DE1951906C3 - - Google Patents

Description

That isostatic ». Pr «« κ · 1.
SS ^ SE? La ^ * ! ^Works

of the pellet Ä; \ Τ ^{d3S 7} ^

Be ^ reßfeZLch efnffh ^A i ^messun 8 "eduzie-Dräoten KoZf? ^ Hen Korpern with little S Ä ^st? 7 ^ .FormteIe the

^Kor P ^e '.ni.t strong

^em _f ^allseiti S ^es ^ ^d

_dd

Fig! 5 the fastening section of a core part in Side cut and

F i g. 6 shows the longitudinal section of FIG. 4th

^{The die} used in Fig. 1 has the following structure and the pressing process is carried out as follows. The two-part mold 1, see Fig. 2, is held together by means of the clamping ring 2. In the ^{mold, the} two-part contour-giving mold parts3, in the present case support rings, are ^arranged, which maintain a certain distance from one another ^{by means of} screws4 in the Kllmmlei _{s th5.} The terminal strips 5 have for the implementation of the screws! Elongated holes, as can be seen in FIG. 3. The two tensioning screws6

^ SfSaSSSE

As the pressure builds up, the pressure comes through the bores and openings in the mold, the sealing plug and the support rings act on the rubber die and compress the powder to be pressed.

Since the support rings can move freely in the axial direction, they do not affect a possible axial change in distance between the insulation screens as a result of the pressure. After the pressing process the mold is removed from the recipient, the clamping ring 2 and the rubber clamping ring 9 are removed, the mold is opened and the rubber die is removed from the compact. After applying the raw glaze then the pressed part is burned.

In Fig. 3, the elongated holes in the terminal strip 5 can be seen, the axial displacement of the Allow support rings or other support devices or contouring molded parts. F i g. 4 shows the Isolator with two bushings arranged at right angles to one another, as it is, for. B. for tension used by overhead tram lines. Such a compact can also be used in the inventive Manufacture the device by the internal contouring moldings, the cores, in the Molded bodies are released from their attachment prior to the pressing process. The pins 10 are pulled out, whereby the cores 11 can migrate towards the center of the compact during the pressing process. The longitudinal section shown in FIG. 6 in front of FIG. 4 shows a variation of the releasable attachment the kernels. After the die has been filled, the plugs 12 are pulled out. The remaining opening in the wall of the die is big enough to hold the

ίο Cores during the pressing process in the direction of the center point to let the pellet wander.

The molds shown with the contouring molded parts and the structural design the detachable attachment of the contouring shape

parts are only exemplary embodiments and the invention is not limited to these exemplary embodiments. restricts. With the device described above, materials of any type, if they can be pressed are to bodies of any shape with indentations

Prepare eyes, bushings and / or grooves.

The material can e.g. B. ceramic raw material, pulverulent hard metal, plastic or sintered metal being.

For this purpose 2 sheets of drawings

Claims (2)

Patent claims: 1. Device for isostatic pressing of bodies with indentations, passages and / pder indentations, at right angles or oblique to "body axes, with an elastic die and with contour-giving moldings that start when the material to be pressed is poured into the die d Pßf solves that the Montageeii by means of tensioning screws the contouring parts of the hair are detachable or can be loosened for the purpose of unhindered Shrinkage of the material to be pressed during 5 pressing. According to the invention, the contour-giving Move molded parts freely in the shrinking direction of the material to be pressed. To an indefinite Direction of movement of the molded parts p material in the die to ensure, the two-part mold has several the mold are attached and thereby the 10 slots in which the screws of the contour of the outside the elastic die, the molded parts slide. characterized in that the fastening consists of the advantages achieved by the invention The shape of the mold by means of tensioning screws (6), in particular that pressed bodies with separate molded parts (3) can be detached or loosened, passages and / or screw-in holes, are produced in their final form for the purpose of unhindered be able,
Jerten shrinkage of the material to be pressed The material to be pressed is beun pressing am towards the center of the body. tel- or centrifugal device sufficiently evenly 2. Device according to claim 1, characterized in that it is dimensionally stable and compressed and the mold is marked, that the two-part mold (1) does not affect the pressure on the material, has several slots in which the screw 20 is known to decrease in the isostatic ben (4) of the contouring moldings (3) slide. Press the distances between the center lines of the Indentations, passages and / or indentations. An embodiment of the invention is shown in the drawing and will be described in more detail below described. It shows F i g. 1 the mold for an insulator in section F i 2 di Pßf i d Dfih The invention relates to an apparatus for manufacturing of pressed bodies with indentations, passages and / or indentations, at right angles or oblique to body axes, such as with isolators F i g. 2 the mold in plan view, F i g. 3 the mold in side view, Fig. 4 shows a pressed body with two at right angles S ^{ade Hd implementation} ™ 8- ⁱⁿ Q ⁸ 717'lim ^0! ??, ^VoTnc] t ⁱⁿ Z (Belgian Patent Il) u "! ^St i ^{n emer dru} <* Central permeable S? ¹ A ° D m ^S ·? ^Nf ° ^rm f ^{s form inn} s one the Con- Die au? ^ KK ^(J ^ ^m) · "?" * ,. ^{EASY USE} 5? ? ³ ^ Τ ⁶ " ^{m of} tubular from 5e ^R h * ^on ' ^ur f ^be " ^{de form} parts supported T wild'" ^ ^{elastic die}