GB789769A - Improvements in making casting molds - Google Patents

Improvements in making casting molds

Info

Publication number
GB789769A
GB789769A GB37111/55A GB3711155A GB789769A GB 789769 A GB789769 A GB 789769A GB 37111/55 A GB37111/55 A GB 37111/55A GB 3711155 A GB3711155 A GB 3711155A GB 789769 A GB789769 A GB 789769A
Authority
GB
United Kingdom
Prior art keywords
refractory
flask
layer
plate
cement
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
GB37111/55A
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.)
AUSTENAL LAB Inc
Original Assignee
AUSTENAL LAB Inc
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 AUSTENAL LAB Inc filed Critical AUSTENAL LAB Inc
Publication of GB789769A publication Critical patent/GB789769A/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
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/03—Sand moulds or like moulds for shaped castings formed by vacuum-sealed moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

789,769. Moulding-processes. AUSTENAL LABORATORIES, Inc. Dec. 28, 1955 [Jan. 5, 1955], No. 37111/55. Drawings to Specification. Class 83 (1). In a moulding process, an expendable-pattern is coated with a liquid-suspension of a finegrained refractory which is caused to set hard, and the coated pattern is supported in a flask and surrounded with dry unbonded granular refractory material which is packed to substantially its practical maximum-bulk-density, as by shaking, vibrating, tamping, &c. The flask may be closed at each end by a refractory cement-layer. Alternatively, one end-closure may be in the form of a perforated metal plate pressed against the back-up refractory by a threaded retainer-ring, clamps, &c. Such a plate may also be used to hold a coarse-grained refractory back-up in position and under pressure, while a finer-grained refractory is percolated through the holes of the plate and into the interstices between the coarserparticles. To minimize differential expansion and contraction of the flask and refractory back-up during preheating, the flask is enclosed in a layer of heat-insulating material, such as asbestos-paper, high-temperature ceramic paint or cement, or a highly-reflective layer of bright metal. Specification 601,260 is referred to.
GB37111/55A 1955-01-05 1955-12-28 Improvements in making casting molds Expired GB789769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US338929XA 1955-01-05 1955-01-05

Publications (1)

Publication Number Publication Date
GB789769A true GB789769A (en) 1958-01-29

Family

ID=21873069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37111/55A Expired GB789769A (en) 1955-01-05 1955-12-28 Improvements in making casting molds

Country Status (4)

Country Link
BE (1) BE544166A (en)
CH (1) CH338929A (en)
FR (1) FR1145273A (en)
GB (1) GB789769A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019497A (en) * 1958-11-21 1962-02-06 Howe Sound Co Making fine grained castings
US3766969A (en) * 1967-12-11 1973-10-23 Full Mold Process Inc Air breathing flask for foundry mold
US4139045A (en) * 1976-05-20 1979-02-13 Vki-Rheinhold & Mahla Ag Casting method and apparatus
GB2116889A (en) * 1982-03-23 1983-10-05 Acme Conveyors & Constr A process of moulding a metal casting mould
WO2007092283A2 (en) * 2006-02-07 2007-08-16 S. C. Johnson & Son, Inc. Air treatment device with controlled pore size substrate, and substrate therefor
CN102198489A (en) * 2011-05-13 2011-09-28 无锡小天鹅精密铸造有限公司 Insulation riser and moulding method thereof
EP3135399A1 (en) * 2015-08-31 2017-03-01 Hyundai Motor Company Method of manufactruring precision cast parts for vehicle exhaust systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993218A (en) * 1973-01-11 1974-09-05

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019497A (en) * 1958-11-21 1962-02-06 Howe Sound Co Making fine grained castings
US3766969A (en) * 1967-12-11 1973-10-23 Full Mold Process Inc Air breathing flask for foundry mold
US4139045A (en) * 1976-05-20 1979-02-13 Vki-Rheinhold & Mahla Ag Casting method and apparatus
GB2116889A (en) * 1982-03-23 1983-10-05 Acme Conveyors & Constr A process of moulding a metal casting mould
US7820188B2 (en) 2006-02-07 2010-10-26 S.C. Johnson & Son, Inc. Air treatment device with controlled pore size substrate
WO2007092283A3 (en) * 2006-02-07 2007-10-25 Johnson & Son Inc S C Air treatment device with controlled pore size substrate, and substrate therefor
WO2007092283A2 (en) * 2006-02-07 2007-08-16 S. C. Johnson & Son, Inc. Air treatment device with controlled pore size substrate, and substrate therefor
AU2007212630B2 (en) * 2006-02-07 2010-11-04 S.C. Johnson & Son, Inc. Air treatment device with controlled pore size substrate, and substrate therefor
US8227400B2 (en) 2006-02-07 2012-07-24 S. C. Johnson & Son, Inc. Air treatment device with controlled pore size substrate
CN101410143B (en) * 2006-02-07 2013-04-17 S.C.约翰逊父子公司 Air treatment device with controlled pore size substrate and the substrate
CN102198489A (en) * 2011-05-13 2011-09-28 无锡小天鹅精密铸造有限公司 Insulation riser and moulding method thereof
CN102198489B (en) * 2011-05-13 2013-01-02 无锡小天鹅精密铸造有限公司 Insulation riser and moulding method thereof
EP3135399A1 (en) * 2015-08-31 2017-03-01 Hyundai Motor Company Method of manufactruring precision cast parts for vehicle exhaust systems
CN106475520A (en) * 2015-08-31 2017-03-08 现代自动车株式会社 The method for manufacturing the hot investment casting part for vehicle exhaust system

Also Published As

Publication number Publication date
BE544166A (en)
CH338929A (en) 1959-06-15
FR1145273A (en) 1957-10-24

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