Document Type and Number:
Japanese Patent JPS4855960
Kind Code:
A
Abstract:
1405618 Continuous casting CORNING GLASS WORKS 9 Nov 1972 [9 Nov 1971] 51690/72 Heading B3F [Also in Divisions C1 and B5] To form a honeycomb structure from extrudable material such as molten glass, ceramic batches, plastics and molten metal, the material is forced through feed passageways 18 to a guidework of interconnected discharge slots 24 and the longitudinal flow through the slots is impeded to promote lateral flow so that the material spreads to fill all the slots before being discharged as a honeycomb structure. As shown, a die 10 comprises a body 12 with the passageways 18 and an outer collar 14, the body 12. As shown in Fig. 4, the passages 18 communicate with alternate interconnected slots but other arrangements are disclosed. Outer feed passages 20 may be provided leading to an orifice 34 which forms an outer shell for the honeycomb structure. The orifice 34 is formed by an insert 32 secured on collar 14 and having an angled inner face 36 co-operating with an angled face 38 on body 12 to restrict the flow of material to the orifice 34. The resistance to longitudinal flow is affected by the viscosity of the material and also by the depth of the slots. The guidework can have any desired pattern such as round, square, oblong, triangular or hexagonal and the outer shell may be similarly shaped. The die 10 may comprise a number of sheets machined, stacked and clamped, brazed or bonded together. The slots 24 may be tapered at least in part. The die may be machined from aluminium or cold rolled steel or made from glass-ceramics, tungsten carbide or alumina.
More Like This:
| JP7359652 | extrusion mold |
| JP5513865 | Cemented carbide joint and its manufacturing method |
Application Number:
JP5996972A
Publication Date:
August 06, 1973
Filing Date:
June 15, 1972
Export Citation:
International Classes:
B28B3/26; B28B3/20; B28B7/18; B29B7/00; B29C48/11; B29C48/30; B29C48/32; B29C48/345; B29C48/92; C03B17/04; (IPC1-7): B28B3/26
Domestic Patent References:
| JP34002239A | ||||
| JPS4742386A |
Foreign References:
| US3038201A | 1962-06-12 |