CN1817452A - Ceramic honeycomb structure body and manufacturing method thereof - Google Patents
Ceramic honeycomb structure body and manufacturing method thereof Download PDFInfo
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Abstract
A manufacturing method of a ceramic honeycomb structure body has extrusion molding with ceramic raw materials in a honeycomb structure, cutting to cut a molded one into plural mold bodies, each mold body having an outer peripheral skin part and plural cell walls. The manufacturing method performs a drying process of drying each mold body, a chamfering process of chamfer an edge of a corner of the mold body, and a burning process of burning the mold body in order to form the ceramic honeycomb structure body. The chamfered part has crystal particles of a cordierite 2MgO.2Al2.O3.5SiO2.
Description
Technical field
The present invention relates to a kind of ceramic honeycomb structure and manufacture method thereof, it is used in the catalyst carrier and filter of vehicle tai-gas clean-up device.
Background technology
Ceramic honeycomb structure is widely used as the catalyst carrier and the various filter of vehicle tai-gas clean-up device usually.It is known that ceramic honeycomb structure absorbs the particulate contaminant that vehicle diesel engines discharges as filter.
Figure 14 shows that the perspective view of traditional ceramic honeycomb structure 9.Ceramic honeycomb structure 9 is made up of appearance skin zone 92 and a plurality of honeycomb wall 93, and honeycomb wall 93 is formed in the honeycomb structure that is centered on by appearance skin zone 92.For the heat energy by tail gas comes the catalyst in the structure 9 is worked or with its activation and purify wherein tail gas, ceramic honeycomb structure 9 is contained in the steel bushing and is installed on the exhaust system.
At first, in the manufacture method of traditional ceramic honeycomb structure, ceramic raw material is extruded moulding and cuts to form a plurality of honeycomb moldings.Then, dry and calcine honeycomb molding 90 so that form ceramic honeycomb structure 9.
Yet, in the processing of manufacturing process, transmit or transport in the process of ceramic moulded bodies,, just might on the edge 94 of honeycomb molding 90 end faces 912, produce and break because stress concentrates on the edge 94 of honeycomb molding 90 end faces 912.Further, when it is contained in the steel bushing, the edge 94 of honeycomb molding 90 end faces 912 is contacted with steel bushing.In the process of producing, the difficulty that this has just introduced assembling honeycomb molding 90 also might cause the edge fracture of honeycomb molding 90, and produces in honeycomb molding 90 and break.
In order to eliminate traditional shortcoming as described above, a kind of method of traditional edge chamfer at ceramic honey comb molding end face in being the Japanese patent application of No.JP-2002-18290, publication number has been proposed.This method can reduce the appearance of edge breakage in the ceramic honeycomb structure, and further improves assembling so that ceramic honeycomb structure is received in the steel bushing.
In traditional production method, the chamfering of ceramic moulded bodies is finished after calcining honeycomb molding.Yet, because the hardness of calcining back ceramic honeycomb structure is extremely high, needs the time to finish ceramic honeycomb structure is carried out chamfering, therefore be difficult to reduce the required processing time of chamfering.
In addition, because the skive as chamfering step instrument that must frequently more renew, thereby increased the production cost of honeycomb structured body.
In addition, when transporting, carrying after the molding cutting process and before calcination processing and transmitting the honeycomb molding, ceramic honeycomb structure corner part just has the possibility that the corner fracture takes place.
Have, because the speed that temperature increases in the calcination processing is different on each part of honeycomb molding, stress concentrates on the edge of honeycomb molding corner part usually again.The existence of honeycomb molding corner part edge causes fracture usually.
Summary of the invention
Those defectives of prior art as described above have been considered in proposition of the present invention.The purpose of this invention is to provide a kind of ceramic honeycomb structure and manufacture method thereof, it has good processing characteristics and significantly reduces the appearance of ceramic honeycomb structure top edge breakage and the generation of fracture.
