FR2160767A1 - Foundry moulds - formed of porous iron and a binder contg sand - Google Patents

Foundry moulds - formed of porous iron and a binder contg sand

Info

Publication number
FR2160767A1
FR2160767A1 FR7142527A FR7142527A FR2160767A1 FR 2160767 A1 FR2160767 A1 FR 2160767A1 FR 7142527 A FR7142527 A FR 7142527A FR 7142527 A FR7142527 A FR 7142527A FR 2160767 A1 FR2160767 A1 FR 2160767A1
Authority
FR
France
Prior art keywords
sand
model
binder
foundry moulds
support
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
FR7142527A
Other languages
French (fr)
Other versions
FR2160767B1 (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.)
Hoganas AB
Original Assignee
Hoganas AB
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 Hoganas AB filed Critical Hoganas AB
Priority to FR7142527A priority Critical patent/FR2160767A1/en
Publication of FR2160767A1 publication Critical patent/FR2160767A1/en
Application granted granted Critical
Publication of FR2160767B1 publication Critical patent/FR2160767B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/068—Semi-permanent moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Casting Devices For Molds (AREA)

Abstract

Foundry moulds in which a moulding material is shaped against a model in a moulding box are made by forming a porous esp. sponge iron support and injecting a sand esp. chromite, zircon or olivine cont'g. a heat-destroyed binder e.g. a furane between the support and the model, partic. so that the surface of the mould nearest the model is almost entirely sand. Before injection the support is pref. heated to a temp. at which the binder hardens. Sand occupies 10-50% of the total volume of mould material.
FR7142527A 1971-11-26 1971-11-26 Foundry moulds - formed of porous iron and a binder contg sand Granted FR2160767A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7142527A FR2160767A1 (en) 1971-11-26 1971-11-26 Foundry moulds - formed of porous iron and a binder contg sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7142527A FR2160767A1 (en) 1971-11-26 1971-11-26 Foundry moulds - formed of porous iron and a binder contg sand

Publications (2)

Publication Number Publication Date
FR2160767A1 true FR2160767A1 (en) 1973-07-06
FR2160767B1 FR2160767B1 (en) 1974-04-05

Family

ID=9086502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7142527A Granted FR2160767A1 (en) 1971-11-26 1971-11-26 Foundry moulds - formed of porous iron and a binder contg sand

Country Status (1)

Country Link
FR (1) FR2160767A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1250243A (en) * 1960-03-04 1961-01-06 Foundry Services Int Ltd Improvements to furnaces, ladles, molds and similar devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1250243A (en) * 1960-03-04 1961-01-06 Foundry Services Int Ltd Improvements to furnaces, ladles, molds and similar devices

Also Published As

Publication number Publication date
FR2160767B1 (en) 1974-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse