JPS6325266A - Ceramic composition for injection molding - Google Patents
Ceramic composition for injection moldingInfo
- Publication number
- JPS6325266A JPS6325266A JP61167690A JP16769086A JPS6325266A JP S6325266 A JPS6325266 A JP S6325266A JP 61167690 A JP61167690 A JP 61167690A JP 16769086 A JP16769086 A JP 16769086A JP S6325266 A JPS6325266 A JP S6325266A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- injection molding
- vinyl alcohol
- ethylene vinyl
- 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
- 239000000919 ceramic Substances 0.000 title claims description 24
- 238000001746 injection moulding Methods 0.000 title claims description 19
- 239000000203 mixture Substances 0.000 title claims description 13
- 239000000843 powder Substances 0.000 claims description 16
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- -1 fatty acid esters Chemical class 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 238000005238 degreasing Methods 0.000 description 12
- 239000011230 binding agent Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000205 poly(isobutyl methacrylate) Polymers 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 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
- 238000005336 cracking Methods 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は射出成形後焼成される射出成形用セラミック組
成物に係わり、特にその有機バインダーに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a ceramic composition for injection molding which is fired after injection molding, and particularly to an organic binder thereof.
（従来の技術）
一般に、射出成形法を採用してセラミ−／り焼結体を製
造する場合には、まずセラミック粉末に適量の有機バイ
ンダーを配合混練し、これを所望の形状に射出成形した
後、バインダー成分を揮散させる脱脂工程を経て焼成さ
れる。(Prior art) Generally, when manufacturing ceramic/resintered bodies by injection molding, an appropriate amount of organic binder is first mixed and kneaded with ceramic powder, and then injection molded into the desired shape. After that, it is fired through a degreasing process to volatilize the binder component.
有機バインダーとしてはエチレン酢酸ビニル共重量体に
パラフィン、ポリオレフィンを配合して使用するのが一
般的、である。As an organic binder, it is common to use an ethylene-vinyl acetate copolymer mixed with paraffin and polyolefin.
ところが、エチレン酢酸ビニル共重合体はＲ練工程およ
び射出成形工程において腐蝕性ガスである酢酸を発生し
やすいという難点がある。エチレンアクリル酸エチル共
重体を用いるという提案もあるが（特開昭５９−１２１
１５０）、アクリル醇エステルとエチレンの共重合性が
悪く、共重合比を変更した試料が得難いという難点があ
る。またエチレン酢酸ビニル共重合体あるいはエチレン
アクリル酸エチル共重体の極性基はエステル結合である
。エステル結合の無機粉体との親和性は弱く、親和性を
増すため脂肪酸であるステアリン酸オレイン酸等の添加
を必要とする。However, the ethylene-vinyl acetate copolymer has a disadvantage in that it tends to generate acetic acid, which is a corrosive gas, during the R-kneading process and the injection molding process. There is also a proposal to use ethylene ethyl acrylate copolymer (Japanese Patent Application Laid-open No. 59-121
150), the copolymerizability of acrylic ester and ethylene is poor, and it is difficult to obtain samples with different copolymerization ratios. Further, the polar group of the ethylene vinyl acetate copolymer or the ethylene ethyl acrylate copolymer is an ester bond. The affinity of ester bonds with inorganic powder is weak, and it is necessary to add fatty acids such as stearic acid and oleic acid to increase the affinity.
しかしながら脂肪酸の添加は射出成形機等の金属材質な
Ｒ蝕させやすいという問題点がある。However, there is a problem in that the addition of fatty acids tends to cause corrosion of metal materials such as injection molding machines.
（発明が解決しようとする問題点）
以上において述べた如くエチレン酢酸ビニル共重合体を
用いる従来の射出成形によるセラミック製造法では混線
工程および射出工程において腐蝕性ガスである酢酸の発
生があり、また粉体との親和性の不足によりＷＸ蝕性の
大きい添加物を使用しなければならず、またその添加物
を使用しなければ無機粉体との親和性が不足し射出成形
物の強度が不足するという欠点が生ずる。(Problems to be Solved by the Invention) As mentioned above, in the conventional ceramic manufacturing method by injection molding using ethylene vinyl acetate copolymer, acetic acid, which is a corrosive gas, is generated in the crosstalk process and the injection process. Due to the lack of affinity with the powder, it is necessary to use additives that are highly corrosive to WX, and if such additives are not used, the strength of the injection molded product will be insufficient due to the lack of affinity with the inorganic powder. This has the disadvantage of doing so.
本発明はかかる問題点を解決するためなされたものであ
る。その目的とする所は射出成形性がすぐれているのは
勿論、脱脂工程および焼成工程において、割れ、クラッ
ク等が発生することなく。The present invention has been made to solve such problems. The objective is not only to have excellent injection moldability, but also to avoid cracking or breaking during the degreasing and firing processes.
また製造装置に使用している金属材料を腐蝕させること
がない射出成形用セラミック組成物を提供することにあ
る。Another object of the present invention is to provide a ceramic composition for injection molding that does not corrode metal materials used in manufacturing equipment.
（問題点を解決するための手段）
第一の発明に係る射出成形用セラミック組成物は、セラ
ミック粉末１００重量部とエチレンビニルアルコール共
重合体２〜３０重量部とから構成した所に特徴を有する
。(Means for solving the problem) The ceramic composition for injection molding according to the first invention is characterized in that it is composed of 100 parts by weight of ceramic powder and 2 to 30 parts by weight of ethylene vinyl alcohol copolymer. .
また第２の発明に係る射出成形用セラミック組成物は、
第一の発明に対レボリアルキルメタクリレート、パラフ
ィンワックス、ポリスチレン、多価脂肪酸エステルから
選ばれた１種または２種以上の化合物を添加し、セラミ
ック粉末１００重量部に対する全有機物添加量を１０〜
４０重量部としたことに特徴がある。Moreover, the ceramic composition for injection molding according to the second invention is
One or more compounds selected from levoalkyl methacrylate, paraffin wax, polystyrene, and polyvalent fatty acid ester are added to the first invention, and the amount of total organic matter added is 10 to 100 parts by weight based on 100 parts by weight of the ceramic powder.
The feature is that the amount is 40 parts by weight.
（作用）
本発明の射出成形用セラミック組成物に含まれるエチレ
ンビニルアルコール共重合体は分子内に水酸基を含み無
機粉体との親和性にすぐれている。(Function) The ethylene vinyl alcohol copolymer contained in the ceramic composition for injection molding of the present invention contains a hydroxyl group in the molecule and has excellent affinity with inorganic powder.
またエチレンに基づく構造単位があるので、パラフィン
ワックス、ポリスチレン、ポリアルキルメタクリレート
等との親和性がすぐれている。Furthermore, since it has a structural unit based on ethylene, it has excellent affinity with paraffin wax, polystyrene, polyalkyl methacrylate, etc.
このような特徴のため有機バインダーと粉体との混練性
にすぐれている。また混練工程および射出成形工程中に
、酢酸等の腐蝕性ガスの発生がみられないし腐蝕性の大
きな脂肪酸の添加を必要としない。エチレンビニルアル
コール共重合体の添加量を２〜３０重量部に限定したの
はこの範囲において成形性脱脂性がすぐれているからで
ある。Due to these characteristics, it has excellent kneading properties between the organic binder and the powder. Further, no corrosive gas such as acetic acid is generated during the kneading process and the injection molding process, and there is no need to add highly corrosive fatty acids. The reason why the amount of the ethylene vinyl alcohol copolymer added is limited to 2 to 30 parts by weight is that moldability and degreasing properties are excellent within this range.
２重量部より少いと成形性が劣り、実質上成形不能とな
るからである。逆に３０重量部より多いと有機バインダ
ーが多退ざると脱脂工程において脱脂が困難となるから
である。This is because if it is less than 2 parts by weight, moldability will be poor and it will be virtually impossible to mold. On the other hand, if the amount exceeds 30 parts by weight, the organic binder will recede, making degreasing difficult in the degreasing step.
第２発明においてポリアルキルメタクリレート、パラフ
ィンワックス、ポリスチレン、多価脂肪酸エステルから
選ばれた一種または二種以上の化合物を添加し全有機物
添加量を１０〜４０重量部とする。In the second invention, one or more compounds selected from polyalkyl methacrylate, paraffin wax, polystyrene, and polyvalent fatty acid ester are added to bring the total amount of organic matter added to 10 to 40 parts by weight.
１０重量部より少ないと成形性が劣り、射出成形が困難
となるからである。４０重量部より多いと有機バインダ
ーが多過ぎ、脱脂が困難となるからである。第２の発明
において、第１の発明に対し前記化合物を付加した理由
は脱脂工程における熱分解温度領域を拡大するためであ
る。すなわちエチレンビニルアルコール共重合体の熱分
解領域ど前記化合物の熱分解領域は異なり、−時に急激
な分解を避けることができ、脱脂工程における好ましか
らざる割れ、クラック等を避けることができるのである
。This is because if it is less than 10 parts by weight, moldability will be poor and injection molding will be difficult. This is because if it exceeds 40 parts by weight, the organic binder will be too large and degreasing will become difficult. In the second invention, the reason for adding the above compound to the first invention is to expand the thermal decomposition temperature range in the degreasing step. That is, the thermal decomposition area of the compound is different from that of ethylene vinyl alcohol copolymer, and sometimes rapid decomposition can be avoided, and undesirable cracks and cracks can be avoided during the degreasing process.