According to an aspect of the present invention, the manufacture method of ceramic honeycomb structure has the step of extrusion modling, chamfering and calcining.In the process of extrusion modling, finish the extruding of ceramic raw material and molded forming the ceramic moulded bodies in the honeycomb, and the blanking punch goods are to form a plurality of honeycomb moldings.Each honeycomb molding all comprises a plurality of honeycomb walls in appearance skin zone and the honeycomb molding.In the process of chamfering, the edge chamfering of honeycomb molding bottom surface is so that form chamfered part at the edge of honeycomb molding bottom surface.In the process of calcining, the honeycomb molding that has chamfered part in the bottom surface is calcined, so that form ceramic honeycomb structure.
Description of drawings
In order to understand the present invention better and to show how to implement the present invention, will only the method that reaches according to a particular embodiment of the invention be described here by the mode of example.
Figure 1 shows that flow chart according to the production stage of the ceramic honeycomb structure of first embodiment of the invention;
Fig. 2 is the time diagram of calcination process in the first embodiment production stage;
Fig. 3 is the perspective view according to the ceramic honeycomb structure of first embodiment of the invention;
Fig. 4 is the side view according to the chamfered part on the ceramic honeycomb structure bottom edge of first embodiment;
Figure 5 shows that in the production process of first embodiment, ceramic honeycomb structure is loaded into filling procedure chart in the steel bushing;
Fig. 6 is the sectional view that is equipped with the exhaust gas cleaner of the first embodiment ceramic honeycomb structure;
Figure 7 shows that sectional view according to the chamfered part of the ceramic honeycomb structure bottom edge of second embodiment of the invention;
Figure 8 shows that the sectional view of the R curved surface that the edge on the ceramic honeycomb structure bottom surface that obtains forms in first embodiment of the invention;
Figure 9 shows that the sectional view of the C face that the edge on the ceramic honeycomb structure bottom surface that obtains forms in second embodiment of the invention;
Figure 10 shows that among Figure 11 along A-A to the edge breakage figure on ceramic honeycomb structure;
Figure 11 shows that the perspective view of the edge breakage on the edge of ceramic honeycomb structure bottom surface;
Figure 12 shows that SEM (SEM) photo on the chamfered part surface on the end face edge of the ceramic honeycomb structure that in first embodiment, obtains;
Figure 13 shows that SEM photo on traditional ceramic honeycomb structure bottom end chamfered part surface; And
Figure 14 shows that the perspective view of legacy cellular ceramic structure.
The specific embodiment
Each embodiment of the present invention is described below with reference to accompanying drawings.In following description to each embodiment, in all several accompanying drawings, similar reference symbol or the similar or identical member of numeral.
First embodiment
Ceramic honeycomb structure and manufacture method thereof according to first embodiment of the invention will be described below.
Figure 1 shows that flow chart according to the production process of first embodiment of the invention ceramic honeycomb structure.
At first to the ceramic raw material extrusion moduling, then the molding that obtained of cutting is so that form a plurality of ceramic honey comb structure moldings again, and each ceramic honeycomb structure all has appearance skin zone 11 and a plurality of honeycomb wall 12 (S100).
A plurality of honeycomb walls 12 in each ceramic honey comb molding 10 all are the spaced walls of loose structure, and spaced walls forms (omitting in the accompanying drawing) by lead-in path and discharge path.By lead-in path and discharge path, be imported into and discharge molded external from the tail gas of internal combustion engine (omitting in the accompanying drawing).Then a stopper is formed on the end face of ceramic honey comb molding 10.
Next, the oxidation aluminium paste that comprises aluminium oxide is injected on the end face of molding 10, so that the oxidation aluminium paste is coated on the surface of loose structure spaced walls (S110).Then, in order to use the catalyst-coated molding, ceramic honey comb molding 10 is immersed in the slurry.By the catalyst-coated (S110) on the surface of ceramic honey comb molding 10 spaced walls that aluminium lamination supported.
Then, stopper is formed on the maintenance end surfaces of ceramic honey comb molding 10, and molding 10 is implemented dry (S120).
Then, implement chamfer machining with similar tool such as skives, with edge 101 chamferings (S130) to ceramic honey comb molding 10 end faces 102.
Describe below shown in Fig. 3, the chamfered part on the edge 14 of ceramic honey comb molding 10 end faces that obtain by step 130 made its ingress of air in the past at calcination process.
