A method and mold for preparing slender ceramic tube body by alternate molding
A technology of ceramic tubes and green bodies, which is applied in the field of material preparation, can solve the problems of difficult preparation of slender ceramic tubes, complex process, high cost, etc., and achieve the effect of short cycle, simple process and low cost
Active Publication Date: 2018-10-30
YANTAI UNIV
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Problems solved by technology
[0010] In order to overcome the problems existing in the preparation of slender ceramic tubes by the conventional molding method in the prior art, that is, it is difficult to prepare slender ceramic tubes by one-way and two-way molding, and the process of preparing slender ceramic tubes by isostatic pressing is complicated and the cycle is long. , high cost issues
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Embodiment 1
[0046] Embodiment 1 A kind of mold and the method for using it to prepare elongated ceramic tube body
[0047] A mold for preparing an elongated ceramic tube blank by alternate molding, comprising an inner core 1, a sleeve 2, a base 3, an outer mold 4, an inner mold 5, positioning pins 6, and a feeding cavity 7,
[0048] Wherein, the base 3 is a circular disk-shaped structure, the bottom is a plane, and the limiting protrusion 3-2 is restricted along the circular edge of the base 3, and the inner diameter of the annular limiting protrusion 3-2 is in line with the outer diameter of the sleeve 2. The diameter is the same or slightly larger, which is used to insert the sleeve 2 into it and limit the position; the center of the base 3 is provided with a through hole 3-1, and the inner diameter of the through hole 3-1 is the same as or slightly larger than the diameter of the inner core 1. To insert and limit the inner core 1;
[0049] The inner core 1 is a cylinder, fixed vertica...
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Abstract
The invention provides a die for preparing a long and thin ceramic pipe blank through alternated die pressing and an application method of the die. The problems existing in preparing of long and thin ceramic pipes through a conventional die pressing manner in the prior art are solved; and in other words, the problem that the long and thin ceramic pipes are hard to prepare through one-way die pressing and both-way die pressing is solved, and the problems of the complex technology, the long period, the high cost and the like in static pressure preparing of the long and thin ceramic pipes are solved. The method adopted for preparing the long and thin ceramic pipe blank has the beneficial effects of being simple in technology, short in period, low in cost and the like, and a sintered ceramic pipe component is uniform in microstructure and excellent and stable in mechanical performance.
Description
technical field [0001] The invention relates to a method for preparing a slender ceramic tube body, in particular to a method for a slender ceramic tube body and a mold thereof, and belongs to the technical field of material preparation. Background technique [0002] Ceramic molding technology is one of the important processes in the preparation of ceramic materials. It is the process of transforming ceramic powder into a green body with a certain shape and strength. [0003] Molding is a commonly used and effective ceramic body forming technology, including three forms of one-way molding, two-way molding and isostatic pressing. Due to the large stress gradient of the ceramic body formed by unidirectional compression molding, it can only be used to prepare small-sized and simple-shaped ceramic components, such as preparing short cylindrical specimens for compressive strength tests in various scientific experiments, and long-term bending strength tests. Strip samples, wafer ...
Claims
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IPC IPC(8): B28B21/10B28B21/82B28B21/86B28B21/90
CPCB28B21/10B28B21/82B28B21/86B28B21/90
Inventor 李向明姜付义李睿
Owner YANTAI UNIV