JPS63288704A - Manufacture of inorganic product - Google Patents
Manufacture of inorganic productInfo
- Publication number
- JPS63288704A JPS63288704A JP12469887A JP12469887A JPS63288704A JP S63288704 A JPS63288704 A JP S63288704A JP 12469887 A JP12469887 A JP 12469887A JP 12469887 A JP12469887 A JP 12469887A JP S63288704 A JPS63288704 A JP S63288704A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- raw material
- mold
- material slurry
- suction
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000002002 slurry Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 33
- 239000002994 raw material Substances 0.000 claims description 33
- 238000010304 firing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 239000011148 porous material Substances 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 4
- 238000009415 formwork Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、セラミックス製品やコンクリート製品等の
無機質製品の製法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for producing inorganic products such as ceramic products and concrete products.
セラミックス製品、コンクリート製品等の無機質製品の
製法は、一般に、湿式法と乾式法とがある。乾式法は、
粘土質原料、珪長石ならびにタルク、ドロマイト、石灰
等の粉末原料を適宜に組み合わせて乾式粉末組成物をつ
くり、これを上下一対の金型の成形用凹部内へ投入し、
型を閉じてその投入組成物を加圧成形し、形成された成
形体を上記下型から脱型し焼成するということにより行
う方法である。この方法は一乾式粉末組成物を加圧成形
して成形体をつくるのに大きな圧力を必要とする。した
がって、特に大形の成形品をつくる場合には、極めて大
きな設備が必要となるうえ、乾式粉末組成物を加圧して
締め固める際に、粉体の分布が不均一になって歪等が発
生し、成形体に割れやひび等を生じ不良品が多くなると
いう難点を有している。There are generally wet methods and dry methods for manufacturing inorganic products such as ceramic products and concrete products. The dry method is
A dry powder composition is made by appropriately combining clay raw materials, felsic stone, and powder raw materials such as talc, dolomite, and lime, and this is poured into the molding recesses of a pair of upper and lower molds.
This is a method in which the mold is closed, the charged composition is pressure-molded, and the formed body is removed from the lower mold and fired. This method requires a large amount of pressure to press-form a dry powder composition into a compact. Therefore, especially when making large molded products, extremely large equipment is required, and when pressurizing and compacting the dry powder composition, the distribution of the powder becomes uneven, causing distortion, etc. However, this method has the disadvantage that cracks and cracks occur in the molded product, resulting in an increase in the number of defective products.
このため、最近では、湿式法が賞月されている。湿式法
は、上記乾式法に用いたと同様の原料を適宜に組み合わ
せて所定の含水率の湿式組成物（原料スラリー）をつく
り、この組成物を石膏型に入れ、その水分を水圧プレス
等の圧力を利用し型内を通り抜けさせて水切りし、型内
に湿式組成物の固形分からなる成形体を形成する。そし
て、この成形体を脱型し乾燥したのち、焼成炉中で焼成
するということにより無機質製品を製造するという方法
である。この場合、上記石膏型内に、一定量の原料スラ
リーを供給する必要があり、そのため、一般に計量装置
で予め計量した原料スラリーを、スクリュー等の搬送手
段を内蔵しているシリンダー内に供給し、これをスクリ
ュー等の作用によって上記石膏型内に押し込むことが行
われている。しかしながら、この方法は、上記のように
原料スラリーを一定量供給するために専用の装置が必要
となるうえ、原料の計量ミスや計量ロス等が発生し均一
な製品を効率よく製造することができないという難点が
ある。For this reason, wet methods have been gaining popularity recently. In the wet method, a wet composition (raw material slurry) with a predetermined moisture content is created by appropriately combining the same raw materials used in the dry method described above, this composition is placed in a plaster mold, and the moisture is removed using pressure such as a hydraulic press. The wet composition is passed through the mold to drain water, thereby forming a molded body made of the solid component of the wet composition in the mold. Then, this molded body is demolded, dried, and then fired in a firing furnace to produce an inorganic product. In this case, it is necessary to supply a certain amount of raw material slurry into the plaster mold, so generally the raw material slurry, which has been measured in advance with a measuring device, is supplied into a cylinder containing a conveying means such as a screw, This is pushed into the plaster mold by the action of a screw or the like. However, as mentioned above, this method requires specialized equipment to supply a constant amount of raw material slurry, and it is not possible to efficiently manufacture uniform products due to errors in measuring raw materials or measurement losses. There is a drawback.
この発明は、このような事情に鑑みなされたもので、均
質な無機質製品を効率よく製造する方法の提供をその目
的とする。The present invention was made in view of the above circumstances, and an object thereof is to provide a method for efficiently manufacturing a homogeneous inorganic product.
上記の目的を達成するため、この発明の無機質製品の製
法は、少なくとも一方の型が透水性を有する上型と下型
とを用い、上記両型でつくられる成形用空間内に原料ス
ラリーを圧入しながら上記型の透水性を利用し脱水して
成形品をつくり、これを焼成工程を経由させて無機質製
品化する無機質製品の製法であって、上記成形品の成形
の過程で、上記成形用空間内の圧力が一定になるよう原
料スラリーの供給量を制御するという構成をとる。In order to achieve the above object, the inorganic product manufacturing method of the present invention uses an upper mold and a lower mold, at least one of which is water permeable, and presses a raw material slurry into the molding space created by the two molds. This is a manufacturing method for inorganic products, in which a molded product is created by dehydration using the water permeability of the mold, and then turned into an inorganic product through a firing process. The configuration is such that the supply amount of raw material slurry is controlled so that the pressure in the space is constant.
すなわち、この方法は、成形用空間内の圧力が一定にな
るようスラリーの供給量を制御するため、成形の過程で
、透水型を通して水切り脱水された水分に対応する量の
スラリーが自動的に供給されるようになる。したがって
、これまでのように、原料スラリーを厳密に計量するこ
となく、自動的に均質な成形品を形成しうるのであり、
これを焼成等することによって、品質の揃った無機質製
品を得ることができるようになる。また、原料スラリー
の計量が不要になるため、計量装置が不必要になると同
時に、計量作業が不必要になり、したがって、それに伴
う手間が省け、製造の効率アップを実現しうるようにな
る。In other words, this method controls the amount of slurry supplied so that the pressure in the molding space is constant, so during the molding process, an amount of slurry corresponding to the water that is drained and dehydrated through the water-permeable mold is automatically supplied. will be done. Therefore, it is possible to automatically form a homogeneous molded product without having to strictly measure the raw material slurry as in the past.
By firing this, an inorganic product of uniform quality can be obtained. In addition, since it is not necessary to measure the raw material slurry, a measuring device is not necessary, and at the same time, measuring work is also unnecessary, and therefore, the associated labor and effort can be saved, and it is possible to realize an increase in manufacturing efficiency.
つぎに、この発明の詳細な説明する。Next, this invention will be explained in detail.
第１図はこの発明に用いる成形装置を示している。図に
おいて、１は上型の四角板状の上台盤であり、油圧シリ
ンダー１９の四角板状台盤２０と４本のアーム２１．２
２で連結され、油圧シリンダー１９の駆動により上下に
移動するようになっている。この上台盤１には、断面形
状がコ字状の上型枠２が下向きに設けられており、コ字
状の上型枠２内に樹脂製の連続気孔付き多孔質弾性体３
が配設されている。そして、この多孔質弾性体３の表面
には成形用凹部３ａが形成されている。また、上記多孔
質弾性体３の内部には、外周面に多数の開口を有する吸
引・圧縮パイプ４が配挿されており、その端部が真空吸
引パイプ５および圧縮空気バイブロを介して真空ポンプ
（図示せず）および圧縮空気ポンプ（図示せず）に連結
されている。７．８は上記真空吸引ないし圧縮空気の切
り換えを行うための切換弁である。１）は上記上台盤１
に対応する下型の下台盤であり、支持柱９．１０により
支持固定されている。１２は上記下台盤１）に設けられ
た断面コ字状の下型枠であり、内部に樹脂製の連続気孔
付き多孔質弾性体１３が配設されている。この多孔質弾
性体１３の表面も上記上型枠２の多孔質弾性体３と同様
成形用凹部１３ａが形成されており、また、内部に吸引
・圧縮パイプ１４が配挿されている。そして、この吸引
・圧縮パイプ１４の端部には、真空吸引パイプ１５およ
び圧縮空気パイプ１６が接続されており、それぞれ真空
ポンプ（図示せず）、圧縮空気ポンプ（図示せず）の作
用を受けるようになっている。１７．１８は上記真空吸
引ないし圧縮空気の切り換えを行うための切換弁である
。２３はスクリュ一式押出機であり、この押出機２３の
