DE1583634C - Method and molded body for lining the head of a block form, a goat attachment, riser or the like - Google Patents

Description

I 583

if contains a fibrous refractory material. The sleeve or socket preferably has a sufficient one Resilience so that it can be compressed to bring the edges of the gap together. If the wall compressed in this way does not break and as a result of its inherent elasticity it closes seeks to return to its former state, it holds itself firmly in place in the form. In the case of sockets or sleeves that are made of materials with insufficient elasticity, you can Spring means may be provided in the socket or in cooperation with the latter to keep the socket to keep it in shape more vigorously.

Such a socket or socket is conveniently made by making a normal whole socket forms and removes a thin section from its top to its bottom. In use such a socket is in the form, the riser od. The like. Forced or sprung and generally holds itself in place due to its own elasticity. As above specified, one or more circumferential keys can be provided in the socket if necessary or be arranged in such a way as to act in cooperation with the socket thereby increasing the spring effect and the bushing in the form or the riser even more firmly to secure.

It is not necessary to complete the molded body by removing part of a bushing however, such a procedure is usually more economical than making one Bushing using the for the manufacture of objects from such material per se known working methods. With regard to the ease of manufacture jst the gap in the Bushing substantially parallel to the vertical axis of the sleeve or bushing, although also a straight or curved gap formed at an angle to the axis are also used can get.

Any of the heat insulating materials suitable for use in block form linings, Riser bushings or the like. Known per se, can be used in the practice of the invention provided they don't break too easily.

Some of the materials may inherently have insufficient elasticity, but this can Deficiency by inserting a circumferential spring into the socket, as described above, or by the incorporation into the socket during manufacture or after the shaping of an or several curved springs, which lie in planes perpendicular to the axis of the socket, helped will. On the other hand, a spring can be provided, which in use in cooperation with of the socket, as described below, acts.

Heat-insulating refractory masses based on mixtures containing a fibrous organic material, z. B. paper pulp, a granular refractory material, e.g. B. sand and a binder therefor, e.g. B. contain a resin binder, and such masses which contain a proportion of a fibrous refractory material, z. B. contain asbestos or slag wool, generally have the desired spring force and elasticity, to make them particularly suitable for use in the method according to the invention .. Such masses are z. As described in British Patents 888,875 and 960,474.

Sleeves or sockets of particular value in the practice of the invention due to Their high strength and spring force are in particular DoppelmulTen, which consists of an inner layer heat insulating refractory material as described above and an outer layer of a inorganic gauze-like material (preferably calcium aluminum silicate fibers) and a binder for that include. This outer layer gives the finished socket a high level of strength and spring force.

The shape of the sleeve and its use according to the invention are shown schematically in the drawing shown.

F i g. Figure 1 shows an embodiment of a sleeve according to the invention.

F i g. Fig. 2 shows this sleeve in the compressed state arranged in a mold (the Shape is shown in section for clarity).

Fig. 3 shows a sleeve by a bent Spring is held in place from a steel strip, with the spring inside the sleeve after inserting the sleeve into the mold.

1 sheet of drawings

Claims (2)

1 2 ρ ... which were intended for permanent molds, the external advice unprucne. Jich are square with rounded corners and internally round. This warming hood was at an angle 1. Method and molding for lining a corner from top to bottom running a slot of the head of a block form qines Gießaufsatzcs, 5 arranged, in which a wooden wedge was wedged to Steigers or the like, using a heat to verklemisoliercnden the hood in the upper part of the mold refractory molding, in the form of men. an open-ended hollow cylinder, prism or there are also open-ended experiments with heat hoods hollow truncated cone of small makes, which exothermically coated, externally Angle where the wall is formed by an io and internally quadrangular with rounded corners and continuous gap completely interrupted otherwise they were designed to be prismatic. This .heatist, characterized in that the hoods consisted of two parts, which are connected by a Moldings could be folded against one another to reduce its through-laid network, messcrs pressed together in the to be undressed - whereby after merging the two Inserted the part of a mold and released 15 halves on the opposite side of a slot is so that it resulted from inherent elasticity, in which a wedge was driven to the or by pressing one or more on the circumference of the heat hood in the upper part of the mold. Shaped body provided circumferential springs themselves. These hoods also have the disadvantage that each fixed. Wedges to secure them in the molds 2. Shaped bodies to carry out the 20 must be driven. driving according to claim 1, characterized in most of those occurring in practice net that the gap of the built-in molding cases is the cross-section of the head of the block mold runs essentially vertically. the Gießaufsafzes or the riser or the like. Around or polygonal with 5 or more sides, for example 25 6, 8 or 12 pages. The object of the invention is to create a new method for lining such Cavities of round or square cross-section according to the desired use 30 training purpose that does not have the disadvantages of the known working methods and an independent one Fixation of the molded body in the form of the heat-insulating refractory molded body allows The invention relates to a method of _{is) OHNC that we} i _tere tools are required. Lining the head of a block mold, a casting _{35 The} method according to the invention for the attachment, riser od. The like. Using a clothe the head of a block mold of a Gießaufwärmeisolierenden refractory molded body and set, riser od Implementation of the heat-insulating refractory molded body, in driving. Shape of an open-ended hollow cylinder, prism It is common in practice to use heat-insulating ₄₀ or open-ended hollow truncated cones of small refractory sockets or sockets for the specified angle, at which the wall through a through-purpose. The bushings or sleeves continuous gap is completely interrupted, is dawerden made with such dimensions that, by in that the molded body to it, reducing compressed to its diameter in the cavity to be lined, fit, that is, the outer opposite ex ₄₅ i _n the lined part of a mold introduced measurements of the socket coincide with the inner counter and is released such that it by überlicgenden dimensions of the lined, inherent resiliency, or by one or more of the cavity together. The bushings are usually held in their position circumferentially, for example against a spring itself. incidental displacement and in particular 50 According to an advantageous embodiment, the saw against movement under the metallostati- moldings for performing the process pressure when the shape of the hot-top or _m the invention AESS on a gap which is filled wesentder Steiger with molten metal is borrowed perpendicular. being holding on in place. and place with help The invention is of particular value when the cavity to be lined by wedges, ribbons or straps or suspension 55 is cylindrical, however Rods or rods done. These working methods can also be used if the are time consuming to set up the mold and cavity is tapered, i.e. a cavity with are naturally associated with the drawback that they _e r i _ne conicity of low angle and with the Require the specified attachment to be the wide end up or the wide end down. To fasten sleeves or sockets in their position. 60 _Dcr heat insulating refractory moldings can A pouring funnel is known which has several _a i _s socket or socket in the form of an open-ended Layers of helically wound asbestos hollow cylinder, prism or open ended hollow paper encompassed within a metal sleeve, the truncated cones of a small angle from a mass has a longitudinal slot. The purpose is to create a heat-insulating fire the outer metal layer therein, a _roll containing 65 solid material and preferably entirely spirally wound asbestos paper layer to _ot j _{he are} partially formed from a mass, the impede. _a [ _n fibrous organic material, granular fire- Attempts have been made with hanging _hoods made of solid material, a binding agent for it and given