FR2242177A1 - Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot - Google Patents

Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot

Info

Publication number
FR2242177A1
FR2242177A1 FR7332240A FR7332240A FR2242177A1 FR 2242177 A1 FR2242177 A1 FR 2242177A1 FR 7332240 A FR7332240 A FR 7332240A FR 7332240 A FR7332240 A FR 7332240A FR 2242177 A1 FR2242177 A1 FR 2242177A1
Authority
FR
France
Prior art keywords
air
mixt
sand
shooter
mfr
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
FR7332240A
Other languages
French (fr)
Other versions
FR2242177B1 (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
Application filed by Individual filed Critical Individual
Priority to FR7332240A priority Critical patent/FR2242177A1/en
Publication of FR2242177A1 publication Critical patent/FR2242177A1/en
Application granted granted Critical
Publication of FR2242177B1 publication Critical patent/FR2242177B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/23—Compacting by gas pressure or vacuum
    • B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Sand mixed with a synthetic org. binder is shot into a mould- or core-box and the mixt. is then hardened instantaneously at room temp. using a catalyst gas. Air at a pressure of 0.01-2 bars is injected into the sand mixt. in the shooter to put the mixt. into suspension; 0.01-0.1 seconds later, a second, -arger air pressure is used to shoot the mixt. into the moulding box. The pref. machine has a coaxial, perforated pipe mounted inside the shooter chamber for carrying out first stage; filters are used on the air supply so that sand does get into the air lines and facilities are provided for clamping the mould- or core-box, making the shot, gassing the mould and ejecting it.
FR7332240A 1973-08-31 1973-08-31 Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot Granted FR2242177A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7332240A FR2242177A1 (en) 1973-08-31 1973-08-31 Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332240A FR2242177A1 (en) 1973-08-31 1973-08-31 Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot

Publications (2)

Publication Number Publication Date
FR2242177A1 true FR2242177A1 (en) 1975-03-28
FR2242177B1 FR2242177B1 (en) 1976-10-01

Family

ID=9124736

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332240A Granted FR2242177A1 (en) 1973-08-31 1973-08-31 Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot

Country Status (1)

Country Link
FR (1) FR2242177A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455937A1 (en) * 1979-05-08 1980-12-05 Sintokogio Ltd MODEL PLATE MOLDING METHOD AND APPARATUS
CN104190879A (en) * 2014-09-09 2014-12-10 侯马市晋烽机械铸造有限公司 Check valve sand supply device of sand ejector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455937A1 (en) * 1979-05-08 1980-12-05 Sintokogio Ltd MODEL PLATE MOLDING METHOD AND APPARATUS
CN104190879A (en) * 2014-09-09 2014-12-10 侯马市晋烽机械铸造有限公司 Check valve sand supply device of sand ejector

Also Published As

Publication number Publication date
FR2242177B1 (en) 1976-10-01

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Legal Events

Date Code Title Description
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GC Lien (pledge) constituted