摘要:
A plate suitable for positioning with an extruder apparatus is provided in which the plate includes at least one temperature sensor. The plate is upstream of the die located at or near the end of the extruder apparatus. The sensor(s) allow for the simultaneous measurement of batch material temperatures at multiple spatial locations across the face of the plate. The temperature sensors associated with the plate can be used to identify spatial and temporal temperature patterns within the batch flow.
摘要:
An extrusion molding apparatus comprises a shaping die for producing a ceramic molded product, and a screw extruder having built therein an extruding screw (40) for mixing while leading a ceramic material forward. The extruding screw (40) includes a pressing screw portion (410) having a first lead (411) and a dispersing screw portion (420) having a second lead (421) adjacent to a forward end (412) of the pressing screw portion (410). The second lead (421) is formed in such a manner that the rear ends of all the second lead surfaces (426) at the rear end (422) of the dispersing screw portion (420) and the forward end of the first lead surface (416) at the forward end (412) of the pressing screw portion (410) are displaced from each other.
摘要:
In a method of producing a ceramic molding 8 having a desired shape by extruding a ceramic material 80 pressure-fed into a resistance pipe 3 from a mold 4 by using a production apparatus including a screw type extruder 10 and the mold 4 connected to the distal end of the extruder 10 through the resistance pipe 3, the ceramic material 80 pressure-fed from the extruder 10 into the resistance pipe 3 is heated or cooled from round the periphery of the resistance pipe 3 so as to control the shape of the ceramic molding 8 extruded from the mold 4.
摘要:
The invention herein relates to a kind of slug production device for brick-making machines, specifically referring to a kind of slug production device that is mainly comprised of a raw brick mixture filler trough and a vacuum trough, below which are the the parallel and horizontal members of two pressure tubes and two forming tubes, and positioned at the rear of the two pressure tubes and the two forming tubes are a pair of pressure mechanisms and, furthermore, at the bottom section of the raw brick mixture filler trough and the vacuum trough is a swing-type aggregate crushing mechanism such that after the raw brick mixture is loaded into the filler trough, the raw brick mixture is conveyed precisely into the pressure tubes and the pressure mechanism pistons at the rear of the two pressure tubes operate in a reciprocal movement to convey the raw brick material slugs into the vacuum trough then the raw brick material aggregate conveyed into the vacuum trough are guided into the forming tubes by the pressure mechanism and, furthermore, subjected to an equal forming and output pressure by the reciprocal operation of the pistons in the pressure mechanism at the rear of the forming tubes, which enables the invention herein to effectively achieve increased working efficiency and consistent slug quality.
摘要:
A method and apparatus for homogenizing a flow stream of plasticized material supplied from an extruder, to reduce viscosity gradients causing defects in extruded products, wherein a flow inverting homogenizer positioned in the flow stream and incorporating a plurality of criss-crossing channels for simultaneously transferring portions of the flow stream from central to peripheral flow stream locations and other portions of the flow stream from peripheral to central flow stream locations.
摘要:
An extrusion molding device 1 comprises a first pipe 10, a screw 2B that is provided in the first pipe 10, a second pipe 50 that is connected to the outlet of the first pipe 10, a flow adjustment plate 20 that is disposed between the first pipe 10 and the second pipe 50, and a die 90 that is connected to the outlet of the second pipe 50. The second pipe 50 includes, in order from the side of the first pipe 10, a first portion 32 having a constant inner diameter, a second portion 34 having an inner diameter that decreases as the second portion 34 extends from the first portion 32, and a third portion 36 having a constant inner diameter. The second portion 34 is undetachably integrated with the first portion 32, and the third portion 36 is undetachably integrated with the second portion 34.
摘要:
The extrusion-molding device of the invention is for producing a green honeycomb molded body with a cell structure, and the device includes a housing, a screw, a die with slits, a resistance tube and a fragmenting board having through-passages through which a raw material composition passes from the upstream end side to the downstream end side. The through-passages of the fragmenting board have upstream channels composed of a plurality of flow passages extending downstream from the upstream end side, and downstream channels extending up to the downstream end side and having flow passage cross-sectional shapes different from those of the upstream channels.
摘要:
A plate suitable for positioning with an extruder apparatus is provided in which the plate includes at least one temperature sensor. The plate is upstream of the die located at or near the end of the extruder apparatus. The sensor(s) allow for the simultaneous measurement of batch material temperatures at multiple spatial locations across the face of the plate. The temperature sensors associated with the plate can be used to identify spatial and temporal temperature patterns within the batch flow.
摘要:
A method is provided for manufacturing a thin-walled honeycomb ceramic substrate by extruding a plasticized ceramic batch material through a filter screen having wedge shaped filter wires to remove foreign particulate and agglomerated batch material. The filter wires are supported by a set of support wires attached substantially perpendicular to the filter wires. The support wires are may also be advantageously wedge shaped. The filter screen of the present invention may have a wear resistant layer at the surface of the screen, typically a boride or a nitride. The wear resistant coating may also be a nickel-based coating.
摘要:
An apparatus and a method, for drying ceramic molded articles, are disclosed. A drying apparatus (1) comprises a drying chamber (10) for accommodating ceramic molded articles (8), a plurality of microwave generators (20) for supplying microwave energy into the drying chamber, and a conveyor (30) for charging the ceramic molded articles (8) continuously into the drying chamber (10), conveying the ceramic molded articles through the drying chamber, and delivering the ceramic molded articles from the drying chamber. The drying chamber (10) has arranged therein a plurality of the microwave generators (20) and at least a sensor (40) for detecting the distribution of the ceramic molded articles (8) in the drying chamber (10). Each microwave generator (20) is adapted to change the output thereof in accordance with the distribution of the ceramic molded articles (8) detected by the sensor (40).