At last, the calcining step of ceramic honey comb molding 10 is realized in electric furnace, to form ceramic honeycomb structure 1.In the calcination process of electric furnace, the chamfered part on edge 14 is directly by calcining (S140).
Figure 2 shows that in order to form according to the first embodiment ceramic honeycomb structure 1 temperature controlled time diagram in the electric furnace calcination process.
As shown in Figure 2, the temperature in the electric furnace is brought up to 600 ℃ gradually by 20 ℃/hour growth rate in calcination process.After about 30 hours, the growth rate of temperature is arranged on 80 ℃/hour and continues 10 hours.After 10 hours, the temperature of stove becomes 1400 ℃.1400 ℃ furnace temperature kept 5 hours.After 5 hours, stop to provide electric energy to electric furnace.The temperature of electric furnace directly reduces in the mode of cooling off naturally gradually ceramic honeycomb structure 1.
Fig. 3 is the perspective view by the ceramic honeycomb structure 1 of the first embodiment manufacture method manufacturing.As shown in Figure 3, the periphery of ceramic honeycomb structure 1 is applied by the thick appearance skin zone 11 of 0.5mm.
The inside of the ceramic honeycomb structure 1 of first embodiment comprises the honeycomb wall 12 that a plurality of 0.1mm are thick.A plurality of honeycomb walls 12 are formed in the honeycomb structured body 1 and by appearance skin zone 11 and a plurality of honeycomb 13 and center on.The width of each honeycomb 13 is 1mm.A plurality of honeycomb 13 are divided into clathrate by a plurality of honeycomb walls 12.
Figure 4 shows that side view according to the chamfered part that forms on end face 12 edges in the ceramic honeycomb structure 1 of first embodiment.As shown in Figure 4, the width W of the C face of the chamfered part 14 of molding 1 end face edge is located between the 0.5mm to 5.0mm.
In first embodiment, the angle between C face and molding 1 axis is arranged between 20 ° to 70 °.
The key character of first embodiment of the invention is, the chamfering step of ceramic honey comb molding 10 end face edge chamferings is finished before the calcining step after the drying steps.
Figure 5 shows that in the manufacture process of first embodiment, ceramic honeycomb structure 1 is encapsulated into encapsulation schematic diagram in the steel bushing.Fig. 6 is the sectional view of exhaust gas cleaner that is equipped with the ceramic honeycomb structure of first embodiment.
When an automobile assembling has ceramic honeycomb structure 1, ceramic honeycomb structure 1 forms by the manufacture method of first embodiment, as the exhaust gas cleaner shown in Fig. 64, by the working pressure assembly tool, along the structure axis Z shown in Fig. 5 ceramic honeycomb structure 1 is contained in the steel bushing from the peristome 22 of steel bushing 2.Ceramic honeycomb structure 1 is forced to cooperate and is fixed in the steel bushing 2 by forming and be arranged on fabricated material 21 on steel bushing 2 inwalls.
Then, as shown in Figure 6, the peristome 22 of steel bushing 2 that accommodates ceramic honeycomb structure 1 is by the screw setting and be connected on the tail gas trunk line 3.Therefore obtain exhaust gas cleaner 4.
Import in the exhaust gas cleaner 4 by gas inlet 31 and see through a plurality of honeycomb 12 that are formed in the ceramic honeycomb structure 1 from the tail of internal combustion engine, tail gas is filtered here, and the tail gas after the filtration goes out 32 from the tail gas of tail gas filter 1 and discharges.Tail gas from exhaust gas cleaner 4 drains into (not shown) in the atmosphere by exhaust pipe.
Operation and effect according to the ceramic honeycomb structure manufacture method of first embodiment of the invention are described now.
One of key character of the present invention is to carry out the chamfering step of ceramic honey comb molding 10 end face edge being carried out chamfering before calcination process.
When with when the classical production process of finishing chamfering after calcining step is again compared, owing to be soft on hardness before molding 10 calcinings, molding 10 easy chamferings before calcining step, manufacture method of the present invention can be accomplished.Therefore, manufacture method of the present invention can reduce the required time of chamfering step, and further obtains machining tool employed diamond longer service life in the chamfering step for example.These features can reduce the total cost of production of ceramic honeycomb structure of the present invention.
In addition, because unnecessary masterpiece is used on the ceramic honey comb molding 10, ceramic honey comb molding 10 is finished before calcination process has soft hardness in the process of chamfering, so manufacturing process of the present invention has the feature that prevents edge breakage and produce fracture.
Have again, during from the cutting step of honeycomb molding to the whole manufacturing of its calcining step, when comparing with traditional manufacture method, because the early stage of chamfering step before calcining step implements, manufacturing process of the present invention has the feature of the edge breakage that reduces ceramic honey comb molding end face 102 top edges 101.
Have, because calcining step is to finish under chamfered part 14 is formed on state on the edge of molding 10 end faces, in the process of calcining, this just might be avoided power to focus on the edge 101 of molding 10 end faces 102 again.Therefore might prevent from the edge 101 of ceramic honey comb molding 10 end faces 102, to occur any edge breakage and produce fracture.
In addition, because manufacturing step of the present invention forms chamfered section 14 on the edge of the end face 102 of molding 10, the width W of the C face of chamfered part is arranged in the scope of 0.5mm to 5.0mm, and this can fully improve the effect that is obtained by the chamfering step of implementing before calcining step.
In addition, because the very thin thickness of honeycomb wall 12 is not enough to the axial protrusion to ceramic honeycomb structure 1 from appearance skin zone 11, this just might prevent to occur fracture on honeycomb wall 12.
In addition, owing to form in 20 ° to 70 ° the angular range on the C face (see figure 4) of the chamfered part 14 of manufacture method of the present invention on the edge of ceramic honey comb molding 10 end faces 102, except by finishing before the calcining step the effect that the chamfering step obtains, this also further might improve effect of the present invention.
Chamfering step of the present invention is finished the ceramic honey comb molding after extrusion modling step and drying steps.Because molding 10 is to implement the chamfering step under appropriate leather hard, this just might allow molding 10 be badly deformed and easily molding 10 be implemented the chamfering step.
In addition, owing to directly calcined in the process of the surface of the chamfered part on the edge of molding 10 end faces 14 at calcining step, calcining step forms the chamfered part 14 of cordierite, and it has smooth surface, by 2MgO2Al
2O
35SiO
2Crystal grain form.The smooth surface of this chamfered part can avoid stress to concentrate at the edge 101 of molding end face 102, and avoids occurring edge breakage and produce fracture on the edge 101 of bottom surface 102.
Describe in detail as mentioned, according to first embodiment, just might provide ceramic honeycomb structure and manufacture method thereof, it can greatly reduce wherein frequent edge breakage and fracture.
Ceramic honeycomb structure of the present invention as catalyst carrier and various filter in the exhaust gas cleaner, for example is used for catching the particle contamination that diesel engine is discharged in the vehicle usually.
In order to form ceramic honeycomb structure of the present invention, also might 2MgO2Al will be comprised mainly
2O
35SiO
2Cordierite ceramic as ceramic raw material.
According to the present invention, after calcining step, also might further form ceramic honeycomb structure, make the thickness of appearance skin zone within the scope of 0.3mm to 0.7mm, the thickness setting of honeycomb wall is in the scope of the 0.2mm of 0.05mm, and the spacing of honeycomb wall is set in the scope of 1.0mm to 1.5mm.
If less than 0.5mm, just thinking, the width of C face can not assign to obtain effect by on the edge of molding end face, forming chamfered section.
In addition, if the C face with respect to the angle of molding axis less than 20 ° or surpass 70 °, just think that this C face chamfered part that is equal to nothing is formed on state on the edge of molding bottom surface.This situation also might be considered to and can not obtain its effect by form chamfered part on the edge of molding end face.
Second embodiment
Fig. 7 is the sectional view according to second embodiment of the invention chamfered part on the edge of ceramic honeycomb structure end face.
In a second embodiment, the chamfered part on the end face edge of ceramic honey comb molding 10 forms the R curved surface, and the radius of curvature of R curved surface is arranged in the scope of 0.5mm to 3.0mm.
Other parts of ceramic honeycomb structure are identical with parts according to the ceramic honeycomb structure of first embodiment.Therefore in the explanation of this omission to same parts.
