SU1395425A1 - Arrangement for centrifugal compacting of articles from powder - Google Patents

Abstract

The invention relates to the field of powder metallurgy, in particular to devices for the centrifugal formation of articles from powder. Objective L of the invention is to simplify the purchase and reduce energy costs. The detachable matrix 1 is installed in the housing and secured with latches 3. Powder is poured into the annular space formed by the walls of the matrix and the forming elements 7. Then install the plug 9 and secure it with latches. The rotation of the matrix provides compaction of the powder due to centrifugal forces. The elastic elements 7, together with metal shot, cause an additional compaction of the powder along the height of the product. The device is characterized by simplicity by eliminating the need to use a drive for the reciprocating movement of a matrix or a force action unit. 3 il. and (L with with with the joint venture 4 to the joint venture

Description

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The invention relates to powder metallurgy., In particular, to devices for the centrifugal molding of products from rink. and maybe

used for the manufacture of tubular products from powder materials for the application of various kinds of coatings

The aim of the invention is to simplify the design and reduce energy consumption.

Figure 1 shows the device, the pro: Longitudinal section ° 5 in Figure 2 is a sectional view of the figure, with the left side, the position of the elements of the device is shown; devices in the beginning — m: oment mold 5 on the right side: - at the final moment of molding); on fng.3 - node I on phi1, 2,

The device consists of detachable: matrix 1, installed in housing 2 and associated with it by means of quick release clips 3, housing 2 is installed in volume A with possibility; damage and is connected through pulley 5 with input (not shown). Inside the matrix I), along its axis, there is a node of the stage action 3 consisting of shaft 6, rigidly connected with body 2, shape, gush, and their elements 7, made elastic in the form of two-center curls, rigidly fixed with their ends evenly around the circumference from a bent piece of greater curvature (I.) with a hall of 6 n forming its free ends on the side of a lesser curvature (2R), a closed circular contour 5 and also a meta fraction of 8, embedded in each of the cells formed the mold elements .7 and the shaft 6. At the same time, the mass of the shot fraction in each cell is the same. In the upper part of the mattress: 1 a plug 9 is installed, fastened using quick-release fasteners 3 The device works as follows

In the initial position, the detachable cavity 1 is installed into the housing 2 and secured with latches 3. In the annular space 5 formed by the CTS .H ™ of the die and the forming elements 7, powder is fixed; then the plug 9 is installed and secured with the latches 3. After this, the drive of the housing 2 is turned on, which causes the associated no-matrix 1 to rotate simultaneously. powder and knot of force action-g

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The rotation of the matrix 1 provides a slight compaction of the powder due to the centrifugal forces applied to the powder particles. By the action of centrifugal forces, the elastic forming elements 7 are deformed and move together with the metal shot 8 in the radial direction, which causes an additional compaction of the powder over the entire height of the product, and in connection with the fact that the masses of the shot are put in separate cells, they are the same centrifugal forces acting from the fraction on the forming elements of ultrasonic equal. At the end of the powder molding process, the rotational drive of the housing 2 is turned off, while under the action of elastic forces arising from the forming elements 7, they occupy the original position, forming a gap between the inner surface of the product and the outer surface of the forming ones. elements 7. Then remove the plug 9 S remove the split matrix 1 from the housing 2 and remove the molded product from it

Then chi: "l is repeated.

Thus, the installation of the shaft with the possibility of joint rotation with the matrix allows one to rotate them from a single drive, which simplifies the design of the device, and the execution of the forming elements is elastic — 1 W in shape. The shaft: center: curls rigidly fixed along the shaft CBOi -iMH ends from the side of greater curvature and forming a loose circular contour with free ends, filled with metal shot, provides simultaneous radial movement of all the forming elements, allowing molding from sharing along its entire height, which makes it possible to simplify the design and reduce energy consumption by eliminating the drive of back-and-forth movement of the material or unit of force action.

Claims (1)

Therefore, the use of the proposed device allows to reduce the costs of its manufacture by 25-30% and to reduce the energy consumption by an average of 30%. Invention Formula A device for centrifugal molding ed. 2 lmy powder, containing a matrix with rotation guide, tor31 Negative plugs, a force action unit placed in the matrix, made in the form of a shaft and forming elements installed on it with the possibility of radial movement, characterized in that, in order to simplify the design and reduce energy consumption, the shaft is installed 3954254 with the possibility of joint rotation with the matrix, the forming elements are made of elastic two-center curls, rigidly fixed along the shaft with their cogs from the greater curvature with the formation of other ends of an icy circular contour filled with metal shot. Powder Aa Zagododky FIG. 2 Fi &.