DE482538C - Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core parts - Google Patents
Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core partsInfo
- Publication number
- DE482538C DE482538C DESCH83716D DESC083716D DE482538C DE 482538 C DE482538 C DE 482538C DE SCH83716 D DESCH83716 D DE SCH83716D DE SC083716 D DESC083716 D DE SC083716D DE 482538 C DE482538 C DE 482538C
- Authority
- DE
- Germany
- Prior art keywords
- core
- charring
- mass
- flexible
- ring segments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/04—Casting hollow ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
Zusammenziehbarer, aus Ringsegmenten zusammengesetzter Metallkern zum Gießen von Hohlblöcken mit nachgiebiger oder verkohlbarer masse zwischen den Kernteilen Es ist bekannt, beim Gießen von Röhren oder hohlen Metallblöcken längsgeteilte Metallkerne zu benutzen und in den Fugen dieser Kerne nachgiebige oder auch verkohlbare Stoffe anzubringen, so daß der Kern beim Abkühlen des Gußstückes nachgeben kann. Es ist auch vorgeschlagen worden, die aus metallenen Ringsegmenten bestehenden Schalenteile dies Kernes mit einer inneren Holzeinlage zu verschrauben. Die Erfindung betrifft eine Verbesserung eines derartigen längsgeteilten Metallkernes. Nach der Erfindung wird der Kern selbst als Hohlkörper ausgebildet, und die Stoßflächen der Kernteüe werden derart schräg angeordnet, daß sich die Fugen nach dem inneren Hohlraum des Kernes hin erweitern.Contractible metal core composed of ring segments For casting hollow blocks with a flexible or charring mass between the Core parts It is known to split lengthways when casting tubes or hollow metal blocks To use metal cores and in the joints of these cores yielding or charring To attach substances so that the core can yield when the casting cools. It has also been proposed that the shell parts consisting of metal ring segments to screw this core with an inner wooden insert. The invention relates to an improvement of such a longitudinally divided metal core. According to the invention the core itself is designed as a hollow body, and the abutting surfaces of the Kernteüe are arranged at an angle that the joints after the inner cavity of the Expand the core.
Infolge der neuen Ausbildung des Kernes kann dieser seinen Zweck besser als bisher erfüllen. Die zum Ausfüllen der Fugen dienende Masse wird beim Zusammendrücken der Kernteile infolge des Schrumpfens des Gußstückes in den Hohlraum zurückgedrückt, so daß der Kern mit Sicherheit in dem erforderlichen Maße nachgibt und Spannungen vermieden werden. Bei der Anwendung verkohlbarer oder veraschbarer Füllmasse bietet der neue Kern den weiteren Vorteil, daß der Verkohlungsvorgang durch Kühlung der Masse vom inneren Hohlraum des Kernes aus beeinflußt werden kann.As a result of the new formation of the core, it can better serve its purpose than before. The mass used to fill the joints is when pressed together the core parts are pushed back into the cavity as a result of the shrinkage of the casting, so that the core will certainly yield to the required degree and stress be avoided. When using charring or incinerable filling compound offers the new core has the further advantage that the charring process by cooling the Mass can be influenced from the inner cavity of the core.
In der Zeichnung ist eine Ausführungsform des Kernes dargestellt. Es zeigen: Abb. i einen wagerechten Schnitt durch den Kern, Abb. 2 einen senkrechten Schnitt durch die Kokille und den Kern.In the drawing, an embodiment of the core is shown. They show: Fig. I a horizontal section through the core, Fig. 2 a vertical section Section through the mold and the core.
Der Kern besteht aus vier Teilen a, b, c, d, die ringsegmentförmig ausgebildet sind und somit einen Hohlraum c einschließen. Die Stoßfläche f der Kernteile sind schräg angeordnet, so daß die zwischen den Teilen gebildeten Fugen g sich nach dem. Hohlraum e hin erweitern. Die in die Fugen eingebrachte Masse la wird beim Zusammenpressen der Kernteile in den Hohlraum zurückgedrückt. Sie besteht gegebenenfalls aus verkohlbarem Stoff, deren Verbrennung oder Verkohlung durch Kühlung des Kernes vom Hohlraum e her verzögert werden kann.The core consists of four parts a, b, c, d, which are formed in the shape of a ring segment and thus enclose a cavity c. The abutment surface f of the core parts are arranged obliquely, so that the joints formed between the parts g after. Expand cavity e. The mass la introduced into the joints is pushed back into the cavity when the core parts are pressed together. If necessary, it consists of charring material, the combustion or charring of which can be delayed by cooling the core from the cavity e.
Bei dem Ausführungsbeispiel ist der Kern in die Kokille i eingehängt, so daß das Metall unter ihm zusammenfließen kann.In the exemplary embodiment, the core is suspended in the mold i, so that the metal can flow together under him.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH83716D DE482538C (en) | Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH83716D DE482538C (en) | Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core parts |
Publications (1)
Publication Number | Publication Date |
---|---|
DE482538C true DE482538C (en) | 1929-09-16 |
Family
ID=7442798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH83716D Expired DE482538C (en) | Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core parts |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE482538C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748017C (en) * | 1938-02-03 | 1944-11-13 | Carl Adey | Multi-part metallic molded or core part for the production of finished castings from non-ferrous heavy metals |
-
0
- DE DESCH83716D patent/DE482538C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748017C (en) * | 1938-02-03 | 1944-11-13 | Carl Adey | Multi-part metallic molded or core part for the production of finished castings from non-ferrous heavy metals |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1483641B2 (en) | WATER-SOLUBLE SALT CORN | |
DE704512C (en) | Closing and pull-out device when pouring roads, in particular made of metal | |
DE482538C (en) | Contractible metal core composed of ring segments for casting hollow blocks with a flexible or charring mass between the core parts | |
DE807125C (en) | Process for the production of socket pipes | |
DE742603C (en) | Process to reduce the solidification time of mold and core compounds | |
DE674611C (en) | Multi-part metal core | |
DE720556C (en) | Pressure stamp for casting liquid metal under explosion pressure for dental purposes | |
DE1940880A1 (en) | Removing feeders from metal castings | |
DE402804C (en) | Casting plant for long castings, especially pipes | |
DE470233C (en) | Process for the production of non-metallic closed frames for boxless casting | |
DE454536C (en) | Canal stone consisting of two layers | |
AT36817B (en) | Method of casting pipes. | |
DE745945C (en) | Multi-part mold | |
DE712231C (en) | Process for producing thick-walled hollow bodies | |
DE673606C (en) | Device for the production of hollow cast blocks | |
DE672685C (en) | Covering means for producing hollow cast blocks | |
DE662789C (en) | Device for the simultaneous casting of several internal combustion engine pistons made of light metal in a mold | |
DE691498C (en) | hen the same from the block molds | |
DE580667C (en) | Process and casting mold for the production of flange pipes by means of centrifugal casting | |
DE655815C (en) | Method for casting particularly pressure-tight hollow bodies with a partition, e.g. B. flow valve housings | |
DE510943C (en) | Process for the production of shut-off devices with a bridge or the like. | |
DE2756097B2 (en) | Process for the manufacture of castings from explosives | |
DE417900C (en) | Process for the production of tubes and similar hollow bodies by centrifugal casting | |
DE502935C (en) | Longitudinally split mold for metal | |
DE376342C (en) | Device for casting metal objects using compressed air |