WO2009119422A1 - セラミックハニカム構造体成形用金型 - Google Patents
セラミックハニカム構造体成形用金型 Download PDFInfo
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- WO2009119422A1 WO2009119422A1 PCT/JP2009/055355 JP2009055355W WO2009119422A1 WO 2009119422 A1 WO2009119422 A1 WO 2009119422A1 JP 2009055355 W JP2009055355 W JP 2009055355W WO 2009119422 A1 WO2009119422 A1 WO 2009119422A1
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- WIPO (PCT)
- Prior art keywords
- forming
- clay supply
- molding
- groove
- supply hole
- Prior art date
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
- B23P15/243—Honeycomb dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
Definitions
- the present invention relates to a ceramic honeycomb structure having a grid-shaped forming groove and a clay supply hole that is arranged in a staggered manner at each crossing portion of the forming groove or at a crossing portion of the forming groove.
- the present invention relates to a molding die.
- the ceramic honeycomb structure for example, a ceramic clay having cordierite quality is directed from the clay supply hole side of the ceramic honeycomb structure molding die (hereinafter referred to as “molding die”) to the molding groove side. Extruded to form a ceramic honeycomb shaped body, dried and fired. As shown in FIGS. 4 (a) and 4 (b), the molding die 31 includes a grid-shaped molding groove 12 and a clay supply hole 13 communicating with the molding groove.
- the supply hole 13 of the molding die 31 is provided so as to overlap the molding groove intersection 33 as shown in FIGS. 5 (a), 5 (b) and 5 (c).
- the ceramic clay introduced into the molding die 31 from the supply hole 13 is molded into a honeycomb shape by the molding groove 12.
- the ceramic honeycomb structure used for purification of automobile exhaust gas has a cell wall thickness of 0.05 to 0.5 mm to increase the opening area of the exhaust gas flow path and to raise the temperature quickly to the activation temperature when a catalyst is supported. It is getting thinner. For this reason, the width 12w (see FIG. 5C) of the molding groove 12 of the molding die 31 is also becoming narrower. On the other hand, in order to prevent deformation and bending of the molded body during molding, the depth 12d of the molding groove 12 is required to be at least 10 times the width 12w.
- the width 12w of the forming groove 12 is narrow and the depth 12d is increased, the resistance when the clay (shown by a thick dotted arrow) supplied from the clay supply hole 13 passes through the forming groove 12 increases. For this reason, the molding die is warped (exaggerated by the alternate long and short dash line), and the stress applied to the overlapping portion 14b between the clay supply hole 13 and the molding groove 12 increases.
- Japanese Patent Laid-Open No. 2006-142579 discloses a molding die in which the pitch of a plurality of cell blocks forming a molding groove is increased stepwise from the central portion toward the outer periphery, and this molding die is used. Thus, it is described that a variation in cell pitch between the central portion and the outer peripheral portion caused by deformation distortion due to nonuniform heating during drying can be suppressed, and a ceramic honeycomb structure having a uniform cell pitch can be obtained.
- Japanese Patent Application Laid-Open No. 2006-88556 discloses a ceramic honeycomb structure forming metal having lattice-shaped forming grooves and clay supply holes arranged in a staggered manner at intersections of the lattice-shaped forming grooves and communicating with the forming grooves. 5 (c), the side surface 13a of the clay supply hole 13 communicated with one molding groove 12 and the side surface of another molding groove 12 adjacent to the molding groove 12 (the side surface of the cell block 14).
- a / A molding die having L of 1 to 5 and A / D of 0.05 to 0.3 is disclosed.
- Japanese Patent Laid-Open No. 2006-88556 describes that this molding die has high strength that does not break when the die is processed or when the molded body is extruded and improves the strength of the ceramic honeycomb structure after firing. It is described as letting it.
- the molding dies described in JP-A-2006-142579 and JP-A-2006-88556 sufficiently relieve the stress applied to the overlapping portion 14b between the clay supply hole 13 and the molding groove 12 during extrusion molding. Therefore, when the width of the molding groove of the mold is narrowed, especially in response to the molding of the ceramic honeycomb structure having a thin cell wall thickness, stress concentrates on the overlapping portion 14b, and the adjacent clay supply Cracks may occur between the holes 13 and 13. Therefore, there is a demand for a molding die corresponding to the molding of a ceramic honeycomb structure having a thin cell wall thickness.
