DE900261C - Molding process - Google Patents

Molding process

Info

Publication number
DE900261C
DE900261C DESCH2490D DESC002490D DE900261C DE 900261 C DE900261 C DE 900261C DE SCH2490 D DESCH2490 D DE SCH2490D DE SC002490 D DESC002490 D DE SC002490D DE 900261 C DE900261 C DE 900261C
Authority
DE
Germany
Prior art keywords
clay
filler
gravel
free
molding process
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
Application number
DESCH2490D
Other languages
German (de)
Inventor
Karl Ingendahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schiess AG
Original Assignee
Schiess AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schiess AG filed Critical Schiess AG
Priority to DESCH2490D priority Critical patent/DE900261C/en
Application granted granted Critical
Publication of DE900261C publication Critical patent/DE900261C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Description

Formverfahren Zusatz zum Patent 889 687 Die Erfindung betrifft eine Erweiterung des Formverfahrens nach Patent 889 687, nach welchem eine das Modell umgebende erhärtende Schicht mit praktisch tonfreiem Sand hinterfüllt wird, wobei eine größere Anzahl bedeutsamer Vorteile erzielt werden, von .denen nur der Wegfall des Stampfens erwähnt sei.Molding process addendum to patent 889 687 The invention relates to an extension of the molding process according to patent 889 687, according to which a hardening layer surrounding the model is backfilled with practically clay-free sand, whereby a large number of significant advantages are achieved, of which only the omission of tamping should be mentioned.

Gemäß der zusätzlichen Erfindung kann man nun statt des tonfreien Sandes auch andere, durch einmaliges Zusammendrücken schnell auf die Endverdichtung zu bringende Füllstoffe benutzen.. Dazu gehören z. B. Kies oder gebrochene natürliche oder künstliche Steine, etwa in Form von Kleinschlag, Schotter, Ziegelbrocken od. dgl. Auch gebrochene Schlacke kann bei geeigneter Beschaffenheit Verwendung finden; überhaupt jegliches körnige Gut, das seiner Beschaffenheit nach durch einmaliges Andrücken in eine Lage gebracht wird, in der es bei weiterem Druck keine wesentlichen Veränderungen mehr erfährt. Zu solchen Mitteln gehören auch Stahlkies, Metallgranalien, Sinterstoffe, Metallkugeln u. dgl., die infolge ihres spezifischen Gewichtes schon durch die Aufschüttung in die Endverdichtungslage gelangen und eine gewisse Gasdurchlässigkeit besitzen. Es können auch =Mischungen solcher Baustoffe untereinander oder Mischungen dieser Stoffe mit tonfreiem Sand angewendet werden.According to the additional invention you can now instead of the soundless Sandes also others, by squeezing it once to the final compaction quickly Use fillers to be brought. B. gravel or broken natural or artificial stones, for example in the form of small chips, gravel, bricks or Like. Broken slag can also be used if the properties are suitable; in general any granular good which, according to its nature, is unique Pressing is brought into a position in which there is no significant with further pressure Experiences more changes. Such means also include steel shot, metal granules, Sintered materials, metal balls and the like, which due to their specific weight get through the embankment in the final compression layer and a certain Gas permeability own. It can also = mixtures of such building materials with one another or mixtures these substances are applied with clay-free sand.

Durch die zusätzliche Erfindung ist man in der Lage, sich den verschiedensten örtlichen Bedingungen und den unterschiedlichen Bedingungen beim-Gießen weitgehend anzupassen und für jeden Fall den geeigneten Füllstoff oder die geeignete Füllstoffmischung zu ermitteln. Auch läßt sich jeweils derjenige Füllstoff benutzen, der die geringsten Kosten verursacht.With the additional invention one is able to get the most diverse local conditions and the different conditions when pouring largely adapt and for each case the suitable filler or the suitable filler mixture to investigate. It is also possible to use the filler that has the lowest Causes costs.

Claims (1)

PÄTENTANSPRUCH: Verfahren zur Herstellung von Gießformen mit einem praktisch tonfreien Hinterfüllstoff, nach Patent 889 687, dadurch gekennzeichnet, daß an Stelle des tonfreien Füllsandes ein durch einmaliges Zusammendrücken annähernd auf Endverdichtung zu bringender Füllstoff, wie Kies, gebrochene natürliche oder künstliche Steine (Kleinschlag, Schotter, Ziegelbrocken), Schlacke oder sonstiges körniges, tonfreies Gut, benutzt wird.CLAIM OF THE PATENT: Process for the production of casting molds with a practically clay-free back filler, according to patent 889 687, characterized in that that instead of the clay-free filler sand, an approximate one by squeezing it once filler to be brought to final compaction, such as gravel, broken natural or artificial stones (small chippings, gravel, bricks), slag or other granular, clay-free material, is used.
DESCH2490D 1944-07-04 1944-07-04 Molding process Expired DE900261C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH2490D DE900261C (en) 1944-07-04 1944-07-04 Molding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH2490D DE900261C (en) 1944-07-04 1944-07-04 Molding process

Publications (1)

Publication Number Publication Date
DE900261C true DE900261C (en) 1953-12-21

Family

ID=7423348

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH2490D Expired DE900261C (en) 1944-07-04 1944-07-04 Molding process

Country Status (1)

Country Link
DE (1) DE900261C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004509A1 (en) * 1988-10-25 1990-05-03 Brødrene Hartmann A/S Manufacture of moulded objects of plastic
GR890100687A (en) * 1988-10-25 1990-11-29 Hartmann As Brdr Method for the construction of objects having a stable outline
GR890100465A (en) * 1988-07-21 1991-12-10 Hartmann As Brdr Moulding and method for producing moulded objects
DE19540726A1 (en) * 1995-11-02 1997-05-07 Dsu Gmbh Foundry sand replacement formed from refuse incineration slags

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR890100465A (en) * 1988-07-21 1991-12-10 Hartmann As Brdr Moulding and method for producing moulded objects
WO1990004509A1 (en) * 1988-10-25 1990-05-03 Brødrene Hartmann A/S Manufacture of moulded objects of plastic
GR890100688A (en) * 1988-10-25 1990-11-29 Hartmann As Brdr Construction of moulded plastic objects
GR890100687A (en) * 1988-10-25 1990-11-29 Hartmann As Brdr Method for the construction of objects having a stable outline
DE19540726A1 (en) * 1995-11-02 1997-05-07 Dsu Gmbh Foundry sand replacement formed from refuse incineration slags

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