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GB864511A - Improvements in and relating to the hardening of foundry cores or moulds - Google Patents

Improvements in and relating to the hardening of foundry cores or moulds

Info

Publication number
GB864511A
GB864511A GB26973/59A GB2697359A GB864511A GB 864511 A GB864511 A GB 864511A GB 26973/59 A GB26973/59 A GB 26973/59A GB 2697359 A GB2697359 A GB 2697359A GB 864511 A GB864511 A GB 864511A
Authority
GB
United Kingdom
Prior art keywords
moulds
hardening
piston
vacuum
suction
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.)
Expired
Application number
GB26973/59A
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
Publication of GB864511A publication Critical patent/GB864511A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

864,511. Treating moulds and covers. HANSBERG, F. Aug. 6, 1959 [Aug. 30, 1958 (2)], No. 26973/59. Class 83 (1). [Also in Group XXVIII] Apparatus for hardening foundry cores and moulds by gaseous or atomized reagents, e.g. CO 2 gas, comprises a vacuum-chamber in which the moulds or cores are first subjected to an underpressure and then to the hardening means, the suction cylinder for the production of the vacuum being of nearly the same, or larger aircapacity, than the vacuum chamber. The vacuum-dome 13 is vertically-movable by the piston 16, and the large-capacity suction-piston 3 is operated by a piston 4, air being extracted from the dome through a spring-loaded non- return valve 9, and ejected from the cylinder through a spring-loaded valve 11. CO 2 gas &c. may be admitted through a bore 7a or 7b. The suction-piston is of a material resistant to the hardening-medium, e.g. rubber, plastic or ceramic.
GB26973/59A 1958-08-30 1959-08-06 Improvements in and relating to the hardening of foundry cores or moulds Expired GB864511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE864511X 1958-08-30

Publications (1)

Publication Number Publication Date
GB864511A true GB864511A (en) 1961-04-06

Family

ID=6801678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26973/59A Expired GB864511A (en) 1958-08-30 1959-08-06 Improvements in and relating to the hardening of foundry cores or moulds

Country Status (1)

Country Link
GB (1) GB864511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068703A (en) * 1975-09-10 1978-01-17 The Quaker Oats Company Apparatus for catalytic gassing in the manufacture of foundry cores and molds
FR2368320A1 (en) * 1976-10-21 1978-05-19 Stone Wallwork Ltd IMPROVEMENTS IN CATALYSIS, IN PARTICULAR FOR RESIN BINDS INTENDED FOR FOUNDRY MATERIALS
US5365995A (en) * 1993-12-27 1994-11-22 Ford Motor Company Method of curing hot box sand cores

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068703A (en) * 1975-09-10 1978-01-17 The Quaker Oats Company Apparatus for catalytic gassing in the manufacture of foundry cores and molds
FR2368320A1 (en) * 1976-10-21 1978-05-19 Stone Wallwork Ltd IMPROVEMENTS IN CATALYSIS, IN PARTICULAR FOR RESIN BINDS INTENDED FOR FOUNDRY MATERIALS
US5365995A (en) * 1993-12-27 1994-11-22 Ford Motor Company Method of curing hot box sand cores

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