FR2453699A1 - Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould - Google Patents

Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould

Info

Publication number
FR2453699A1
FR2453699A1 FR7909413A FR7909413A FR2453699A1 FR 2453699 A1 FR2453699 A1 FR 2453699A1 FR 7909413 A FR7909413 A FR 7909413A FR 7909413 A FR7909413 A FR 7909413A FR 2453699 A1 FR2453699 A1 FR 2453699A1
Authority
FR
France
Prior art keywords
casting
stand pipe
melt
brass
mould
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
FR7909413A
Other languages
French (fr)
Other versions
FR2453699B1 (en
Inventor
Regis Garnier
Gilles Renard
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.)
Societe Generale de Fonderie SA
Original Assignee
Societe Generale de Fonderie SA
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 Societe Generale de Fonderie SA filed Critical Societe Generale de Fonderie SA
Priority to FR7909413A priority Critical patent/FR2453699A1/en
Publication of FR2453699A1 publication Critical patent/FR2453699A1/en
Application granted granted Critical
Publication of FR2453699B1 publication Critical patent/FR2453699B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/08—Controlling, supervising, e.g. for safety reasons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating With Molten Metal (AREA)

Abstract

On the top of a vessel contg. molten metal is a mould or die, which can be filled via a vertical stand pipe partly immersed in the melt. The cavity in the vessel above the melt is filled with air or an inert gas, the pressure of which is raised to a level to drive the melt into the mould. At the end of casting, the gas pressure is reduced to a lower level before the next casting cycle. Pressure is sufficient to keep the melt at the top end of the stand pipe, i.e. above the level of the melt in the vessel. The pref. plant includes a gas pressure controller used to switch the gas pressure between the two levels. When casting brass, dross consisting e.g. of Zn0 can enter the stand pipe and the mould so defective castings are obtd. The invention eliminates this defect.
FR7909413A 1979-04-13 1979-04-13 Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould Granted FR2453699A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7909413A FR2453699A1 (en) 1979-04-13 1979-04-13 Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7909413A FR2453699A1 (en) 1979-04-13 1979-04-13 Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould

Publications (2)

Publication Number Publication Date
FR2453699A1 true FR2453699A1 (en) 1980-11-07
FR2453699B1 FR2453699B1 (en) 1983-02-04

Family

ID=9224308

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909413A Granted FR2453699A1 (en) 1979-04-13 1979-04-13 Low pressure casting of metals, esp. brass - which is kept at top end of stand pipe between casting cycles, so no dross can enter mould

Country Status (1)

Country Link
FR (1) FR2453699A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1503054A (en) * 1965-11-30 1967-11-24 Die casting device
FR2108075A1 (en) * 1970-09-29 1972-05-12 Gravicast Patent Gmbh
FR2329390A1 (en) * 1975-10-27 1977-05-27 Inst Metalnosnanie Technolo LOW PRESSURE OR BACK PRESSURE CASTING MACHINE
FR2367566A1 (en) * 1976-10-18 1978-05-12 Pont A Mousson METHOD AND DEVICE FOR CONTROLLING A LOW PRESSURE REPETITIVE CASTING POCKET

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1503054A (en) * 1965-11-30 1967-11-24 Die casting device
FR2108075A1 (en) * 1970-09-29 1972-05-12 Gravicast Patent Gmbh
FR2329390A1 (en) * 1975-10-27 1977-05-27 Inst Metalnosnanie Technolo LOW PRESSURE OR BACK PRESSURE CASTING MACHINE
FR2367566A1 (en) * 1976-10-18 1978-05-12 Pont A Mousson METHOD AND DEVICE FOR CONTROLLING A LOW PRESSURE REPETITIVE CASTING POCKET

Also Published As

Publication number Publication date
FR2453699B1 (en) 1983-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse