JPH0752129A - Honeycomb structure extrusion apparatus and production of honeycomb structure - Google Patents
Honeycomb structure extrusion apparatus and production of honeycomb structureInfo
- Publication number
- JPH0752129A JPH0752129A JP5201594A JP20159493A JPH0752129A JP H0752129 A JPH0752129 A JP H0752129A JP 5201594 A JP5201594 A JP 5201594A JP 20159493 A JP20159493 A JP 20159493A JP H0752129 A JPH0752129 A JP H0752129A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb structure
- inclined surface
- space
- outer peripheral
- holding frame
- 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
- 238000001125 extrusion Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 46
- 239000012778 molding material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000000873 masking effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
- B28B3/269—For multi-channeled structures, e.g. honeycomb structures
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はハニカム構造体、特に壁
厚がリブ厚の５倍以内程度で外周部のセル変形のないハ
ニカム構造体を押出成形するのに使用するハニカム構造
体押出装置およびこの押出装置を使用したハニカム構造
体の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb structure extrusion apparatus for use in extruding a honeycomb structure, particularly a honeycomb structure having a wall thickness within about 5 times the rib thickness and no cell deformation in the outer peripheral portion. The present invention relates to a method for manufacturing a honeycomb structure using this extrusion device.
【０００２】[0002]
【従来の技術】従来から、セラミックス等からなる成形
材料を押出成形して成形体を得るために押出装置が使用
されている。その一例として、ハニカム構造体を押出成
形するために、互いに連結した薄壁よりなるハニカム構
造体を排出する排出通路を一端に開口し、他端を一定深
さまで独立して設けられた多数の供給通路に連結してな
り、排出通路を有する排出部の周縁部が外周方向に傾斜
した傾斜面に形成された口金と、この口金の傾斜面に対
向する押え枠とを有するハニカム構造体押出装置が使用
されている。2. Description of the Related Art Conventionally, an extrusion apparatus has been used to extrude a molding material such as ceramics to obtain a molded body. As an example, in order to extrude a honeycomb structure, a discharge passage for discharging a honeycomb structure composed of thin walls connected to each other is opened at one end, and the other end is provided with a large number of independent supplies up to a certain depth. A honeycomb structure extruding device having a die formed of an inclined surface which is connected to a passage and has a discharge portion having a discharge passage and an inclined surface inclined in the outer peripheral direction, and a holding frame facing the inclined surface of the die. It is used.
【０００３】[0003]
【発明が解決しようとする課題】上述したハニカム構造
体押出装置の一例として、本出願人による特公昭５４−
２８８５０号公報では、口金の排出部の周縁部が外周方
向に傾斜したテーパーを有するとともに、押え枠が口金
テーパー部に対し５°〜４５°の傾斜角を有するハニカ
ム構造体押出装置を使用して、薄壁（リブ）の４倍以上
の肉厚を有する一体構造の外周壁を持った機械的強度の
強いハニカム構造体を得る技術が開示されている。しか
しながら、この技術では、薄壁（リブ）の肉厚が薄くな
るに従い外周部のリブに変形が生じやすくなり外周壁を
厚く成形することが難しくなり、又、外周壁の厚さを５
倍以内程度と薄くした場合、外周壁の形成が不安定とな
り外周壁厚の調整が困難な問題があった。As an example of the above-mentioned honeycomb structure extruding apparatus, Japanese Patent Publication No. 54-
According to Japanese Patent No. 28850, a honeycomb structure extruding apparatus is used in which a peripheral portion of a die discharge portion has a taper inclined in an outer peripheral direction, and a holding frame has an inclination angle of 5 ° to 45 ° with respect to the die taper portion. There is disclosed a technique for obtaining a honeycomb structure having a strong mechanical strength, which has an integrally formed outer peripheral wall having a wall thickness four times or more that of a thin wall (rib). However, with this technique, as the thickness of the thin wall (rib) becomes thinner, the ribs on the outer peripheral portion are more likely to be deformed, making it difficult to form the outer peripheral wall thick.
If the thickness is reduced to less than twice, the formation of the outer peripheral wall becomes unstable, and it is difficult to adjust the outer peripheral wall thickness.
