FR2431886A1 - PROCESS AND DEVICE FOR CURING CORES AND / OR SAND MOLDS FOR THE CASTING OF FOUNDRY PIECES - Google Patents

PROCESS AND DEVICE FOR CURING CORES AND / OR SAND MOLDS FOR THE CASTING OF FOUNDRY PIECES

Info

Publication number
FR2431886A1
FR2431886A1 FR7915105A FR7915105A FR2431886A1 FR 2431886 A1 FR2431886 A1 FR 2431886A1 FR 7915105 A FR7915105 A FR 7915105A FR 7915105 A FR7915105 A FR 7915105A FR 2431886 A1 FR2431886 A1 FR 2431886A1
Authority
FR
France
Prior art keywords
catalyst
cores
casting
curing
molds
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.)
Granted
Application number
FR7915105A
Other languages
French (fr)
Other versions
FR2431886B1 (en
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
Priority claimed from DE19782833305 external-priority patent/DE2833305A1/en
Application filed by Individual filed Critical Individual
Publication of FR2431886A1 publication Critical patent/FR2431886A1/en
Application granted granted Critical
Publication of FR2431886B1 publication Critical patent/FR2431886B1/fr
Granted 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
    • B22C1/162—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 use of a gaseous treating agent for hardening the binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Le dispositif est destiné à améliorer l'injection d'air comprimé et de catalyseur dans les moules et noyaux de sable, et d'autre part, à réduire la quantité d'énergie consommée par cette opération. Pour cela on emmagasine l'air de balayage, détendu mais encore chaud dans l'enceinte formée par un dispositif de chauffage 7 et la chambre de mélange 9. Une pompe 14 injecte le catalyseur, dans cette enceinte, pendant les intervalles de repos de l'installation, entre les phases de travail et la chaleur de l'air de balayage vaporise le catalyseur en préparant ainsi une charge de catalyseur vaporisé et d'air qui sera injectée dans les moules ou noyaux lors de la phase de travail suivanteThe device is intended to improve the injection of compressed air and catalyst into the molds and sand cores, and on the other hand, to reduce the amount of energy consumed by this operation. For this, the purging air, relaxed but still hot, is stored in the enclosure formed by a heating device 7 and the mixing chamber 9. A pump 14 injects the catalyst into this enclosure during the rest intervals of the The installation, between the working phases and the heat of the purging air vaporizes the catalyst, thus preparing a charge of vaporized catalyst and air which will be injected into the molds or cores during the following working phase

FR7915105A 1978-07-28 1979-06-13 PROCESS AND DEVICE FOR CURING CORES AND / OR SAND MOLDS FOR THE CASTING OF FOUNDRY PIECES Granted FR2431886A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92890178A 1978-07-28 1978-07-28
DE19782833305 DE2833305A1 (en) 1978-07-28 1978-07-28 Catalytic hardening of sand cores or moulds in metal foundries - where hot air, which removes residual catalyst from hardened core, is reused in next hardening cycle

Publications (2)

Publication Number Publication Date
FR2431886A1 true FR2431886A1 (en) 1980-02-22
FR2431886B1 FR2431886B1 (en) 1985-02-22

Family

ID=25775218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915105A Granted FR2431886A1 (en) 1978-07-28 1979-06-13 PROCESS AND DEVICE FOR CURING CORES AND / OR SAND MOLDS FOR THE CASTING OF FOUNDRY PIECES

Country Status (7)

Country Link
AT (1) AT372317B (en)
CH (1) CH641067A5 (en)
FR (1) FR2431886A1 (en)
GB (1) GB2034220B (en)
IT (2) IT7953372V0 (en)
NL (1) NL7902403A (en)
SE (1) SE7902605L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168635A2 (en) * 1984-06-19 1986-01-22 Horst Werner Dipl.-Ing. Michel Apparatus for hardening sand cores and/or sand moulds with a hardenable binder