本発明で用いるエチレンビニルアルコール共重合体はエ
チレン酢酸ビニル共重合体から酸または塩基を用いて容
易に製造することができるものである。ビニルアルコー
ルの共重合比は２〜５０モル２が適当である。 ５０モ
ル２より多くなると熱可塑性が低下し、２モル２より少
ないと親和性が低いからである。The ethylene vinyl alcohol copolymer used in the present invention can be easily produced from an ethylene vinyl acetate copolymer using an acid or a base. The appropriate copolymerization ratio of vinyl alcohol is 2 to 50 moles. This is because when the amount is more than 50 mol 2 , thermoplasticity decreases, and when it is less than 2 mol 2 , the affinity is low.
（実施例） 以下本発明をいくつか実施例に基づき説明する。(Example) The present invention will be explained below based on some examples.
実施例１
平均粒度２ 、Ｏｈｍのアルミナ系セラミック粉末の１
００ 重量部に対し、エチレンビニルアルコール共重合
体（ビニルアルコール共重合比２０モルｚ）５重量部、
ポリイソブチルメタクリレート１７重量部を添加しこれ
らを１５０℃において均一に混練した後粉砕して射出成
形用セラミック粉末組成物′を得た。これをスクリュー
インライン式の射出成形機により、厚さ寸法が０．５〜
１．５ｃｍに変化する階段状の成形品を得た。Example 1 Alumina-based ceramic powder with an average particle size of 2 Ohm
00 parts by weight, 5 parts by weight of ethylene vinyl alcohol copolymer (vinyl alcohol copolymerization ratio 20 mol z),
17 parts by weight of polyisobutyl methacrylate were added and the mixture was uniformly kneaded at 150°C and then ground to obtain a ceramic powder composition for injection molding. This is then molded using a screw in-line injection molding machine to a thickness of 0.5~
A step-like molded product varying in length to 1.5 cm was obtained.
この成形品にはひけ、ウェルドライン、クラック歪み、
割れ等の欠陥は全く観察されなかった。This molded product has sink marks, weld lines, crack distortion,
No defects such as cracks were observed.
この後、この成形品を平均昇温速度２．０ ”０ ／
ｈｒで、４００℃まで加熱して脱脂した。脱脂工程後に
おいても成形品にふくれ歪み、クラック表面剥離、割れ
等の欠陥は全く観察されなかった。この成形品を１６０
０℃にて焼成して欠陥のないセラミック焼結体が得られ
た。After this, the molded product was heated at an average heating rate of 2.0 ”0 /
It was heated to 400° C. for degreasing. Even after the degreasing process, no defects such as bulging distortion, cracked surface peeling, or cracking were observed in the molded product. This molded product is 160
A defect-free ceramic sintered body was obtained by firing at 0°C.
実施例２
平均粒度２．Ｏｐｍのアルミナ系セラミックス粉末１０
０重量部に対し、エチレンビニルアルコール共重合体（
ビニルアルコール１０モル＄１０）１０重量部、軟化点
７０℃のポリオレフィンワックス５重量部、ポリイソブ
チルメタクリレート１０重量部を加え１５０°Ｃにて混
練粉砕して射出成形用セラミック組成物を得た。Example 2 Average particle size 2. Opm alumina ceramic powder 10
0 parts by weight of ethylene vinyl alcohol copolymer (
10 parts by weight of vinyl alcohol (10 moles $10), 5 parts by weight of polyolefin wax having a softening point of 70°C, and 10 parts by weight of polyisobutyl methacrylate were added and kneaded and ground at 150°C to obtain a ceramic composition for injection molding.
これを実施例１と同様に成形、脱脂および焼成の各工程
を経てセラミック焼結体を得た。This was subjected to the steps of molding, degreasing, and firing in the same manner as in Example 1 to obtain a ceramic sintered body.
この場合にも成形品およびセラミック焼結体にクラック
割れ等の欠陥は発生しなかった。In this case as well, no defects such as cracks occurred in the molded product or the ceramic sintered body.
