子量340）とｐ−キ
シリレングリコールをモル比で1:2の割合で混合し、そ
こに1wt％のｐ−トルエンスルホン酸を加えた混合物を
用い、これを130℃で40分間反応させた。Example 1 An isotropic graphite material having an outer diameter of 1000 mmΦ, an inner diameter of 50 mmΦ and a height of 100 mm was prepared. As a thermosetting resin, a benzene-soluble component (average molecular weight 340) of petroleum pitch having a softening point of 80 ° C and p-xylylene glycol were mixed at a molar ratio of 1: 2, and 1 wt% of p- was added thereto. This was reacted at 130 ° C. for 40 minutes using a mixture containing toluenesulfonic acid.
この反応生成物を130℃で溶融させ、前記等方性黒鉛
材に塗りつけ、180℃で硬化させた後、再度塗布して硬
化処理をし、1900℃で焼成てサンプルを得た。The reaction product was melted at 130 ° C., applied on the isotropic graphite material, cured at 180 ° C., then re-applied and cured, and baked at 1900 ° C. to obtain a sample.
前記等方性黒鉛材の無処理のものを比較例として、空
気中700℃の焼成炉内に置き、重量減少を測定した。こ
の結果、第１図のグラフのようになった。A non-treated isotropic graphite material was placed as a comparative example in a firing furnace at 700 ° C. in air, and the weight reduction was measured. As a result, the graph shown in FIG. 1 is obtained.
実施例２ 外径420mmΦ、内径275mmΦ、高さ700mmの等方性黒鉛
材を用意した。実施例１で使用した反応生成物を130℃
で溶融させ、前記等方性黒鉛材にスプレーで塗布し、18
0℃で硬化させた後、再度塗布して硬化処理をし、1900
℃で熱処理してサンプル１を得た。また、フェノール樹
脂にコプナ樹脂を加えた混合物を130℃で溶融させ、前
記等方性黒鉛材にスプレーで塗布し、180℃で硬化させ
た後、再度塗布して熱硬化処理をし、1900℃で熱処理し
てサンプル２を得た。また、フェノール樹脂130℃で溶
融させ、前記等方性黒鉛材にスプレーで塗布し、180℃
で硬化させた後、再度塗布して硬化処理をし、1900℃で
熱処理してサンプル３を得た。Example 2 An isotropic graphite material having an outer diameter of 420 mmΦ, an inner diameter of 275 mmΦ and a height of 700 mm was prepared. The reaction product used in Example 1 was heated to 130 ° C.
Melt by spraying on the isotropic graphite material,
After curing at 0 ° C, reapply and cure, 1900
Sample 1 was obtained by heat treatment at ℃. Also, a mixture of phenolic resin and coplanar resin is melted at 130 ° C, spray-applied to the isotropic graphite material, cured at 180 ° C, then re-applied and heat-cured at 1900 ° C. Sample 2 was obtained by heat treatment. In addition, the phenol resin is melted at 130 ℃, sprayed on the above isotropic graphite material, and heated at 180 ℃.
After being cured by, the coating was applied again to perform curing treatment, and heat treatment was performed at 1900 ° C. to obtain Sample 3.
前記等方性黒鉛材の無処理のものを比較例として、大
気型ホップレス炉で使用した結果、寿命は第１表のよう
になった。As a result of using an untreated isotropic graphite material as a comparative example in an atmospheric hopless furnace, the life was as shown in Table 1.
実施例１で使用した熱硬化性樹脂を溶剤に溶解させた
液状物にして50mm×50mm×5mmの等方性黒鉛材に塗布
し、180℃で硬化させた後、再度塗布して硬化処理を
し、1900℃で熱処理してサンプルを得た。The thermosetting resin used in Example 1 was dissolved in a solvent to form a liquid, which was applied to an isotropic graphite material having a size of 50 mm × 50 mm × 5 mm, cured at 180 ° C., and then applied again for curing treatment. Then, heat treatment was performed at 1900 ° C. to obtain a sample.
前記等方性黒鉛材の無処理のものを比較例として、密
閉した１気圧ヘリウムガス管流路（１cm2）でガスの透
過度を測定した結果、第２表のようになった。Table 2 shows the results of measuring the gas permeability in a closed 1 atm helium gas pipe channel (1 cm 2 ) using a non-treated isotropic graphite material as a comparative example.