【０００４】また、特公平３−１７６４４号公報では、
口金の排出部の周縁部が外周方向に傾斜したテーパーを
有するとともに、押え枠が口金テーパー部と同じテーパ
ー角を有するハニカム構造体押出装置を使用して、周縁
部のセルのつぶれを防止したハニカム構造体を得る技術
が開示されている。しかしながら、この技術でも上述し
た例と同様に、外周壁の厚さを薄くした場合、外周壁の
形成が不安定となり外周壁厚の調整が困難となる問題が
あった。Further, in Japanese Patent Publication No. 3-17644,
Using a honeycomb structure extrusion device in which the peripheral portion of the die discharge portion has a taper inclined in the outer peripheral direction, and the holding frame has the same taper angle as the die taper portion, the honeycomb in which the collapse of the cells in the peripheral portion is prevented is used. Techniques for obtaining a structure are disclosed. However, even with this technique, when the thickness of the outer peripheral wall is reduced, the formation of the outer peripheral wall becomes unstable and it becomes difficult to adjust the outer peripheral wall thickness, as in the above-described example.
【０００５】さらに、特開平４−３４４２１７号公報で
は、口金の排出部の周縁部が外周方向に傾斜したテーパ
ーを有し、排出部の外周に外周リングを設けるととも
に、土量調整空間及び調整手段を有するハニカム構造体
押出装置を使用して、加熱構造の湿潤つよさと構造的完
全性の両方を改良した外周壁を有するハニカム構造体を
得る技術が開示されている。しかしながら、この技術で
は、口金構造が複雑であるためシステムの作製が困難で
あり、口金の排出通路と外周リングとの接触部で口金の
セルブロックが欠落する部分がところどころに発生し、
該セルブロック欠落部からの成形材料の供給が過剰とな
り、外周壁厚の調整が困難な問題があった。Further, in Japanese Unexamined Patent Publication No. 4-344217, the peripheral portion of the discharge part of the die has a taper inclined in the outer peripheral direction, an outer peripheral ring is provided on the outer periphery of the discharge part, and a soil amount adjusting space and adjusting means are provided. There is disclosed a technique for obtaining a honeycomb structure having an outer peripheral wall in which both the wet strength and the structural integrity of the heating structure are improved by using the honeycomb structure extrusion apparatus having the above. However, in this technology, it is difficult to manufacture a system because the structure of the base is complicated, and there are some parts where the cell block of the base is missing at the contact portion between the discharge passage of the base and the outer ring,
There was a problem that it was difficult to adjust the outer peripheral wall thickness because the amount of the molding material supplied from the cell block missing portion was excessive.
【０００６】本発明の目的は上述した課題を解消して、
均一な膜厚の外周壁を有し外周部にセル変形のない薄壁
ハニカム構造体を得ることができるハニカム構造体押出
装置およびこれを使用したハニカム構造体の製造方法を
提供しようとするものである。The object of the present invention is to solve the above problems,
To provide a honeycomb structure extrusion device capable of obtaining a thin wall honeycomb structure having an outer peripheral wall with a uniform film thickness and no cell deformation in the outer peripheral part, and a method for manufacturing a honeycomb structure using the same. is there.
【０００７】[0007]
【課題を解決するための手段】本発明のハニカム構造体
押出装置は、互いに連結した薄壁よりなるハニカム構造
体を排出する排出通路を一端に開口し、他端を一定深さ
まで独立して設けられた多数の供給通路に連結してな
り、排出通路を有する排出部の周縁部が外周方向に傾斜
した傾斜面に形成された口金と、この口金の傾斜面に対
向する押え枠とを有するハニカム構造体押出装置におい
て、前記傾斜面と前記押え枠との間に形成される空間の
うち、最内周方向の空間がそれ以外の空間よりも狭いこ
とを特徴とするものである。In a honeycomb structure extrusion apparatus of the present invention, a discharge passage for discharging a honeycomb structure composed of thin walls connected to each other is opened at one end, and the other end is independently provided to a certain depth. Honeycomb having a die which is connected to a large number of supply passages and has a discharge portion having a discharge portion, and a peripheral portion of the discharge portion having an inclined surface inclined in the outer peripheral direction, and a holding frame facing the inclined surface of the die. In the structure extrusion device, a space formed between the inclined surface and the holding frame is characterized in that the space in the innermost circumferential direction is narrower than the other spaces.