- an object of the present invention is to relieve stress applied to the overlapping portion of the clay supply hole and the forming groove during extrusion molding, and even if the width of the forming groove is narrow, the overlapping portion is cracked. It is an object of the present invention to provide a molding die that can be used for a long period of time and is difficult to progress even if cracks occur.
- the present inventor has found that the clay supply hole at the time of extrusion molding is shifted by shifting the center point of the intersection of the molding grooves and the center axis of the clay supply hole arranged at the intersection. And found that the stress applied to the overlapping portions of the forming grooves can be relaxed, and the present invention has been conceived.
- the ceramic honeycomb structure molding die of the present invention is a ceramic honeycomb structure molding die having a grid-shaped molding groove and a clay supply hole communicating with the molding groove.
- a width of 0.05 to 0.5 mm, and the clay supply holes are arranged in a staggered manner at each intersection of the molding grooves or at the intersection of the molding grooves, and the molding grooves in which the clay supply holes are arranged The average value of the distance between the center point of the intersection and the center axis of the clay supply hole is 10 to 100 ⁇ m.
- each clay supply hole arranged along one molding groove is located on both sides with respect to the center line of the molding groove.
- each clay supply hole arranged along one forming groove is located on the same side with respect to the center line of the forming groove.
- each clay supply hole arranged along one molding groove is staggered with respect to the center line of the molding groove.
- the molding die of the present invention can relieve stress applied to the overlapping portion of the clay supply hole and the molding groove during extrusion molding, so that the overlapping portion does not easily crack and does not progress even if a crack occurs. Can be used for a long time. Therefore, the width of the forming groove can be reduced, and it is suitable for forming a ceramic honeycomb structure having a thin cell wall thickness.
- FIG. 1 is a partial plan view showing a molding die according to Embodiment 1 and Example 1.
- FIG. FIG. 2 is an AA cross-sectional view of FIG.
- FIG. 2 is an enlarged partial cross-sectional view showing an overlapping portion between a clay supply hole and a forming groove in FIG. 1 (b).
- FIG. 3 is a plan view schematically showing the progress of cracks when the clay is extruded using the molding die of the first embodiment. It is a top view which shows typically the progress condition of a crack when a clay is extruded using the conventional metal mold
- die. 5 is a partial plan view showing a molding die of Embodiment 2.
- FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3 (a).
- FIG. 4 is an enlarged partial cross-sectional view showing an overlapping portion between a clay supply hole and a forming groove in FIG. 3 (b). It is a perspective view from the molding groove side which shows an example of the metal mold
- FIG. 6 is an enlarged partial plan view showing FIG. 5 (a). FIG. 6 is a cross-sectional view taken along the line CC in FIG. 5 (b).
- the center point of the intersection of the forming grooves where the clay supply holes are arranged does not coincide with the central axis of the clay supply holes
- the clay supply holes are arranged so that the intervals between the adjacent clay supply holes are not constant.
- the average value of the distance between the center of the intersection of the forming grooves and the center axis of the clay supply hole is 10 to 100 ⁇ m.
- the average value of the distance between the center of the intersection of the forming grooves and the center axis of the clay supply hole is a value obtained by measuring 10 arbitrary clay supply holes.
- the average value is less than 10 ⁇ m, the spacing between the clay supply holes is substantially constant, so that the stress applied to the overlapping portion of the clay supply holes and the molding grooves is increased during extrusion molding, and the adjacent clay is increased. Cracks are likely to occur between the supply holes.
- the average value exceeds 100 ⁇ m, when the ceramic clay is extruded and formed, the formed body may be bent or deformed because the clay is difficult to spread evenly in the forming groove.
- the average value is preferably 20 to 90 ⁇ m.
- the coordinates of the processing positions of the molding grooves and / or the clay supply holes are adjusted.
- the conventional mold processing technique can be used as it is.
- the direction in which the center axis of the clay supply hole is displaced with respect to the center of the intersection of the forming grooves may be the longitudinal groove direction of the forming groove or the transverse groove direction orthogonal to the direction, It may be shifted in both directions.
- each clay supply hole arranged along one molding groove is located on both sides with respect to the center line of the molding groove as shown in FIG. 6 (a).
- the stress applied to the overlapping portion between the clay supply hole and the forming groove is further dispersed, and the occurrence of cracks between adjacent clay supply holes can be further suppressed.
- the central axes of the clay supply holes arranged along one molding groove are located in a staggered manner with respect to the center line of the molding groove.
- each clay supply hole arranged along one molding groove is located on the same side with respect to the center line of the molding groove.
- the stress generated in the overlapping portion between the clay supply hole and the forming groove is dispersed, and the occurrence of cracks between adjacent clay supply holes can be suppressed.
- the first embodiment is a mold 11 for forming a cordierite ceramic honeycomb structure having a diameter of 120 mm after firing.
- This molding die 11 is, for example, 0.10 to 0.25% by mass of C, 1% by mass or less of Si, 2% by mass or less of Mn, 1 to 2.5% by mass of Cr, Mo + 1 / 2W of 1% or less of Mo and / Or W, 0.03 to 0.15 mass% V, 0.1 to 1 mass% Cu, 0.05 mass% or less S, 2 mass% or less Ni, the balance Fe and unavoidable impurities, 29 to After pre-hardening to 33HRC, the clay supply hole 13 and the forming groove 12 can be processed and manufactured.
- the mold material known materials can be used. For example, alloy tool steel such as JIS SK1313D61 and martensitic stainless steel such as JIS SUS420J2 are preferable.
- the forming groove 12 has a large number of vertical grooves formed with a width 12w of 0.26 mm and a pitch 12p of 1.56 mm, and perpendicular thereto. Thus, it is composed of a large number of lateral grooves formed with the same width and the same pitch.
- the clay supply holes 13 have a diameter 13d of 1.2 mm and a processing depth of 20 mm, and are arranged in a staggered manner at the intersections 33 of the forming grooves 12.
- each clay supply hole 13 is on the same side as the center line Y of the vertical forming groove along the center line X of the horizontal forming groove from the center 12c of the intersecting portion 33 of the forming groove 12. Is located at a distance Z apart.
- the distance Z for each clay supply hole 13 is not constant, and the average value of 10 points is in the range of 10 to 100 ⁇ m.
- the forming groove 12 connects the groove bottom and the side surface with a continuous curved surface without corners.
- the distance Z is calculated from the image of the molding die 11 taken from the molding groove 12 side using an image measuring machine “Quick Vision” manufactured by Mitutoyo Corporation.
- the center axis 13c of the hole 13 is obtained, and the distance between them can be obtained by averaging 10 points.
- the center 12c of the intersecting portion of the forming groove 12 is obtained by image-detecting four corners of the intersecting portion of the forming groove 12, and the center axis 13c of the clay supplying hole 13 is seen as the clay supplying hole 13 visible in the forming groove 12 portion.
- the image is obtained by detecting a part of the outline (four locations).
- the crack (CRK) between the adjacent clay supply holes 13 and 13 The progress is shown schematically in Fig. 2 (a).
- the molding die 11 has the center axis 13c of the clay supply hole 13 shifted from the center 12c of the intersecting portion 33 of the molding groove 12 in the same direction along the center line of the x-axis direction molding groove.
- the space 13w in the forming groove of the clay supply holes 13, 13 adjacent in the direction becomes longer, and the stress applied to the portion 13b where the bottom 12a of the forming groove 12 and the clay supply hole 13 intersect is relieved.
- the overlapping portion 14b causes metal fatigue, and even if a crack (CRK) occurs between the clay supply holes 13, 13, the crack (CRK) is difficult to grow, so a long-term Can be used.
- FIG. 5 the progress of cracks (CRK) between the adjacent clay supply holes 13 and 13 when the clay is similarly extruded using the conventional molding die 31 (see FIG. 5) is shown in FIG. This is schematically shown in (b).
- the interval 13w between the adjacent clay supply holes 13, 13 is constant, The stress concentrated on the intersecting portion 13b between the bottom 12a of the forming groove 12 and the clay supply hole 13 is not relaxed.
- the overlapping portion 14b causes metal fatigue, and cracks (CRK) occur between the clay supply holes 13, 13, compared with the first embodiment, the crack (CRK) It becomes larger and more easily developed, making long-term use difficult.
- the second embodiment is a die 21 for forming a cordierite ceramic honeycomb structure having a diameter of 100 mm after firing.
- the molding die 21 has a clay supply hole 13 disposed at each intersection 33 of the grid-shaped molding grooves 12, and the mold material exemplified in the first embodiment. Can be used.
- the forming groove 12 is composed of a number of vertical grooves formed with a width 12w of 0.22 mm and a pitch 12p of 1.25 mm, and a number of horizontal grooves formed with the same width and pitch so as to be orthogonal thereto.
- the clay supply holes 13 are arranged at each intersection 33 of the forming groove 12 with a diameter 13d of 1.0 mm and a processing depth of 22 mm.
- the forming groove 12 is formed after the clay supply hole 13 is processed.
- the center axis 13c of each clay supply hole 13 is staggered from the center 12c of the intersecting portion 33 of the forming groove 12 along the center line of the x-axis direction forming groove with respect to the center line of the y-axis direction forming groove.
- the forming groove 12 connects the groove bottom and the side surface with a continuous curved surface without corners.
- Fig. 3 (a) shows the progress of this.
- the molding die 21 shifts the central axis 13c of the clay supply hole 13 from the center 12c of the intersecting portion 33 of the molding groove 12 in a zigzag manner along the center line of the x-axis direction molding groove.
- the interval 23w in the molding groove of the clay supply holes 13 and 13 adjacent to each other becomes longer, and the stress applied to the portion 13b where the bottom 12a of the molding groove 12 and the clay supply hole 13 intersect is relieved.
- the overlapping portion 14b causes metal fatigue, and even if a crack (CRK) occurs between the clay supply holes 13, 13, the crack (CRK) is difficult to grow, so a long-term Can be used.
- Example 1 The mold for testing the mold is 0.20% by mass C, 0.44% by mass Si, 1.95% by mass Mn, 1.25% by mass Cr, 0.50% by mass Mo, 0.04% by mass V, 0.30% by mass
- a mold material having a composition composed of Cu, 0.015% by mass of S, the balance Fe, and inevitable impurities was pre-hardened to 31.3HRC before processing the clay supply hole 13 and the forming groove 12.
- This mold is mounted on a machining center (not shown), and with a carbide drill, as shown in FIGS. 1 (a), 1 (b) and 1 (c), a diameter 13d of 1.2 mm and a depth of 20 mm are obtained.
- the dredged clay supply holes 13 were processed in a staggered pattern at a pitch of 3.12 mm. At this time, the clay supply hole 13 was processed so as to be located on the same side with respect to the center line of the forming groove in the range of 10 to 100 ⁇ m with respect to the center of the intersecting portion of the forming groove to be formed later.
- a mold material with a clay supply hole 13 is mounted on a machine tool dedicated to grooving, and a diamond electrodeposition grindstone with a width of 0.26 mm, a number of grooves are vertically formed with a depth of 12 mm and a pitch of 12 p of 1.56 mm. After forming in the direction, horizontal molding grooves were formed in the same manner as the vertical grooves, and a molding die 11A for test was produced.
- the clay supply holes 13 were arranged in a staggered manner at the intersections 33 of the molding grooves 12 formed in a lattice shape.
- the center axis 13c of each clay supply hole 13 is on the same side as the center line Y of the vertical forming groove along the center line X of the horizontal forming groove from the center 12c of the intersecting portion 33 of the forming groove 12.
- Examples 2-6 The arrangement of the clay supply holes with respect to the center line of the forming groove, and the same as in Example 1 except that the clay supply holes 13 were formed so that the average value of the distance Z was the arrangement and value shown in Table 1. Molds 11A for Examples 2-6 were produced.
- Comparative Example 1 Except for forming the clay supply hole 13 so that the center 12c of the intersecting portion 33 of the forming groove 12 and the central axis 13c of the clay supply hole 13 coincide with each other, the test example of Comparative Example 1 was used. A molding die 31A was prepared.
- Comparative Example 2 A molding die 31B for testing of Comparative Example 2 was produced in the same manner as in Example 1 except that the clay supply holes 13 were formed so that the average value of the distance Z was 9 ⁇ m.
- Comparative Example 3 A molding die 31C for testing of Comparative Example 3 was produced in the same manner as in Example 3 except that the clay supply holes 13 were formed so that the average value of the distance Z was 110 ⁇ m.
- Cordierite ceramic clay contains 50 mass% SiO 2 , 35 mass% Al 2 O 3 and 13 mass% MgO by adjusting kaolin powder, talc powder, silica powder, alumina powder, etc.
- cordierite-forming raw material powder prepare cordierite-forming raw material powder, add 7 parts by mass of methylcellulose and hydroxypropylmethylcellulose as molding aids to 100 parts by mass of cordierite raw material, add appropriate amount of graphite as pore forming agent, dry Were mixed thoroughly, and a predetermined amount of water was added and kneaded thoroughly.
- Durability is the number of moldings when the molding die becomes unusable as a result of cracks occurring in the clay supply holes as a result of repeated extrusion molding, and the distortion of the honeycomb molded body obtained by the 100th extrusion. was visually evaluated. The number of moldings when the molding die became unusable was expressed as a relative value with the number of moldings of the mold of Comparative Example 1 as 1. The distortion of the molded body was evaluated according to the following criteria. The results are shown in Table 1. No bending or deformation of the molded body ... ⁇ Can be used as a ceramic honeycomb structure although the molded body is bent or deformed ... ⁇ Cannot be used as a ceramic honeycomb structure due to bending or deformation of the molded body
- 11A was 1.20 to 1.48 times more moldable than Comparative Example 1, and the distortion of the molded body was small.
- the molding die 31A of Comparative Example 1 in which the center 12c of the molding groove 12 and the central axis 13c of the clay supply hole 13 are aligned with the molding die 11A of Examples 1 to 6 is the number of moldings. There were few.
- the molding die 31B of Comparative Example 2 in which the average value of the distance Z between the center 12c of the molding groove 12 and the central axis 13c of the clay supply hole 13 is less than 10 ⁇ m is the same as the molding die 11A of Examples 1 to 6. On the other hand, the number of moldings was small.
Abstract
Description
実施の形態1は、焼成後の口径が120 mmとなるコーディエライト質セラミックハニカム構造体の成形用金型11である。この成形用金型11は、例えば0.10~0.25質量%のC、1質量%以下のSi、2質量%以下のMn、1~2.5%質量のCr、Mo+1/2Wとして1%質量以下のMo及び/又はW、0.03~0.15質量%のV、0.1~1質量%のCu、0.05質量%以下のS、2質量%以下のNi、残部Fe及び不可避的不純物からなる組成の金型材を、29~33HRCにプリハードンした後、坏土供給孔13と成形溝12とを加工して製造することができる。金型材としては、公知のものが使用でき、例えばJIS SK1313D61のような合金工具鋼、JIS SUS420J2のようなマルテンサイト系ステンレスが好ましい。
実施の形態2は、焼成後の口径が100 mmとなるコーディエライト質セラミックハニカム構造体の成形用金型21である。この成形用金型21は、図3(a)に示すように、格子状の成形溝12の交差部33ごとに坏土供給孔13を配置したもので、実施の形態1で例示した金型材を用いて作製できる。
成形用金型の試験用型材は、0.20質量%のC、0.44質量%のSi、1.95質量%のMn、1.25質量%のCr、0.50質量%のMo、0.04質量%のV、0.30質量%のCu、0.015質量%のS、残部Fe及び不可避的不純物からなる組成を有する金型材を、坏土供給孔13及び成形溝12の加工前に31.3HRCにプリハードンして作製した。
成形溝の中心線に対する坏土供給孔の配置、及び距離Zの平均値が表1に示した配置及び値になるように坏土供給孔13を形成した以外は実施例1と同様にして、実施例2~6の成形用金型11Aを作製した。
成形溝12の交差部33の中心12cと坏土供給孔13の中心軸13cとが一致するように坏土供給孔13を形成した以外は実施例1と同様にして、比較例1の試験用の成形用金型31Aを作製した。
距離Zの平均値が9μmとなるように坏土供給孔13を形成した以外は実施例1と同様にして、比較例2の試験用の成形用金型31Bを作製した。
距離Zの平均値が110μmとなるように坏土供給孔13を形成した以外は実施例3と同様にして、比較例3の試験用の成形用金型31Cを作製した。