（発明の効果） 以上、説明したように、本発明のホットプレス用カー
ボン鋳型は、その製造工程途中の焼成時にクラックの発
生を心配する必要がなく、完成後においては、表面に緻
密な被膜が形成されているめ、不浸漬性が十分確保さ
れ、酸化消耗を著しく減少させ、長期に使用することが
できる。 (Effects of the Invention) As described above, the carbon mold for hot pressing of the present invention does not need to worry about the occurrence of cracks during firing during the manufacturing process, and after completion, a dense film is formed on the surface. Since it is formed, the non-immersion property is sufficiently secured, the oxidative consumption is remarkably reduced, and it can be used for a long time.
また、本発明の製造方法により、焼成時にクラックの
発生を招くことなく、炭素被膜を有するホットプレス用
カーボン鋳型を安定して得ることができる。Further, according to the manufacturing method of the present invention, a carbon mold for hot pressing having a carbon coating can be stably obtained without causing cracks during firing.
第１図は実施例１における重量減少の測定結果を示すグ
ラフである。FIG. 1 is a graph showing the measurement results of weight loss in Example 1.
Claims (2)
炭素による被膜が形成されて成り、 前記熱硬化性樹脂は、フェノール樹脂、フラン樹脂、ジ
ビニルベンゼン樹脂、または、縮合多環芳香族化合物
と、ヒドロキシメチル基、ハロメチル基のいずれか少な
くとも一種の基を二個以上有する一環または二環以上の
芳香環から成る芳香族架橋剤と、酸触媒とを組合せて成
る組成物の中から選ばれる一種または二種以上であるこ
とを特徴とするホットプレス用カーボン鋳型。1. A film of carbon derived from a thermosetting resin is formed on the surface of an isotropic graphite material, and the thermosetting resin is a phenol resin, a furan resin, a divinylbenzene resin, or a condensed polycyclic ring. A composition comprising a combination of an aromatic compound, an aromatic cross-linking agent having one or two or more aromatic rings having at least one group of at least one of a hydroxymethyl group and a halomethyl group, and an acid catalyst A carbon mold for hot pressing, which is one kind or two or more kinds selected from the following.
ェノール樹脂、フラン樹脂、ジビニルベンゼン樹脂、ま
たは、コプナ樹脂の中から選ばれる一種または二種以上
を、はけ塗り、吹き付け、ロールコート等の方法によっ
て塗布後、乾燥、熱硬化し、さらに非酸化性雰囲気中で
焼成、炭素化し、1800℃以上の温度で熱処理することを
特徴とするホットプレス用カーボン鋳型の製造方法。2. An isotropic graphite material processed into a predetermined shape is brushed or sprayed with one or more selected from a phenol resin, a furan resin, a divinylbenzene resin, or a copuna resin, A method for producing a carbon mold for hot pressing, which comprises coating by a method such as roll coating, followed by drying, heat curing, firing in a non-oxidizing atmosphere, carbonization, and heat treatment at a temperature of 1800 ° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63178784A JP2686485B2 (en) | 1988-07-18 | 1988-07-18 | Carbon mold for hot pressing and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63178784A JP2686485B2 (en) | 1988-07-18 | 1988-07-18 | Carbon mold for hot pressing and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0230702A JPH0230702A (en) | 1990-02-01 |
| JP2686485B2 true JP2686485B2 (en) | 1997-12-08 |
Family
ID=16054579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63178784A Expired - Lifetime JP2686485B2 (en) | 1988-07-18 | 1988-07-18 | Carbon mold for hot pressing and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2686485B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5729407A (en) * | 1980-07-29 | 1982-02-17 | Ibigawa Electric Ind Co Ltd | Graphitic hot press mold |
| JPS6355183A (en) * | 1986-08-26 | 1988-03-09 | 電気化学工業株式会社 | Manufacture of glassy carbon coated body |
| JPS63135783A (en) * | 1986-11-27 | 1988-06-08 | イビデン株式会社 | Graphite mold for hot press |
-
1988
- 1988-07-18 JP JP63178784A patent/JP2686485B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0230702A (en) | 1990-02-01 |
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