GB643778A - Improvements in or relating to the joining of sand cores - Google Patents

Improvements in or relating to the joining of sand cores

Info

Publication number
GB643778A
GB643778A GB1482848A GB1482848A GB643778A GB 643778 A GB643778 A GB 643778A GB 1482848 A GB1482848 A GB 1482848A GB 1482848 A GB1482848 A GB 1482848A GB 643778 A GB643778 A GB 643778A
Authority
GB
United Kingdom
Prior art keywords
hardener
setting
sand cores
joining
relating
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
GB1482848A
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.)
Foundry Services Ltd
Original Assignee
Foundry Services Ltd
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 Foundry Services Ltd filed Critical Foundry Services Ltd
Priority to GB1482848A priority Critical patent/GB643778A/en
Publication of GB643778A publication Critical patent/GB643778A/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
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores

Abstract

643,778. Mould and core materials ; making cores. FOUNDRY SERVICES, Ltd., and STRAUSS, K. June 1, 1948, No. 14828. [Class 83 (i)] Sand cores are joined by treating the joint surfaces with urea formaldehyde type or other synthetic resin, the setting of which can be accelerated by a hardener, applying a hardener to one or both the surfaces and bring the parts together. Suitable hardeners are solutions of ammonium salts, organic ammonium compounds, or oraganic or inorganic acids in water. To prevent soaking in, the resin may contain mica or vermiculite. The time of setting can be controlled by varying the concentrations and temperature. Specification 599,463 is referred to.
GB1482848A 1948-06-01 1948-06-01 Improvements in or relating to the joining of sand cores Expired GB643778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1482848A GB643778A (en) 1948-06-01 1948-06-01 Improvements in or relating to the joining of sand cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1482848A GB643778A (en) 1948-06-01 1948-06-01 Improvements in or relating to the joining of sand cores

Publications (1)

Publication Number Publication Date
GB643778A true GB643778A (en) 1950-09-27

Family

ID=10048193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1482848A Expired GB643778A (en) 1948-06-01 1948-06-01 Improvements in or relating to the joining of sand cores

Country Status (1)

Country Link
GB (1) GB643778A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728122A (en) * 1951-06-08 1955-12-27 Cooper Alloy Corp Method and apparatus for shell moulding
US2791811A (en) * 1953-08-17 1957-05-14 John H Schmid Shell mold and apparatus for producing it
US4694883A (en) * 1982-01-07 1987-09-22 Klockner-Humboldt-Deutz Ag Hollow core molding apparatus
EP0309378A1 (en) * 1987-09-21 1989-03-29 United Technologies Corporation Method for bonding ceramic casting cores

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728122A (en) * 1951-06-08 1955-12-27 Cooper Alloy Corp Method and apparatus for shell moulding
US2791811A (en) * 1953-08-17 1957-05-14 John H Schmid Shell mold and apparatus for producing it
US4694883A (en) * 1982-01-07 1987-09-22 Klockner-Humboldt-Deutz Ag Hollow core molding apparatus
EP0309378A1 (en) * 1987-09-21 1989-03-29 United Technologies Corporation Method for bonding ceramic casting cores

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