FR2146442A1 - Shell moulding - using a trellis structure within the back-up sand to increase mechanical strength - Google Patents

Shell moulding - using a trellis structure within the back-up sand to increase mechanical strength

Info

Publication number
FR2146442A1
FR2146442A1 FR7226248A FR7226248A FR2146442A1 FR 2146442 A1 FR2146442 A1 FR 2146442A1 FR 7226248 A FR7226248 A FR 7226248A FR 7226248 A FR7226248 A FR 7226248A FR 2146442 A1 FR2146442 A1 FR 2146442A1
Authority
FR
France
Prior art keywords
sand
trellis
shell moulding
mechanical strength
trellis structure
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
FR7226248A
Other languages
English (en)
Other versions
FR2146442B1 (fr
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
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 Alusuisse Holdings AG filed Critical Alusuisse Holdings AG
Publication of FR2146442A1 publication Critical patent/FR2146442A1/fr
Application granted granted Critical
Publication of FR2146442B1 publication Critical patent/FR2146442B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
FR7226248A 1971-07-21 1972-07-20 Shell moulding - using a trellis structure within the back-up sand to increase mechanical strength Granted FR2146442A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1078871A CH541371A (de) 1971-07-21 1971-07-21 Verfahren zur Herstellung einer maskenförmigen Sandgussformhälfte

Publications (2)

Publication Number Publication Date
FR2146442A1 true FR2146442A1 (en) 1973-03-02
FR2146442B1 FR2146442B1 (fr) 1977-07-22

Family

ID=4366870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7226248A Granted FR2146442A1 (en) 1971-07-21 1972-07-20 Shell moulding - using a trellis structure within the back-up sand to increase mechanical strength

Country Status (5)

Country Link
AT (1) AT328632B (fr)
BE (1) BE786458A (fr)
CH (1) CH541371A (fr)
FR (1) FR2146442A1 (fr)
IT (1) IT963183B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121646A (en) * 1976-10-13 1978-10-24 National Engineering Company Method and apparatus for making molds

Also Published As

Publication number Publication date
FR2146442B1 (fr) 1977-07-22
CH541371A (de) 1973-09-15
BE786458A (fr) 1972-11-16
AT328632B (de) 1976-03-25
ATA628072A (de) 1975-06-15
IT963183B (it) 1974-01-10

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Legal Events

Date Code Title Description
ST Notification of lapse