In a second embodiment, because the chamfered part of molding end face on the edge has the R curved surface, the end face 102 and the stress in the appearance skin zone 11 that are applied to ceramic honey comb molding 10 are easy to be disperseed.In ensuing manufacture process, this can prevent from edge breakage and fracture to occur in the process of processing, transmission and carrying ceramic honey comb molding 10.
Other effect of the ceramic honey comb molding 10 of second embodiment is identical with the effect of first embodiment.
If the radius of curvature of R curved surface, just thinks that it becomes impossible and obtains effect by form chamfered part on the molding end face edge less than 0.5mm.
In addition, if the radius of curvature of R curved surface surpasses 3.0mm, because the thin axle center of honeycomb wall from appearance skin zone towards ceramic honeycomb structure is significantly outstanding, this causes lacking molding honeycomb wall easily.
First experiment
Table 1 is depicted as the ceramic honeycomb structure that the obtains experimental result about edge breakage rate and fracture production rate in first and second embodiment.The sectional view of the ceramic honeycomb structure C face that Fig. 8 is in first embodiment of the invention to be obtained.The sectional view of the ceramic honeycomb structure R curved surface that Fig. 9 is in second embodiment of the invention to be obtained.Figure 10 shows that the edge breakage figure that reaches on the ceramic honeycomb structure bottom edge among Figure 11 along the A-A line.Figure 11 shows that the perspective view at the ceramic honeycomb structure edge that has edge breakage.
In first experiment, prepared two types product: the product of first type product and second type.Each product of first type all be have 400 meshes, volume is that 1000cc, sectional area are 80cm
2, the thick thickness for 0.5mm, honeycomb wall 12 of appearance skin zone 11 are that 4.0mil (being similar to 100 μ m) and honeycomb width are the cylindrical ceramic honeycomb structure of 1.0mm.Each second type of product all be have 400 meshes, volume is that 1100cc, sectional area are 80cm
2, appearance skin zone 11 thick thickness for 0.5mm, honeycomb wall 12 be that 3.0mil (being similar to 75 μ m), honeycomb width are the cylindrical ceramic honeycomb structure of 1.0mm and 400 meshes.
First experiment has all been prepared 1000 units in each condition of the ensuing first kind product and second type products.
(1), do not implement the chamfering step;
(2), the width range of chamfering C face is 0.5mm and 1.0mm to 8.0mm, increment is 1.0mm; And
(3), the range of curvature radius of chamfering R curved surface is 0.5mm and 1.0mm to 5.0mm, increment is 1.0mm.
Table 1 be depicted as first and second products under various conditions the edge breakage rate and the fracture incidence experimental result.
Edge breakage means that the degree of depth " a " is 1.6mm or darker breach 19 on diametric(al) in table 1, or length " b " is 1.6mm or longer breach in the axial direction, as shown in Figure 10, the breach 19 here is damaged from the edge of ceramic honeycomb structure 1 end face 102.
In first experiment, the breakage at edge means if the breach shown in Figure 10 19 can not satisfy the situation of following condition: the degree of depth on diametric(al) " a " is not more than 3.0mm, length " b " is not more than 8.0mm in the axial direction, and length " c " is not more than 10.0mm in a circumferential direction.The damaged experimenter of meaning of rupturing can check intuitively that the 11 surperficial fractures that upward occur of various ceramic honeycomb structure 1 exocuticle parts are damaged.
Table 1
| Edge breakage rate (%) | Fracture incidence (%) | |||
| | | | | |
| There is not chamfering | 2.1 | 2.3 | 1.2 | 1.5 |
| C face width degree (mm) 0.5 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 | 0.7 0.1 0.3 0.6 0.8 1.3 2.1 2.9 4.1 | 0.8 0.3 0.5 0.6 1.2 1.5 2.7 3.9 5.3 | 0.9 0.4 0.2 0.4 0.5 0.4 0.6 0.4 0.3 | 1.1 0.6 0.4 0.3 0.2 0.4 0.5 0.3 0.4 |
| The radius of curvature R of R curved surface (mm) 0.5 1.0 2.0 3.0 4.0 5.0 | 0.6 0.2 0.7 1.0 2.3 3.2 | 0.8 0.3 0.7 1.1 1.9 2.9 | 0.8 0.4 0.5 0.5 0.3 0.4 | 1.0 0.5 0.4 0.3 0.4 0.5 |
Experimental result and table 1 obviously illustrate: when not having the molding of chamfered part to compare with the edge, the ceramic honeycomb structure with scope R curved surface chamfered part 14 in 0.5mm to 5.0mm of width W has low edge breakage rate and minimum fracture incidence.
