JPS613708A - Manufacture of removed earth for extrusion molding - Google Patents
Manufacture of removed earth for extrusion moldingInfo
- Publication number
- JPS613708A JPS613708A JP12486284A JP12486284A JPS613708A JP S613708 A JPS613708 A JP S613708A JP 12486284 A JP12486284 A JP 12486284A JP 12486284 A JP12486284 A JP 12486284A JP S613708 A JPS613708 A JP S613708A
- Authority
- JP
- Japan
- Prior art keywords
- water
- extrusion molding
- parts
- ceramic powder
- producing
- 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
- 238000001125 extrusion Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 18
- 239000004927 clay Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 9
- 239000004014 plasticizer Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000004382 potting Methods 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000003232 water-soluble binding agent Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000004898 kneading Methods 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229920005822 acrylic binder Polymers 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 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
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- -1 ittria Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray 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
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔技術分野Ｊ
この発ｆＪは、セラミックス製品を成形加工する際に有
用な方法として広く採用されている押出成形用のはい土
の製法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field J] This publication relates to a method for producing potting clay for extrusion molding, which is widely adopted as a useful method for molding ceramic products.
従来、セラミックスの押出成形用はい土は、以下の２方
法で製造され、その後真空土練成形機で押出成形品に加
工されている。Conventionally, clay for extrusion molding of ceramics has been produced by the following two methods, and then processed into extrusion molded products using a vacuum clay kneading machine.
■セラミックスの粉体と適量のパインタラ乾式によ妙予
備混合しておき、その中に水と湿潤剤と可塑剤を適量加
え、混合し、ニーダまたはロールにより一定時間混練し
はい土を作る。■Preliminarily mix ceramic powder and an appropriate amount of pine cod in a dry method, add appropriate amounts of water, wetting agent, and plasticizer, mix, and knead for a certain period of time with a kneader or roll to make potting soil.
■適量のバインダに、適量の水、湿潤剤、可塑剤な加え
、バインダを完全に溶解し、均一な液体とした後に、セ
ラミックス粉体を加え混合し、ニーダまたはロールによ
り一定時間混練してはい土を作る・
上記製法では、セラミックス粉体と水とバインダとの混
合が半乾式混合になるため、均一混合が不可能である。■ Add an appropriate amount of water, wetting agent, and plasticizer to an appropriate amount of binder to completely dissolve the binder and make it a uniform liquid, then add ceramic powder and mix, and knead for a certain period of time with a kneader or roll. Making Soil - In the above manufacturing method, the ceramic powder, water, and binder are mixed in a semi-dry manner, making uniform mixing impossible.
そのために、その後に行うニーダによる混練に長時間を
要し、また長時間混練しても、均一にバインダおよび水
を分散させるのは困−であった、このため、得られた成
形品の密度が低く、表面粗度が悪く、寸法バラツキが大
きいという欠点があった。For this reason, it took a long time to knead with a kneader, and even after long kneading, it was difficult to uniformly disperse the binder and water. It had the disadvantages of low surface roughness, poor surface roughness, and large dimensional variations.
〔発明の目的］
この発明は、上記のような現状に鑑み、混練作業時間を
短縮、またはこの工程を廃除し、しかも、押出成形品の
密度が高く、表面粗度が良く、寸法バラツキの少ない押
出成形用はい土の製法を提供することをその目的として
いる。[Object of the invention] In view of the above-mentioned current situation, the present invention shortens the kneading operation time or eliminates this step, and also provides an extruded product with high density, good surface roughness, and little dimensional variation. Its purpose is to provide a method for producing clay for extrusion molding.
〔発１１４の開示１
この発明は、上記の目的を達成するだめに、セラミンク
ス成形体ケ押出成形により得るためのはい上を製造する
にあたり、セラミックス粉体、水浴性バインターおよび
可塑剤等の添加剤と、セラミックス粉体１００重量部に
対して１００〜２００重量部の水を混合、分散して得ら
れたスラリ中の水分を乾燥除去し、その含水率が１５〜
２５重量部のケーキ状とすることを特徴とする押出成形
用はい土の製法をその要旨としている。以下にこれを詳
しく説明する。[Disclosure 1 of Issue 114] In order to achieve the above-mentioned object, the present invention uses additives such as ceramic powder, a water-bathable binder, and a plasticizer when producing a molded body to be obtained by extrusion molding of a ceramic molded body. The water in the slurry obtained by mixing and dispersing 100 to 200 parts by weight of water to 100 parts by weight of ceramic powder is removed by drying, and the water content is 15 to 100 parts by weight.