実施例３
平均粒度２．ＯＪＬｍのジルコニア系セラミック粉末１
００重量部に対しエチレンビニル共重合体（ビニルアル
コール共重合比１０モル％ ） １２．５重量部、ポリ
イソブチルメタクリレ−） １２．５重量部を加え混線
粉砕することにより射出成形用セラミック組成物を得、
更に実施例１と同様な成形脱脂および焼成の各工程を経
てセラミック焼結体を得た。Example 3 Average particle size 2. OJLm zirconia ceramic powder 1
A ceramic composition for injection molding was obtained by adding 12.5 parts by weight of ethylene vinyl copolymer (vinyl alcohol copolymerization ratio 10 mol%) and 12.5 parts by weight of polyisobutyl methacrylate to 00 parts by weight and cross-circulating the mixture. obtained,
Furthermore, a ceramic sintered body was obtained through the same molding and degreasing and firing steps as in Example 1.
この場合も成形品およびセラミック焼結体にクラック、
割れ等の欠陥は発生しなかった。In this case as well, the molded product and ceramic sintered body may have cracks,
No defects such as cracks occurred.
なお、本発明は上記実施例に限定されるものではなく例
えばセラミック粉末としては、その他炭化ケイ素、窒化
ケイ素等であってもよい等要旨を逸脱しない範囲内で種
々変更して実施することができるものである。It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be practiced with various changes within the scope of the invention, such as for example, the ceramic powder may be silicon carbide, silicon nitride, etc. It is something.
（発明の効果）
以上述べたように、本発明は水酸基を有する工′チレン
ビニルアルコール共重合体をバインダーとして用いるも
のである。水酸基の効果により粉体との親和性にすぐれ
、したがって射出成形品の欠点を減少せしめることが可
能となる。しかも、エチレンビニルアルコール共重合体
は酢酸等の腐蝕性のガスを発生せしめないし、高級脂肪
酸の添加を必要としないため製造装置の耐久性を上げる
ことが可能となるのである。(Effects of the Invention) As described above, the present invention uses a polyethylene vinyl alcohol copolymer having a hydroxyl group as a binder. Due to the effect of hydroxyl groups, it has excellent affinity with powder, and therefore it is possible to reduce defects in injection molded products. Moreover, the ethylene vinyl alcohol copolymer does not generate corrosive gases such as acetic acid and does not require the addition of higher fatty acids, making it possible to increase the durability of the manufacturing equipment.
Claims (2)
ニルアルコール共重合体２〜３０重量部を混練してなる
射出成形用組成物。(1) An injection molding composition prepared by kneading 2 to 30 parts by weight of an ethylene vinyl alcohol copolymer with 100 parts by weight of ceramic powder.
ニルアルコール共重合体２〜３０重量部、ポリアルキル
メタクリレート、パラフィンワックス、ポリスチレン、
多価脂肪酸エステルから選ばれた一種または二種以上の
化合物を添加し全有機物添加量が１０〜４０重量部であ
ることを特徴とする射出成形用組成物。(2) For 100 parts by weight of ceramic powder, 2 to 30 parts by weight of ethylene vinyl alcohol copolymer, polyalkyl methacrylate, paraffin wax, polystyrene,
An injection molding composition characterized in that one or more compounds selected from polyvalent fatty acid esters are added, and the total amount of organic substances added is 10 to 40 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167690A JPS6325266A (en) | 1986-07-16 | 1986-07-16 | Ceramic composition for injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167690A JPS6325266A (en) | 1986-07-16 | 1986-07-16 | Ceramic composition for injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6325266A true JPS6325266A (en) | 1988-02-02 |
Family
ID=15854425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61167690A Pending JPS6325266A (en) | 1986-07-16 | 1986-07-16 | Ceramic composition for injection molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325266A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354158A (en) * | 1989-07-21 | 1991-03-08 | Koei Chem Co Ltd | Ceramic composition for injection |
| EP2322342A1 (en) * | 2009-11-17 | 2011-05-18 | Airbus Operations (S.A.S.) | Machine for wrapping cylindrical composite parts |
-
1986
- 1986-07-16 JP JP61167690A patent/JPS6325266A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354158A (en) * | 1989-07-21 | 1991-03-08 | Koei Chem Co Ltd | Ceramic composition for injection |
| EP2322342A1 (en) * | 2009-11-17 | 2011-05-18 | Airbus Operations (S.A.S.) | Machine for wrapping cylindrical composite parts |
| FR2952579A1 (en) * | 2009-11-17 | 2011-05-20 | Airbus Operations Sas | MACHINE FOR DRAPING CYLINDRICAL COMPOSITE PARTS |
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