On the contrary, if the width W of C face surpasses 5.0mm or less than 0.5mm, ceramic honeycomb structure has the possibility of very high appearance edge breakage.This is considered to the reason that very thin honeycomb wall 12 is given prominence at the axis direction of molding significantly from exocuticle part 11.
In addition, according to table 1, if the radius of curvature of the R curved surface of the chamfered part on the edge 14 is arranged in the scope of 0.5mm to 3.0mm, compared with not with the ceramic honeycomb structure of Chamfer Edge, this molding has low edge breakage rate and fracture occurrence rate.
On the contrary, if the radius of curvature of the R curved surface of the chamfered part at edge 14 surpasses 3.0mm, molding just has high edge breakage rate.As shown in Figure 9, this is considered to the reason why thin honeycomb wall 12 is given prominence in the axial direction significantly from exocuticle part 11.
Second experiment
Second experiment shows the difference of the curved surface state between the chamfered part on the end face edge in chamfered part 14 on the edge of ceramic honeycomb structure 1 end face of first embodiment (for example, seeing Fig. 3) and the traditional ceramic honeycomb structure.
Figure 12 is SEM (SEM) photo, shows the surface according to chamfered part 14 on the end face edge in the ceramic honeycomb structure 1 of first embodiment.Figure 13 also is a SEM SEM photo, shows in the legacy cellular ceramic structure surface of chamfered part on the end face edge.Chamfered part in traditional ceramic honeycomb structure is produced by the chamfering step after calcining step.
On the contrary, be before calcining step, to produce according to chamfered part in the ceramic honeycomb structure of first embodiment of the invention by the chamfering step.The surface of chamfered part is directly calcined in calcination process in ceramic honey comb molding 10 of the present invention.
In Figure 12 and two SEM photos shown in Figure 13, the Regional Representative of white is by cordierite 2MgO2Al
2O
35SiO
2The existence of the crystal grain that constitutes.
Figure 12 is clearly shown that the surface state of chamfered part 14 on the edge of ceramic honeycomb structure 1 end face of the crystal grain that has smooth surface according to the present invention.Therefore the stress that affacts on the exocuticle part 11 of end face 102 edges 101 and ceramic honeycomb structure 1 disperseed easily.This can prevent the appearance of edge breakage and fracture.
On the contrary, Figure 13 clearly show that the situation on the coarse crystal grain of angle surface chamfered part surface on legacy cellular structure middle-end h face edge.
When describing specific embodiments of the invention in detail, one skilled in the art will appreciate that according to disclosed all enlightenments and can carry out various corrections and replacement those details.Therefore, disclosed specific device only is illustrative, and the scope of the gamut of the given claim of unrestricted the present invention and equivalence thereof.
Claims (13)
1, a kind of manufacture method of ceramic honeycomb structure may further comprise the steps:
Carry out extrusion modling to form molding with ceramic raw material, then cut molding to form a plurality of honeycomb moldings, each honeycomb molding all comprises exocuticle part and a plurality of honeycomb walls in the honeycomb molding;
Edge chamfer to the end face of honeycomb molding forms chamfered part with the end face edge place at the honeycomb molding; And
Calcining has the honeycomb molding of chamfered part at the end face edge place, to form ceramic honeycomb structure.
2, according to the manufacture method of claim 1, wherein the chamfering step forms the C face at the edge of the corner of honeycomb molding part, and the C mask has the width in 0.5mm to 5.0mm scope.
3, according to the manufacture method of claim 2, wherein the angle of honeycomb molding axis and C face is located in 20 ° to 70 ° the scope.
4, according to the manufacture method of claim 1, wherein the chamfering step forms the R curved surface at the edge of honeycomb molding end face, and the R curved surface has the radius of curvature in 0.5mm to 5.0mm scope.