The gist is a method for producing clay for extrusion molding, which is characterized in that it is made into a cake shape of 25 parts by weight. This will be explained in detail below.
１ｏｏｔ１部（以下、部と略す）のセラミックス粉体、
０〜ｌＯ部の焼結助剤、３〜１０部の水浴性バインダ、
３〜１５部の可塑剤、０〜５部の湿潤剤、および０〜５
部の滑剤その他の添加剤と、１００〜２００部の水を秤
量し、ボールミルあるいは振動ミルに仕込む。セラミッ
クス粉体としては、具体的には、アルミナ、フォルステ
ライト。1 oot 1 part (hereinafter abbreviated as part) of ceramic powder,
0 to 10 parts sintering aid, 3 to 10 parts water bath binder,
3-15 parts plasticizer, 0-5 parts wetting agent, and 0-5 parts
100 parts of lubricant and other additives and 100 to 200 parts of water are weighed and charged into a ball mill or vibration mill. Specific examples of ceramic powder include alumina and forsterite.
ジルコン、ムライト、コージライト、チタニア。Zircon, mullite, cordierite, titania.
マグネシア、炭化物、窒化物、ホウ化物等が用いられ、
焼結助剤としては、タルク、クレー、シリカ、マグネシ
ア、イツトリア、カルシア等が用いられる。水浴性バイ
ンターとしては、ＰＶＡ、ＰＥＧ。Magnesia, carbides, nitrides, borides, etc. are used,
As the sintering aid, talc, clay, silica, magnesia, ittria, calcia, etc. are used. Water-bathable binders include PVA and PEG.
ＭＣ，ＣＭＣ，アクリル系バインダ等が適しており、ｏ
Ｔ塑剤としてはグリセリン、ＥＧ、各種エマルジョン等
、湿潤剤としては、アルコール系、エーテル系、エフチ
ル系溶剤等があけられる。以上のセラミックス粉体、バ
インダおよび添加剤の中から、それぞれの物性を考慮し
て適宜選ばる。ボールミルおよび振動ミルの玉石として
はアルミナボールを使用し、ボールミルの場合にｔｉ５
〜３０時間、 ”振動ミルの場合には３０分〜５時
間混合し、スラリ状態とする。MC, CMC, acrylic binders, etc. are suitable.
Examples of the T-plastic agent include glycerin, EG, and various emulsions, and examples of the wetting agent include alcohol, ether, and ethyl solvents. An appropriate material is selected from among the above ceramic powders, binders, and additives in consideration of their respective physical properties. Alumina balls are used as cobblestones in ball mills and vibration mills, and in the case of ball mills, ti5
~30 hours, ``In the case of a vibrating mill, mix for 30 minutes to 5 hours to form a slurry.
Ｈに述べたように、仕込時の水量は、セラミックス粉体
１（）０部に対し１００〜２００部にすることが必要で
ある。これは、水が１００部より少なく−（シュミルｉ
Ｃよる混合が困難であり、２００部を超えると、後に乾
燥する際に時間がかかりすぎるためである。すなわち、
比較的多敵の水を使用し、かつ、ボールミル、振動ミル
等を使用することによって、バインターの溶解と分散、
セラミックス粉体の解砕、粉砕、粉体とバインダとの親
和性σ月句Ｊ−：’〔は乃・るものである。As stated in Section H, the amount of water at the time of preparation needs to be 100 to 200 parts per 1 ( ) 0 parts of ceramic powder. This means less than 100 parts of water - (Schmil i
This is because mixing with C is difficult, and if it exceeds 200 parts, it takes too much time to dry later. That is,
By using water, which is relatively versatile, and using a ball mill, vibration mill, etc., the binder can be dissolved and dispersed.
