ES341069A1 - Method of preparing foundry moulds and cores of sand - Google Patents

Method of preparing foundry moulds and cores of sand

Info

Publication number
ES341069A1
ES341069A1 ES341069A ES341069A ES341069A1 ES 341069 A1 ES341069 A1 ES 341069A1 ES 341069 A ES341069 A ES 341069A ES 341069 A ES341069 A ES 341069A ES 341069 A1 ES341069 A1 ES 341069A1
Authority
ES
Spain
Prior art keywords
sand
phenol
catalyst
mixed
phenolic resin
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
ES341069A
Other languages
Spanish (es)
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of ES341069A1 publication Critical patent/ES341069A1/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
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/2246—Condensation polymers of aldehydes and ketones
    • 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
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0025—Crosslinking or vulcanising agents; including accelerators

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

The invention comprises a process of making a sand core or mould by hardening a phenolic resin in the presence of an organic carboxylic acid or an ester thereof having 2-10 carbon atoms per molecule, as catalyst. The phenolic resin may be derived from 0À7-3 moles of aldehyde per mole of phenol and may contain up to 3% nitrogen derived from a nitrogenous reactant, e.g. urea. 20-30% of catalyst may be used and compounds specified include the methyl and ethyl esters of maleic and lactic acids. These may be mixed with boric acid dissolved in glycerol or propylene glycol optionally containing water and a quantity of furfuryl alcohol not greater than the weight of phenol may also be added. 1-4% of the resin together with some hardener may be mixed with sand containing at least 99% silica and used to make foundry cores and moulds by the hot box method.
ES341069A 1966-05-28 1967-05-27 Method of preparing foundry moulds and cores of sand Expired ES341069A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1843566 1966-05-28
IT1243466 1966-05-28

Publications (1)

Publication Number Publication Date
ES341069A1 true ES341069A1 (en) 1968-06-16

Family

ID=26326514

Family Applications (1)

Application Number Title Priority Date Filing Date
ES341069A Expired ES341069A1 (en) 1966-05-28 1967-05-27 Method of preparing foundry moulds and cores of sand

Country Status (3)

Country Link
ES (1) ES341069A1 (en)
GB (1) GB1180119A (en)
NL (1) NL6707385A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023183192A1 (en) * 2022-03-22 2023-09-28 ASK Chemicals LLC Boric acid as a curing adjuvant in a warm box process

Also Published As

Publication number Publication date
GB1180119A (en) 1970-02-04
NL6707385A (en) 1967-11-29

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