実施例1~6の試験用の成形用金型11A、及び比較例1~3の試験用の各成形用金型31A、31B、31Cを用いて、コーディエライト質のセラミック坏土の押出し成形を繰り返して耐久性試験を行った。コーディエライト質のセラミック坏土は、カオリン粉末、タルク粉末、シリカ粉末、アルミナ粉末等を調整して、50質量%のSiO2、35質量%のAl2O3及び13質量%のMgOを含むコーディエライト生成原料粉末を調製し、成形助剤としてメチルセルロース及びヒドロキシプロピルメチルセルロースをコージェライト化原料100質量部に対して総量で7質量部配合添加し、造孔剤としてグラファイトを適量添加し、乾式で十分混合し、規定量の水を添加して十分に混練して作製した。
成形体に曲がりや変形の生じていないもの・・・○
成形体に曲がりや変形は生じているもののセラミックハニカム構造体として使用可能なもの・・・△
成形体に曲がりや変形が生じてセラミックハニカム構造体として使用できないもの・・・×
Claims (4)
- 格子状の成形溝と、前記成形溝と連通する坏土供給孔とを有するセラミックハニカム構造体成形用金型であって、前記成形溝の幅が0.05~0.5 mmであり、前記坏土供給孔が前記成形溝の交差部ごと、又は前記成形溝の交差部に千鳥状に配置されており、坏土供給孔が配置された成形溝の交差部の中心点と、その坏土供給孔の中心軸との距離の平均値が10~100μmであることを特徴とするセラミックハニカム構造体成形用金型。
- 請求項1に記載のセラミックハニカム構造体成形用金型において、1本の成形溝に沿って配置された各坏土供給孔の中心軸が、その成形溝の中心線に対して両側に位置することを特徴とするセラミックハニカム構造体成形用金型。
- 請求項1に記載のセラミックハニカム構造体成形用金型において、1本の成形溝に沿って配置された各坏土供給孔の中心軸が、前記成形溝の中心線に対して同じ側に位置することを特徴とするセラミックハニカム構造体成形用金型。
- 請求項1に記載のセラミックハニカム構造体成形用金型において、1本の成形溝に沿って配置された各坏土供給孔の中心軸が、前記成形溝の中心線に対して千鳥状に位置することを特徴とするセラミックハニカム構造体成形用金型。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09724619.3A EP2269790B1 (en) | 2008-03-28 | 2009-03-18 | Die for forming ceramic honeycomb structure |
JP2010505583A JP5360051B2 (ja) | 2008-03-28 | 2009-03-18 | セラミックハニカム構造体成形用金型 |
US12/934,025 US8282385B2 (en) | 2008-03-28 | 2009-03-18 | Die for molding ceramic honeycomb structure |
CN2009801102851A CN101977742B (zh) | 2008-03-28 | 2009-03-18 | 蜂窝陶瓷结构体成形用模具 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2008087514 | 2008-03-28 | ||
JP2008-087514 | 2008-03-28 |
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WO2009119422A1 true WO2009119422A1 (ja) | 2009-10-01 |
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Family Applications (1)
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PCT/JP2009/055355 WO2009119422A1 (ja) | 2008-03-28 | 2009-03-18 | セラミックハニカム構造体成形用金型 |
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US (1) | US8282385B2 (ja) |
EP (1) | EP2269790B1 (ja) |
JP (1) | JP5360051B2 (ja) |
CN (1) | CN101977742B (ja) |
WO (1) | WO2009119422A1 (ja) |
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WO2013183612A1 (ja) * | 2012-06-04 | 2013-12-12 | 日本碍子株式会社 | ハニカム構造体成形用口金及びその製造方法 |
WO2016039330A1 (ja) * | 2014-09-08 | 2016-03-17 | イビデン株式会社 | 押出成形用金型 |
CN113715292A (zh) * | 2021-08-17 | 2021-11-30 | 山东大学 | 一种土工格栅及防止格栅制造中拉断筋条的工艺方法 |
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JP5904193B2 (ja) * | 2013-11-15 | 2016-04-13 | 株式会社デンソー | ハニカム構造体の製造方法 |
JP6747337B2 (ja) * | 2017-02-24 | 2020-08-26 | 株式会社デンソー | ハニカム構造体成形用金型及びハニカム構造体成形用金型の製造方法 |
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CN113715292A (zh) * | 2021-08-17 | 2021-11-30 | 山东大学 | 一种土工格栅及防止格栅制造中拉断筋条的工艺方法 |
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CN101977742A (zh) | 2011-02-16 |
JPWO2009119422A1 (ja) | 2011-07-21 |
EP2269790A4 (en) | 2013-04-03 |
EP2269790A1 (en) | 2011-01-05 |
EP2269790B1 (en) | 2015-01-21 |
JP5360051B2 (ja) | 2013-12-04 |
US20110027406A1 (en) | 2011-02-03 |
CN101977742B (zh) | 2012-05-23 |
US8282385B2 (en) | 2012-10-09 |
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