Crushing and pulverizing of ceramic powder, affinity of powder and binder σ month phrase J-:'
らＧ）」：つＣＣｌ−、Ｃ得たスラリ牙、かく拌機付き
の、Ｉｃ ：、：’Ｃ“ｊ ６ｉ’＋’に移し、脱泡ｔ
′る。つき゛に、説明を完ｒ１、／こス′ノリのｌｋ全
乾燥装置で脱水してケーキ状のｄい土を得る。乾燥後の
含水量はセラミックス粉体１ ｔｌ １＋部ケこχ１し
１５〜２５部に−することが必要である。これは、含水
率が１５部未満ではｔよい土が硬くなって成形が困難と
なり、２５部を超えると成形時に圧力がかからず、同様
に成形が困難となるためである。乾燥装置には、箱型熱
風乾燥機。Transfer the obtained slurry to Ic:,:'C"j 6i'+' with a stirrer and degas it.
'ru. After completing the explanation, the soil was dehydrated using a total drying device of this type to obtain a cake-like soil. The water content after drying must be 15 to 25 parts per 1 + part of the ceramic powder to χ1. This is because if the moisture content is less than 15 parts, the soil becomes hard and difficult to mold, and if it exceeds 25 parts, no pressure is applied during molding, making molding similarly difficult. The drying device is a box-type hot air dryer.
振動加熱乾燥機、ドラム乾燥機、スプレードライヤ等が
あり、適宜採用されてよい。There are vibrating heating dryers, drum dryers, spray dryers, etc., which may be used as appropriate.
この発明では、このようにニーダあるいはロールによる
混線工程が完全に排除できるため、作業時間の短縮の他
空気のだき込み、機械の摩擦粉の混入等、上記工程に伴
って生じていた問題点も同時に解決されるものである。With this invention, the cross-wire process using kneaders or rolls can be completely eliminated, so in addition to shortening the working time, it also eliminates the problems that occurred with the above processes, such as air entrainment and mixing of machine friction powder. They will be solved at the same time.
この発明の方法によって製造された押出成形用はい土は
、真空土練成形機でシート状あるいはバイブ状に押出成
形される。The extrusion molding clay produced by the method of the present invention is extruded into a sheet or a vibrator using a vacuum clay kneading machine.
つぎに、この発明にがかる押出成形用はい土の製法の実
施例を詳しく説明する。Next, an example of the method for producing extrusion molding clay according to the present invention will be described in detail.
平均粒径０．５μｍのアルミナ１０００ｇ 、焼結助剤
としてのタルクおよび炭酸カルシウムの混合物５０ ｇ
、 水浴性バインタとしての７ナルセルロ一ス６０ｇ
、可塑剤としてのグリセリン８０ｇ、湿潤剤としてのブ
チルアルコール２０ｇ、滑剤その他の添加剤ｌｏｇを用
意し、水１５００ｇとともに振動ミルに投入した、振動
ミルには玉石としてアルミナボールｌ ｋｇ を投入し
、上記配合材料を２時間混合した。その後、かく拌機付
き真空容器に１−記スラリを移して脱泡した。つぎに、
脱泡を完ｒしたスラリを振動加熱乾燥機で脱水し、水を
２０ｏｇ’３むケーキ状の押出成形用はい土を得た。1000 g of alumina with an average particle size of 0.5 μm, 50 g of a mixture of talc and calcium carbonate as sintering aids
, 7-narcellulose 60g as a bathing binder
, prepared 80 g of glycerin as a plasticizer, 20 g of butyl alcohol as a wetting agent, log of lubricant and other additives, and put them into a vibration mill along with 1500 g of water.L kg of alumina balls were put into the vibration mill as cobbles, and the above The formulation materials were mixed for 2 hours. Thereafter, the slurry described in 1- above was transferred to a vacuum container equipped with a stirrer and degassed. next,
The defoamed slurry was dehydrated using a vibration heating dryer to obtain a cake-like extrusion molding clay containing 20 og'3 of water.
