GB653530A - Improved method of preparing a sand-core for foundry-use - Google Patents

Improved method of preparing a sand-core for foundry-use

Info

Publication number
GB653530A
GB653530A GB4168/48A GB416848A GB653530A GB 653530 A GB653530 A GB 653530A GB 4168/48 A GB4168/48 A GB 4168/48A GB 416848 A GB416848 A GB 416848A GB 653530 A GB653530 A GB 653530A
Authority
GB
United Kingdom
Prior art keywords
peroxide
oil
sand
core
hydrogen
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
GB4168/48A
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.)
Oel und Chemie Werk AG
Original Assignee
Oel und Chemie Werk AG
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 Oel und Chemie Werk AG filed Critical Oel und Chemie Werk AG
Publication of GB653530A publication Critical patent/GB653530A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22C1/20—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 of organic agents
    • B22C1/24—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 of organic agents of oily or fatty substances; of distillation residues therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

A core is made from sand, drying oil and an accelerator including a substance containing the peroxide group, the proportions being such that an adequate bond is formed on setting, but this does not occur before moulding is finished. Suitable oils are tung, oiticica, dehydrated castor, linseed, perilla, sunflower seed, grapeseed, soya and tall. They may be blown with air, heat polymerized, bodied, vulcanized or isomerized. The peroxide compound may be inorganic, e.g. peroxides of hydrogen, sodium, barium or zinc or alkali perborates, percarbonates or persulphates, or organic, e.g. alkyl-derivatives of hydrogen peroxide, e.g. ethyl peroxide and benzoyl peroxide. The peroxide compound may be mixed with the oil before use or be sprayed on to the oil bonded body. The usual metallic dryers may be added also. Some examples of suitable mixtures are given. The Specification as open to inspection under Sect. 91 comprises also the application of the mixtures of oil and accelerator to the making of protective coatings, impregnated paper or textiles, laminated stock and sheet such as linoleum or oil cloth. This subject-matter does not appear in the Specification as accepted.
GB4168/48A 1947-02-15 1948-02-12 Improved method of preparing a sand-core for foundry-use Expired GB653530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH653530X 1947-02-15

Publications (1)

Publication Number Publication Date
GB653530A true GB653530A (en) 1951-05-16

Family

ID=4526310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4168/48A Expired GB653530A (en) 1947-02-15 1948-02-12 Improved method of preparing a sand-core for foundry-use

Country Status (1)

Country Link
GB (1) GB653530A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023112A (en) * 1956-05-25 1962-02-27 Tobler August Core oils, foundry cores and moulds and methods of making the same
EP0363568A2 (en) * 1988-09-30 1990-04-18 Hungaroben Kft Binder systems and processes using these for decarburisation free from coal dust for the production of bentonite bonds and glass cores

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023112A (en) * 1956-05-25 1962-02-27 Tobler August Core oils, foundry cores and moulds and methods of making the same
EP0363568A2 (en) * 1988-09-30 1990-04-18 Hungaroben Kft Binder systems and processes using these for decarburisation free from coal dust for the production of bentonite bonds and glass cores
GR890100397A (en) * 1988-09-30 1990-10-31 Hungaroben Kft Process for preparing improved binding material system
EP0363568A3 (en) * 1988-09-30 1991-03-27 Hungaroben Kft Binder systems and processes using these for decarburisation free from coal dust for the production of bentonite bonds and glass cores

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