Gtp Schaefer Giesstechnische Produkte Gmbh

Gtp Schäfer Giesstechnische Produkte Gmbh

Gf Casting Solutions Mettmann Gmbh

Gf Casting Solutiongs Singen Gmbh

Gf Casting Solutions Herzogenburg Iron Gmbh

Gf Casting Solutions Leipzig Gmbh

Georg Fischer Automotive (kunshan) Co Ltd

Gf Casting Solutions Kunshan Co. Ltd.

Gtp Schäfer Gießtechnische Produkte Gmbh

Gf Casting Solutions Singen Gmbh

Thomas Baginski

Thomas Schäfer

Jörg Schäfer

Sabine Tunzini

In a method for producing a riser for inserting into a casting mold used for casting metals, the riser includes a riser body () surrounding an inner cavity () as a riser volume and is composed of an exothermic and/or insulating riser material (). To produce a single-piece riser body () in a two-part core box (), a cavity () reproducing the outer contour of the riser body () is formed and, in order to produce the inner cavity (), a reversibly expandable king () is set in the cavity () in such a way that, in the shooting of the riser body (), the wall region (), the cup region (), and the base region () of the riser body are formed by the riser material () introduced into the intermediate space () between the expanded king () and the inner wall () of the cavity ().

Method for producing a riser in a core shooter, and core box suitable for performing the method

A process produces a composite cast part containing an insert part and casting material. The insert part is integrally bonded to the casting material. The process includes: producing the insert part formed of an exothermic material; encapsulating or embedding the insert part; inserting the encapsulated/embedded insert part into a casting mold; filling the mold with molten mass; and flowing a casting material on the insert part. The exothermic material ignites through contact with the flowing casting material or as a result of the ignition temperature of the exothermic mass being reached, whereby a temperature gradient between the cast material solidifying molten mass the insert part is reduced.

Composite casting part

The invention relates to a method for producing a feeder configured for use in a casting mold used for casting metals, wherein the feeder has a feeder body () enclosing a feeder cavity () and a through opening () in its base region () for connecting the feeder cavity () to the casting mold and the feeder body () consists of an exothermic material and is enclosed on its outer side at least in regions by an external shell () consisting of insulating refractory material, and wherein the feeder is provided with a feeder foot () arranged externally in its base region () and having an opening () flush with the through opening (). The feeder is characterized in that the feeder body () produced in a first step in a conventional method from an exothermic material is used together with the feeder foot () associated with the base region () to form the external shell () into an injection mold () having a mold cavity () and feeder body and feeder foot are shot simultaneously with the insulating material, wherein the feeder body () including the feeder foot () is positioned in such a manner that the insulating material shot into the mold cavity () of the injection mold () fills in a gap () left between the feeder foot () and the base of the mold cavity () at least one part of the circumference of the feeder foot () and extending over at least a part of the height of the feeder foot (), and the shot external shell () thereby extends at least partially under the feeder foot () with the exception of its opening () and is attached to the base region () of the feeder body () without the use of auxiliary means.

Method for producing a feeder having an exothermic feeder body, and a feeder having an insulating external shell

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Leipzig, Germany

Thomas Baginski