Method for manufacturing honeycomb structure and manufacturing apparatus thereof
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23K-026/36
B29C-035/08
B29C-047/00
B01D-039/20
출원번호
UP-0174699
(2008-07-17)
등록번호
US-7722791
(2010-06-14)
우선권정보
JP-2007-186762(2007-07-18)
발명자
/ 주소
Kimura, Koji
Nunome, Takuya
Shoji, Ryuichi
Kondo, Yoshimasa
Tsuji, Hiroyuki
출원인 / 주소
NGK Insulators, Ltd.
대리인 / 주소
Burr & Brown
인용정보
피인용 횟수 :
2인용 특허 :
7
초록▼
A method of manufacturing a honeycomb structure having a plugged portion, wherein a mask is applied to the honeycomb structure, a plugging material is supplied on the mask or on the same plane as a surface of the mask, and a pressurizing apparatus disposed at an acute angle with respect to the surfa
A method of manufacturing a honeycomb structure having a plugged portion, wherein a mask is applied to the honeycomb structure, a plugging material is supplied on the mask or on the same plane as a surface of the mask, and a pressurizing apparatus disposed at an acute angle with respect to the surface of the mask and having a pressurizing face for pressurizing the plugging material is moved to fill the plugging material into the cells of the honeycomb structure. The pressurizing apparatus is moved on the mask with a part of the region of the pressurizing face being brought into surface contact with the mask via the plugging material to pressurize the plugging material toward the cell side and to push out an extra plugging material in the direction of movement to further pressurize and fill the material into the cells with forming the region of the surface contact.
대표청구항▼
What is claimed is: 1. A method for manufacturing a honeycomb structure having plugging portions, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the hon
What is claimed is: 1. A method for manufacturing a honeycomb structure having plugging portions, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof, the method comprising the steps of: attaching a mask having openings corresponding to openings of at least a part of the cells to the end faces of the honeycomb structure; supplying a plugging material having fluidity on the mask or on the same plane as a surface of the mask; and moving a pressurizing member disposed at an acute angle with respect to the surface of the mask and having a pressurizing face for pressurizing the plugging material to fill the plugging material into the cells of the honeycomb structure by pressurizing the plugging material with the pressurizing face, wherein the pressurizing face is a flat face and is disposed at an angle of 2° to 55° with respect to the surface of the mask. 2. The method for manufacturing the honeycomb structure having plugging portions according to claim 1, wherein the mask is moved with a part of the pressurizing face being brought into contact with the mask via the plugging material to pressurize the plugging material toward the cell side and to push out an extra plugging material in the direction of movement of the mask, and the plugging material is filled into the cells with forming a region of face contact. 3. The method for manufacturing the honeycomb structure having plugging portion according to claim 1, wherein the honeycomb structure and the plugging material of the honeycomb structure contain a ceramic selected from the group consisting of cordierite, mullite, alumina, silicon carbide, and a combination thereof. 4. The method for manufacturing the honeycomb structure having plugging portions according to claim 1, wherein the mask is obtained by forming holes in the film by a laser after attaching the film to the end faces of the honeycomb structure. 5. The method for manufacturing the honeycomb structure having plugging portions according to claim 1, wherein, upon positioning a table portion having a through-hole where the end face portion of the honeycomb structure is to be inserted and the honeycomb structure by inserting the end face portion of the honeycomb structure, the mask is provided on the end face, a remaining portion of the mask is folded on the side face portion, an end portion on the end face side of the side face portion of the honeycomb structure where at least a part of the mask adheres to the side face portion is held with a sealing member to seal a gap between the side face portion of the honeycomb structure and the table portion with the sealing member, and a plugging material having fluidity is supplied onto the mask or the table portion on the same plane as the surface of the mask to fill the plugging material into the cells. 6. The method for manufacturing the honeycomb structure having plugging portions according to claim 5, wherein the sealing member is a hollow elastic ring, and sealing is performed by expanding the hollow elastic ring by air pressure. 7. A manufacturing apparatus for a honeycomb structure having plugging portions, the apparatus comprising: a table portion having a through-hole into which an end face portion of a honeycomb structure is to be inserted, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof; a positioning means for positioning and holding the table portion and the honeycomb structure in a state that the end face portion of the honeycomb structure is inserted into the through-hole of the table portion; a plugging material supply means for supplying a plugging material having fluidity onto the mask or onto the table portion in a state that the mask having openings corresponding with openings of at least a part of the cells is disposed on the end face of the honeycomb structure; and a pressurizing member having a pressurizing face disposed at an acute angle with respect to a surface of the mask and applying pressure to the plugging material and a moving means for moving the honeycomb structure on the tablet wherein the pressurizing face is a flat face and forms an angle of 2° to 55° with respect to the surface of the mask; wherein, after supplying the plugging material on the mask of the honeycomb structure positioned with respect to the table portion or on the table portion, the pressurizing means moves on the table portion, thereby pressurizing the plugging material supplied on the mask by the pressurizing face to fill the plugging material into the cells of the honeycomb structure. 8. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the pressurizing face is capable of elastic deformation and wherein a part of the pressurizing face is brought into surface contact with the mask via the plugging material, moves on the mask to pressurize the plugging material toward the cell side and to push out an extra plugging material in a moving direction, and further pressurizing and filling the plugging material into the cells with forming a region of surface contact. 9. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the plugging material supply means is provided on the pressurizing means and moves unitarily with the pressurizing means. 10. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the mask is a film attached so as to cover the end face of the honeycomb structure. 11. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the pressurizing means includes a pressurizing mechanism for moving the pressurizing face in a direction perpendicular to the surface of the mask and a driving mechanism for moving the pressurizing face along the surface of the mask. 12. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the table portion has side wall portions formed to protrude from the surface in parallel with the moving direction of the pressurizing means on both sides of the through-hole on the surface of the table portion and inhibiting the plugging material from leaking out from the surface of the table portion. 13. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the apparatus has a sealing mechanism for inhibiting the extra plugging material pushed out by the pressurizing face by sealing the gap between the side face portion of the honeycomb structure and the table portion with a sealing member by holding an end portion on the end face side of the side face portion of the honeycomb structure where the mask is provided on the end face in the state that the remaining portion of the mask is folded toward the side face portion and that at least a part of the mask is adhered to the side face portion with the sealing member whose contact portion with the side face portion of the honeycomb structure is constituted to be movable upon positioning the table portion and the honeycomb structure by inserting the end face portion of the honeycomb structure into the through-hole of the table portion. 14. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 13, wherein the sealing member is a hollow elastic ring and wherein sealing is performed by expanding the hollow elastic ring by air pressure to seal. 15. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 7, wherein the pressurizing means has the first pressurizing face and the second pressurizing face as two slant faces, the lower ends of the first pressurizing face and the second pressurizing face are connected with each other to form a joint portion, a cross section is formed in a protruding shape by the first pressurizing face and the second pressurizing face with the joint portion as a tip portion, the pressurizing means moves in a forward direction on the table portion to fill the plugging material by the first pressurizing face and a backward direction to fill the plugging material by the second pressurizing face. 16. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 15, wherein a plugging material supply hole for supplying the plugging material having fluidity on the mask or on the table portion is formed on the first pressurizing face and the second pressurizing face. 17. A method for manufacturing a honeycomb structure having plugging portions, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof, the method comprising the steps of: attaching a mask having openings corresponding to openings of at least a part of the cells to the end faces of the honeycomb structure; supplying a plugging material having fluidity on the mask or on the same plane as a surface of the mask; and moving a pressurizing member disposed at an acute angle greater than 0 degrees and less than 90 degrees with respect to the surface of the mask and having a pressurizing face for pressurizing the plugging material to fill the plugging material into the cells of the honeycomb structure by pressurizing the plugging material with the pressurizing face, wherein the pressurizing face is a curved face protruding toward the mask side. 18. The method for manufacturing the honeycomb structure having plugging portions according to claim 17, wherein the mask is moved with a part of the pressurizing face being brought into contact with the mask via the plugging material to pressurize the plugging material toward the cell side and to push out an extra plugging material in the direction of movement of the mask, and the plugging material is filled into the cells with forming a region of face contact. 19. The method for manufacturing the honeycomb structure having plugging portion according to claim 17, wherein the honeycomb structure and the plugging material of the honeycomb structure contain a ceramic selected from the group consisting of cordierite, mullite, alumina, silicon carbide, and a combination thereof. 20. The method for manufacturing the honeycomb structure having plugging portions according to claim 17, wherein the mask is obtained by forming holes in the film by a laser after attaching the film to the end faces of the honeycomb structure. 