UA82244C2 - Pin for baking of articles on honeycomb bases - Google Patents

Abstract

A pin for baking of articles on honeycomb bases comprises a metal core and ceramic head. The head is put on the metal core and connected to it by high-temperature sintering. The product quality is improved and power consumption is decreased due to exclusion of contact of the pin metal head with articles.

Description

The invention is based on the task of at least 1096 almost completely improving the pin for firing products, the displacement of the ceramic product in the honeycomb stands is excluded, in which due to the firing process, which will contribute to the fact that the rod is made of metal, and the head, to improve its quality. mounted on it with the help of The drawings illustrate the proposed high-temperature sintering, made of a pin for firing products on cellular ceramic material. increasing their quality and at the same time reducing the metal rod immersed in the head, there are energy costs for their manufacture. notching; fig2-pin, in which part

For this purpose, in the pin for burning products, a metal rod immersed in the head is on the honeycomb supports, which contains a rigid thread, Fig. 3 - the cross-sectional area of the parts connected to each other, the metal rod and the head of the rod immersed in the head, grows in the direction according to the invention, the head is made of a ceramic head. material and mounted on a metal rod according to The proposed pin contains rigidly connected by means of high-temperature sintering, between themselves metal, for example, from heat-resistant is optimal when the coefficient of metal, rod 1 with a diameter of 0.8 mm and head 2, thermal expansion of the metal rod according to the invention head 2 is made of ceramic, the thermal coefficient of the head is 1.6-2.8, for example, based on aluminum oxide, material and expansion of ceramic material; the length is mounted on a metal rod 1 for parts of a metal rod immersed in the head by means of high-temperature sintering, with not less than a third of the height of the head; at the same time, it is optimal when the coefficient of thermal expansion of the part of the metal rod immersed in the head is 2 notches; the rod and the head are connected using a coefficient of thermal expansion of the thread of 1.8; the outer surface of the head is porous, rod material 1; the length of the metal part, and the porosity of the outer surface of the head of the rod 1, immersed in the head 2, is not less than 1095; the transverse area is less than a third of the height of the head 2; on the part of the intersection of the part of the rod immersed in the head, the metal rod 1 immersed in the head 2 is growing in the direction of the head. notch Z; the outer surface of the head 2 is porous;

The cause-and-effect relationship between the totality and the porosity of the outer surface of the head of 2 features, which is proposed and technical is at least 1095. the results that are achieved during its implementation, the proposed pin is intended for consists of the following. fixation of dental products, which

Due to the design of ceramic heads, they are used in dental prosthetics: bridges, material mounted on a metal rod for crowns, etc. on honeycomb supports during high-temperature sintering and high-temperature firing. the proposed design is monolithic and has For obtaining such products, firstly, there are advantages of both a ceramic pin and a metal frame is made, on which the metal at the same time. The outer surface is layered with a ceramic mass (enamel), the ceramic head is in contact with the inner one, then this assembly is fixed with the help of the surface of the dental product, which eliminates the proposed pins on the cellular supports, the possibility of interaction with the metal, which thanks to this, the outer surface of the ceramic head retains its color and the transparency of the ceramic (enamel) applied to the metal surface. In addition, even with a dental product that excludes the possibility of long-term use of a ceramic head of metal interaction with it, thanks to this, the product mounted on a metal rod does not change its color and retains the transparency of the shape applied to it at high temperatures. At the same time, ceramics (enamels), after which the proposed pin has sufficient strength, firing under the specified processing modes, after which the rod is made of metal, and thanks to which the pins are removed and ready because the head is mounted on a metal metal-ceramic product is used for rods using a high-temperature prosthesis. Since the head 2 of the sintering pin, the design is / monolithic. When the ceramic metal-ceramic product that is in contact with the proposed ratio of coefficients does not suffer from a change in color and transparency, thermal expansion of the ceramic mass (enamel) applied to it is completely excluded, that the possibility of breaking the ceramics when sharp is very important because during the manufacture of crowns heating and subsequent cooling, which try to preserve all the features of the natural characteristic firing process. When performing a tooth (color, tubercles, fissures, zones with different lengths of a part of a metal rod immersed in color and transparency, etc., and thanks to the head, which is at least a third of the height of the execution of the rod 1 metal pin, the head as a whole achieves maximum strength has high strength indicators and a significantly greater connection of the head with the rod, which even more extends the service life. is achieved when there is a notch or thread on the part of the metal rod immersed in the head; and when the outer surface of the head is made porous with the porosity of the outer surface of the head in ra

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Fig. 1 Fig. 2 Fig. WITH