【０００８】また、本発明のハニカム構造体の製造方法
は、上記構成のハニカム構造体押出装置を使用して成形
材料を押出成形し、ハニカム構造体を得ることを特徴と
するものである。Further, the method for manufacturing a honeycomb structure of the present invention is characterized in that the honeycomb structure is extruded by using the honeycomb structure extruding apparatus having the above-mentioned structure to obtain a honeycomb structure.
【０００９】[0009]
【作用】上述した構成において、押出成形時にハニカム
構造体の外壁の形成に寄与する、口金の排出通路を有す
る排出部のテーパーを有する周縁部の傾斜面とこの傾斜
面に対向する押え枠との間の空間のうち、最内周方向の
空間をそれ以外の空間よりも狭くすること、すなわちテ
ーパーを有する傾斜面上の空間に成形材料の溜め部を形
成することにより、空間中の成形材料に対する局所的な
圧力が緩和され、壁厚がリブ厚の５倍以内程度と薄壁の
場合でも、均一な膜厚の外周壁を有するハニカム構造体
を外周部にセル変形を生じることなく容易に形成するこ
とができる。In the above-mentioned structure, the inclined surface of the tapered peripheral portion of the discharge portion having the discharge passage of the die, which contributes to the formation of the outer wall of the honeycomb structure at the time of extrusion molding, and the holding frame facing the inclined surface. Among the spaces between, by making the space in the innermost circumferential direction narrower than the other spaces, that is, by forming the reservoir of the molding material in the space on the inclined surface having a taper, the molding material in the space Even if the local pressure is relieved and the wall thickness is thin within about 5 times the rib thickness, a honeycomb structure having an outer peripheral wall with a uniform film thickness can be easily formed without causing cell deformation in the outer peripheral portion. can do.
【００１０】なお、傾斜面の押出方向に垂直な軸線に対
して成す傾斜角θ1 については特に限定するものでない
が、２０°〜６０°であると好ましい。ここで、傾斜角
θ1 は、２０°未満では上記空間中の成形材料に大きな
内周方向の分力が発生してハニカム構造体に半径方向の
変形が発生する場合があるとともに、６０°を超えると
ハニカム構造体の外周寸法の調整が不可能となる場合が
ある。また、傾斜面に対向する押え枠の内向面の最内周
部の接線の傾斜面に対する傾斜角θ 2 については、上述
したように最内周方向の空間がそれ以外の空間よりも狭
くなっていれば、特に特定する必要はなく、上記関係と
矛盾しないすべての角度すなわち傾斜角θ2 ：０°〜９
０°をとることができる。It should be noted that the inclined surface is opposed to the axis perpendicular to the extrusion direction.
Angle of inclination θ1 Is not particularly limited
Is preferably 20 ° to 60 °. Where the tilt angle
θ1 Is less than 20 °, the molding material in the space is large.
A component force in the inner circumferential direction is generated and the honeycomb structure is
Deformation may occur, and if it exceeds 60 °
In some cases, it becomes impossible to adjust the outer peripheral dimensions of the honeycomb structure.
is there. In addition, the innermost circumference of the inward surface of the holding frame facing the inclined surface
Angle of inclination of the tangent to the inclined surface θ 2 About the above
As described above, the innermost space is narrower than the other spaces.
If it is, it is not necessary to specify it in particular,
All consistent angles, ie tilt angle θ2 : 0 ° to 9
Can be 0 °.
【００１１】さらに、θ1 とθ2 の相互の関係について
は、θ1 ＋θ2 ≦９０°であると好ましい。θ1 ＋θ2
が９０°を超えると、傾斜角と押え枠との間の空間中に
通過すべき成形材料が溜まってしまう窪みが発生する場
合がある。さらにまた、口金の傾斜面および押え枠の内
向面の形状についても特に限定されるものではなく、そ
れぞれの縦断面において連続的に変化する連続線でも段
階的に変化する非連続線でもどちらでも良い。Further, regarding the mutual relationship between θ 1 and θ 2 , it is preferable that θ 1 + θ 2 ≦ 90 °. θ 1 + θ 2
When the angle exceeds 90 °, there may be a dent in which the molding material to be passed is accumulated in the space between the tilt angle and the holding frame. Furthermore, the shapes of the inclined surface of the die and the inward surface of the holding frame are not particularly limited, and may be continuous lines that change continuously or discontinuous lines that change stepwise in each longitudinal section. .
【００１２】また、口金の供給通路の成形材料供給側に
近接して所定の孔明板を設置すると、外周壁を形成する
部分に供給される材料の速度を調整することが可能とな
り、外周壁を形成する材料が所望量より過剰に供給され
た場合のその内側のセルを押し潰すことにより発生する
セル変形を解消できるため好ましい。なお、この孔明板
については、本出願人による実開昭６３−１１２００４
号公報で開示した孔明板を使用すると好ましい。If a predetermined perforated plate is installed in the vicinity of the molding material supply side of the die supply passage, the speed of the material supplied to the portion forming the outer peripheral wall can be adjusted, and the outer peripheral wall can be adjusted. It is preferable because when the material to be formed is supplied in excess of the desired amount, the cell deformation generated by crushing the cells inside thereof can be eliminated. Regarding the perforated plate, the applicant of the present invention has disclosed the actual opening of 63-112004.
It is preferable to use the perforated plate disclosed in the publication.
【００１３】[0013]
【実施例】図１は本発明のハニカム構造体押出装置の主
要部の部分断面を示す図である。図１に示す実施例にお
いて、口金１は、ハニカム構造体を押出するための互い
に連結した排出通路８と、この排出通路８の一端と部分
的に連結した一定深さまで独立して設けられた多数の供
給通路９とから構成され、排出通路８を有する排出部１
０の周縁部が外周方向に傾斜角度θ1 で傾斜した傾斜面
６を設けている。口金１の傾斜面６に対向する位置に
は、口金１とスペーサ３を介して固定した押え枠２を設
け、この押え枠２の対向面７と傾斜面６との間に空間１
１を形成している。EXAMPLE FIG. 1 is a view showing a partial cross section of a main part of a honeycomb structure extrusion apparatus of the present invention. In the embodiment shown in FIG. 1, the die 1 is provided with a plurality of discharge passages 8 for extruding a honeycomb structure, and a plurality of independent discharge passages 8 which are partially connected to one end of the discharge passage 8 and have a certain depth. And a supply passage 9 and a discharge portion 1 having a discharge passage 8
A peripheral surface of 0 is provided with an inclined surface 6 inclined in the outer peripheral direction at an inclination angle θ 1 . A holding frame 2 fixed via a base 1 and a spacer 3 is provided at a position facing the inclined surface 6 of the mouthpiece 1, and a space 1 is provided between the facing surface 7 of the holding frame 2 and the inclined surface 6.
1 is formed.
【００１４】口金１の供給通路９の成形材料供給側に
は、同軸状に近接して、成形材料供給量の微調整を行う
孔明板４と、この孔明板４の外側に形成した成形材料供
給量の粗調整を行うマスキングプレート５とを形成して
いる。この孔明板４は、中心軸が各供給通路９と一致す
る貫通孔１２を有するとともに、成形材料入口側端面に
おいて押出すべきハニカム構造体形状から外側におおよ
そ外れた部分に貫通孔１３が設けられている。On the molding material supply side of the supply passage 9 of the die 1, a perforated plate 4 is provided coaxially in close proximity to the molding material supply side, and a molding material supply formed on the outer side of the perforated plate 4 is performed. A masking plate 5 for roughly adjusting the amount is formed. The perforated plate 4 has a through hole 12 whose central axis coincides with each supply passage 9, and a through hole 13 is provided at a portion outside the honeycomb structure shape to be extruded at the end surface of the molding material inlet side. ing.
【００１５】上述したハニカム構造体押出装置の構成は
従来から公知のものであり、本発明で特徴的なのは、空
間１１の構造である。すなわち本発明では、図１におい
て、最内周方向の空間１１であるａ部をそれ以外の空間
１１であるｂ部よりも狭くすることにより、傾斜面上の
空間１１が成形材料の溜め部の役目を果たしている点で
ある。このような構造の本発明のハニカム構造体押出装
置を使用すれば、空間１１内の成形材料に対する局所的
な圧力が緩和され、例えば壁厚がリブ厚の５倍以内程度
の薄壁の場合でも、均一な膜厚の外周壁を有し、外周部
にセル変形のないハニカム構造体を容易に形成すること
ができる。The structure of the honeycomb structure extrusion apparatus described above is conventionally known, and the feature of the present invention is the structure of the space 11. That is, in the present invention, in FIG. 1, the space a on the inclined surface is made smaller than the space b of the other space 11 by making the space a of the space 11 in the innermost circumferential direction narrower than the space b of the other space 11. This is the point where it plays a role. When the honeycomb structure extrusion apparatus of the present invention having such a structure is used, the local pressure on the molding material in the space 11 is relaxed, and for example, even when the wall thickness is a thin wall of about 5 times the rib thickness or less. It is possible to easily form a honeycomb structure having an outer peripheral wall with a uniform film thickness and no cell deformation in the outer peripheral portion.
【００１６】上述した傾斜角θ1 については、ハニカム
構造体の半径方向の変形および外周寸法の調整の可否等
の点から、２０°〜６０°であると好ましい。また、傾
斜面６に対向する押え枠１１の内周面７の最内周部の接
線の傾斜面６に対する傾斜角をθ2 とすると、θ2 が０
°〜９０°であり、かつθ1 ＋θ2 ≦９０°であると好
ましい。The above-described inclination angle θ 1 is preferably 20 ° to 60 ° from the viewpoint of the radial deformation of the honeycomb structure and the adjustment of the outer peripheral dimension. Further, if the inclination angle of the tangent of the innermost peripheral portion of the inner peripheral surface 7 of the pressing frame 11 facing the inclined surface 6 to the inclined surface 6 is θ 2 , θ 2 is 0.
It is preferable that the angle is 90 ° to 90 ° and θ 1 + θ 2 ≦ 90 °.
【００１７】また、口金１の傾斜面６および押え枠２の
内向面７の縦断面の形状については、図１に示す例では
それらが直線の例を示したが、空間１１の形状が本発明
を満たすものであれば、すなわちａ部がｂ部より狭けれ
ば、どのような形状をとっても良いことはいうまでもな
い。その一例を図２および図３に示す。ここで、図２に
示す例は、傾斜面６および内向面７の対向する部分に段
部がなく連続線からなる例を、図３に示す例は、傾斜面
６および内向面７の対向する部分の傾斜面６および／ま
たは内向面７に段部が存在して非連続線からなる例を、
それぞれ示している。Regarding the shape of the longitudinal section of the inclined surface 6 of the mouthpiece 1 and the inward surface 7 of the holding frame 2, the example shown in FIG. 1 is a straight line, but the shape of the space 11 is the present invention. It goes without saying that any shape may be adopted as long as it satisfies the condition, that is, if the portion a is narrower than the portion b. An example thereof is shown in FIGS. 2 and 3. Here, the example shown in FIG. 2 is an example in which the inclined surface 6 and the inwardly facing surface 7 are not continuous and have a continuous line, and the example shown in FIG. 3 is the inclined surface 6 and the inwardly facing surface 7 facing each other. An example in which a step portion is present on the inclined surface 6 and / or the inward surface 7 of the portion and is formed by a discontinuous line
Shown respectively.
【００１８】なお、上述した各構成部分の材質や大き
さ、さらには押出装置の他の部分の構成については特に
説明しなかったが、それはこれらの点に本発明の特徴が
あるわけではないためで、各構成部材の材質や大きさは
従来から公知のものを使用できることはいうまでもな
い。Although the material and size of each of the above-mentioned constituent parts and the structure of the other parts of the extrusion apparatus have not been particularly described, it is not because these points are characteristic of the present invention. It goes without saying that the materials and sizes of the respective constituent members can be conventionally known ones.
【００１９】本発明は上述した実施例にのみ限定される
ものでなく、幾多の変形、変更が可能である。例えば、
上述した実施例では、孔明板４およびマスキングプレー
ト５を形成したハニカム構造体押出装置を示したが、孔
明板４およびマスキングプレート５は設けなくても本発
明を達成できることはいうまでもない。The present invention is not limited to the above-mentioned embodiments, but various modifications and changes can be made. For example,
Although the honeycomb structure extruding device in which the perforated plate 4 and the masking plate 5 are formed is shown in the above-described embodiment, it goes without saying that the present invention can be achieved without providing the perforated plate 4 and the masking plate 5.
【００２０】[0020]
【発明の効果】以上の説明から明かなように、本発明に
よれば、押出成形時にハニカム構造体の外壁の形成に寄
与する、口金の排出通路を有する排出部のテーパーを有
する周縁部の傾斜面とこの傾斜面に対向する押え枠との
間の空間のうち、最内周方向の空間をそれ以外の空間よ
りも狭くしているため、すなわちテーパーを有する傾斜
面上の空間に成形材料の溜め部を形成しているため、こ
の空間中の成形材料に対する局所的な圧力が緩和され、
例えば壁厚がリブ厚の５倍以内程度と薄壁の場合でも、
均一な膜厚の外周壁を有するハニカム構造体を容易に形
成することができる。As is apparent from the above description, according to the present invention, the inclination of the tapered peripheral portion of the discharge portion having the discharge passage of the die, which contributes to the formation of the outer wall of the honeycomb structure during extrusion molding. Of the space between the surface and the holding frame facing the inclined surface, the space in the innermost circumferential direction is made narrower than the other spaces, that is, the space on the inclined surface having the taper Since the reservoir is formed, the local pressure on the molding material in this space is relieved,
For example, even if the wall thickness is about 5 times the rib thickness or a thin wall,
A honeycomb structure having an outer peripheral wall with a uniform film thickness can be easily formed.
【図１】本発明のハニカム構造体押出装置の主要部の部
分断面を示す図である。FIG. 1 is a view showing a partial cross section of a main part of a honeycomb structure extrusion apparatus of the present invention.
【図２】本発明における傾斜面と内向面の変形例を説明
するための図である。FIG. 2 is a diagram for explaining a modification of the inclined surface and the inward surface in the present invention.
【図３】本発明における傾斜面と内向面の変形例を説明
するための図である。FIG. 3 is a diagram for explaining a modified example of the inclined surface and the inward surface in the present invention.
１ 口金、２ 押え枠、３ スペーサ、４ 孔明板、５
マスキングプレート、６ 傾斜面、７ 対向面、８
排出通路、９ 供給通路、１０ 排出部、１１空間、１
２ 貫通孔、１３ 貫通孔1 mouthpiece, 2 presser frame, 3 spacer, 4 hole plate, 5
Masking plate, 6 inclined surface, 7 facing surface, 8
Discharge passage, 9 supply passage, 10 discharge portion, 11 space, 1
2 through holes, 13 through holes
Claims (7)
体を排出する排出通路を一端に開口し、他端を一定深さ
まで独立して設けられた多数の供給通路に連結してな
り、排出通路を有する排出部の周縁部が外周方向に傾斜
した傾斜面に形成された口金と、この口金の傾斜面に対
向する押え枠とを有するハニカム構造体押出装置におい
て、前記傾斜面と前記押え枠との間に形成される空間の
うち、最内周方向の空間がそれ以外の空間よりも狭いこ
とを特徴とするハニカム構造体押出装置。1. A discharge passage for discharging a honeycomb structure composed of thin walls connected to each other, the discharge passage being opened at one end, and the other end being connected to a plurality of supply passages independently provided to a certain depth. In a honeycomb structure extrusion device having a die having a peripheral edge of a discharge portion formed on an inclined surface inclined in the outer peripheral direction, and a holding frame facing the inclined surface of the die, the inclined surface and the holding frame Among the spaces formed between the spaces, the space in the innermost circumferential direction is narrower than the other spaces, and a honeycomb structure extrusion device.
て成す傾斜角θ1 が２０°〜６０°である請求項１記載
のハニカム構造体押出装置。2. The honeycomb structure extrusion apparatus according to claim 1, wherein an inclination angle θ 1 formed with respect to an axis line perpendicular to the extrusion direction of the inclined surface is 20 ° to 60 °.
内周部の接線の前記傾斜面に対する傾斜角θ2 が０°〜
９０°であり、かつθ1 ＋θ2 ≦９０°である請求項２
記載のハニカム構造体押出装置。3. A tilt angle theta 2 is 0 ° with respect to the inclined surface of the tangent of the innermost portion of the inwardly facing surface of the pressing frame which is opposed to the inclined surface to the
3. 90 ° and θ 1 + θ 2 ≦ 90 °.
The described honeycomb structure extrusion apparatus.
断面において連続線である請求項１〜３のいずれか１項
に記載のハニカム構造体押出装置。4. The honeycomb structure extruding apparatus according to claim 1, wherein the facing portions of the inclined surface and the holding frame are continuous lines in a vertical cross section.
縦断面において非連続線である請求項１〜３のいずれか
１項に記載のハニカム構造体押出装置。5. The honeycomb structure extruding apparatus according to claim 1, wherein the inclined surface or the facing portion of the holding frame is a discontinuous line in a vertical cross section.
接して、各貫通孔の中心軸が各供給通路と一致する中心
空洞の孔明板を設置した請求項１〜５のいずれか１項に
記載のハニカム構造体押出装置。6. A perforated plate having a central cavity in which the central axis of each through hole coincides with each supply passage is provided in the vicinity of the molding material supply side coaxially of the supply passage. Item 2. The honeycomb structure extrusion apparatus according to item.
カム構造体押出装置を使用して成形材料を押出成形し、
ハニカム構造体を得ることを特徴とするハニカム構造体
の製造方法。7. A molding material is extruded using the honeycomb structure extruding apparatus according to claim 1.
A method for manufacturing a honeycomb structure, which comprises obtaining a honeycomb structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5201594A JP2925893B2 (en) | 1993-08-13 | 1993-08-13 | Honeycomb structure extrusion apparatus and method for manufacturing honeycomb structure using the same |
| DE4428492A DE4428492C2 (en) | 1993-08-13 | 1994-08-11 | Honeycomb structure extrusion device and method for producing honeycomb structure bodies using such an extrusion device |
| BE9400739A BE1009797A5 (en) | 1993-08-13 | 1994-08-12 | Extrusion device body in its structure of bees and method for producing a body structure honeycomb using the device extrusion. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5201594A JP2925893B2 (en) | 1993-08-13 | 1993-08-13 | Honeycomb structure extrusion apparatus and method for manufacturing honeycomb structure using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0752129A true JPH0752129A (en) | 1995-02-28 |
| JP2925893B2 JP2925893B2 (en) | 1999-07-28 |
Family
ID=16443647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5201594A Expired - Lifetime JP2925893B2 (en) | 1993-08-13 | 1993-08-13 | Honeycomb structure extrusion apparatus and method for manufacturing honeycomb structure using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2925893B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942260A (en) * | 1995-09-19 | 1999-08-24 | Nippondenso Co., Ltd. | Extruding device for producing honeycomb structure |
| EP1649994A2 (en) | 2004-10-21 | 2006-04-26 | Ngk Insulators, Ltd. | Die for extrusion forming of ceramics |
| JP2006281537A (en) * | 2005-03-31 | 2006-10-19 | Ngk Insulators Ltd | Extrusion molding machine of honeycomb structure |
| EP2082856A2 (en) | 2008-01-17 | 2009-07-29 | Ngk Insulators, Ltd. | Mold for extrusion forming of ceramic articles |
-
1993
- 1993-08-13 JP JP5201594A patent/JP2925893B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942260A (en) * | 1995-09-19 | 1999-08-24 | Nippondenso Co., Ltd. | Extruding device for producing honeycomb structure |
| EP1649994A2 (en) | 2004-10-21 | 2006-04-26 | Ngk Insulators, Ltd. | Die for extrusion forming of ceramics |
| JP2006281537A (en) * | 2005-03-31 | 2006-10-19 | Ngk Insulators Ltd | Extrusion molding machine of honeycomb structure |
| EP2082856A2 (en) | 2008-01-17 | 2009-07-29 | Ngk Insulators, Ltd. | Mold for extrusion forming of ceramic articles |
| US8371835B2 (en) | 2008-01-17 | 2013-02-12 | Ngk Insulators, Ltd. | Mold for extrusion forming of ceramic articles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2925893B2 (en) | 1999-07-28 |
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