先端部がパイプ２４によって上記下型枠１２の成形用凹
部１３ａに連通されている。２９は上記スクリュ一式押
出機２３に原料スラリー３０を供給する供給口、２５は
上記スクリュ一式押出機２３のスクリューを駆動するモ
ータである。そして、上記スクリュ一式押出機２３のパ
イプ２４には圧力センサー２６が設けられ、この圧力セ
ンサー２６から信号増幅機２７に接続線２６ａが延び、
この信号増幅機２７から制御機２８に信号線２７ａが延
びている。そして、この制御機２８からモータ２５に制
御信号線２８ａが延びている。上記圧力センサー２６は
、上型の連続気孔付き多孔質弾性体３と下型の連続気孔
付き多孔質弾性体１３の成形用凹部３ａ、１３ａで形成
される成形用空間内の圧力を検出して検出信号を信号増
幅機２７に送る。信号増幅機２７はこの信号を増幅して
制御機２８に送り、この制ｍ機２８において、予め入力
された設定値と上記入力信号値とが対比され、設定値よ
りも入力信号値が低い場合には、制御信号線２８ａを介
してモータ２５に駆動信号が送られる。入力信号値が設
定値と同じか近似した値になっているときには、モータ
２５の駆動停止信号が送られる。このようにして、上記
成形用空間内の圧力が一定に保たれるようになっている
。FIG. 1 shows a molding apparatus used in this invention. In the figure, reference numeral 1 indicates a square plate-shaped upper base plate of the upper mold, which includes a square plate-shaped base plate 20 of a hydraulic cylinder 19 and four arms 21.2.
2, and are moved up and down by the drive of a hydraulic cylinder 19. This upper base plate 1 is provided with an upper formwork 2 having a U-shaped cross section facing downward, and inside the U-shaped upper formwork 2 is a porous elastic body 3 made of resin with continuous pores.
is installed. A molding recess 3 a is formed on the surface of the porous elastic body 3 . Furthermore, a suction/compression pipe 4 having a large number of openings on the outer peripheral surface is inserted inside the porous elastic body 3, and the end thereof is connected to a vacuum pump via a vacuum suction pipe 5 and a compressed air vibro. (not shown) and a compressed air pump (not shown). 7.8 is a switching valve for switching between the vacuum suction and compressed air. 1) is the above upper base plate 1
This is the lower base plate of the lower mold corresponding to the lower die, and is supported and fixed by support columns 9 and 10. Reference numeral 12 denotes a lower formwork having a U-shaped cross section and provided on the lower base plate 1), and a porous elastic body 13 made of resin and having continuous pores is disposed inside thereof. The surface of this porous elastic body 13 is also formed with a molding recess 13a, similar to the porous elastic body 3 of the upper mold 2, and a suction/compression pipe 14 is inserted inside. A vacuum suction pipe 15 and a compressed air pipe 16 are connected to the ends of this suction/compression pipe 14, and are operated by a vacuum pump (not shown) and a compressed air pump (not shown), respectively. It looks like this. 17 and 18 are switching valves for switching between the vacuum suction and compressed air. Reference numeral 23 denotes a screw extruder, and the tip end of the extruder 23 is communicated with the molding recess 13a of the lower mold frame 12 through a pipe 24. 29 is a supply port for supplying the raw material slurry 30 to the screw extruder 23, and 25 is a motor that drives the screw of the screw extruder 23. A pressure sensor 26 is provided on the pipe 24 of the screw extruder 23, and a connecting line 26a extends from the pressure sensor 26 to a signal amplifier 27.
