GB850235A - Improvements relating to foundry cores - Google Patents

Improvements relating to foundry cores

Info

Publication number
GB850235A
GB850235A GB3818056A GB3818056A GB850235A GB 850235 A GB850235 A GB 850235A GB 3818056 A GB3818056 A GB 3818056A GB 3818056 A GB3818056 A GB 3818056A GB 850235 A GB850235 A GB 850235A
Authority
GB
United Kingdom
Prior art keywords
hardened
moulding
core
dec
insert
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
GB3818056A
Inventor
John Dennis Berry
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.)
BIRMIDAL DEVELOPMENTS Ltd
Original Assignee
BIRMIDAL DEVELOPMENTS 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 BIRMIDAL DEVELOPMENTS Ltd filed Critical BIRMIDAL DEVELOPMENTS Ltd
Priority to GB3818056A priority Critical patent/GB850235A/en
Publication of GB850235A publication Critical patent/GB850235A/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

Landscapes

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

Abstract

850,235. Cores. BIRMIDAL DEVELOPMENTS Ltd. Dec. 16, 1957 [Dec. 14, 1956], No. 38180/56. Class 83 (1). A core comprises a preformed, prehardened insert having a surface which forms part of the pattern surface of the core, and embedded in a body part of moulding-material hardened by a catalyst or gaseous hardener, the insert being composed of a moulding-material which, when hardened, is of greater mechanical strength than the hardened material of the body portion. A core for a monobloc I.C.E. casting has inserts 1 of resin-bonded sand, around which are blown a body-portion 2 of moulding-material with a sodium-silicate binder, and hardened by CO2. According to the Provisional Specification, the invention is applicable to moulds also. Specification 829,282 is referred to.
GB3818056A 1956-12-14 1956-12-14 Improvements relating to foundry cores Expired GB850235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3818056A GB850235A (en) 1956-12-14 1956-12-14 Improvements relating to foundry cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3818056A GB850235A (en) 1956-12-14 1956-12-14 Improvements relating to foundry cores

Publications (1)

Publication Number Publication Date
GB850235A true GB850235A (en) 1960-10-05

Family

ID=10401763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3818056A Expired GB850235A (en) 1956-12-14 1956-12-14 Improvements relating to foundry cores

Country Status (1)

Country Link
GB (1) GB850235A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756309A (en) * 1970-09-07 1973-09-04 Toyoda Automatic Loom Works Composite foundry core
DE3445732A1 (en) * 1984-12-14 1986-06-26 Mannesmann Rexroth GmbH, 8770 Lohr Method for the production of a mould core to be placed in a casting mould
FR2622132A1 (en) * 1987-10-22 1989-04-28 Erana Agustin Arana IMPROVEMENTS INTRODUCED IN THE FORMATION OF BLOCKS OR PACKAGES OF FOUNDRY CORES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756309A (en) * 1970-09-07 1973-09-04 Toyoda Automatic Loom Works Composite foundry core
DE3445732A1 (en) * 1984-12-14 1986-06-26 Mannesmann Rexroth GmbH, 8770 Lohr Method for the production of a mould core to be placed in a casting mould
FR2622132A1 (en) * 1987-10-22 1989-04-28 Erana Agustin Arana IMPROVEMENTS INTRODUCED IN THE FORMATION OF BLOCKS OR PACKAGES OF FOUNDRY CORES

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