上記ｄい土をＸ空土練成形機を用いて、厚み２羽の７−
ト状に押出成形し、乾燥して水分を除去し、グリーンシ
ート（成形体）を作成した後、１６００°０で２時間焼
成して焼結させ、アルミナ磁器を製造１−だ。Using an
After extrusion molding into a sheet shape and drying to remove moisture to create a green sheet (molded body), it was fired and sintered at 1600°0 for 2 hours to produce alumina porcelain.
実施例のはい土より得られたアルミナ磁器ｄ内部気孔状
態を、従来法のはい土より得られたアルミナ磁器のそれ
と顕微鏡で比較、観察したところ、セラミックス粉体と
バインダが均一に混合され、きめ細かな気孔状態となっ
ていた。Comparing and observing the internal pore state of the alumina porcelain obtained from the potting soil of the example with that of the alumina porcelain obtained from the conventional potting soil using a microscope, it was found that the ceramic powder and binder were mixed uniformly and finely-grained. It was in a state of pores.
つぎに、実施例および従来例から得られた成形体および
焼成体の物性を以Ｆの表に示す６との表にみるように、
実施例の成形体および焼成体は、従来例に比べ、密度が
関〈表向けなめらかで、曲は強度が高い。・
〔発明の効果〕
この発明は、−上記のように構成されているので、ニー
ダおよびａ−ルによる混練工程が省略でき、作業時間が
大幅に短縮される。その上、セラミックス粉体とバイン
ダと可塑剤等の添加剤、および水が湿式混合され、脱泡
、脱水するために粉体とバイ゛ンダと水との親和性が高
１す、均一・に混合されたｔまい土を得ることができる
。したがって、とｆｈを用いれば、＾密度で高品質の押
出成形品を製造することができる。Next, the physical properties of the molded bodies and fired bodies obtained from Examples and Conventional Examples are as shown in Table 6 shown in Table F below.
The molded bodies and fired bodies of the examples have a density that is smoother on the surface and higher in strength than the conventional example. - [Effects of the Invention] Since the present invention is configured as described above, the kneading process using a kneader and an a-ru can be omitted, and the working time can be significantly shortened. In addition, the ceramic powder, binder, additives such as plasticizers, and water are wet mixed, and the powder, binder, and water have a high affinity for defoaming and dehydration. Mixed soil can be obtained. Therefore, by using and fh, it is possible to produce extruded products with high density and high quality.
Claims (2)
はい土を製造するにあたり、セラミックス粉体、水溶性
バインダおよび可塑剤等の添加剤と、セラミックス粉体
１００重量部に対して１００〜２００重量部の水を混合
、分散して得られたスラリ中の水分を乾燥除去し、その
含水率が１５〜２５重量部のケーキ状とすることを特徴
とする押出成形用はい土の製法。(1) When producing potting soil for obtaining ceramic molded bodies by extrusion molding, additives such as ceramic powder, water-soluble binder, and plasticizer are added in an amount of 100 to 200 parts by weight per 100 parts by weight of ceramic powder. A method for producing potting clay for extrusion molding, which comprises drying and removing water in a slurry obtained by mixing and dispersing water, and forming the slurry into a cake shape having a water content of 15 to 25 parts by weight.
結助剤および滑剤である特許請求の範囲第１項記載の押
出成形用はい土の製法。(2) The method for producing extrusion molding clay according to claim 1, wherein the additives other than the plasticizer are at least a wetting agent, a sintering aid, and a lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12486284A JPS613708A (en) | 1984-06-18 | 1984-06-18 | Manufacture of removed earth for extrusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12486284A JPS613708A (en) | 1984-06-18 | 1984-06-18 | Manufacture of removed earth for extrusion molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS613708A true JPS613708A (en) | 1986-01-09 |
Family
ID=14895934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12486284A Pending JPS613708A (en) | 1984-06-18 | 1984-06-18 | Manufacture of removed earth for extrusion molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS613708A (en) |
-
1984
- 1984-06-18 JP JP12486284A patent/JPS613708A/en active Pending
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