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1959023A1 (en) * 1969-11-25 1971-05-27 Cobomat Apparatebau Gmbh Adding of warm nebulized catalyst to found - ry sand cores
DE2025253A1 (en) * 1970-05-23 1971-12-02 Catalyst removal in a cold box foundry moulding process
DE2162137A1 (en) * 1971-12-15 1973-06-20 Michel Horst Werner Foundry sand mould/core hardening - using compressed air and an accurately metered gaseous catalyst to effect uniform hard
DE2356025A1 (en) * 1973-07-13 1975-01-30 Werner Lueber Hardening sand/resin moulded foundry cores - by exposure to an amine enriched gas and then a current of air
DE2405600A1 (en) * 1974-02-06 1975-08-07 Michel Horst Werner Mist prodn. from catalyst-air mixtures - for hardening foundry cores made by the cold box process
DE2414407A1 (en) * 1974-03-26 1975-10-16 Michel Horst Werner Ing Grad Cold box system of core forming for casting - CO2 injected to reduce cost of drying air
DE2550588B1 (en) * 1975-11-11 1976-07-01 Daimler Benz Ag Method and device for hardening sand mold bodies
DE2621153A1 (en) * 1976-05-13 1977-11-24 Daimler Benz Ag Hardening sand cores by cold box process - where catalyst is reclaimed from carrier gas after use
DE2800219A1 (en) * 1977-01-07 1978-07-13 Stone Wallwork Ltd GENERATOR FOR GENERATING A CATALYST FOR A BINDING AGENT AND A METHOD FOR GENERATING AND APPLYING SUCH A CATALYST
DE2704868A1 (en) * 1977-02-05 1978-08-10 Michel Horst Werner Ing Grad Foundry cores hardened by mixt. of catalyst and air - fed via programmed valves eliminating danger of explosion
DE2727794A1 (en) * 1977-06-21 1979-01-18 Daimler Benz Ag Foundry cores hardened by catalyst gas mixed with air - where analysers in gas recovery circuit prevent danger of an explosion

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1959023A1 (en) * 1969-11-25 1971-05-27 Cobomat Apparatebau Gmbh Adding of warm nebulized catalyst to found - ry sand cores
DE2025253A1 (en) * 1970-05-23 1971-12-02 Catalyst removal in a cold box foundry moulding process
DE2162137A1 (en) * 1971-12-15 1973-06-20 Michel Horst Werner Foundry sand mould/core hardening - using compressed air and an accurately metered gaseous catalyst to effect uniform hard
DE2356025A1 (en) * 1973-07-13 1975-01-30 Werner Lueber Hardening sand/resin moulded foundry cores - by exposure to an amine enriched gas and then a current of air
DE2405600A1 (en) * 1974-02-06 1975-08-07 Michel Horst Werner Mist prodn. from catalyst-air mixtures - for hardening foundry cores made by the cold box process
DE2414407A1 (en) * 1974-03-26 1975-10-16 Michel Horst Werner Ing Grad Cold box system of core forming for casting - CO2 injected to reduce cost of drying air
DE2550588B1 (en) * 1975-11-11 1976-07-01 Daimler Benz Ag Method and device for hardening sand mold bodies
DE2621153A1 (en) * 1976-05-13 1977-11-24 Daimler Benz Ag Hardening sand cores by cold box process - where catalyst is reclaimed from carrier gas after use
DE2800219A1 (en) * 1977-01-07 1978-07-13 Stone Wallwork Ltd GENERATOR FOR GENERATING A CATALYST FOR A BINDING AGENT AND A METHOD FOR GENERATING AND APPLYING SUCH A CATALYST
DE2704868A1 (en) * 1977-02-05 1978-08-10 Michel Horst Werner Ing Grad Foundry cores hardened by mixt. of catalyst and air - fed via programmed valves eliminating danger of explosion
DE2727794A1 (en) * 1977-06-21 1979-01-18 Daimler Benz Ag Foundry cores hardened by catalyst gas mixed with air - where analysers in gas recovery circuit prevent danger of an explosion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168635A2 (en) * 1984-06-19 1986-01-22 Horst Werner Dipl.-Ing. Michel Apparatus for hardening sand cores and/or sand moulds with a hardenable binder
EP0168635A3 (en) * 1984-06-19 1988-01-20 Horst Werner Dipl.-Ing. Michel Apparatus for hardening sand cores and/or sand moulds with a hardenable binder

Also Published As

Publication number Publication date
NL7902403A (en) 1980-01-30
GB2034220B (en) 1982-09-08
CH641067A5 (en) 1984-02-15
IT7953372V0 (en) 1979-06-29
FR2431886B1 (en) 1985-02-22
SE7902605L (en) 1980-01-29
IT1119310B (en) 1986-03-10
AT372317B (en) 1983-09-26
GB2034220A (en) 1980-06-04
ATA202279A (en) 1983-02-15
IT7968376A0 (en) 1979-06-29

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Legal Events

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