A signal line 27a extends from the signal amplifier 27 to the controller 28. A control signal line 28a extends from the controller 28 to the motor 25. The pressure sensor 26 detects the pressure in the molding space formed by the molding recesses 3a and 13a of the porous elastic body 3 with continuous pores of the upper mold and the porous elastic body 13 with continuous pores of the lower mold. The detection signal is sent to the signal amplifier 27. The signal amplifier 27 amplifies this signal and sends it to the controller 28. The controller 28 compares the set value input in advance with the input signal value, and determines if the input signal value is lower than the set value. A drive signal is sent to the motor 25 via the control signal line 28a. When the input signal value is the same as or close to the set value, a drive stop signal for the motor 25 is sent. In this way, the pressure within the molding space is kept constant.
この構成において、第１図に示すように、型を閉めた状
態で、スクリュ一式押出機２３がら、成形用凹部３ａ、
１３ａでつくられる成形用空間内に原料用スラリー３０
を圧入する。そして、上型および下型の吸引・圧縮パイ
プ４．１４によって真空吸引を行い、原料スラリー３０
中の水分を吸引脱水する。これにより、成形用空間内の
圧力が下がるため、この圧力の低下が圧力センサー２６
によって検知され、信号増幅機２７および制御機２８を
介してモータ２５が駆動し、スクリュ一式押出機２３か
ら上記成形用空間内の圧力が一定になるまで原料スラリ
ー３０が成形用空間内に供呻される。このようにして、
成形用空間内に供給された原料スラリー３０の吸引脱水
およびその吸引脱水分に対応する量の原料スラリーの供
給という動作が繰り返され成形がなされる。その結果、
得られる成形体には気孔、ボイドが生じず良好な状態に
なる。つぎに、このようにして成形体が形成された段階
で、下型の吸引・圧縮パイプ１４から圧縮空気を吐出さ
せて成形体を型面から離間させると同時に、油圧シリン
ダー１９を作動させて、上型を第２図に示すように上昇
させ、上型と下型との間の空間に成形棒受は用の受は皿
（図示せず）を挿入する。この場合、上型の吸引・圧縮
パイプ４は吸引状態を保っている。したがって、成形体
３１は上型の成形用凹部３ａ内に吸引された状態で上昇
している。つぎに、その状態で上型の吸引・圧縮パイプ
４に対して、切換弁７．８を切り換えることにより圧縮
空気を送入する。その結果、上型の型面から成形体３１
が受は皿に落下する。そして、受は皿内に取り出された
成形体は、複数個集まった段階で一括してオートクレー
ブ装置等の養生装置に入れられ養生硬化される。In this configuration, as shown in FIG. 1, when the mold is closed, the molding recess 3a,
A raw material slurry 30 is placed in the molding space created by 13a.
Press in. Then, vacuum suction is performed using the suction/compression pipes 4.14 of the upper mold and the lower mold, and the raw material slurry 30
The water inside is sucked out and dehydrated. As a result, the pressure in the molding space decreases, and this decrease in pressure causes the pressure sensor 26 to
is detected, the motor 25 is driven via the signal amplifier 27 and the controller 28, and the raw material slurry 30 is pumped into the molding space from the screw set extruder 23 until the pressure in the molding space becomes constant. be done. In this way,
Molding is performed by repeating the operations of sucking and dewatering the raw material slurry 30 supplied into the molding space and supplying an amount of raw material slurry corresponding to the suction and dewatering. the result,
The resulting molded product is in good condition with no pores or voids. Next, when the molded body is formed in this way, compressed air is discharged from the suction/compression pipe 14 of the lower mold to separate the molded body from the mold surface, and at the same time, the hydraulic cylinder 19 is operated. The upper die is raised as shown in FIG. 2, and a tray (not shown) for the forming rod receiver is inserted into the space between the upper die and the lower die. In this case, the suction/compression pipe 4 of the upper die maintains the suction state. Therefore, the molded body 31 is raised while being sucked into the molding recess 3a of the upper mold. Next, in this state, compressed air is supplied to the suction/compression pipe 4 of the upper die by switching the switching valve 7.8. As a result, the molded body 31 is removed from the mold surface of the upper mold.
But Uke falls onto the plate. Then, when a plurality of molded bodies are collected, they are put into a curing device such as an autoclave device and cured.
このようにして、均質な無機質製品が効率よく製造され
るようになる。また、この方法によれば、原料スラリー
として、固形分濃度が低く水分の多い低粘度の原料スラ
リーを使用することができる。そのため、複雑な形状の
成形体を容易に形成することができ、その形成に際して
、無理な圧力が加わらないため成形体に歪が生じない。In this way, homogeneous inorganic products can be efficiently produced. Moreover, according to this method, a low viscosity raw material slurry with a low solid content concentration and high water content can be used as the raw material slurry. Therefore, it is possible to easily form a molded body having a complicated shape, and when forming the molded body, no strain is generated in the molded body because no unreasonable pressure is applied.
したがって、得られる製品には上記歪にもとづく反りが
生じない。また、上型および下型の双方から水分を吸引
除去するため、水分除去を迅速に行うことができ、成形
速度を向上させることができる。そのうえ、成形に際し
て、原料スラリーから吸引脱水された水分に相当する原
料スラリーが自動的に供給されるため、従来のように正
確な計量を行って成形型内に原料を投入するというよう
な煩雑な作業を行う必要がなく、作業工数の低減をも実
現させうるようになる。Therefore, the resulting product does not warp due to the above distortion. Further, since water is removed by suction from both the upper mold and the lower mold, the water can be quickly removed and the molding speed can be improved. In addition, during molding, raw material slurry equivalent to the moisture that has been sucked and dehydrated from the raw material slurry is automatically supplied, eliminating the need for the traditional method of accurately weighing the raw material and putting it into the mold. There is no need to perform any additional work, and the number of man-hours required can be reduced.
この発明は、透水性を有する上型と下型とでつくられる
成形用空間内に原料スラリーを圧入して成形する際、成
形用空間内の圧力が一定になるよう原料スラリーの供給
量を制御するため、従来のように、予め原料スラリーを
正確に計量し、これを成形用空間に投入するというよう
な煩雑な手間を要することなく、均質な無機質製品を製
造することができる。したがって、計量ミスや計量ロス
等を生じず、均質な製品を効率よく製造することができ
るようになる。This invention controls the supply amount of the raw material slurry so that the pressure in the molding space is constant when the raw material slurry is press-fitted into the molding space created by a water-permeable upper mold and a lower mold and molded. Therefore, a homogeneous inorganic product can be manufactured without the need for the conventional method of accurately measuring a raw material slurry and putting it into a molding space. Therefore, it becomes possible to efficiently manufacture homogeneous products without causing measurement errors or measurement losses.
つぎに、この発明を実施例にもとづいて説明する。Next, the present invention will be explained based on examples.
まず、成形装置として、第１図に示すような成形装置を
準備した。つぎに、粘土質原料４０重量部（以下「部」
と略す）、珪長石質粉末原料５５部、タルク５部からな
るセラミックス原料組成物であって、含水率が２０％程
度に設定されている原料スラリー３０を、スクリュ一式
押出機２３から成形用空間内に２０ｋｇ／ｃｉａで注ぎ
込んだ、そして、真空吸引を行って上記組成物を水切り
した。この場合、圧力センサー２６の作用により、吸引
脱水の進行につれてスクリュ一式押出機２３が作動し原
料スラリー３０が上記成形用空間内に供給された。この
ようにして１５分間成形したのち、型を開いて受は皿上
に成形体を取り出し、この成形体を３００〜５００”Ｃ
で１〜３時間かけて乾燥させたのち、１０００“Ｃ以上
の温度の焼成炉に入れて焼成した。この場合、乾燥およ
び焼成は成形体にひび割れが生じないよう予備乾燥、予
備加熱し、それに引き続く本乾燥８本加熱を行うという
ことにより実施した。このようにして得られたセラミッ
クス製品（タイル）は、３００Ｘ３００Ｘ１０ｍｍの大
形の寸法のものであり、全体的に空隙やボイドが生じて
いす均質な状態になっていた。また、反りやひび等も生
じていす極めて強度も大きかった。First, a molding apparatus as shown in FIG. 1 was prepared as a molding apparatus. Next, 40 parts by weight of the clay raw material (hereinafter referred to as "parts")
A raw material slurry 30, which is a ceramic raw material composition consisting of 55 parts of a felsic powder raw material and 5 parts of talc and whose water content is set to about 20%, is passed from a screw extruder 23 into a molding space. 20 kg/cia and vacuum suction was applied to drain the composition. In this case, due to the action of the pressure sensor 26, the screw extruder 23 was operated as the suction dehydration progressed, and the raw material slurry 30 was supplied into the molding space. After molding in this manner for 15 minutes, open the mold, take out the molded product on a tray, and heat the molded product to 300 to 500"C.
After drying it for 1 to 3 hours, it was fired in a firing oven at a temperature of 1000"C or more. In this case, the drying and firing were carried out by pre-drying and pre-heating so as not to cause cracks in the molded body. The ceramic product (tile) obtained in this way has a large size of 300 x 300 x 10 mm, and has voids and voids throughout, making it uniform. In addition, warping and cracking had occurred, and the strength was extremely high.
【図面の簡単な説明】
第１図はこの発明に用いる装置の構成図、第２図はその
動作説明図である。
ｌ・・・上台盤 ２，１２・・・型枠 ３．１３・・・
多孔質弾性体 ３ａ、１３ａ・・・成形用凹部 ２６・
・・圧力センサー ２７・・・信号増幅機 ２８・・・
制御機BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an apparatus used in the present invention, and FIG. 2 is an explanatory diagram of its operation. l...Upper base board 2,12...Formwork 3.13...
Porous elastic body 3a, 13a... recess for molding 26.
...Pressure sensor 27...Signal amplifier 28...
control machine
Claims (1)
とを用い、上記両型でつくられる成形用空間内に原料ス
ラリーを圧入しながら上記型の透水性を利用し脱水して
成形品をつくり、これを焼成工程を経由させて無機質製
品化する無機質製品の製法であつて、上記成形品の成形
の過程で、上記成形用空間内の圧力が一定になるよう原
料スラリーの供給量を制御することを特徴とする無機質
製品の製法。(1) Using an upper mold and a lower mold, at least one of which has water permeability, the raw material slurry is press-fitted into the molding space created by both molds and dehydrated using the water permeability of the mold, and molded. A manufacturing method for inorganic products, in which a product is made and then turned into an inorganic product through a firing process, and in the process of molding the molded product, the amount of raw material slurry supplied is adjusted so that the pressure in the molding space is constant. A method for producing inorganic products characterized by controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12469887A JPS63288704A (en) | 1987-05-20 | 1987-05-20 | Manufacture of inorganic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12469887A JPS63288704A (en) | 1987-05-20 | 1987-05-20 | Manufacture of inorganic product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63288704A true JPS63288704A (en) | 1988-11-25 |
| JPH0469845B2 JPH0469845B2 (en) | 1992-11-09 |
Family
ID=14891881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12469887A Granted JPS63288704A (en) | 1987-05-20 | 1987-05-20 | Manufacture of inorganic product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63288704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0353904A (en) * | 1989-07-24 | 1991-03-07 | Sintokogio Ltd | Pressure cast molding apparatus for ceramics original body |
| US5308572A (en) * | 1992-11-17 | 1994-05-03 | Ribbon Technology Corporation | Method for manufacturing a reinforced cementitious structural member |
| JP2021037752A (en) * | 2019-09-02 | 2021-03-11 | 日本碍子株式会社 | Method for producing molded body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115351U (en) * | 1973-02-01 | 1974-10-02 | ||
| JPS6218210A (en) * | 1985-07-18 | 1987-01-27 | 株式会社イナックス | Sludge casting device |
-
1987
- 1987-05-20 JP JP12469887A patent/JPS63288704A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115351U (en) * | 1973-02-01 | 1974-10-02 | ||
| JPS6218210A (en) * | 1985-07-18 | 1987-01-27 | 株式会社イナックス | Sludge casting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0353904A (en) * | 1989-07-24 | 1991-03-07 | Sintokogio Ltd | Pressure cast molding apparatus for ceramics original body |
| US5308572A (en) * | 1992-11-17 | 1994-05-03 | Ribbon Technology Corporation | Method for manufacturing a reinforced cementitious structural member |
| JP2021037752A (en) * | 2019-09-02 | 2021-03-11 | 日本碍子株式会社 | Method for producing molded body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0469845B2 (en) | 1992-11-09 |
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