5, according to the manufacture method of claim 1, wherein chamfering is before the calcining step of calcining honeycomb molding, implements after the drying steps of drying honeycomb molding.
6, according to the manufacture method of claim 2, wherein chamfering is before the calcining step of calcining honeycomb molding, implements after the drying steps of drying honeycomb molding.
7, according to the manufacture method of claim 3, wherein chamfering is before the calcining step of calcining honeycomb molding, implements after the drying steps of drying honeycomb molding.
8, according to the manufacture method of claim 4, wherein chamfering is before the calcining step of calcining honeycomb molding, implements after the drying steps of drying honeycomb molding.
9, a kind of ceramic honeycomb structure comprises:
The exocuticle part;
A plurality of honeycomb walls that are formed in the ceramic honeycomb structure; And
The chamfered part that forms in the edge of ceramic honeycomb structure end face, and in manufacture process directly calcining and the chamfered part of acquisition.
10, according to the ceramic honeycomb structure of claim 9, wherein the edge chamfer at the ceramic honeycomb structure end face partly is formed with the C face of width range in 0.5mm to 5.0mm scope.
11, according to the ceramic honeycomb structure of claim 10, wherein the angle of the axis of ceramic honeycomb structure and C face is located in 20 ° to 70 ° the scope.
12, according to the ceramic honeycomb structure of claim 9, wherein chamfered part is formed with the R curved surface of radius of curvature in 0.5mm to 5.0mm scope.
13, according to the ceramic honeycomb structure of claim 9, wherein chamfered part has cordierite 2MgO2Al
2O
35SiO
2Crystal grain.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005007978 | 2005-01-14 | ||
| JP007978/2005 | 2005-01-14 | ||
| JP315884/2005 | 2005-10-31 |
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| CN1817452A true CN1817452A (en) | 2006-08-16 |
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| CN 200610004946 Pending CN1817452A (en) | 2005-01-14 | 2006-01-11 | Ceramic honeycomb structure body and manufacturing method thereof |
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| CN101612500B (en) * | 2009-07-22 | 2011-09-07 | 江苏高淳陶瓷股份有限公司 | Wall-flow honeycomb ceramic filter |
| CN101346184B (en) * | 2006-07-03 | 2012-07-11 | 日本碍子株式会社 | Honeycomb structure and method for manufacturing the same |
| CN102630183A (en) * | 2009-11-30 | 2012-08-08 | 康宁股份有限公司 | Apparatus and method for manufacturing a honeycomb article |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101346184B (en) * | 2006-07-03 | 2012-07-11 | 日本碍子株式会社 | Honeycomb structure and method for manufacturing the same |
| CN101612499B (en) * | 2009-07-22 | 2011-05-25 | 江苏高淳陶瓷股份有限公司 | Method for preparing wall-flow honeycomb ceramic filter |
| CN101612500B (en) * | 2009-07-22 | 2011-09-07 | 江苏高淳陶瓷股份有限公司 | Wall-flow honeycomb ceramic filter |
| CN102630183A (en) * | 2009-11-30 | 2012-08-08 | 康宁股份有限公司 | Apparatus and method for manufacturing a honeycomb article |
| CN102630183B (en) * | 2009-11-30 | 2015-04-15 | 康宁股份有限公司 | Apparatus and method for manufacturing a honeycomb article |
| CN103396103A (en) * | 2013-07-17 | 2013-11-20 | 李少荣 | Skin making mud based on large honeycomb ceramic carrier for skin making |
| CN103396103B (en) * | 2013-07-17 | 2015-11-18 | 李少荣 | A kind of make skin based on large, honeycomb ceramic monolith make skin mud |
| CN105577474A (en) * | 2015-12-23 | 2016-05-11 | 迈普通信技术股份有限公司 | Method and system for performance test of high-speed port of network device |
| CN105577474B (en) * | 2015-12-23 | 2018-10-30 | 迈普通信技术股份有限公司 | A kind of method and system of network equipment high-speed port performance test |
| CN108854318A (en) * | 2017-05-12 | 2018-11-23 | 日本碍子株式会社 | Amplifier case |
| CN108854318B (en) * | 2017-05-12 | 2022-07-19 | 日本碍子株式会社 | Honeycomb filter |
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