21. The method for manufacturing the honeycomb structure having plugging portions according to claim 17, wherein, upon positioning a table portion having a through-hole where the end face portion of the honeycomb structure is to be inserted and the honeycomb structure by inserting the end face portion of the honeycomb structure, the mask is provided on the end face, a remaining portion of the mask is folded on the side face portion, an end portion on the end face side of the side face portion of the honeycomb structure where at least a part of the mask adheres to the side face portion is held with a sealing member to seal a gap between the side face portion of the honeycomb structure and the table portion with the sealing member, and a plugging material having fluidity is supplied onto the mask or the table portion on the same plane as the surface of the mask to fill the plugging material into the cells. 22. The method for manufacturing the honeycomb structure having plugging portions according to claim 17, wherein the sealing member is a hollow elastic ring, and sealing is performed by expanding the hollow elastic ring by air pressure. 23. A manufacturing apparatus for a honeycomb structure having plugging portions, the apparatus comprising: a table portion having a through-hole into which an end face portion of a honeycomb structure is to be inserted, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof; a positioning means for positioning and holding the table portion and the honeycomb structure in a state that the end face portion of the honeycomb structure is inserted into the through-hole of the table portion; a plugging material supply means for supplying a plugging material having fluidity onto the mask or onto the table portion in a state that the mask having openings corresponding with openings of at least a part of the cells is disposed on the end face of the honeycomb structure; and a pressurizing member having a pressurizing face disposed at an acute angle greater than 0 degree and less 90 degrees with respect to a surface of the mask and applying pressure to the plugging material and a moving means for moving the honeycomb structure on the table, wherein the pressurizing face is a curved face protruding toward the mask side; wherein, after supplying the plugging material on the mask of the honeycomb structure positioned with respect to the table portion or on the table portion, the pressurizing means moves on the table portion, thereby pressurizing the plugging material supplied on the mask by the pressurizing face to fill the plugging material into the cells of the honeycomb structure. 24. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the pressurizing face is capable of elastic deformation and wherein a part of the pressurizing face is brought into surface contact with the mask via the plugging material, moves on the mask to pressurize the plugging material toward the cell side and to push out an extra plugging material in a moving direction, and further pressurizing and filling the plugging material into the cells with forming a region of surface contact. 25. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 17, wherein the plugging material supply means is provided on the pressurizing means and moves unitarily with the pressurizing means. 26. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the mask is a film attached so as to cover the end face of the honeycomb structure. 27. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the pressurizing means includes a pressurizing mechanism for moving the pressurizing face in a direction perpendicular to the surface of the mask and a driving mechanism for moving the pressurizing face along the surface of the mask. 28. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the table portion has side wall portions formed to protrude from the surface in parallel with the moving direction of the pressurizing means on both sides of the through-hole on the surface of the table portion and inhibiting the plugging material from leaking out from the surface of the table portion. 29. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the apparatus has a sealing mechanism for inhibiting the extra plugging material pushed out by the pressurizing face by sealing the gap between the side face portion of the honeycomb structure and the table portion with a sealing member by holding an end portion on the end face side of the side face portion of the honeycomb structure where the mask is provided on the end face in the state that the remaining portion of the mask is folded toward the side face portion and that at least a part of the mask is adhered to the side face portion with the sealing member whose contact portion with the side face portion of the honeycomb structure is constituted to be movable upon positioning the table portion and the honeycomb structure by inserting the end face portion of the honeycomb structure into the through-hole of the table portion. 30. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 29, wherein the sealing member is a hollow elastic ring and wherein sealing is performed by expanding the hollow elastic ring by air pressure to seal. 31. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 23, wherein the pressurizing member, the first pressurizing face and the second pressurizing face has two slant faces, the lower ends of the first pressurizing face and the second pressurizing face are connected with each other to form a joint portion, a cross section is formed in a protruding shape by the first pressurizing face and the second pressurizing face with the joint portion as a tip portion, the pressurizing means moves in a forward direction on the table portion to fill the plugging material by the first pressurizing face and a backward direction to fill the plugging material by the second pressurizing face. 32. The manufacturing apparatus for a honeycomb structure having plugging portions according to claim 31, wherein a plugging material supply hole for supplying the plugging material having fluidity on the mask or on the table portion is formed on the first pressurizing face and the second pressurizing face.
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이 특허에 인용된 특허 (7)
Montierth Max R. (Elmira NY), Apparatus for high speed manifolding of honeycomb structures.
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