DE412497C - Additional mass for molding sand - Google Patents

Additional mass for molding sand

Info

Publication number
DE412497C
DE412497C DEST37494D DEST037494D DE412497C DE 412497 C DE412497 C DE 412497C DE ST37494 D DEST37494 D DE ST37494D DE ST037494 D DEST037494 D DE ST037494D DE 412497 C DE412497 C DE 412497C
Authority
DE
Germany
Prior art keywords
molding sand
additional mass
soot
coal
coal dust
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
DEST37494D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEST37494D priority Critical patent/DE412497C/en
Application granted granted Critical
Publication of DE412497C publication Critical patent/DE412497C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Description

Zusatzmasse für Formsand. Es ist bekannt, daß 'man dem Formsand für Grauguß Kohlenstaub oder Ruß zusetzt, um das Anbrennen des Gusses am Formsand zu verhindern. Auch der Zusatz von Seife ist bekannt als Bindemittel, aber mit dem Formsand mengen sich der schmierige Ruß und die Seife nicht vollständig, sie verklumpen, weil sie sofort Feuchtigkeit aus dem nassen Formsand anziehen.Additional mass for molding sand. It is known that the molding sand for Gray cast iron adds coal dust or soot to prevent the cast from sticking to the molding sand impede. The addition of soap is also known as a binder, but with that The greasy soot and the soap do not mix completely, they clump together, because they immediately attract moisture from the wet molding sand.

?1 ach der vorliegenden Erfindung werden Ruß und handelsübliches Seifenpulver innig gemischt und dann vor, während oder nach dein Mahlen von Kohle zu Staub mit letzterer vermengt. Diese Mischung ist eine innige, die beim Zusetzen zum Forinsan.d nicht klumpt, sich gut verteilt und von der man nur geringere Mengen benötigt. In dieser Zusammensetzung verteilen sich Ruß und Seifenpulver vollständig iin Formsand, da der Ruß an den Kohlenstaubkörnchen klebend haftet. Das Anbrennen des Formsandes an den Guß wird durch diesca Zusatz vollkommen verhindert.According to the present invention, carbon black and commercially available soap powder are used intimately mixed and then before, during or after your grinding of coal to dust the latter mixed up. This mixture is an intimate one, which when added to the Forinsan.d does not clump, is well distributed and of which only small amounts are needed. In With this composition, soot and soap powder are completely distributed in the molding sand, because the soot sticks to the grains of coal dust. The burning of the molding sand this addition completely prevents the casting from occurring.

Claims (1)

PATENT-ANsPRUCH: Verfahren zur Herstellung einer Zusatzmasse für Formsand unter Verwendung von Ruß und Kohlenstaub, dadurch gekennzeichnet, daß Ruß und Seifenpulver innig gemischt werden und dann vor, während oder nach dem Mahlen vo_i Kohle zu Kohlenstaub mit letzterer verrnenrf werden.PATENT CLAIM: Process for the production of an additional mass for molding sand using soot and coal dust, characterized in that soot and soap powder are intimately mixed and then before, during or after the grinding of coal to coal dust with the latter.
DEST37494D 1924-01-03 1924-01-03 Additional mass for molding sand Expired DE412497C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST37494D DE412497C (en) 1924-01-03 1924-01-03 Additional mass for molding sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST37494D DE412497C (en) 1924-01-03 1924-01-03 Additional mass for molding sand

Publications (1)

Publication Number Publication Date
DE412497C true DE412497C (en) 1925-04-21

Family

ID=7462947

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST37494D Expired DE412497C (en) 1924-01-03 1924-01-03 Additional mass for molding sand

Country Status (1)

Country Link
DE (1) DE412497C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742395C (en) * 1942-01-11 1943-12-01 Johannes Croning Molding compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742395C (en) * 1942-01-11 1943-12-01 Johannes Croning Molding compound

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