ATE6835T1 - GRANULATED ADDITIONAL MATERIAL FOR THE IMPROVEMENT OF FOUNDRY MOLDING SAND AND ITS MANUFACTURING PROCESS. - Google Patents

GRANULATED ADDITIONAL MATERIAL FOR THE IMPROVEMENT OF FOUNDRY MOLDING SAND AND ITS MANUFACTURING PROCESS.

Info

Publication number
ATE6835T1
ATE6835T1 AT81830010T AT81830010T ATE6835T1 AT E6835 T1 ATE6835 T1 AT E6835T1 AT 81830010 T AT81830010 T AT 81830010T AT 81830010 T AT81830010 T AT 81830010T AT E6835 T1 ATE6835 T1 AT E6835T1
Authority
AT
Austria
Prior art keywords
granulated
molding sand
improvement
manufacturing process
foundry molding
Prior art date
Application number
AT81830010T
Other languages
German (de)
Inventor
Giovanni Novelli
Athos Rinaldi
Original Assignee
Industria Chimica Carlo Laviosa Della Carlo Laviosa S.P.A.
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 Industria Chimica Carlo Laviosa Della Carlo Laviosa S.P.A. filed Critical Industria Chimica Carlo Laviosa Della Carlo Laviosa S.P.A.
Application granted granted Critical
Publication of ATE6835T1 publication Critical patent/ATE6835T1/en

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
    • 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)
  • Glanulating (AREA)

Abstract

The invention refers to a granulated material for preparation of foundry molding sand, to be added to them to improve their composition, reduce pollution and handling problems, which consists of a refractory framework in the form of granules the size of which ranges from 0.1 to 0.4 mm and an external coating on said refractory framework which in turn consists of a fit material for providing lustrous carbon. The refractory framework is formed by a zircon sand, chamotte, chromite, olivine, sillimenite, mullite or mixtures thereof, with a free silice content not greater than 3 %. The invention also relates to a hot-process and a cold-process for production of said granulated material.
AT81830010T 1980-01-21 1981-01-21 GRANULATED ADDITIONAL MATERIAL FOR THE IMPROVEMENT OF FOUNDRY MOLDING SAND AND ITS MANUFACTURING PROCESS. ATE6835T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8009323A IT1209745B (en) 1980-01-21 1980-01-21 GRANULAR MATERIAL FOR THE PREPARATION OF FOUNDRY FORMING LANDS AND ITS PRODUCTION PROCESS
EP81830010A EP0032881B1 (en) 1980-01-21 1981-01-21 Granulated material, and production method of same, as additive for improving properties of foundry molding sands

Publications (1)

Publication Number Publication Date
ATE6835T1 true ATE6835T1 (en) 1984-04-15

Family

ID=11128442

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81830010T ATE6835T1 (en) 1980-01-21 1981-01-21 GRANULATED ADDITIONAL MATERIAL FOR THE IMPROVEMENT OF FOUNDRY MOLDING SAND AND ITS MANUFACTURING PROCESS.

Country Status (4)

Country Link
EP (1) EP0032881B1 (en)
AT (1) ATE6835T1 (en)
DE (1) DE3162845D1 (en)
IT (1) IT1209745B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246324C3 (en) * 1982-12-15 1994-07-14 Iko Gmbh & Co Kg Use of additives to clay bonded foundry sand
DE3305745C2 (en) * 1983-02-17 1987-01-08 Hüttenes-Albertus Chemische Werke GmbH, 4000 Düsseldorf Process for producing a lustrous carbon former for foundry purposes
US5355931A (en) * 1992-09-04 1994-10-18 Brunswick Corporation Method of expendable pattern casting using sand with specific thermal properties
DE10326967A1 (en) * 2003-06-12 2004-12-30 Iko Minerals Gmbh Process for producing a core and foundry sand for foundry purposes
CN104646595A (en) * 2015-01-22 2015-05-27 安徽省繁昌县皖南阀门铸造有限公司 Core molding sand containing spherical quartz and preparation method of core molding sand

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458104B1 (en) * 1963-10-10 Ver Zur Foerderung Der Giesser Carbon-containing additive for foundry molding compounds
DE1952357A1 (en) * 1969-10-17 1971-04-29 Ravensberger Eisenhuette Styrene ethylene or propylene polymers - replacing carbon dust in casting mould comps
DE1920224B2 (en) * 1969-04-22 1975-06-12 Verein Zur Foerderung Der Giessereiindustrie, 4000 Duesseldorf Molding material made from natural or synthetic molding sands
DE2313649A1 (en) * 1973-03-19 1974-10-03 Buderus Eisenwerk FOUNDRY MOLDING SAND
DE2317218A1 (en) * 1973-04-06 1974-10-17 Heinze Gerald Mould and core sand mixt. contg. a buffer - the buffer prevents sand-iron reactions and defects due to sand expansion
DE2638042A1 (en) * 1975-09-17 1977-03-24 Fischer Ag Georg PROCESS FOR TREATMENT OF POROESE, GRAY BASE MATERIALS, IN PARTICULAR FOR THE PRODUCTION OF FOUNDRY SANDS
US4174225A (en) * 1976-04-12 1979-11-13 Ab Nynas-Petroleum Manufacturing moulds or mould cores

Also Published As

Publication number Publication date
EP0032881A1 (en) 1981-07-29
EP0032881B1 (en) 1984-03-28
IT1209745B (en) 1989-08-30
IT8009323A0 (en) 1980-01-21
DE3162845D1 (en) 1984-05-03

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties